Adjusting method of gamma voltage for OLED displaying device

Abstract

The invention provides an adjusting method of gamma voltage for an OLED displaying device and relates to the technical field of displaying technologies. User autonomic adjusting can be achieved, the method is easy to implement, returning to factory is of no need, and accordingly maintaining cost is effectively lowered. The method comprises the steps that testing pictures stored in the OLED displaying device in advance are obtained, and first data information of the testing pictures is extracted; the first data information comprises current parameters or optical parameters; the first data information and second data information of testing pictures stored in advance before OLED displaying device aging are subjected to contrastive analysis processing, and the aging coefficient of the OLED displaying device is obtained; the second data information comprises current parameters or optical parameters; and a gamma voltage value group corresponding to the aging coefficient is obtained, gamma voltage values are output to a gamma integrated circuit of the OLED displaying device, and adjusting of the gamma voltage is completed. The adjusting method is used for adjusting of the gamma voltage of the OLED displaying device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for adjusting the gamma voltage of an OLED display device. Background technique [0002] In the field of display technology, OLED (Organic Light-Emitting Diode, organic electroluminescent diode) display devices have wide color gamut, wide viewing angle, thin, light weight, low energy consumption, high response speed, high contrast, bendable, etc. It has attracted much attention due to its characteristics, and has gradually become one of the main development directions in the display field. [0003] In the process of practical application, as the display time prolongs, the luminescent material of the OLED display device will gradually age, resulting in a decrease in luminous efficiency, which greatly affects the display effect. The solution to the above problems is mainly to restore the display effect to normal by adjusting the gamma voltage; that is, at present, those ...

AI Technical Summary

Problems solved by technology

[0004] However, the existing OLED display device only contains a set of gamma voltage data, so after the OLED display device is aged, it must be returned to the factory to adjust the gamma voltage

On this basis, the adjustment of the gamma voltage needs to collect the brightness of the image through the brightness acquisition device, convert it into gray scale (that is, the gamma voltage value) after calculation, and re-download the data to the TCON (Timer Control Register, timing control register) integrated circuit, the adjustment process is relatively cumbersome

It can be seen that when adjusting the gamma voltage of the OLED display device through the above method, it must be returned to the factory for complex adjustment, which is not only troublesome but also expensive for the user's use and after-sales maintenance.

Images