Measuring device and associated method for measuring response speed of display panel
AssigneeMStar Semiconductor, Inc.
InventorsChih-Chiang Chiu, Tien-Hua Yu, Wen-Cheng Wu
Life of this patent
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Abstract
A measuring device for measuring a response speed of a display panel is provided. The measuring device includes a microcontroller and at least one photo sensor. The microcontroller provides a control command, according to which a display controller of the display panel provides test pattern to the display panel. The photo sensor senses a test frame displayed corresponding to the test pattern by the display panel, and provides a corresponding sensing signal associated with brightness and a response signal. According to the response signal, the response speed of the display panel is calculated.
Claims17
A measuring device, for measuring a response speed of a display panel, the display panel being coupled to a display controller, the measuring device comprising:
- a microcontroller, coupled to the display controller, for providing a control command to the display controller, such that the display controller provides a test pattern to the display panel according to the control command;
- and
- a first photo sensor, for sensing a test frame associated with the test pattern on the display panel to provide a first sensing signal, which is associated with a brightness and a response signal for calculating the response speed of the display panel,
- wherein the microcontroller further receives an interrupt signal from the display controller, and the interrupt signal is associated with a timing of the test pattern for synchronizing the measuring device with the display controller.
A method for measuring a response speed of a display panel using a measuring device, coupled to a display controller, the method comprising:
- providing a microcontroller, coupled to the display controller;
- providing a first photo sensor;
- issuing a control command by the microcontroller to the display controller, prompting the display controller to provide a test pattern to the display panel according to the control command;
- sensing a test frame corresponding to the test pattern on the display panel by the first photo sensor to generate a corresponding first sensing signal associated with a brightness;
- outputting a response signal for calculating the response speed of the display panel;
- and
- receiving an interrupt signal from the display controller by the microcontroller, wherein the interrupt signal is associated with a timing of the test pattern for synchronizing the measuring device with the display controller.
Dependencies are inferred from the claim text.