Display apparatus and control method thereof

By introducing a control method into the display device, the display panel is refreshed at a smaller refresh rate in response to the power-on command, and switch to a larger refresh rate after meeting the target conditions, the problem that the display device cannot start normally in low temperature scenarios is solved, and the cost-saving effect is achieved.

CN119600974AInactive Publication Date: 2025-03-11GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Patent Information

Application Number
CN202411999801.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-03-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The display device cannot be turned on normally in low temperature scenarios or display problems occur. The prior art requires adding a temperature replenishment circuit to solve this problem, but it increases additional cost and overhead.

Method used

By introducing a control method into the display device, the display panel is refreshed at a smaller refresh rate in response to the power-on command, and switch to a larger refresh rate after the target conditions are met to ensure that the display panel is turned on normally. This method does not require the introduction of a temperature compensation circuit, but is directly based on the existing power management integrated circuit.

Benefits of technology

It effectively solves the problem that the display device cannot be turned on normally in low-temperature scenarios, extends the charging time of thin film transistors, ensures that it is turned on normally, thereby ensuring that the display device is turned on normally and saving costs.

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Abstract

The invention discloses a display device and a control method thereof, and relates to the technical field of display. The method comprises the following steps: in response to a startup instruction, refreshing a picture required to be displayed by a display panel according to a first refresh rate; and in response to meeting the target condition, refreshing a picture required to be displayed by the display panel according to a second refresh rate, wherein the first refresh rate is smaller than the second refresh rate. According to the embodiment of the invention, a relatively small refresh rate is adopted in the startup process, the charging time of the thin film transistor in the startup process can be prolonged, and particularly for a low-temperature scene, the thin film transistor can be ensured to be normally started by prolonging the charging time, so that the display device is ensured to be normally started. Moreover, a temperature compensation circuit does not need to be introduced to compensate the grid conduction voltage of the thin film transistor, the problem that the display device cannot be normally started in a low-temperature scene can be solved based on the existing power management integrated circuit, and the cost of the display device is effectively saved.
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Citation Information

Patent Citations

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