Session Index

We have investigated the plasmonic effects of gold nanoparticles (Au NPs) on performance of perovksite light-emitting diodes (PeLEDs).We blended Au NPs into hole transport layer to trigger localized surface plasmon resonance (LSPR), which enhanced the performance of the PeLEDs. The current efficiency improved from 3.0 cd/A to 4.5 cd/A

 

Organic light-emitting diodes with a recessed indium tin oxide anode on PET showed much higher light extraction efficiency than those on glass. The current efficiency enhancement reaches 92% for PET and only 20% for glass. The discrepancies in refractive index and haze plays important roles for such a reservation.

 

The energy quenching access through triplet annihilation was demonstrated by using triplet-triplet fusion fluorescent emitters to split the triplet energy from the phosphorescent emitter. The splitted energy becomes singlet excitons then goes back to the phosphorescent emitter. This energy circle leads energy loss and shorten the operational lifetime of OLED.

 

We have investigated the performance of an exciplex based fluorescent organic light-emitting diode (OLED). The exciplex co-host transfers both singlet and triplet energy to the fluorescent dopant efficiently. The Exciplex OLED exhibits low operational voltage, and low efficiency roll-off.

 

We tried to use a 532-nm pico-laser to directly engrave the glass substrate with microstructures; therefore implemented the experiments for investigating the effects of the process parameters on the microstructure profile and optical behavior; then demonstrated a 6-inch LGP sample with average luminance 1030 nit and uniformity of 0.8.

 

In our research, we demonstrated a thermally stable material as the electron blocking layer in a blue phosphorescent organic light-emitting diode.

 

Combing the properties of PVK and twisted nematic liquid crystal (TNLC) can be applied as an electro-opto controllable LC aperture. This study proposes that the tandem 90˚-TNLC can improve the performances of the LC aperture.

 

Silica-dispersed liquid crystals (SDLCs) has been demonstrated with the bistable effect. Although the driving frequency-dependent memory effect of SDLCs has been reported previously, the mechanism is not clear. Our results show that dielectrophoresis force can break up the aggregates of silica nanoparticles and influences the memory property.

 

This study is about the broadening the reflection bandwidth of cholesteric liquid crystals using the photo-polymerization of chiral polymer. With the illumination of UV light, the chirality of the LC mixture can be reduced due to the reduction of the amount of un-polymerized chiral polymer.

 

The effects of the interdigital-electrode pattern (IEP) on the electro-optical properties of vertically-aligned in-plane switching liquid crystal devices are simulated. Two kinds of IEPs (width/gap) are selected: 3/9 and 4/8 (μm). The device with the 3/9 IEP shows the better electro-optical properties than that with the 4/8 IEP.

 

The effects of indium-tin-oxide (ITO) electrode on the vertical-alignment in-plane switching (VA-IPS) liquid crystal (LC) devices are simulated and demonstrated. Two kinds of VA-IPS cells with and without ITO on the top substrate are proposed. The cell with the ITO thin film shows the better electro-optic properties.

 

We replace a blue phase liquid crystal (BPLC) cell by stacking nematic liquid crystal (NLC) cells to conform the electro-optical characteristics of the BPLC. We calculate the total phase difference of the BPLC cell, and find that the simulation results fit the experimental results very well.

 

Three visual experiments were conducted to compare the perceptual color differences of 3D objects. The results show that human vision would discount lightness differences in seeing 3D objects. To simulate the real-world visual differences, using virtual objects with HDR display is better than using LDR display.

 

In this work, the less metal contamination Ni-induced lateral crystallization (LC-NILC) poly-Si TFTs were successfully fabricated. The amounts of Ni diffused into the poly-Si film can be successfully controlled with pre-heating by hot plate before removal of Ni layer and crystallization.

 

The amorphous titanium doped indium oxide (InTiO) thin film transistors (TFTs) exhibits high mobility with Aluminum S/D electrodes. The contact resistance of Aluminum is lower than Indium Tin Oxide (ITO) result in the a-ITiO TFTs demonstrated high mobility to 23.89 cm^2/V s.

 

We report the fabrication of color conversion layer and considered particle size of this polymer film with C545T. Finally, we show the size on the film is about 20 to 40 nm by SEM. The layer produced by this method is not limited by reducing the size of LED chips.

 

This study examined the phase behaviors and dielectric properties of binary liquid crystal mixtures. Each of the binary mixtures contains a TFT-grade liquid crystal with positive dielectric anisotropy and a negative liquid crystal. Correlations were sought based on the relative content of MLC-6608 in a binary mixture.

 

The proposed evolutional gate driver utilizes “noise-free node sharing” for area reduction,noise-free structure of the proposed design is shared with four output stages and combines them to form a new single stage with four outputs. In non-working state, the pre-charging node is coupled periodically by switching clock via parasitic capacitance.

 

This study investigates the photoelectric effect of vertically-aligned ferroelectric liquid crystal (FLC) cells. We filled FLCs into cells of a thickness larger than the material pitch. Different electrode separations and widths were used to prepare LC cells. By measuring their T-V curves we calculate the birefringences and the kerr constants.