Invention Grant
US08111223B2 Method of local dimming, backlight assembly for performing the method and display apparatus having the backlight assembly
有权
局部调光方法，用于执行该方法的背光组件和具有背光组件的显示装置
- Patent Title: Method of local dimming, backlight assembly for performing the method and display apparatus having the backlight assembly
- Patent Title (中): 局部调光方法，用于执行该方法的背光组件和具有背光组件的显示装置
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Application No.: US12335707Application Date: 2008-12-16
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Publication No.: US08111223B2Publication Date: 2012-02-07
- Inventor: Dong-Min Yeo , Gi-Cherl Kim , Byung-Choon Yang , Yong-Hoon Kwon
- Applicant: Dong-Min Yeo , Gi-Cherl Kim , Byung-Choon Yang , Yong-Hoon Kwon
- Applicant Address: KR Suwon-Si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-Si
- Agency: F. Chau & Associates, LLC
- Main IPC: G09G3/32
- IPC: G09G3/32
Abstract:
In order to perform local dimming, a driving dimming duty cycle is generated using a target gamma curve (TGV), wherein the driving dimming duty cycle corresponds to a representative grayscale value (RGV) of each of a plurality of dimming unit areas. Each of a plurality of light unit blocks of a light source is driven based on the driving dimming duty cycle, wherein the light unit blocks correspond to the dimming unit areas, respectively. Therefore, a display apparatus may display an image having a higher contrast ratio than normal.
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