发明名称 |
Automatic brightness control for displays |
摘要 |
An automatic brightness adjustment for devices with displays includes the capability to assess ambient light. The assessment may be made using circuitry, such as a light meter circuit, by exploiting exposure control circuitry, or using other approaches. The ambient light value is sent to a brightness adjustment driver, which may employ a look-up table to keep track of brightness adjustments for particular ambient conditions. The look-up table may include distinct adjustment values. |
申请公布号 |
US9129549(B2) |
申请公布日期 |
2015.09.08 |
申请号 |
US201313900090 |
申请日期 |
2013.05.22 |
申请人 |
Intel Corporation |
发明人 |
Bell Cynthia S. |
分类号 |
G09G5/10;G09G3/20 |
主分类号 |
G09G5/10 |
代理机构 |
Jordan IP Law, LLC |
代理人 |
Jordan IP Law, LLC |
主权项 |
1. A mobile apparatus comprising:
a display; an imager to capture an image, provide an exposure for the image and adjust a brightness of the display, wherein said imager comprises a light sensor to detect an amount of light in a surrounding area, wherein the light sensor accumulates light energy over an integration interval to provide an indication of the amount of light; and a processor to determine a perceived brightness value based on an equation whose value varies with the detected amount of light, wherein the equation comprises a factor that is a direct adaptation effect and a factor that is a lateral adaptation effect, and wherein conflicts between direct and lateral adaptations of a user's eye are to be avoided based on the perceived brightness value, wherein the lateral adaptation effect comprises a sum of weighted adaptations to spot luminances in proportion to their angular displacements from an axis of vision. |
地址 |
Santa Clara CA US |