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Liquid crystal display and angle-of-field control panel

一种液晶显示装置、液晶显示面板的技术，应用在光学、仪器、非线性光学等方向，能够解决视野角窄等问题

Inactive Publication Date: 2009-06-10
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, depending on the usage environment, there may be cases where a narrow viewing angle is suitable only for the user himself to see the displayed content.

Method used

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  • Liquid crystal display and angle-of-field control panel
  • Liquid crystal display and angle-of-field control panel
  • Liquid crystal display and angle-of-field control panel

Examples

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Embodiment Construction

[0097] according to Figure 1 to Figure 15 One embodiment of the present invention will be described below. In addition, the present invention is not limited thereto.

[0098] In addition, in each drawing referred to below, for the convenience of description, among the constituent members of one embodiment of the present invention, only the main members necessary for the description of the present invention are shown in simplified form. Therefore, the liquid crystal display device of the present invention can include arbitrary components not shown in the drawings referred to in this specification. In addition, the dimensions of the components in the drawings do not faithfully represent the actual dimensions of the constituent components, the dimensional ratios of the respective components, and the like.

[0099] First, according to figure 1 The configuration of the liquid crystal display device 10 of this embodiment will be described. figure 1 It is a cross-sectional vie...

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PUM

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Abstract

A liquid crystal display device (10) of the present invention includes a backlight (3), a display liquid crystal panel (1) and a viewing angle control panel (2) for switching a viewing angle of the display liquid crystal panel (1) between a wide viewing angle mode and a narrow viewing angle mode. The viewing angle control panel (2) includes a control panel upper polarizing plate (22), a liquid crystal cell (21) and a control panel lower polarizing plate (23) stacked in this order, and phase difference plates (24, 25) are provided between the polarizing plates (22, 23) and the liquid crystal cell (21), respectively. The viewing angle control panel (2) is arranged such that Re1 in a white display portion in the wide viewing angle mode is n / 2 (n is an integer of 1 or more), Re2 in a white display portion in the narrow viewing angle mode is n / 2 (n is an integer of 1 or more), and Re3 in a black display portion in the narrow viewing angle mode is n (n is an integer of 1 or more).

Description

technical field [0001] The present invention relates to a viewing angle control panel for switching the viewing angle of a display panel between a wide viewing angle and a narrow viewing angle, and a liquid crystal display device having the viewing angle control panel. Background technique [0002] Display devices are generally required to have as wide a viewing angle as possible so that clear images can be viewed from any viewing angle. In particular, in liquid crystal display devices that have become widely used recently, since liquid crystal itself has viewing angle dependence, various technical developments have been made for widening the viewing angle. [0003] However, depending on the usage environment, there may be cases where a narrow viewing angle is suitable only for the user himself to see the displayed content. In particular, notebook personal computers, portable information terminals (PDA: Personal Data Assistant (personal data assistant)) or mobile phones are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13363G02F1/1347G02F1/139
CPCG02F1/13363G02F2413/08G02F1/1347G02F1/1323G02F2413/04G02F2413/12G02F2413/11G02F2001/133638G02F1/133634G02F1/133638C08J5/18G02F1/1335
Inventor 森下克彦冈崎敢坂井健彦片冈义晴束村亲纪千叶大
Owner SHARP KK