| Patent application number | Description | Published |
|---|
| 20090103018 | Liquid Crystal Display Device - A glass substrate ( | 04-23-2009 |
| 20090168002 | Liquid Crystal Display Device - Each pixel has a transmissive area and a reflective area. A first alignment process area and a second alignment process area are placed such that an overlapping region is created in part of the reflective area. A region where the liquid crystal alignment direction shifts continuously is created in a boundary between the transmissive are a and the reflective are a without exception. A first liquid crystal alignment region is formed wider than the transmissive area, and a second liquid crystal alignment region is formed narrower than the reflective area. | 07-02-2009 |
| 20100073609 | POLARIZER AND LIQUID CRYSTAL DISPLAY - Provided are a polarizer having high in-plane uniformity and high heat resistance, and a liquid crystal display (LCD) using the polarizer and having the following characteristics: the LCD is excellent in mass productivity, has the contrast ratio being improved, and has high image quality. The LCD includes: a pair of substrates at least one of which is transparent; a liquid crystal layer placed between the pair of substrates; an electrode group for applying an electric field to the liquid crystal layer, the electrode group being formed on at least one substrate of the pair of substrates; multiple active elements connected to the electrode group; and an alignment control film placed on at least one substrate of the pair of substrates, in which the molecules of a dichroism pigment aligned on at least one surface of the alignment control film and the dichroism pigment are cross-linked with a crosslinkable monomer. | 03-25-2010 |
| 20110080547 | LIQUID CRYSTAL DISPLAY DEVICE - Provided is a liquid crystal display device including: a pair of substrates, at least one of which is transparent; a liquid crystal layer arranged between the pair of substrates; an electrode group formed on at least one of the pair of substrates, for applying an electric field to the liquid crystal layer; and an alignment control film arranged on at least one of the pair of substrates, in which the alignment control film is made of a polyimide and a polyimide precursor, and the polyimide and the polyimide precursor have an aromatic ring and a cross-linking moiety in the main chain in chemical structure, are free from a side chain component having 2 or more carbon atoms in the aromatic ring, contain a cyclobutanetetracarboxylic dianhydride as a raw material, and are irradiated with light that has been substantially linearly polarized to provide an alignment regulating force. | 04-07-2011 |
| 20110109857 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device, comprising: a pair of substrates at least one of which is transparent; a liquid crystal layer arranged between the pair of substrates; a group of electrodes for applying an electric field to the liquid crystal layer, as formed on at least one substrate of the pair of substrates; a plurality of active elements connected to the group of electrodes; and an orientation film arranged on the pair of substrates, wherein at least one orientation film contains a polyimide having a specific chemical structure of any of an anionic organic acid except organic acids in the narrow sense, or an acid ester group of an anionic organic acid except organic acids in the narrow sense. | 05-12-2011 |
| 20110222006 | LIQUID CRYSTAL DISPLAY DEVICE - Provided is a liquid crystal display device having a structure in which one surface of the alignment film contacts a liquid crystal layer, the other surface of the alignment film contacts an underlying layer, the refractive index of the alignment film monotonically increases in a film thickness direction of the alignment film from a boundary surface between the liquid crystal layer and the alignment film to a boundary surface between the underlying layer and the alignment film, and the minimum refractive index n | 09-15-2011 |
| 20120075563 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREFOR - Provided is a liquid crystal display device, including: a liquid crystal layer filled between a first and a second substrate; two polymer structures; and a plurality of pixels each including a first and a second electrode, one of the first and the second electrode being a pixel electrode, in which: each of the plurality of pixels is provided within a region surrounded by a signal line, a part of the signal line being formed between adjacent two of the plurality of pixels; each of the two polymer structures, which extends along the part of the signal line so as to sandwich the part of the signal line in plan view and is formed from one of the first and the second substrate toward another thereof, is formed so as to overlap with any of the region; and the two adjacent polymer structures has the liquid crystal layer provided therebetween. | 03-29-2012 |
| 20120088040 | ALIGNMENT FILM, COMPOSITION FOR FORMING ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE - Disclosed is a liquid crystal display device including: a first substrate and a second substrate, one of which is transparent; a liquid crystal layer disposed between the first substrate and the second substrate; a group of electrodes for applying an electric field to the liquid crystal layer, which is formed on one of the first substrate and the second substrate; a plurality of active elements connected to the group of electrodes; and an alignment film disposed on one of the first substrate and the second substrate, wherein the alignment film contains a polyimide and a precursor of the polyimide, each of which is formed from a diamine and an acid anhydride, and the diamine contains a first diamine having an acidic group and a second diamine having a nitrogen atom-containing functional group other than two amino groups. | 04-12-2012 |
| 20130293814 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes: a pair of substrates, at least one of which is transparent; a liquid crystal layer placed between the pair of substrates; an electrode group, formed on at least one of the pair of substrates, for applying an electric field to the liquid crystal layer; and an alignment control film placed on at least one of the pair of substrates, in which the alignment control film is formed of polyimide and a precursor of the polyimide, each of the polyimide and the precursor of the polyimide contains, as a material, a specific cyclobutanetetracarboxylic acid dianhydride derivative and aromatic diamine, and the alignment control film is provided with alignment capability by photo-alignment treatment. | 11-07-2013 |
| 20140104553 | Liquid Crystal Display Device - A liquid crystal display device includes first and second substrates, at least one of which is transparent, a liquid crystal layer which is disposed between the first and second substrates, a pixel electrode and a common electrode which are formed on one of the first and second substrates and which apply an electric field to the liquid crystal layer, a plurality of active elements which is connected to the pixel electrode and the common electrode, an alignment film which is disposed on at least one of the first and second substrates and has one surface contacting the liquid crystal layer, and an underlying layer which is disposed on at least one of the first and second substrates and contacts the other surface of the alignment film. The pixel electrode is laminated on the common electrode having a plane shape through an isolation film. | 04-17-2014 |
| Patent application number | Description | Published |
|---|
| 20080284949 | POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME - An object of the present invention is to provide a liquid crystal display device having a wide view angle, reduced power consumption and high quality with an absorption axis of a polarizing plate and an optical axis of a retardation plate made to coincide with high accuracy without using expensive equipment and complicated steps. On a transparent substrate | 11-20-2008 |
| 20090053430 | Liquid Crystal Display Device and Manufacturing Method Thereof - Disclosed herein is an IPS type liquid crystal display device superior in mass productivity and improved in image quality with a higher contrast ratio by decreasing the occurrence of defective display due to the disorder of the initial liquid crystal alignment by the liquid orientation control film and realizing stable alignment of liquid crystals. A liquid crystal display device comprises: a pair of substrates | 02-26-2009 |
| 20100060836 | LIQUID CRYSTAL DISPLAY DEVICE - An image retention phenomenon and black unevenness generated after long-time operation in the liquid crystal device are prevented. By using a material having a polyamide acid ester as a precursor less likely to adsorb impurities on a boundary for an alignment film and a material having a dielectric constant anisotropy Δε of 5 or less for liquid crystals, adsorption of an antioxidant dispersed in the liquid crystals is suppressed to prevent oxidation of the liquid crystals. The extent that impurities are intruded into the liquid crystals is reduced by restricting the dielectric constant anisotropy Δε of the liquid crystals to 5 or less, thereby capable of preventing the image retention phenomenon and the black unevenness. | 03-11-2010 |
| 20100165278 | LIQUID CRYSTAL DISPLAY DEVICE - Provided is a liquid crystal display device including: a plurality of column spacers and a first alignment film which are formed above the first substrate; an insulating layer which is formed on the second substrate and a second alignment film which is formed on the insulating layer; and column spacer receiving members which are provided between the insulating layer and the second alignment film in places opposed to the plurality of column spacers, the column spacer receiving members each being made of a material different from both of a material of the insulating layer and a material of the second alignment film, in which a thickness of the second alignment film in places above the column spacer receiving members is ⅓ or less of a thickness of the second alignment film in places in which the second alignment film is formed directly on the insulating layer. | 07-01-2010 |
| 20110199565 | LIQUID CRYSTAL DISPLAY DEVICE - This invention enables forming a photo-alignment film having a large LC anchoring strength in an IPS type liquid crystal display device. An alignment film is adapted to have a two-layer structure including a photo-alignment film and an alignment film with enhanced film strength. The photo-alignment film is formed of a precursor of polyamide acid ester, 80 percent or more of which is polyamide acid ester including cyclobutane. The alignment film with enhanced film strength is formed of a precursor of polyamide acid. After irradiating the substrate with ultraviolet light for photo-alignment, the substrate is heated. Thus, it is possible to achieve a high LC anchoring strength of the alignment film as the whole for photo-alignment, without degrading the mechanical strength of the alignment film with enhanced film strength. | 08-18-2011 |
| 20110221984 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes: a pair of substrates, at least one of which is transparent; a liquid crystal layer placed between the pair of substrates; an electrode group, formed on at least one of the pair of substrates, for applying an electric field to the liquid crystal layer; and an alignment control film placed on at least one of the pair of substrates, in which the alignment control film is formed of polyimide and a precursor of the polyimide, each of the polyimide and the precursor of the polyimide contains, as a material, a specific cyclobutanetetracarboxylic acid dianhydride derivative and aromatic diamine, and the alignment control film is provided with alignment capability by photo-alignment treatment. | 09-15-2011 |
| 20120057115 | LIQUID CRYSTAL DISPLAY DEVICE - An IPS liquid crystal display device intended to prevent generation of second image sticking after generation of initial DC image sticking. | 03-08-2012 |
| 20120135661 | SOLVENT FOR MAKING LIQUID CRYSTAL ALIGNMENT FILM, MATERIALS FOR THE ALIGNMENT FILM, AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY - Provided is a solvent for forming an alignment film capable of fabricating a liquid crystal alignment film having high quality, an improved imidization ratio, large surface anisotropy, and a strong anchoring force. The solvent for forming an alignment film including a polymer for a liquid crystal display includes the polymer of the alignment film including polyimide and a variable compound capable of changing a chemical structure for evaporating after imidizing and sintering, which is in a liquid state during a film-forming process of coating, imidizing, and sintering polyamic acid which is a precursor of polyimide. | 05-31-2012 |
| 20120224114 | Liquid Crystal Display Device and Manufacturing Method Thereof - The present invention prevents the shaving of an alignment film caused by a columnar spacer in a liquid crystal display device of an IPS method using photo-alignment. A plinth higher than a pixel electrode is formed at a part where a columnar spacer formed over a counter substrate touches a TFT substrate. When an alignment film of a double-layered structure is applied over the pixel electrode and the plinth, the thickness of the alignment film over the plinth reduces by a leveling effect. When photo-alignment is applied in the state, a photodegraded upper alignment film over the plinth disappears and a lower alignment film having a high mechanical strength remains. As a result, it is possible to prevent the shaving of the alignment film. | 09-06-2012 |
| 20120268678 | LIQUID CRYSTAL DISPLAY DEVICE - An object of the present invention is to enhance transmissivity and the luminance of a screen in an IPS liquid crystal display device. To achieve the object, in the IPS liquid crystal display device according to the present invention, a counter electrode is formed flatly and solidly on an organic passivation film, a pixel electrode having a slit is formed on the counter electrode via an interlayer insulation film, and an alignment film the orientation of which is controlled by optical orientation is formed on the pixel electrode. The transmissivity is enhanced by also making the inside of the contact hole function as a transmissible area for image formation by applying optical orientation to the alignment film in the contact hole to result in enhancement of the luminance of the screen. | 10-25-2012 |
| 20120268702 | LIQUID CRYSTAL DISPLAY DEVICE - Provided is a high quality liquid crystal display device adapted to suppress scraping of alignment film and prevent micro light spot fault. The liquid crystal display device comprises: a plurality of columnar spacers and a first alignment film disposed over a first substrate; an insulation film disposed over a second substrate; and a second alignment film disposed over the insulation layer; receiving pedestals for the columnar spacers, wherein: the second alignment film is not formed over the central portion of each of the receiving pedestals; and around the outer peripheral portion of each receiving pedestal, the second alignment film has an inclined thickness distribution which is such that the thickness thereof increases gradually from the central portion to the outside position of the receiving pedestal. | 10-25-2012 |
| 20140046004 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - An IPS type liquid crystal display device superior in mass productivity and improved in image quality with a higher contrast ratio by decreasing the occurrence of defective display due to the disorder of the initial liquid crystal alignment by the liquid orientation control film and realizing stable alignment of liquid crystals comprises: a pair of substrates, at least one which is transparent; a liquid crystal layer disposed between the pair of substrates; a group of electrodes formed on at least one of the pair of substrates to apply an electric field to the liquid crystal layer; plural active elements connected to the group of electrodes; and an orientation control film disposed on at least one of the pair of substrates, wherein said orientation control film is made of a photosensitive polyimide and a polyamide acid ester and is given orientation control ability by being irradiated with substantially linearly polarized light. | 02-13-2014 |
| 20140144582 | Liquid Crystal Display Device - A method for fabricating a liquid crystal display device having a TFT substrate in which an alignment film is formed over a pixel including a pixel electrode and a TFT, an opposing substrate which faces the TFT substrate, and liquid crystals sandwiched between the TFT substrate and the opposing substrate, the alignment film on the TFT substrate including a first and a second alignment film. The method includes depositing a mixture liquid of polyamide acid ester, 80 percent or more of which is polyamide acid ester including cyclobutane, and polyamide acid not including cyclobutane onto the TFT substrate and the opposing substrate, and after drying and firing the TFT substrate and the opposing substrate to harden the alignment film, irradiating the alignment film with ultraviolet light for photo-alignment of the alignment film and, thereafter, heating the TFT substrate and the opposing substrate, thereby forming the alignment film. | 05-29-2014 |
| 20150062519 | ALIGNMENT FILM, COMPOSITION FOR FORMING ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE - Disclosed is a liquid crystal display device including: a first substrate and a second substrate, one of which is transparent; a liquid crystal layer disposed between the first substrate and the second substrate; a group of electrodes for applying an electric field to the liquid crystal layer, which is formed on one of the first substrate and the second substrate; a plurality of active elements connected to the group of electrodes; and an alignment film disposed on one of the first substrate and the second substrate, wherein the alignment film contains a polyimide and a precursor of the polyimide, each of which is formed from a diamine and an acid anhydride, and the diamine contains a first diamine having an acidic group and a second diamine having a nitrogen atom-containing functional group other than two amino groups. | 03-05-2015 |
