| Title |
A High Image Quality OLED Display with Motion Blur Reduction for Ultra-large Size and High Resolution TVs |
| DOI |
https://doi.org/10.5573/ieie.2024.61.1.83 |
| Keywords |
Motion blur; OLED; MPRT; ABDI; Integrated gate driver |
| Abstract |
Motion blur of OLED displays for large high-resolution TVs was improved by applying the proposed adaptive black data insertion(ABDI) driving method. The high quality OLED display consists of an ABDI drive method and circuit that selectively applies a black data to the desired position, a pixel circuit for compensation technology that keeps the current constant to express uniform luminance on the panel, a driving signal that selectively applies black data, and a integrated gate driver that generates a driving signal necessary for compensation. Although the response time of the OLED device is very high, the moving picture response time(MPRT) of the OLED display panel is affected by the driving frame frequency. The MPRT can be reduced to a maximum of 50 % through on duty adjustment without optionally applying black data to increase the driving frequency. Based on these results, it was confirmed that the MPRT measurement value was reduced from 6.8 ㎳ to 3.4 ㎳ as a result of manufacturing the 65-inch UHD(Ultra High Definition) OLED panel, and it was confirmed that the motion blur phenomenon was improved as a result of the video evaluation. The OLED display with the ABDI driving method and multi-function gate driver proposed in this study could be verified through experiments to be suitable for ultra-large and high resolution TVs where image quality is important. |