Control method of backlight unit, display panel and display device

The technology of a backlight unit and a control method, which is applied to static indicators, instruments, etc., can solve problems such as excessive power of display devices and brightness deviation of light-emitting units, and achieve the effects of avoiding excessive power and improving brightness stability

Active Publication Date: 2022-03-08
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention provides a control method of a backlight unit, a display panel and a display device, which are used to solve the problem of the display device in the prior art. As the ambient temperature rises, the brightness of the light-emitting unit of the backlight unit shifts, which further leads to a power loss of the display device. Excessive technical problems

Method used

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  • Control method of backlight unit, display panel and display device
  • Control method of backlight unit, display panel and display device
  • Control method of backlight unit, display panel and display device

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Embodiment Construction

[0044] Embodiments of the present invention provide a control method for a backlight unit, a display panel, and a display device. In order to make the object, technical solution, and effect of the present invention clearer and clearer, the present invention will be described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present invention.

[0045] The embodiment of the present invention aims at the technical problem of the display device in the prior art that the brightness of the light emitting unit of the backlight unit shifts as the ambient temperature rises, which further causes the power of the display device to exceed the standard. This embodiment can solve this defect.

[0046] see figure 2 , figure 2 The flow chart of the control method of the backlight unit provided by the embodiment of ...

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Abstract

The present invention provides a control method for a backlight unit, a display panel and a display device. The control method includes the following steps: obtaining the ambient temperature through a temperature detection module; comparing the ambient temperature with a first reference temperature reference value; Determine the driving mode of the light-emitting unit of the backlight unit; wherein, when the ambient temperature is higher than or equal to the first reference temperature reference value, the driving mode is the first backlight driving mode, and the first backlight driving The method includes first driving subfields, and each of the first driving subfields is composed of bright subfields and dark subfields. The invention adjusts the bright subfield or dark subfield time of each driving subfield of the backlight unit at different ambient temperatures, so that the brightness displayed by the display device under different ambient temperatures is consistent, and further avoids the problem of excessive power of the display device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a control method of a backlight unit, a display panel and a display device. Background technique [0002] With the vigorous development of the information society, people's demand for information display is becoming more and more urgent and extensive, and the requirements are becoming more and more stringent. The display technology of the panel industry has developed rapidly since the 1990s and gradually matured. Because the flat panel display has the advantages of high definition, good image color, power saving, light and thin, easy to carry, etc., it has been widely used in the above information display products, so it has a broad market prospect. With the increasingly mature driving technology of the panel industry, opportunities and challenges also follow. Due to the limitations of the liquid crystal display (Liquid Crystal Display, LCD) backlight, such as high power consu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34
CPCG09G3/3406G09G2320/041G09G2310/08G09G2310/0237G09G2330/021G09G2320/0233
Inventor 陈小龙
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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