Display device and method of compensating same
AssigneeWuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorsYang Zhou, Yong Zhao, Mugyeom Kim
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Abstract
A display device and a method of compensating the same are provided. The display device includes a display panel, an optical sensor, and a control unit. The optical sensor is disposed behind the display panel and configured to provide first optically sensed data and second optically sensed data. The control unit is electrically connected the optical sensor and the display panel and configured to determine service life of the display panel based on the first optically sensed data and the second optically sensed data and provide a compensation to the display panel.
Claims16
A display device, comprising:
- a display panel comprising a plurality of monochromatic sub-pixels;
- an optical sensor;
- and
- a control unit, wherein
- the optical sensor is disposed behind the display panel and configured to provide first optically sensed data and second optically sensed data;
- the control unit is electrically connected the optical sensor and the display panel and configured to determine service life of the display panel based on the first optically sensed data and the second optically sensed data and provide a compensation to the display panel;
- the control unit is configured to supply electrical power to the monochromatic sub-pixels of the display panel after multiplying an original electrical power supply value of the monochromatic sub-pixels by a compensation value;
- the control unit is configured to control the optical sensor to obtain the first optically sensed data and the second optically sensed data and record when the optical sensor obtains the data;
- and
- the compensation is an electrical current compensation or a voltage compensation.
A display device, comprising:
- a display panel;
- an optical sensor;
- and
- a control unit, wherein:
- the optical sensor is disposed behind the display panel and configured to provide first optically sensed data and second optically sensed data;
- the control unit is electrically connected the optical sensor and the display panel and configured to determine service life of the display panel based on the first optically sensed data and the second optically sensed data and provide a compensation to the display panel;
- and
- the display panel comprises three monochromatic sub-pixels of different colors, and the control unit is configured to supply electrical power to the three monochromatic sub-pixels of different colors of the display panel after multiplying an original electrical power supply matrix of the three monochromatic sub-pixels of different colors by a compensation matrix.
A method of compensating a display device, comprising steps of:
- S1:
- supplying a first electrical power supply value to a display panel at a first time and detecting a light emitting condition to obtain first optically sensed data;
- S2:
- supplying a first electrical power supply value to a display panel at a second time and detecting a light emitting condition to obtain second optically sensed data;
- S3:
- comparing the first optically sensed data with the second optically sensed data and the first time with the second time to determine an aging degree of the display device;
- S4:
- multiplying the first electrical power value by a compensation value to obtain a second electrical power supply value, supplying the second electrical power supply value to the display panel, and detecting a light emitting condition to obtain third optically sensed data;
- S5:
- determining whether a difference between the first optically sensed data and the third optically sensed data is less than 10%;
- and
- S6:
- adjusting the compensation value and returning to step S4 if the difference between the first optically sensed data and the third optically sensed data is greater than 10%.
Dependencies are inferred from the claim text.