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Gate driving circuit and display apparatus having the same

A technology of gate drive circuit and display device, applied in the field of gate drive circuit and display device, can solve problems such as display defects, and achieve the effect of reducing drive defects and preventing abnormal gate conduction signals

Active Publication Date: 2012-01-04
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Intermittent abnormal turn-on of pull-up transistors causes display defects on LCD

Method used

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  • Gate driving circuit and display apparatus having the same
  • Gate driving circuit and display apparatus having the same
  • Gate driving circuit and display apparatus having the same

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Embodiment Construction

[0027] Some specific embodiments of the present invention will be described below with reference to the accompanying drawings. However, this invention may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, these specific embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative size of respective layers and regions are not intended to represent actual sizes.

[0028] It will be understood that when an element or layer is referred to as being "on," "connected to," or "coupled to" another element or layer, it can be directly on, directly on, or directly on the other element or layer. Connected or directly coupled to the other element or layer, or alternatively, intervening elements or layers may be present. In contrast, when an element is referred to as being "dir...

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Abstract

In a gate driving circuit and a display apparatus, the gate driving circuit comprises a plurality of stages. At least one of the stages comprises a pull-up section responsive to a first node signal; a pull-down section responsive to a second input signal; a discharging section discharging the first node signal in response to the second input signal; a first holding section responsive to the firstclock signal, maintaining the first node signal at the off-voltage; and a second holding section responsive to the second clock signal, maintaining the first node signal at the off-voltage. The second holding section has a greater transistor width-to-length ratio than the first holding section. Therefore, an abnormal gate-on signal is less likely to occur, reducing driving defects of the display apparatus.

Description

technical field [0001] The invention relates to a grid driving circuit and a display device with the grid driving circuit. In some embodiments, the gate drive circuit can reduce drive defects. Background technique [0002] Generally, a liquid crystal display (LCD) device includes an array substrate, an opposite substrate, and a liquid crystal layer disposed between the array substrate and the opposite substrate. The liquid crystal layer includes liquid crystal molecules having an anisotropic dielectric constant. In the LCD device, an electric field is applied to liquid crystal molecules, and light transmittance is controlled according to the strength of the electric field to display images. [0003] The LCD device includes a display panel including an array substrate and an opposing substrate, and further includes a gate driving circuit and a data driving circuit. The display panel includes a plurality of pixel regions defined by gate lines and data lines crossing the gat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G3/20
CPCG09G3/3677G09G2300/0413G09G2300/0876G09G2310/061G11C19/28H03K19/01742
Inventor 李旼哲文胜焕
Owner SAMSUNG DISPLAY CO LTD
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