Display panel and display device

A technology for display panels and substrates, applied in optics, instruments, nonlinear optics, etc., can solve problems such as color filter substrates without liquid crystal display panels, and achieve the effects of improving display quality, reducing costs, and improving display color gamut

Inactive Publication Date: 2017-03-22
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Quantum dots have the above advantages, but at present, most of quantum dots are used in fluorescent labels, but not in color filter substrates of liquid crystal display panels.

Method used

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  • Display panel and display device
  • Display panel and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] see Figure 9 , a display panel provided in an embodiment of the present application includes:

[0063] Blue backlight 106, lower substrate 105 on blue backlight 106, TFT array 104 on lower substrate 105, PDLC layer 103 on TFT array 104, quantum dots on PDLC layer 103 Layer 102, the upper substrate 101 above the quantum dot layer 102.

[0064] Wherein, a PS107 is provided in the PDLC layer 103;

[0065] The quantum dot layer 102 is provided with a black matrix 201 and a blank area 204 , a green quantum dot layer 301 , and a red quantum dot layer 303 . The green quantum dot layer 301 constitutes a green sub-pixel region, and the red quantum dot layer 303 constitutes a red pixel region.

[0066] Wherein, the quantum rod materials that can be used for the green quantum dot layer 301 and the red quantum dot layer 303 include: GaAS, GaP, InGaAs and the like.

[0067] The blue backlight 106 is not limited to a blue backlight, as long as the wavelength can excite quantum d...

Embodiment 2

[0076] On the basis of the first embodiment, further, a blue quantum dot layer or a transparent resin or a blue resin may be provided in the blank area 204 .

[0077] Due to the low light conversion efficiency of quantum dots, when exciting red quantum dots, there may be light leakage from the backlight, resulting in color mixing. In order to prevent light leakage, red, green, and blue color filter layers can be prepared respectively on top of the red, green, and blue quantum dot layers, so that the light from the backlight can be filtered through the color filter layers. Wherein, the color filter layer is the resin layer where the red resin layer, the green resin layer and the blue resin layer are located.

[0078] Therefore, see Figure 10 , a display panel provided in this embodiment includes:

[0079] Blue backlight 106, lower substrate 105 on blue backlight 106, TFT array 104 on lower substrate 105, PDLC layer 103 on TFT array 104, quantum dots on PDLC layer 103 Layer ...

Embodiment 3

[0083] see Figure 11 , the display panel provided in this embodiment includes:

[0084] Blue backlight 106, the lower substrate 105 on the blue backlight 106, the TFT array 104 on the lower substrate 105, the quantum dot layer 102 on the TFT array 104, the quantum dot layer 102 on the quantum dot layer 102 The PDLC layer 103 and the upper substrate 101 on the PDLC layer 103 .

[0085] Wherein, a PS 107 is provided in the PDLC layer 103;

[0086] The quantum dot layer 102 is provided with a black matrix 405 and a blank area 503 , a red quantum dot layer 402 , and a green quantum dot layer 404 . The green quantum dot layer 404 constitutes a green sub-pixel region, and the red quantum dot layer 402 constitutes a red pixel region. A green resin layer 403 is further disposed on the green quantum dot layer 404 , and a red resin layer 401 is further disposed on the red quantum dot layer 402 .

[0087] Embodiment 3 is the same as Embodiment 2. In order to prevent backlight from b...

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Abstract

The invention discloses a display panel and a display device to improve the display color gamut and color saturation of a liquid crystal display panel and omit polarizers, so that the device is simpler in structure, and cost is reduced. The display panel comprises an upper substrate, a lower substrate and a TFT (thin film transistor) array, wherein the TFT array is positioned between the upper substrate and the lower substrate. A PDLC (polymer dispersed liquid crystal) layer and a quantum dot layer are further arranged between the TFT array and the upper substrate.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] Quantum dots, also known as nanocrystals, are generally spherical or quasi-spherical, and are nanoparticles with a diameter of 2-20 nm made of semiconductor materials (usually composed of IIB-VIA or IIIA-VA elements). The excitation spectrum of quantum dots is wide and continuously distributed, and the emission spectrum of quantum dots is narrow and symmetrical, with adjustable colors, high photochemical stability, and long fluorescence lifetime. The emission spectrum of quantum dots can be controlled by changing the size of quantum dots, and the spectrum covers the entire visible light region. [0003] Quantum dots have the above advantages, but currently most quantum dots are used in fluorescent labels, but not in color filter substrates of liquid crystal display panels. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02F1/1334
CPCG02F1/133615G02F1/1334
Inventor 谷新
Owner BOE TECH GRP CO LTD
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