Invention Grant
- Patent Title: Display apparatus and method of driving the same
- Patent Title (中): 显示装置及其驱动方法
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Application No.: US12143920Application Date: 2008-06-23
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Publication No.: US08587619B2Publication Date: 2013-11-19
- Inventor: Sung-Woon Kim , Yong-Hwan Shin , Hwa-Sung Woo , Hee-Seop Kim
- Applicant: Sung-Woon Kim , Yong-Hwan Shin , Hwa-Sung Woo , Hee-Seop Kim
- Applicant Address: KR Yongin
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Yongin
- Agency: H.C. Park & Associates, PLC
- Priority: KR10-2007-0101581 20071009
- Main IPC: G09G5/10
- IPC: G09G5/10 ; G09G3/30

Abstract:
A display apparatus includes a first display plate, a first electrode and a second electrode disposed on the first display plate, a second display plate, a third electrode disposed on the second display plate, and a liquid crystal layer disposed between the first display plate and the second display plate. The liquid crystal layer includes liquid crystal molecules oriented substantially perpendicular to the first display plate and the second display plate in a state where no voltage is applied to the first to third electrodes. When a display state is to change from a first grayscale in a first grayscale region to a second grayscale in a second grayscale region, a return voltage, which is larger than the sum of the common voltage and a threshold voltage of the liquid crystal molecules, is applied to the first electrode and the second electrode for at least a specified period before the first drive voltage and the second drive voltage, which correspond to the second grayscale, are applied to the first electrode and the second electrode.
Public/Granted literature
- US20090091587A1 DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME Public/Granted day:2009-04-09
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