Voltage stabilizing circuit, display panel and driving method thereof

A voltage stabilizing circuit and display panel technology, applied to static indicators, instruments, etc., can solve problems such as parasitic capacitance increase, bright lines, drive gate voltage writing errors, etc., to improve load capacity and avoid The effect of bright lines and improving the ability to resist crosstalk

Active Publication Date: 2020-11-20
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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Problems solved by technology

[0003] However, as the user's demand is getting higher and higher, the resolution of the display device is also increasing, resulting in a significant increase in parasitic capacitance, especially on the data line
When the display screen is switched from white to black, or when the pixels in the display screen need to be switched from 255 to 0, due to the existence of parasitic capacitance, the driving gate voltage will eventually be written incorrectly and bright lines will appear.

Method used

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  • Voltage stabilizing circuit, display panel and driving method thereof
  • Voltage stabilizing circuit, display panel and driving method thereof
  • Voltage stabilizing circuit, display panel and driving method thereof

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0019] The inventors of the present application have found through long-term research that: in the layout design of OLED display panels in the prior art, the metal layer where the data line is located usually covers (or partially covers) the metal layer where the gate of the driving transistor is located, and the data line There is inevitably parasitic capacitance on the line; this parasitic capacitance affects the gate voltage of the drive transis...

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Abstract

The invention provides a voltage stabilizing circuit of a display panel, the display panel and a driving method of the display panel, the input end of the voltage stabilizing circuit is coupled with an anode driver of the display panel, and the voltage stabilizing circuit is used for collecting voltage equal to the data voltage of the display panel from the anode driver; the output end of the voltage stabilizing circuit is coupled with the pixel circuit of the display panel and used for outputting voltage to the pixel circuit. Data voltage is acquired from an anode driver of a pixel circuit, so that coupling voltage generated by charging and discharging of parasitic capacitors on at least part of data lines can be offset from the source; and even if the data voltage jumps, the correct input of the data voltage can be ensured, so that the grid driving voltage is normally written, the bright line is avoided, and the display quality of the display panel is improved. The data voltage is acquired from the anode driver of the pixel circuit, and the driving capability of the anode driving voltage is obviously higher than that of the data driver, so that the load capability of the data voltage can be effectively improved, and the crosstalk resistance of the display panel is further improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a voltage stabilizing circuit of a display panel, a display panel and a driving method of the display panel. Background technique [0002] With the development of display technology, organic light emitting diode (OLED, Organic Light Emitting Diode) display is more and more widely used in various portable electronic devices due to its advantages of fast response speed, high luminous efficiency, high brightness and wide viewing angle. in the device. [0003] However, as the user's demands are getting higher and higher, the resolution of the display device is also increasing, resulting in a significant increase in parasitic capacitance, especially on the data line. When the display screen is switched from white to black, or when the pixels in the display screen need to be switched from 255 to 0, due to the existence of parasitic capacitance, the driving gate voltage will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208
Inventor 张衎郑义张泽宏
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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