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Direct type backlight light bar, backlight module and display device

A direct type, backlight technology, used in optics, nonlinear optics, instruments, etc., can solve the problems of smaller color gamut of backlight modules, eye damage, and increased red light brightness.

Pending Publication Date: 2020-07-03
GUANGDONG HISENSE ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, choosing a long-wavelength blue LED chip will cause the color gamut of the backlight module to become smaller, and the quantum blue shift method will shift the frequency of the shorter wavelength to the blue light direction, and the brightness of the original blue light will increase to the red light, resulting in Increased brightness of red light can also cause eye damage

Method used

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  • Direct type backlight light bar, backlight module and display device
  • Direct type backlight light bar, backlight module and display device
  • Direct type backlight light bar, backlight module and display device

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0041] Liquid crystal display products include liquid crystal televisions, liquid crystal displays for computers, etc. The display devices of liquid crystal display products may include liquid crystal panels, backlight modules, power supplies, main boards, and casings. Illuminated imaging to display colorful images. Specifically, the backlight module transforms the commonly used point or linear light source into a high-brightness and uniform surface light source through a simple and effective structure, and then modulates the light source to make the LCD panel display different images. The following embodiments of the present invention provide a direct-type backlight light bar, which can be applied to the backlight module of a display device, so as not to change the blue wavel...

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Abstract

The invention provides a direct type backlight light bar, a backlight module and a display device. The direct type backlight light bar comprises a luminous source, a printed circuit board and an optical lens, the luminous source and the optical lens are arranged on the printed circuit board, the optical lens is arranged on the luminous source in a covering manner, the optical lens comprises a lensbody and a plurality of microstructures, the plurality of microstructures are arranged in the lens body, the size of each microstructure meets Rayleigh scattering conditions, the microstructures areused for scattering light of a blue wave band in incident light emitted by the light emitting source, and the blue wave band is a blue light wave band with the wavelength smaller than 450 nm. The wavelength of the blue light of the incident light is not changed, and the energy of the short-wave blue light in the emergent light is reduced, so that the display device provided with the direct type backlight light bar has an eye protection function, and the color gamut saturation of the display device is not influenced.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a direct-type backlight strip, a backlight module and a display device. Background technique [0002] With the development of electronic technology and the improvement of consumers' requirements for TV size and picture quality, LCD TV has become the mainstream development trend in the industry. Among them, the backlight module in the LCD TV usually includes an edge-type backlight module and a direct-type backlight (Bottom lighting) module. Compared with the edge-type backlight module, the direct-type backlight module can reduce the thickness. [0003] A liquid crystal display generally uses a Light Emitting Diode (LED for short) as a light source of a backlight module, and the light emitted by the LED contains short-wavelength blue light. Related studies have shown that high-energy short-wave blue light will be absorbed by the lens of the human eye and the macula of the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133606G02F1/133607
Inventor 张继兵李培平文喜平童志强
Owner GUANGDONG HISENSE ELECTRONICS CO LTD
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