Abstract: Transflective twisted nematic (TN) liquid crystal displays(LCDs) having enhanced transmission efficiencies. Due to the use of circularly polarized light, the novel TN transflective LCD uses a new operation mode between the conventional First and Second Minimums, which alters the retardation value of the reflection and the transmission portions, where the retardation values each include a cell gap spacing. This results in the cell gap spacing in the transmission portion of the transflective LCD to be approximately triple the cell gap spacing in the reflection portion of the transflective LCD whereby the transmission efficiency increases to approximately 90 percent.

Abstract: A transflective liquid crystal display comprising an active device array substrate, a facing substrate, a liquid crystal layer and a reflector. The liquid crystal molecules in the transparent area are driven by a potential between the transparent pixel electrode and the common electrode. The liquid crystal molecules in the reflective area are driven by a potential between the transparent pixel electrode and the active device array substrate or the auxiliary electrode on the facing substrate. Under the condition of a single cell gap, the electric field applied to the transparent area and the reflective area can control the change in effective phase so as to optimize the performance.

Abstract: A testing circuit and a testing method for a flat panel display. The testing circuit is provided to each input terminal of data lines of a data driving circuit, which is integrated into the flat panel display. The testing circuit is for testing performance of a pixel as well as performance of the data driving circuit in the flat panel display.

Abstract: A liquid crystal display (LCD) and fabricating method thereof. The fabricating method includes providing a double-layered substrate structure having a first seal pattern, inserted along the periphery thereof, wherein the first seal pattern has a notch for liquid crystal injection, facing an injecting direction of the liquid crystals, forming a second seal pattern near the notch, parallel to the injecting direction, injecting the liquid crystals via the notch along the injecting direction, and sealing the notch with a third seal pattern. According to the invention, the permeating rate of the third seal pattern is accelerated, enhancing the sealing of the liquid crystal display, and increasing productivity. Further, the second seal pattern enhances the adhesion between the substrate and the third seal pattern, protecting the cured third seal pattern from peeling and bubble formation.

Abstract: A liquid crystal display (LCD) and fabricating method thereof. The LCD includes a first substrate, provided with a plurality of parallel gate lines and a plurality of parallel signal lines, wherein the gate lines and signal lines are perpendicular, and a pixel area is defined by two adjacent gate lines and two adjacent signal lines. A source electrode, electrically connected to one of the adjacent signal lines, and a drain electrode are formed on the pixel area. A first pixel electrode is formed, electrically connected to the drain electrode, on the pixel area. A second substrate is provided a predetermined distance above the first substrate, having a plurality of color-filtering areas, directly above the respective pixel area. A second pixel electrode layer is formed on the second substrate, wherein the part thereof directly above the signal lines is relatively thin.

Abstract: A liquid crystal display (LCD) and fabricating method thereof. The LCD includes a first substrate, provided with a plurality of parallel gate lines and a plurality of parallel signal lines, wherein the gate lines and signal lines are perpendicular, and a pixel area is defined by two adjacent gate lines and two adjacent signal lines. A source electrode, electrically connected to one of the adjacent signal lines, and a drain electrode are formed on the pixel area. A first pixel electrode is formed, electrically connected to the drain electrode, on the pixel area. A second substrate is provided a predetermined distance above the first substrate, having a plurality of color-filtering areas, directly above the respective pixel area. A second pixel electrode layer is formed on the second substrate, wherein the part thereof directly above the signal lines is relatively thin.

Abstract: The data-line driver circuit receives data currents from an external signal source and drives the pixel group of electro-luminescence display device. The data-line driver circuit has a first circuit group, a second circuit group and a shift register. The shift register controls the first circuit group to receive the data currents and controls the second circuit group to duplicate the data currents and then send them to the pixel group.

Abstract: A dual-display module has a first display, a second display opposing the first display, and a backlight module disposed between the first display and the second display. The backlight module has at least one tunable mirror sheet, whereby one side display can be on a mirror-like state at the same time when the other side display is in an active operation state.

Abstract: A driving circuit of a touch panel is formed by the photolithographic process on the liquid crystal display (LCD) panel to reduce the area of the driving circuit. The method includes providing an LCD panel having a common substrate; and forming a touch panel on the common substrate. First, a first conducting layer is formed on the common substrate, and then a second patterned conducting layer is formed on the first conducting layer and on a peripheral region of the LCD panel by a photolithographic process. The common substrate of the LCD panel is used as an upper substrate of the LCD panel and as a lower substrate for the touch panel.

Abstract: A low-temperature polysilicon thin film transistor having a buried LDD structure is provided. Two heavily doped regions are formed in a semiconductor layer and distributed just below a surface of the semiconductor layer. Two LDD regions are both sandwiched between the two heavily doped regions in a direction substantially parallel to the surface of semiconductor layer, and separated from the surface of the semiconductor layer by a portion of the semiconductor layer. The process for producing such a thin film transistor is also provided. A first, a second and a third doping materials are injected into a semiconductor layer in different directions to form heavily doped regions and LDD regions.

Abstract: The present invention provides a light emitting diode array illuminant and a backlight module by using the same, which comprises at least a carrier and a plurality of light emitting diodes. The carrier comprises a front surface and a back surface, and a plurality set of contacts are disposed on the front surface and back surface of the carrier. The light emitting diodes are disposed on the carrier, and are electrically connected to the contacts of each set, respectively. The illuminant provided by the light emitting diodes emits a light from a side of the carrier. The present invention further applies the light emitting diode array illuminant to a backlight module, so that it can be activated under low temperature and also protects the backlight module from over heating after it is activated.

Abstract: A voltage controlled oscillator comprises two XOR logic units and two inverters. A first inverter inverts a first XOR result into a first output signal; a second inverter inverts a second XOR result into a second output signal; a first XOR logic unit performs an XOR logic operation based on an input signal and the second output signal and thus generating the first XOR result; and a second XOR logic unit performs an XOR logic operation based on the first output signal and a reference voltage and thus generates the second XOR result.

Abstract: This invention relates to a transflective LCD device using different common voltages in the transmissive and reflective regions to present the same gray scale performance on the transmissive and reflective regions. The liquid crystal display device includes a first substrate including a plurality of transmissive regions and a plurality of reflective regions; a transmissive electrode formed on said transmission electrode region; a reflective electrode formed on said reflective regions and connected electrically with said transmissive electrode; a second substrate including a plurality of first common electrodes and a plurality of second common electrodes, wherein said first common electrodes are formed over said transmissive regions, said second common electrodes are formed over said reflective regions, and said first common electrodes are not connected electrically with said second common electrodes; and a liquid crystal layer interposed between said first substrate and said second substrate.

Abstract: The present invention provides a color liquid crystal display device in which a color filter layer is formed on an array substrate. The array substrate includes a scan line and a data line forming a pixel, on which a thin film transistor is formed, and a pixel electrode is connected to the thin film transistor. A black matrix layer is formed on the array substrate. A black matrix frame is formed around the periphery of the black matrix layer. A color filter layer is formed on the array substrate and the black matrix layer, and extends to cover the black matrix frame.

Abstract: A storage capacitor structure of a planar display is disclosed. The storage capacitor includes a substrate, a bottom electrode, an insulator, and a top electrode. The bottom electrode or top electrode has an uneven surface toward the insulator interposed between the two electrodes in order to increase the capacitance of the storage capacitor structure. A method for fabricating such storage capacitor structure is also disclosed. It includes steps of providing a substrate; and forming a bottom electrode, an insulator, and a top electrode in sequence. The bottom electrode or the top electrode has the uneven surface by an etching step.

Abstract: A method for forming a silicon oxide layer in the production of the polysilicon film transistor is disclosed. A plasma surface treatment is performed over a substrate after an amorphous silicon layer has been formed on the substrate by PECVD to transform a portion of the amorphous silicon layer into a superficial oxide layer.

Abstract: The present invention provides a method of forming a liquid crystal display (LCD). Active layers of N-type and P-type low temperature polysilicon thin film transistors and a bottom electrode of a storage capacitor are formed first. Then a N-type source/drain is formed and the bottom electrode is doped with dopants. A gate insulator, a gate electrode, a capacitor dielectric, and a top electrode are thereafter formed. After that, a P-type source/drain is formed. Finally, a source interconnect, a drain interconnect, and a pixel electrode of the liquid crystal display are formed.

Abstract: A voltage level shifter includes a front stage circuit periodically generating a first control signal and a second control signal in response to a first input clock signal and a second input clock signal complementary to the first input clock signal; a switch circuit including two PMOS transistors connected between a maximum voltage and a minimum voltage in series, wherein a third control signal is outputted from a conjunction of the two PMOS transistors, and the first and second control signals are coupled to the gate electrodes of the two PMOS transistors, respectively; and a driving circuit receiving the third control signal and outputting an output clock signal having a peak-to-peak value larger than a peak-to-peak value of the input clock signal. The voltage level shifter is implemented by essentially PMOS transistors.

Abstract: A quarter-wave film having a wide bandwidth is invented. A preferred device configuration includes a chromatic half-wave film adjacent to a twisted nematic liquid crystal (TN-LC) film. When a linear polarizer is attached to the side of chromatic half-wave film and the angles of all the optical components are properly set, the combination of chromatic half-wave film and TN-LC film behaves as a broadband quarter-wave film. Based on this idea, a broadband circular polarizer is invented if the linear polarizer, the chromatic half-wave film and the TN-LC film are combined together. In addition, this idea can also be applied to reflective liquid crystal display devices, which include a linear polarizer, a chromatic half-wave film, a TN-LC cell and a reflector.

Abstract: A thin film deposition method using plasma enhanced chemical vapor deposition is described. In a plasma enhanced chemical vapor deposition chamber, plasma is used to enhance the chemical reaction to form a thin film on a substrate. The substrate is then removed, followed by passing a cleaning gas into the chamber to remove residues in the chamber. Before loading another batch of substrate in the chamber, a pre-deposition process is performed to isolate contaminants generated from the cleaning process. A discharge plasma treatment is then conducted to lower the amount of accumulated electrical charges.