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Conditioning module, test method and display device

A display device and module technology, applied to static indicators, instruments, etc., can solve the problems of large differences in brightness and color coordinates of display devices, etc., and achieve the effect of stable display color, reduced value, and stable power supply voltage

Active Publication Date: 2021-11-16
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide an adjustment module, a test method and a display device to solve the problems in the prior art when the OPR of the display device is changed, which causes the brightness and color coordinates of the display device to be different due to the different IR voltage drop of the power supply voltage at different OPRs. The problem of big difference before and after waiting

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  • Conditioning module, test method and display device
  • Conditioning module, test method and display device
  • Conditioning module, test method and display device

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0048] The transistors used in all embodiments of the present invention may be triodes, thin film transistors or field effect transistors or other devices with the same characteristics. In the embodiment of the present invention, in order to distinguish the two poles of the transistor except the control pole, one pole is called the first pole, and the other pole is called the second pole.

[0049] In actual operation, when the transistor is a triode, the contr...

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Abstract

The invention provides an adjustment module, a testing method and a display device. The adjustment module is applied to a display device, and the display device includes a power management integrated circuit and a display panel, and the display panel includes a pixel circuit; the power management integrated circuit outputs a power supply voltage to the pixel circuit through a power supply voltage output terminal; it The feature is that the adjustment module includes a feedback circuit and an adjustment circuit; the feedback circuit is used to feed back the voltage at a specific point on the power supply voltage output line to the adjustment circuit; the power supply voltage output line is the power supply voltage output terminal The connection line with the pixel circuit; the voltage at a specific point on the power supply voltage output line is the feedback voltage; the adjustment circuit is used to receive the feedback voltage through the feedback voltage input terminal, and according to the feedback voltage and adjusting the power supply voltage output by the power management integrated circuit through the power supply voltage output terminal. The present invention stabilizes the ability of the display device to display colors.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an adjustment module, a testing method and a display device. Background technique [0002] Another important evaluation indicator for evaluating the display uniformity of an AMOLED (Active-matrix organic light-emitting diode, active matrix organic light-emitting diode) display device is ΔE4, which is used to evaluate the OPR (Open Pixel Ratio, light-emitting pixel) of an AMOLED display device When the proportion of all pixels) changes, the magnitude of the difference in brightness and color coordinates of the AMOLED display device, the smaller the value of ΔE4, the better the color retention and the more accurate the color display. Contents of the invention [0003] The main purpose of the present invention is to provide an adjustment module, a test method and a display device to solve the problems in the prior art when the OPR of the display device is changed, which causes th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225G09G3/00
CPCG09G3/006G09G3/3225
Inventor 姜燕妮
Owner BOE TECH GRP CO LTD