Display panel and display method

A display method, comprising:

• S1, stopping loading a common voltage to sub-pixels in a preset period;
• S2, detecting position information corresponding to an external photoelectric signal irradiated onto a designated area of the display panel at the preset period;
• and
• S3, adjusting a display brightness or a display color of the sub-pixel in the designated area according to the position information;
• wherein the step S2 comprises:
• S21, receiving the external photoelectric signal and generating a feedback signal by a photo sensor located in the designated area;
• and
• S22, determining the position information corresponding to the external photoelectric signal according to the feedback signal;
• wherein the step S22 comprises:
• detecting a current change in the photo sensor through a common voltage line by a first current detecting module and detecting a current change in the photo sensor through a data line by a second current detecting module, thereby determining the position information;
• or
• wherein the step S22 comprises:
• detecting a current change in the photo sensor through a scan line by a first current detecting module and detecting a current change in the photo sensor through a data line by a second current detecting module, thereby determining the position information.

A display panel, comprising a color filter substrate (1) and a thin film transistor array substrate (2) disposed oppositely, and a liquid crystal layer (3) filled between the color filter substrate (1) and the thin film transistor array substrate (2);

• wherein
• the thin film transistor array substrate (1) comprises a display area (A), a non-display area (B), and a plurality of photo sensors (4) are disposed in the display area (A);
• the color filter substrate (2) is formed with a plurality of light transmissive passages (8);
• the thin film transistor array substrate (1) is disposed with a plurality of sub-pixels (11);
• and
• the photo sensor (4) is configured for detecting position information corresponding to an external photoelectric signal when receiving the external photoelectric signal;
• wherein the non-display area (B) has a plurality of control switches (5) disposed therein, the control switches (5) are configured to stop loading a common voltage to the sub-pixels (11) in a preset period;
• the plurality of light transmissive passages (8) are located at positions vertically corresponding to the plurality of photo sensors (4) on the color filter substrate (2);
• wherein the thin film transistor array substrate (2) is disposed with a plurality of data lines (10) and a plurality of common voltage lines (13);
• wherein the display panel further comprises a first current detecting module and a second current detecting module,
• wherein the first current detecting module is connected to the photo sensors (4) through the plurality of common voltage lines (13) and configured for detecting current changes in the photo sensors (4) along a scan line direction;
• wherein the second current detecting module is connected to the photo sensors (4) through the plurality of data lines (10) and configured for detecting current changes in the photo sensors (4) along a data line direction.