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Transflective type liquid crystal display device

A liquid crystal display, transflective technology, used in static indicators, instruments, nonlinear optics, etc.

Inactive Publication Date: 2011-03-30
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] At the same time, since the coating layer has a gap difference in the transmission part and the reflection part, when depositing an alignment layer on the entire surface of the substrate containing the coating layer and performing the rubbing process Friction defects may occur when

Method used

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  • Transflective type liquid crystal display device
  • Transflective type liquid crystal display device
  • Transflective type liquid crystal display device

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Experimental program
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Effect test

no. 1 approach

[0049]2 shows a cross-sectional view of a VA mode transflective LCD device according to a first embodiment of the present invention. FIG. 3A shows a plan view of a common electrode formed in a reflection portion of the transflective LCD device of FIG. 2 . FIG. 3B shows a plan view of a pixel electrode formed in a reflection portion of the transflective LCD device of FIG. 2 . FIG. 3C shows a plan view of the common electrode and the pixel electrode in FIGS. 3A and 3B bonded to each other.

[0050] As shown in FIG. 2 , the transflective LCD device according to the first embodiment of the present invention includes: first and second substrates 100 and 110 opposed to each other; and liquid crystal formed between the first and second substrates 100 and 110 Layer 150. Then, each pixel is divided into a reflection part and a transmission part. Meanwhile, a backlight unit (not shown) is located under the first substrate 100 .

[0051] The first substrate 100 is equivalent to a thi...

no. 2 approach

[0066] 6 shows a cross-sectional view of a VA mode transflective LCD device according to a second embodiment of the present invention.

[0067] According to the second embodiment of the present invention, the VA mode transflective LCD device is similar in structure to the VA mode transflective LCD device according to the first embodiment of the present invention, except that: as shown in FIG. 6A , in the transflective LCD device A first opening pattern 115a of slits or holes is formed in part of the common electrode 114 and in the pixel electrode 104, as shown in FIG. 6A . That is, the first opening pattern 115 a of the pixel electrode 104 is also applied to the common electrode 114 . In the same mode as the VA mode transflective LCD device according to the first embodiment of the present invention, the VA mode transflective LCD device according to the second embodiment of the present invention includes a second opening formed in the reflection portion of the common electrode ...

no. 3 approach

[0069] 7 shows a cross-sectional view of a VA mode transflective LCD device according to a third embodiment of the present invention.

[0070] The VA mode transflective LCD device according to the third embodiment of the present invention is similar in structure to the VA mode transflective LCD device according to the first embodiment of the present invention, except that as shown in FIG. A plurality of protrusions 116 are formed on the electrode 114 to divide the unit pixel into a plurality of domains. In the same pattern as the VA mode transflective LCD device according to the first embodiment of the present invention, the VA mode transflective LCD device according to the third embodiment of the present invention includes a second The opening pattern 115b.

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Abstract

A transflective type LCD device including a unit pixel region divided into reflective and transmitting parts includes first and second substrates facing each other, a pixel electrode in the pixel region of first substrate, a reflective sheet in the reflective part of first substrate, a common electrode on the second substrate, at least one first open pattern for forming multi-domains, and the first open pattern in at least one of the pixel and common electrodes, and a plurality of second open patterns for inducing a fringe field, and the second open patterns in the reflective part of at leastone of the pixel and common electrodes.

Description

[0001] This application claims the benefit of Korean Patent Application No. P2007-24267 filed March 13, 2007, the entire contents of which are incorporated herein by reference. technical field [0002] The present invention relates to a liquid crystal display (LCD) device, and more particularly, to a transflective type (transmission-reflection type) LCD device to solve problems arising in a double cell gap. Background technique [0003] Generally, LCD devices are driven by optical anisotropy and polarization of liquid crystals. Since each liquid crystal molecule has a thin and long shape, the liquid crystal molecules are aligned with directional properties. In this regard, an induced electric field is applied to the liquid crystal, thereby controlling the alignment direction of the liquid crystal molecules. [0004] Therefore, if the alignment direction of the liquid crystal molecules is controlled by the induced electric field, the light can be polarized and changed by the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1343G02F1/133
CPCG02F1/133514G02F1/133555G02F1/134309G02F1/1368G02F2201/123G02F1/134318G02F1/134372
Inventor 孙眩镐朴求铉
Owner LG DISPLAY CO LTD