Abstract: A pixel circuit of an active-matrix organic light-emitting diode does not provide currents for an organic light-emitting diode during a compensation period, and provides currents, free from variation of a threshold voltage of a thin-film transistor, for the organic light-emitting diode during a data input period, so as to improve gray levels, increase contrast ratios, and decrease power consumption.

Abstract: A liquid crystal display device and an electronic device, which provide compensation for the difference of brightness caused by the LC effect to improve the image color fidelity is provided. The present invention provides a source driving method for a LCD device including providing data signals representing images to be displayed at a plurality of sub-pixels corresponding to different display wavelengths within a pixel and sequentially activating the sub-pixels within the pixel, in the order from a sub-pixel corresponding to the shortest display wavelength to a sub-pixel corresponding to longest display wavelength.

Abstract: The present invention provides an image display system that includes a charge pump circuit. The charge pump circuit further includes a first inverter, a first switch, and a capacitor. The first inverter has a first input terminal and a first output terminal. The first input terminal receives a first clock signal with a first voltage swing and the first output terminal outputs the first inverse clock signal by inversely converting the phase of the first clock signal. The first switch has a first switch input terminal, a first control terminal and a first switch output terminal. The first input terminal receives an input voltage. The first control terminal is coupled to the first output terminal and controls the first switch according to the first inverse clock voltage signal. A terminal of the capacitor receives a second clock signal with a second voltage swing and the other terminal of the first capacitor is coupled to the first switch output terminal to provide the first output voltage.

Abstract: A system for displaying images. The system comprises a thin film transistor (TFT) device comprising a substrate comprising a driving circuit region and a pixel region. First and second active layers are disposed on the substrate in the driving circuit region and in the pixel region, respectively. The first active layer has a grain size greater than that of the second active layer. Two gate structures are disposed on the first and second active layers, respectively, in which each gate structure comprises a stack of a gate dielectric layer and a gate layer. A reflector is disposed on the substrate under the first active layer and insulated from the first active layer. A method for fabricating a system for displaying images including the TFT device is also disclosed.

Abstract: An etchant for patterning composite layer containing copper is provided. The etchant includes peracetic acid being about 5% to 40% by weight and serving as a major component, a peracetic acid stabilizer being about 5% to 15% by weight, an organic acid being about 5% to 10% by weight, an inorganic acid being about 5% to 15% by weight, a salt being about 8% to 15% by weight, which are based on the total weight of the etchant.

Abstract: A display panel is used with an image display system. The display panel includes a light-transmissive substrate, a gate insulating layer, a gate conductor, a first light-shielding structure, a channel layer and a second light-shielding structure. The gate insulating layer is formed over the light-transmissive substrate. The gate conductor and the first light-shielding structure are made of the same material, formed over the gate insulating layer, and electrically isolated from each other. The first light-shielding structure has a hollow portion. The channel layer and the second light-shielding structure made of the same material and formed over the light-transmissive substrate but under the gate insulating layer. The second light-shielding structure is disposed under the hollow portion of the first light-shielding structure.

Abstract: A method and an apparatus for forming a polycrystalline layer using laser annealing for preventing damage to the peripheral region of the substrate during laser annealing. The laser annealing comprises a shadow mask structure. When crystallizing an amorphous layer by laser annealing, the shadow mask structure shields the peripheral region of the amorphous layer from laser irradiation. A method for forming a polycrystalline layer using the laser annealing apparatus is also provided in the invention.

Abstract: A shift register unit capable of generating two output pulses in turn. In the shift register unit, a first unit receives a start pulse and a clock signal to output a first output pulse during a first period. A second unit receives the first output pulse and an inverse signal of the clock signal to output a second output pulse during a second period.

Abstract: An image display system is provided. The image display system includes a level shifter including a first voltage adjusting circuit and a second voltage adjusting circuit. The first voltage adjusting circuit adjusting the voltage of an input signal, includes a small signal input terminal receiving the input signal and a differential output terminal outputting a pair of differential signals. The available voltage ranges of the differential signals are larger than that of the input signal. The second voltage adjusting circuit, coupled to the first voltage adjusting circuit, includes a first input terminal and a second input terminal respectively receiving the pair of differential signals. The second adjusting circuit adjusts the voltage of the differential signals and generates an output signal. The available voltage range of the output signal is larger than that of the differential signals.

Abstract: A liquid crystal display device has pixels, and each pixel has a lower substrate and an upper substrate with a liquid crystal material in between. The each pixel also has an electrode structure between the lower substrate and the upper substrate. The electrode structure has electrodes, and each electrode has a polygon-shaped electrode surface and a plurality of electrode edges. The electrodes are arranged such that if an electrode edge is facing an electrode edge of an adjacent electrode then the electrode edge and the electrode edge of the adjacent electrode define a distance which is substantially constant along the entire electrode edge.

Abstract: An organic light-emitting device and a method for forming the same are provided. The organic light-emitting device includes: a substrate including a pixel area and a peripheral circuit area; a passivation layer on the substrate, the passivation layer including a first part in the pixel area and a second part in the peripheral circuit area; a pixel definition layer defining a plurality of pixel openings corresponding to the pixel area of the substrate; a plurality of first electrodes in the pixel openings; an adhesion layer on the second part; an organic layer on the first electrodes; and a second electrode layer on the organic light emitting layer, wherein the second electrode extends to the peripheral circuit area to connect with the adhesion layer.

Abstract: The invention discloses a system for displaying images comprising an organic electroluminescent device. The organic electroluminescent device comprises a pixel area including a plurality of sub-pixels, a switching TFT having a first silicon layer with a first thickness and a driving TFT having a second silicon layer with a second thickness. Each sub-pixel includes a switching region with a switching TFT thereon and a driving region with a driving TFT thereon. Specifically, a difference between the first thickness and the second thickness at least exceeds 10%. Fabrication methods of the system are also provided.

Abstract: A planar display structure with LED light source includes a plane light source constituted by a plurality of LEDs and a light guide plate, wherein the light guide plate has a plurality of recesses that the above LEDs can be put into.

Abstract: An organic electroluminescent device (1) comprising an EL element (2) supported on a transparent substrate (6). A cover plate (7) of a ceramic or glass-ceramic material is provided which plate is sealed by metallic sealing means (10), to the transparent substrate, whereby a gas-tight enclosure is formed for the EL element. The cover plate supports a driver IC (15). The cover plate is provided with internal conductors (12a, 12b, 12c) which connect first contact pads (13a, 13b, 13c) connected to the EL element (2) and to second contact pads (14a, 14b, 14c) connected to the driver IC (15), at least one first contact pad and the second contact pad to which it is connected being non-aligned.

Abstract: A transflective liquid crystal display module is provided. The transflective LCD includes a backlight unit for providing a light, an active matrix substrate, an opposite substrate with an internal reflector disposed between the active matrix substrate and the backlight unit, an optical film disposed on the opposite substrate, and a liquid crystal layer filled between the active matrix substrate and the optical film. In the transflective LCD of the present invention, the light provided by the backlight unit is reflected back by the internal reflector such that the light provided by the backlight unit can be recycled. Furthermore, a flat panel display device and an electronic apparatus are also provided.

Abstract: A current sampling circuit including a current sampling transistor, a capacitor arrangement between the gate and source of the current sampling transistor and an amplifier provided in a feedback loop between the gate and source of the current sampling transistor. A switch controls the circuit to sample a gate-source voltage corresponding to a current being sampled onto the capacitor arrangement. The capacitor arrangement comprises a first capacitor circuit for sampling a gate source voltage in a first sampling phase and a second capacitor circuit, with the first and second capacitor circuits arranged for together sampling the gate source voltage in a second sampling phase. The operating point of the amplifier is shifted between the first and second phases based on the gate source voltage sampled in the first sampling phase.

Abstract: An LCD device with an LCD cell. The cell has a liquid crystal layer, a base panel adjacent to the liquid crystal layer and a top panel adjacent to the liquid crystal layer but opposing the base panel. The base panel has a first polarizer arranged to polarize incident light into a first direction. The top panel has a color filter with one or more color filter portions so as to produce light with a predetermined color, a second polarizer on a side of the color filter opposite to the liquid crystal layer and designed to polarize incident light into a second direction perpendicular to the first direction, and a third polarizer located between the color filter and the liquid crystal layer and designed to polarize incident light into the second direction.

Abstract: A method is provided of controlling an illumination source for a display device which comprises a display modulator for modulating the light provided by the illumination source. The method comprises using a light sensor arrangement to generate a first signal based on an ambient light level with first illumination source drive condition, and using the light sensor arrangement to generate a second signal based on the same ambient light level but with second illumination source drive condition different to the first drive condition. The first and second signals are processed to compensate for differences in the light sensor arrangement response characteristics when operating with the first and second illumination source drive conditions thereby to derive a compensated light sensor arrangement characteristic covering both the first and second illumination source drive conditions. Ambient light levels detected using this model of the characteristic are used to control the display device.

Abstract: A position sensing display integrates a touch sensor with an active matrix LCD panel. The panel includes both coarse and fine sensing means. The fine sensing means includes fine sense electrodes combined together in groups, the groups being interdigitated i.e. alternating across the display. In use, the fine sensing electrodes determine the position of a sensed object such as a stylus or finger accurately but non-uniquely, and the coarse sensing means determines which of the plurality of non-unique positions is correct.

Abstract: An active matrix electroluminescent display device has a current sampling resistor within each pixel in series with the display element. A feedback signal represents the voltage drop across the current sampling resistor and the pixel drive signals are modified in dependence on the feedback signal to control the current driven through the display element. In this way, threshold compensation is provided, whilst enabling a single voltage-driven drive transistor to be employed.