Abstract: Provided are a color display driving principle obtained while taking into account a difference in eye sensitivity to the flickering of differently colored lights, a TFT liquid crystal display module structure that is adequate for this method, and a double-panel projection type display device. The count of the G (green) color data that can be written is increased compared with the count for the other primary colors, or the display period for green can be extended. The repetitive unit is set to R, G, B and G, so that a satisfactory refresh rate can be set for the important color G. Therefore, the overall refresh frequency and the power consumed by the display device can be reduced without deterioration of the display quality, and requests for the time response speeds by the display device can be reduced.

Abstract: It is one object of the present invention to reduce the number of inputs to an LCD driver and to reduce manufacturing costs by employing the COG&WOA technique. For a liquid crystal display device, source driver ICs 20, among which video signals are transmitted and distributed via a video I/F 3, are cascade-connected, and the connection lines to the source driver ICs 20 are reduced as much as possible to employ the COG&WOA technique. That is, a liquid crystal display device comprises: a liquid crystal cell 2, which forms an image display area on a substrate, and a source driver 7, which applies a voltage to the liquid crystal cell 2 based on a video signal input via a video I/F 3. The source driver 7 includes a plurality of source driver ICs 20 that are mounted on the same substrate as the liquid crystal cell 2 and that are cascade-connected by signal lines.

Abstract: To test electrical characteristics of a Thin Film Transistor (TFT) with a source or drain terminal left open and exposed, using a non-contact current source and protecting the TFTs from adverse effects, such as contamination, destruction, and the like. A tester 100 is provided to test a TFT array substrate 14, the tester including ion flow supply devices 16 and 18 for supplying an ion flow onto the surface of a substrate 14. Thereon, an array 12 of TFTs is formed, each TFT being connected to an electrode having a source or a drain left open and exposed; a control circuit 24 for supplying an operating voltage to a gate electrode of the TFT to be tested in the array; and a measurement circuit 24 for measuring an operating current via the testing TFT source or drain that remain in a non open state.

Abstract: JP920010143US1 A liquid crystal display includes liquid crystal cells for forming an image display area on a substrate, a source driver for applying a voltage to the liquid crystal cells using a plurality of source driver ICs to which power is supplied in a single stroke of the brush fashion and an LCD controller for processing signals received from a host's side via video I/F and supplying the processed signals to the source driver Ics. The source driver delays the start timing for writing the liquid crystal cells among the plurality of source driver ICs respectively to avoid the concentration of current consumption.

Abstract: Provided is an inspection device which inspects a thin film transistor (TFT) for supplying a current to a light emitting element. The inspection device includes: a first current supply circuit which supplies a drain current between a drain and a source of the TFT; a gate voltage adjustment circuit which adjust a gate voltage to be applied to a gate of the TFT so as to allow a predetermined specified current to flow between the drain and source of the TFT; and a measurement unit which measures the gate voltage adjusted by the gate voltage adjustment circuit.

Abstract: An inspection system for inspecting characteristics of an active matrix panel before formation of OLEDs includes: a roller contact probe having a conductive material on at least a surface thereof and sequentially contacting pixel electrodes formed on the active matrix panel while rotating; probe control circuits having capability to apply a voltage necessary for measurement to TFT arrays including pixel electrodes with which the roller contact probe is in contact; and a computer measuring currents flowing through the TFT arrays to which a voltage is applied and statistically processing the measurement results.

Abstract: A thin film transistor (TFT) array comprises: a drive TFT for driving an organic light emitting diode (OLED), which is an electroluminescence (EL) device; first common wiring disposed for performing a current source or a current sink for the OLED; second common wiring disposed for performing a current source or a current sink for the OLED, the second common wiring being connected alternately with the first common wiring for each horizontal line and each vertical column of a pixel; and a switching TFT, which is a connection switch for connecting either one of the first common wiring and the second common wiring to a pixel electrode.

Abstract: An inspection method includes an array process of forming a TFT array on a substrate to fabricate an active matrix panel, an inspection process of carrying out a performance test on the fabricated active matrix panel, and a cell process of mounting an OLED on the active matrix panel after the inspection process. In the inspection process, variation in parasitic capacitance through a pixel electrode is measured when driving TFTs constituting the active matrix fabricated in the array process are turned on and when the driving TFTs are turned off, and open/short defects in the driving TFTs are thereby inspected.

Abstract: The object of the present invention is to reduce the number of inputs to LCD driver chips, and to suppress the occurrence of variances between the chips. A ten bit wide binary counter 202 is self activated in synchronization with a system clock. Each of multiple five-step shift registers 200 having ten bit widths stores gamma compensation data received from a PC. Each of multiple comparators 204 compares a binary counter value (X) with a value (Y) stored in a ten bit wide five-step shift register 200, and converts the gamma compensation data into a pulse width. The output of each comparator 204 is latched by each of multiple D-FFs 206 in synchronization with the system clock, and each of multiple time/voltage converters 208 passes the output of a D-FF 206 through an LPF and generates a reference gamma compensation voltage.

Abstract: An LCD module includes liquid crystal cells forming a image display area on a substrate, a plurality of driver LSIs mounted on the substrate for applying voltages to the liquid crystal cells, and a wiring structure formed on the substrate for supplying a voltage to the plurality of driver LSIs. The wiring structure supplies the voltage to the plurality of driver LSIs, with the wiring resistance gradually changing from a voltage supply point.

Abstract: Provided are a color display driving principle obtained while taking into account a difference in eye sensitivity to the flickering of differently colored lights, a TFT liquid crystal display module structure that is adequate for this method, and a double-panel projection type display device.

Abstract: Provided are a color display driving principle obtained while taking into account a difference in eye sensitivity to the flickering of differently colored lights, a TFT liquid crystal display module structure that is adequate for this method, and a double-panel projection type display device. The count of the G (green) color data that can be written is increased compared with the count for the other primary colors, or the display period for green can be extended. The repetitive unit is set to R, G, B and G, so that a satisfactory refresh rate can be set for the important color G. Therefore, the overall refresh frequency and the power consumed by the display device can be reduced without deterioration of the display quality, and requests for the time response speeds by the display device can be reduced.

Abstract: A display device comprises a gate metal and a data metal formed in an array region and in a periphery region outside of the array region of the display device. A planarizing layer is formed over the array region and the periphery region. Vias are patterned into the planarizing layer in the array region and the periphery region to expose portions of at least one of the gate metal and the data metal. A transparent conductor is deposited in the array region and the periphery region. A metal layer is locally deposited over the transparent conductor in selected areas of the periphery region. The metal layer and the transparent conductor are patterned to form an additional wiring level and/or to form connections between the gate metal and the data metal in the periphery region and to form transparent pixel electrodes in the array region.

Abstract: JP920010143US1A liquid crystal display includes liquid crystal cells for forming an image display area on a substrate, a source driver for applying a voltage to the liquid crystal cells using a plurality of source driver ICs to which power is supplied in a single stroke of the brush fashion and an LCD controller for processing signals received from a host's side via video I/F and supplying the processed signals to the source driver Ics. The source driver delays the start timing for writing the liquid crystal cells among the plurality of source driver ICs respectively to avoid the concentration of current consumption.

Abstract: A display device and method for fabrication are disclosed. A gate metal and a data metal are formed in an array region and in a periphery region outside of the array region of the display device. A planarizing layer is formed over the array region and the periphery region, and vias are patterned into the planarizing layer in the array region and the periphery region to expose portions of at least one of the gate metal and the data metal. A transparent conductor is deposited in the array region and the periphery region. A metal layer is locally deposited over the transparent conductor in selected areas of the periphery region. Then, using a same lithographic pattern, the metal layer and the transparent conductor are patterned to form an additional wiring level and/or to form connections between the gate metal and the data metal in the periphery region and to form transparent pixel electrodes in the array region.

Abstract: JP920010105US125 A liquid crystal display driver for applying a voltage to liquid crystal cells forming an image display area includes a pulse generation circuit for generating a plurality of reference pulses in which pulse generation densities are weighted, a pulse select/synthesis circuit for generating a pulse string by selecting and synthesizing necessary reference pulses on the basis of digital input data and the reference pulses and an integration circuit (low pass filter) for integrating the pulse string generated by the pulse select/synthesis circuit to output an analog voltage for gamma correction.

Abstract: A low cost LCD device employing a high speed field sequential drive scheme.

Abstract: Provided are a color display driving principle obtained while taking into account a difference in eye sensitivity to the flickering of differently colored lights, a TFT liquid crystal display module structure that is adequate for this method, and a double-panel projection type display device.

Abstract: An LCD module includes liquid crystal cells forming a image display area on a substrate, a plurality of driver LSIs mounted on the substrate for applying voltages to the liquid crystal cells, and a wiring structure formed on the substrate for supplying a voltage to the plurality of driver LSIs. The wiring structure supplies the voltage to the plurality of driver LSIs, with the wiring resistance gradually changing from a voltage supply point.

Abstract: It is one object of the present invention to reduce the number of inputs to an LCD driver and to reduce manufacturing costs by employing the COG&WOA technique.