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Method, device and system for OLED efficiency attenuation compensation in display panel

A display panel, efficiency attenuation technology, applied in static indicators, instruments, etc., can solve the problems of uneven display, luminous efficiency attenuation, etc.

Active Publication Date: 2021-04-27
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a method, device and system for compensating OLED efficiency attenuation in display panels due to the problems of attenuation of luminous efficiency of OLED devices and uneven display during the use of traditional display panels.

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  • Method, device and system for OLED efficiency attenuation compensation in display panel
  • Method, device and system for OLED efficiency attenuation compensation in display panel
  • Method, device and system for OLED efficiency attenuation compensation in display panel

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Embodiment Construction

[0045] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific implementation manners of the present application will now be described in detail with reference to the accompanying drawings.

[0046] The OLED efficiency attenuation compensation method in the display panel provided by this application can be applied to such as figure 1 shown in the application environment. Wherein, the processor 102 is connected to the display panel 104 . The processor 102 may be, but not limited to, a single-chip microcomputer or an ARM (Advanced RISC Machine, RISC microprocessor). The display panel 104 may be implemented by an independent display panel or a combination of display devices composed of multiple display panels.

[0047] In one embodiment, such as figure 2 As shown, a method for compensating OLED efficiency attenuation in a display panel is provided, and the method is applied to figure 1 The processor 102...

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Abstract

The present application discloses a method, device and system for compensating OLED efficiency attenuation in a display panel. The method includes the following steps: according to the drain voltage loaded on the driving TFT with a preset number of gray scales, and the output of each corresponding drain voltage current to obtain the IV curve of the OLED device; compare the IV curve with the IV curve database model to determine the target curve and the first matching curve of the OLED device; determine the LV curve in the database model according to the corresponding measurement time point of the first matching curve The second matching curve corresponding to the measurement time point; based on the second matching curve, a target voltage corresponding to the target brightness is obtained; and based on the target curve, a target current corresponding to the target voltage is obtained; based on the characteristic curve of the driving TFT, the target voltage is processed, and the target The current and the drain voltage are used to obtain the compensated gate voltage of the driving TFT. The present application can realize the compensation for the attenuation of the luminous efficiency of the OLED device, improve the display effect of the display panel, and make the display of the display panel uniform.

Description

technical field [0001] The present application relates to the field of display panel technology, and more specifically, to a method, device and system for compensating OLED efficiency attenuation in a display panel. Background technique [0002] Organic light emitting diode (OLED) is a self-luminous display technology, which has the advantages of wide viewing angle, high contrast ratio, low power consumption, and bright colors. Due to these advantages, the proportion of active matrix organic light emitting diode (AMOLED) in the display industry is increasing year by year. However, as the display panel (panel) is used for a longer period of time, the luminous efficiency of the OLED device will decrease significantly, and eventually it will fail due to problems such as uneven display. [0003] During the implementation process, the inventors found at least the following problems in the traditional technology: during the use of the traditional display panel, the luminous effic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0233G09G2320/043
Inventor 张留旗
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD