发明名称 REDUNDANT OPERATION OF A BACKLIGHT UNIT OF A DISPLAY DEVICE UNDER OPEN CIRCUIT OR SHORT CIRCUIT LED STRING CONDITIONS
摘要 Disclosed embodiments relate to techniques for operating a backlight unit of a display device in a redundant mode and a non-redundant mode in the event of an open circuit condition or short string condition. For instance, in a redundant mode, multiple LED strings are driven to provide a first quantity of light, such that the combined output from all LED strings is capable of providing a total light output corresponding to a maximum brightness setting for the display device. In the case that one of the LED strings fails due to an open circuit condition or short string condition, the remaining LED strings may be driven to provide a second quantity of light that is greater than the first, such that the combined light output from the remaining LED strings provides the same total light output for achieving the maximum brightness setting.
申请公布号 US2014139498(A1) 申请公布日期 2014.05.22
申请号 US201213679728 申请日期 2012.11.16
申请人 APPLE INC. 发明人 HUSSAIN ASIF;PANDYA MANISHA P.
分类号 H05B37/03;G09G5/00;H01J9/00 主分类号 H05B37/03
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