Invention Grant
- Patent Title: Liquid crystal display device and method of driving the same
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Application No.: US16506154Application Date: 2019-07-09
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Publication No.: US10909935B2Publication Date: 2021-02-02
- Inventor: Jahun Koo , Jinho Park , Jong Deuk Moon , Su-Han Woo , Kyung-Hun Lee , Kyung-Uk Choi
- Applicant: SAMSUNG DISPLAY CO., LTD.
- Applicant Address: KR Yongin-si
- Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee Address: KR Yongin-si
- Agency: F. Chau & Associates, LLC
- Priority: KR10-2018-0098219 20180822
- Main IPC: G09G5/10
- IPC: G09G5/10 ; G09G3/34 ; G09G3/36

Abstract:
A liquid crystal display device includes a liquid crystal display panel, a light source configured to provide the liquid crystal display panel with a light, a vertical blank detector circuit configured to calculate a counting value of a vertical blank period of a frame by counting a synchronization signal, a luminance correction value calculator circuit configured to calculate a luminance correction value by comparing the counting value of the vertical blank period with a plurality of reference counting values, and a light source driver configured to generate a light source driving signal and provide the light source driving signal to the light source. The light source driving signal has a normal level corresponding to a normal luminance value in an active period of the frame and has a correction level corresponding to the luminance correction value in the vertical blank period of the frame.
Public/Granted literature
- US20200066215A1 LIQUID CRYSTAL DISPLAY DEVICE AND METHOD OF DRIVING THE SAME Public/Granted day:2020-02-27
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