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Organic electroluminescence touch control panel, driving method thereof and display device

A touch panel and electroluminescence technology, which is applied in the direction of organic semiconductor devices, circuits, electrical components, etc., can solve the problems of uneven display brightness, affecting the image display effect, etc.

Active Publication Date: 2015-08-12
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the pixel circuit that drives the OLED to emit light, the threshold voltage V of the drive transistor in the pixel circuit will th There is inhomogeneity, which causes the current flowing through each pixel OLED to change, resulting in uneven display brightness, which affects the display effect of the entire image. In addition, generally, the embedded touch screen using self-capacitance touch technology Control panel, the touch electrode has parasitic capacitance, and its parasitic capacitance mainly comes from the signal lines used to transmit various control signals on the touch panel. Therefore, in order to improve the touch performance of the touch panel, it is necessary to reduce the parasitic capacitance of the touch electrode. capacitance

Method used

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  • Organic electroluminescence touch control panel, driving method thereof and display device
  • Organic electroluminescence touch control panel, driving method thereof and display device
  • Organic electroluminescence touch control panel, driving method thereof and display device

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Embodiment Construction

[0046] The specific implementation manners of the organic electroluminescence touch panel provided by the embodiments of the present invention, its driving method and the display device will be described in detail below with reference to the accompanying drawings.

[0047] An embodiment of the present invention provides an organic electroluminescent touch panel, which may include: a pixel driving circuit and an organic electroluminescent structure; wherein,

[0048] Such as Figure 1a As shown, the organic electroluminescent structure may include: an anode layer 1, a cathode layer 2, and a light-emitting layer 3 located between the anode layer 1 and the cathode layer 2; wherein, the cathode layer 2 is divided into a plurality of mutually independent and insulated cathodes (The situation of the cathode layer partition is as follows Figure 1b As shown, the shape of the divided region of the cathode layer is not limited, and the shape of the cathode layer division can be determi...

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Abstract

The invention discloses an organic electroluminescence touch control panel, a driving method thereof and a display device. On the basis that an original organic electroluminescence structure is not changed, a cathode layer of the organic electroluminescence structure is divided into multiple cathodes independent and insulated from each other, in the touch control stage, the cathodes serve as touch control electrodes to sense external touch control, touch control signals are transmitted to a touch control and display integrated chip via leads, and thus, the touch control function is integrated into organic electroluminescence display of a display panel; and in the reset stage, a pixel driving circuit is used to initialize a control end of a driving module; in the compensation stage, the threshold voltage of the driving module is compensated to avoid influence of the threshold voltage change of the driving module on the luminescence brightness of the organic electroluminescence structure; and in the touch control stage, signals of signal lines and external touch control signals sensed by the touch control electrodes are modulated synchronously to eliminate the parasitic capacitance of the touch control electrodes and improve the touch control performance of the touch control panel.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an organic electroluminescence touch panel, a driving method thereof and a display device. Background technique [0002] With the advancement of display technology, more and more active matrix organic light emitting diode (Active Matrix Organic Light Emitting Diode, AMOLED) display panels have entered the market, compared with traditional transistor liquid crystal display panels (Thin Film Transistor Liquid Crystal Display, TFT LCD ) compared with low energy consumption, low production cost, self-illumination, wide viewing angle and fast response, etc., and with the development of touch screen technology and market requirements, the thinning of the overall module is the market development trend, so the touch structure From the touch sensor plug-in type to the touch sensor embedded type, this can not only reduce the thickness of the touch panel but also greatly reduce the...

Claims

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Application Information

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IPC IPC(8): G09G3/32
CPCG09G3/32G09G3/3233G09G2300/0819G09G2300/0861G09G2310/0251G09G2310/0262G09G2320/043G09G2354/00G06F3/0412G06F3/044G06F3/04184H10K59/40H10K59/80521H10K59/80523H10K50/11H10K50/15H10K50/16H10K50/81H10K50/822H10K59/131H10K2102/00H10K2102/103
Inventor 丁小梁董学王海生陈小川杨盛际刘英明刘伟王磊任涛
Owner BOE TECH GRP CO LTD
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