AMOLED white balance adjusting method and 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, small workload and extended service life

Active Publication Date: 2015-06-24
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 adjusting method and system
  • AMOLED white balance adjusting method and system
  • AMOLED white balance adjusting method and system

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Embodiment 1

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

[0038] S1: Obtain the brightness and lifetime decay curves of the red, green and blue three-color polymer luminescent materials in AMOLED; wherein the brightness and lifetime decay curves will be obtained after any AMOLED device is produced, so the application can be directly Using the brightness and life decay curve detected before the product leaves the factory, there is no need to conduct separate tests.

[0039]S2: Timing the work of each pixel in the AMOLED to obtain the work time of the pixel.

[0040] S3: Judging whether the working time of the pixel reaches the predetermined adjustment time, if so, 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 maintain the white bala...

Embodiment 2

[0044] As the second embodiment of the present invention, on the basis of the above-mentioned embodiment 1, the adjustment method of the AMOLED white balance of the present embodiment obtains the brightness and life decay curves of the red, green and blue three-color polymer luminescent materials in the AMOLED After that, it also includes the step of taking out the brightness values ​​of the three colors at predetermined time intervals on the brightness and life decay curve and calculating the brightness decay ratio; in theory, the shorter the time interval, the more accurate the white balance adjustment, but at the same time, the IC or CPU The amount of calculation will be greater. Preferably, the selected interval time is 50hs. The adjustment of the current flowing through the pixel according to the brightness and life decay curve is specifically to adjust the current flowing through the pixel according to the brightness decay 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 the present embodiment, each pixel in the AMOLED is clocked by a timing signal provided by the IC.

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Abstract

The invention discloses an AMOLED white balance adjusting method and system. The method comprises the steps of obtaining a brightness and service life attenuation curve of red-green-blue macromolecule light-emitting materials in an AMOLED, then adjusting the current flowing through a pixel according to the preset adjusting time and the brightness and service life attenuation curve during usage, and maintaining the while balance of the pixel. Due to the fact that the brightness and service life attenuation curve of the AMOLED must be tested before delivery of any product, no extra measurement is needed; during usage, automatic adjustment of the while balance is performed only by judging whether the working time reaches the preset adjusting time, the adjusting time detection is convenient, workloads are small, and implementation is convenient.

Description

technical field [0001] The invention relates to AMOLED control, in particular to an adjustment method and system for AMOLED white balance. Background technique [0002] AMOLED (English full name: 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 (OLEDs) 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-generation flat-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/10G09G3/32G09G3/3233
Inventor 刘敏魏朝刚
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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