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Source driving circuit and display device

A source drive and circuit technology, applied in static indicators, instruments, etc., can solve problems such as poor display and crosstalk between signals, and achieve the effects of reducing poor display, improving quality, and reducing variability

Active Publication Date: 2022-03-01
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a source drive circuit and a display device, which are used to solve the problem of poor display due to crosstalk between signals caused by source driver multiplexing technology

Method used

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  • Source driving circuit and display device
  • Source driving circuit and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Please refer to figure 2 , an embodiment of the present invention provides a source driving circuit, which is applied to a display panel, and the display panel includes sub-pixels of three colors (red sub-pixel Red, green sub-pixel Green, and blue sub-pixel Blue) and used to supply The multiple data lines of the sub-pixel input data signal, the multiple data lines are arranged in sequence according to the row direction, and the source driving circuit includes:

[0060] 6 control lines 10 (MUX[1]~MUX[6]) and multiple multiplexer units 20;

[0061] Wherein, the six control lines 10 are arranged sequentially according to the column direction;

[0062] The plurality of multiplexer units 20 are arranged sequentially according to the row direction, each of the multiplexer units 20 includes 6 switches 21, and the 6 switches 21 are arranged sequentially according to the row direction, the The control ends of the six switches 21 are connected to the six control lines 10 in on...

Embodiment 2

[0084] Please refer to image 3 , an embodiment of the present invention provides a source driving circuit, which is applied to a display panel, and the display panel includes sub-pixels of three colors (red sub-pixel Red, green sub-pixel Green, and blue sub-pixel Blue) and used to supply The multiple data lines of the sub-pixel input data signal, the multiple data lines are arranged in sequence according to the row direction, and the source driving circuit includes:

[0085] 6 control lines (MUX[1] and MUX[4]) 10 and multiple multiplexer units 20;

[0086] Wherein, the six control lines 10 are arranged sequentially according to the column direction;

[0087]The plurality of multiplexer units 20 are arranged sequentially according to the row direction, each of the multiplexer units 20 includes 6 switches 21, and the 6 switches 21 are arranged sequentially according to the row, and the 6 switches 21 are arranged sequentially according to the row direction. The control ends of...

Embodiment 3

[0115] refer to Figure 4 , an embodiment of the present invention provides a source driving circuit, which is applied to a display panel, and the display panel includes sub-pixels of three colors (red sub-pixel Red, green sub-pixel Green, and blue sub-pixel Blue) and used to supply The multiple data lines of the sub-pixel input data signal, the multiple data lines are arranged in sequence according to the row direction, and the source driving circuit includes:

[0116] 12 control lines (MUX) 10 and multiplexer units 20;

[0117] Wherein, the 12 control lines 10 are arranged sequentially according to the column direction;

[0118] The plurality of multiplexer units 20 are arranged in sequence according to the row direction, and each of the multiplexer units 20 includes 12 switches 21, and the 12 switches 21 are arranged in sequence according to the row, and the 12 switches 21 are arranged in sequence according to the row direction. The control ends of the switches 21 are con...

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Abstract

The invention provides a source electrode driving circuit and a display device, the source electrode driving circuit is applied to a display panel, the display panel comprises sub-pixels of M colors and a plurality of data lines, and the source electrode driving circuit comprises N control lines and a plurality of multiplexer units; the multiplexer unit comprises N switches, the control ends of the N switches are connected with the N control lines in a one-to-one correspondence manner, the input ends of the N switches are connected with the same data signal input line, and the output ends of the N switches are connected with the N data lines in a one-to-one correspondence manner; the N data lines comprise first data lines and second data lines, and the first data lines and the second data lines are electrically connected with the sub-pixels of the same color; the N control lines comprise a first control line and a second control line, the first control line and the second control line are used for driving switches electrically connected with the first data line and the second data line respectively, the first control line and the second control line are adjacent or spaced by X control lines, and X is smaller than or equal to M-2.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular to a source driving circuit and a display device. Background technique [0002] As the resolution of AMOLED (Active-matrix organic light-emitting diode, active-matrix organic light-emitting diode) panels increases, the number of source drivers increases, which poses challenges in the module manufacturing process. In order to reduce the number of source drivers and reduce the size and cost of IC (Integrated Circuit, integrated circuit), source driver multiplexing technology is introduced, and the same source driver can be used to drive two columns or even more columns of pixels. However, after the multiplexing ratio of the source driver (the multiplexing ratio is the number of pixel columns that can be driven by each source driver) is increased, the source driver circuit is more complicated, and the overlap between the traces is more, which may cause interf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3275
CPCG09G3/3275G09G2310/0264G09G2320/02
Inventor 单冬晓
Owner BOE TECH GRP CO LTD
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