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Storage capacitor and liquid crystal display using said storage capacitor

A liquid crystal display and storage capacitor technology, which is applied to static indicators, instruments, transistors, etc., can solve the problems such as the decrease of the aperture ratio of the pixel area 2 and affect the display effect of the liquid crystal display, and achieve the effect of increasing the capacitance value

Active Publication Date: 2008-04-23
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the effective area A will reduce the aperture ratio of the pixel area 2, thereby affecting the display effect of the liquid crystal display.

Method used

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  • Storage capacitor and liquid crystal display using said storage capacitor
  • Storage capacitor and liquid crystal display using said storage capacitor
  • Storage capacitor and liquid crystal display using said storage capacitor

Examples

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Embodiment Construction

[0024] In the first embodiment of the liquid crystal display of the present invention, the pixel area with the storage capacitor is as image 3 and Figure 4 shown. see image 3 , is a schematic diagram of a pixel region of the first embodiment of the liquid crystal display of the present invention. The pixel area 3 includes a pixel electrode 30 , a source line 33 , a gate line 38 , a thin film transistor 300 and a storage capacitor 37 . The source line 33 and the gate line 38 intersect each other to form the pixel region 3 , and the pixel electrode 30 is electrically connected to the source line 33 through the thin film transistor 300 , and the thin film transistor 300 is used as a switch to control switching of the pixel electrode 30 .

[0025] see Figure 4 , is along image 3 A cross-sectional view of the storage capacitor 37 in the IV-IV direction shown. The storage capacitor 37 is located on a glass substrate 39 and includes a first capacitor electrode (ie, a gate ...

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Abstract

The present invention discloses a kind of storage capacitor and LCD with the said storage capacitor. The storage capacitor includes one first capacitor electrode, one dielectric layer on the first capacitor electrode, and one second capacitor electrode on the dielectric layer, and at least one of the first capacitor electrode and the second capacitor electrode has at least one hole. Owing to the edge effect of the hole, the storage capacitor has increased capacitance. As the further improvement, at least one of the first capacitor electrode and the second capacitor electrode has several separated lugs, and the edge effect of the lugs and the light penetrating effect of the gaps between lugs result in further increased capacitance. The LCD with the said storage capacitor has relatively great storage capacitance and thus opening rate of the pixel region.

Description

【Technical field】 [0001] The invention relates to a storage capacitor and a liquid crystal display using the storage capacitor. 【Background technique】 [0002] A liquid crystal display adopting an active matrix array generally includes a plurality of pixel regions formed by intersecting gate lines and source lines and a plurality of thin film transistors (Thin Film Transistor, TFT) arranged at the intersections of gate lines and source lines, Wherein, each pixel has a pixel electrode, and the thin film transistor is used to control the switching of the pixel electrode. [0003] When a signal is applied to the thin film transistor, the pixel area is activated, and an image signal is applied to the pixel electrode. In order to achieve a high-quality display effect, the voltage applied to the pixel electrode must maintain a constant value until the next signal is received. However, the charge used to maintain the voltage on the pixel electrode usually leaks quickly, causing t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/136G02F1/133H01L29/786
Inventor 洪肇逸陈弘育
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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