Patent application number | Description | Published |
20080230178 | Method for manufacturing liquid crystal display device - Smectic liquid crystal is dropped by a dropping method in which a plurality of droplets of smectic liquid crystal are dropped to an alignment film so that the droplets are aligned in a line which is parallel to a rubbing direction of the alignment film which is formed in a region surrounded by a seal pattern of a sealant having an opening over a substrate. Excess liquid crystal is drained away from the seal pattern of a sealant through the opening of the seal pattern. | 09-25-2008 |
20080230179 | Method for manufacturing liquid crystal display device - To prevent alignment disorder of liquid crystal molecules, which is caused in manufacturing steps, and to manufacture a liquid crystal display device including a uniform liquid crystal layer in which liquid crystal molecules are aligned with high accuracy. In addition, to provide a technique for manufacturing a liquid crystal display device which is capable of fast response and high performance, and has high image quality with reduced display defects, with high yield. A method for manufacturing a liquid crystal display device, including dropping smectic liquid crystal by a dropping method in which a plurality of droplets of smectic liquid crystal are dropped to an alignment film so that the droplets are aligned in a line which is parallel to a rubbing direction of the alignment film which is formed in a region surrounded by a seal pattern of a sealant over a substrate. | 09-25-2008 |
20080266509 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD - In a method for manufacturing a liquid crystal display device in which a liquid crystal layer is formed by dropping liquid crystal by a dropping method, a surface of a sealant which is formed over a first substrate is cured by a first cure treatment before dropping the liquid crystal, and then the liquid crystal is dropped. A second substrate has a plurality of projections in a sealant adhesive region. The first substrate and the second substrate are attached to each other with the liquid crystal interposed therebetween so that the plurality of projections is in contact with an uncured region in the sealant formed over the first substrate. | 10-30-2008 |
20080284970 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - To further ensure the electrical connection of a conductor between an opposite electrode of an opposite substrate and a connection wiring of a TFT substrate, and to prevent diffusion of impurities contained in a sealing material mixed with conductive particles or a conductive paste into a liquid crystal layer. In order to isolate the sealing material containing a conductive particle or the conductive paste from the liquid crystal layer, the shape of top surface of the sealing material is a shape in which a plurality of circular shapes are combined, which is a shape having no opening. Further, the sealing material forms a plurality of compartments such that a compartment in which a pixel region is provided and a compartment in which a conductor is provided are blocked out. | 11-20-2008 |
20090002619 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME - A liquid crystal dripping method has a problem in that an uncured sealant increases in width at the time of attaching a pair of substrates and thus a liquid crystal material enters the sealant and unevenness occurs in the inner periphery of the sealant. A region in which reduced is the speed of diffusion of liquid crystal at the time of attaching a pair of substrates is provided between a sealant and an orientation film. Further, time for diffusing the liquid crystal and coming in contact with the sealant is made long. Accordingly, the sealant is subjected to photo-curing before the liquid crystal comes in contact with the sealant. The region in which reduced is the speed of diffusion of the liquid crystal is formed using a material for forming a vertical orientation film, a silane coupling agent, a substance having a photocatalytic function, or the like. | 01-01-2009 |
20100134397 | LIQUID CRYSTAL DISPLAY DEVICE - To provide a liquid crystal display device suitable for a thin film transistor which uses an oxide semiconductor. In a liquid crystal display device which includes a thin film transistor including an oxide semiconductor layer, a film having a function of attenuating the intensity of transmitting visible light is used as an interlayer film which covers at least the oxide semiconductor layer. As the film having a function of attenuating the intensity of transmitting visible light, a coloring layer can be used and a light-transmitting chromatic color resin layer is preferably used. An interlayer film which includes a light-transmitting chromatic color resin layer and a light-blocking layer may be formed in order that the light-blocking layer is used as a film having a function of attenuating the intensity of transmitting visible light. | 06-03-2010 |
20100134710 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device is provided, which includes a thin film transistor including an oxide semiconductor layer, a first electrode layer, a second electrode layer having an opening, a light-transmitting chromatic-color resin layer between the thin film transistor and the second electrode layer, and a liquid crystal layer. One of the first electrode layer and the second electrode layer is a pixel electrode layer which is electrically connected to the thin film transistor, and the other of the first electrode layer and the second electrode layer is a common electrode layer. The light-transmitting chromatic-color resin layer is overlapped with the pixel electrode layer and the oxide semiconductor layer of the thin film transistor. | 06-03-2010 |
20100134739 | MANUFACTURING METHOD OF LIQUID CRYSTAL DISPLAY DEVICE - It is an object of the present invention to suppress light leakage in a dark state which is generated by rubbing treatment. A liquid crystal material containing an ultraviolet curable liquid crystalline monomer at a concentration of more than 0 wt % and not more than 1.0 wt % is used for a liquid crystal layer, and the liquid crystal layer is irradiated with ultraviolet rays. By applying such a liquid crystal layer to a liquid crystal display device, light leakage in a dark state can be suppressed, and the black display can be improved. Therefore, a liquid crystal display device with an excellent contrast and high display quality can be obtained. | 06-03-2010 |
20100134748 | LIQUID CRYSTAL DISPLAY DEVICE - The present invention easily provides a liquid crystal display in which conductivity between a first substrate over which a pixel electrode is formed and a second substrate over which a counter electrode is formed, can be certainly obtained even when it has a narrow frame, without adding new steps. As for a liquid crystal display device in which a liquid crystal is interposed between the first substrate over which the pixel electrode is formed and the second substrate over which the counter electrode is formed, when the first and second substrates are positioned so that the pixel electrode and the counter electrode are on the inside, and are attached to each other with a sealant, by providing a partition wall between the sealant and a conductive portion formed with a conductor to electrically connect the pixel electrode to the counter electrode, conductivity in a conductive portion can be certainly obtained. | 06-03-2010 |
20100165255 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - It is an object to provide a liquid crystal display device capable of displaying a moving image with high image quality by employing a time-division display system (also called a field-sequential system) with the use of a plurality of light-emitting diodes (hereinafter referred to as LEDs) as a backlight. Further, it is an object to provide a liquid crystal display device in which high image quality, full color display, or low power consumption is realized by adjustment of the peak luminance. After a liquid crystal layer is sealed between a pair of substrates, polymer stabilization treatment is performed with the use of UV irradiation from both above and below the pair of substrates at the same time, whereby the polymer included in the liquid crystal layer sandwiched between the pair of substrates is evenly distributed. Thus, a liquid crystal display device is manufactured. | 07-01-2010 |
20100165280 | LIQUID CRYSTAL DISPLAY DEVICE - It is an object to provide a liquid crystal display device using a liquid crystal material exhibiting a blue phase which enables higher contrast. In the liquid crystal display device including a liquid crystal layer exhibiting a blue phase, the liquid crystal layer exhibiting a blue phase is interposed between a pixel electrode layer having an opening pattern and a common electrode layer having an opening pattern (a slit). An electric field is applied between the pixel electrode layer and the common electrode layer which have opening patterns and are provided so that a liquid crystal is interposed therebetween, whereby an oblique (oblique to a substrate) electric field is applied to the liquid crystal. Thus, liquid crystal molecules can be controlled by the electric field. | 07-01-2010 |
20100195041 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - In a method for manufacturing a liquid crystal display device in which a liquid crystal layer is formed by dropping liquid crystal by a dropping method, a surface of a sealant which is formed over a first substrate is cured by a first cure treatment before dropping the liquid crystal, and then the liquid crystal is dropped. A second substrate has a plurality of projections in a sealant adhesive region. The first substrate and the second substrate are attached to each other with the liquid crystal interposed therebetween so that the plurality of projections is in contact with an uncured region in the sealant formed over the first substrate. | 08-05-2010 |
20100245712 | Liquid crystal DISPLAY DEVICE having a pair of electrodes over an inner side of a substrate of a liquid crystal element in which a stack of polarizers on the outer side of a substrate are provided and arranged between a pair of protective layers such that no protective layer is located between the stacked polarizers - To provide a display device having a high contrast ratio by a simple and easy method and to manufacture a high-performance display device at low cost, in a display device having a display element between a pair of light-transmitting substrates, layers each including a polarizer having different wavelength distribution of extinction coefficient from each other with respect to the absorption axes are stacked and provided on an outer side of the light-transmitting substrates. Further, a retardation plate may be provided between the stacked polarizers. | 09-30-2010 |
20110013117 | DISPLAY DEVICE - A display device with a higher contrast ratio is provided. The display device is provided with stacked polarizing plates arranged displaced from a parallel nicol state. Moreover, in the display device, at least one of a pair of stacked polarizing plates is displaced from a parallel state. The pair of stacked polarizing plates is arranged in a cross nicol state. A retardation plate may be provided between the polarizing plate and the substrate. As a result, the contrast ratio can be increased. | 01-20-2011 |
20110051034 | Display Device - To provide a display device having a high contrast ratio by a simple and easy method and to manufacture a high-performance display device at low cost, in a display device having a display element between a pair of light-transmitting substrates, layers each including a polarizer having different wavelength distribution of extinction coefficient from each other with respect to the absorption axes are stacked and provided on an outer side of the light-transmitting substrates. Further, a retardation plate may be provided between the stacked polarizers. | 03-03-2011 |
20110063545 | DISPLAY DEVICE - An object of the invention is to provide a display device having a high contrast ratio. Another object of the invention is to manufacture such a high-performance display device at low cost. In a display device having a display element between a pair of light-transmissive substrates, polarizer-including layers, which have different wavelength distributions of extinction coefficients, are stacked so that absorption axes are in a parallel nicol state, over each light-transmissive substrate. Absorption axes of one of a pair of stacks of polarizers and the other together which interpose the display element are deviated from a cross nicol state. A retardation plate may be provided between the stack of polarizing plates and the substrate. | 03-17-2011 |
20110205475 | Liquid Crystal Display Device - The present invention easily provides a liquid crystal display in which conductivity between a first substrate over which a pixel electrode is formed and a second substrate over which a counter electrode is formed, can be certainly obtained even when it has a narrow frame, without adding new steps. As for a liquid crystal display device in which a liquid crystal is interposed between the first substrate over which the pixel electrode is formed and the second substrate over which the counter electrode is formed, when the first and second substrates are positioned so that the pixel electrode and the counter electrode are on the inside, and are attached to each other with a sealant, by providing a partition wall between the sealant and a conductive portion formed with a conductor to electrically connect the pixel electrode to the counter electrode, conductivity in a conductive portion can be certainly obtained. | 08-25-2011 |
20120019756 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME - A liquid crystal dripping method has a problem in that an uncured sealant increases in width at the time of attaching a pair of substrates and thus a liquid crystal material enters the sealant and unevenness occurs in the inner periphery of the sealant. A region in which reduced is the speed of diffusion of liquid crystal at the time of attaching a pair of substrates is provided between a sealant and an orientation film. Further, time for diffusing the liquid crystal and coming in contact with the sealant is made long. Accordingly, the sealant is subjected to photo-curing before the liquid crystal comes in contact with the sealant. The region in which reduced is the speed of diffusion of the liquid crystal is formed using a material for forming a vertical orientation film, a silane coupling agent, a substance having a photocatalytic function, or the like. | 01-26-2012 |
20120228661 | SEMICONDUCTOR DEVICE - External light is reflected due to a difference in refractive indices of a black matrix and a glass substrate. When the black matrix is a black resin, there is a difference in refractive indices of the black resin and a first substrate. Also, there is a difference in refractive indices of the colored layer and the first substrate. Therefore, external light is slightly reflected. There is a problem in that the reflected light reduces contrast. A structure in which one polarizing element having dichroism is interposed between a pair of substrates is employed, and a light interference layer is provided between a color filter and a glass substrate, whereby a difference in refractive indices is moderated to reduce light reflection. | 09-13-2012 |
20120307188 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - In a method for manufacturing a liquid crystal display device in which a liquid crystal layer is formed by dropping liquid crystal by a dropping method, a surface of a sealant which is formed over a first substrate is cured by a first cure treatment before dropping the liquid crystal, and then the liquid crystal is dropped. A second substrate has a plurality of projections in a sealant adhesive region. The first substrate and the second substrate are attached to each other with the liquid crystal interposed therebetween so that the plurality of projections is in contact with an uncured region in the sealant formed over the first substrate. | 12-06-2012 |
20130027622 | DISPLAY DEVICE - An object of the present invention is to provide a display device having a high contrast ratio by a simple and easy method. Another object of the present invention is to manufacture such a display device having a high contrast ratio at low cost. The present invention relates to a display device including a first substrate; a second substrate; a layer including a display element, wherein the layer including the display element is interposed between the first substrate and the second substrate; and stacked polarizers on the outer side of the first substrate or the second substrate. The stacked polarizers are arranged to be in a parallel Nicols state and the wavelength distributions of the extinction coefficients of the stacked polarizers are different from each other. | 01-31-2013 |
20130176516 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device is provided, which includes a thin film transistor including an oxide semiconductor layer, a first electrode layer, a second electrode layer having an opening, a light-transmitting chromatic-color resin layer between the thin film transistor and the second electrode layer, and a liquid crystal layer. One of the first electrode layer and the second electrode layer is a pixel electrode layer which is electrically connected to the thin film transistor, and the other of the first electrode layer and the second electrode layer is a common electrode layer. The light-transmitting chromatic-color resin layer is overlapped with the pixel electrode layer and the oxide semiconductor layer of the thin film transistor. | 07-11-2013 |
20130242223 | LIQUID CRYSTAL DISPLAY DEVICE - To provide a liquid crystal display device suitable for a thin film transistor which uses an oxide semiconductor. In a liquid crystal display device which includes a thin film transistor including an oxide semiconductor layer, a film having a function of attenuating the intensity of transmitting visible light is used as an interlayer film which covers at least the oxide semiconductor layer. As the film having a function of attenuating the intensity of transmitting visible light, a coloring layer can be used and a light-transmitting chromatic color resin layer is preferably used. An interlayer film which includes a light-transmitting chromatic color resin layer and a light-blocking layer may be formed in order that the light-blocking layer is used as a film having a function of attenuating the intensity of transmitting visible light. | 09-19-2013 |
20140377893 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - It is an object to provide a liquid crystal display device capable of displaying a moving image with high image quality by employing a time-division display system (also called a field-sequential system) with the use of a plurality of light-emitting diodes (hereinafter referred to as LEDs) as a backlight. Further, it is an object to provide a liquid crystal display device in which high image quality, full color display, or low power consumption is realized by adjustment of the peak luminance. After a liquid crystal layer is sealed between a pair of substrates, polymer stabilization treatment is performed with the use of UV irradiation from both above and below the pair of substrates at the same time, whereby the polymer included in the liquid crystal layer sandwiched between the pair of substrates is evenly distributed. Thus, a liquid crystal display device is manufactured. | 12-25-2014 |