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Display panel, driving method thereof and display device

A technology of display panel and driving method, applied in static indicators, instruments, etc., can solve problems such as insufficient Pixel charging, increased RCLoading, and shortened MUX turn-on time.

Active Publication Date: 2019-07-12
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the 1:6 MUX solution, due to the increase in screen size and resolution, the RCLoading of the display panel itself increases. In addition, the increase in MUX shortens the turn-on time of MUX, resulting in insufficient charging of some Pixels on the side far away from the data driver chip. When some specific screens are displayed, vertical dark lines will appear visually, which will affect the display quality of the display panel

Method used

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  • Display panel, driving method thereof and display device
  • Display panel, driving method thereof and display device
  • Display panel, driving method thereof and display device

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Experimental program
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Embodiment 1

[0047] If it is determined that the frame to be displayed is a solid-color picture, the data driver IC will send an instruction to display a solid-color picture to its internal Flash, and cooperate with each signal (STVL, STVR, CKL, CKR, CKBL, CKBR) in the gate drive circuit to realize The output of the scanning signal, that is, during the scanning period of all the gate lines (from the output of the first row of gate lines to the period of the output of the last row of gate lines), for example, control the sub-control signal line SW_R and the corresponding sub-data compensation line Data_R to input high-level signals , or control the sub-control signal line SW_G and the corresponding sub-data compensation line Data_G to input a high-level signal, or control the sub-control signal line SW_B and the corresponding sub-data compensation line Data_B to input a high-level signal, such as Figure 5 As shown, all switching transistors T1 corresponding to the sub-pixel columns of the s...

Embodiment 2

[0049] If it is judged that the frame picture to be displayed is a heavy-duty picture, the data driver IC will send an instruction to display the heavy-duty picture to its internal Flash. ) To alternately output high and low level signals, taking one line bright and one line dark as an example, the row or column sub-pixels corresponding to the bright screen display a high-level signal to control all switching transistors T1 to conduct, and the sub-pixel columns corresponding to a dark screen input a low voltage The flat signal controls all switching transistors T1 to be cut off, and the high and low level output time of each row control sub-control signal line (SW_R, SW_G, and SW_B) is the same as the output time of the scanning signal, and cooperates with each signal in the gate drive circuit (STV, CK) realizes the output of the scan signal, that is, during the scan period of all gate lines (from the first row of gate line output to the last row of gate line output), control e...

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Abstract

The invention discloses a display panel, a driving method thereof and a display device. In the display panel, the first end of the data line is electrically connected with a data driving IC used for inputting data voltage to the data line. An electrically connected data compensation circuit is arranged at the second end of a data line; when a pure-color picture or a heavy-load picture is displayed, the same data voltage is loaded to the two ends of the data line through the data driving IC and the data compensation circuit at the same time, so charging is carried out from two ends of the dataline; thus, the pixel charging capability can be improved, the pixel charging time can be shortened, the problem that pixel charging on the side far away from the data driving IC is insufficient can be solved, and the problem that when a pure color picture or a heavy load picture is displayed, vertical dark fringes can be visually generated, and the display quality of a display panel is affected is solved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel, a driving method thereof and a display device. Background technique [0002] At present, the data driving chip in the display outputs the pixel voltage to the pixel unit through the data line. Due to the large number of data lines in the display, correspondingly, the data driver chip needs more pins, so there are correspondingly more data transmission lines for transmitting data signals to each data line, which is not conducive to realizing a narrow frame of the display. In order to achieve a full screen, by reducing the number of data transmission lines, a multiplexer MUX is set between the data driver chip and the data lines in the related art. At present, the commonly used solution is that the data driver chip can connect three sub-pixel units RGB ( It can be called 1:3MUX scheme), and the data driver chip can connect six sub-pixel units RGB through ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/3275
CPCG09G3/3685G09G3/3696G09G3/3275
Inventor 赵爽孙继刚赵晶蒋伟信宗少雷
Owner BOE TECH GRP CO LTD
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