Output control circuit of source electrode driving chip and display panel
A source driver chip and output control technology, applied to static indicators, instruments, etc., can solve problems such as water ripples on the display screen of the display panel, length of charging time, abnormal display panel images, etc., to improve display quality and reduce abnormal images The effect of the probability of
Pending Publication Date: 2022-02-11
集创北方(珠海)科技有限公司
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However, due to the resistance-capacitance load of the data line, the farther away from the source driver chip the greater the resistance-capacitance load of the data line, so the voltage received by the pixel unit farther away from the source driver chip is smaller, and its charging time is longer also shorter
It can be seen that the pixel units far away from the source driver chip are undercharged, and this phenomenon of undercharged pixel units increases with the refresh rate and screen size of the display panel, making the charging between the pixel units in the display panel The difference becomes more and more obvious, so there will be water ripples or color shifts when the display panel displays the picture, resulting in abnormal picture of the display panel and seriously affecting the display quality of the display panel
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[0031] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
[0032] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.
[0033] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...
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The invention relates to an output control circuit used for a source electrode driving chip in a display panel and the display panel. The output control circuit comprises a clock circuit and an output buffer circuit electrically connected with the clock circuit. The clock circuit generates at least one clock signal through oscillation; the output buffer circuit receives the voltage signal and the clock signal and outputs the voltage signal according to the clock signal so as to drive the pixel unit corresponding to the voltage signal, and the voltage signal is generated by the source electrode driving chip according to the input image digital data. According to the output control circuit and the display panel provided by the invention, at least one path of clock signal is independently generated through the clock circuit to control the output buffer circuit to output the voltage signal for driving each pixel unit, so the problem of phenomena such as water ripples or color cast caused by unequal distances between the pixel units and a source electrode driving chip is solved; therefore, the probability of picture abnormity of the display panel is reduced, and the display quality of the display panel is improved.
Description
technical field [0001] The present disclosure relates to the field of display panels, in particular to an output control circuit of a source driver chip and a display panel. Background technique [0002] With the continuous development of science and technology, people also put forward further requirements on the display quality of the display panel. Existing display panels generally use a gate driver chip and a source driver chip to jointly drive a plurality of pixel units. Specifically, after the gate drive chip provides a scan signal to the display panel through the gate scan line to turn on the switch of the pixel unit, the source drive chip provides a data signal to the display panel through a data line perpendicular to the gate scan line, and the corresponding The capacitor inside the pixel unit is charged. However, due to the resistance-capacitance load of the data line, the farther away from the source driver chip the greater the resistance-capacitance load of the ...
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IPC IPC(8): G09G3/20G09G3/32G09G3/3208G09G3/36
CPCG09G3/20G09G3/32G09G3/3208G09G3/36
Inventor 黄子轩
Owner 集创北方(珠海)科技有限公司