Pixel driving circuit, driving method of pixel driving circuit and display panel
A pixel drive circuit and drive current technology, which is applied in the field of pixel drive circuits, pixel drive circuit drive methods and display panels, can solve problems such as different brightness, poor display uniformity, and different compensation effects, so as to improve display uniformity and improve Effects of the mura phenomenon
Active Publication Date: 2021-08-24
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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Problems solved by technology
Due to the insufficient charging time of the pixel driving circuit in the compensation process, the compensation effects corresponding to different display gray scales are different, which leads to different brightness when multiple pixel driving circuits in the display panel drive the light-emitting diodes to emit light, and the mura phenomenon of the display panel is obvious. , showing poor uniformity
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[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0041] figure 1 A partial structural schematic diagram of a pixel driving circuit provided in the prior art. Such as figure 1 As shown, the pixel driving circuit includes a driving transistor N0, a data writing transistor M0, a compensation transistor M1 and a storage capacitor Cs. The gate of the data writing transistor M0 and the gate of the compensation transistor M1 are connected to the first scanning line Scan1 to receive the first scanning signal, the source is connected to the data line to receive the dat...
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The invention discloses a pixel driving circuit, a driving method of the pixel driving circuit and a display panel. The pixel driving circuit comprises a driving module used for providing driving current for a light-emitting module so that the light-emitting module emits light in response to the driving current; an initialization module used for initializing the control end of the driving module and the light-emitting module; a data writing module used for writing the data voltage into the control end of the driving module through a storage module; the storage module used for coupling the data voltage to the control end of the driving module and maintaining the potential of the control end of the driving module; a clamping module used for clamping the potential of the storage module; and a threshold compensation module used for compensating for the threshold voltage of the driving module according to a first power supply signal. According to the embodiment of the invention, when the charging time of the threshold compensation stage is insufficient, the corresponding compensation effects under different display gray scales can be the same, so that the mura phenomenon of the display panel is improved when the display panel displays, and the display uniformity of the display panel is improved.
Description
technical field [0001] The embodiments of the present invention relate to the field of display technology, and in particular, to a pixel driving circuit, a driving method of the pixel driving circuit, and a display panel. Background technique [0002] During the display process of the display panel, the pixel driving circuit drives the light emitting diode to emit light for display. The compensation transistor in the pixel driving circuit compensates the threshold voltage of the driving transistor. Due to the insufficient charging time of the pixel driving circuit in the compensation process, the compensation effect corresponding to different display gray scales is different, which leads to different brightness when multiple pixel driving circuits in the display panel drive the light-emitting diodes to emit light, and the mura phenomenon of the display panel is obvious. , showing poor uniformity. Contents of the invention [0003] The invention provides a pixel driving c...
Claims
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Login to View More IPC IPC(8): G09G3/32G09G3/3233
CPCG09G3/32G09G3/3233G09G2320/0233
Inventor 郭子栋郭恩卿
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD