57.3: Improvement of Image Sticking for High Standard Automotive Application

Abstract

As the rapid growth of LCD market, higher level of image quality is required. Image sticking is a phenomenon that a faint outline of previously displayed image remains visible on the screen as the frame is refreshed and it is an unvarying problem as the birth of LCD display. Furthermore, it has been a critical issue for high standard automotive application. In essence, the image sticking arises from the residual electric field (DC) in liquid crystal which caused by the ordered arrangement of ionic charges or dielectric polarization under the external DC offset voltage. In this paper, we will summarize the mechanism of the the residual DC voltage generation and image sticking. And an optimum Vcom setting method minimizing external DC offset voltage is introduced to improve image sticking.

10.4: A 2.3‐inch Automotive AMOLED Display with Small Bending Radius

“…Organic light-emitting diodes (OLEDs) with flexible substrate and thin film encapsulation (TFE) can easily be constructed for vehicle applications, even in foldable and roll-able shapes. Furthermore, the OLEDs have more excellent optical performance than LCDs, such as the rapid response time in wide temperature range, large viewing angle, and so on [2][3][4] . Based on these outstanding characteristics, AMOLED display was considered as the most prospective candidate to realize the demands for future automotive display.…”

11‐1: High Reliability Flexible AMOLED Display with Algorithm Compensation for Automotive Application

“…Organic Lightemitting Diodes (OLEDs) with flexible substrate and thin film encapsulation (TFE) can easily be constructed for automotive applications, even in foldable and rollable shapes. Furthermore, the OLEDs have more excellent optical performance than LCDs, such as the rapid response time in wide temperature range [4] . We had demonstrated the 12.3 inch automotive AMOLED panel which included 4 gate driver ICs and 6 source driver ICs on the SID2018 [5] .…”