Unlock instant, AI-driven research and patent intelligence for your innovation.

Bidirectional drive circuit of liquid crystal displaying apparatus

A technology of liquid crystal display and driving device, which is applied in the direction of TV, color TV, electrical components, etc., and can solve the problem of generating two outputs by mistake

Inactive Publication Date: 2004-06-30
LG DISPLAY CO LTD
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, output 1 and output 5 at the first and fifth outputs may erroneously produce two outputs during about 20-40 μs

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Bidirectional drive circuit of liquid crystal displaying apparatus
  • Bidirectional drive circuit of liquid crystal displaying apparatus
  • Bidirectional drive circuit of liquid crystal displaying apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0056] Figure 10 is a circuit diagram of an exemplary shift register in an LCD panel of the present invention. exist Figure 10 In the shift register, a strobe or data trigger pulse VST, four clock signals with different phases, and power supply voltages Vdd and Vss are input to the shift register. In addition, the shift register includes five sets of transistors with the same structure. Each of the five groups includes first, second, third, fourth, fifth, sixth, seventh, eighth and ninth P-MOS transistors TFT1-TFT9. In particular, a trigger pulse VST is applied to the drain and gate of the first transistor TFT1, or the drain and gate are connected to the output terminal of the previous group. For example, in the first group, the drain and gate of the first transistor TFT1 are connected to receive the trigger pulse VS...

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

No PUM Login to View More

Abstract

A driving device includes a plurality of blocks arranged in sequence, each of the blocks includes ninth switching elements connected to received a start pulse, four clock signals, and two source voltages. The switching elements are arranged to output the four clock signals in sequence and to alternatively output the four clock signals in a reverse sequence.

Description

[0001] This application claims the benefit of Korean Patent Application No. P2002-80711 filed in Korea on December 17, 2002, which is hereby incorporated by reference in this application. technical field [0002] The present invention relates to a driving circuit for a liquid crystal display (LCD) device, and more particularly, the present invention relates to a bidirectional driving circuit for an LCD panel, which is capable of bidirectional driving independent of the number of stages. Background technique [0003] In general, an LCD device mainly includes driving circuits, such as gate driving integrated circuits (ICs) and data driving ICs, disposed within the LCD panel. Also, LCD devices have a fixed driving direction, so system builders sometimes require different panels. [0004] figure 1 is a circuit diagram of a liquid crystal display (LCD) panel in the prior art. exist figure 1 Among them, a polysilicon thin film transistor liquid crystal display (TFT LCD) panel i...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G09G3/20G09G3/36G11C19/00H03K17/00H03K17/693H04N5/66
CPCG09G3/3674G09G3/3685G11C19/00G09G2310/0283G09G3/36
Inventor 朴在德
Owner LG DISPLAY CO LTD