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Manufacturing method of liquid crystal display and liquid crystal display

A technology of liquid crystal display and manufacturing method, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of poor off-state effect, low NTSC, low off-state reflectivity, etc., and achieve improved off-state effect, high NTSC, high contrast effect

Active Publication Date: 2021-04-30
TRULY SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since it is still impossible to have extremely low off-state reflectivity in the red, green, and blue light bands at the same time, reflective LCDs in normally black mode cannot be completely black in the off-state, and the off-state effect is not good. The contrast is low. At the same time, due to the large difference in off-state reflectance between different bands, it has a more serious color shift problem and leads to low NTSC
[0004] Similarly, the off-state transmittance of a normally black mode transmissive LCD can only reach an extremely low value in a certain band, and the off-state reflectance of a normally white mode reflective LCD can only reach a certain band. The off-state transmittance of the normally white mode transmissive LCD can only reach a very high value in a certain band

Method used

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  • Manufacturing method of liquid crystal display and liquid crystal display
  • Manufacturing method of liquid crystal display and liquid crystal display
  • Manufacturing method of liquid crystal display and liquid crystal display

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0033] Such as image 3 Shown, a kind of manufacturing method of liquid crystal display comprises:

[0034] Step 1: Based on the off-state emission spectra of multiple common liquid crystal displays and their corresponding cell thicknesses, an off-state emission spectrum-cell thickness correlation model is established;

[0035] In this step 1, the cell thickness refers to the thickness of the liquid crystal layer 3 in the liquid crystal display.

[0036] The off-state emission spectrum refers to the emission rate curves in different bands after the light passes through an unpowered liquid crystal display (the normally black mode is the black state, and the normally white mode is the white state), including the off-state reflectance curve and the off-state reflectance curve. The off-state transmittance curve, because the off-state reflectance curve and the off-state transmittance curve can be converted to each other through a certain value, the off-state reflectance curve can ...

Embodiment 2

[0071] Such as Figure 4 with 5 As shown in a liquid crystal display, the side of the color filter substrate 1 facing the liquid crystal layer 3 is at least two of the R region corresponding to the R sub-pixel, the G region corresponding to the G sub-pixel, and the B region corresponding to the B sub-pixel. Each area has different heights, and the side of the array substrate 2 facing the liquid crystal layer 3 is in at least two areas of the R area corresponding to the R sub-pixel, the G area corresponding to the G sub-pixel, and the B area corresponding to the B sub-pixel. have different heights to have a first cell thickness h1 in the R region, a second cell thickness h2 in the G region and a third cell thickness h3 in the B region.

[0072] In a specific embodiment, such as Figure 4 As shown, at least two of the R sub-pixels, G sub-pixels and B sub-pixels of the RGB color filter layer 12 of the color filter substrate 1 have different ink thicknesses, so that the color fi...

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Abstract

The invention discloses a manufacturing method of a liquid crystal display, comprising: step 1: establishing an off-state emission spectrum-cell thickness correlation model; step 2: calculating the required R-band off-state emission rate and G-band off-state emission rate respectively rate and the B-band off-state emission rate, corresponding to the first cell thickness, the second cell thickness and the third cell thickness; Step 3: make the required liquid crystal display, the required liquid crystal display has the first cell thickness, There is a second cell thickness in the G region and a third cell thickness in the B region. The manufacturing method can control the desired liquid crystal display to have the required off-state emission rate in the red light band, blue light band and green light band at the same time, can improve the off-state effect of the liquid crystal display, and achieve high contrast, high NTSC, and low color partial purpose. The invention also provides a liquid crystal display.

Description

technical field [0001] The invention relates to display technology, in particular to a manufacturing method of a liquid crystal display and a liquid crystal display. Background technique [0002] At present, due to the dispersion of liquid crystal molecules and polarizers, the off-state emission rate of liquid crystal displays can only reach an extreme value in a certain wavelength band. [0003] Take the reflective liquid crystal display in normally black mode as an example, such as figure 1 with 2 As shown, when the thickness of the cell is R1, the off-state reflection spectrum of the liquid crystal display is shown by the solid line LC_R1. The reflectivity is high; when the thickness of the cell is R2, the off-state reflectance spectrum of the liquid crystal display is shown by the solid line LC_R2, and its off-state reflectance in the green light band is extremely low, but in the blue and red light bands The off-state reflectance of the liquid crystal display is high;...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13
CPCG02F1/1303
Inventor 李林吴振忠辛杰萍任保涛柳发霖
Owner TRULY SEMICON