Electroluminescence display screen and method and system for brightness uniformity compensation thereof

A technology of brightness uniformity and compensation method, used in static indicators, cathode ray tube indicators, instruments, etc., can solve problems such as unsatisfactory effects, and achieve improved brightness uniformity compensation effect, improved brightness uniformity, and improved effectiveness. sexual effect

Active Publication Date: 2017-06-13
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of the process (such as the uniformity of film thickness, etc.), the effect of this compensation method is not ideal, especially in the case of low grayscale

Method used

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  • Electroluminescence display screen and method and system for brightness uniformity compensation thereof
  • Electroluminescence display screen and method and system for brightness uniformity compensation thereof
  • Electroluminescence display screen and method and system for brightness uniformity compensation thereof

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0033]The method and system for compensating brightness uniformity of an electroluminescent display screen and an electroluminescent display screen according to embodiments of the present invention will be described below with reference to the accompanying drawings.

[0034] figure 2 It is a flowchart of a brightness uniformity compensation method for an electroluminescent display screen according to an embodiment of the present invention. like figure 2 As shown, the brightness uniformity compensation method may include the f...

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Abstract

The present invention discloses an electroluminescence display screen and a method and system for brightness uniformity compensation thereof. The method comprises: performing aging processing of the display screen; performing test modeling based on the corresponding relation between the aging law of an electroluminescent diode in the display screen and the aging law of a thin film transistor (TFT) in the display screen to obtain a brightness uniformity compensation model; obtaining a first compensation parameter and a second compensation parameter required for compensation of the TFT, calling a brightness uniformity compensation model according to the compensation parameters to obtain the brightness proportion of the current electroluminescent diode; and performing brightness uniformity compensation of the display screen according to the brightness proportion of the current electroluminescent diode. The method provided by the invention can improve the brightness uniformity compensation effect of the display screen and improve the brightness uniformity of the display screen.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a brightness uniformity compensation method and system for an electroluminescence display and an electroluminescence display. Background technique [0002] Each sub-pixel constituting an electroluminescent display includes an electroluminescent diode composed of a light-emitting layer between an anode and a cathode, and a pixel circuit for independently driving the electroluminescent diode. The pixel circuit mainly includes a switching TFT (Thin Film Transistor, thin film transistor), a capacitor and a driving TFT. The switching TFT charges the voltage corresponding to the data signal to the capacitor in response to the scan pulse, and the driving TFT controls the magnitude of the current supplied to the electroluminescent diode according to the voltage charged to the capacitor, thereby adjusting the brightness of the electroluminescent diode, wherein, The brightness of the ele...

Claims

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Application Information

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IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0626G09G3/3275G09G2300/0866G09G2300/0842G09G2320/045G09G2320/0233G09G3/3258G09G3/3291G09G5/10G09G2320/0633
Inventor 宋丹娜孟松朱明毅
Owner BOE TECH GRP CO LTD
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