Pixel unit, coplane conversion type liquid crystal display device and manufacturing method
A technology of liquid crystal display devices and pixel units, which is applied in semiconductor/solid-state device manufacturing, electrical components, semiconductor/solid-state device components, etc., can solve the problems of poor contrast and small aperture ratio of display devices, and achieve reduced area and improved Aperture ratio, effect of improving display quality
Active Publication Date: 2014-02-05
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] The invention solves the problems of poor contrast and small aperture ratio in the prior art coplanar conversion liquid crystal display device
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment approach
[0065] refer to Figure 8 As shown, an embodiment of the pixel unit manufacturing method of the coplanar switching liquid crystal display device of the present invention includes:
[0066] Step s1, forming a first conductive layer on the substrate, and forming scan lines in the first conductive layer;
[0067] Step s2, forming a first dielectric layer on the first conductive layer;
[0068] Step s3, forming a second conductive layer on the first dielectric layer, and forming data lines in the second conductive layer;
[0069] Step s4, forming a second dielectric layer on the second conductive layer;
[0070] Step s5, forming a third conductive layer on the second dielectric layer, and forming a pixel electrode in the third conductive layer, wherein,
[0071] Common corresponding surfaces of the first conductive layer, the second conductive layer, and the third conductive layer respectively constitute the lower electrode, the middle electrode, and the upper electrode of the ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a pixel unit, a coplane conversion type liquid crystal display device and a manufacturing method. The pixel unit is defined by a adjacent scanning line and an adjacent data line which are configured on a substrate and are intersected with each other, the pixel unit comprises a transistor and a memory capacitor, wherein the transistor is configured on the substrate, the grid of the transistor is connected with the scanning line, the source of the transistor is connected with the data line and the drain of the transistor is connected with a pixel electrode; and the memory capacitor is formed by a lower electrode, a middle electrode, an upper electrode and medium layers among the electrodes, and the lower electrode, the middle electrode and the upper electrode of the memory capacitor are respectively arranged on a first conductive layer, a second conductive layer and a third conductive layer. The pixel unit additionally comprises a light blocking strip which is arranged on the first conductive layer or the second conductive layer and is overlapped with the pattern part of the pixel electrode. By adopting the pixel unit and the coplane conversion type liquid crystal display device, since the area of the memory capacitor is reduced, the invention has the advantages that the aperture opening ratio is improved, the display quality is improved and the contrast is improved.
Description
technical field [0001] The invention relates to the field of liquid crystal display, in particular to a pixel unit, a coplanar switching type liquid crystal display device and a manufacturing method. Background technique [0002] In recent years, with the increasing demand for mobile information media, thin and portable liquid crystal displays (LCDs) that can replace existing cathode ray tubes (CRTs) are being actively researched. The most commonly used is the twisted nematic (TN) liquid crystal display mode. After it is energized, the liquid crystal molecules are twisted under the action of the electric field, that is, the passage of light is controlled by controlling the arrangement of the liquid crystal molecules. The disadvantage of the TN LCD display device is that the viewing angle is very narrow, which is caused by the anisotropy of liquid crystal molecules. Although the defect of narrow viewing angle can be compensated by optical compensation, it must consume a certa...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/12H01L23/52H01L21/82H01L21/768H01L21/71G02F1/1368
Inventor 黄贤军袁剑峰
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD