TW200608341A - Electronic discharging control circuit and method thereof for LCD - Google Patents

Electronic discharging control circuit and method thereof for LCD

Info

Publication number
TW200608341A
TW200608341A TW093125315A TW93125315A TW200608341A TW 200608341 A TW200608341 A TW 200608341A TW 093125315 A TW093125315 A TW 093125315A TW 93125315 A TW93125315 A TW 93125315A TW 200608341 A TW200608341 A TW 200608341A
Authority
TW
Taiwan
Prior art keywords
gate
lcd
signal
control circuit
turning
Prior art date
Application number
TW093125315A
Other languages
Chinese (zh)
Other versions
TWI237229B (en
Inventor
Hsin-Chung Huang
Juin-Ying Huang
I-Cheng Chen
Original Assignee
Chunghwa Picture Tubes 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 Chunghwa Picture Tubes Ltd filed Critical Chunghwa Picture Tubes Ltd
Priority to TW93125315A priority Critical patent/TWI237229B/en
Application granted granted Critical
Publication of TWI237229B publication Critical patent/TWI237229B/en
Publication of TW200608341A publication Critical patent/TW200608341A/en

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

A discharging control circuit and method thereof is provided for a liquid crystal display (LCD). The discharging circuit includes a signal-off detector and an all-gate-on delay cell. When a LCD off signal is detected, a first control signal is transmitted to a power supply module for turning off power except that supplying gate-on voltage, yet turning off VGH as well after a specific delay time. A second control signal is also transmitted to the gate-on-delay cell, so that all gates of the pixel transistors are turned on after a second specific delay time. Electronic charges on the pixel transistor are discharged via a source thereof before the gate-on voltage decreases below a threshold value, such that a residual image phenomenon that is caused by heterogeneous filming fabrication is eliminated.
TW93125315A 2004-08-23 2004-08-23 Electronic discharging control circuit and method thereof for LCD TWI237229B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93125315A TWI237229B (en) 2004-08-23 2004-08-23 Electronic discharging control circuit and method thereof for LCD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93125315A TWI237229B (en) 2004-08-23 2004-08-23 Electronic discharging control circuit and method thereof for LCD

Publications (2)

Publication Number Publication Date
TWI237229B TWI237229B (en) 2005-08-01
TW200608341A true TW200608341A (en) 2006-03-01

Family

ID=36821382

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93125315A TWI237229B (en) 2004-08-23 2004-08-23 Electronic discharging control circuit and method thereof for LCD

Country Status (1)

Country Link
TW (1) TWI237229B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI393108B (en) * 2008-07-04 2013-04-11 Chimei Innolux Corp Liquid crystal display device and method for driving same
TWI405178B (en) * 2009-11-05 2013-08-11 Novatek Microelectronics Corp Gate driving circuit and related lcd device
TWI413051B (en) * 2009-06-29 2013-10-21 Chunghwa Picture Tubes Ltd Start protection circuit for gate driver and liquid crystal display thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI439998B (en) 2007-09-17 2014-06-01 Chunghwa Picture Tubes Ltd Signal control circuit and method thereof, and liquid crystal display
TWI416480B (en) * 2008-12-31 2013-11-21 Innolux Corp Liquid crystal display apparatus, liquid crystal display module and driving-controlling method thereof
US8368680B2 (en) 2009-06-29 2013-02-05 Chunghwa Picture Tubes, Ltd. Start protection circuit for gate driver and liquid crystal display thereof
CN104170001B (en) 2012-03-13 2017-03-01 株式会社半导体能源研究所 Light-emitting device and its driving method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI393108B (en) * 2008-07-04 2013-04-11 Chimei Innolux Corp Liquid crystal display device and method for driving same
TWI413051B (en) * 2009-06-29 2013-10-21 Chunghwa Picture Tubes Ltd Start protection circuit for gate driver and liquid crystal display thereof
TWI405178B (en) * 2009-11-05 2013-08-11 Novatek Microelectronics Corp Gate driving circuit and related lcd device
US9343029B2 (en) 2009-11-05 2016-05-17 Novatek Microelectronics Corp. Gate driving circuit and related LCD device capable of separating time for each channel to turn on thin film transistor

Also Published As

Publication number Publication date
TWI237229B (en) 2005-08-01

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees