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Display panel and pixel driving method thereof

A display panel and sub-pixel technology, applied in the direction of static indicators, instruments, etc., can solve the problems of shortened service life and short service life of the display panel, and achieve the effect of prolonging the working time and service life, and prolonging the service life

Active Publication Date: 2014-07-16
SHANGHAI AVIC OPTOELECTRONICS +1
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AI Technical Summary

Problems solved by technology

Since the service life of the light-emitting diode material in the blue pixel area is the shortest, which is only one-third of the red pixel area and the green pixel area, the service life of the display panel is limited by the service life of the light-emitting diode material in the blue pixel area. also greatly shortened

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  • Display panel and pixel driving method thereof

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Embodiment Construction

[0019] As mentioned in the background, due to the different luminescent materials of the red pixel area, green pixel area and blue pixel area in the pixel unit of the display panel, the service life of the red pixel area, green pixel area and blue pixel area is also different , where the service life of the blue pixel area is the shortest. Under the limitation of the service life of the blue pixel area, the service life of the display panel is also greatly shortened.

[0020] Based on this, the present invention provides a display panel to overcome the above-mentioned problems in the prior art, including:

[0021] a plurality of pixel units, the pixel units include a red pixel area, a green pixel area, a first blue pixel area and a second blue pixel area;

[0022] The pixel drive circuit includes a signal control circuit and a light emission control circuit, and the light emission control circuit includes:

[0023] a first control switch and a second control switch electrica...

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Abstract

The invention provides a display panel and a pixel driving method of the display panel. The display panel comprises a plurality of pixel units and a pixel driving circuit. The pixel units include red pixel areas, green pixel areas, first blue pixel areas and second blue pixel areas. The pixel driving circuit comprises a signal control circuit and a luminescence control circuit. After the brightness of the pixel units formed by the first blue pixel areas decays, a second control switch can be switched on so that the second blue pixel areas can replace the first blue pixel areas to work; after the brightness of the pixel units formed by the second blue pixel areas decays, a first control switch can be switched on so that the first blue pixel areas can replace the second blue pixel areas to work, or the first blue pixel areas and the second blue pixel areas can work at the same time so that the working time and the service life of the pixel units can be prolonged, and then the service life of the display panel can be prolonged.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a display panel and a pixel driving method thereof. Background technique [0002] OLED (organic light-emitting diode, organic electroluminescent device) is a solid semiconductor device that can directly convert electrical energy into light energy. Applied in a new generation of display panels. According to different driving methods, OLED is divided into AMOLED (Active-matrix organic light-emitting diode, active matrix organic electroluminescent device) and PMOLED (Passive-matrix organic light-emitting diode, passive matrix organic electroluminescent device) device). [0003] Existing AMOLED display panels, such as figure 1 As shown, it includes a plurality of pixel units arranged in a matrix, and the pixel units include red pixel areas, green pixel areas and blue pixel areas arranged in sequence along the first direction, wherein the pixel driving circuit is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3225
Inventor 席克瑞李峻刁庚秀程杰朱娟
Owner SHANGHAI AVIC OPTOELECTRONICS
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