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Organic light-emitting diode pixel circuit, method for driving same and display device

一种发光二极管、像素电路的技术,应用在阴极射线管指示器、静态指示器、电数字数据处理等方向,能够解决不利产品良率和生产效率、制造工艺复杂等问题,达到提高光透过率、时序简单、控制信号少的效果

Active Publication Date: 2013-11-27
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problems to be solved by the present invention include, aiming at the problem that the control circuit and manufacturing process of the built-in touch screen in the prior art are relatively complicated, which is not conducive to improving the product yield and production efficiency, to provide a relatively simple control circuit and manufacturing process Organic light-emitting diode pixel circuit, driving method thereof, and display device

Method used

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  • Organic light-emitting diode pixel circuit, method for driving same and display device
  • Organic light-emitting diode pixel circuit, method for driving same and display device
  • Organic light-emitting diode pixel circuit, method for driving same and display device

Examples

Experimental program
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Embodiment 1

[0054] This embodiment provides an organic light emitting diode pixel circuit, which includes:

[0055] A data writing unit, a driving unit, an organic light emitting diode, a first control unit, a second control unit and a touch detection unit; wherein:

[0056] The first control unit is used to guide the power supply voltage signal into the data writing unit under the control of the scan line in the touch detection stage and the organic light-emitting diode light-emitting stage, and conduct the organic light-emitting diode and the driving unit in the organic light-emitting diode light-emitting stage. Pass;

[0057] The data writing unit is used to import the power supply voltage signal under the control of the first light-emitting control line in the touch detection stage and the organic light-emitting diode light-emitting stage, and import the data line voltage signal under the control of the scan line and the second light-emitting control line , and is also used to provid...

Embodiment 2

[0097] This embodiment provides a display device, which includes the above-mentioned organic light emitting diode pixel circuit, and of course, also includes a known structure such as a substrate. The display device may be an OLED display device or a mobile phone, tablet computer, TV, monitor, notebook computer, digital photo frame, navigator and other products or components with display function using OLED display technology.

[0098] Since the display device of this embodiment includes the above-mentioned organic light emitting diode pixel circuit, the overall thickness of the display device is thinner, the weight is lighter, and the production cost is further reduced. By arranging the above circuit in each sub-pixel, the touch sensitivity of the display screen can be significantly improved, and since the photodiode works by sensing changes in light, floating touch can be realized on the display screen.

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Abstract

The invention provides an organic light-emitting diode pixel circuit, a method for driving the organic light-emitting diode pixel circuit and a display device, and belongs to the technical field of display. The organic light-emitting diode pixel circuit, the method and the display device can solve the problem that in the prior art, a control circuit of an in-cell touch screen panel and the manufacturing technology of the in-cell touch screen panel are complex. A first control unit of the organic light-emitting diode pixel circuit is used for importing power source signals into a data write-in unit and connecting an organic light-emitting diode and a driving unit; the data write-in unit is used for importing power source voltage signals and data line voltage signals, and meanwhile is used for providing voltages for the driving unit; a touch detection unit is used for sensing touch and generating detection signals; the driving unit is used for converting the detection signals into touch control output signals and outputting the touch control output signals to a driving integrated circuit through the touch detection unit, and meanwhile, the driving unit is further used for providing driving currents for the organic light-emitting diode; a second control unit is used for connecting the driving unit and a grounding level. The organic light-emitting diode pixel circuit and the method enable the touch display device to be thinner and lighter.

Description

technical field [0001] The invention belongs to the technical field of touch display, and in particular relates to an organic light emitting diode pixel circuit, a driving method thereof, and a display device. Background technique [0002] Touch screen panel is currently the simplest, convenient and natural human-computer interaction device, and has been widely used in various electronic products, such as mobile phones, notebook computers, digital cameras, etc. Touch screens can be divided into two categories according to technology: external (external) touch screens and built-in (in-cell) touch screens. The external touch screen is to set a touch device on the display panel. The touch device generally includes a touch panel and a protective layer (such as diamond glass). The touch panel is set on the display panel. The touch panel works by sensing changes in light or pressure. [0003] The built-in touch screen technology is to embed the function of the touch panel sensing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G06F3/041
CPCG06F3/0412G06F3/04184G06F3/042G09G3/3225G09G2300/0819G09G2300/0842G09G2300/0852G09G2300/0861G09G2310/0251G09G2360/142G09G3/3208G09G5/18G09G2300/0404
Inventor 周全国祁小敬
Owner BOE TECH GRP CO LTD
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