In plane mode-switching LCD device

A liquid crystal display, internal switching technology, applied in instruments, nonlinear optics, optics, etc., can solve problems such as the inability to achieve strong black levels

Inactive Publication Date: 2009-04-08
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, strong black levels cannot be achieved in IPS mode LCD devices

Method used

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  • In plane mode-switching LCD device
  • In plane mode-switching LCD device
  • In plane mode-switching LCD device

Examples

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Embodiment Construction

[0054] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0055] Hereinafter, an IPS mode LCD device according to the present invention will be described with reference to the accompanying drawings.

[0056] Figure 5 is a plan view of an IPS mode LCD device according to the present invention. Figure 6 is along Figure 5 Sectional view of II-II'. Figure 7 is along Figure 5 Sectional view of III-III'.

[0057] Figure 8 is an optical schematic diagram of a reflective part according to the present invention. Fig. 9 shows the change of the polarization state in the transmissive part according to the present invention. Figure 10 is an optical schematic diagram of the transmissive part according to the present invention; Figure 11 The change of the polariza...

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PUM

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Abstract

A liquid crystal display component of surface-internal switching type is prepared as forming delay layer in reflection unit of unit pixel region for effectively controlling transmission mode and reflection mode as well as for improving contrast, setting transmission unit and reflection unit in unit pixel region and making unit gap in transmission unit be basically the same as unit gap in reflection unit.

Description

technical field [0001] The present invention relates to liquid crystal display (LCD) devices, and more particularly, to an in-plane switching (IPS) mode LCD device that improves contrast and efficiently operates reflective and transmissive modes. Background technique [0002] In recent years, liquid crystal display (LCD) devices as flat panel displays have been actively investigated and studied because of their superior characteristics. LCD devices utilize optical anisotropy of liquid crystals to adjust light transmittance and display images. The optical anisotropy of the liquid crystal can be changed by applying an electric field to the liquid crystal, which has both the fluidity of a liquid and optical properties. As a new type of display device capable of replacing a conventional cathode ray tube (CRT) display, LCD devices have drawn widespread attention due to their thin profile, light weight, and low power consumption. [0003] Generally, an LCD device includes a colo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02F1/1337G02F1/1339
Inventor 白钦日
Owner LG DISPLAY CO LTD
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