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Liquid crystal display

A technology of liquid crystal display and liquid crystal display panel is applied to LCD. It can solve problems such as low anisotropy and low polarity

Inactive Publication Date: 2003-04-23
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, compared with urea-based polarizers, this dye-based polarizer has low polarity due to the low anisotropy of the dye itself, but is highly resistant to environments with high temperature and high humidity

Method used

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Embodiment Construction

[0028] Now, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0029] image 3 is a simplified cross-sectional view of an LCD according to an embodiment of the present invention.

[0030] see image 3 , an upper substrate (or first substrate) having a polarizer (or first polarizer) 140 bonded to its outer surface (or first substrate) is provided on the visible side (observer side) of the LCD. The first substrate includes a first transparent substrate 102 . On the inner surface of the first transparent substrate 102, a pixel electrode 104 and a switching element for switching the pixel electrode 104, such as a thin film transistor (TFT), are formed. An upper alignment film (or first alignment film) is formed under the pixel electrode 104 and the switching element.

[0031] The lower substrate (or second substrate) is arranged facing the first substrate. The lower substrate includes a second transparent ...

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Abstract

An ultra slimmed LCD capable of being applied to a hand-held terminal such as a cellular phone is disclosed. In said LCD, a first substrate includes a pixel electrode. A switching element is formed on an inner surface of the first substrate, and turns on or off the pixel electrode. A first polarizing plate is attached on an outer surface of the first substrate. A second substrate faces the first substrate, and includes a color filter layer for displaying a color image. A common electrode is formed on the color filter layer. The second substrate converts a linear light input through one side face of the second substrate into a planar light. A liquid crystal layer is interposed between the first substrate and the second substrate. A second polarizing plate is arranged between the liquid crystal layer and the second substrate, and converts the planar light converted through the second substrate into a light vibrating in a predetermined direction. The second polarizing plate includes a polyvinyl alcohol layer of polymer polarization medium arranged at a middle layer, and two supporter layers of triacetyl cellulose arranged at upper and lower outer faces of the polyvinyl alcohol layer, respectively.

Description

technical field [0001] The present invention relates to a liquid crystal display (LCD), and more particularly to an LCD in which a light guide plate can be removed from the LCD panel and a polarizer is placed in the LCD panel. Background technique [0002] In general, LCDs are widely used as portable information terminals due to their small thickness and light weight. The LCD panel is a passive device that does not emit light itself, and has a reflector on its rear side. As such LCD panels, there are reflection type LCD panels, projection type LCD panels, and semi-projection type LCD panels using external light as a light source. Each of the projection type LCD panel and the semi-projection type LCD panel has a backlight assembly on its rear side. [0003] Because the LCD panel can be driven at a very low voltage, such as a few volts, the reflective LCD has low power consumption, but it cannot be used in a dark environment. In addition, since a co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333G02F1/1335G02F1/13357
CPCG02F1/1333G02F1/133528G02F1/133615G02F2001/133565G02F1/133565G02F1/1335
Inventor 山村信幸
Owner SAMSUNG DISPLAY CO LTD