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Liquid crystal display panel and liquid crystal display device using same

A liquid crystal display panel and substrate technology, applied in static indicators, nonlinear optics, instruments, etc., can solve problems such as limited slit effect, light leakage, and reduced transmittance

Inactive Publication Date: 2011-06-29
WINTEK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, when the driving voltage is zero, the alignment of the liquid crystals is not completely vertical, so there will be some light leakage due to the tilt of the liquid crystals at the front viewing angle.
[0004] As for the way of using slits to achieve multiple display domains, the alignment error of the upper and lower substrates, the width of the slit itself, and the distance between the slits must be considered, otherwise the effect of the slits is limited, and the display directly above the slits There will be a dislocation phenomenon of liquid crystal molecules between two adjacent slits, which will reduce the overall transmittance

Method used

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  • Liquid crystal display panel and liquid crystal display device using same
  • Liquid crystal display panel and liquid crystal display device using same
  • Liquid crystal display panel and liquid crystal display device using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Please refer to Figure 2A , 2B , Figure 2AA schematic diagram showing the pixel structure of the liquid crystal display panel of the first embodiment, Figure 2B draw Figure 2A The cross-sectional view of the liquid crystal display panel along the line 2B-2B'. Such as Figure 2A As shown, the pixel unit P includes a first pixel electrode PE1, a second pixel electrode PE2, and a switching element T. As shown in FIG. The first pixel electrode PE1 is adjacent to the second pixel electrode PE2, and the scanning line SL is arranged corresponding to the gap between the first pixel electrode PE1 and the second pixel electrode PE2. The switching element T has an input terminal S (source), a controlled terminal G (gate) and output terminals D1, D2 (drain), wherein the input terminal S is coupled to the data line DL, and the controlled terminal G is coupled to For the scan line SL, the output terminal D1 is coupled to the first pixel electrode PE1, and the output termina...

Embodiment 2

[0077] The difference between the second embodiment and the first embodiment lies in the structural design of the alignment electrodes, and the same component numbers are used for the same components, and will not be repeated here. Please refer to Figure 5 , which shows a schematic diagram of the pixel structure of the second embodiment. The first alignment electrode AE1' in the pixel unit P has a connected main electrode AE11' and a branch electrode AE12', and the second alignment electrode AE2' has a connected main electrode AE21' and a branch electrode AE22'. The branch electrodes AE11' and AE21' are respectively disposed corresponding to the edges of the first pixel electrode PE1' and the second pixel electrode PE2'. The first pixel electrode PE1' and the second pixel electrode PE2' respectively have elongated openings PE1A' and PE2A', and the branch electrodes AE12' and AE22' are respectively provided corresponding to the elongated openings PE1A' and PE2A'. Preferably,...

Embodiment 3

[0081] The difference between the third embodiment and the first embodiment lies in the structural design of the first substrate, and the same component numbers are still used for the same components, and will not be repeated here. Please refer to Figure 6A , 6B , Figure 6A A schematic diagram showing the pixel structure of the liquid crystal display panel of the third embodiment having a reflective part, Figure 6B draw Figure 6A The sectional view of the liquid crystal display panel along the tangent line 6B-6B'. Such as Figure 6A , 6B As shown, the structure of the pixel unit P further includes a reflective portion 160 , which is disposed corresponding to the gap between the first pixel electrode PE1 and the second pixel electrode PE2 . The reflective part 160 is used to reflect the ambient light source for display purposes. In this way, the pixel unit P has semi-transmissive and semi-reflective properties. Preferably, the reflective portion 160 is a trapezoidal ...

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Abstract

The invention discloses a liquid crystal display panel and a liquid crystal display device using the same. The liquid crystal display panel comprises oppositely arranged first and second substrates, wherein a liquid crystal layer is arranged between the two substrates. The first substrate is provided with a plurality of pixel units. Each pixel unit comprises a data wire, a scanning wire, a switching element, a first pixel electrode, a second pixel electrode, a first alignment electrode and a second alignment electrode. The first and second pixel electrodes are adjacently arranged and the scanning wire is arranged correspondingly to the clearance between the first and second pixel electrodes. The switching element is provided with an input end, a controlled end, a first output end and a second output end. The input end is coupled to the data wire; the controlled end is coupled to the scanning wire; the first output end is coupled to the first pixel electrode; and the second output end is coupled to the second pixel electrode. The first and second alignment electrodes are arranged along the edges of the first and second pixel electrodes respectively and receive the voltage of a common electrode.

Description

technical field [0001] The present invention relates to a liquid crystal display panel and a liquid crystal display device using the same, and in particular to a liquid crystal display panel with multi-display domain effect and a liquid crystal display device using the same. Background technique [0002] At present, liquid crystal display devices with multi-domain to achieve wide viewing angle effects usually make protrusions (protrusion / bump) or slits (slit) between the upper and lower substrates of the display device to Control the inversion of liquid crystal molecules. Generally speaking, the bumps are fabricated on the electrodes, while the slits are formed by directly patterning the electrodes. [0003] Although the effect of multi-display domains can be achieved by using the bumps, since the beveled sides of the bumps will generate boundary energy to the liquid crystals, the alignment direction of the liquid crystals is no longer perpendicular to the substrate, but th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1362G02F1/133G09G3/36
Inventor 王文俊苏国彰
Owner WINTEK CORP
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