Unlock instant, AI-driven research and patent intelligence for your innovation.

Liquid crystal display device having wide viewing angle

一种液晶显示装置、液晶显示板的技术，应用在光学、仪器、非线性光学等方向，能够解决没有提高屏幕视角特性等问题，达到改善视角特性的效果

Active Publication Date: 2010-07-07
LG DISPLAY CO LTD
View PDF0 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, in the IPS mode LCD device, the liquid crystal molecules are rotated to the same extent along the lateral field to prevent the gray level inversion due to the refractive anisotropy of the liquid crystal molecules, thereby improving the vertical (up and down) direction or Viewing angle characteristics in the horizontal (left and right) direction without improving the viewing angle characteristics in the diagonal direction of the screen

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Liquid crystal display device having wide viewing angle
  • Liquid crystal display device having wide viewing angle
  • Liquid crystal display device having wide viewing angle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] A detailed description of the present invention will be given below with reference to the accompanying drawings.

[0040] The decrease in viewing angle characteristics when viewing the LCD device in a diagonal direction is due to light leakage in the diagonal direction of the LCD device. This will be described in more detail below.

[0041] Such as figure 2 As shown, a first polarizer 152 and a second polarizer 154 are attached to upper and lower portions of a liquid crystal (LC) panel 101 of a typical IPS mode LCD device to linearly polarize input and output light from the LC panel 101 .

[0042] In the normally black mode, the polarization axes of the first polarizing plate 152 and the second polarizing plate 154 attached to the upper and lower substrates are perpendicular to each other. Accordingly, the light transmitted through the first polarizing plate 152 is linearly polarized in the x-axis direction, and then is incident into the LCD device. When no signal i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
visible light transmittanceaaaaaaaaaa
Login to View More

Abstract

Disclosed is a liquid crystal display device having a wide viewing angle, in which compensation films are disposed between a liquid crystal display panel and polarizers to change a polarized state of light, which is incident on the liquid crystal display panel and output therefrom through the polarizers, thereby preventing light from being leaked in a diagonal direction of the liquid crystal display device in a normally black mode.

Description

technical field [0001] The present invention relates to a liquid crystal display (LCD) device, and more particularly, to an LCD device capable of improving viewing angle characteristics by employing a plurality of biaxial optical films. Background technique [0002] In recent years, the development of various portable electronic devices such as mobile phones, personal digital assistants (PDAs), and notebook computers has increased the demand for flat panel displays, which can be applied to these devices and are small in size, light in weight, and energy efficient. efficient. Examples of flat panel displays are liquid crystal display (LCD) devices, plasma display panel (PDP) devices, field emission display (FED) devices, vacuum fluorescent display (VFD) devices, and the like. Research on these devices is actively underway. Among them, LCD devices are currently attracting attention in view of their mass production technology, convenience of a driving scheme, and realization ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13363G02B5/30
CPCG02F2202/40G02F2413/02G02F1/133634G02F1/134363G02F2413/12G02F2413/11G02F1/13363G02F1/1335
Inventor 文钟源申洸勋
Owner LG DISPLAY CO LTD