Abstract: A pixel electrode is formed on a TFT substrate, and a gate insulating film, an inorganic passivation film, a common electrode, and an alignment film are formed in this order thereover. A columnar spacer is formed to the counter substrate and is adapted to define a gap between the TFT substrate and the counter substrate. A through hole is formed in the gate insulating film of the TFT substrate, and the columnar spacer is disposed so as to cover a concave portion formed by the through hole. Since the area of contact between the columnar spacer and the TFT substrate is decreased, it is possible to suppress scraping of the alignment film and thus to prevent occurrence of bright spots.

Abstract: In a method of manufacturing a liquid crystal display device in which a plurality of pixels are arranged in a matrix, each of the pixels has an insulator wall structure at a boundary of the pixels, and a wall electrode is provided at least at a side of the wall structure, the wall structure being formed by: using a chemically amplified resist as a material of the wall structure, a step of applying the chemically amplified resist; a step of exposing and developing the chemically amplified resist; a step of irradiating light on an entire surface to perform post exposure; a step of pre-calcinating the chemically amplified resist at a temperature lower than a main calcination temperature; and a step of performing main calcination at a temperature higher than a pre-calcination temperature.

Abstract: In a liquid crystal display (LCD) device having a touch panel function, power consumption is reduced in the standby state. The display section is divided into blocks each of which is formed of a plurality of display lines. The counter electrode is disposed for each block. A driving circuit selectively supplies, to the counter electrode of each block, the voltage used for the liquid crystal display and the voltage used for the touch panel scanning. The driving circuit has a source amplifier that supplies the video voltages to the video lines. The driving circuit reduces the current in the source amplifier, such that the current is lower than current at the time of a normal operation, to lower the power consumption, and stops the operation of the source amplifier and supplies the GND voltage to the video lines to further lower the power consumption.

Abstract: Provided is a method of manufacturing a display device that includes a structure formed so as to protrude at least in a normal direction of a first substrate, and an electrode formed in a side wall surface of the structure, the method including: forming a transparent conductive film for the electrode; forming a low-affinity material having a low affinity for a resist film on an upper surface of the transparent conductive film formed in a head surface of the structure; forming a resist film by applying a liquid resist material to an upper layer of the transparent conductive film and then fixing the resist material; forming an opening that exposes the transparent conductive film in the resist film by removing the low-affinity material; etching the transparent conductive film which is a lower layer using the resist film as a protective film; and removing the resist film.

Abstract: An upper frame covers a periphery of a liquid crystal display panel, and a cover plate is bonded onto the upper frame and an upper polarizing plate of the liquid crystal display panel. A step is formed on the cover plate in a portion where the upper frame is bonded to the cover plate. This can reduce a thickness of resin between the upper polarizing plate and the cover plate, thereby reducing an extrusion of the resin into between the cover plate and the upper frame. Thus, a chamfer on a lower side of the cover plate can be reduced in size, and stray light from the lower side of the cover plate can be prevented. This can prevent a white line around a screen.

Abstract: In order to improve the transmissivity of each pixel and the brightness of a high-definition screen, a TFT and a projection are disposed in each pixel, a source electrode of the TFT extends so as to cover the projection, an inorganic passivation film is formed over the TFT and the projection, an organic passivation film is formed on the inorganic passivation film on the TFT, an opposed electrode is formed on the organic passivation film, an upper insulation film is formed over the opposed electrode, a pixel electrode is formed on the upper insulation film, and the pixel electrode is connected to the source electrode through a connection hole formed in the inorganic passivation film and the upper insulation film on the projection. Accordingly, the diameter of a through-hole can be made smaller.

Abstract: The presence or absence of touch is detected according to a difference of a capacitance caused by the presence or absence of a material that blocks the electric field formed between the detection electrode and the common electrode. The common electrode includes a plurality of divided electrode portions that is extended in a lateral direction and aligned with each other in a longitudinal direction. Each of the plurality of common lines is electrically connected to at least one of the divided electrode portions. The plurality of common lines is arranged in an area next to the common electrode in the lateral direction of the common electrode, arranged next to each other in a width direction orthogonal to a length thereof, is different in width from each other, and the width of the common lines is wider as the length is longer.

Abstract: A thin film transistor includes, an insulating substrate, a gate electrode provided on an upper surface of the insulating substrate, a gate insulating film formed so as to cover the gate electrode, an oxide semiconductor layer provided on the gate insulating film, a channel protective layer provided at least on an upper surface of the oxide semiconductor layer, and a source electrode and a drain electrode provided so as to come into contact with the oxide semiconductor layer, wherein the channel protective layer is formed such that the film density of a portion provided so as to come into contact with the oxide semiconductor layer is higher than the film density of a portion distant from the oxide semiconductor layer.

Abstract: A display device includes a display panel and a touch panel built in the display panel. The touch panel includes a sensitivity correcting unit configured to correct the sensitivity of the touch panel. The sensitivity correcting unit includes a difference acquiring unit configured to acquire a signal difference (S1?S2) between a detection signal S1 acquired by detection electrodes when a driving signal V1 is input to scanning electrodes from a driving-signal supplying unit and a detection signal S2 (S1>S2) acquired by the detection electrodes when a driving signal V2 (V1>V2) different from the driving signal V1 is input to the scanning electrodes from the driving-signal supplying unit and a parameter changing unit configured to change parameters of at least one of the driving-signal supplying unit and a detecting unit when the signal difference (S1?S2) is equal to or smaller than a predetermined threshold.

Abstract: Provided is a display device that includes a display panel; and a touch panel integrated in the display panel, wherein the touch panel has a plurality of scanning electrodes, a plurality of detection electrodes that intersects with the plurality of scanning electrodes, drive signal supply unit for inputting a drive signal to each of the scanning electrodes, detection unit for acquiring a detection signal from each of the detection electrodes, touch position detection unit for detecting a touch position of an detection object based on the detection signal when the drive signal is sequentially input to each of the scanning electrodes from the drive signal supply unit, and approach detection unit for detecting that the detection object approaches the touch panel based on the detection signal when a scanning voltage is collectively input to all of the scanning electrodes from the drive signal supply unit.

Abstract: A display device includes pixel electrodes formed in an image display area of a substrate, a common electrode formed in the image display area, inside signal lines formed inside the image display area, and electrically connected to the pixel electrodes, outside signal lines formed outside the image display area, and electrically connected to the inside signal lines, and a common line formed inside and outside the image display area, and electrically connected to the common electrode. An image is displayed under a control of a light using an electric field developed between the pixel electrodes and the common electrode. A coupling capacitance is formed between the inside signal lines and the common electrode. The outside signal lines each include a first portion, and a second portion higher in electric resistance than the first portion and the inside signal lines.

Abstract: A display device includes: a first substrate which has an image display region; colored layers of plural colors which are arranged in rows on the first substrate and constitute a color filter in the image display region; and a black matrix which is provided for preventing leakage of light as well as color mixing between the colored layers arranged adjacent to each other. The black matrix includes a frame-shaped portion which surrounds the image display region. The frame-shaped portion is formed such that the frame-shaped portion has a notch on an outer side thereof and covers a periphery of the first substrate except for the notch where the frame-shaped portion does not cover the periphery of the first substrate. The colored layer of at least one color is arranged in the notch.

Abstract: A liquid crystal display device includes a plurality of video signal lines that extends in columns in a display area, a plurality of inversion control signal line each supplied with an inversion control signal for controlling inversion, a first selector that selects one of a pair of amplifiers different in the polarity from each other to input signals corresponding to a pair of adjacent video signal lines on the basis of the inversion control signal, and a second selector that selects one of a pair of the corresponding adjacent video signal lines to input signals output from the pair of amplifiers on the basis of the inversion control signal, in which at least one of the signals to be supplied to the plurality of inversion control signal lines is a signal different from other signals.

Abstract: A main voltage step-up circuit includes a coil which one end thereof is connected to a power supply; a main switching element which is connected between the other end of the coil and a ground potential, and which is controlled by the main control circuit; a diode which is connected to the other end of the coil; a smoothing capacitor which is connected to the diode and is a ceramic capacitor; and an auxiliary voltage step-up circuit which is connected to the other end of the coil. The auxiliary voltage step-up circuit is ON when the main step-up voltage circuit is OFF, and compensates a potential change in the smoothing capacitor. The auxiliary voltage step-up circuit includes an auxiliary switching element which is connected between the other end of the coil and a ground potential; and an auxiliary control circuit which controls the auxiliary switching element.

Abstract: A liquid crystal display device includes a terminal in which a first insulating film and a second insulating film are formed on a terminal metal, a contact hole is formed on the first insulating film and the second insulating film, and a first ITO is formed on the contact hole and the second insulating film. The terminal is connected to a different circuit through an ACF including conductive particles. The contact hole includes a region in which a second ITO is stacked on the first insulating film and the first ITO is stacked on the second ITO in the contact hole. A width s of a portion where the terminal metal contacts the first ITO in the contact hole is s<d, where the diameter of the conductive particle is d.

Abstract: A display device which can suppress waveform distortion and lowered transmission coefficient of pixels, and suppress display irregularity is provided. In a display device having pixels arranged in a delta arrangement, a pixel includes a pixel portion which comprises a TFT including a source electrode, a drain electrode and a gate electrode, a common electrode and a pixel electrode, an organic passivation film has asymmetrical opening portions above a contact portion of the source electrode, and the orientations of the asymmetrical opening portions in the organic passivation films of pixels adjacent to each other are the same.

Abstract: A conductive elastic sheet includes: an outer portion sandwiched between a resin frame portion and a metal frame portion and brought into contact with the metal frame portion; an inner portion laminated to an image display screen; and a connecting portion connecting the outer and inner portions. An upper surface of the resin frame portion is arranged at a higher position than the image display screen. The outer portion of the conductive elastic sheet is arranged at a higher position than the inner portion. The inner portion of the conductive elastic sheet is laminated to the image display screen in a flat shape. The conductive elastic sheet has a slit formed between the outer and inner portions and adjacent to the connecting portion. The connecting portion is bent in a height increasing direction from the same height position as the inner portion.

Abstract: A flexible printed circuit board has a length extending in an arrangement direction of light emitting parts and a width extending in a direction orthogonal to the length. Each light emitting part includes electrodes on both end portions thereof respectively along the arrangement direction of the light emitting parts. The flexible printed circuit board includes a wiring pattern. The wiring pattern includes bonding portions where the light emitting part is bonded to the electrodes, and a wiring portion which is arranged between the light emitting parts arranged adjacent to each other. A fixing region portion of the wiring pattern which is positioned in a region where the bonding portion of the flexible printed circuit board is formed and a region displaced from the bonding portion in the width direction is larger than the wiring portion in the width direction.

Abstract: There is provided a touch panel including: a substrate; plural X electrodes; and plural Y electrodes disposed so as to intersect with the plural X electrodes, wherein: the plural X electrodes and the plural Y electrodes have electrode parts and intersection parts; and a protective film is further provided on the plural X electrodes and the plural Y electrodes; and wherein the pencil hardness of the surface on the observer side of the protective film is 3 or higher to 7 or lower, more preferably, 4 or higher to 6 or lower.

Abstract: A liquid crystal display device including a first substrate, a first alignment film formed over the first substrate, a second substrate, a second alignment film formed over the second substrate, a liquid crystal layer sandwiched between the first alignment film and the second alignment film, and a projecting portion formed over the second substrate. The first and second alignment films are both made of a photo-decomposition-type material. A film thickness “d2” of the second alignment film over the projecting portion and a film thickness “d1” of a portion of the first alignment film facing the projecting portion satisfy a formula (1) and a formula (2): 0 nm<d2<30 nm??(1) d2<d1??(2).