Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

COA substrate and preparation method thereof as well as display device

A technology for substrates and array substrates, applied in optics, instruments, nonlinear optics, etc., can solve problems that do not consider the polarization characteristics of quantum dots, and achieve the effect of thinning and thinning

Inactive Publication Date: 2015-12-09
BOE TECH GRP CO LTD +1
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventors have found at least the following problems in the prior art: when quantum dots are applied to display products, only how to excite the quantum dots to emit light of different colors is considered, but the polarization characteristics of the quantum dots of the quantum dots are not considered, so In the present invention, a quantum dot structure with polarization properties is proposed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • COA substrate and preparation method thereof as well as display device
  • COA substrate and preparation method thereof as well as display device
  • COA substrate and preparation method thereof as well as display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, this embodiment provides a COA substrate, including an array substrate 10 and a color filter layer 20 disposed on the light-emitting surface side of the array substrate 10, and the color filter layer 20 includes different color filters 21 / 22 / 23, the optical filter 21 / 22 / 23 is formed of a quantum dot material; the quantum dot has an orientation and is used to convert natural light into polarized light.

[0033] Since the filters 21 / 22 / 23 in the color filter layer 20 of the COA substrate in this embodiment are made of quantum dot materials, and the quantum dots have an orientation and can convert natural light into polarized light, the COA substrate is applied In the display panel, the lower polarizer (the polarizer on the side close to the backlight source) is not needed at this time, so that the thickness of the display panel is reduced, thereby realizing the thinning of the display device.

[0034] Wherein, the COA substrate includes a disp...

Embodiment 2

[0042] This embodiment provides a method for preparing a COA substrate, and the COA substrate may be the COA substrate in Embodiment 1. The method specifically includes the following steps:

[0043] Steps of forming the array substrate 10 and forming the color filter layer 20 on the light emitting surface side of the array substrate 10 . Wherein, the steps of forming the color filter 21 / 22 / 23 include;

[0044]Optical filters 21 / 22 / 23 of different colors are sequentially formed on the light-emitting surface side of the array substrate 10, wherein the material of the optical filters 21 / 22 / 23 is quantum dots; the quantum dots have an orientation, and for converting natural light into polarized light.

[0045] Wherein, the described optical filters of different colors are: red optical filter R, green optical filter G, blue optical filter B; Or, the described optical filters of different colors are: red optical filter R, green optical filter Filter G, blue filter B / yellow filter...

Embodiment 3

[0051] Such as Figure 4 As shown, this embodiment provides a display device, which includes the COA substrate of Embodiment 1, and also includes a box-aligning substrate 40 opposite to the COA substrate, and an upper polarizer 50 is arranged on the light-emitting surface side of the box-aligning substrate 40 , and because the quantum dots in the color filter layer 20 in the COA substrate have an orientation, they can convert natural light into polarized light, so the setting of the lower polarizer can be omitted, so the display device of this embodiment is thinner.

[0052] The display device may be any product or component with a display function such as a liquid crystal display panel, electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, navigator, and the like.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a COA substrate and a preparation method thereof as well as a display device, belonging to the technical field of display and solving the problem that the existing display device is relatively thick. The COA substrate provided by the invention comprises an array substrate, a colored optical filter layer which is arranged at the light emitting surface side of the array substrate, wherein the colored optical filter layer comprises optical filters with different colors, and the optical filters are prepared from quantum dot materials; quantum dots have orientation and are used for converting natural light into polarized light. As the optical filters of the colored optical filter layer of the COA substrate are prepared from the quantum dot materials, the quantum dots have orientation, and can be used for converting the natural light into the polarized light, so that the COA substrate is applied to a display panel, a polarizing film is not needed at the moment, so that the thickness of the display panel is reduced, and further, the lightness and thinness of the display device can be realized.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a COA substrate, a preparation method thereof, and a display device. Background technique [0002] Quantum Dot (QuantumDot) is a semiconductor nanostructure that binds conduction band electrons, valence band holes, and excitons in three spatial directions. This constraint can be attributed to electrostatic potential (by external electrodes, doping, strain , impurity generation), the interface of two different semiconductor materials (for example: in self-assembled quantum dots), the surface of a semiconductor (for example: semiconductor nanocrystals), or a combination of the above three. Quantum dots have separate quantized energy spectra, corresponding to wave functions that are spatially located in the quantum dot, but extend over several lattice periods. A quantum dot has an integer number (1-100) of electrons, holes or hole-electron pairs, that is, the electric ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G02F1/1335G02B5/20
CPCG02B5/20G02F1/133514G02F1/133516
Inventor 闫龙
Owner BOE TECH GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com