JPH01112878A - 画像表示装置のコントラスト調整回路 - Google Patents

画像表示装置のコントラスト調整回路

Info

Publication number
JPH01112878A
JPH01112878A JP6655888A JP6655888A JPH01112878A JP H01112878 A JPH01112878 A JP H01112878A JP 6655888 A JP6655888 A JP 6655888A JP 6655888 A JP6655888 A JP 6655888A JP H01112878 A JPH01112878 A JP H01112878A
Authority
JP
Japan
Prior art keywords
reference potential
video signal
circuit
amplifier
level
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.)
Granted
Application number
JP6655888A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0237158B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Osamu Kameda
修 亀田
Takahiro Fuse
孝弘 布施
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP6655888A priority Critical patent/JPH01112878A/ja
Publication of JPH01112878A publication Critical patent/JPH01112878A/ja
Publication of JPH0237158B2 publication Critical patent/JPH0237158B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Liquid Crystal Display Device Control (AREA)
  • Television Receiver Circuits (AREA)
  • Transforming Electric Information Into Light Information (AREA)
JP6655888A 1988-03-18 1988-03-18 画像表示装置のコントラスト調整回路 Granted JPH01112878A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6655888A JPH01112878A (ja) 1988-03-18 1988-03-18 画像表示装置のコントラスト調整回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6655888A JPH01112878A (ja) 1988-03-18 1988-03-18 画像表示装置のコントラスト調整回路

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP4677482A Division JPS58164390A (ja) 1982-03-24 1982-03-24 画像表示装置のコントラスト調整回路

Publications (2)

Publication Number Publication Date
JPH01112878A true JPH01112878A (ja) 1989-05-01
JPH0237158B2 JPH0237158B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-08-22

Family

ID=13319375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6655888A Granted JPH01112878A (ja) 1988-03-18 1988-03-18 画像表示装置のコントラスト調整回路

Country Status (1)

Country Link
JP (1) JPH01112878A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099330A (en) * 1988-10-28 1992-03-24 Casio Computer Co., Ltd. Contrast control based on mean and deviation values

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133331U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1974-09-04 1976-03-11
JPS5532063A (en) * 1978-08-29 1980-03-06 Suwa Seikosha Kk Liquid crystal display

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133331U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1974-09-04 1976-03-11
JPS5532063A (en) * 1978-08-29 1980-03-06 Suwa Seikosha Kk Liquid crystal display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099330A (en) * 1988-10-28 1992-03-24 Casio Computer Co., Ltd. Contrast control based on mean and deviation values

Also Published As

Publication number Publication date
JPH0237158B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-08-22

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