Sharp Kabushiki Kaisha Corporation

Sharp Kabushike Kaisha

Takehisa Sakurai

Shuichi Kozaki

Shoichi Ishihara

Mitsuhiro Murata

Tadashi Ohtake

Mikio Katayama

Masako Nakamura

Katsuhiro Kawai

Atsushi Ban

Yukinobu Nakata

Yoshinori Shimada

Yosuke Iwata

Masaru Kajitani

Hitoshi Ujimasa

Toshihiro Matsumoto

Masaya Okamoto

Kazuhiko Tsuda

Mitsuaki Hirata

Shoji Okazaki

Yoshiharu Kataoka

Yuzuru Kanemori

Hiroshi Sugimoto

Tetsunori Tanaka

Naofumi Kondo

Tetsuo Fujita

Tokuo Yoshida

Yukiya Nishioka

Hidenori Negoto

Manabu Takahama

Hideji Marumoto

Provided is an organic EL display device including a resin substrate layer, a TFT layer provided on the resin substrate layer, and a light-emitting element that is provided on the TFT layer and constitutes a display region. The resin substrate layer includes a first resin layer, an inorganic layer, and a second resin layer, which are provided in that order from a side opposite to the TFT layer. The interior of the first resin layer contains a plurality of air bubbles.

Display device and method for manufacturing same where a resin layer containing air bubbles

An array board includes a display area having a non-rectangular shape, TFTs disposed in the display area, a plurality of gate lines disposed in the display area and connected to the TFTs, a non-display area surrounding the display area, unit circuits disposed in the non-display area and connected to the gate lines, and a block connection line. The unit circuits are linearly arranged in the non-display area to form circuit blocks. The circuit blocks in the non-display area form a gate circuit portion in which at least two of the circuit blocks are away from each other in an oblique direction with respect to an arrangement direction of the unit circuits. The block connection line extends across the circuit blocks in the non-display area. The block connection line is connected to the circuit blocks.

Display board and display device including a plurality of circuit blocks with different numbers of unit circuits

Provided is a display device capable of satisfactorily reducing power consumption while suppressing display degradation due to flicker. When an input unit () of a host accepts a predetermined input operation performed by a user () during pause driving of a liquid crystal display device (), a check and adjustment process is started. In this check and adjustment process, a counter voltage that is applied to a common electrode of a display unit () changes from an optimum value (a value corresponding to a positive-negative balanced state) in accordance with the input operation performed by the user (). When the user () performs an 'OK' operation upon starting to perceive flicker during this course of change in the counter voltage, a flicker check unit () calculates flicker sensitivity from an amount of change &#x394;Vcom in counter voltage at that time, and a driving adjustment unit () adjusts a refresh rate and display brightness in the display unit () based on this flicker sensitivity via a driving control unit () and the like.

Method for driving a display device including flicker check circuitry

The present invention provides a liquid crystal display device with excellent display quality in which the color shift is reduced without increasing power consumption. The present invention relates to a liquid crystal display device including: first pixels and second pixels arranged on a display surface, each pixel including a red sub-pixel, a green sub-pixel, and a blue sub-pixel; a color filter substrate; a liquid crystal layer; and an array substrate, the color filter substrate, the liquid crystal layer, and the array substrate being arranged in the stated order, the color filter substrate including: red color filters, green color filters, and blue color filters, the array substrate including: red sub-pixel electrodes; green sub-pixel electrodes; blue sub-pixel electrodes; first driving signal lines connected to the red sub-pixel electrodes and the green sub-pixel electrodes constituting the first pixels and to the blue sub-pixel electrodes constituting the second pixels; and second driving signal lines connected to the blue sub-pixel electrodes constituting the first pixels and to the red sub-pixel electrodes and the green sub-pixel electrodes constituting the second pixels, wherein AC voltage driving is performed such that, in each first pixel and in each second pixel, a voltage of the same polarity is applied to the red sub-pixel electrode and the green sub-pixel electrode and a voltage of a polarity opposite to that of the green sub-pixel electrode is applied to the blue sub-pixel electrode.

Liquid crystal display device with color pixels and subpixels

A liquid crystal panel () is a vertical alignment type liquid crystal panel using a horizontal electric field driving system which performs display by driving a liquid crystal layer () interposed between substrates () in a horizontal electric field, each pixel includes three sub-pixels (R,G, andB), which are of red, green, and blue, comb-shaped electrodes () include a function as a diffraction grating with the comb-shaped electrodes () and spaces between the comb-shaped electrodes (), and pitch distances (D) between electrodes are set such that an optical diffraction efficiency for red wavelength and an optical diffraction efficiency for green wavelength are greater than an optical diffraction efficiency for blue wavelength. Thus, it is possible to provide a liquid crystal panel and a liquid crystal display apparatus having a wide viewing angle with less color change with a simple configuration.

Liquid crystal panel and liquid crystal display apparatus

Picture element electrodes () and common electrodes () are provided in one of two substrates facing each other. Each picture element () has a plurality of sub picture elements (). In a range in which a signal voltage of an image signal is low, a display is carried out only in a first sub picture element () having narrower electrode spacing, whereas in a range in which the signal voltage of the image signal is high, a display is carried out in both of the first sub picture element () and a second sub picture element () having wider electrode spacing.

Liquid crystal display element, liquid crystal display device, and display method employed in liquid crystal display element

An vertical alignment type liquid crystal display element () which controls an orientation of liquid crystal molecules () in a liquid crystal layer () by use of a transverse electric field so as to carry out display. A CF-side first insulating layer () and a CF-side second insulting layer () which have respective different dielectric constants are provided, within a pixel in a planar view, on or above a CF substrate () so that a first electric field region () and a second electric field region () which differ in shapes of equipotential lines are formed in the pixel due to generation of a transverse electric field.

Liquid crystal display element comprising at least two insulating layers having different dielectric constants and at least two pixel regions which differ in shapes of equipotential lines

A vertical alignment liquid crystal panel based on a transverse electric field drive system is provided which shows few changes in color when looked squarely at. A liquid crystal panel () is a vertical alignment liquid crystal panel based on a transverse electric field drive system, which carries out a display by driving, with a transverse electric field, a liquid crystal layer () sandwiched between substrates (), and the substrate () is provided with an insulating layer () having at least two regions that are different in relative permittivity from each other in a pixel () composed of a red subpixel (R), a green subpixel (G), and a blue subpixel (B). Those regions of the insulating layer () which correspond to the blue, green, and red subpixel (B,G,R) in the liquid crystal panel () have relative permittivities of 3, 3 to 7, and 4 to 7, respectively.

Liquid-crystal panel and liquid-crystal display device

The present invention provides a liquid crystal display device that can suppress a display defect due to collapse of liquid crystal alignment. The present invention provides a liquid crystal display device comprising a liquid crystal display element including a pair of substrates and a liquid crystal layer hermetically interposed between the pair of substrates, wherein the liquid crystal layer includes a p-type liquid crystal material that is homeotropically aligned with respect to surfaces of the pair of substrates when no voltage is applied; one of the pair of substrates comprises a comb-shaped electrode and a first alignment layer configured to control alignment of the p-type liquid crystal material; the other of the pair of substrates comprises a second alignment layer configured to control alignment of the p-type liquid crystal material; and the first alignment layer has an anchoring energy of not greater than 1.5&#xd7;10J/m.

Liquid crystal display device comprising a P-type liquid crystal material and a first alignment layer having an anchoring energy

The present invention provides a liquid crystal display device capable of preventing occurrence of flickers. The liquid crystal display device including a first substrate and a second substrate disposed to face each other, and a liquid crystal layer sandwiched between the first substrate and the second substrate, wherein the liquid crystal layer includes a liquid crystal molecule having positive dielectric anisotropy; the liquid crystal molecule is perpendicularly aligned relative to a surface of the first substrate when no voltage is applied; the first substrate includes a pixel electrode to which an image signal is supplied, a common electrode to which a common signal is supplied, an insulating film, and a lower layer wiring connected to the pixel electrode; the lower layer wiring, the insulating film, and the common electrode are stacked in the stated order towards the liquid crystal layer side; the image signal is supplied to the pixel electrode through the lower wiring; the pixel electrode has a pixel comb-tooth portion; the common electrode has a common comb-tooth portion; the pixel comb-tooth portion and the common comb-tooth portion are planarly disposed to face each other in a pixel; the liquid crystal device has at least two regions having spacings of different lengths between the pixel electrode and the common electrode from each other in the pixel; the lower layer wiring overlaps the common comb-tooth portion and extends along the common comb-tooth portion; and a width of a part of the lower layer wiring which is overlapped with the common comb-tooth portion is substantially the same as or smaller than a width of a part of the common comb-tooth portion which is overlapped with the lower layer wiring.

Liquid crystal display device

A liquid crystal display element, a liquid crystal display device, and a method for displaying with a liquid crystal display element, wherein picture element electrodes () and a common electrode () are provided, each of a plurality of sub-picture elements () is provided with the common electrode () and a corresponding one of the picture element electrodes () in such a manner that the sub-picture elements () have different distances (a first distance dand a second distance d) between the common electrode () and their corresponding ones of the picture element electrodes (), display in a low gray scale region is carried out by means of a first sub-picture element () that is a sub-picture element () in which the distance is short, display in a middle gray scale region is carried out by means of a second sub-picture element () that is a sub-picture element () in which the distance is long, and display in a high gray scale region is carried out by means of the first sub-picture element () and the second sub-picture element ().

Liquid crystal display element, liquid crystal display device, and method for displaying with liquid crystal display element

A liquid crystal panel () includes a pair of substrates () and a liquid crystal layer () sandwiched between the substrates (). At least one of the substrate () is provided with combtooth electrodes (). The liquid crystal layer () is driven by a transverse electric field generated between the combtooth electrodes (). The liquid crystal layer () contains liquid crystal molecules () that align themselves perpendicularly to surfaces of the substrates when no electric field is applied. The liquid crystal panelsatisfies 0.33&#x2266;S/(S+L)&#x2266;0.64, where L is the width of each of the combtooth electrodes () and S is the electrode interval.

Liquid crystal panel and liquid crystal display device

A liquid crystal panel () includes a liquid crystal layer formed with a p-type liquid crystal. The liquid crystal layer exhibits homogeneous orientation while no voltage is applied. Further, an electric field is applied to the liquid crystal layer in a direction same as dipole moments (&#x3bc;) of liquid crystal molecules () to which no voltage is applied. With these arrangements, it is possible to provide a liquid crystal panel and a liquid crystal display device, each of which adopts a new display mode that can achieve a wide viewing angle equivalent to an IPS mode, can achieve a high-speed response like an OCB mode or exceeding the OCB mode, and does not require an initial operation for orientation conversion to the bend orientation.

Liquid crystal panel, liquid crystal display device, and display method of liquid crystal panel

A liquid crystal panel includes: a p-type liquid crystal material sandwiched by a pair of substrates and comb-teeth shape electrodes for applying, to the p-type liquid crystal material, an electric field parallel to a substrate surface. The p-type liquid crystal material is aligned vertically with respect to the substrate surface at the time when no electric field is applied. The comb-teeth shape electrodes have an electrode width of 5 &#x3bc;m or less, and an electrode spacing of 15 &#x3bc;m or less. A product of a dielectric constant anisotropy &#x394;&#x3b5; and a refractive index anisotropy &#x394;n of the p-type liquid crystal material is 1.3 or more and 3.1 or less.

In a method for selectively etching a second silicon layer of a multilayer structure which includes a first silicon layer and the second silicon layer formed on the first silicon layer and doped with impurities according to the present invention, the second silicon layer is selectively etched by using an etching gas including freon-14 gas and a gas selected from a group composed of hydrogen chloride gas and chloride gas.

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Osaka, Japan

Takehisa Sakurai