P‐19: A New Small Sized Integrated Scan & Emission Driver for Compact AMOLED Displays

Abstract

A new small sized integrated scan driver for small sized and high definition LCD and AMOLED display is proposed in this paper. By introducing a new simple circuit, the number of output buffers (n) of a scan driver shares only one shift register. Therefore, the number of total shift registers is reduced by 1/n and thus total area for scan driver is significantly reduced by 40 %. By applying the proposed circuit, a new small sized scan & emission driver is also proposed. This driver can precisely control the initial time for sampling of threshold voltage of DTFT in a pixel. The proposed drivers were verified by SPICE simulation by using LTPS P-type TFT models.

A scan driver including light emission control integrated by metal-oxide thin-film transistors

“…As the resolution increases, the area left for the TFT-integrated circuit becomes smaller and smaller. The integrated scan driver can not only be designed for a narrow bezel but also designed to achieve more functions [9][10][11], such as MPRT enhancement and sensing operation. The method of integrating the light emission control module in the scan driver will enable the pixel driver to occupy less control signal resources and a smaller area on the array.…”

P‐26: A New Modulable Integrated Multi‐Function Scan Driver for High‐Resolution AMOLED Display with LTPS TFTs

“…Therefore, dual outputs with small size drivers are in necessary to reduce the peripheral area and to implement compact and high density displays. Huh et al present a method that making several buffers share a shifter register (S/R), reducing total area for scan driver by 40% [9]. However, the time interval between outputs generated by a common S/R is fixed, which limits the flexibility of the scan driver.…”