Bezel free design of organic light emitting diode display via a‐InGaZnO gate driver circuit integration within active array

Abstract

In this article, we described an innovative design technology of active matrix organic light emitting diode (AMOLED) display, to provide a bezel free design. We designed gate driver circuit of amorphous indium‐gallium‐zinc oxide thin‐film transistors (TFTs) not on the bezel area but within the active array. Although we applied challengeable design, no degradation of electrical/optical properties of panel was observed. Because we effectively prevented capacitive coupling and interference between the emission circuit and integrated gate driver circuit in active array, finally, we successfully demonstrated a bezel free designed AMOLED display of 18.3″ HD (1366 × 768) driven by a‐InGaZnO TFTs.

P‐4: The Technology of High‐Mobility Oxide TFT for 14inch AMOLED Display

“…The gated drive circuit of OLED displays is much more complex than that of LCD displays due to the need of realizing different driving functions. Gated drive circuit applied as it offers several advantages such as narrow bezel size, higher productivity, and reduced manufacturing costs [8]. However, placing a complex circuit with oxide TFTs in a restricted area is limited in terms of the high resolution of medium-area OLED displays.…”

Indium–gallium–zinc–oxide thin-film transistors: Materials, devices, and applications

“…15(b) shows the transfer curves of the dual-gate a-IGZO-based TFT. From the curves, the V th of the dual-gate a-IGZO-based TFTs shifted to the positive bottom-gate voltage direction by applying negative top-gate voltage, and to the negative bottom- [62,121,122] .…”

“…13. (Color online) Picture images of the display panels of large size, high-resolution and narrow bezel[62,121,122] .…”

Fabrication of practical deformable displays: advances and challenges

“…Portability, user-convenience, and multi-functionality in daily life are the important issues in the trend. When it comes to portability, displays have made remarkable transition over the past decade from the flat panel liquid crystal displays (LCDs) 1 to the thin bezel-free display 2 , 3 . Displays are now evolving to have new form factors, with the advent of the self-luminous displays made of organic light emitting diodes (OLEDs) 4 , quantum dots LEDs (QLEDs) 5 , and micro LEDs (µLEDs) 6 .…”