36results about How to "Alignment control" patented technology

The present invention provides a liquid crystal display device capable of suppressing generation of the image sticking in AC mode and a polymer for alignment film materials. The present invention is a liquid crystal display device including:a pair of substrates;a liquid crystal layer containing liquid crystal molecules; andan alignment film,the liquid crystal layer being interposed between the pair of substrates,the alignment film being arranged on a liquid crystal layer side-surface of at least one of the pair of substrates,wherein the alignment film is obtainable by providing a film with an alignment treatment by photoirradiation,the film being formed from an alignment film material,the alignment film material including a polymer containing a first constitutional unit and a second constitutional unit,the first constitutional unit exhibiting a property of controlling alignment of the liquid crystal molecules by photoirradiation,the second constitutional unit exhibiting the property of controlling alignment of the liquid crystal molecules regardless of photoirradiation.

A picture electrode of an MVA liquid crystal display device has a configuration where sub-picture electrodes are successively provided, while a cross-shaped slit is provided as an alignment restriction member on a common electrode of the side of a counter substrate. A columnar spacer is provided on a signal line of a TFT substrate in conformity to a position of a singular point of an alignment of liquid crystal molecules, the singularity occurring in a display region. This structure makes it possible, when a panel surface is depressed, to cause quick re-aligning of the liquid crystal molecules at the singular point of +1, as a base point, which has occurred at a center of the cross-shaped slit and in the vicinity of the columnar spacer, hence achieving a speedy recovery of displaying.

The invention provides a liquid crystal display device having a wide viewing angle for transmissive display and reflective display. The liquid crystal display device according to the invention can include a homeotropic liquid crystal layer interposed between a pair of substrates. The liquid crystal display device has a transmissive display area and a reflective display area in each dot area. A liquid crystal layer thickness-adjustment layer can be interposed between at least the substrate of the pair of substrates and the liquid crystal layer. The liquid crystal layer thickness-adjustment layer reduces the liquid crystal layer thickness of the reflective display area in comparison with the liquid crystal layer thickness of the transmissive display area. On the substrate opposing the substrate with the liquid crystal layer thickness-adjustment layer, protrusions protruding from the inner surface of the substrate to the liquid crystal layer are formed.

A liquid crystal device includes a first substrate that has an inner surface on which a pixel electrode is formed; a second substrate that has an inner surface on which a counter electrode constituting a pixel is formed opposite to the pixel electrode; and a liquid crystal layer that is held between the first substrate and the second substrate and has negative dielectric anisotropy. In addition, an alignment control unit for controlling the alignment of the liquid crystal molecules is formed in an area including the center of the pixel electrode on either the first substrate or the second substrate; and the pixel electrode has an approximately polygonal shape, and slits extending from an outer periphery toward the center are formed at corner portions of the pixel electrode.

The present invention provides: a composition for forming a liquid crystal alignment film capable of forming a liquid crystal alignment film excellent in evenness; and a liquid crystal display device. The present invention provides a composition for forming a liquid crystal alignment film, wherein the composition comprises: a material for forming a liquid crystal alignment film; diethylene glycol diethyl ether; diisobutyl ketone; and at least one of γ-butyrolactone and N-methyl-2-pyrrolidone as solvents.

A method and apparatus to reduce the amount of required memory and instruction cycles when implementing Fast Fourier Transforms (FFTs) on a computer system is described. The invention optimizes FFT software using in-place bit reversal (IPBR) implemented on a processor capable of bit reversed incrementation. Alternative embodiments implement the invention for out of place bit reversal (OOPBR) and on processors that do not support special instructions for bit reversed incrementation. The invention only generates unique bit-reversed address pairs and avoids generation of self-reversed addresses. To optimize the invention for in place bit reversal, every non-self bit reversed address in the input array is generated only once, while making simple, computationally efficient increments away from the previous pair of bit reversed addresses. The address pair generator can independently advance only one address in each address pair, and bit reversal of one address uniquely defines the other address.

The present invention provides a TBA-mode transflective liquid crystal display device in which components such as a multigap structure and a quarter-wave plate can be omitted. The liquid crystal display device includes: a first substrate and a second substrate that are disposed opposite each other; and a liquid crystal layer that is interposed between the first substrate and the second substrate, and having, in a pixel area, a reflective area where reflective display is performed and a transmissive area where transmissive display is performed, wherein the first substrate has a first electrode provided in the transmissive area and the reflective area, a second electrode provided in the transmissive area and disposed parallel to and opposite the first electrode inside the pixel area, and a third electrode provided in the reflective area and disposed parallel to and opposite the first electrode inside the pixel area, the liquid crystal layer includes a p-type nematic liquid crystal and is driven by an electric field generated at least one of between the first electrode and the second electrode and between the first electrode and the third electrode, the p-type nematic liquid crystal is aligned perpendicular to the first substrate and the second substrate when no voltage is applied, a distance between the first electrode and the third electrode is different from a distance between the first electrode and the second electrode, and mutually different common signals are input to the second electrode and the third electrode.

A liquid crystal display device includes an array substrate, a counter substrate and a liquid crystal layer having liquid crystal molecules interposed therebetween. The liquid crystal molecules are aligned in a direction normal to a surface of the substrates under a condition where no electrical voltage is supplied between a picture electrode and a counter electrode. An alignment control device is provided at the counter substrate and configured to control the alignment of the liquid crystal molecules under a condition where an electric field is applied between the picture electrode and the counter electrode. A scanning line crossing a pixel is divided into first and second segments. The array substrate includes a connecting element to connect the first and second segments opposite the alignment control device.

The invention discloses an edge electric filed switching type liquid crystal display device which comprises a first substrate and a second substrate, wherein gate lines and data lines which are mutually crossed are arranged on the first substrate to form a pixel region; a thin film transistor is arranged on the first substrate and connected with the gate lines and the data lines; a common electrode is arranged on the first substrate and positioned in the pixel region; a pixel electrode has an annular structure which is arranged on the common electrode and partially overlapped with the common electrode; the pixel electrode is connected with the thin film transistor; the compensating structure of the pixel electrode is arranged in the non-overlapping region of the pixel electrode and the common electrode; the compensating structure of the pixel electrode is connected with the pixel electrode; the second substrate is arranged corresponding to the first substrate; and a liquid crystal layer is arranged between the first substrate and the second substrate.

The invention relates to an automatically-assembled welding clamp with a steel structure. The automatically-assembled welding clamp comprises a welding rack, an aligning mechanism, a rolling levelingmechanism and an adjusting mechanism. The problems in the welding process of the steel structure can be solved and are as follows: a, in the traditional welding process, the clamping specification forthe steel structure is fixed, the clamp of one specification can only respond to one steel structure, as for steel structures of different specifications in practical production, in the welding process, clamps need to be frequently replaced, a process is tedious, and the production cost is high; b, in the traditional welding process, the problems that weldments are aligned incompletely, and weldsurfaces are not uniform probably exist, and using of steel structures after welding is influenced; and c, in the traditional welding process, the weldments are only attached together, after welding is completed, the problem that weld joints are prone to being broken probably exists, and the welding effect is poor.

A liquid crystal display device, which is configured to have a liquid crystal layer held between a pair of substrates, includes a display area including a red color pixel, a green color pixel and a blue color pixel, a pixel electrode which is disposed in each of the color pixels, a counter-electrode which is opposed to the pixel electrode via an interlayer insulation film, and an alignment film which is disposed in contact with the liquid crystal layer and is subjected to such rubbing treatment as to restrict alignment of liquid crystal molecules included in the liquid crystal layer. The pixel electrode has a slit which is formed to be inclined with respect to a direction of rubbing of the alignment film, and the slit of the red pixel and the slit of the blue pixel are formed to be inclined in different directions.

Before cutting a gang-printed substrate having a multiplicity of liquid crystal display panel regions provided thereon into individual liquid crystal display panels, a voltage is applied to all of the multiplicity of liquid crystal display panel regions to inspect display defects, polymerize a monomer in the liquid crystal component, and control alignment of the liquid crystal, which allows the time required for a voltage applying step to be reduced and allows a reduction in the manufacturing cost. A dispenser injection process is used to allow a liquid crystal to be injected between mother boards that have not been cut into individual display panels, and a voltage is applied after the pair of glass substrates are combined and before they are cut into individual display panels to perform a test on display defects (dynamic operating test), pretilt control, and an aligning process.

The invention relates to a preparation device for micro-nanofibers, and aims to provide a spinning device for preparation of micro-nanofibers. The spinning device comprises a collection system, a spinning system and a continuous feeding system, wherein the spinning system comprises a motor, an insulating coupling and a spinner; rotating shafts of the motor and the spinner are both vertically mounted and connected through the insulating coupling; the main body of the spinner is hollow, and a spinning solution inlet is formed in the upper part of the spinner; a plurality of dispense needles are arranged outside the main body of the spinner in a surrounding manner and communicated with the interior of the spinner through connecting pieces. The spinning device can effectively collect fibers, more equipment can be arranged on a limited field, continuous production can be realized, and the production efficiency is improved; the thickness uniformity of fibrous membranes can be effectively adjusted, the content of beads of an obtained micro-nanofiber web is greatly reduced, and the electrostatic function contributes to improvement of the mechanical property of the fibers.

Provided are a liquid-crystal-composition achievable of vertical-alignment of liquid-crystal-molecules by polymer-action, and a liquid-crystal-display-device including the composition. The liquid-crystal-composition has negative-dielectric-anisotropy and contains at least one compound selected from polar compounds represented by formula (1) as first-additive and at least one compound selected from compounds represented by formula (2) as first-component, and the liquid-crystal-display-device includes the composition.In formulas (1) and (2), R1 is hydrogen, halogen or 1-12C alkyl, R2 is a group represented by —OH, —OR0, —NH2, —NHR0 or —N(R0)2, in which R0 is 1-5C alkyl; R3 and R4 are independently 1-12C alkyl or 2-12C alkenyl; rings A, B and C are independently 1,4-cyclohexylene or 1,4-phenylene; ring D is 1,4-phenylene in which at least one hydrogen is replaced by fluorine or chlorine; Z1, Z2 and Z3 are independently single-bond; Sp1 and Sp2 are independently single-bond, 1-7C alkylene; a is 0 to 4; and b is 0 to 1.

The present invention provides: a composition for forming a liquid crystal alignment film capable of forming a liquid crystal alignment film excellent in evenness; and a liquid crystal display device. The present invention provides a composition for forming a liquid crystal alignment film, wherein the composition comprises: a material for forming a liquid crystal alignment film; diethylene glycol diethyl ether; diisobutyl ketone; and at least one of γ-butyrolactone and N-methyl-2-pyrrolidone as solvents.

A liquid crystal display device, which is configured to have a liquid crystal layer held between a pair of substrates, includes a display area including a red color pixel, a green color pixel and a blue color pixel, a pixel electrode which is disposed in each of the color pixels, a counter-electrode which is opposed to the pixel electrode via an interlayer insulation film, and an alignment film which is disposed in contact with the liquid crystal layer and is subjected to such rubbing treatment as to restrict alignment of liquid crystal molecules included in the liquid crystal layer. The pixel electrode has a slit which is formed to be inclined with respect to a direction of rubbing of the alignment film, and the slit of the red pixel and the slit of the blue pixel are formed to be inclined in different directions.

A liquid crystal display device suppresses generation of image sticking in AC mode. A liquid crystal display device comprises an alignment film arranged on at least one of a pair of substrates. The alignment film comprises a polymer containing a first constitutional unit and a second constitutional unit. The first constitutional unit controls alignment of the liquid crystal molecules by photoirradiation. The second constitutional unit controls alignment of the liquid crystal molecules regardless of photoirradiation.

The invention discloses an overlay method for nano-scale components. The method comprises the steps: making a zone plate required hollow substrate, employing electron-beam direct writing for the first time to form a required alignment mark and a pattern A on the hollow substrate, forming a gold layer of the alignment mark and the pattern A by electroplating after developing, removing electron beam photoresist to form the required patterns afterwards, employing the electron-beam direct writing for the second time on the basis of the required patterns formed to form more precise patterns according to the alignment mark, and electroplating after developing to form a pattern B. Compared with the components made by a conventional nanometer manufacturing process, the components made by the overlay process method for nano-scale components provided by the invention have greater resolution, denser lines, and more broad prospects in the application aspect of high-precision components.

The invention discloses an alignment method for an underwater vehicle, and the method comprises the following steps: obtaining a target image of a target region, the target region comprising a light-emitting laser light source; extracting a region of interest corresponding to the laser light source in the target image; performing shape recognition on the region of interest to obtain a shape recognition result of the region of interest; and controlling the underwater vehicle to be aligned with the laser light source based on the shape recognition result and the region of interest. The invention further discloses an alignment device, the underwater vehicle and a computer readable storage medium. By means of the alignment method, the motion range of the underwater vehicle is large.

The invention relates to vapor etching alignment equipment. The vapor etching alignment equipment is characterized by comprising a platform, a spray gun, a high-pressure vapor spraying system and a movement system, wherein the platform is used for carrying a glass substrate, the spray gun is arranged above the platform, the high-pressure vapor spraying system is used for providing high-pressure vapor flow for the spray gun, and the movement system is used for driving the platform or the spray gun to do relative movement. The invention also provides a vapor etching alignment method using the vapor etching alignment equipment. The vapor etching alignment method comprises the following steps of aligning the spray gun with an alignment film, and adjusting an included angle between the spray gun and the alignment film to a preset angle theta; starting the high-pressure vapor spraying system, adjusting the vapor pressure, and performing vapor etching when the vapor pressure is greater than the vapor etching critical value x. The vapor etching alignment equipment and the vapor etching alignment method have the advantages that the direct contact with the alignment film is avoided, the generation of micro particles, static electricity and scratches at the surface of the alignment film are effectively avoided, the obtained vapor etching grooves are regular, and the alignment of liquid crystals is favorably controlled.

Provided is a resin mold which is fixed to an accurate position on a roll for use in an imprinting device of roll transfer system by a simple method and thereby facilitates control of alignment of the resin mold with a transfer object resin. The imprinting transfer roll is an imprinting transfer roll including a roll body around a peripheral surface of which a resin film substrate is to be wound, to said resin film substrate a resin mold having a fine recessed-protruded pattern formed on its surface having been affixed, wherein the roll body is divided into two and thereby constituted of one divided body and the other divided body, and between divided faces of these first divided body and second divided body to be joined together, one end of the resin film substrate is to be sandwiched to integrate the first divided body and the second divided body, and then the resin film substrate is to be wound around in the circumferential direction of the roll body.

The invention relates to a steel structure automatic assembly welding fixture, which comprises a welding frame, an alignment mechanism, a rolling leveling mechanism and an adjustment mechanism. The present invention can solve the following problems in the welding process of steel structures: a. In the traditional welding process, the clamping specifications for steel structures are fixed, and one type of clamp can only correspond to one type of steel structure. For steel structures of different specifications, fixtures need to be replaced frequently during the welding process, the process is cumbersome, and the production cost is high. bIn the traditional welding process, there may be problems such as incomplete alignment between weldments and uneven welding surfaces. It affects the use of the steel structure after welding. In the traditional welding process, the weldments are only close together. After the welding is completed, there may be problems such as the weld is easy to break, and the welding effect is not good.

A method that allows an optical wireless communication link between transmitting and receiving stations to be established and used reliably without the need for position sensing capabilities. A small random nudge of the center of the acquisition spiral is used to prevent a link from being established before proper alignment is attained or to correct the alignment of an established link which does not have sufficient alignment to maintain a high bandwidth link.