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

Driving circuit and method of display panel and display device

A display panel and drive circuit technology, applied to static indicators, instruments, etc., can solve problems such as abnormal screens and incompatible data mapping of timing controllers

Active Publication Date: 2022-01-11
HKC CORP LTD
View PDF17 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a driving circuit for a display panel, aiming to solve the problem that the data mapping of the timing controller is not compatible in the traditional forward and reverse scanning driving method, resulting in an abnormal picture

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
  • Driving circuit and method of display panel and display device
  • Driving circuit and method of display panel and display device
  • Driving circuit and method of display panel and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] First aspect of embodiments of the present invention provide a display panel driving circuit 2.

[0050] like figure 1 and Figure 12 As shown in the display panel driving circuit 2 comprises a gate driving circuit 10 and the source driving circuit 20, a gate driving circuit 10 for the panel 1 to n scan lines connected to the display, the source driving circuit 20 includes a controller 23, the logic switching circuit 22 and the source driver 21, the source driver 21 includes m signal output terminals, m data lines of the panel 1 m is connected to a logic signal output terminal through the switching circuit 22 and the display;

[0051] The controller 23, a gate driving circuit 10 line by line by the forward scan trigger output of the first logic control signal to the switching circuit 22;

[0052] The gate driving circuit 10 line by line by the backward scanning and outputting a second trigger signal before the control unit turns on each row of pixels to the logic switching c...

Embodiment 2

[0071] In the present embodiments on the basis of a specific embodiment of embodiment, such as Figure 11 , In one embodiment, the logic circuit 22 includes m switching logic switches K1, K1 comprises a first logic switch of each signal input terminal, a second signal input terminal, a third signal input terminal and a signal output terminal, each the signal output of the logic switch K1 are connected to a data line of the display panel 1, a first signal input terminal of each logic switch K1, the second input signal and a third signal output terminal of the source driver are respectively successively spaced 21 the i-th signal output of three.

[0072] When the forward scanning, the signal output of the logic switch K1 wherein the display panel 1 is connected to a data line, the serial signal output terminal corresponding to a first signal input terminal and the source driver 21 is connected, reverse scan, the logic switch K1 a signal output terminal of the display panel wherein a ...

Embodiment 3

[0075] In the present embodiments on the basis of a specific embodiment of embodiment, such as Figure 12 , The gate drive circuit 10 includes a gate driver 11 and a feedback circuit 12, feedback circuit 12 are respectively connected to the gate driver 11 and controller 23;

[0076] A gate driver 11 for outputting the forward row scan signal when receiving the forward scan control signal to the display panel 1 n scanning line progressive scan of the forward direction; and

[0077] Output of the inverse scanning line signal upon receiving the reverse scan control signals to the display panel scan line n 1 reverse progressive scanning;

[0078] A feedback circuit 12, a control signal for the forward scan and the reverse scan control signals back to the controller 23.

[0079] In this embodiment, the gate driver 11 according to the received scan control signal of a progressive scanning signal output lines, to achieve forward scanning and backward scanning, the same time, the controlle...

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

The invention provides a drive circuit and method of a display panel and a display device. The drive circuit of the display panel comprises a gate drive circuit and a source drive circuit; the source drive circuit comprises a controller, a logic switch circuit and a source driver; during forward scanning, m signal output ends of the source driver are normally connected with m data lines of the display panel, line-by-line scanning driving is carried out, a first picture is displayed, and during reverse scanning, the source driver carries out signal output end shifting before each line of pixel units are started and carries out reverse shifting after each line of pixel units are started; after line-by-line scanning driving, a second picture which is mirrored with the first picture is displayed, a data signal output by a source electrode driving circuit is not changed, that is, a data address input by a time sequence controller does not need to be changed, a data signal output to a display panel is changed, and finally a mirrored picture is formed; therefore, the problem that a display picture is abnormal due to the fact that a time schedule controller cannot be compatible is solved.

Description

Technical field [0001] The present invention belongs to the technical field display panel, particularly to a circuit and method for driving a display panel, the display device. Background technique [0002] In some special applications, the display panel requires forward and reverse scan function, e.g., a display screen of the phone screen can display normally placed, can be displayed upside down, so that the display screen image presentation screen, then the gate drive requirements scan circuit may either top-down, bottom-up scan may be performed. [0003] In order to display a screen image presentation realized after the forward and reverse scans, the conventional driving method two different sets of input data address timing controller, however, forward scan and reverse scan input data address the presence of different timing controller data mapping can not be compatibility issues, and ultimately makes the display abnormal. Inventive content [0004] Object of the present inv...

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): G09G3/20
CPCG09G3/20G09G2310/0267G09G2310/0275G09G2310/0283
Inventor 陈杰李建雷袁海江
Owner HKC CORP LTD