The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2015
Filed:
Jul. 12, 2011
Dae-gwang Jang, Incheon, KR;
Tae Kwon Jung, Asan-si, KR;
Donghak Pyo, Cheonan-si, KR;
Min Ha Keum, Cheonan-si, KR;
Hak-mo Choi, Seoul, KR;
Dae-Gwang Jang, Incheon, KR;
Tae Kwon Jung, Asan-si, KR;
Donghak Pyo, Cheonan-si, KR;
Min Ha Keum, Cheonan-si, KR;
Hak-Mo Choi, Seoul, KR;
Samsung Display Co., Ltd., Yongin, Gyeonggi-do, KR;
Abstract
In a display apparatus, a display panel is divided into dimming areas and a backlight device includes light source blocks providing light to the dimming areas. Average gray-scale values and maximum gray-scale values respectively corresponding to the dimming areas are generated based on image signals provided to the dimming areas. Whether the average gray-scale values and the maximum gray-scale values are respectively within first and second reference ranges are checked. One of at least two parameters is selected according to a checked result, and representative brightness values respectively corresponding to the dimming areas are determined using the selected parameter. Duty ratios of the light source blocks are controlled based on the representative brightness values. As a result, power consumption is reduced when applying a dimming device to the display apparatus.