Liquid crystal display device

一种液晶显示装置、选择反射的技术，应用在光学、仪器、非线性光学等方向，能够解决部件结构复杂等问题，达到改善正面亮度的效果

Active Publication Date: 2016-03-30
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, this optical sheet component has a complex structure, and if it is to be popularized in the market, it is necessary to further integrate the functions of the components and reduce the number of components to achieve cost reduction.

Method used

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  • Liquid crystal display device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0254]

[0255] A commercially available cellulose acylate film "TD60" (manufactured by FUJIFILM Corporation) was used as the front side polarizing plate protective film of the backlight side polarizing plate.

[0256] A cellulose acylate-based film "TD60" (manufactured by FUJIFILM Corporation) was used as the rear polarizing plate protective film of the backlight side polarizing plate.

[0257] The same method as [0219] to [0220] of Japanese Patent Laid-Open No. 2006-293275 is used to manufacture a polarizer, and the above two polarizer protective films are attached to both sides of the polarizer respectively to manufacture a polarizer 1 .

[0258]

[0259] (Formation of dielectric multilayer film)

[0260] Referring to IDW / AD'12, p.985~988 (2012), the total thickness is changed to 5 μm so that the reflection center wavelength corresponding to the peak of the maximum reflectance in the wavelength range of UV light becomes 365 nm and the half width is 30 nm, To manufactu...

Embodiment 2

[0274]

[0275] Referring to IDW / AD'12, p.985-988 (2012), except that the total thickness was changed to 3 μm, a dielectric multilayer Layer 2-B. A dielectric multilayer film 1-B was formed by the same method as that of the dielectric multilayer film 1-A used in Example 1.

[0276] On the polarizing plate 1 , a UV reflective dielectric multilayer film 2 -B and a UV reflective dielectric multilayer film 1 -B were bonded sequentially in the same manner as in Example 1.

[0277] In Example 1, except that the UV reflective dielectric multilayer films 2-B and 1-B formed above are arranged instead of the polarizing plate 1 having the UV reflective dielectric multilayer films 2-A and 1-A arranged on the rear side. Except for the polarizing plate 1 on the rear side, the liquid crystal display device of Example 2 was produced in the same manner as in Example 1.

Embodiment 3

[0279]

[0280] (Formation of light reflection layer fixed by cholesteric liquid crystal phase)

[0281] On the support, refer to FUJIFILM Research Report No.50 (2005) pp.60-63, change the amount of chiral agent added, and form by coating a light reflection layer fixed by a cholesteric liquid crystal phase 1 story. The obtained light reflection layer in which the cholesteric liquid crystal phase was immobilized was referred to as UV reflection CLC1 (left-handed circularly polarized light reflection).

[0282] In the UV reflection CLC1 (left-handed circularly polarized light reflection), in addition to changing the type of chiral agent used to form a left-helical cholesteric liquid crystal structure, the formation of the UV reflection CLC1 (left-handed circularly polarized light reflection) In the same manner, one layer was formed by applying a light reflection layer fixed with a cholesteric liquid crystal phase. The obtained light reflection layer in which the cholesteric ...

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Abstract

A liquid crystal display device in which a backlight unit, a light conversion member, a selective reflection member, a liquid crystal cell and a display-side polarizer are arranged in this order is provided. The backlight unit is provided with a light source that emits non-polarized light which has a luminescence center wavelength of 300 nm or more but less than 430 nm; the selective reflection member reflects 60-100% of the non-polarized light incident thereon and transmits light of 430-650 nm; and the light conversion member contains an oriented fluorescent material that emits, by means of the non-polarized light incident on the light conversion member, blue light that has a luminescence center wavelength of 430-480 nm and is linearly polarized parallel to the absorption axis of the display-side polarizer, green light that has a luminescence center wavelength of 500-600 nm and is linearly polarized parallel to the absorption axis of the display-side polarizer, and red light that has a luminescence center wavelength of 600-650 nm and is linearly polarized parallel to the absorption axis of the display-side polarizer. This liquid crystal display device has improved front luminance.

Description

technical field [0001] The invention relates to a liquid crystal display device. Specifically, it relates to a liquid crystal display device with improved front brightness. Background technique [0002] Liquid crystal display devices (hereinafter, also referred to as LCDs) are increasingly used as image display devices that consume less power and save space. A liquid crystal display device has a structure in which a backlight (hereinafter also referred to as BL), a backlight-side polarizing plate, a liquid crystal cell, a display-side polarizing plate, and the like are sequentially provided. [0003] In recent years, in liquid crystal display devices, developments aimed at improving LCD performance for power saving, high-definition, and color reproducibility have been promoted, and power saving is particularly required for small sizes such as tablet PCs and smartphones. In the current situation of high-definition and improved color reproduction, the current TV standard (FH...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02B5/26G02B5/30G02F1/13357
CPCG02B5/26G02B5/3025G02F1/13362G02F1/133536G02F1/133605G02F1/133614G02F1/133528G02F1/133553
Inventor 实藤龙二大室克文
Owner FUJIFILM CORP
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