IP Library Granted Patent US 8,587,580
Granted Patent B2
US 8,587,580 · App. 12/966,866 · Granted Nov 19, 2013

Liquid crystal display

Inventors: Il-Nam Kim (Yongin, KR); Won-Sang Park (Yongin, KR); Min-Woo Kim (Yongin, KR); Jae-Kyoung Kim (Yongin, KR); Dong-Hun Lim (Yongin, KR)
Assignee: Samsung Display Co., Ltd.
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Quick Facts
Patent No.
US 8,587,580
App. No.
12/966,866
Granted
Nov 19, 2013
Kind
B2
Abstract

A pixel structure of a liquid crystal cell that is implemented in a filed sequential liquid crystal display and a method of driving the same. The liquid crystal display includes: a liquid crystal display panel including a plurality of scan lines and data lines, and a plurality of pixels connected to the scan lines and the data lines and arranged in a matrix form; a control signal generating unit for providing a control signal and a reset signal to the pixels of the liquid crystal display panel respectively; a common voltage generating unit for providing a common voltage to the respective pixels; and a boosting voltage generating unit for providing a boosting voltage to the respective pixels.

Claims (15)

1. A liquid crystal display device comprising:

a liquid crystal display panel including a plurality of scan lines, a plurality of odd and even column data lines, and a plurality of pixels connected to the scan lines and the data lines, the pixels being arranged in a matrix form;

a control signal generating unit for providing a write control signal and a reset signal to the pixels of the liquid crystal display panel, respectively;

a common voltage generating unit for providing a common voltage to each of the pixels; and

a boosting voltage generating unit for providing boosting voltages to the pixels such that only the pixels connected to an odd column data lines each receive a first boosting voltage and only the pixels connected to an even column data lines receive a second boosting voltage different from the first boosting voltage, each of the pixels comprising:

a first thin film transistor having a gate electrode connected to one of scan lines and a source electrode connected to one of the data lines;

a second thin film transistor having a source electrode connected to a drain electrode of the first thin film transistor and a gate electrode connected to a write control signal line providing the write control signal;

a third thin film transistor having a source electrode connected to a drain electrode of the second thin film transistor and a gate electrode connected to a reset control signal line providing the reset signal;

a storage capacitor provided between the drain electrode of the first thin film transistor and the common voltage generating unit;

a liquid crystal capacitor having a first electrode connected to the drain electrode of the second thin film transistor; and

a boosting capacitor having a first electrode connected to the source electrode of the third thin film transistor and a second electrode connected to a drain electrode of the third thin film transistor.

2. The liquid crystal display device as claimed in claim 1 , further comprising the second electrode of the of the boosting capacitor being connected to the boosting voltage generating unit to receive a corresponding one of the first and second boosting voltages.

3. The liquid crystal display device as claimed in claim 2 , further comprising a second electrode of the liquid crystal capacitor being connected to the common voltage generating unit.

4. The liquid crystal display device as claimed in claim 1 , further comprising a second electrode of the liquid crystal capacitor being connected to the common voltage generating unit.

5. The liquid crystal display device as claimed in claim 1 , polarities of the first boosting voltage and the second boosting voltage being different at respective sub-frames.

Assignments (2)
DIVESTITURE Recorded Sep 21, 2012
From: SAMSUNG MOBILE DISPLAY CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029070/0516 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 28, 2011
From: KIM, IL-NAM; PARK, WON-SANG; KIM, MIN-WOO; KIM, JAE-KYOUNG; LIM, DONG-HUN
To: SAMSUNG MOBILE DISPLAY CO., LTD., A CORPORATION CHARTERED IN AND EXISTING UNDER THE LAWS OF THE REPUBLIC OF KOREA
Reel/Frame 025729/0231 →
Priority Claims (1)
KR 10-2010-0068451 · Jul 15, 2010 · national
Continuity (1)
Related Publication 20120013596A1 · Jan 19, 2012