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Voltage output method and device, controller and storage medium

A technology of voltage output and controller, applied in the direction of instruments, static indicators, etc., can solve the problems of large deviation between the return value and the actual value, obtaining the wrong return value, and data overflow.

Active Publication Date: 2020-06-19
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology

However, the existing voltage or current value of the detected point will be at both ends of the detection range of the detection module, resulting in a large deviation between the returned value and the actual value, and even the voltage value or current value of the detected point will be Exceeding the detection range of the detection module causes data overflow and obtains wrong return values

Method used

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  • Voltage output method and device, controller and storage medium
  • Voltage output method and device, controller and storage medium

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Embodiment Construction

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0054] The terms "first", "second", "third" and "fourth" in the present invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the listed steps or modules, but optionally also includes steps or m...

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Abstract

The invention provides a voltage output method and device, a controller and a storage medium. The method is applied to a pixel circuit comprising a driving thin film transistor. The first voltage andthe second voltage are respectively loaded at the control end and the output end of the driving thin film transistor; obtaining the stabilized output voltage of the output end of the driving thin filmtransistor; judging whether the difference between the output voltage and the standard voltage meets a preset condition or not; when the preset condition is not met; updating the first voltage according to the output voltage and the standard voltage, obtaining a corresponding target voltage, returning to execute the step of loading the first voltage and the second voltage to the control end and the output end of the driving thin film transistor respectively until a preset condition is met, adding all the target voltages to obtain a threshold voltage of the driving thin film transistor, and outputting the threshold voltage; according to the scheme, the accuracy of threshold voltage detection of the driving thin film transistor can be improved, so that the problem of non-uniform display frames of the OLED display can be better solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a voltage output method, device, controller and storage medium. Background technique [0002] The OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display device has the advantages of light weight, thin thickness, bendability, and wide viewing angle range. However, in the OLED display device, there are problems such as unstable threshold voltage of the driving thin film transistor for controlling the light emission of the OLED, aging of the OLED, etc., which makes the current for driving the OLED light emission unstable, resulting in uneven display images of the OLED display. [0003] At present, the industry solves the problem of uneven display of OLED displays by detecting and compensating the current driving OLED to emit light or the voltage related thereto. However, the existing voltage or current value of the detected point will be at both ends of the dete...

Claims

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Application Information

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IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0233
Inventor 杨波梁鹏飞
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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