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Display data compensation method, display data compensation device and display device

A technology for displaying data and display devices, applied to static indicators, instruments, etc., can solve problems such as difficulty in obtaining mobility and threshold voltage, afterimage or Mura, etc., and achieve the effect of improving the quality of image display

Active Publication Date: 2019-06-28
BOE TECH GRP CO LTD
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  • Claims
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Problems solved by technology

[0009] In view of this, the present invention provides a display data compensation method, a display data compensation device and a display device, which are used to solve the existing external compensation method, which is difficult to obtain accurate mobility and threshold voltage, so that there is afterimage under low brightness conditions or problems with Mura

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  • Display data compensation method, display data compensation device and display device
  • Display data compensation method, display data compensation device and display device
  • Display data compensation method, display data compensation device and display device

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Embodiment Construction

[0073] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0074] The display device in the embodiment of the present invention may be an OLED display device. The OLED display device includes: an OLED display panel and a driving device for driving the OLED display panel to emit light. The OLED display panel includes scanning lines, data lines, sensing line and multiple sub-pixels, please refer to figure 1 , figure 1 It is a schematic diagram of t...

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Abstract

The invention provides a display data compensation method, a display data compensation device and a display device, and the method comprises the steps: inputting test display data to sub-pixels in a frame idle stage; acquiring actual sensing data sensed from the sub-pixels after a preset charging duration; determining temperature change values of the sub-pixels according to the test display data,the actual sensing data and pre-stored compensation reference data; calculating a threshold voltage compensation value and a migration rate compensation value according to the temperature change valueof the sub-pixel and the pre-stored threshold voltage and migration rate change quantity of the driving transistor of the sub-pixel along with the temperature; and at the frame display stage, according to the threshold voltage compensation value and the mobility compensation value, compensating display data to be output to the sub-pixels. According to the invention, in actual display of the display device, the influence of temperature change on the mobility and the threshold voltage is considered, so that a relatively accurate mobility compensation value and a relatively accurate threshold voltage compensation value are obtained, and the image display quality of the display device is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display data compensation method, a display data compensation device and a display device. Background technique [0002] OLED (Organic Light Emitting Diode) display devices are widely accepted by people because of their excellent functions such as wide color gamut, wide viewing angle, thinness, lightness, low power consumption, high contrast, and bendability, and gradually become the development of future display technology. direction. However, in the field of large-size OLED display devices, due to its oxide process, the instability of TFT (thin film transistor) characteristics is its biggest disadvantage, and the instability of TFT will cause a decrease in picture quality. [0003] Since the OLED display device is a display method in which the voltage controls the current and then the brightness, the brightness is not only related to the display voltage, but also related to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3258
Inventor 杨飞韦晓龙陈伟
Owner BOE TECH GRP CO LTD
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