| 摘要 |
PURPOSE: A liquid crystal display panel, a liquid crystal display device, a photo detecting device and light intensity adjustment method are provided to output multi-bit digital signal corresponding to light intensity by detecting light. CONSTITUTION: A plurality of thin film transistors are arranged at crossings of a plurality of first data lines and second data lines. A plurality of thin film transistors is connected to a first data line and a first scan line. A plurality of liquid crystal pixel units are respectively driven by the first thin film transistor. An embedded optical sensing module(106) senses light. The embedded optical sensing module outputs a multi- bit digital signal.
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