Black matrix forming method, display module and display device

A display module and black matrix technology, applied in identification devices, instruments, vacuum evaporation coating, etc., can solve the problems of low precision, thick thickness, etc., achieve low light transmittance, ensure the effect of light output and contrast

Pending Publication Date: 2021-06-18
HUIZHOU JUFEI OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for forming a black matrix, a display module and a display device. The main technical problems to be solved are: the traditional black matrix formation method has low precision and thick thickness

Method used

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  • Black matrix forming method, display module and display device
  • Black matrix forming method, display module and display device
  • Black matrix forming method, display module and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] In order to solve the problems that the black matrix formed by the traditional black matrix forming method is relatively thick and the precision is not high. This embodiment provides a black matrix forming method, please refer to figure 1 , the black matrix forming method includes:

[0057] S101, placing the black target on a platform with a magnetic field;

[0058] S102, placing the target board and the black target material opposite to each other, and the side of the target board to be formed with the black matrix is ​​opposite to the black target material;

[0059] S103, using a mask to cover the first region corresponding to the light emitting device on the target board, and depositing a black target material on the surface of the target board by magnetron sputtering to form a black matrix.

[0060]The black target is the material used to form the black matrix, including but not limited to carbon black, metal light-absorbing materials and other materials that can ...

Embodiment 2

[0087] In order to better illustrate the black matrix forming method of the present invention, this embodiment will be further described in conjunction with the accompanying drawings and the specific forming process, please refer to image 3 , is a detailed flow chart of the black matrix forming method provided in this embodiment. In this embodiment, the target board is taken as an example of a mini LED display module. The mini LED display module includes a substrate, an array of light-emitting devices arranged on the substrate, and an encapsulant for encapsulating and protecting the light-emitting devices. In this embodiment, Among them, the light-emitting device specifically includes a mini LED chip. In the following example of this embodiment, a black matrix is ​​formed on the packaging glue of the mini LED display module.

[0088] S201, setting a first mask plate on the mini LED display module, and placing it in a vacuum container;

[0089] Such as Figure 4 , the first ...

Embodiment 3

[0114] This embodiment provides a display module, which includes a black matrix, and the black matrix is ​​formed by using the black matrix forming method exemplified in Embodiment 1 and Embodiment 2. Exemplarily, the black matrix can be formed on the substrate including but not limited to the display module, the packaging glue of the display module, and the cover plate of the display module. The display module may include but not limited to mini LED display module, OLED display module, micro LED display module, etc.

[0115] This embodiment provides a display device, which includes the above-mentioned display module. The display device provided in this embodiment can be applied to various lighting fields, for example, it can be applied to various display fields (which can be televisions, monitors, terminals such as mobile phones), the display module may include, for example, an LED display panel, a mini LED display panel, a micro LED display panel, and the like. The above-me...

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Abstract

The invention provides a black matrix forming method, a display module and a display device. The black matrix forming method comprises the steps that a black target material is placed on a platform with a magnetic field; a target plate and the black target material are oppositely placed, and the face, where a black matrix is to be formed, of the target plate is opposite to the black target material; and a first region, corresponding to a light-emitting device, on the target plate is covered by using a mask, and the black target material is deposited on the surface of the target plate through magnetron sputtering to form the black matrix. The black matrix is formed through magnetron sputtering and the mask, the precision is high, the thickness of the formed black matrix can be small, the light transmittance can be low, and the light emitting effect and the contrast ratio of the display module can be guaranteed.

Description

technical field [0001] The invention relates to the field of display devices, in particular to a method for forming a black matrix, a display module and a display device. Background technique [0002] For displays such as mini LED (mini Light Emitting Diode, sub-millimeter light-emitting diode) screens, in order to improve the contrast of the display, inkjet printing, silk screen printing, and spraying can be used on the surface of the circuit substrate of the display module or the surface of the protective colloid. Black matrices are set by means of coating, coating, etc. These black matrices can effectively reduce the cross-light between different pixels and improve the contrast. [0003] In some display modules, the thickness and precision of black matrix formation have an impact on the light emission angle, light uniformity and even appearance of the display module. As the distance between pixels in the display module becomes smaller and smaller, the black matrix The de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/04C23C14/35G09F9/33
CPCC23C14/042C23C14/35G09F9/33
Inventor 陈锐冰
Owner HUIZHOU JUFEI OPTOELECTRONICS CO LTD
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