Quantum dot blue light filtering film and display thereof

A technology of quantum dots and blue light filtering, applied in the field of flat panel displays, can solve the problems of brightness loss, display module brightness reduction, phosphor excitation efficiency reduction, etc., to achieve the effect of small loss, no loss of brightness, and increased intensity

Inactive Publication Date: 2017-07-14
SHENZHEN K&D TECHONOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, the purpose of the present invention is to solve 1. Existing types of blue light filter films (points A and B) absorb part of the blue light component and reduce its energy, resulting in different brightness of the display module after filtering. 2. Using backlight LED

Method used

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  • Quantum dot blue light filtering film and display thereof
  • Quantum dot blue light filtering film and display thereof
  • Quantum dot blue light filtering film and display thereof

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Experimental program
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Effect test

Embodiment 1

[0025] Reference figure 2 As shown in the figure, the quantum dot blue light filter film display of the present invention includes a liquid crystal display and a backlight assembly provided on the back of the liquid crystal display to provide a white light source. The liquid crystal display screen includes an upper light-increasing layer, a lower polarizer layer, an LCD layer, and an upper polarizer layer arranged in sequence. The traditional backlight assembly generally includes a light guide plate and an optical film set stacked in the direction of the light-emitting surface of the light guide plate. The optical film set may be a lower brightness enhancement layer. The present invention adds the above-mentioned between the light guide plate and the lower brightness enhancement layer. The quantum dot blue light filter film, that is, a quantum dot blue light filter film is arranged in the backlight assembly on the light-emitting surface of the light guide plate close to the liq...

Embodiment 2

[0028] Reference image 3 As shown in the figure, the quantum dot blue light filter film display of the present invention includes a liquid crystal display and a backlight assembly provided on the back of the liquid crystal display to provide a white light source. The light-emitting surface of the liquid crystal display screen is provided with the aforementioned quantum dot blue light filter film. That is, a quantum dot blue light filter film is also provided on the upper polarizer layer of the liquid crystal display screen. The mixed white light passes through the lower polarizer layer to become polarized light, and is emitted from the upper polarizer layer after the rotation of the LCD. At this time, the quantum dot blue light filter film attached to the surface of the upper polarizer layer achieves eye protection effect, and the overall brightness of the display is not lost. The backlight assembly includes a light guide plate and an optical film set stacked in the direction...

Embodiment 3

[0030] Reference Figure 4 As shown in the figure, the quantum dot blue light filter film display of the present invention includes an organic light emitting display panel, and the light emitting surface of the organic light emitting display panel is provided with the above quantum dot blue light filter film. The blue light component emitted by the organic light emitting display panel will excite the red and green light components after passing through the above-mentioned quantum dot blue light filter film, thereby reducing the blue light component and achieving the eye protection effect. At the same time, because blue light excites both red and green light, the overall brightness of the organic light emitting display panel will not change or decrease very little.

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Abstract

A quantum dot blue light filtering film and a display thereof relate to the technical field of a flat display, and solve the problem that the brightness of a display module after filtering will be reduced in different degrees if conventional blue light filtering films absorb part of blue light components. The quantum dot blue light filtering film comprises a substrate, a quantum dot coating layer evenly coating the substrate, and a protective film covering the quantum dot coating layer. The quantum dot coating layer comprises more than one quantum dot that emits non-blue light through stimulation of part of blue light in white incident light so as to reduce brightness of blue light in white outgoing light. Compared with the solution of the prior art, the solution of the invention utilizes blue light in white light to simulate quantum dots in the quantum dot blue light filtering film to emit light of other colors instead of just simply filtering blue light, so that brightness of blue light in white light is reduced, a clean blue light eye protection purpose is achieved, the intensity of light of other colors is increased, and the overall brightness of white light will not be lost or will be lost quite slightly.

Description

Technical field [0001] The invention relates to the technical field of flat panel displays. Background technique [0002] The existing various types of displays emit short-wave blue light that is harmful to the eyes. When light enters the human eye, the human eye lens absorbs a small part of the blue light, and the remaining blue light is absorbed by the macula; the lens absorbs excessive blue light , Can cause cataracts, and blue light can cause macular lesions. Short-wave blue light, especially blue-violet light between 415-450nm, has extremely high energy and can penetrate the lens directly to the retina. The highest damage to retinal cells. Therefore, it is necessary to use pure blue eye protection products to make up for the defects of current display screens. At present, there are three main directions for the net blue eye protection products: [0003] A. The blue light filter film (including tempered film, etc.) attached to the surface of the LCM. The film material of th...

Claims

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Application Information

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IPC IPC(8): G02B5/20G02F1/13357H01L51/52
CPCG02F1/1336G02B5/20G02F1/133614H10K50/858
Inventor 李伦瑞夏大学李仲儒欧木兰
Owner SHENZHEN K&D TECHONOLOGY
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