- 专利标题: Display latency calibration for organic light emitting diode (OLED) display
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申请号: US15582307申请日: 2017-04-28
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公开(公告)号: US10140955B1公开(公告)日: 2018-11-27
- 发明人: Evan M. Richards , Matthew Robert Fulghum
- 申请人: Facebook Technologies, LLC
- 申请人地址: US CA Menlo Park
- 专利权人: Facebook Technologies, LLC
- 当前专利权人: Facebook Technologies, LLC
- 当前专利权人地址: US CA Menlo Park
- 代理机构: Fenwick & West LLP
- 主分类号: G09G3/3225
- IPC分类号: G09G3/3225 ; G09G5/10
摘要:
A system for calibrating an organic light emitting diode (OLED) display is presented. The calibration system includes a series of photodiodes coupled to at least a portion of illumination elements of the OLED display, a controller, and a driver circuit. The series of photodiodes is configured to measure, for one or more illumination elements, illumination latencies and time delays associated with different brightness levels. The controller obtains, for each illumination element, information about brightness levels associated with image light emitted from that illumination element for at least two consecutive video frames. Based on the measured latencies, the time delays and the information about brightness levels, the controller determines a driving signal for a driver circuit for each illumination element. The driver circuit applies the determined driving signal to that illumination element to calibrate the OLED display.
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