Anti-blue-light backlight module and display screen
A backlight module and anti-blue light technology, which is applied in the field of display screen, can solve the problems that the display screen is prone to display dark areas and the high cost of anti-blue light of the display screen.
Pending Publication Date: 2022-03-01
广东高展智科光电有限公司
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Problems solved by technology
[0005] The main purpose of the present invention is to propose an anti-blue light backlight module and a display screen, aiming at solving the problems of high cost of anti-blue light on the existing display screen and easy display of dark areas on the display screen
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[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0041] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0042] In addition, if there are descriptions involving "first", "second" and ...
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The anti-blue-light backlight module comprises a back plate, a light source assembly, a diffusion plate and a light guide ring, the back plate comprises a back plate body, the back plate body is bent from the edge of the back plate body to the inner side of the back plate body to form a back plate folding edge, and the back plate folding edge and the back plate folding edge jointly define a containing cavity with an opening; the light source assembly is arranged on the bottom wall of the containing cavity and comprises a light source and an anti-blue-light transparent cover arranged on the outer side of the light source in a covering mode. The diffusion plate is arranged on the folded edge of the back plate and covers the opening of the accommodating cavity; the light guide ring is annularly arranged between the diffusion plate and the folded edge of the back plate along the circumferential side of the diffusion plate, the light guide ring is provided with a light inlet side face facing the light source assembly, at least part of the light guide ring extends into the containing cavity, and a blue light barrier film is attached to at least the area, located in the containing cavity, of the light inlet side face; the anti-blue-light transparent cover and the blue-light barrier film are arranged to achieve the anti-blue-light effect, and the light guide ring is arranged to solve the problem that the brightness of the display screen is not uniform due to dark areas at the corners of the display screen.
Description
technical field [0001] The invention relates to the technical field of display screens, in particular to an anti-blue light backlight module and a display screen. Background technique [0002] Normally, the wavelength range of electromagnetic waves perceivable by the human eye is between 380nm and 780nm. Electromagnetic waves in this range are called "visible light". Among them, the wavelength of 380nm-410nm is high-energy blue-violet light, and the wavelength of 420nm-450nm is short-wave blue light. . Studies have shown that long-term exposure to blue light with a wavelength of 380nm-450nm can cause retinal damage, which in turn can lead to cataracts, macular degeneration and other diseases. [0003] The existing backlight module includes a reflector, a diffusion plate, an optical film, a liquid crystal panel, and a glass protection sheet that are sequentially fixed on the backplane. The LED light bar is located on the side of the diffusion plate, and the above components ...
Claims
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IPC IPC(8): G02F1/13357
CPCG02F1/133607G02F1/133606
Inventor 何为万灿田惠青欧寿山
Owner 广东高展智科光电有限公司