JPS5528671A - Liquid crystal display unit - Google Patents

Liquid crystal display unit

Info

Publication number
JPS5528671A
JPS5528671A JP10258078A JP10258078A JPS5528671A JP S5528671 A JPS5528671 A JP S5528671A JP 10258078 A JP10258078 A JP 10258078A JP 10258078 A JP10258078 A JP 10258078A JP S5528671 A JPS5528671 A JP S5528671A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
display
memory circuit
share
information
time
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
JP10258078A
Inventor
Minoru Hosokawa
Katsuyuki Ikeda
Satoru Yazawa
Original Assignee
Seiko Epson 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

Links

Abstract

PURPOSE: To display complicated display pattern with good contrast by means of time sharting driven, by storing the information for one screen's share in the memory circuit and by making independent the drive speed and sequence of the liquid crysral display body from the speed of the video signal fed.
CONSTITUTION: The column electrodes 412-1 to 412n and 412-1' to 411n' of the liquid crystal display unit are separated up and down and the row electrodes 4111 to 411m and 411-n' to 411-m' are constituted so that they can be connected each other and selectable at the same time. Further, the video signal outputted from the video detection circuit 401 is AD-converted with the AD converter 402 to store the display data for one scanning line's share in the auxiliary memory circuit 403, and the multiplexers 406 and 408 are controlled so that the timing of readout and write-in of the main memory circuit 407 is not duplicated, to store the information for one screen's share in the main memory circuit 407. Further, the information stored is fed to the column drivers 409 and 409' and to the row driver 410 under the control of the readout control circuit 413 so that complicated display pattern is time-shared, to display it with good contrast.
COPYRIGHT: (C)1980,JPO&Japio
JP10258078A 1978-08-23 1978-08-23 Liquid crystal display unit Pending JPS5528671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10258078A JPS5528671A (en) 1978-08-23 1978-08-23 Liquid crystal display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10258078A JPS5528671A (en) 1978-08-23 1978-08-23 Liquid crystal display unit

Publications (1)

Publication Number Publication Date
JPS5528671A true true JPS5528671A (en) 1980-02-29

Family

ID=14331156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10258078A Pending JPS5528671A (en) 1978-08-23 1978-08-23 Liquid crystal display unit

Country Status (1)

Country Link
JP (1) JPS5528671A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5927687A (en) * 1982-08-04 1984-02-14 Casio Comput Co Ltd Pocketable television receiver
JPS6043982A (en) * 1983-08-20 1985-03-08 Sanyo Electric Co Ltd Television receiver
JPS6088666U (en) * 1983-11-19 1985-06-18
JPS6256081A (en) * 1986-07-08 1987-03-11 Casio Comput Co Ltd Pocketable television receiver
JPS62182714A (en) * 1985-08-12 1987-08-11 Hitachi Device Eng Co Ltd System for driving liquid crystal display device
US4745485A (en) * 1985-01-28 1988-05-17 Sanyo Electric Co., Ltd Picture display device
US4792857A (en) * 1987-12-04 1988-12-20 Stanley Electric Co., Ltd. Liquid crystal television

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5927687A (en) * 1982-08-04 1984-02-14 Casio Comput Co Ltd Pocketable television receiver
JPS6043982A (en) * 1983-08-20 1985-03-08 Sanyo Electric Co Ltd Television receiver
JPS6088666U (en) * 1983-11-19 1985-06-18
US4745485A (en) * 1985-01-28 1988-05-17 Sanyo Electric Co., Ltd Picture display device
JPS62182714A (en) * 1985-08-12 1987-08-11 Hitachi Device Eng Co Ltd System for driving liquid crystal display device
JPS6256081A (en) * 1986-07-08 1987-03-11 Casio Comput Co Ltd Pocketable television receiver
US4792857A (en) * 1987-12-04 1988-12-20 Stanley Electric Co., Ltd. Liquid crystal television

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