Active matrix type electro-optical device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 18, 1997
Issued Date -
N/A
app pub date -
Oct 13, 1995
filing date -
Nov 26, 1990
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A grey tone display and a driving method are described. The display comprises a light influencing layer, an electrode pad located adjacent to the layer at one side of the layer in order to define a pixel in the layer, an n-channel field effect transistors connected to the electrode pad at its source terminal, a p-channel field effect transistors connected to the electrode pad at its source terminal, a first control line connected to the drain terminal of the n-channel field effect transistor, a second control line connected to the drain terminal of the p-channel field effect transistor, a third control line connected to the gate terminals of the n-channel field effect transistor and the p-channel field effect transistor, and a control circuit for supplying control signals to the first, second and third control lines. By this configuration, the voltage of the electrode pad can be arbitrarily controlled by adjusting the input level at the gate terminals.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SEMICONDUCTOR ENERGY LABORATORY CO INC | 398 HASE ATSUGI-SHI KANAGAWA-KEN 243-0036 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hiroki, Masaaki | Isehara, JP | 267 | 8801 |
# of filed Patents : 267 Total Citations : 8801 | |||
Mase, Akira | Atsugi, JP | 152 | 7076 |
# of filed Patents : 152 Total Citations : 7076 | |||
Yamazaki, Shunpei | Tokyo, JP | 7534 | 239327 |
# of filed Patents : 7534 Total Citations : 239327 |
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Patent Citation Ranking
- 187 Citation Count
- G02F Class
- 98.40 % this patent is cited more than
- 28 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Jul 14, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jan 30, 2018 | I | Issuance | |
Jan 10, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Nov 30, 2017 | P | Published | |
Aug 16, 2017 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HIRAI, YUKI;SASAKI, DAISUKE;JIMBO, YOSHIHIRO;SIGNING DATES FROM 20170516 TO 20170522;REEL/FRAME:043305/0421 Owner name: FUJIFILM CORPORATION, JAPAN |
Aug 15, 2017 | F | Filing | |
Feb 26, 2015 | PD | Priority Date |

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