Abstract: Disclosed is a method of determining an X-ray image for a liquid crystal X-ray detector. The method includes a first step of measuring a reference transmittance of a pixel while varying a bias voltage in a state in which an X-ray sensing liquid crystal panel is not irradiated with an X-ray, a second step of separating electrons and holes in the X-ray sensing liquid crystal panel by applying a separation voltage and irradiating the X-ray sensing liquid crystal panel with an X-ray, a third step of measuring a detection transmittance of a pixel by applying a measurement voltage to the X-ray sensing liquid crystal panel, a fourth step of deriving a bias voltage of a reference transmittance of the pixel corresponding to the detection transmittance, and a fifth step of determining an X-ray image of the pixel by subtracting the measurement voltage from the bias voltage derived in the fourth step.

Abstract: Disclosed is a method of determining an X-ray image for a liquid crystal X-ray detector. The method includes a first step of measuring a reference transmittance of a pixel while varying a bias voltage in a state in which an X-ray sensing liquid crystal panel is not irradiated with an X-ray, a second step of separating electrons and holes in the X-ray sensing liquid crystal panel by applying a separation voltage and irradiating the X-ray sensing liquid crystal panel with an X-ray, a third step of measuring a detection transmittance of a pixel by applying a measurement voltage to the X-ray sensing liquid crystal panel, a fourth step of deriving a bias voltage of a reference transmittance of the pixel corresponding to the detection transmittance, and a fifth step of determining an X-ray image of the pixel by subtracting the measurement voltage from the bias voltage derived in the fourth step.

Abstract: Disclosed is a liquid crystal X-ray detector capable of obtaining a complete X-ray image of a subject without having to combine smaller partial X-ray images while using an imaging lens much smaller than a liquid crystal layer. The liquid crystal X-ray detector includes a photoconductor unit including a photoconductive layer, a liquid crystal unit provided on the photoconductor unit and including a liquid crystal layer, a read beam output unit outputting a read beam toward the liquid crystal layer, and an imaging lens disposed on a light path in front of the liquid crystal layer. The read beam output unit emits scattered or plane light. The imaging lens has a long axis length that is equal to or smaller than one half of the long axis length of the liquid crystal layer.

Abstract: Disclosed is a liquid crystal X-ray detector in which only one substrate is used to make a liquid crystal unit by forming one of two alignment films for holding a liquid crystal layer therebetween on a selenium layer. Further disclosed is a method of manufacturing the same. The liquid crystal X-ray detector includes a photoconductor unit and a liquid crystal unit provided on the photoconductor unit. The photoconductor unit includes a first substrate, a selenium layer formed on the first substrate, and a first alignment film formed on the selenium layer. The first alignment film is formed of parylene deposited at a temperature lower than 45° C. in a vacuum atmosphere. The liquid crystal unit includes a second substrate, a second alignment film formed on the second substrate and opposed to the first alignment film, and a liquid crystal layer provided between the first alignment film and the second alignment film.

Abstract: Disclosed is an electro-optic modulator assembly capable of determining whether each process is being carried out normally during a fabricating process of a flat panel display by performing a contactless testing across the flat panel display, an apparatus and a method for contactless test of flat panel display using the electro-optic modulator assembly, and a method for manufacturing a flat panel display using the method for contactless test of the flat panel display.

Abstract: A LCD panel having the large cell gap tolerance includes: an LC (Liquid Crystal) having properties changed by input voltage and changing a transmittance rate change of light incident from the outside; electrodes for applying voltage to the LC; base plates on which the electrodes are formed, each base plate having an LC layer located at prescribed intervals to inject the LC between the electrodes; a slit pattern or a floating electrode formed inside each electrode, changing voltage applied to the LC and compensating a cell gap change; and a micro-lens attached on one side of one of the base plates and gathering lights, which are incident from the outside, on a central symmetric line of the slit pattern or the floating electrode. The LCD panel of large cell gap tolerance and the LCD projector using it include LCD panels having large LCD cell gap tolerance.

Abstract: Disclosed is an electro-optic modulator assembly capable of determining whether each process is being carried out normally during a fabricating process of a flat panel display by performing a contactless testing across the flat panel display, an apparatus and a method for contactless test of flat panel display using the electro-optic modulator assembly, and a method for manufacturing a flat panel display using the method for contactless test of the flat panel display.

Abstract: A LCD panel having the large cell gap tolerance includes: an LC (Liquid Crystal) having properties changed by input voltage and changing a transmittance rate change of light incident from the outside; electrodes for applying voltage to the LC; base plates on which the electrodes are formed, each base plate having an LC layer located at prescribed intervals to inject the LC between the electrodes; a slit pattern or a floating electrode formed inside each electrode, changing voltage applied to the LC and compensating a cell gap change; and a micro-lens attached on one side of one of the base plates and gathering lights, which are incident from the outside, on a central symmetric line of the slit pattern or the floating electrode. The LCD panel of large cell gap tolerance and the LCD projector using it include LCD panels having large LCD cell gap tolerance.

Abstract: A LCD panel having the large cell gap tolerance includes: an LC (Liquid Crystal) having properties changed by input voltage and changing a transmittance rate change of light incident from the outside; electrodes for applying voltage to the LC; base plates on which the electrodes are formed, each base plate having an LC layer located at prescribed intervals to inject the LC between the electrodes; a split pattern or a floating electrode formed inside each electrode, changing voltage applied to the LC and compensating a cell gap change; and a micro-lens attached on one side of one of the base plates and gathering lights, which are incident from the outside, on a central symmetric line of the slit pattern or the floating electrode. The LCD panel of large cell gap tolerance and the LCD projector using it include LCD panels having large LCD cell gap tolerance.

Abstract: Disclosed is a reflective liquid crystal display.

Abstract: A LCD panel having the large cell gap tolerance includes: an LC (Liquid Crystal) having properties changed by input voltage and changing a transmittance rate change of light incident from the outside; electrodes for applying voltage to the LC; base plates on which the electrodes are formed, each base plate having an LC layer located at prescribed intervals to inject the LC between the electrodes; a slit pattern or a floating electrode formed inside each electrode, changing voltage applied to the LC and compensating a cell gap change; and a micro-lens attached on one side of one of the base plates and gathering lights, which are incident from the outside, on a central symmetric line of the slit pattern or the floating electrode. The LCD panel of large cell gap tolerance and the LCD projector using it include LCD panels having large LCD cell gap tolerance.

Abstract: Disclosed is an LCD preventing color shift and simultaneously improving the characteristics of viewing angle. The LCD comprises a substrate and a common electrode and a pixel electrode having same spiral shape formed on the substrate and being opposed each other, wherein an electric field formed between the common electrode and the pixel electrode is radial shape.

Abstract: In a liquid crystal display having a pixel electrode and a counter electrode respectively formed on a lower substrate and a upper substrate, the electric field in ellipse form, is symmetrical between the pixel electrode and the counter electrode by forming an opening part in the pixel electrode or the counter electrode. Accordingly, the viewing angle feature, when voltage is applied to the liquid crystal display is enhanced.

Abstract: A liquid crystal display preventing color shift is provided. The liquid crystal display comprises: a liquid crystal layer having a plurality of liquid crystal molecules; a lower substrate disposed at one side of the liquid crystal layer and having a sub pixel defined by crossing a gate bus line and a data bus line at an interface with said liquid crystal layer and further having a counter electrode and a pixel electrode for driving the liquid crystal molecules within each sub pixel; and an upper substrate disposed at the other side of the liquid crystal layer and having a color filter, wherein an electric field parallel to the surface of the substrate and the gate bus line and an electric field parallel to the data bus line are simultaneously formed when a voltage is applied to the counter electrode and the pixel electrode.

Abstract: A polymer dispersed liquid crystal display device is disclosed. A polymer dispersed liquid crystal display device of the present invention includes a pair of substrates inside which electrodes are formed, respectively. The substrates are disposed to be opposite to each other and to be spaced to a cell gap. A liquid crystal polymer network and liquid crystal droplets which are phase separated from each other, are interposed between the substrates. The liquid crystal polymer network is perpendicularly arranged to the planes of the substrates regardless of presence or absence of electrical field. The liquid crystal droplets includes a plurality of liquid crystal molecules and are dispersed in the liquid crystal polymer network. The liquid crystal polymer network has a birefringe index which is similar to that of the liquid crystal.

Abstract: The pixel electrode and the counter electrode are devised so that an electric field generated between the counter electrode and the pixel electrode in one unit pixel region is parallel to the gate bus line and an electric field in another unit pixel regions adjacent to the one unit pixel region in left, right, upper and lower directions is vertical to the gate bus line. Therefore, the color shift of the liquid crystal display can be prevented.

Abstract: Disclosed is a liquid crystal display device comprising gate line; a data line intersecting with the gate line over the gate line; a first electrode of transparent metal material comprising: a first portion elongated over the data line along the first direction and perpendicularly intersecting with the data line; a second portion comprising a plurality of branches each elongated along the second direction starting from the first portion of the first electrode toward the gate line; and a third portion separated by a predetermined distance along the second direction with the gate line, and elongated along the first direction starting from the longest branch to a space formed between the shortest branch and its closest branch; a second electrode of transparent metal material, formed on the same plane as the first electrode, the second electrode having a first portion corresponding to the second portion of the first electrode and a second portion corresponding to the third or first portion of the first electrode.