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

A technology of light-emitting diodes and pixel circuits, applied in static indicators, electrical digital data processing, instruments, etc., can solve the problems of complex manufacturing process, unfavorable product yield and production efficiency, achieve simple timing and improve light transmittance , Improve the effect of product yield

Active Publication Date: 2015-06-10
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

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Embodiment 1

[0057] This embodiment provides an organic light emitting diode pixel circuit, such as figure 1 shown, which includes: which includes:

[0058] A data writing unit, a storage unit, a drive unit, an organic light-emitting diode, a light-emitting control unit, and a touch detection unit; wherein:

[0059] The data writing unit is used to write the power supply voltage signal into the storage unit under the control of the light-emitting control line and the scanning line during the touch detection phase and the organic light-emitting diode light-emitting phase, and write the data line voltage signal into the storage unit under the control of the scanning line. storage unit;

[0060] The storage unit is used to provide voltage for the driving unit;

[0061] The touch detection unit is used to feel the touch under the control of the touch signal level control line during the touch detection stage, and generate a detection signal;

[0062] The drive unit is used to convert the de...

Embodiment 2

[0106] This embodiment provides a display device, which includes the OLED pixel circuit described above, and of course also includes known structures such as a substrate. The display device may be an OLED display device or a product or component with a display function such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, and a navigator using OLED display technology.

[0107] Since the display device of this embodiment includes the above-mentioned OLED pixel circuit, the overall thickness of the display device is thinner, the weight is lighter, and the production cost will be 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 light changes, floating touch can be realized on the display screen.

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Abstract

An organic light emitting diode (OLED) pixel circuit and a driving method thereof, and a display apparatus relate to the technical field of display, and can solve the problems that an existing control circuit and the manufacturing process of a built-in touch screen are complex, so that a touch display apparatus is thinner and lighter. The OLED pixel circuit comprises: a data writing unit, a storage unit, a drive unit, an OLED, a light emitting control unit, and a touch detection unit. The data writing unit is used for writing power voltage signals in the storage unit and writing data line voltage signals in the storage unit. The storage unit is used for providing voltages for the drive unit. The touch detection unit is used for sensing touch and generating detection signals. The drive unit is used for converting the detection signals into touch output signals, the touch output signals are output through the touch detection unit, and meanwhile the drive unit is further used for providing drive currents for the OLED. The light emitting control unit is used for enabling the drive unit and the OLED to be connected.

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 most simple, convenient and natural human-computer interaction device, and has been widely used in various electronic products, such as mobile phones, notebook computers, digital cameras and so on. Touch screens can be divided into two types according to technology: external touch screens and in-cell touch screens. The external touch screen is to install a touch device on the display panel. The touch device generally includes a touch pad and a protective layer (such as diamond glass). [0003] The built-in touch screen technology embeds the function of the touch panel sensing signals into the pixel circuit, and by loading the control circuit, the display screen has the ability to sense touch signals. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
CPCG06F3/0412G06F3/04166G06F3/042G09G3/3233G09G2300/0819G09G2300/0842G09G2300/0861G09G2320/0233G09G2320/0295G09G2360/148
Inventor 周全国祁小敬
Owner BOE TECH GRP CO LTD
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