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Amoled white balance adjustment method and adjustment system

An adjustment method and adjustment system technology, applied in the field of AMOLED control, can solve the problems of large measurement workload and inconvenient implementation, and achieve the effects of convenient implementation, extended service life, and convenient detection

Active Publication Date: 2017-11-28
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, what the present invention aims to solve is that in the prior art, the measurement workload brought about by measuring the number of gray scale displays of active matrix organic light emitting diodes that withstand a certain value or more within a predetermined period of time to determine the degradation of the material is very inconvenient to implement. Technical problem, provide an adjustment method and adjustment system for AMOLED white balance

Method used

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  • Amoled white balance adjustment method and adjustment system
  • Amoled white balance adjustment method and adjustment system
  • Amoled white balance adjustment method and adjustment system

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Experimental program
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Embodiment 1

[0037] See Figure 4 What is shown is an AMOLED white balance adjustment method according to an embodiment of the present invention, which specifically includes the following steps:

[0038] S1: Obtain the brightness and life decay curves of the red, green and blue polymer light-emitting materials in AMOLED; the brightness and life decay curves will be obtained after any AMOLED device is produced. Therefore, the application can be directly Using the brightness and life attenuation curves detected before the product leaves the factory, no separate test is required.

[0039] S2: Count the working time of each pixel in the AMOLED to obtain the working time of the pixel.

[0040] S3: Determine whether the working time of the pixel reaches the predetermined adjustment time, if it reaches the predetermined adjustment time, then go to step S4; otherwise, repeat this step.

[0041] S4: Adjust the current flowing through the pixel according to the brightness and lifetime decay curve to maintai...

Embodiment 2

[0044] As a second embodiment of the present invention, on the basis of the above-mentioned embodiment 1, the method for adjusting the white balance of AMOLED of this embodiment is used to obtain the brightness and lifetime attenuation curves of the red, green and blue polymer light-emitting materials in AMOLED. After that, it also includes the steps of taking out the brightness values ​​of the three colors on the brightness and life attenuation curve at a predetermined time interval and calculating the brightness attenuation ratio; theoretically, the shorter the time interval, the more accurate the white balance adjustment, but at the same time the IC or CPU The calculation amount will be greater. Preferably, the interval time is 50hs. The adjustment of the current flowing through the pixel according to the brightness and life attenuation curve is specifically performed on the current flowing through the pixel according to the brightness attenuation ratio. Adjustment.

Embodiment 3

[0046] On the basis of the above-mentioned embodiment 2, in the method for adjusting the white balance of the AMOLED of this embodiment, each pixel in the AMOLED is clocked by the timing signal carried by the IC.

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Abstract

An adjustment method and adjustment system for an AMOLED white balance of the present invention, first, obtain the brightness and life decay curves of the red, green and blue polymer luminescent materials in the AMOLED, and then adjust the time and brightness according to the predetermined adjustment time and brightness during use and the lifetime attenuation curve to adjust the current flowing through the pixel to maintain the white balance of the pixel. Since the brightness and life decay curve of AMOLED devices must be tested before leaving the factory, there is no need for additional measurement. When using it, it is only necessary to automatically adjust the white balance according to whether the working time reaches the preset adjustment time. The timing detection is convenient, the workload is small, and the implementation is convenient.

Description

Technical field [0001] The invention relates to AMOLED control, in particular to an adjustment method and an adjustment system of AMOLED white balance. Background technique [0002] AMOLED (full name in English: Active-matrix organic light-emitting diode means active matrix organic light-emitting diode or active matrix organic light-emitting diode), is a display technology used in TVs and mobile devices. Among them, AM (active matrix or active matrix) refers to the pixel addressing technology behind it, and OLED (organic light emitting diode) describes the specific type of thin film display technology-organic electroluminescent display. Organic light emitting display devices (OLED) are active light emitting devices. Compared with the current mainstream flat panel display technology Thin Film Transistor Liquid Crystal Display (TFT-LCD), OLED has the advantages of high contrast, wide viewing angle, low power consumption, and thinner volume. It is expected to become the next genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/10G09G3/3233
Inventor 刘敏魏朝刚
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD