62.1: Invited Paper: System Integration of Electronic Paper Displays

Abstract

E Ink's microencapsulated electrophoretic imaging film is the basis for a new class of electronic paper displays (EPD's), with valuable attributes like ultra‐low power consumption, flexibility and excellent readability under a variety of lighting conditions. We will show how a variety of supporting components, such as IC drivers, a dedicated timing controller, software display drivers, touch screen and frontlight can be combined together to incorporate an EPD into a fully functional consumer product.

A controller design for micro‐cup active‐matrix electrophoretic displays

“…[6][7][8][9] A positive pulse voltage drives the white particles moving upward, while a negative pulse voltage causes the white particles to move downward. 10 The time duration of applying the pulse voltage determines the particle position and thus displays the desired gray level. Figure 3 describes the process of displaying a desired gray level.…”

Novel front‐light system using fine‐pitch patterned OLED

“…Although the display qualities of LCDs are excellent without ambient light, the display image is poor when there is a very low contrast ratio, such as under sunlight. Reflective displays such as reflective LCDs, 1,2 electrophoretic displays (EPD) 3,4 and microelectromechanical systems (MEMS) 5,6 have good visibility under sunlight but require a lighting system that allows for visibility under little ambient light. Conventional front-light systems, however, do not have satisfactory optical characteristics -there is no uniformity of brightness within emitting areas, emittance is dependent on the viewing angle, and there is light leakage when viewed from the side of the observer.…”

58.2: In‐Cell Type Adaptive Touch for Electrophoretic Display

“…However, these methods need to use special assembly with additional components, resulting in increasing the thickness, weight, and power consumption. Moreover, there is a much more fallingoff in image quality of the reflective type EPD than that of transmissive type display in terms of brightness, Contrast Ratio and Color Gamut [4]. To solve the above issues for touch screen type display, touch panel integrating photosensor array has been reported.…”