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Voltage output method, device, controller and storage medium

A voltage output and storage medium technology, applied in the direction of instruments, static indicators, etc., can solve the problems of obtaining wrong return value, data overflow, large deviation between return value and actual value, etc., to solve the problem of uneven display screen, The effect of improving accuracy

Active Publication Date: 2021-05-07
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

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  • Voltage output method, device, controller and storage medium
  • Voltage output method, 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, device, controller and storage medium, which are applied to a pixel circuit including a driving thin film transistor, and the first voltage and the second voltage are respectively applied to the control terminal and the output terminal of the driving thin film transistor to obtain the driving The output voltage of the output terminal of the thin film transistor is stabilized, and it is judged whether the difference between the output voltage and the standard voltage satisfies the preset condition. When the preset condition is not met, the first voltage is updated according to the output voltage and the standard voltage, and the corresponding target is obtained. voltage, and return to the step of applying the first voltage and the second voltage to the control terminal and the output terminal of the driving thin film transistor, respectively, until the preset condition is met, then adding all the target voltages to obtain the threshold voltage of the driving thin film transistor, and Output threshold voltage; this solution can improve the detection accuracy of the threshold voltage of the driving thin film transistor, so as to better solve the problem of uneven display of the OLED display.

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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Patent Type & Authority Patents(China)
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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