JPS6432776A - Liquid crystal panel driving signal generating circuit - Google Patents

Liquid crystal panel driving signal generating circuit

Info

Publication number
JPS6432776A
JPS6432776A JP18940287A JP18940287A JPS6432776A JP S6432776 A JPS6432776 A JP S6432776A JP 18940287 A JP18940287 A JP 18940287A JP 18940287 A JP18940287 A JP 18940287A JP S6432776 A JPS6432776 A JP S6432776A
Authority
JP
Japan
Prior art keywords
output
reference voltage
video signal
pin
liquid crystal
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
JP18940287A
Other languages
Japanese (ja)
Inventor
Akihiro Iida
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
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 filed Critical Toshiba Corp
Priority to JP18940287A priority Critical patent/JPS6432776A/en
Publication of JPS6432776A publication Critical patent/JPS6432776A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To apply to a liquid crystal panel with a single IC and different driving systems by providing a polarity switching circuit on the input side of an output amplifier to amplify a driving signal (a video signal) and connecting a reference voltage generating circuit arbitrarily switchable to the constant reference voltage or the alternating reference voltage of an output. CONSTITUTION:The video signal is supplied through a polarity switching circuit consisting of an input part 30, an input amplifier 31, and transistors Q11-Q17 to an output amplifier 32. The polarity switching circuit derives a reverse video signal for every one field. The output video signal (the liquid crystal panel driving signal) of the output amplifier 32 is derived to an output pin P31. Here, the reference potential of the video signal appeared at the pin P31 can be arbitrarily set to a constant reference potential or an alternating reference potential. That is, the output voltage of the reference voltage generating circuit consisting of transistors Q21-Q30 is given through a load resistance R10 to the input part of the output amplifier 32, and when the constant reference voltage is given, a pin P33 is set to open condition, and when the alternating reference voltage is obtained, the alternating voltage synchronized with a timing pulse is given to the pin 33.
JP18940287A 1987-07-29 1987-07-29 Liquid crystal panel driving signal generating circuit Pending JPS6432776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18940287A JPS6432776A (en) 1987-07-29 1987-07-29 Liquid crystal panel driving signal generating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18940287A JPS6432776A (en) 1987-07-29 1987-07-29 Liquid crystal panel driving signal generating circuit

Publications (1)

Publication Number Publication Date
JPS6432776A true JPS6432776A (en) 1989-02-02

Family

ID=16240686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18940287A Pending JPS6432776A (en) 1987-07-29 1987-07-29 Liquid crystal panel driving signal generating circuit

Country Status (1)

Country Link
JP (1) JPS6432776A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7150905B2 (en) 1999-07-01 2006-12-19 Sekisui Chemical Co., Ltd. Interlayer for laminated glass and laminated glass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7150905B2 (en) 1999-07-01 2006-12-19 Sekisui Chemical Co., Ltd. Interlayer for laminated glass and laminated glass
US7378142B2 (en) 1999-07-01 2008-05-27 Sekisui Chemical Co., Ltd. Interlayer for laminated glass and laminated glass

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