An adaptive heating film, a display panel and a liquid crystal display device
A display panel and heating film technology, applied in instruments, nonlinear optics, optics, etc., can solve problems such as limited heat in liquid crystal cells, unsatisfactory heating effect, and heat loss
Active Publication Date: 2020-06-09
BOE TECH GRP CO LTD +1
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Problems solved by technology
Since the heating effect of the ITO transparent conductive film itself is not good, the heat that can be provided to the liquid crystal cell is very limited; in addition, due to the poor thermal conductivity of the glass, the heat generated by the ITO transparent conductive film is transferred to the liquid crystal cell through the heat transfer of the glass substrate. Most of the heat is lost in the process
Therefore, this structure will make the heating effect of the liquid crystal display panel unsatisfactory, and increase the weight of the liquid crystal display panel at the same time
[0006] 3. Deposit a layer of ITO film on the back of the TFT substrate (Array substrate), and apply voltage to the ITO film to heat the display. This method also has an unsatisfactory heating effect.
[0007] Moreover, the above three methods all need to start heating for external control or add a temperature sensor in the liquid crystal display panel to control the starting of heating
Method used
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[0028] In order to make the purpose, technical solutions and advantages of this document clearer, the embodiments of this document will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0029] In the following description, a lot of specific details are set forth in order to fully understand this article, but this article can also be implemented in other ways than described here, therefore, the protection scope of this article is not limited by the specific embodiments disclosed below .
[0030] The self-adaptive heating film, display panel and liquid crystal display device of some embodiments herein will be described below with reference to the accompanying drawings.
[0031] The adaptive heating film provided by the present invention, such as Figure 1 to Figure 3 As shown,...
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The invention discloses a self-adaptive heating film, a display panel and a liquid crystal display device. The self-adaptive heating film comprises a film body and a plurality of heating units for electrical heating and mounted on the film body and switching on and off with thermal expansion and thermal contraction of the film body. Namely, when the temperature of the film body is lower than first set temperature, the film body contracts and the plurality of heating units are connected; and when the temperature of the film body is no less than the temperature of the first set temperature, the plurality of heating units are disconnected. The self-adaptive heating film has a light and thin structure and can heat via changing physical dimension parameters upon low-temperature environment and can stop heating via changing physical dimension parameters when heating to the set temperature; and manual control or control of a temperature sensor can be unnecessary, so obvious practicality can be achieved.
Description
technical field [0001] This article involves but is not limited to liquid crystal display technology, especially an adaptive heating film, a display panel and a liquid crystal display device. Background technique [0002] Liquid crystal molecules cannot deflect normally in low temperature environment, so common liquid crystal display panels can only work normally at room temperature, and general indoor workplaces can meet such display requirements. However, for workplaces in cold climate regions or extremely low temperature, the liquid crystal display panel cannot work normally. [0003] In order to solve the above problems, the methods commonly used at present include: [0004] 1. Add an electric heating element to the LCD panel, and heat the LCD panel through the control circuit. For example: heating the liquid crystal display panel by wrapping a layer of heating jacket on the back of the entire liquid crystal display panel, this method can make the liquid crystal displa...
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IPC IPC(8): G02F1/1333
CPCG02F1/133382
Inventor 孙含嫣宋勇志王菲菲王光兴陈维涛朴仁镐张明辉
Owner BOE TECH GRP CO LTD