• 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:
    PURPOSE: A screen filter fixing structure of an image display device is provided to realize the movement of the screen filter caused by the thermal expansion of the screen filter, while fixing the screen filter behind the screen filter not to be exposed to a viewer. CONSTITUTION: A screen filter fixing structure of an image display device includes a frame, a screen filter, fixing supporters, a steel piece supporter, and a coupling element. The screen filter(130) is fixed to a front surface of the frame(110) to focus images. The fixing supporters fix the screen filter at a rear part of the screen filter. The steel piece supporters(150) are coupled to a rear surface of the frame by the coupling elements(149) and hold the fixing supporters movably.
    公开号:KR20040061053A
    申请号:KR1020020086683
    申请日:2002-12-30
    公开日:2004-07-07
    发明作者:김용한
    申请人:엘지전자 주식회사；
    IPC主号:
    专利说明:

    Screen Filter Fixing Structure of Image Projection Machine
    [17] The present invention relates to a screen filter fixing structure of an image display device. In particular, the screen filter fixing structure is made on the back of the screen filter without being exposed to the front, and the image is made to flow by thermal expansion of the screen filter. A screen filter fixing structure of a display device.
    [18] In general, an LCD projection television can be largely divided into a CRT projection and an LCD projection depending on a driving element, but the structure of both is similar.
    [19] In short, CRT projection generates video signals by three Mono Chroma CRTs, whereas LCD projection generates video signals by an optical engine (light system + color system + projection lens system). The other structures and roles are not the same.
    [20] Until now, the penetration rate of CRT projection has been ahead because of price competitiveness, but the market of LCD projection is gradually expanding.
    [21] The image display device as described above will be described in detail with reference to FIG. 1.
    [22] 1 is a side cross-sectional view showing the internal structure of a typical LCD projection television, and as shown in the drawing, the external configuration of a conventional LCD projection television includes a frame 10 forming a front surface and a main body 2 forming a rear surface. It consists of.
    [23] In addition, the image display device includes a light tube assembly 3 for generating strong light to an image formed in an image display unit such as an LCD so that light containing an image signal is generated, and a light tube assembly 3 generated in the light tube assembly 3. And a screen filter 20 which allows an image to be formed by the light reflected from the reflector 4.
    [24] Looking at the schematic driving process according to the above configuration, the image signal generated from the light tube assembly 3 formed on the bottom of the main body 2 is reflected by the reflector 4 to form an image on the screen filter 20 It is to allow viewers to enjoy the image.
    [25] As the spread of such display products increases, the consumer's taste changes from a general TV to a projection television, the mechanical engineering and design aspects of the projection television become more important.
    [26] In particular, while TVs are becoming larger and larger, in terms of design, consumers are demanding simpler designs, and the structure around the large screen is also expected to be simpler.
    [27] However, due to the problem of fixing the screen filter and the frame is still a lot of difficulties to fully meet the design requirements, Figure 2 is a front view showing the screen filter fixing structure of a conventional projection television.
    [28] In the screen filter fixing structure of the conventional projection television as shown in the figure, all four surfaces of the screen filter 20 are covered by the frame 10.
    [29] Such a structure not only makes the user feel frustrated by design, but also the coolness and wideness of the large screen are inferior due to the structure of the outer frame.
    [30] 3 is a front view showing a screen filter fixing structure of another conventional projection television.
    [31] Referring to the screen filter fixing structure of another conventional projection television as shown in the figure, although the screen filter 20 is fixed by the dual lock inside, the aluminum bar 10 'is decisively the upper screen filter. (20) is holding.
    [32] This is more advanced in the conventional screen filter fixing structure in which all four surfaces are covered, but the design still remains due to the presence of the aluminum bar 10 'formed at the top.
    [33] For this reason, it is necessary to fix the structure behind the screen filter 20 so that the fixing structure of the screen filter 20 is not exposed to the outside.
    [34] Figure 4 is an exploded perspective view showing a screen filter fixing structure according to the prior art, Figure 5 is an enlarged cross-sectional view showing a screen filter fixing structure according to the prior art.
    [35] The conventional screen filter fixing structure as shown in the figure is the frame 10, the anti-bending supporter 20 to be installed on the outer four sides of the screen portion 11 to prevent the bending of the frame 10, The screen filter 30 fixed to the front of the frame 10 to form an image, a fixed supporter 40 for fixing the screen filter 30 from the back, and the fixed supporter 40 to the anti-bending supporter It consists of a configuration including a separate coupling member 49 for coupling to the (20).
    [36] The frame 10 is formed of an integral injection structure, the large screen portion 11 is formed in the center, and forms a border groove 13 having a predetermined depth on the outer four sides of the screen portion 11.
    [37] The edge groove 13 has a plurality of fastening holes 15 and a plurality of through holes 17 for fastening the anti-bending supporter 20.
    [38] In addition, the anti-bending supporter 20 is formed of a steel plate having a "c" shaped beam shape, and is formed in a structure capable of withstanding loads such as bending or warping.
    [39] In this case, the bending preventing supporter 20 is provided with a plurality of fastening holes 21 and a plurality of through holes 123 for fastening to the frame 10 through separate fastening members 19.
    [40] In addition, the bending prevention supporter 20 is to be fastened immediately after the injection of the frame 10, for this reason, after the injection of the frame 10, the frame 10 is prevented from warping or twisting by deformation due to shrinkage, etc. This is to obtain the dimensions as designed.
    [41] Figure 6 is a perspective view showing the structure of a fixed supporter according to the prior art.
    [42] The fixed supporter 40 as shown in the figure serves to fix the fixing structure of the screen filter 30 is not exposed to the outside on the back.
    [43] The structure of the fixed supporter 40 includes a protruding fixing part 43 formed on the back side of the adhesive part 41 to form a wide adhesive part 41 for adhering the double-sided tape.
    [44] At this time, on the fixing portion 43 of the fixed supporter 40 is coupled to the receiving groove 45 and the frame 10 to accommodate the head of the fastening member 19 for fastening the anti-bending supporter 20 The coupling hole 47 for the separate coupling member 49 is formed.
    [45] In addition, the screen filter 20 is all made of a synthetic resin material, wherein the light irradiated to the screen filter 20 includes high temperature heat, which causes thermal expansion of the screen filter 20. .
    [46] Such, the thermal expansion of the screen filter 20 does not properly correspond to the bending of the screen will occur, which is a cause of deterioration of the product quality.
    [47] Accordingly, the screen filter fixing structure of the projection television which allows the screen filter 20 to be firmly fixed without being exposed to the outside and to cope with thermal expansion of the screen filter 20 is provided. Proposal above all is urgently needed.
    [48] The present invention has been proposed to solve the above problems, and an object of the present invention is to provide a screen filter fixing structure of an image display device that can be flowed together according to thermal expansion of the screen filter after assembly.
    [1] Figure 1 is a side cross-sectional view showing the internal structure of a typical LCD projection television.
    [2] Figure 2 is a front view showing a screen filter fixing structure of a conventional projection television.
    [3] Figure 3 is a front view showing a screen filter fixing structure of another conventional projection television.
    [4] Figure 4 is an exploded perspective view showing a screen filter fixing structure according to the prior art.
    [5] Figure 5 is an enlarged cross-sectional view showing a screen filter fixing structure according to the prior art.
    [6] Figure 6 is a perspective view showing the structure of the fixed supporter according to the prior art.
    [7] Figure 7 is an exploded perspective view showing a screen filter fixing structure according to the present invention.
    [8] 8 is a perspective view showing the structure of the fixed supporter according to the present invention.
    [9] Figure 9 is an enlarged cross-sectional view showing a screen filter fixing structure according to the present invention.
    [10] * Description of the symbols for the main parts of the drawings *
    [11] 2: body 3: light barrel assembly
    [12] 4: reflector 10: frame
    [13] 20: screen filter 110: frame
    [14] 111: screen portion 113: border groove
    [15] 115: fastening hole 117: through hole
    [16] 119: fastening member
    [49] The screen filter fixing structure of the image display device according to the present invention for achieving the above object is a frame, a screen filter is fixed to the front of the frame to form an image, a fixed supporter for fixing the screen filter on the back; The fixed supporter is characterized in that it comprises a iron supporter which is mounted in a flowable state, and a coupling member for coupling the iron supporter to the frame back.
    [50] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    [51] Figure 7 is an exploded perspective view showing a screen filter fixing structure according to the present invention, Figure 8 is a perspective view showing the structure of the fixing supporter according to the present invention, Figure 9 is an enlarged view showing a screen filter fixing structure according to the present invention.
    [52] As shown in the figure, the screen filter fixing structure of the image display device according to the present invention is the frame 110, the screen filter 130 is fixed to the front of the frame 110 to form an image, and the screen The fixed supporter 140 for fixing the filter 130 on the back, the iron supporter 150 is mounted in a state in which the fixed supporter 140 is movable, and the iron supporter 150 is coupled to the back of the frame 110 It consists of a configuration including a coupling member (149).
    [53] The frame 110 is formed of an integral injection structure, the large screen portion 111 is formed in the center, and forms a border groove 113 having a predetermined depth on the outer four sides of the screen portion 111, A plurality of fixing piece through holes 113a for penetrating the fixing supporter 140 and the fixing piece 143 are formed in the edge groove 113, and the inner side of the edge groove 113 is closer to the screen portion 111. A rubber insertion groove 115 for inserting the rubber material 120 of the cushion material is formed.
    [54] In addition, a plurality of fastening bosses 117 are formed on the inner surface of the frame 110 to fix the iron supporter 150.
    [55] The screen filter 130 is mounted on the front of the frame 110 so that light including an image signal can be irradiated.
    [56] In this case, in order to mount the screen filter 130 to the frame 110, a plurality of fixing supporters 140 are attached to the rear surface of the screen filter 130 by the double-sided tape 131.
    [57] The fixing supporter 140 as shown in FIG. 8 serves to fix the fixing structure of the screen filter 130 at the rear side without being exposed to the outside.
    [58] Looking at the structure of the fixed supporter 140, the adhesive portion 141 for adhering the double-sided tape 131 is widely formed, and is formed of a protruding fixing piece 143 formed on the rear surface of the adhesive portion 141. .
    [59] In this case, a pin mounting hole 143a is formed on the fixing piece 143 of the fixed supporter 140 so that the mounting pin 151 of the iron supporter 150 can be flowed in the mounted state.
    [60] In addition, the iron supporter 150 has a plurality of through-holes 153 to be fixed by using a separate coupling member 149 on the back of the frame 110, a mounting pin for mounting the fixed supporter 140 ( 151 is formed in large numbers.
    [61] Referring to the screen filter assembly process and operation of the image display device according to the present invention having the above configuration as follows.
    [62] First, the fixed supporter 140 is attached to the rear surface of the screen filter 130 using the double-sided tape 131.
    [63] At this time, the fixed supporter 140 is attached to a plurality of drops a suitable distance, which is due to the temperature change, the material of the screen filter 130 and the fixed supporter 140 is thermally expanded and the interference between the fixed supporter 140 Therefore, to prevent the phenomenon that induces deformation of the screen filter 130 or the adhesive portion is dropped.
    [64] The fixed supporter 140 may be configured such that two or more fixing pieces 143 are formed together.
    [65] In addition, it is preferable that the surface of the adhesive part 141 to which the double-sided tape 131 is bonded is subjected to a primer treatment in advance to increase the adhesiveness.
    [66] After the screen filter 130 and the fixing supporter 140 are fixed as described above, the assembly is coupled to the frame 110.
    [67] To this end, the fixing piece 143 of the fixing supporter 140 for fixing the screen filter 130 is positioned to be coupled to each fixing piece through hole 113a of the frame 110.
    [68] At this time, each fixing piece through-hole 113a of the frame 110 is formed to be wider than the thickness of the fixing piece of the fixing supporter 140 to ensure a flow gap.
    [69] In addition, the nonwoven fabric 147 is inserted into the contact portion of the frame 110 and the fixed supporter 140 to reduce the frictional resistance during the flow.
    [70] Each mounting pin 151 of the iron supporter 150 is inserted into the pinched hole 143a formed on the fixing piece 143 penetrating the rear surface of the frame 110.
    [71] And, through the through-hole 153 formed on the iron supporter 150 to be fixed by engaging a separate coupling member 149 and the fastening boss integrally formed on the frame 110.
    [72] The remaining shaving is fixed by using the above-described coupling method. If the coupling structure is followed, the screen filter 130 attached and supported by the fixed supporter 140 may be freely flown even when thermally expanded to prevent deformation due to thermal expansion. It will be able to prevent.
    [73] The present invention allows the fixing structure of the screen filter to be fixed on the back of the screen filter without being exposed to the outside, thereby making it possible to simplify the design, thereby allowing viewers to enjoy the coolness and wideness of a large screen. It has the effect of making you feel enough.
    [74] In addition, by applying a fixed structure capable of moving the screen filter, there is an effect that it is possible to prevent deformation due to thermal expansion.
    [75] In addition, since the front frame for guiding the screen filter is not necessary, the raw material is saved.
    权利要求:
    Claims (9)
    [1" claim-type="Currently amended] A frame;
    A screen filter fixed to the front of the frame to form an image;
    A fixed supporter for fixing the screen filter at a rear surface thereof;
    An iron supporter on which the fixed supporter is mounted in a flowable state;
    And a coupling member for coupling the iron supporter to the rear surface of the frame.
    [2" claim-type="Currently amended] The method of claim 1,
    The frame has a screen portion formed in the center, a border groove having a predetermined depth is formed on the four outer surface of the screen portion, and a plurality of fixing piece through holes for penetrating the fixing piece of the fixing supporter are formed in the border groove, and the border A rubber insertion groove for inserting the rubber is formed around the inner screen portion of the groove, and the screen filter fixing structure of the image display device, wherein a plurality of fastening bosses for fixing the iron supporter are formed around the rear surface of the edge groove. .
    [3" claim-type="Currently amended] The method of claim 1,
    The fixing supporter is an adhesive portion for bonding the double-sided tape is formed, the screen filter fixing structure of the video display device, characterized in that the fixing piece is formed with a pin mounting hole formed on the back of the adhesive portion.
    [4" claim-type="Currently amended] The method of claim 1,
    The iron piece supporter is a screen filter fixing structure of the image display device, characterized in that a plurality of through-holes are formed to be fixed using a separate coupling member on the back of the frame, a plurality of mounting pins for mounting the fixed supporter is formed.
    [5" claim-type="Currently amended] Attaching a fixed supporter to the rear surface of the screen filter using a double-sided tape;
    Positioning the fixing piece of the fixing supporter for fixing the screen filter to each fixing piece through hole of the frame;
    Mounting each mounting pin of the iron supporter in the pin mounting hole of the fixing piece penetrated by the fixing piece through hole;
    And coupling the fastening bosses of the through-holes and the frame formed on the iron supporter by using a separate coupling member.
    [6" claim-type="Currently amended] The method of claim 5,
    Fixing supporters attached to the back of the screen filter is fixed to each other by a suitable distance to the screen filter fixing method, characterized in that attached to a plurality.
    [7" claim-type="Currently amended] The method of claim 5,
    The fixing supporter is a screen filter fixing method of the video display device, characterized in that two or more fixing pieces are formed.
    [8" claim-type="Currently amended] The method of claim 5,
    Each fixing piece through-hole of the frame is formed to be wider than the thickness of the fixing piece of the fixing supporter to ensure a flow gap to secure the screen filter of the image display device.
    [9" claim-type="Currently amended] The method of claim 5,
    The non-woven fabric is inserted between the contact portion of the frame and the fixed supporter to reduce the frictional resistance during the flow screen screen device, characterized in that for reducing the friction.
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    同族专利:
    公开号 | 公开日
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2002-12-30|Application filed by 엘지전자 주식회사
    2002-12-30|Priority to KR10-2002-0086683A
    2004-07-07|Publication of KR20040061053A
    2005-10-04|Application granted
    2005-10-04|Publication of KR100518863B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR10-2002-0086683A|KR100518863B1|2002-12-30|2002-12-30|Screen Filter Fixing Structure of Image Projection Machine|
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