277 results about "Negative type" patented technology

The performance of a sensor in a semiconductor device can be improved. A plurality of oscillators forming an ultrasonic sensor are arranged on a main surface of a semiconductor chip. A negative-type photosensitive insulating film which protects the oscillators is deposited on an uppermost layer of the semiconductor chip. At the time of exposure for forming an opening in the photosensitive insulating film, the semiconductor chip is divided into a plurality of exposure areas and exposed, and then, the exposure areas are jointed so that the entire area is exposed. At this time, a stitching exposure area is arranged so that a center of the stitching exposure area in a width direction in the joint portion of the adjacent exposure areas is positioned at a center of a line which connects centers of oscillators located above and below the stitching exposure area.

Each of a pair of substrates respectively comprises an electrode and a rubbed alignment film on one surface, while the other surface is provided with a polarizer. The substrates are placed so that the surfaces provided with the alignment films are opposed to each other, and the area between the substrates is filled with a medium to form a material layer. Then, a medium made of a negative-type liquid crystalline compound sing a photopolymerizable monomer and a polymerization initiator is injected into the material layer held between the substrates. Further, ultra violet irradiation is performed with the medium exhibiting a liquid crystal phase, so that the photopolymerized monomer is polymerized, thus forming a polymer chain. In this manner, obtained is a display element, that causes change in degree of optical anisotropy in response to application of electric (external) field, which display element can be driven by a lower intensity electric (external) field.

A liquid discharge head having a substrate provided with energy generating elements for generating energy to discharge a liquid, discharge portions including discharge ports for discharging the liquid, and flow paths supplying the liquid to the discharge portions and a method for its manufacture are provided. The method includes the steps of forming a layer of a negative type photosensitive resin on the substrate, and exposing the layer to light having a wavelength of 365 nm to form the discharge portions.

On one of surfaces of each substrate, an electrode is provided. Then, alignment films, which have been subjected to rubbing treatment, are provided on the respective electrodes so that the alignment films covers the respective electrodes. Moreover, on the other one of the surfaces of each substrate, a polarizer is provided so that its absorption axial direction matches with a rubbing direction of the corresponding alignment film. The substrates face each other so that the rubbing directions of the alignment films respectively provided on the substrates cross each other perpendicularly. A medium having a negative type liquid crystalline property is sealed between the substrates so as to form a material layer. In this way, it is possible to improve contrast and to alleviate coloring phenomenon in a display element in which transmittance is changed by controlling orientational order of molecules.

Disclosed is a resist pattern forming method wherein an exposure mask with a light blocking film having a fine opening not greater than a wavelength of exposure light is placed close to a resist layer provided on a substrate and wherein exposure light is projected to the resist layer through the exposure mask, whereby the resist layer is exposed with near-field light leaking from the fine opening such that a pattern of the exposure mask is transferred to the resist layer. The method includes a resist layer forming step for forming, on the substrate, a negative type resist layer with a thickness not less than a leakage depth of the near-field light, an exposure step for exposing the negative type resist layer with the near-field light, and a development step for developing the exposed negative type resist layer by use of a developing liquid to form a pattern in a region being shallower than the thickness of the negative type resist layer.

Disclosed is a composition of a negative-type photosensitive polyimide which is solvent soluble, which is excellent in adhesiveness, heat resistance, mechanical properties and in flexibility, which shows characteristics of alkali-soluble highly sensitive negative-type photoresist upon irradiation with light, The composition according to the present invention comprises a photo radical initiator and a solvent-soluble polyimide which shows negative-type photosensitivity in the presence of the photo radical initiator.

The present invention relates to an aqueous alkali-developable photosensitive polyimide precursor resin composition that is appropriate for highly heat-resistant transparent protection layers and insulation layers for liquid crystal display devices. In more detail, the present invention relates to a negative-type photosensitive transparent polyimide precursor resin composition manufactured in two steps. The first step is the manufacture of a transparent linear polyamic acid (A) from (a-1) one or more kinds of tetracarboxylic acid dianhydrides selected from alicyclic tetracarboxylic acid dianhydrides having 3 to 30 carbon atoms; and (a-2) one or more kinds of diamines selected from aliphatic, alicyclic, or non-conjugated aromatic diamines, having 3 to 30 carbon atoms, having one or more ethylenically unsaturated bonds at side chains as essential components; and the second step is the manufacture of reactive transparent polyimide precursors shown in the following Chemical Formula 1 according to the esterification reaction of the above polyamic acid (A) with ethylenically unsaturated compound (B) containing an epoxy group in the same molecule as the main component. The photosensitive transparent polyimide precursor resin compositions according to the present invention have a superior photosensitivity, and thus, may be used for transparent protection layers and insulation layers of liquid crystal display devices having superior heat resistance, chemical resistance, mechanical strength, and electricity insulation.

The present invention provides an ink jet recording head forming method which can be improved in a discharging characteristic. The method includes at least the step of forming an ink flow path pattern on a substrate by a photodecomposable positive type resist resin, the step of once executing each of the steps of applying, exposing and baking thereon a nozzle-constituting resin layer which is a negative type resist containing an optical cation polymerization starting agent and having an epoxy resin as a chief component with respect to each of an ink flow path pattern and an ink discharge port pattern, the step of collectively developing unexposed portions on the respective nozzle-constituting resin layers, and the step of removing the formed photodecomposable resin. Therefore, a minute projection is formed at a location separate from the substrate surface side of the cross section of the ink discharge port and thus, the deviation of the flying direction of an ink droplet due to the asymmetry of the inner shape of the ink flow path is minimized.

The invention discloses a method for preparing a porous implant through gelcasting 3D printing and electroreduction. The preparation method comprises steps as follows: according to the human body features of a to-be-implanted part, a personalized gradient porous implant negative-type mold adopting a microstructure is designed by the aid of a medical image data reverse solution model; a gradient porous implant negative-type resin mold is prepared through photo-curing forming equipment; metal oxide ceramic slurry is injected into the negative-type resin mold through a gel injection mold and sintered at the high temperature, and a metal oxide ceramic porous scaffold is obtained; a primary porous metal implant is produced through molten salt in-situ reduction; a metal coating is deposited on the surface of the primary porous metal implant with a chemical vapor deposition method. The defects that implants with complex shapes, precise sizes and uncontrollable microstructures cannot be produced with a traditional porous implant preparation method are overcome, structure nanosizing can be realized, and a new way for preparing the porous implant is expected to be developed.

The invention provides a colorant-containing curable negative-type composition containing at least a colorant, a cross-linking agent, and a photosensitive agent and satisfying the following Condition (1) relevant to the mass of the respective components in the case the composition further contains a binder, and satisfying the following Condition (2) relevant to the mass of the respective components in the case the composition does not contain a binder: Condition (1): wherein the mass of the binder>0, 0.45≦the mass of the colorant / [the mass of the colorant+the mass of the cross-linking agent+the mass of the photosensitive agent+the mass of the binder]≦1.0 and 2≦[the mass of the cross-linking agent / the mass of the binder]; and Condition (2): wherein the mass of the binder=0, 0.45≦the mass of the colorant / [the mass of the colorant+the mass of the cross-linking agent+the mass of the photosensitive agent]≦1.0.

There is provided a dye-containing resist composition comprising a ketol solvent; a negative type resist composition comprising a resin, a photoacid generator or a photobase generator, a crosslinking compound, a dye and a ketol solvent; a negative type resist composition comprising a resin, a photoradical generator, a crosslinking compound, a dye and a ketol solvent; a positive type resist composition comprising a resin, a photoacid generator, a crosslinking compound, a dye and a ketol solvent. The ketol is preferably β-hydroxyketone, more preferably 4-hydroxy-4-methyl-2-pentanone. The resist composition does not occur problems such as occurrence of foreign matters (particles) even when the concentration of dye is increased, and enables the production of color filters in a shape of thinner film.

An electrode is provided on one surface of each of a pair of substrates. On the other surface of each of the substrates, a polarizer is provided. The substrates are assembled together so that their surfaces on which the electrodes are formed face each other. Then, a medium is introduced between the substrates, to form a dielectric material layer. The medium is prepared by mixing a chiral agent in a negative type liquid crystalline compound.

The present invention provides a negative-type photosensitive white composition for a touch panel, the composition including: (A) a white pigment; (B) an alkali-soluble resin; (C) a polyfunctional monomer; and (D) a photopolymerization initiator.

The invention discloses a liquid crystal medium composition, which comprises a negative type liquid crystal material, a stabilizing agent and a reactive monomer capable of performing polymerization under ultraviolet irradiation, wherein the reactive monomer accounts for 0.1%-1% of liquid crystal medium composition according to weight. The reactive monomer at least comprises a reactive monomer descried as a general formula (1) and a reactive monomer descried as a general formula (2), the reactive monomer descried as a general formula (1) accounts for 5%-85% of total amount of the responsive monomer according to mole ratio, a single polymer monomer and a poly polymer monomer in the liquid crystal medium composition can form a polymer under the ultraviolet irradiation, the reaction speed is moderate, the oversized volume of polymer granules can be avoided, loose accumulation can be avoided, the generation of adverse orientation of the liquid crystal and dark state light point phenomenon of a liquid crystal panel can be avoided, and the contrast and optical effect of a liquid crystal display apparatus can be increased. P-L1-X-L2-M_(1).

In a transflective liquid crystal display device, assuming that a narrower angle among angles formed by the initial liquid crystal alignment direction of a liquid crystal layer, and the projection direction of a pixel electrode of a transmissive unit is Et and that a narrower angle among angles formed by the initial liquid crystal alignment direction of the liquid crystal layer, and the projection direction of a pixel electrode of a reflective unit is θr, (1) when the liquid crystal layer possesses a positive-type liquid crystal, the relation of θt>θr is satisfied, and (2) when the liquid crystal layer possesses a negative-type liquid crystal, the relation of θr>θt is satisfied. The relations are satisfied by slanting or bending at least one of the pixel electrodes, and the reflectivity is improved.

A transflective liquid crystal display device with improved display quality in which the liquid initial alignment direction of the liquid crystal layer is in a direction perpendicular to the extending direction of a clearance between the counter electrode of a transmission portion and a counter electrode of a reflection portion or in a direction within a range of ±2° in the clockwise direction perpendicular to the extending direction of the clearance in a case where the liquid crystal layer comprises positive type liquid crystals, or the liquid crystal initial alignment direction of the liquid crystal layer is in a direction parallel with the extending direction of a clearance, or a direction within a range of ±2° in the clockwise direction relative to the extending direction of the clearance in a case where the liquid crystal layer comprises negative type liquid crystals.

The invention provides a manufacture method for a negative type photosensitive resin composition and a cured relief pattern, the negative type photosensitive resin composition can form a cured film with excellent adhesion with a substrate after low-temperature curing. The negative type photosensitive resin composition comprises: 100 mass parts of (A) particularly-structured polyimide precursor; 1-20 mass parts of (B) photopolymerization initiator; and 0.01-10 mass parts of (C) more than one monocarboxylic acid compound containing 2-30 carbons and selected from a functional group formed by hydroxyl group, ether group, and ester group.

A dye-containing negative-type curable composition including at least (A) an alkali-soluble binder, (B) an organic solvent-soluble dye, (C) a photopolymerization initiator, (D) a photopolymerizable compound, and (E) an organic solvent, wherein the organic solvent (E) contains two or more kinds of organic solvents, or the organic solvent (E) contains a high-boiling solvent having a boiling point of 160° C. or more.

The invention provides a pixel structure of a liquid crystal display panel. The pixel structure of a liquid crystal display panel comprises a first substrate, a first electrode, a dielectric layer, a second electrode, a second substrate, and a liquid crystal layer, wherein the first electrode is arranged on the first substrate, the dielectric layer is arranged on the first substrate and covers the first electrode, and the second electrode is arranged on the dielectric layer. The second electrode comprises at least a main trunk electrode, multiple branch electrodes which are connected with the main trunk electrode, and multiple narrow slits which are respectively formed between neighboring branch electrodes. The second substrate is arranged opposite to the first substrate, the liquid crystal layer is arranged between the second electrode and the second substrate, and the liquid crystal layer comprises multiple negative type vertically aligned liquid crystal molecules.

Apparatus, devices, systems, and methods for wide viewing angle and broadband circular polarizers in transflective displays. A liquid crystal display configuration can include two stacked circular polarizers, each having a linear polarizer, a half-wave plate and a quarter-wave plate wherein two linear polarizers are crossed to each other, two half-wave plates are made of uniaxial A plates with opposite optical birefringence (one positive and one negative type), and two quarter-wave plates are made of uniaxial A plates with opposite optical birefringence (one positive and one negative type). The configurations can generate wide viewing angles and broadband properties and are suitable for display applications that require circular polarizers.

The invention relates to a ligament-bone composite scaffold with a biomimetic connecting interface and a forming method thereof. The forming method comprises the following steps: firstly simulating a natural ligament-bone interface structure and utilizing a rapid forming technology to manufacture a resin negative type of a bone scaffold model with a fiber connecting structure; pouring a bone scaffold material solution into the resin negative type, and performing freeze-drying and high-temperature sintering to manufacture a bone scaffold with an internal communication pipeline and the fiber connecting structure; then primarily connecting ligament fiber with the fiber connecting structure of the bone scaffold, and fixing a die used for manufacturing of a biomimetic interface with a ligament-bone scaffold formed by primary connection; pouring the ligament material composite solution with the bone scaffold material in various changes of concentration into the interface of the ligament and the bone scaffold as secondary connection; and performing freeze-drying and removing the die, so as to obtain the ligament-bone composite scaffold with the biomimetic interface. According to the invention, the transmission of nutrients and metabolites is facilitated, the connecting strength of the ligament-bone composite scaffold is improved, and the ingrowth of cells after implantation is facilitated.

Provided are: a negative-type photosensitive resin composition containing a black organic pigment, having good properties of dispersion of a contained organic pigment into an alkaline developer and good storage stability, and wherein formation of a partition wall having both a fine pattern and microscopic contact holes is possible in the negative-type photosensitive resin composition; the partition wall obtained by curing the negative-type photosensitive resin composition; a black matrix; and an optical element having the black matrix. The negative-type photosensitive resin composition contains: an alkali-soluble resin including an aromatic ring in the main chain thereof, and having an acidic group and an ethylenic double bond in the molecules thereof; an alkali-soluble resin not including an aromatic ring in the main chain thereof, and having an acidic group in the molecules thereof; the black organic pigment; and a photopolymerization initiator. The negative-type photosensitive resin composition is characterized by having a solid acid number of 10-50 mg KOH / g.

The invention discloses a method for slow released regulating and controlling internal cooling type of water microcirculation in large electrical generator as well as monitoring system. When PH value of internal cooling water in circulation system and electric conductivity are less than a certain value, the inlet and outlet valves of small mixing bed are started, making part of internal cooling water pass through a bypass circulation system go along a microcirculation. Thus alkaline matter in microscale slow released is carried in certain range. When PH value of internal cooling water in circulation system and electric conductivity reach a certain value, the inlet and outlet valves are closed. When said values are in certain value, the drainage valve and water compensation valve of demineralized water is opened till electric conductivity of internal cooling water is less than a certain value. The alkaline matter includes negative type of resin and positve type of resin. The monitoring system is composed of water quality monitor and control system, bypass circulation processing control system and water compensation pollution discharge controlling system. The invention can effectively prevent water quality of internal cooling water from deterioration, restrain copper conductor from corrupt. It can be used in large type of generator group in thermal power stations, nuclear powre station and hydroelectric power station.

A negative-type photosensitive resin composition which is good in sensitivity and resolution, a pattern forming method by the use thereof wherein a pattern which can be developed in an alkali aqueous solution, is excellent in sensitivity, resolution and heat resistance and has a good shape is obtained, and highly reliable electronic parts are provided. The negative-type photosensitive rein composition includes (a) a polymer that has a phenolic hydroxyl group at a terminal and is soluble in the alkali aqueous solution, (b) a compound that generates an acid by irradiating active light, and (c) a compound that can be crosslinked or polymerized by an action of the acid.