JPS5451500A - Display unit by voltage sensing optical media - Google Patents

Display unit by voltage sensing optical media

Info

Publication number
JPS5451500A
JPS5451500A JP11802377A JP11802377A JPS5451500A JP S5451500 A JPS5451500 A JP S5451500A JP 11802377 A JP11802377 A JP 11802377A JP 11802377 A JP11802377 A JP 11802377A JP S5451500 A JPS5451500 A JP S5451500A
Authority
JP
Japan
Prior art keywords
video signal
fed
voltage
proportional
optical media
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11802377A
Other languages
Japanese (ja)
Inventor
Minoru Sasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11802377A priority Critical patent/JPS5451500A/en
Publication of JPS5451500A publication Critical patent/JPS5451500A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

PURPOSE: To reproduce the video signal accurately and clearly, by increasing the response speed through giving high pulse to the optical media such as liquid crystal and controlling the intermediate tone with the average value of the voltage in proportional to the video signal.
CONSTITUTION: In the matrix display circuit, the video signal sampled is fed to lines 2a, 2b..., and sequential pulses are fed to lines 1a, 1b.... They are held in the memory capacitor Cgaa via the first FET3aa of the unit circuit UCij. On the other hand, a given voltage is fed to the second memory capacitor CLaa through the diode 5aa, and the charge stored is gradually discharged through the second FET 4aa. A voltage is fed to the gate of FET with the capacitor Cgaa at the level of video signal, and since the equivallent resistance is changed in proportion to the signal, the time constant of discharge is proportional to each signal, and the average voltage during the one sampling period is proportional to the video signal, enabling to preform intermediate tone display with the liquid crystal Laa. This is applied to other unit circuits
COPYRIGHT: (C)1979,JPO&Japio
JP11802377A 1977-09-30 1977-09-30 Display unit by voltage sensing optical media Pending JPS5451500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11802377A JPS5451500A (en) 1977-09-30 1977-09-30 Display unit by voltage sensing optical media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11802377A JPS5451500A (en) 1977-09-30 1977-09-30 Display unit by voltage sensing optical media

Publications (1)

Publication Number Publication Date
JPS5451500A true JPS5451500A (en) 1979-04-23

Family

ID=14726147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11802377A Pending JPS5451500A (en) 1977-09-30 1977-09-30 Display unit by voltage sensing optical media

Country Status (1)

Country Link
JP (1) JPS5451500A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5659291A (en) * 1979-10-19 1981-05-22 Matsushita Electric Ind Co Ltd Liquid crystal display unit
US5194974A (en) * 1989-08-21 1993-03-16 Sharp Kabushiki Kaisha Non-flicker liquid crystal display with capacitive charge storage
US7362304B2 (en) 1999-07-23 2008-04-22 Nec Corporation Liquid crystal display device and method for driving the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5659291A (en) * 1979-10-19 1981-05-22 Matsushita Electric Ind Co Ltd Liquid crystal display unit
US5194974A (en) * 1989-08-21 1993-03-16 Sharp Kabushiki Kaisha Non-flicker liquid crystal display with capacitive charge storage
US7362304B2 (en) 1999-07-23 2008-04-22 Nec Corporation Liquid crystal display device and method for driving the same
US7564443B2 (en) 1999-07-23 2009-07-21 Nec Corporation Liquid crystal display device and method for driving the same

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