67.4: Fast Transient Vth Compensation Circuit for AMOLED Displays with P‐type GOA Driving

Abstract

A new approach has been developed to improve AMOLED's image quality. Fast Transient Compensation Mechanism (FTCM) provides a good ability on Vth compensation, based on sub‐pixel circuit structure consisting of 6 TFTs and 1 capacitor. Furthermore, the P‐type GOA in AMOLED panel is designed for pixel driving and enhances displaying quality at low gray scale.

P‐216: Late‐News Poster: UHPD Technology for Enhanced User Experience of Near‐Eye Applications

“…With GOA circuits working well, arrayed pixel could be controlled through specific driving scheme. Pixel circuit plays an important role improving bad image quality caused by intrinsic process defect or uniformity issue in backplane [6], we propose a pixel circuit for compensating Vth variation and IR-drop issue, as shown in Fig. 5(d).…”

External compensation for high‐resolution active matrix organic light‐emitting diode displays

“…To achieve good uniformity in the display, these TFT variations need to be eliminated by employing a compensation method. Several compensation techniques already exist, both in‐pixel 2–4 and external 5–7 . Although in‐pixel compensation techniques yield good uniformity, they usually require additional TFTs in the pixels, resulting in larger pixel sizes 8 .…”

45.3: Invited Paper: Going Towards High‐Resolution, Uniform AMOLED Displays with a High Brightness Range

“…However high resolution should not compromise on uniformity. In-pixel compensation techniques usually require additional transistors in the pixel, yielding e.g., 6 [1,2] or 8 [3] transistors per subpixel. Since the additional transistors reduce the achievable resolution, these compensation methods are not desirable for high-resolution applications.…”