A pixel circuit and a gate driver on array for light-emitting display are presented. By simultaneously utilizing top-gate n-type oxide and p-type lowtemperature polycrystalline silicon (LTPS) thin-film transistors (TFTs), the circuits provide high refresh rate and low power consumption. An active-matrix LED (AMOLED) panel with proposed circuits is fabricated, and driving at various refresh rate ranging from 1 to 120 Hz could be achieved.

A fabrication method for double-microlens arrays with self-alignment technology (SAT) is proposed. To satisfy the tolerance of the alignment of a two-layer-lens array, we developed a new fabrication method without an alignment process. Using SAT, we achieved a brightness increase of 30% compared with the conventional single-layer microlens array.

We have developed a 736ppi (WQXGA) LCD which pixel density reach 4k smart-phone for the first time using oxide semiconductor. Utilizing the highly scalable channel etch type InGaZnO-TFT and a novel transparent contact structure, more than 50% of the aperture ratio was achieved using patterning dimensions of a manufacturing backplane.

A Pixel Circuit and a Gate Driver on Array for light-emitting display are presented. By simultaneously utilizing Top-Gate n-type Oxide and p-type LTPS TFTs, the circuits provide high refresh rate and low power consumption. An AMOLED panel with proposed circuits is fabricated and driving at various refresh rate ranging from 1Hz to 120Hz could be achieved.

Holographic data storage capacity is proportional to the thickness of a photopolymer recording medium. To maximize the use of the performance of a photopolymer recording medium, a multiplexing technique that can record holograms in the thickness direction of such a medium is demanded. To this end, we propose a new multiplexing method that combines shift, peristrophic, and focus-shift multiplexings, and successfully records holograms in the thickness direction of the medium by controlling the incidence angle of the reference beams. We confirm that the holograms recorded are well spatially separated in the thickness direction of the medium, and that up to 50 holograms can be recorded.