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Display panel and driving method of pixel thereof

A display panel and pixel technology, applied in the field of driving technology, can solve the problems of hue change, display color shift, change, etc., and achieve the effect of avoiding color shift

Active Publication Date: 2017-12-15
AU OPTRONICS CORP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, with the development of the manufacturing process, the light-emitting diodes are gradually miniaturized to the micron level and become micro-LEDs. However, as a result of miniaturization, not only the brightness of the micro-LEDs will change with the strength of the driving current, but also Its hue will also change with the strength of the driving current, causing the color shift problem of the display

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  • Display panel and driving method of pixel thereof

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Embodiment Construction

[0057] In the following embodiments, for the sake of concise description, the same or similar elements or items are labeled with the same or similar symbols as much as possible, but the same or similar can only be regarded as similar situations, not to represent the exact sameness. It depends on the content of the embodiment, and the embodiment of the present invention is not limited thereto.

[0058] figure 1 It is a system diagram of a display panel according to an embodiment of the present invention. Please refer to figure 1 , in this embodiment, the display panel 100 includes a plurality of control lines 110, a plurality of data lines 120 and a pixel array PXA. Wherein, the pixel array PXA has a plurality of pixels PX arranged in an array, the control line 110 is used to couple to a control circuit (such as a gate driver or a similar circuit) to receive a control signal (such as a gate drive signal), and the data line 120 is used for A circuit (such as a source driver, ...

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Abstract

The present invention discloses a display panel and a driving method of the pixel thereof. The display panel includes a pixel array, and the pixel array has a plurality of pixels. Each pixel includes a light-emitting diode, a constant current source and a time control unit. The LED receives a first system voltage. Constant current source provides a certain current. The time control unit is coupled in series with the LED and the constant current source and has a first capacitor for storing a voltage difference between a reference voltage and a data voltage. The time control unit determines a supply time of the constant current to the LED according to the voltage difference.

Description

technical field [0001] The present invention relates to a driving technology, and in particular to a display panel and a method for driving pixels thereof. Background technique [0002] Due to the advantages of self-illumination, wide viewing angle, high contrast, and fast response speed, light-emitting diodes (light-emitting diode LEDs) are currently one of the main display technologies for large-scale displays. Among them, if LEDs are combined with active-matrix driving (Active-matrix driving), it can be applied to small and medium-sized display products. The driving method will control the brightness of LEDs through the strength of the driving current, and then generate the required grayscale. order. However, with the development of the manufacturing process, the light-emitting diodes are gradually miniaturized to the micron level and become micro-LEDs. However, as a result of miniaturization, not only the brightness of the micro-LEDs will change with the strength of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 郭家玮廖宜扬洪嘉泽
Owner AU OPTRONICS CORP
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