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Novel high-color-gamut LED lamp panel and quantum film attaching method thereof

An LED light panel, high color gamut technology, applied in optics, instruments, electrical components, etc., can solve the problems of blue light leakage from the peripheral picture of the liquid crystal display device, affecting the picture quality of the liquid crystal display device, and the failure of the cutting edge of the quantum film, etc. Achieve the effect of reducing the use of quantum membranes, improving service life, and preventing failures

Pending Publication Date: 2021-12-28
YANCHENG DONGSHAN PRECISION MANUFACTURING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of blue LEDs usually leads to the problem of blue light leakage in the peripheral screen of the liquid crystal display device, which seriously affects the picture quality of the liquid crystal display device and reduces user satisfaction.
In addition, regardless of miniLED TVs or ordinary LED LCD TVs or monitors, they are constantly seeking solutions for high color gamut. The main way to achieve high color gamut is to mix a certain proportion of high color gamut phosphors in the LED colloid, or The solution of blue LED plus quantum film, but its cost is high, the cutting edge of quantum film will fail, and there is still room for improvement in color consistency and optical efficiency

Method used

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  • Novel high-color-gamut LED lamp panel and quantum film attaching method thereof
  • Novel high-color-gamut LED lamp panel and quantum film attaching method thereof
  • Novel high-color-gamut LED lamp panel and quantum film attaching method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The present invention comprises the following steps:

[0041] S1: Provide a quantum sheet 21, and attach a layer of self-adhesive turnover film on the surface of the entire quantum sheet 21 to facilitate the subsequent bonding of the quantum sheet 21 and the LED chip. Positioning, to ensure that the self-adhesive turnover film can completely cover the quantum sheet 21, to ensure the accurate positioning of the final relative position of the quantum sheet 21 and the LED chip 12, preferably, after the self-adhesive turnover film is attached to the quantum sheet 21, the The excess corners of the self-adhesive turnover film are cut to avoid unnecessary adhesion.

[0042] S2: Cut the quantum flakes 21 processed in S1 into several densely arranged quantum flakes 21, and remove other parts of the quantum flakes 21 after cutting and forming. The cut size of the quantum flakes 21 is slightly larger than Or equal to the size of the LED chip 12, specifically, according to the act...

Embodiment 2

[0049] The difference between this embodiment and Embodiment 1 is that, during the edge sealing process of the quantum sheet 21 in step S3, if the moisture barrier layer 212 is made of glass sheets, the outer peripheral surfaces between the two glass sheets are welded or welded for packaging.

[0050] In addition, it can be understood that before the lamp panel 1 is formed, the quantum sheet 21 can be pasted on the LED chip 12 through the above steps S1-S7 to form a new package of the LED chip 12, and then the quantum sheet 21 can be pasted. The LED chip 12 is pasted on the printed circuit board 11 in a traditional SMT manner.

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PUM

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Abstract

A novel high-color-gamut LED lamp panel comprises a printed circuit board, LED chips and a quantum sheet, wherein the plurality of LED chips are arranged in an array mode and electrically connected to the printed circuit board to form the lamp panel, the quantum sheet comprises two water vapor blocking layers and quantum powder arranged between the two water vapor blocking layers, the water vapor blocking layer on one side is attached to the LED chips. The quantum powder is sealed between the two water vapor blocking layers through the circumferential surface between the two water vapor blocking layers in a sputtering, evaporation, spraying or welding mode, so that packaging of the quantum powder is achieved. According to the invention, the whole quantum sheet is cut to form the quantum sheets which are arranged in a close array, and then the size is specifically adjusted in an expansion manner, so that the utilization rate of the layout space is improved, the use of quantum materials can be reduced, the purpose of reducing the manufacturing and production cost is achieved, meanwhile, the light transmission and the sealing performance of the quantum powder are improved in a manner of adding a coating on the water vapor blocking layer or mutually welding the outer circumferential surfaces of the water vapor blocking layer.

Description

technical field [0001] The invention belongs to the technical field of LED display screens, and in particular relates to a novel high color gamut LED lamp board and a quantum film attaching method thereof. Background technique [0002] As a new type of lighting source, LED has the characteristics of energy saving, environmental protection, long life, good color rendering, stable luminescence, high luminous efficiency, no flicker and bad glare, and has been widely concerned by people. Therefore, at the present stage Widely used in lamps. At present, with the development and wide application of liquid crystal display devices, users have higher and higher requirements on the color vividness of liquid crystal display devices, which requires increasing the color gamut value of liquid crystal display devices. As an important part of the liquid crystal display device, the backlight module usually realizes high color gamut display of the liquid crystal display device by increasing ...

Claims

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Application Information

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IPC IPC(8): H01L25/075H01L33/50G02F1/13357
CPCH01L25/0753H01L33/505G02F1/133614H01L2933/0041G02F1/133603
Inventor 李秀富
Owner YANCHENG DONGSHAN PRECISION MANUFACTURING CO LTD