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Manufacturing method of liquid crystal display and liquid crystal display

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

Active Publication Date: 2018-12-18
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
Effect test

Embodiment 1

[0033] Such as image 3 As shown, a manufacturing method of a liquid crystal display includes:

[0034] Step 1: Establish the off-state emission spectrum-cell thickness correlation model based on the off-state emission spectra of multiple ordinary liquid crystal displays and their corresponding cell thicknesses;

[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 curve of light at different wavelength bands after passing through an unpowered liquid crystal display (normally black mode is black state, and normally white mode is white state), including off-state reflectance curves and off-state reflectance curves. The off-state transmittance curve, because the off-state reflectance curve and off-state transmittance curve can be converted to each other through a certain value, the off-state reflectivity curve can also be expressed by the off-state ...

Embodiment 2

[0071] Such as Figure 4 with 5 As shown, a liquid crystal display whose color filter substrate 1 faces the liquid crystal layer 3 in at least two 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. 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 They have different heights to have a first cell thickness h1 in the R area, a second cell thickness h2 in the G area, and a third cell thickness h3 in the B area.

[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 filter substrate 1 faces the...

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PUM

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Abstract

The invention discloses a manufacturing method of a liquid crystal display. The method comprises the following steps: step 1, establishing an off state exiting spectrum-cell gap related model; step 2,calculating respectively corresponding first cell gap, second cell gap and third cell gap when reaching the needed R wave band off state exitance, G wave band off state exitance and B wave band off state exitance; step 3, manufacturing the needed liquid crystal display, wherein the needed liquid crystal display comprises the first cell gap at a R region, the second cell gap at a G region and thethird cell gap at a B region. The manufacturing method can control the needed liquid crystal display to simultaneously have the needed off state exitance on a red light wave band, a blue light wave band and a green light wave band, can improve off state effects of the liquid crystal display and realizes an aim of high contrast, high NTSC and low color cast. The invention also provides a liquid crystal display.

Description

Technical field [0001] The invention relates to display technology, in particular to a method for manufacturing a liquid crystal display and a liquid crystal display. Background technique [0002] At present, due to the dispersion problems of liquid crystal molecules and polarizers, the off-state emission rate of liquid crystal displays can only reach an extreme value within 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 cell thickness is R1, the off-state reflectance spectrum of the liquid crystal display is shown by the solid line LC_R1. Its off-state reflectivity in the red band is extremely low, but the off-state in the blue and green bands The reflectivity is high; when the cell thickness is R2, the off-state reflectance spectrum of the liquid crystal display is shown by the solid line LC_R2, and its off-state reflectivity in the green band is extremely low, but in ...

Claims

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Application Information

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Patent Type & Authority Applications(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