Patent application number | Description | Published |
20090009692 | Liquid Crystal Display Device - The present invention provides a liquid crystal display device which can enhance the brightness of a backlight of a liquid crystal display panel in such a manner that a luminous flux quantity of a cold cathode fluorescent lamp is increased. It is also an object of the present invention to provide a manufacturing method of such a liquid crystal display device. A cold cathode fluorescent lamp applied for a backlight mounted on a back surface of a liquid crystal display panel of a liquid crystal display device includes a light-transmitting glass tube in which a rare gas and mercury are sealed, a pair of cold cathodes which is respectively sealed and arranged in both end portions of the glass tube such that the cold cathodes face each other in an opposed manner, an electricity supply line which has one end thereof connected to the cold cathodes and another end thereof led out to the outside of the glass tube in a hermetically sealed manner, and a phosphor film which is formed on an inner peripheral surface of the glass tube, and the phosphor film is formed such that a phosphor suspension is formed by mixing phosphors into a suspension produced by strongly stirring a mixed solvent made of butyl acetate and nitrocellulose and by re-stirring the mixture, and the phosphor suspension is applied to the inner peripheral surface of the glass tube by suction. | 01-08-2009 |
20090135340 | Liquid Crystal Display Device - To provide a liquid crystal display device that includes a cold cathode fluorescent lamp that controls a drop in the luminous efficacy of a fluorescent substance layer in a large electrical current region. Uneven portions UNE are formed in a surface of a fluorescent substance film FLU that is formed on an inner wall surface of a glass tube VAL that configures a cold cathode fluorescent lamp CCFL, whereby the surface area of the film surface can be increased and a drop in the fluorescent substance luminous efficacy in a large current region can be controlled, so the effect of improving the luminance of a display screen over a long period of time is obtained as a backlight of a liquid crystal display panel LCD. | 05-28-2009 |
20110096277 | 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 disposed between the pair of substrates; an electrode group formed on at least one substrate of the pair of substrates, for applying an electric field to the liquid crystal layer; a plurality of active elements connected to the electrode group; and a liquid crystal alignment film disposed on at least one substrate of the pair of substrates, in which the liquid crystal alignment film, which is formed by a photo-alignment process, contains polyimide formed using tetracarboxylic acid dianhydride and/or diamine each having a specific chemical structure. | 04-28-2011 |
20110115999 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - Disclosed is a manufacturing method of a liquid crystal display device which is a manufacturing method of a liquid crystal display device including a liquid crystal alignment film to which an alignment regulating force is imparted by a photo-alignment treatment, including: a film forming step of forming a film containing a polymer whose main chain is cleaved by irradiation with light; a photo-alignment step of imparting an alignment regulating force to the film formed in the film forming step by irradiation of the film with light in an atmosphere of a temperature lower than 100° C.; and a removing step of removing a low-molecular weight component generated by cleaving the main chain of the polymer through the light irradiation after the light irradiation. Also disclosed is a liquid crystal display device manufactured by the manufacturing method. | 05-19-2011 |
20110116027 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - A liquid crystal display device where both improvement in light transmittance of a liquid crystal display panel having a photo alignment film and suppression of occurrence of after image can be achieved. The liquid crystal display device has a liquid crystal display panel including pixels each having an active device, a pixel electrode, a common electrode and a liquid crystal layer arranged in a dot matrix array. The liquid crystal display panel has a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate has the active device, the pixel electrode, the common electrode and a first alignment film. The second substrate has a second alignment film. The first alignment film and the second alignment film are respectively a photo alignment film formed by irradiating a photo decomposition type insulating film with light. The second alignment film is thinner than the first alignment film, and has a thickness of equal to or greater than 10 nm and equal to or less than 50 nm. | 05-19-2011 |
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 |
20110273649 | LIQUID CRYSTAL DISPLAY DEVICE - Each pixel formed on a TFT substrate includes a pixel electrode, and a TFT, a color filter, an opposed electrode and an insulating film are interposed between the pixel electrode and the TFT substrate. A liquid crystal layer is interposed between the TFT substrate and an opposed substrate. An alignment film is provided on each surface of the TFT substrate and the opposed substrate, the each surface being in contact with the liquid crystal layer. A material with high photoconductivity is used for forming the alignment film so as to suppress DC afterimage. Meanwhile, each thickness of the color filter for the respective colors is changed for preventing a yellow shift resulting from absorption of high intensity of light with short wavelength by the alignment film. | 11-10-2011 |
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 |
20120058702 | MANUFACTURING METHOD OF DISPLAY DEVICE - The present invention relates to a method of manufacturing a liquid crystal display device having a TFT substrate and a counter substrate, and prevents brightness unevenness from being caused by orientation film thickness unevenness. | 03-08-2012 |
20120081647 | Liquid Crystal Display Device And Manufacturing Method Thereof - A liquid crystal display device has a liquid crystal display panel including pixels each having an active device, a pixel electrode, a common electrode and a liquid crystal layer arranged in a dot matrix array. The liquid crystal display panel has a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate has the active device, the pixel electrode, the common electrode and a first alignment film. The second substrate has a second alignment film. The first alignment film and the second alignment film are respectively a photo alignment film formed by irradiating a photo decomposition type insulating film with light. The second alignment film has a thickness of at least 10 nm and no greater 50 nm and is thinner than the first alignment film. | 04-05-2012 |
20120224131 | Liquid Crystal Display Device - In the step of curing a resin for bonding a TFT substrate and a counter substrate each having an alignment film that has been optically aligned by using UV-light, damage to the alignment film due to the UV-light can be prevented without using a light shielding mask. | 09-06-2012 |
20130095720 | Manufacturing Method of Display Device - A method of manufacturing an organic EL display device that includes an element substrate on which a first organic luminescent material and a second organic luminescent material are formed, includes forming the first organic luminescent material by dripping the first organic luminescent material from an inkjet nozzle on the element substrate while relatively moving the inkjet nozzle and the element substrate in a first direction, and forming the second organic luminescent material by dripping the second organic luminescent material from an inkjet nozzle on the element substrate while relatively moving the inkjet nozzle and the element substrate in a direction perpendicular to the first direction. | 04-18-2013 |
20130114031 | Liquid Crystal Display Device and Manufacturing Method Thereof - A liquid crystal display device has a liquid crystal display panel including pixels each having an active device, a pixel electrode, a common electrode and a liquid crystal layer arranged in a dot matrix array. The liquid crystal display panel has a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate has the active device, the pixel electrode, the common electrode and a first alignment film. The second substrate has a second alignment film. The first alignment film and the second alignment film are respectively a photo alignment film formed by irradiating a photo decomposition type insulating film with light. The second alignment film has a thickness of at least 10 nm and no greater 50 nm and is thinner than the first alignment film. | 05-09-2013 |
20130286333 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - A liquid crystal display device has a liquid crystal display panel including pixels each having an active device, a pixel electrode, a common electrode and a liquid crystal layer arranged in a dot matrix array. The liquid crystal display panel has a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate has the active device, the pixel electrode, the common electrode and a first alignment film. The second substrate has a second alignment film. The first alignment film and the second alignment film are respectively a photo alignment film formed by irradiating a photo decomposition type insulating film with light. The second alignment film has a thickness of at least 10 nm and no greater 50 nm and is thinner than the first alignment film. | 10-31-2013 |
20140043551 | LIQUID CRYSTAL DISPLAY DEVICE - In the step of curing a resin for bonding a TFT substrate and a counter substrate each having an alignment film that has been optically aligned by using UV-light, damage to the alignment film due to the UV-light can be prevented without using a light shielding mask. A UV-light absorption layer is formed between each black matrix on the counter substrate. The TFT and counter substrates are sealed at their periphery by a resin that is cured by UV-light radiated from the counter substrate side. Since the absorption layer has a high absorbability to UV-light at a wavelength of 300 nm or less that degrades the alignment film, damage to the alignment film due to the UV-light for curing the resin can be prevented. Thus, provision of a light shielding mask for shielding the UV-light for the display region can be saved. | 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 |
20140220848 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - Disclosed is a manufacturing method of a liquid crystal display device which is a manufacturing method of a liquid crystal display device including a liquid crystal alignment film to which an alignment regulating force is imparted by a photo-alignment treatment, including: a film forming step of forming a film containing a polymer whose main chain is cleaved by irradiation with light; a photo-alignment step of imparting an alignment regulating force to the film formed in the film forming step by irradiation of the film with light in an atmosphere of a temperature lower than 100° C.; and a removing step of removing a low-molecular weight component generated by cleaving the main chain of the polymer through the light irradiation after the light irradiation. Also disclosed is a liquid crystal display device manufactured by the manufacturing method. | 08-07-2014 |
20150049271 | 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 disposed between the pair of substrates; an electrode group formed on at least one substrate of the pair of substrates, for applying an electric field to the liquid crystal layer; a plurality of active elements connected to the electrode group; and a liquid crystal alignment film disposed on at least one substrate of the pair of substrates, in which the liquid crystal alignment film, which is formed by a photo-alignment process, contains polyimide formed using tetracarboxylic acid dianhydride and/or diamine each having a specific chemical structure. | 02-19-2015 |
20150070636 | LIQUID CRYSTAL DISPLAY DEVICE - In the step of curing a resin for bonding a TFT substrate and a counter substrate each having an alignment film that has been optically aligned by using UV-light, damage to the alignment film due to the UV-light can be prevented without using a light shielding mask. A UV-light absorption layer is formed between each black matrix on the counter substrate. The TFT and counter substrates are sealed at their periphery by a resin that is cured by UV-light radiated from the counter substrate side. Since the absorption layer has a high absorbability to UV-light at a wavelength of 300 nm or less that degrades the alignment film, damage to the alignment film due to the UV-light for curing the resin seal material can be prevented. Thus, provision of a light shielding mask for shielding the UV-light for the display region can be saved. | 03-12-2015 |