goa circuit for liquid crystal display device

A liquid crystal display device and circuit technology, applied in static indicators, electrical digital data processing, input/output process of data processing, etc., can solve the problems of low reporting rate, difficult to realize, and short time, and achieve high reporting Dot rate, panel cost reduction, and control cost savings

Active Publication Date: 2017-02-22
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The other is to output the gap between the output gate signals during the row scanning process. At the same time, in order to avoid the interference of the data (Data) signal on the driving electrode signal, it needs to be in the flat section of the data, so for high-resolution products Speaking, the available time is extreme, the single signal width of the driving electrode is less than 2us, the time is small, it is difficult to realize, especially the touch technology needs to be considered to cooperate with the normal display drive, which has a great impact on the touch technology Scanning is limited, it is difficult to achieve 120Hz, or even higher frequency scanning, so the report rate will be lower

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
  • goa circuit for liquid crystal display device
  • goa circuit for liquid crystal display device
  • goa circuit for liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0049] figure 1 It is a schematic circuit diagram of the GOA of the first preferred embodiment of the present invention. The invention provides a GOA circuit for a liquid crystal display device, the liquid crystal display device includes a plurality of scanning lines, the GOA circuit includes a plurality of cascaded GOA units (100), wherein the Nth level GOA unit (100) Controlling the charging of the Nth level scan line (GN), characterized in that 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

No PUM Login to View More

Abstract

A Gate Driver On Array (GOA) circuit for a liquid crystal display device. The liquid crystal display device comprises a plurality of scanning lines, and the GOA circuit comprises a plurality of cascaded GOA units (100). An Nth-level GOA unit (100) controls charging of an Nth-level scanning line in a display area. The Nth-level GOA unit (100) comprises a signal transmission circuit (500), an inverter amplifier circuit (600), a signal reset circuit (700) and an inverter logic circuit (800). When a first screen scanning program is executed, the GOA circuit conducts scanning from a first-level GOA unit (100) to an Xth-level GOA unit (100) in the forward direction; when the GOA circuit receives touch information, the GOA circuit enters a touch point scanning program; and when a reset signal is changed to a low potential, the GOA circuit enters a second screen scanning program. According to the circuit, the touch scanning mode is improved, so that the point reporting rate of a touch panel (TP) is increased, and therefore the sensitivity of the touch panel is improved.

Description

[0001] 【Technical field】 [0002] The present invention relates to the field of liquid crystal display technology, in particular to a GOA (Gate Driver On Array, array substrate row scanning drive) circuit for a liquid crystal display device based on LTPS (Low-Temperature Poly-Si) CMOS (Complementary Metal Oxide Semiconductor) . [0003] 【Background technique】 [0004] Touch panels have been widely used in smart phones, tablets / e-books, notebook computers, POS / KIOSK, game consoles, ATM machines and other fields. In the next few years, touch screens will grow rapidly, especially in mobile phones, tablet PCs, portable multimedia players (PMP / MP3), personal navigation devices and other applications. At the same time, touch panels are expected to achieve breakthroughs and growth in the application of large-size screens, such as All-In-One computers. [0005] From the perspective of shipments, 2 / 3 of the touch screens in the world are used in mobile phones, which is the most import...

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 & AuthorityPatents(China)
IPC IPC(8): G09G3/36
CPCG06F3/041
Inventor肖军城
OwnerTCL CHINA STAR OPTOELECTRONICS TECH CO LTD