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Display panel, driving method thereof, and display device

A technology for display panels and driving methods, which is applied to static indicators, instruments, semiconductor devices, etc., and can solve the problems of increasing the sum of the number of data signal lines and reference signal lines, uneven display of organic light-emitting display panels, and affecting the magnitude of driving current, etc.

Active Publication Date: 2021-03-09
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
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Problems solved by technology

The driving current generated by the driving transistor is related to the threshold voltage of the driving transistor. The threshold voltage of the driving transistor will drift due to being in a bias state for a long time, which affects the magnitude of the driving current generated by the driving transistor, resulting in uneven display of the organic light-emitting display panel. question
[0003] In view of the above problems, nT1C pixel circuit can be used to realize the compensation of the threshold voltage of the drive transistor, so that the drive current generated by the drive transistor has nothing to do with the threshold voltage of the drive transistor, but this pixel circuit design requires a corresponding setting for each pixel unit. Data signal lines and a reference signal line, which undoubtedly increases the sum of the number of data signal lines and reference signal lines in the display panel, that is, increases the sum of the number of signal lines corresponding to all pixel units in the display panel, which is not conducive to the integration of the display panel improvement

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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Embodiment Construction

[0021] 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. Throughout this specification, the same or similar reference numerals represent the same or similar structures, elements or processes. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0022] An embodiment of the present invention provides a display panel, including a plurality of pixel units, a plurality of reference signal lines and a plurality of data signal lines, the i-th column pixel unit and th...

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Abstract

The invention discloses a display panel, a driving method thereof, and a display device. The display panel includes a plurality of pixel units, a plurality of reference signal lines and a plurality of data signal lines, and the i-th column pixel unit is shared with the i+1th column pixel unit A reference signal line, the pixel unit in the i+1 column and the pixel unit in the i+2 column share a data signal line; where i is an odd number or i is an even number; in the sensing mode, the reference signal line is used for time-division Output the sensing signal generated by the corresponding pixel unit, the sensing signal includes the threshold voltage of the driving module in the pixel unit; in the display mode, the data signal line is used to write the data signal to the corresponding pixel unit according to the sensing signal, and the reference signal The lines are used to write reference signals to corresponding pixel units. Through the technical solution of the present invention, while realizing the threshold voltage compensation of the driving module, the total number of data signal lines and reference signal lines in the display panel is reduced, and the integration degree of the display panel is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a display panel, a driving method thereof, and a display device. Background technique [0002] Organic light-emitting display devices generally include several pixel units, and each pixel unit includes a pixel circuit. The simplest pixel circuit used in the prior art is a 2T1C structure, that is, the pixel circuit includes two transistors and a storage capacitor, one of which is The transistor is a switching transistor, and the other transistor is a driving transistor for driving the organic light emitting structure in the pixel unit to emit light. The driving current generated by the driving transistor is related to the threshold voltage of the driving transistor. The threshold voltage of the driving transistor will drift due to being in a bias state for a long time, which affects the magnitude of the driving current generated by the driving transisto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225H01L27/32
CPCG09G3/3225H10K59/131
Inventor 吴天一
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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