Liquid crystal display device
A technology of liquid crystal display devices and liquid crystal panels, which is applied to lighting devices, components of lighting devices, optics, etc., can solve problems such as dark screens, no panels, and reduced brightness of LED light sources, so as to save costs and improve the brightness of backlights Effect
Inactive Publication Date: 2015-02-25
TIANJIN SAMSUNG ELECTRONICS CO LTD +1
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- Description
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- Application Information
AI Technical Summary
Problems solved by technology
After the service life is reached, the brightness of the LED light source decreases, making the picture seen by the user dim, and the normal viewing effect cannot be achieved, and the LCD panel still works normally
The LED lights are one-time assembly. Once opened, dust will enter the LCD panel, causing a short circuit in the drive circuit of the LCD panel and causing dead pixels. Therefore, the existing LCD panel cannot be opened after assembly.
In this way, the entire LED-backlit LCD panel must be replaced only because the brightness of the LED light is reduced, and even because the manufacturer stopped production later, there is no corresponding panel to replace
This causes a very large waste and causes great losses to users.
Method used
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no. 2 example
[0031] As a modification of the above-mentioned embodiment, the LED light bar of this embodiment adopts a side fixing method, that is, the light-guide plate and the liquid crystal panel are confined in a closed space by using a high-transmittance light-transmitting sealing plate, and then the light-transmitting The outer side of the light sealing plate is fixed with LED light strips, which can be fixed on the light-transmitting sealing plate or on the plastic frame or outer frame around the light-transmitting sealing plate, and finally use the side fixing plate fixedly connected with the outer frame to seal the LED light bar To protect it, wherein, the fixing method of the LED light bar and the side fixing plate is preferably screw connection or clamping. In order to improve the heat dissipation effect of the LED light bar, the side fixing plate can be made of metal material, such as aluminum Wait.
[0032]When it needs to be replaced, just separate the side fixing plate from ...
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The invention discloses a liquid crystal display device, which comprises a liquid crystal display panel, a backlight module and an outer frame, wherein the liquid crystal display panel and the backlight module are accommodated in the outer frame; the backlight module comprises a rubber frame, a light guide plate and a light source which is arranged on a light entering side of the light guide plate; a light-transmitting sealing plate for separating the light guide plate from the light source is fixedly arranged between the light guide plate from the light source; the light source is detachably and fixedly connected with the rubber frame or the outer frame; and the light source is electrically connected with an energy supply device in a pluggable mode. The light guide plate is separated from a light-emitting diode (LED) light bar through the light-transmitting sealing plate with high transmittance, so that the environment of the light guide plate is not influenced by the action of the LED light bar; the fixing mode of the LED light bar is changed into a mode of fixedly fastening the LED light bar in a withdrawing way, and an airtight device is arranged at an outlet of the withdrawing LED light bar. When the normal service life of the LED light bar is reached, the backlight brightness and a normal using effect can be achieved by only replacing the light bar instead of the whole liquid crystal display device, and the user cost is greatly reduced.
Description
technical field [0001] The invention relates to the technical field of electronic display, in particular to a liquid crystal display device. Background technique [0002] With the development of the industry, mobile phones, digital cameras, digital video cameras, notebook computers, desktop computers, televisions, etc. are all developing in a more convenient, multi-functional and beautiful direction. However, the display screens of mobile phones, digital cameras, digital video cameras, notebook computers, desktop computers and televisions are indispensable human-machine communication interfaces. The display screens of the above products will bring more convenience. In recent years, most of the display screens on mobile phones, digital cameras, digital video cameras, notebook computers, desktop computers and televisions have been dominated by liquid crystal display panels. [0003] Since the liquid crystal in the liquid crystal display panel does not emit light itself, in o...
Claims
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IPC IPC(8): G02F1/13357F21V19/00F21Y101/02
Inventor 颜伟郝妮娜
Owner TIANJIN SAMSUNG ELECTRONICS CO LTD