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Display backboard, manufacturing method thereof and display device

A manufacturing method and display backplane technology, applied in the display backplane and its manufacture, and in the field of display devices, can solve problems such as slow deposition, influence on coating effect, and change in solution viscosity

Pending Publication Date: 2020-10-30
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in order to fully improve the luminous efficiency of the display backplane and enhance the scratch resistance of the display backplane, a layer of white organic material with high reflectivity is generally formed on the display backplane by screen printing or inkjet. material, or white photoresist (TiO 2 ), for white photoresist, which is composed of propylene glycol methyl ether acetate, acrylate monomer, titanium dioxide, acrylic resin, amorphous silicon SiO 2 , coupling agent and photoinitiator, due to its large solid content, the main component is TiO 2 It is solid and cannot be dissolved, so it is not a clear solution like ordinary photoresist, but a suspension. When it is on the machine for too long, it will slowly deposit, which will cause changes in the viscosity of the solution and affect the coating effect; Suitable for long-term on-machine production

Method used

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  • Display backboard, manufacturing method thereof and display device
  • Display backboard, manufacturing method thereof and display device

Examples

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Embodiment 1

[0035] In this embodiment, the preparation of the mixed solution in the first step is to mix the main titanium dioxide precursor and other auxiliary substances in an anhydrous solvent in a photoresist barrel to obtain a uniform mixed solution.

[0036] The titanium dioxide precursor is a solution-type precursor prepared by a solution method. In this embodiment, titanium alkoxide is preferably used as the titanium dioxide precursor, such as titanium isopropoxide, titanium n-butoxide, and the like.

[0037] The anhydrous solvent used in this embodiment is an anhydrous alcohol solvent, which can ensure the stability of the titanium dioxide precursor. The mixed solution is a uniform and stable clear liquid, and will not precipitate due to standing, thereby affecting the coating. cloth effect.

[0038] The remaining auxiliary substances in this embodiment include one or more of dispersants, binders, coupling agents, and photosensitizers.

[0039] The method of applying the mixed s...

Embodiment 2

[0046] Embodiment 2 of the present invention also provides a display backplane and its manufacturing method, and a display device including the display backplane. The difference between the manufacturing method of this embodiment and the manufacturing method of Embodiment 1 above is that this embodiment Titanium oxysulfate is selected as the main titanium dioxide precursor in the medium mixed solution. Titanyl sulfate also has the ability to maintain stable performance in anhydrous solvents, and can undergo a chemical reaction to form titanium dioxide after encountering water. The rest of the method steps are basically the same as those in Embodiment 1 of the present invention, and will not be repeated in this embodiment.

Embodiment 3

[0048] Embodiment 3 of the present invention provides a display backplane and its manufacturing method, and a display device including the display backplane. The difference between the manufacturing method of this embodiment and the manufacturing method of Embodiment 1 above is that in this embodiment Titanium tetrachloride is selected as the main titanium dioxide precursor in the mixed solution. Titanium tetrachloride maintains stable performance in anhydrous solvents, and can undergo a chemical reaction to form titanium dioxide after encountering water. The rest of the method steps are basically the same as those in Embodiment 1 of the present invention, and will not be repeated in this embodiment.

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Abstract

The invention discloses a display backboard, a manufacturing method thereof and a display device. The manufacturing method comprises the following steps: uniformly applying a mixed solution of which amain body is a titanium dioxide precursor to the surface of a substrate to form a precursor film layer; and then feeding the substrate into a reaction cavity with a humidity environment for a chemical reaction to enable the precursor film layer to be converted into a uniform titanium dioxide film so as to obtain a display backboard with the titanium dioxide film as an anti-scratch reflecting layer. The anti-scratch reflecting layer of the display backboard is high in uniformity and few in interface defects, and the reflectivity and the anti-scratch capacity of the display backboard can be effectively improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display device, especially to a display backplane of a display device and a manufacturing method thereof. Background technique [0002] A micro LED (MLED, MLED) display panel is a type of flat panel display, which is composed of individual microscopic light emitting diodes with a size of 1-10 microns. Compared with traditional liquid crystal display panels, micro-light-emitting diode display panels have greater contrast and faster response time, and consume less power. Although micro-light-emitting diodes and organic light-emitting diodes (OLEDs) also have the characteristics of low power consumption, micro-light-emitting diodes have higher Brightness, high luminous efficacy and long life. [0003] In the prior art, in order to fully improve the luminous efficiency of the display backplane and enhance the scratch resistance of the display backplane, a layer of white ...

Claims

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Application Information

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IPC IPC(8): G09F9/33G02B5/08
CPCG09F9/33G02B5/0808
Inventor 彭钊
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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