Invention Grant
- Patent Title: Luminance control circuit and display device having the same
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Application No.: US16235374Application Date: 2018-12-28
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Publication No.: US10930211B2Publication Date: 2021-02-23
- Inventor: Jai-hyun Koh , Jaehoon Lee , Heendol Kim , Kuk-hwan Ahn , Soo-yeon Lee , Moonshik Kang
- 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
- Priority: KR10-2018-0001883 20180105
- Main IPC: G09G3/3233
- IPC: G09G3/3233 ; G09G3/36 ; G09G3/34 ; G09G3/3225

Abstract:
A luminance control circuit of a display device includes a target luminance gain calculator calculating a target luminance gain based on an average luminance of a first image signal when the first image signal is determined to be a still image, an output luminance gain calculator calculating an output luminance gain based on a previous output luminance gain of a previous frame and the target luminance gain of a present frame, and a luminance scaler outputting a second image signal obtained by changing a luminance of the first image signal based on the output luminance gain.
Public/Granted literature
- US20190213953A1 LUMINANCE CONTROL CIRCUIT AND DISPLAY DEVICE HAVING THE SAME Public/Granted day:2019-07-11
Information query
IPC分类: