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A patterned inverted cone (PIC) structure on flexible substrate produced by focused femtosecond laser was demonstrated for the out-coupling efficiency enhancement of electroluminescent devices. A green Organic Light-Emitting Diode (OLED) with PIC structure on flexible substrate was employed to verify the effect of the proposed method, which exhibited a current efficiency enhancement by a factor of 2.2 at 10 mA/cm2 without any emission spectrum altered, compared with conventional flexible OLED. The PIC structure is compatible with current device fabrication process and applicable for full color OLED display and lighting.

A compact light guide plate (LGP) with special designed microstructures and dual collimated light sources was proposed to achieve an adjustable riming angle backlight for eco-display. The micro-prisms were utilized to guide the emitting rays toward normal viewing cones while a set of strip patterned diffuser toward wide viewing cones. The uniformity of spatial luminous can reach 91% / 87% at view cone of ±3/±60 deg. in each mode. Only 5% of power consumption in narrow viewing angle mode was needed to keep the same luminance in wide viewing angle mode.

A novel dual-layer strip type OLED backlight acting as a parallax barrier and a light source was proposed for 2D/3D switchable display. This architecture not only achieved a high uniformity of 90% in 2D mode, but also increased optical efficiency by a factor of two with a low crosstalk (

A novel highly collimated backlight module transforming a point light source into a planar light source by means of a double wedge-shaped light-guide plate (LGP) was designed. The uniformity of spatial luminous can reach 80.5% at view cone of ±1.8 deg. The Gray-half-tone technology can be used to fabricate the microstructures for mass productions.

A simple one glass solution with just a single layer of sensors for projected-capacitive touch panels has been proposed. It can effectively solve the coordinate shifting existing in touch panels with just a single layer of triangular sensors, thus of great potential for large size touch panels.

The scanning liquid crystal (LC) prism type 3D displays may solve the resolution degradation problem but introduce another issue, dynamic crosstalk. To improve the 3D perception, a novel impulsive driving backlight method with multi-electrode driving structure scanning LC prism is proposed. With this method, the dynamic crosstalk can be reduced by 35.2%.

The effect of threshold temperature on the phase transition of blue phase liquid crystals (BPLCs) is investigated that the electro-optical properties can be affected by the threshold temperature. And the relationship between lattice formation process of BPLCs and temperature is also demonstrated that the heterogeneous lattice generation and the homogeneous lattice growth play different roles in phase transition process with different cooling rates.