Abstract:
A method of manufacturing an optical film includes steps of providing a substrate first and performing an alignment treatment on the surface of the substrate or forming an alignment layer on the substrate. A first liquid crystal layer is then coated on the aligned surface of the substrate or on the surface of the alignment layer, and thereafter, a first curing step is performed. After a second alignment layer is coated on the surface of the first liquid crystal layer, a second curing step is performed so as to form a multi-layer including the first and second liquid crystal layers.
Abstract:
A device for detecting an incident light distribution. The device has an array of light sensors, and a shadow casting element spaced above the light sensor array, with the shadow casting element between the incident light to be modelled and the sensor array. A processor interprets a cast shadow detected by the light sensor array thereby to derive information relating to the directional distribution of the incident light.
Abstract:
This invention provides a top-emission active matrix electroluminecient device including a substrate and a plurality of pixel areas formed within a display area of the substrate. Each of the pixel areas includes at least one sub-pixel area comprising at least, from top to bottom: a first conductive electrode layer, an electroluminecient layer, a second conductive electrode layer, a first reflective layer region, and a second reflective layer region. The first reflective layer region and second reflective layer region overlap each other in part. Some of the light rays emitted from the electroluminecient layer are reflected by the first reflective layer region and second reflective layer region, respectively, and are then directed upwards. The reflected light rays compensate the top-emitting light rays also emitted from the electroluminecient layer, reducing color shifts at different viewing angles due to the micro-cavity effect.
Abstract:
A liquid crystal display device includes a liquid crystal layer, a common electrode, and an electrode set. The liquid crystal layer is placed between said common electrode and the electrode set, and the electrode set is provided for switching the liquid crystal layer. The electrode set includes a first electrode for switching a first area of the. liquid crystal layer and a second electrode for switching a second area of the liquid crystal layer. Particularly, the second area includes at least a part of the area of the liquid crystal layer that the first area does not include. The first electrode has a shape which in cooperation with the second electrode allows alignment of the LC molecules in substantially two orthogonal directions. A method is provided to get rid of the circular polarizers which provide a good on-axis aperture but which show reduced off-axis performance compared to linear polarizers.
Abstract:
Image displaying systems comprising a pixel array, a memory, a parameter selector and a compensator. The memory stores compensation parameter sets of a plurality of specific pixels of the pixel array. According to driving signals of the pixel array, the parameter selector determines a target pixel that the system is going to drive, and then determines whether the target pixel is one of the specific pixels andrequires to be compensated for mura defect. When the target pixel is one of the specific pixels and requires to be compensated for mura defect, the parameter selector outputs a memory address for retrieving the corresponding compensation parameter set from the memory. Based on the retrieved compensation parameter set and an original gray level of the target pixel, the compensator generates a compensated gray level to replace the original gray level to drive the target pixel.
Abstract:
A display device including a substrate, a driving element, a reflective layer and a first auxiliary layer is provided. The substrate has a first area and a second area. The driving element is placed within the first area. The reflective layer is placed above the first area and at least a portion of the second area and coupled to the driving element. The first auxiliary layer is placed on the reflective layer above the first area. The first auxiliary layer improves the electrical characteristic of the reflective layer. A reflectance of the first auxiliary layer is not larger than a reflectance of the reflective layer.
Abstract:
An organic electroluminescent device is provided. The organic electroluminescent device includes an array substrate having a white sub-pixel region and an organic electro-luminescent multi-layer structure is disposed on the white sub-pixel region of the array substrate. The organic electro-luminescent multi-layer structure comprises a bottom electrode. The bottom electrode has a thinner first portion and a thicker second portion for providing a wavelength shift of light in different directions.
Abstract:
A digital to analog converter is provided comprising a charge sharing circuit, a discharging circuit and a voltage boosting circuit. The charge sharing circuit sequentially receives first to (N−1)th bits of serial digital signals. The charge sharing circuit shares and stores charges between a first capacitor and a second capacitor according to a charging voltage, a ground voltage, a first clock signal and serial data signals. The discharging circuit discharges the charge sharing circuit according to a reset signal. After the voltage boosting circuit receive the (N−1)th digital signal, the charge boosting circuit whether to boost a first terminal and a second terminal of the second capacitor or not based on an Nth digital signal. After the voltage boosting circuit receives the Nth serial digital signal, the charge sharing circuit outputs an analog signal from the second terminal of the second capacitor.
Abstract:
The invention provides a method for fabricating a low-temperature polysilicon (LTPS) driving circuit and thin film transistor. The method includes: providing a substrate, forming an active layer, forming a gate insulating layer, forming a dielectric layer having an extending portion and forming a gate electrode. The extending portion of the dielectric layer and the gate electrode are formed during the same step, and they can serve as a mask during a later doping process so that a lightly doped source/drain region and a source/drain region are formed during the same time without forming extra masks.
Abstract:
The present invention achieves the multi-domain configuration by providing an insulation film region at least one location in each pixel on one substrate of a pair of substrates of an active matrix multi-domain vertically aligned liquid crystal display for differentiating electrical potential to be applied to a certain zone of the liquid crystal from that to the liquid crystal at the other area when a voltage is applied to the liquid crystal, thereby causing different electrical potential gradients in at least two directions.