• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    There is disclosed a structure for radiating heat generated by TFTs in a liquid crystal panel. A DLC film 125 is provided on a resin interlayer film 123 disposed on the TFTs 105, 109, and 113. The DLC film 125 can be easily formed on the resin film, and has high heat conductivity, so that the film can be made to function as a heat radiating layer.
    公开号:US20010002144A1
    申请号:US09/748,166
    申请日:2000-12-27
    公开日:2001-05-31
    发明作者:Shunpei Yamazaki
    申请人:Shunpei Yamazaki；
    IPC主号:G02F1-133385
    专利说明:
    [0001] 1. Field of the Invention [0001]
    [0002] The present invention relates to the structure of a reflection type liquid crystal display device. [0002]
    [0003] 2. Description of the Related Art [0003]
    [0004] A reflection type liquid crystal panel has been known. Also, in an active matrix type liquid crystal panel, there is known a structure in which a peripheral driving circuit is integrated on the same substrate as an active matrix circuit. This structure is known as a peripheral driving circuit integration type. [0004]
    [0005] In a peripheral driving circuit integration type liquid crystal panel, as a result that high picture quality is pursued, a peripheral driving circuit is required to operate at such a high speed as several tens MHz or more. [0005]
    [0006] However, high speed operation causes a problem of heat generation from a device. Especially, since a liquid crystal panel uses a glass substrate or a quartz substrate, the panel has a problem that there is no escape for heat generated by a device (the thermal conductivity of quartz is {fraction (1/100)}or less than that of single crystal silicon). [0006]
    [0007] Also, a reflection type liquid crystal display panel is easy to secure a required aperture factor even if it is miniaturized. Accordingly, it has been considered to use the display panel for a projection type display. [0007]
    [0008] However, since a liquid crystal panel for a projector is miniaturized (about 3 inches or less in diagonal), the above described problem of heat generation (heat generation from a peripheral driving circuit) especially becomes important. [0008]
    [0009] Specifically, the peripheral driving circuit has such problems that the device characteristic is changed or deteriorated, or the device itself is broken by the heat generated by the circuit itself. [0009] SUMMARY OF THE INVENTION
    [0010] An object of the present invention is therefore to provide a structure of a display device capable of solving this sort of problem. [0010]
    [0011] According to one aspect of the present invention, a display device is comprised of a pixel matrix portion; a peripheral driving circuit portion disposed on the same substrate as the pixel matrix portion; a thin film transistor disposed in each of the pixel matrix portion and the peripheral driving circuit portion; an interlayer insulating film made of resin material and disposed over the thin film transistor; and a carbon film disposed on the interlayer insulating film. [0011]
    [0012] According to another aspect of the present invention, a display device is comprised of a pixel matrix portion; a peripheral driving circuit portion disposed on the same substrate as the pixel matrix portion; a thin film transistor disposed in each of the pixel matrix portion and the peripheral driving circuit portion, an interlayer insulating film made of resin material and disposed over the thin film transistor; and a carbon a film as a heat releasing layer disposed on the interlayer insulating film. [0012]
    [0013] It is preferable to use a DLC (Diamond-like Carbon) film as the carbon film. The DLC film is a carbon film comprising amorphous carbon having SP[0013] 3 bonds. BRIEF DESCRIPTION OF THE DRAWINGS
    [0014] In the accompanying drawings: [0014]
    [0015] FIG. 1 is a view showing a cross section of a liquid crystal panel; [0015]
    [0016] FIG. 2 is a view showing the Raman spectrum of a DLC film; and [0016]
    [0017] FIGS. 3A to [0017] 3F are views schematically showing devices using the present invention. DETAILED DESCRIPTION OF THE INVENTION
    [0018] According to the present invention, as shown in FIG. 1, a DLC film [0018] 125 is provided on an interlayer insulating film 123 and a shielding titanium film 124. The DLC film effectively releases heat generated by a pixel TFT 105, and TFTs 109, 113 constituting a peripheral driving circuit. Embodiment 1
    [0019] FIG. 1 schematically shows a cross section of a reflection type liquid crystal panel using the present invention. In the drawing, reference numeral [0019] 101 denotes a glass substrate. A quartz substrate may be used instead of the glass substrate.
    [0020] An NTFT [0020] 105 (N-channel thin film transistor, also called a pixel TFT) disposed in an active matrix circuit, and a PTFT 109 and an NTFT 113 constituting a peripheral driving circuit are disposed on the glass substrate 101.
    [0021] A drain region [0021] 102, a channel region 103, and a source region 104 are formed in the NTFT 105.
    [0022] A source region [0022] 106, a channel region 107, and a drain region 108 are formed in the PTFT 109.
    [0023] A source region [0023] 112, a channel region 111, and a drain region 110 are formed in the NTFT 113.
    [0024] The thickness of an active layer of the respective TFTs is made 50 nm. A silicon oxide film with a thickness of 100 nm as a common gate insulating film is provided in the respective TFTs. [0024]
    [0025] The respective TFTs are covered with a silicon oxide film [0025] 114 with a thickness of 700 nm as an interlayer insulating film.
    [0026] A source wiring line [0026] 116 brought into contact with the source region 104 of the NTFT 105, and a drain electrode 115 brought into contact with the drain region of the NTFT 105, each made of an aluminum film with a thickness of 500 nm, are disposed on the interlayer insulating film 114.
    [0027] Also, a source electrode [0027] 117 brought into contact with the source region 106 of the PTFT 109 constituting the peripheral driving circuit, and a drain electrode 118 brought into contact with the drain region 108 of the PTFT 109 are disposed.
    [0028] Also, a source electrode [0028] 120 brought into contact with the source region 112 of the NTFT 113 constituting the peripheral driving circuit, a drain electrode 119 brought into contact with the drain region 110 of the NTFT 113 are disposed.
    [0029] A titanium film with a thickness of 100 nm is formed over and under the electrodes and wiring lines designated by [0029] 115, 116, 117, 118, 119, and 120. This film is necessary so as to have an excellent contact.
    [0030] A silicon nitride film [0030] 121 with a thickness of 50 nm is formed to cover the electrodes and wiring lines designated by 115, 116, 117, 118, 119, and 120.
    [0031] Further, a pattern [0031] 122 made of a titanium film is formed. A capacitance is formed by the pattern 122 made of the titanium film and the drain electrode 115 through the silicon nitride film 121.
    [0032] Reference numeral [0032] 123 denotes a polyimide resin film with a thickness of 800 nm. This resin film is provided to absorb roughness formed by the existence of the TFTs, the electrodes, and the wiring lines so that a flattened surface is produced.
    [0033] Resin material such as polyimide amide, polyamide, acryl, and epoxy may be used other than polyimide. [0033]
    [0034] An electromagnetic shielding pattern [0034] 124 made of a titanium film with a thickness of 100 nm is disposed on the interlayer insulating film 123. This electromagnetic shielding pattern is disposed so that a reflecting pixel electrode 127 does not interfere with the source wiring line and the TFT.
    [0035] A DLC (Diamond-like Carbon) [0035] 125 with a thickness of 1000 nm is formed.
    [0036] As the DLC film, it is preferable to use a film which exhibits the Raman spectrum as shown in FIG. 2. [0036]
    [0037] Since the DLC film can be easily formed on the resin material, and has high heat conductivity, the DLC film effectively functions as a heat sink especially for diffusing heat generated by the TFTs of the peripheral driving circuit. [0037]
    [0038] In a reflection type liquid crystal panel, there is no problem even if the DLC film extends to a pixel matrix portion. The adoption of such a structure enables the film to deal with heat generation from not only the peripheral driving circuit but also the pixel matrix portion. [0038]
    [0039] Incidentally, although an AlN film and a diamond film other than the DLC film may be exemplified as a thin film that can be used as a heat sink, the DLC film can be most easily formed on a resin material. [0039]
    [0040] A polyimide resin film [0040] 126 with an average thickness of 1 μm as an interlayer insulating film is formed on the DLC film, and further the reflecting pixel electrode 127 having a thickness of 400 nm and made of aluminum, is provided.
    [0041] In this embodiment, although a top-gate type TFT is shown, a bottom-gate type TFT may be adopted. [0041] Embodiment 2
    [0042] In this embodiment, examples of display devices using the reflection type liquid crystal panel obtained by using the present invention will be described. [0042]
    [0043] FIG. 3A shows a portable information processing terminal, which has a communication function using telephone lines. [0043]
    [0044] This device includes an integrated circuit [0044] 2006 in the inside of a main body 2001. Further, this device includes a reflection type active matrix liquid crystal panel 2005 in which TFTs as switching elements are disposed, a camera portion 2002 for incorporating a picture image, and an operation switch 2004.
    [0045] FIG. 3B shows an electric device called a head mount display. This device has a function to display a false picture image in front of eyes when a main body [0045] 2101 is mounted on a head through a band 2103. The picture image is formed by active matrix type liquid crystal panels 2102 corresponding to right and left eyes.
    [0046] FIG. 3C shows an electric device having a function to display map information and various kinds of information based on signals from an artificial satellite. Information from an artificial satellite is received by an antenna [0046] 2204, and is processed by an electric circuit provided in the inside of a main body 2201, and necessary information is displayed on an active matrix type reflection type liquid crystal panel 2202.
    [0047] The operation of the device is carried out by an operation switch [0047] 2203. Even in such a device, a circuit using TFTs is used.
    [0048] FIG. 3D shows a portable telephone. This electric device includes a main body [0048] 2301, an antenna 2306, an audio output portion 2302, a liquid crystal panel 2304, an operation switch 2305, and an audio input portion 2303.
    [0049] FIG. 3E shows a portable imaging device called a video camera. This device includes a reflection type liquid crystal panel [0049] 2402 attached to a close-open member of a main body 2401, and an operation switch 2404 attached to the close-open member.
    [0050] Further, the main body [0050] 2401 is provided with an image receiving portion 2406, an integrated circuit 2407, an audio input portion 2403, an operation switch 2404, and a battery 2405.
    [0051] FIG. 3F shows a projection type liquid crystal display device. This device includes a main body [0051] 2501 provided with a light source 2502, a reflection type liquid crystal panel 2503, and an optical system 2504, and has a function to project a picture image onto a screen 2505.
    [0052] It should be noted that the present invention can also be used for a flat panel display other than the case of using a liquid crystal. For example, in an EL display, the present invention can be used when an under layer of a light emitting layer is flattened. The present invention can also be used for an EC display and the like. [0052]
    [0053] That is, the present invention can be used for realizing the structure in which a surface over a pixel region is desired to be flat. [0053]
    [0054] As described above, by using the present invention, it is possible to provide a structure in which heat generated by a peripheral driving circuit can be effectively radiated. Also it is possible to provide a structure in which heat generated in the inside of a liquid crystal panel can be effectively radiated. [0054]
    权利要求:
    Claims (108)
    [1" id="US-20010002144-A1-CLM-00001] 1. A device having at least one active matrix panel, said active matrix panel comprising:
    a substrate having an insulating surface;
    an active matrix circuit comprising first thin film transistors formed over said substrate;
    a driving circuit comprising second thin film transistors for driving said active matrix circuit;
    a first interlayer insulating film formed over the first and second thin film transistors;
    an electromagnetic shield pattern formed over said first interlayer insulating film;
    a second interlayer insulating film formed over said first interlayer insulating film and said electromagnetic shield pattern; and
    reflective pixel electrodes formed over said second interlayer insulating film and electrically connected to the first thin film transistors.
    [2" id="US-20010002144-A1-CLM-00002] 2. A device according to
    claim 1 wherein said electromagnetic shield functions so that said reflective pixel electrodes do not interfere with said first thin film transistors.
    [3" id="US-20010002144-A1-CLM-00003] 3. A device according to
    claim 1 wherein said reflective pixel electrodes comprise aluminum.
    [4" id="US-20010002144-A1-CLM-00004] 4. A device according to
    claim 1 wherein said substrate is a glass substrate.
    [5" id="US-20010002144-A1-CLM-00005] 5. A device according to
    claim 1 wherein the first thin film transistors are of an N-channel type.
    [6" id="US-20010002144-A1-CLM-00006] 6. A device according to
    claim 1 wherein each of said first and second thin film transistors is of a top-gate type.
    [7" id="US-20010002144-A1-CLM-00007] 7. A device according to
    claim 1 wherein each of said first and second thin film transistors is of a bottom-gate type.
    [8" id="US-20010002144-A1-CLM-00008] 8. A device according to
    claim 1 wherein said device is a portable information processing terminal, which comprises a main body, an integrated circuit in the main body, said active matrix panel, a camera portion for incorporating a picture image, and an operation switch.
    [9" id="US-20010002144-A1-CLM-00009] 9. A head mount display using the active matrix panel according to
    claim 1 .
    [10" id="US-20010002144-A1-CLM-00010] 10. A device according to
    claim 1 further comprising an antenna wherein said active matrix panel displays a map information received by said antenna from an artificial satellite.
    [11" id="US-20010002144-A1-CLM-00011] 11. A device according to
    claim 1 wherein said device is a portable telephone, which comprises a main body, an antenna, an audio output portion, said active matrix panel, an operation switch, and an audio input portion.
    [12" id="US-20010002144-A1-CLM-00012] 12. A video camera having the active matrix panel according to
    claim 1 .
    [13" id="US-20010002144-A1-CLM-00013] 13. A device according to
    claim 1 wherein said device is a projector having said active matrix panel, a light source, an optical system and a screen.
    [14" id="US-20010002144-A1-CLM-00014] 14. A device having at least one active matrix panel, said active matrix panel comprising:
    a substrate having an insulating surface;
    an active matrix circuit comprising first thin film transistors formed over said substrate;
    a driving circuit comprising second thin film transistors for driving said active matrix circuit;
    a first interlayer insulating film formed over the first and second thin film transistors;
    at least one wiring formed on said first interlayer insulating film and electrically connected to one of source or drain of at least one of said first and second thin film transistors through a contact hole of said first interlayer insulating film;
    a second interlayer insulating film comprising an organic resin formed over said first interlayer insulating film and said wiring;
    an electromagnetic shield pattern formed over said first interlayer insulating film;
    a third interlayer insulating film formed over said first interlayer insulating film and said electromagnetic shield pattern; and
    reflective pixel electrodes formed over said second interlayer insulating film and electrically connected to the first thin film transistors.
    [15" id="US-20010002144-A1-CLM-00015] 15. A device according to
    claim 14 wherein said electromagnetic shield functions so that said reflective pixel electrodes do not interfere with said first thin film transistors and said at least one wiring.
    [16" id="US-20010002144-A1-CLM-00016] 16. A device according to
    claim 14 wherein said reflective pixel electrodes comprise aluminum.
    [17" id="US-20010002144-A1-CLM-00017] 17. A device according to
    claim 14 wherein said substrate is a glass substrate.
    [18" id="US-20010002144-A1-CLM-00018] 18. A device according to
    claim 14 wherein the first thin film transistors are of an N-channel type.
    [19" id="US-20010002144-A1-CLM-00019] 19. A device according to
    claim 14 wherein each of said first and second thin film transistors is of a top-gate type.
    [20" id="US-20010002144-A1-CLM-00020] 20. A device according to
    claim 14 wherein each of said first and second thin film transistors is of a bottom-gate type.
    [21" id="US-20010002144-A1-CLM-00021] 21. A device according to
    claim 14 wherein said device is a portable information processing terminal, which comprises a main body, an integrated circuit in the main body, said active matrix panel, a camera portion for incorporating a picture image, and an operation switch.
    [22" id="US-20010002144-A1-CLM-00022] 22. A head mount display using the active matrix panel according to
    claim 14 .
    [23" id="US-20010002144-A1-CLM-00023] 23. A device according to
    claim 14 further comprising an antenna wherein said active matrix panel displays a map information received by said antenna from an artificial satellite.
    [24" id="US-20010002144-A1-CLM-00024] 24. A device according to
    claim 14 wherein said device is a portable telephone, which comprises a main body, an antenna, an audio output portion, said active matrix panel, an operation switch, and an audio input portion.
    [25" id="US-20010002144-A1-CLM-00025] 25. A video camera having the active matrix panel according to
    claim 14 .
    [26" id="US-20010002144-A1-CLM-00026] 26. A device according to
    claim 14 wherein said device is a projector having said active matrix panel, a light source, an optical system and a screen.
    [27" id="US-20010002144-A1-CLM-00027] 27. A device according to
    claim 14 wherein said second interlayer insulating film comprises a material selected from the group consisting of polyimide, polyimide amide, polyamide, acryl, and epoxy.
    [28" id="US-20010002144-A1-CLM-00028] 28. A device according to
    claim 14 wherein said wiring comprises a pair of first layers comprising titanium and a second layer comprising aluminum interposed therebetween.
    [29" id="US-20010002144-A1-CLM-00029] 29. A device having at least one active matrix panel, said active matrix panel comprising:
    a substrate having an insulating surface;
    an active matrix circuit comprising first thin film transistors formed over said substrate;
    a driving circuit comprising second thin film transistors for driving said active matrix circuit;
    a first interlayer insulating film formed over the first and second thin film transistors;
    at least one wiring formed on said first interlayer insulating film and electrically connected to one of source or drain of at least one of said first and second thin film transistors through a contact hole of said first interlayer insulating film;
    a second interlayer insulating film formed over said first interlayer insulating film and said wiring;
    an electromagnetic shield pattern formed over said first interlayer insulating film;
    a third interlayer insulating film comprising an organic resin formed over said second interlayer insulating film and said electromagnetic shield pattern; and
    reflective pixel electrodes formed over said third interlayer insulating film and electrically connected to the first thin film transistors.
    [30" id="US-20010002144-A1-CLM-00030] 30. A device according to
    claim 29 wherein said electromagnetic shield functions so that said reflective pixel electrodes do not interfere with said first thin film transistors and said at least one wiring.
    [31" id="US-20010002144-A1-CLM-00031] 31. A device according to
    claim 29 wherein said first interlayer insulating film comprises silicon oxide.
    [32" id="US-20010002144-A1-CLM-00032] 32. A device according to
    claim 29 wherein said reflective pixel electrodes comprise aluminum.
    [33" id="US-20010002144-A1-CLM-00033] 33. A device according to
    claim 29 wherein said substrate is a glass substrate.
    [34" id="US-20010002144-A1-CLM-00034] 34. A device according to
    claim 29 wherein the first thin film transistors are of an N-channel type.
    [35" id="US-20010002144-A1-CLM-00035] 35. A device according to
    claim 29 wherein each of said first and second thin film transistors is of a top-gate type.
    [36" id="US-20010002144-A1-CLM-00036] 36. A device according to
    claim 29 wherein each of said first and second thin film transistors is of a bottom-gate type.
    [37" id="US-20010002144-A1-CLM-00037] 37. A device according to
    claim 29 wherein said device is a portable information processing terminal, which comprises a main body, an integrated circuit in the main body, said active matrix panel, a camera portion for incorporating a picture image, and an operation switch.
    [38" id="US-20010002144-A1-CLM-00038] 38. A head mount display using the active matrix panel according to
    claim 29 .
    [39" id="US-20010002144-A1-CLM-00039] 39. A device according to
    claim 29 further comprising an antenna wherein said active matrix panel displays a map information received by said antenna from an artificial satellite.
    [40" id="US-20010002144-A1-CLM-00040] 40. A device according to
    claim 29 wherein said device is a portable telephone, which comprises a main body, an antenna, an audio output portion, said active matrix panel, an operation switch, and an audio input portion.
    [41" id="US-20010002144-A1-CLM-00041] 41. A video camera having the active matrix panel according to
    claim 29 .
    [42" id="US-20010002144-A1-CLM-00042] 42. A device according to
    claim 29 wherein said device is a projector having said active matrix panel, a light source, an optical system and a screen.
    [43" id="US-20010002144-A1-CLM-00043] 43. A device according to
    claim 29 wherein said second interlayer insulating film comprises a material selected from the group consisting of polyimide, polyimide amide, polyamide, acryl, and epoxy.
    [44" id="US-20010002144-A1-CLM-00044] 44. A device according to
    claim 29 wherein said wiring comprises a pair of first layers comprising titanium and a second layer comprising aluminum interposed therebetween.
    [45" id="US-20010002144-A1-CLM-00045] 45. A device according to
    claim 29 wherein said third interlayer insulating film comprises polyimide.
    [46" id="US-20010002144-A1-CLM-00046] 46. A device having at least one active matrix panel, said active matrix panel comprising:
    a substrate having an insulating surface;
    an active matrix circuit comprising first thin film transistors formed over said substrate;
    a driving circuit comprising second thin film transistors for driving said active matrix circuit;
    a first interlayer insulating film formed over the first and second thin film transistors;
    at least one drain electrode formed on said first interlayer insulating film and electrically connected to drain of at least one of said first thin film transistors through a contact hole of said first interlayer insulating film;
    a second interlayer insulating film formed over said first interlayer insulating film and said wiring;
    an electromagnetic shield pattern formed over said first interlayer insulating film;
    a third interlayer insulating film comprising an organic resin formed over said first interlayer insulating film and said electromagnetic shield pattern; and
    at least one reflective pixel electrode formed over said third interlayer insulating film and electrically connected to said drain electrode through a hole opened through said third interlayer insulating film, said electromagnetic shield pattern and said second interlayer insulating film,
    wherein said third interlayer insulating film extends into a gap between said reflective pixel electrode and an inner edge of the opening of said electromagnetic shield pattern.
    [47" id="US-20010002144-A1-CLM-00047] 47. A device according to
    claim 46 wherein said first interlayer insulating film comprises silicon oxide.
    [48" id="US-20010002144-A1-CLM-00048] 48. A device according to
    claim 46 wherein said pixel electrodes comprise aluminum.
    [49" id="US-20010002144-A1-CLM-00049] 49. A device according to
    claim 46 wherein said substrate is a glass substrate.
    [50" id="US-20010002144-A1-CLM-00050] 50. A device according to
    claim 46 wherein the first thin film transistors are of an N-channel type.
    [51" id="US-20010002144-A1-CLM-00051] 51. A device according to
    claim 46 wherein each of said first and second thin film transistors is of a top-gate type.
    [52" id="US-20010002144-A1-CLM-00052] 52. A device according to
    claim 46 wherein each of said first and second thin film transistors is of a bottom-gate type.
    [53" id="US-20010002144-A1-CLM-00053] 53. A device according to
    claim 46 wherein said device is a portable information processing terminal, which comprises a main body, an integrated circuit in the main body, said active matrix panel, a camera portion for incorporating a picture image, and an operation switch.
    [54" id="US-20010002144-A1-CLM-00054] 54. A head mount display using the active matrix panel according to
    claim 46 .
    [55" id="US-20010002144-A1-CLM-00055] 55. A device according to
    claim 46 further comprising an antenna wherein said active matrix panel displays a map information received by said antenna from an artificial satellite.
    [56" id="US-20010002144-A1-CLM-00056] 56. A device according to
    claim 46 wherein said device is a portable telephone, which comprises a main body, an antenna, an audio output portion, said active matrix panel, an operation switch, and an audio input portion.
    [57" id="US-20010002144-A1-CLM-00057] 57. A video camera having the active matrix panel according to
    claim 46 .
    [58" id="US-20010002144-A1-CLM-00058] 58. A device according to
    claim 46 wherein said device is a projector having said active matrix panel, a light source, an optical system and a screen.
    [59" id="US-20010002144-A1-CLM-00059] 59. A device according to
    claim 46 wherein said second interlayer insulating film comprises a material selected from the group consisting of polyimide, polyimide amide, polyamide, acryl, and epoxy.
    [60" id="US-20010002144-A1-CLM-00060] 60. A device according to
    claim 46 wherein said drain electrode comprises a pair of first layers comprising titanium and a second layer comprising aluminum interposed therebetween.
    [61" id="US-20010002144-A1-CLM-00061] 61. A device according to
    claim 46 wherein said third interlayer insulating film comprises polyimide.
    [62" id="US-20010002144-A1-CLM-00062] 62. A device having at least one active matrix panel, said active matrix panel comprising:
    a substrate having an insulating surface;
    an active matrix circuit comprising first thin film transistors formed over said substrate;
    a driving circuit comprising second thin film transistors for driving said active matrix circuit;
    a first interlayer insulating film formed over the first and second thin film transistors;
    at least one drain electrode formed on said first interlayer insulating film and electrically connected to a drain of at least one of said first thin film transistors through a contact hole of said first interlayer insulating film;
    a second interlayer insulating film comprising an organic resin formed over said first interlayer insulating film and said drain electrode;
    at least one pixel electrode formed over said second interlayer insulating film and electrically connected to one of the first thin film transistors via said drain electrode,
    wherein an insulating layer comprising silicon nitride is formed between said second interlayer insulating film and each of said first interlayer insulating film and said at least one drain electrode.
    [63" id="US-20010002144-A1-CLM-00063] 63. A device according to
    claim 62 wherein said first interlayer insulating film comprises silicon oxide.
    [64" id="US-20010002144-A1-CLM-00064] 64. A device according to
    claim 62 wherein said pixel electrodes comprises aluminum.
    [65" id="US-20010002144-A1-CLM-00065] 65. A device according to
    claim 62 wherein said substrate is a glass substrate.
    [66" id="US-20010002144-A1-CLM-00066] 66. A device according to
    claim 62 wherein each of said first and second thin film transistors is of a top-gate type.
    [67" id="US-20010002144-A1-CLM-00067] 67. A device according to
    claim 62 wherein each of said first and second thin film transistors is of a bottom-gate type.
    [68" id="US-20010002144-A1-CLM-00068] 68. A device according to
    claim 62 wherein said device is a portable information processing terminal, which comprises a main body, an integrated circuit in the main body, said active matrix panel, a camera portion for incorporating a picture image, and an operation switch.
    [69" id="US-20010002144-A1-CLM-00069] 69. A head mount display using the active matrix panel according to
    claim 62 .
    [70" id="US-20010002144-A1-CLM-00070] 70. A device according to
    claim 62 further comprising an antenna wherein said active matrix panel displays a map information received by said antenna from an artificial satellite.
    [71" id="US-20010002144-A1-CLM-00071] 71. A device according to
    claim 62 wherein said device is a portable telephone, which comprises a main body, an antenna, an audio output portion, said active matrix panel, an operation switch, and an audio input portion.
    [72" id="US-20010002144-A1-CLM-00072] 72. A video camera having the active matrix panel according to
    claim 62 .
    [73" id="US-20010002144-A1-CLM-00073] 73. A device according to
    claim 62 wherein said device is a projector having said active matrix panel, a light source, an optical system and a screen.
    [74" id="US-20010002144-A1-CLM-00074] 74. A device according to
    claim 62 wherein said second interlayer insulating film comprises a material selected from the group consisting of polyimide, polyimide amide, polyamide, acryl, and epoxy.
    [75" id="US-20010002144-A1-CLM-00075] 75. A device according to
    claim 62 wherein said drain electrode comprises a pair of first layers comprising titanium and a second layer comprising aluminum interposed therebetween.
    [76" id="US-20010002144-A1-CLM-00076] 76. A device having at least one active matrix panel, said active matrix panel comprising:
    a substrate having an insulating surface;
    an active matrix circuit comprising first thin film transistors formed over said substrate;
    a driving circuit comprising second thin film transistors for driving said active matrix circuit;
    a first interlayer insulating film formed over the first and second thin film transistors;
    at least one wiring formed on said first interlayer insulating film and electrically connected to one of source or drain of at least one of said first and second thin film transistors through a contact hole of said first interlayer insulating film;
    a second interlayer insulating film comprising an organic resin formed over said first interlayer insulating film and said wiring;
    at least one pixel electrode formed over said second interlayer insulating film and electrically connected to one of the first thin film transistors,
    wherein an insulating layer comprising silicon nitride is formed between said second interlayer insulating film and each of said first interlayer insulating film and said at least one wiring.
    [77" id="US-20010002144-A1-CLM-00077] 77. A device according to
    claim 76 wherein said first interlayer insulating film comprises silicon oxide.
    [78" id="US-20010002144-A1-CLM-00078] 78. A device according to
    claim 76 wherein said pixel electrodes comprise aluminum.
    [79" id="US-20010002144-A1-CLM-00079] 79. A device according to
    claim 76 wherein said substrate is a glass substrate.
    [80" id="US-20010002144-A1-CLM-00080] 80. A device according to
    claim 76 wherein each of said first and second thin film transistors is of a top-gate type.
    [81" id="US-20010002144-A1-CLM-00081] 81. A device according to
    claim 76 wherein each of said first and second thin film transistors is of a bottom-gate type.
    [82" id="US-20010002144-A1-CLM-00082] 82. A device according to
    claim 76 wherein said device is a portable information processing terminal, which comprises a main body, an integrated circuit in the main body, said active matrix panel, a camera portion for incorporating a picture image, and an operation switch.
    [83" id="US-20010002144-A1-CLM-00083] 83. A head mount display using the active matrix panel according to
    claim 76 .
    [84" id="US-20010002144-A1-CLM-00084] 84. A device according to
    claim 76 further comprising an antenna wherein said active matrix panel displays a map information received by said antenna from an artificial satellite.
    [85" id="US-20010002144-A1-CLM-00085] 85. A device according to
    claim 76 wherein said device is a portable telephone, which comprises a main body, an antenna, an audio output portion, said active matrix panel, an operation switch, and an audio input portion.
    [86" id="US-20010002144-A1-CLM-00086] 86. A video camera having the active matrix panel according to
    claim 76 .
    [87" id="US-20010002144-A1-CLM-00087] 87. A device according to
    claim 76 wherein said device is a projector having said active matrix panel, a light source, an optical system and a screen.
    [88" id="US-20010002144-A1-CLM-00088] 88. A device according to
    claim 76 wherein said second interlayer insulating film comprises a material selected from the group consisting of polyimide, polyimide amide, polyamide, acryl, and epoxy.
    [89" id="US-20010002144-A1-CLM-00089] 89. A device according to
    claim 76 wherein said wiring comprises a pair of first layers comprising titanium and a second layer comprising aluminum interposed therebetween.
    [90" id="US-20010002144-A1-CLM-00090] 90. A device having at least one active matrix panel, said active matrix panel comprising:
    a substrate having an insulating surface;
    an active matrix circuit comprising first thin film transistors formed over said substrate;
    a driving circuit comprising second thin film transistors for driving said active matrix circuit;
    a first interlayer insulating film formed over the first and second thin film transistors;
    at least one first electrode formed on said first interlayer insulating film and electrically connected to said first thin film transistors;
    at least one second electrode formed on said first interlayer insulating film and electrically connected to said second thin film transistors;
    a second interlayer insulating film comprising an organic resin formed over said first interlayer insulating film and said wiring;
    at least one pixel electrode formed over said second interlayer insulating film and electrically connected to one of the first thin film transistors,
    wherein an insulating layer comprising silicon nitride is formed on said first interlayer insulating film, said at least one first electrode and said at least second electrode.
    [91" id="US-20010002144-A1-CLM-00091] 91. A device according to
    claim 90 wherein said first interlayer insulating film comprises silicon oxide.
    [92" id="US-20010002144-A1-CLM-00092] 92. A device according to
    claim 90 wherein said device is a portable information processing terminal, which comprises a main body, an integrated circuit in the main body, said active matrix panel, a camera portion for incorporating a picture image, and an operation switch.
    [93" id="US-20010002144-A1-CLM-00093] 93. A head mount display using the active matrix panel according to
    claim 90 .
    [94" id="US-20010002144-A1-CLM-00094] 94. A device according to
    claim 90 further comprising an antenna wherein said active matrix panel displays a map information received by said antenna from an artificial satellite.
    [95" id="US-20010002144-A1-CLM-00095] 95. A device according to
    claim 90 wherein said device is a portable telephone, which comprises a main body, an antenna, an audio output portion, said active matrix panel, an operation switch, and an audio input portion.
    [96" id="US-20010002144-A1-CLM-00096] 96. A video camera having the active matrix panel according to
    claim 90 .
    [97" id="US-20010002144-A1-CLM-00097] 97. A device according to
    claim 90 wherein said device is a projector having said active matrix panel, a light source, an optical system and a screen.
    [98" id="US-20010002144-A1-CLM-00098] 98. A device according to
    claim 90 wherein said second interlayer insulating film comprises a material selected from the group consisting of polyimide, polyimide amide, polyamide, acryl, and epoxy.
    [99" id="US-20010002144-A1-CLM-00099] 99. A device having at least one active matrix panel, said active matrix panel comprising:
    a substrate having an insulating surface;
    an active matrix circuit comprising first thin film transistors formed over said substrate;
    a driving circuit comprising second thin film transistors for driving said active matrix circuit;
    a first interlayer insulating film formed over the first and second thin film transistors;
    at least one first electrode formed on said first interlayer insulating film and electrically connected to said first thin film transistors;
    at least one second electrode formed on said first interlayer insulating film and electrically connected to said second thin film transistors;
    a second interlayer insulating film comprising an organic resin formed over said first interlayer insulating film and said wiring;
    an electromagnetic shield pattern formed on said second interlayer insulating film;
    a third interlayer insulating film formed over said second interlayer insulating film and said electromagnetic shield pattern; and
    at least one pixel electrode formed over said third interlayer insulating film and electrically connected to one of the first thin film transistors,
    wherein an insulating layer comprising silicon nitride is formed on said first interlayer insulating film, said at least one first electrode and said at least second electrode.
    [100" id="US-20010002144-A1-CLM-00100] 100. A device according to
    claim 99 wherein said first interlayer insulating film comprises silicon oxide.
    [101" id="US-20010002144-A1-CLM-00101] 101. A device according to
    claim 99 wherein said device is a portable information processing terminal, which comprises a main body, an integrated circuit in the main body, said active matrix panel, a camera portion for incorporating a picture image, and an operation switch.
    [102" id="US-20010002144-A1-CLM-00102] 102. A head mount display using the active matrix panel according to
    claim 99 .
    [103" id="US-20010002144-A1-CLM-00103] 103. A device according to
    claim 99 further comprising an antenna wherein said active matrix panel displays a map information received by said antenna from an artificial satellite.
    [104" id="US-20010002144-A1-CLM-00104] 104. A device according to
    claim 99 wherein said device is a portable telephone, which comprises a main body, an antenna, an audio output portion, said active matrix panel, an operation switch, and an audio input portion.
    [105" id="US-20010002144-A1-CLM-00105] 105. A video camera having the active matrix panel according to
    claim 99 .
    [106" id="US-20010002144-A1-CLM-00106] 106. A device according to
    claim 99 wherein said device is a projector having said active matrix panel, a light source, an optical system and a screen.
    [107" id="US-20010002144-A1-CLM-00107] 107. A device having at least one active matrix panel, said active matrix panel comprising:
    a substrate having an insulating surface;
    an active matrix circuit comprising first thin film transistors formed over said substrate;
    a driving circuit comprising second thin film transistors for driving said active matrix circuit;
    a first interlayer insulating film formed over the first and second thin film transistors;
    at least one first electrode formed on said first interlayer insulating film and electrically connected to said first thin film transistors;
    at least one second electrode formed on said first interlayer insulating film and electrically connected to said second thin film transistors;
    an insulating layer formed on said first interlayer insulating film and covering said first electrode and said second electrode wherein said insulating film comprises silicon nitride;
    a capacitor forming electrode formed on said insulating layer comprising silicon nitride to form a capacitor associated with said first thin film transistor;
    a second interlayer insulating film comprising an organic resin formed on said insulating layer comprising silicon nitride and said capacitor forming electrode;
    at least one pixel electrode formed over said second interlayer insulating film and electrically connected to one of the first thin film transistors.
    [108" id="US-20010002144-A1-CLM-00108] 108. A device having at least one active matrix panel, said active matrix panel comprising:
    a substrate having an insulating surface;
    an active matrix circuit comprising first thin film transistors formed over said substrate;
    a driving circuit comprising second thin film transistors for driving said active matrix circuit;
    a first interlayer insulating film formed over the first and second thin film transistors;
    at least one wiring formed on said first interlayer insulating film and electrically connected to at least one of said first and second thin film transistors;
    an insulating layer comprising silicon nitride formed on said first interlayer insulating film and said at least one wiring;
    a second interlayer insulating film comprising an organic resin formed over said first interlayer insulating film and said wiring with said insulating layer interposed therebetween;
    an electromagnetic shield pattern formed on said second interlayer insulating film;
    a third interlayer insulating film comprising an organic resin formed over said second interlayer insulating film and said electromagnetic shield pattern; and
    at least one pixel electrode formed over said third interlayer insulating film and electrically connected to one of the first thin film transistors.
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    2013-01-09| FPAY| Fee payment|Year of fee payment: 8 |
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    2017-09-04| STCH| Information on status: patent discontinuation|Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
    2017-09-26| FP| Lapsed due to failure to pay maintenance fee|Effective date: 20170809 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP9092935A|JPH10268360A|1997-03-26|1997-03-26|Display device|
    JP9-092935||1997-03-26||
    US09/045,697|US6115090A|1997-03-26|1998-03-23|Display device|
    US09/295,397|US6593990B1|1997-03-26|1999-04-21|Display device|
    US09/748,166|US6927826B2|1997-03-26|2000-12-27|Display device|US09/748,166| US6927826B2|1997-03-26|2000-12-27|Display device|
    US11/187,809| US7190428B2|1997-03-26|2005-07-25|Display device|
    US11/648,571| US7436463B2|1997-03-26|2007-01-03|Display device|
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