Keyboard Using a Contact Luminescent Element

专利摘要:
PURPOSE: A keyboard is provided to use an electric change occurring at contact with a contact luminescence device so that it can make a portable computer thinner. CONSTITUTION: A keyboard comprises a contact luminescence device array(21), an inverter(22), an AD(Analog to Digital) converter(23), and a microprocessor(24). The contact luminescence device array(21) receives an AC electric signal from a plurality of lines(1-n), and emits light the when a contact luminescence device gets contacted. The inverter(22) converts DC electric signal into an AC electric signal, and transmits the DC electric signal via the lines(1-n). The AD converter(23) receives the AC electric signal from only a line where an electric signal wave type gets changed, and converts it into the DC electric signal. The microprocessor(24) receives the DC electric signal from the AD converter(23), assure the selected contact luminescence device(21a), and generates a key signal corresponding to the assured contact luminescence device(21a).
公开号:KR20000060286A
申请号:KR1019990008467
申请日:1999-03-13
公开日:2000-10-16
发明作者:유영기；진기수；지승환；안상필
申请人:정문술；미래산업 주식회사；
IPC主号:

专利说明:

Keyboard Using a Contact Luminescent Element
[12] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard using a touch light emitting device, and more particularly, to a keyboard using a touch light emitting device in which a keyboard is configured by using an electrical change generated when the touch light emitting device contacts.
[13] Keyboards are used as input devices in personal computers. Personal computers have a desktop or notebook type and use the keyboards shown in FIGS. 1 and 2 as input devices for these computers.
[14] 1 is a perspective view showing the configuration of a conventional keyboard, Figure 2 is a cross-sectional view showing the configuration of the key shown in FIG. As shown, the conventional keyboard 10 is equipped with a key module 1 on the outer case 11, and one key signal is generated by pressing the key module 1. The generated key signal is transmitted to a computer (not shown) to process the input key signal. In order to generate a key signal, the key module 1 is divided into a key 1a, a guide 1b, an elastic spring 1c, an upper pattern plate 1d, an insulating plate 1e, and a lower pattern plate 1f. It is composed.
[15] The key 1a is moved up and down along the guide 1b, and the elastic spring 1c is mounted to return after the user presses the key 1a. When the key 1a is pressed, it is electrically connected to the contact a formed on the upper pattern plate 1d and the contact b formed on the lower pattern plate 1f, thereby generating one key signal. The insulating plate 1e is inserted and mounted between the contacts a and b, and the contact a and b are not electrically connected when the key 1a is not selected by the insulating plate 1e.
[16] As such, as the key module 1 is used to generate one key signal, the thickness m of the keyboard 10 is increased. Therefore, when the keyboard 10 is mounted on the notebook, that is, the portable computer, the external appearance of the portable computer becomes large due to the thickness of the keyboard 10, which is inconvenient to carry.
[17] SUMMARY OF THE INVENTION An object of the present invention is to provide a keyboard using a touch light emitting device to enable an ultra-thin to reduce the thickness of a portable computer.
[1] 1 is a perspective view showing the configuration of a conventional keyboard;
[2] 2 is a cross-sectional view showing the configuration of the key shown in FIG.
[3] 3 is a block diagram showing a circuit configuration of a keyboard using a touch light emitting device according to the present invention;
[4] 4 is a plan view of the array of the contact light emitting device shown in FIG.
[5] 5 is a cross-sectional view of the touch light emitting device shown in FIG. 3.
[6] <Description of the code | symbol about the principal part of drawing>
[7] 1: Key Module 10: Keyboard
[8] 21 contact array array 22 Inverter
[9] 23: AD Converter 24: Micom
[10] 31: transparent insulating layer 32: transparent conductive layer
[11] 33: light emitting layer
[18] In order to achieve the above object, the present invention provides a contact light emitting device array that receives alternating current output from a plurality of transmission lines and emits light upon contact, an inverter that receives a direct current and converts it into alternating current and outputs through a plurality of transmission lines; Receives an AC converter that receives AC from a line that has a waveform change during AC output through multiple transmission lines, converts it into an analog to digital signal, and receives a signal converted into a digital signal output from the AD converter. The present invention provides a keyboard using a touch light emitting device, wherein the touch light emitting device is composed of a microcomputer that checks the touch light emitting device selected from the touch light emitting device array and generates and outputs a key signal of the identified touch light emitting device.
[19] As described above, the present invention can make the thickness of the keyboard extremely thin by configuring the keyboard using the touch light emitting device, and when the keyboard is applied to the portable computer, the thickness of the portable computer can be made thin.
[20] (Example)
[21] When described with reference to the accompanying drawings a preferred embodiment of the present invention as follows.
[22] 3 is a block diagram showing a circuit configuration of a keyboard using a touch light emitting device according to the present invention, Figure 4 is a plan view of the array of the touch light emitting device shown in FIG.
[23] As shown, the keyboard using the touch light emitting device according to the present invention receives an alternating current (AC) output from a plurality of transmission lines (1 to n) and the touch light emitting device array (array) 21 that emits light upon contact with; Inverter 22 which receives a direct current (DC) and converts it into alternating current (AC) and outputs it through a plurality of transmission lines (1 to n), and is output through a plurality of transmission lines (1 to n) An AC (analog to digital) converter 23 which receives an AC of a line in which a waveform change occurs in AC, is converted from an analog to a digital signal, and is output from the AD converter 23. The microcomputer 24 receives the signal converted into a digital signal, checks the selected touch light emitting device 21a in the touch light emitting device array 21, and generates and outputs a key signal of the identified touch light emitting device 21a. .
[24] Referring to the configuration of the present invention in more detail as follows.
[25] In the touch light emitting device array 21 of the present invention, the touch light emitting device 21a includes a transparent insulating layer 31, a transparent conductive layer 32, and a light emitting layer 33 as shown in FIG. 5. The transparent conductive layer 32 is formed on the transparent insulating layer 31 to receive alternating current (AC), and the light emitting layer 33 is formed on the transparent conductive layer 32. The light emitting layer 33 is formed of a light emitting body such as ZnS, and when an alternating current (AC) is applied to the transparent electrode layer 32, an alternating electric field is formed when a user's finger contacts the surface of the light emitting layer 33. It will emit light.
[26] The touch light emitting device array 21 illustrated in FIG. 4 is formed by arranging the touch light emitting devices 21a that emit light when a user touches the finger. As shown in FIG. 4, the touch light emitting device array 21 is arranged such that the plurality of touch light emitting devices 21a are electrically connected to the plurality of lines 1 to n, respectively. The number of the touch light emitting elements 21a arranged in the touch light emitting element array 21 is formed by arranging as many as the number required by the keyboard.
[27] The inverter 22 supplies alternating current through the plurality of transmission lines 1 to n to the touch light emitting element array 21 formed by arranging a plurality of touch light emitting elements 21a. The inverter 22 receives a direct current (DC) from the outside and converts it into alternating current (AC), and the converted alternating current (AC) is supplied to the touch light emitting element array 21 through a plurality of transmission lines 1 to n. .
[28] In addition to the transmission lines 1 to n for transmitting alternating current from the inverter 22, transmission lines 1 to n that are electrically different from each transmission line 1 to n are connected. The AC converter 23 receives the alternating current transmitted from the inverter 22 to the contact light emitting element array 21 via the transmission lines 1 to n. The AD converter 23 converts an alternating current transmitted to the touch light emitting element array 21 into an analog signal to a digital signal and outputs the converted signal.
[29] The digital signal output through the AD converter 23 is received by the microcomputer 24. The microcomputer 24 searches the digital signal output through the transmission lines 1 to n of the AD converter 23 to check whether there is a transmission line in which the waveform is deformed. When a digital signal having a modified waveform is received through the transmission lines 1 to n of the AD converter 23 received by the microcomputer 24, it is confirmed that the transmission line on which the signal is received is the number line to generate a key signal. do.
[30] That is, the first touch light emitting element 21a is selected in the touch light emitting element array 21, and thus AC is outputted to the first transmission line 1 among the transmission lines 1 to n of the inverter 22. ) Waveform is transformed. The alternating waveform of alternating current is converted into a digital signal by the AD converter 23 and then received by the microcomputer 24.
[31] The microcomputer 24 retrieves the received digital signal and generates a key signal accordingly when a deformation of the AC waveform generated in the first transmission line 1 of the line is confirmed. The generated key signal is a scan signal, which is encoded and transmitted to a computer.
[32] Thus, by arranging the keyboard by arranging the touch light emitting elements 21a, the thickness of the keyboard can be made extremely thin due to the touch light emitting elements 21a which can be manufactured in an ultra-thin shape.
[33] As described above, the present invention can make the thickness of the keyboard extremely thin by configuring the keyboard using the touch light emitting device, and when the keyboard is applied to the portable computer, the thickness of the portable computer can be made thin. Provide effect.

权利要求:
Claims (2)
[1" claim-type="Currently amended] In the input device for generating a key signal and input to the computer,
A touch light emitting device array which receives alternating currents output from a plurality of transmission lines and emits light upon contact;
An inverter converting direct current into alternating current and outputting the same through a plurality of transmission lines;
An analog-to-digital (AD) converter for receiving an alternating current of a line in which a waveform change among alternating currents output through a plurality of transmission lines is received from the inverter and converting an analog signal into a digital signal and outputting the analog signal; And
And a microcomputer for receiving the signal converted into the digital signal outputted by the AD converter, checking the selected touch light emitting device in the touch light emitting device array, and generating and outputting a key signal of the identified touch light emitting device. Keyboard using device.
[2" claim-type="Currently amended] The method of claim 1,
The touch light emitting device of the touch light emitting device array may include a transparent insulating layer;
A transparent conductive layer formed on the transparent insulating layer and receiving alternating current; And
And a light emitting layer formed on the transparent conductive layer to form an alternating electric field by the received alternating current when selected, and emitting light by the alternating electric field.

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同族专利:

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公开号 | 公开日

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KR100337662B1|2002-05-23|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
1999-03-13|Application filed by 정문술, 미래산업 주식회사

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1999-03-13|Priority to KR1019990008467A

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2000-10-16|Publication of KR20000060286A

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2002-05-23|Application granted

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2002-05-23|Publication of KR100337662B1

优先权:

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申请号 | 申请日 | 专利标题

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KR1019990008467A|KR100337662B1|1999-03-13|1999-03-13|Keyboard Using a Contact Luminescent Element|