Process method for realizing color display on black and white screen

A technology of color display and process method, which is applied in the field of display screen and can solve the problems of multi-color, halftone dots, inability to do anything, low yield, shadow, etc.

Inactive Publication Date: 2021-05-07
SHENZHEN ELECHEM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Usually color film screen printing has 6-8 colors, and the color changes gradually from dark to light, and the effect of gradual change needs to be achieved by screen printing with different densities of dots. Screen printing is difficult, low yield, and high cost
[0004] 2. It is very difficult to set the positions between 6-8 colors, and if there is a slight misalignment, it is easy to produce shadows due to the overlapping of adjacent colors, which cannot meet the needs of th...

Method used

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  • Process method for realizing color display on black and white screen
  • Process method for realizing color display on black and white screen
  • Process method for realizing color display on black and white screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] figure 1 A specific embodiment of the black-and-white-to-color display screen of the present application is shown, and the black-and-white to color display screen includes from top to bottom: an upper polarizer, a liquid crystal glass, a lower polarizer, a polymer coating layer, a color ink layer and a backlight plate. The black and white to color display screen is made through the following process:

[0038] Attach the bottom surface of the upper polarizer and the top surface of the lower polarizer to the two sides of the liquid crystal glass respectively;

[0039] Spray the color printing ink to the side of the lower polarizer away from the liquid crystal glass to form a color ink layer;

[0040] Lay the backlight plate and the lower bias film, and the colored ink layer is located between the two.

[0041] In the above steps, since the color ink layer is directly sprayed on the lower polarizer, there is no need for registering like the silk screen color film in the...

Embodiment 2

[0065] Such as Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the black-and-white-to-color display screen includes from top to bottom: an upper polarizer, a liquid crystal glass, a polymer coating layer, a color ink layer, a lower polarizer, and Backlight. The black and white to color display screen is made through the following process:

[0066] Spraying colored printing ink onto one side of the liquid crystal glass to form a colored ink layer;

[0067] Attach the bottom surface of the upper polarizer and the top surface of the lower polarizer to the two sides of the liquid crystal glass respectively, and the colored ink layer is located between the liquid crystal glass and the lower polarizer;

[0068] Attach the backlight panel to the lower bias film.

[0069] Similarly, the adhesion of the color ink layer on the liquid crystal glass is not good, and it is easy to fall off, resulting in a low yield rate, which cannot meet the requirem...

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Abstract

The invention discloses a process method for realizing color display on a black and white screen. The process method comprises the following steps: laminating liquid crystal glass and a polaroid; spraying color printing ink; pretreating the liquid crystal glass or the polaroid, wherein the pretreatment comprises the following steps: coating a polymer coating on the position where the color printing ink is sprayed on the liquid crystal glass or the polaroid; and curing the polymer coating. The invention further provides a black-and-white-to-color display screen manufactured through the process method. According to the method, the existing color display process of the black and white liquid crystal screen is thoroughly changed, the cost can be greatly reduced, the production efficiency can be improved, and the method is good in practicability, easy to popularize and apply and high in value.

Description

technical field [0001] The invention relates to the field of display screens, in particular to a process method for realizing color display on a black and white screen. Background technique [0002] Because of its high contrast ratio and wide viewing angle, liquid crystal displays are used in high, medium and low-end equipment, such as car display screens, audio display screens, and high-end instrumentation display screens. Existing black-and-white liquid crystal screen realizes the mode of color display (such as automobile speed display panel, fuel gauge display panel etc.) is to realize by adding a layer of film with silk screen printing color ink again below the liquid crystal display module. This method solves the problem of black and white screen color display, but it has the following disadvantages: [0003] 1. Usually, color film screen printing has 6-8 colors, and the color changes gradually from dark to light, and the effect of gradual change needs to be achieved b...

Claims

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Application Information

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IPC IPC(8): B41J2/21B41J3/407
CPCB41J2/21B41J3/407
Inventor 刘泽明刘品刚
Owner SHENZHEN ELECHEM TECH LTD
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