Pixel circuit

A technology of pixel circuits and capacitors, applied in the field of pixel circuits, can solve the problems of increased power consumption of organic light emitting diode panels and the like

Active Publication Date: 2018-07-24
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the pixel circuit of the existing OLED panel has only one data line. If the OLED panel is to be operated in a high-brightness mode, the data voltage of the data line required by each pixel in the OLED panel can be increased. , but this method may exceed the range that an integrated circuit (integrated circuit, IC) can support; or, it may also increase the power consumption of the OLED panel by increasing the operating voltage required by the IC.

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Embodiment Construction

[0022] The following is a detailed description of the embodiments in conjunction with the accompanying drawings, so as to better understand the aspect of the present case, but the provided embodiments are not intended to limit the scope of the present case, and the description of the structure and operation is not intended to limit the scope of the present case. The order of execution, any recombination of the components, and the resulting devices with equal efficacy are all within the scope of this application.

[0023] As used herein, "about", "approximately", "approximately about" or "substantially" are generally generally within about twenty percent, preferably within about ten percent, of the error or range of the value of the index , and more preferably within about five percent. Unless explicitly stated in the text, the numerical values ​​mentioned are considered as approximations, that is, the error or range expressed as "about", "approximately", "approximately" or "su...

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Abstract

The invention discloses a pixel circuit. The pixel circuit includes a light emitting diode, a first transistor, a capacitor, a compensation circuit, a second transistor and a third transistor. The second end of the first transistor is electrically coupled to the anode end of the light emitting diode. The first end of the capacitor is electrically coupled to the gate terminal of the first transistor. The compensation circuit is coupled between the second end and the gate end of the first transistor. The first end of the second transistor is configured to receive the first data voltage, and thesecond end of the second transistor is electrically coupled to the first end of the first transistor. The first end of the third transistor is configured to receive the second data voltage, and the second end of the third transistor is electrically coupled to the second end of the capacitor.

Description

technical field [0001] The present invention relates to a pixel circuit, in particular to a pixel circuit with light emitting diodes. Background technique [0002] Generally speaking, if the OLED panel is operated in a high-brightness environment, the OLED panel must be operated in a high-brightness mode in order for the user to clearly see the content displayed by the OLED panel. [0003] However, the pixel circuit of the existing OLED panel only has one data line. To operate the OLED panel in the high brightness mode, the data voltage of the data line required by each pixel in the OLED panel can be increased by increasing the data voltage. However, this method may exceed the range supported by an integrated circuit (IC); or, by increasing the operating voltage required by the IC, the power consumption of the OLED panel will increase. SUMMARY OF THE INVENTION [0004] An embodiment of the present invention discloses a pixel circuit including a light emitting diode, a fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3233
CPCG09G3/3233
Inventor 郑贸薰
Owner AU OPTRONICS CORP
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