Claims
- 1. A matrix circuit comprising:
- a plurality of blocks, each of said blocks
- (i) including a plurality of thin-film semiconductor unit elements that are activated in response to the application of a predetermined voltage thereto, and
- (ii) being arranged such that the predetermined voltage can be applied to each of the elements associated with said block simultaneously;
- drive means for supplying said blocks sequentially with the predetermined voltage and driving the predetermined voltage from a first reference voltage source;
- pulse generating means for generating the predetermined voltage as a pulse, the voltage being derived from a second voltage source, said pulse generating means performing the pulse generating operation independent of said drive means; and
- selective means for supplying the pulse to all of said blocks simultaneously when said drive means does not supply the predetermined voltage to said plurality of blocks sequentially, the pulse supplying being performed in cooperation with said drive means and said pulse generating means.
- 2. A matrix circuit according to claim 1, wherein each of said plurality of semiconductor unit elements includes a thin film semiconductor.
- 3. A matrix circuit according to claim 2, wherein said thin film semiconductor is an amorphous silicon hydride.
- 4. A matrix circuit according to claim 2, wherein said thin film semiconductor is photoconductive.
- 5. A matrix circuit according to claim 1, wherein each said unit element comprises a photodiode.
- 6. A matrix circuit according to claim 1, wherein each said unit element comprises a photoconductive photosensor.
- 7. A matrix circuit according to claim 1, wherein each said unit element comprises a field effect transistor.
- 8. A matrix circuit according to claim 1, wherein each said unit element comprises a photoreceptor.
- 9. A photosensor comprising a matrix circuit according to claim 1.
- 10. A liquid crystal display apparatus comprising a matrix circuit according to claim 1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
59-158660 |
Jul 1984 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 07/462,339 filed Jan. 2, 1990, now abandoned, which is a continuation of application Ser. No. 07/284,856 filed Dec. 13, 1988, now abandoned, which is a continuation of application Ser. No. 06/902,087 filed Aug. 27, 1986, now abandoned, which is a continuation of original application Ser. No. 06/757/670 filed on July 22, 1985, now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (6)
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Country |
0113840 |
Jul 1984 |
EPX |
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DEX |
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2508746 |
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FRX |
2134686 |
Aug 1984 |
GBX |
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GBX |
Non-Patent Literature Citations (1)
Entry |
Lynch, R. J., "Solid State Electroluminescent Display and Scanning Apparatus." IBM Technical Disclosure Bulletin, vol. 9, No. 12, May 1967, pp. 1799-1801. |
Continuations (4)
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Number |
Date |
Country |
Parent |
462339 |
Jan 1990 |
|
Parent |
284856 |
Dec 1988 |
|
Parent |
902087 |
Aug 1986 |
|
Parent |
757670 |
Jul 1985 |
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