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Integrated polarizer film and liquid crystal display integrated with the same polarizer film

一种液晶显示装置、偏振器的技术，应用在仪器、光导、光学等方向，能够解决无法形成、难扩散效果、难以获得明亮度或亮度等问题，达到消除亮度缺陷的效果

Active Publication Date: 2017-06-09
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to make the optical sheets thinner, each sheet tends to be tightly bonded to each other so that the air layer cannot be formed properly or at all
In this case, since the air layer (or air gap) is removed, it is difficult to obtain a diffusion effect through the air layer, and then it is difficult to obtain a uniformly distributed brightness or brightness

Method used

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  • Integrated polarizer film and liquid crystal display integrated with the same polarizer film
  • Integrated polarizer film and liquid crystal display integrated with the same polarizer film
  • Integrated polarizer film and liquid crystal display integrated with the same polarizer film

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0054] Reference Figure 5 to Figure 7 , We will explain the first embodiment of the present disclosure. Figure 5 Is a cross-sectional view showing the structure of a liquid crystal display having a lower polarizer film embedded with a light diffusion layer according to the first embodiment of the present disclosure. Image 6 Is a cross-sectional view showing the structure of the lower polarizer film embedded in the light diffusion layer according to the first embodiment of the present disclosure. Figure 7 Is a cross-sectional view showing the structure of the prism sheet included in the liquid crystal display according to the first embodiment of the present disclosure.

[0055] Reference Figure 5 The liquid crystal display according to the first embodiment of the present disclosure includes a liquid crystal panel LCP, an upper polarizer film UPOL, and a lower polarizer film TPOL embedded with a light diffusion layer (light diffusion layer embedded lower polarizer film). The li...

no. 2 approach

[0068] In the following, refer to Picture 8 , We will explain the second embodiment of the present disclosure. Picture 8 Is a cross-sectional view showing the structure of the optical sheet integrated liquid crystal display according to the second embodiment of the present disclosure. In the first embodiment, the diffusion film DIF or the dual brightness enhancement film DBEF is removed, but the lower polarizer sheet TPOL with a light diffusion layer is used, so an ultra-thin liquid crystal display can be provided. In the second embodiment, by integrating or bonding the upper prism sheet PRU to the lower prism sheet TPOL embedded with the light diffusion layer, a thinner liquid crystal display is provided.

[0069] Reference Picture 8 Most of the elements of the liquid crystal display according to the second embodiment are very similar to those of the first embodiment. Therefore, meaningless explanations about the same elements will not be repeated. The most important point i...

no. 3 approach

[0078] In the following, refer to Picture 9 , We will explain the third embodiment of the present disclosure. Picture 9 Is a cross-sectional view showing the structure of the optical sheet integrated liquid crystal display according to the third embodiment of the present disclosure.

[0079] In the second embodiment, we propose a structure of a liquid crystal display in which an upper prism sheet PRU is integrated with a lower polarizer film TPOL embedded with a light diffusion layer through an adhesive layer ADH. On the adhesive layer ADH, the substrate BS of the lower polarizer film TPOL in which the light diffusion layer is embedded is attached. Therefore, at the interface between the adhesive layer ADH and the substrate BS, the backlight may be reflected, so that the light transmittance may be reduced.

[0080] In the third embodiment, we propose a structure of an optical sheet in which (prevents) deterioration of light transmittance and / or brightness at the interface between...

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Abstract

The present disclosure relates to an integrated polarizer film and a liquid crystal display integrated with the same polarizer film. The liquid crystal panel according to the present disclosure comprises: a liquid crystal panel; an upper polarizer film having a first light transmission axis and disposed on a top surface of the liquid crystal panel; a light diffusion layer embedded lower polarizer film having a second light transmittance axis and disposed on a bottom surface of the liquid crystal panel; and an upper prism sheet laminated under the bottom surface of the light diffusion layer embedded lower polarizer film by a low refractive adhesive layer, and including a prism pattern having a first prism pattern and a second prism pattern smaller than the first prism pattern, wherein topmost portions of the first prism pattern are immersed into the low refractive adhesive layer, wherein the upper prism sheet is combined with the light diffusion layer embedded lower polarizer film, and wherein an air layer is inserted between the low refractive adhesive layer and the second prism pattern.

Description

Technical field [0001] The present disclosure relates to an integrated polarizer film and a liquid crystal display (LCD) integrated with the polarizer film. In particular, the present disclosure relates to an LCD in which an optical sheet for enhancing the uniformity and convergence of the backlight supplied from the backlight unit is combined (or integrated) with the lower polarizer film. Background technique [0002] Nowadays, due to the characteristics of light weight, thin thickness, and low power consumption, liquid crystal display devices (LCD) are more and more widely used. LCD is used in portable computers such as notebook computers, office automation devices, audio / video devices, etc. The most commonly used LCD displays image data by controlling the electric field applied to the liquid crystal layer to adjust the emission of light incident from the backlight unit. [0003] Since the liquid crystal display device is not a self-luminous element, the liquid crystal display ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335
CPCG02F1/133504G02F1/133528G02B6/0053G02B6/0056G02F1/133606G02F2202/28G02F1/133607
Inventor 鱼润净朴世全
Owner LG DISPLAY CO LTD
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