Pixel structure, display panel and manufacturing method of pixel structure
a technology of pixel structure and manufacturing method, which is applied in the manufacture of electrode systems, electric discharge tubes/lamps, instruments, etc., can solve the problems of poor display image quality and considerable cross talk phenomenon, and achieve the effect of reducing the cross talk phenomenon of pixel structure and good display quality
Active Publication Date: 2015-03-19
AU OPTRONICS CORP
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Benefits of technology
The invention provides a pixel structure and a manufacturing method that reduces cross talk between data lines and pixel electrodes, resulting in improved display quality. A portion of the common electrode is placed between the data line and the pixel electrode, acting as an electrical shielding layer. The technical effect is reduced interference between data lines and pixel electrodes, resulting in improved display quality.
Problems solved by technology
As a result, when the data line and the drain electrode are fabricated at the same time and are located on the same level as the pixel electrode, parasitic capacitance between the data line and the pixel electrode causes considerable cross talk phenomenon.
For instance, during operation of the pixel structure, a signal on the data line may interfere with the electric potential of the pixel electrode such that the electric potential of the pixel electrode is unstable, thereby affecting the driving state of the liquid crystal molecules and causing poor quality of the display image.
Method used
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[0019]FIG. 1A to FIG. 1F are schematic top views of a manufacturing process of a pixel structure of an embodiment of the invention. FIG. 2A to FIG. 2F are respectively cross-sectional views along cutting-plane line A-A′ and cutting-plane line B-B′ of FIG. 1A to FIG. 1F. Referring to FIG. 1A and FIG. 2A, first, a scan line 104 is formed on a first substrate 102. Moreover, a gate electrode 106 can also be formed at the same time, and the scan line 104 is electrically connected to the gate electrode 106. The material of each of the scan line 104 and the gate electrode 106 includes an alloy, a metal material, metal nitride, metal oxide, metal nitrogen oxide, a transparent conductive material, other conductive materials, or a stacked layer of the materials.
[0020]Referring to FIG. 1B and FIG. 2B, first, a first insulation layer 108 is formed on the first substrate 102. The first insulation layer 108 covers a portion of the first substrate 102 and the scan line 104. The material of the fir...
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Abstract
A pixel structure includes a scan line, a first insulation layer, a data line, a pixel electrode, a second insulation layer, and a common electrode. The scan line and the first insulation layer are disposed on a first substrate and the first insulation layer covers the scan line. The data line and the pixel electrode are disposed on the first insulation layer. The second insulation layer covers the data line and the pixel electrode and has a first opening located between the data line and the pixel electrode. The common electrode is disposed on the second insulation layer and has slits exposing a portion of the pixel electrode. The common electrode covers the data line and has a first extending portion filled in the first opening such that the first extending portion of the common electrode is located between the data line and the pixel electrode.
Description
CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority benefit of Taiwan application serial no. 102133501, filed on Sep. 16, 2013. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The invention relates to a pixel structure, a manufacturing method thereof, and a display panel, and more particularly, to a pixel structure having low parasitic capacitance, a manufacturing method thereof, and a display panel including the pixel structure.[0004]2. Description of Related Art[0005]Generally, liquid crystal molecules in a liquid crystal display (LCD) panel can be driven through a vertical electric field or a lateral electric field. Examples of a display medium driven by the vertical electric field include a twisted nematic (TN) LCD panel and a vertical alignment (VA) LCD panel. Examples of a display medium driven by t...
Claims
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IPC IPC(8): G02F1/1333G02F1/1343
CPCG02F1/134336G02F1/133345G02F1/134363G02F1/134372
Inventor PENG, YAN-YULEE, HSING-LUNG
Owner AU OPTRONICS CORP