Patent application number | Description | Published |
20100048861 | POLYIMIDE RESIN AND LIQUID CRYSTAL ALIGNMENT LAYER AND POLYIMIDE FILM USING THE SAME - Disclosed is a polyimide resin, which is colorless and transparent and has superior properties, including mechanical properties and heat stability, and thus is usable in various fields, including semiconductor insulating films, TFT-LCD insulating films, transparent electrode films, passivation films, liquid crystal alignment layers, optical communication materials, protective films for solar cells, and flexible display substrates. Also, a liquid crystal alignment layer and a polyimide film using the polyimide resin are provided. | 02-25-2010 |
20100255221 | POLYIMIDE FILM - Disclosed is a polyimide film, which is colorless and transparent, with superior mechanical properties and high thermal stability. | 10-07-2010 |
20100279131 | POLYIMIDE FILM WITH IMPROVED THERMAL STABILITY - Disclosed is a polyimide film having superior thermal stability, in which the degree of change depending on variation in temperature is minimized. | 11-04-2010 |
20100317821 | POLYIMIDE RESIN AND LIQUID CRYSTAL ALIGNMENT LAYER AND POLYIMIDE FILM USING THE SAME - Disclosed is a polyimide resin, which is colorless and transparent and has superior properties, including mechanical properties and heat stability, and thus is usable in various fields, including semiconductor insulating films, TFT-LCD insulating films, transparent electrode films, passivation films, liquid crystal alignment layers, optical communication materials, protective films for solar cells, and flexible display substrates. Also, a liquid crystal alignment layer and a polyimide film using the polyimide resin are provided. | 12-16-2010 |
20110082276 | TRANSPARENT POLYIMIDE FILM HAVING IMPROVED SOLVENT RESISTANCE - Disclosed herein is a transparent polyimide film having improved solvent resistance, the outer form of which is not changed by swelling or dissolving even when it is immersed in a polar solvent. | 04-07-2011 |
20110143132 | PLASTIC SUBSTRATE AND DEVICE INCLUDING THE SAME - Disclosed is a plastic substrate, which includes a plastic film, a reflective and/or conductive metal layer, and a resin layer having a conductive material dispersed therein and which is useful as a lower substrate of a transmissive electronic paper display device or a display device. | 06-16-2011 |
20110171445 | TRANSPARENT ELECTRODE - Disclosed herein is a transparent electrode, including: a polyimide film having an average linear thermal expansion coefficient of 50.0 ppm/° C. or less, which is measured by thermo-mechanical analysis based on a film thickness of 50˜100 μm at a temperature of 50˜250° C., and a yellowness of 15 or less; and an electrode layer including a conductive material and a polyimide resin having an average linear thermal expansion coefficient of 50.0 ppm/° C. or less, which is measured by thermo-mechanical analysis based on a film thickness of 50˜100 μm at a temperature of 50˜250° C., and a yellowness of 15 or less. The transparent electrode is advantageous in that a problem of a short circuit does not occur even when apparatuses including this transparent electrode are over-heated because it has excellent heat resistance, and in that it is transparent and has high electroconductivity. | 07-14-2011 |
20110178266 | POLYIMIDE FILM - Disclosed is a polyimide film, which is very transparent and very resistant to heat and thus undergoes little dimensional change under thermal stress, and is suitable for use in transparent conductive films, TFT substrates, flexible printed circuit boards and so on. | 07-21-2011 |
20110245455 | POLYIMIDE FILM - The present invention provides a polyimide film having a good transparency and also an excellent thermal resistance so that it is useful in a transparent conductive film, TFT substrate, a flexible printing circuit substrate, and the like. | 10-06-2011 |
20110311796 | POLYIMIDE FILM - Disclosed is a polyimide film, which is colorless and transparent, and which prevents the distortion of an image and exhibits excellent color reproducibility. | 12-22-2011 |
20120041156 | POLYIMIDE FILM - The present invention provides a polyimide film which is both outstandingly transparent and highly heat resistance, and which can be usefully employed as a transparent electrically conductive film, a TFT substrate, a flexible printed circuit substrate, and the like. | 02-16-2012 |
20130274394 | TRANSPARENT POLYIMIDE FILM AND PREPARATION METHOD THEREOF - The present invention relates to a transparent polyimide film with improved tensile strength and a preparation method thereof, and more specifically to a colorless, transparent polyimide film having excellent optical properties and improved tear strength at the same time through the use of a monomer containing a functional group or an improver for improving tensile strength, and a preparation method thereof, wherein the functional group is selected from the group consisting of a hexafluoro group, a sulfone group, and an oxy group. | 10-17-2013 |
20130292873 | METHOD FOR PREPARING POLYIMIDE FILM - The present invention relates to a method for preparing a polyimide film through a roll-to-roll method, and more specifically to a method for preparing a polyimide film with excellent optically isotropic properties through an annealing process during the manufacture of the polyimide film. | 11-07-2013 |
20140243482 | POLYAMIDE-IMIDE COPOLYMER FILM AND METHOD OF PREPARING POLYAMIDE-IMIDE COPOLYMER - Disclosed herein is a polyamide-imide copolymer film, comprising a copolymer resin in which a unit structure derived from TFDB (2,2′-bistrifluoromethyl-4,4′-biphenyl diamine), a unit structure derived from 6FDA (4,4′-(hexa-fluoroisopropylidene)diphthalic anhydride), a unit structure derived from BPDA (3,3′,4,4′-biphenyltetracarboxylic dianhydride) and a unit structure derived from TPC (terephthaloyl chloride or 1,4-benzenedicarbonyl chloride) are copolymerized, wherein the copolymer resin has a weight average molecular weight of 10,000˜400,000. | 08-28-2014 |
20140336352 | POLYIMIDE FILM - The present invention provides a polyimide film which is both outstandingly transparent and highly heat resistance, and which can be usefully employed as a transparent electrically conductive film, a TFT substrate, a flexible printed circuit substrate, and the like. | 11-13-2014 |
20140338959 | PLASTIC SUBSTRATE - The present invention provides a plastic substrate, including: a polyimide film; a hard coating layer formed on one side of the polyimide film; and a transparent electrode layer formed on the other side of the polyimide film. The plastic substrate has excellent light transmittance high hardness characteristics, superior ITO proccessability and flexibility. Further, the plastic substrate can function as both a window film and an electrode film when it is applied to a touch screen panel. Thus, the present invention provides a touch screen panel which can be slimmed by reducing the number of laminated films including the plastic substrate. | 11-20-2014 |
20140367151 | TRANSPARENT ELECTRODE - Disclosed herein is a transparent electrode, including: a colorless transparent polyimide film substrate; and a conductive layer formed on the substrate and including a conductive material containing carbon nanotubes, wherein the conductive layer includes a polymer binder. The transparent electrode is advantageous in that carbon nanotubes strongly adhere to a plastic substrate and the transparent electrode exhibits environmental stability. | 12-18-2014 |
20150152232 | POLYIMIDE AND POLYIMIDE FILM COMPRISING THE SAME - This invention relates to polyimide, which includes amorphous silica particles having OH groups thereon and is thus highly heat-resistant, colorless and transparent, and to a polyimide film manufactured using the polyimide. | 06-04-2015 |
20150284512 | POLYAMIC ACID SOLUTION, IMIDIZATION FILM, AND DISPLAY DEVICE - The present invention relates to a polyamic acid solution, an imidization film, and a display device, and discloses a polyamic acid solution which is a reaction product of dianhydrides and aromatic diamines and has a thermal expansion coefficient of 10 ppm/° C. or less in a temperature range of 50 to 540° C., after forming an imidization film, an imidization film thereof, and a display device including the same. The present invention may provide a display having excellent thermal stability, proper flexibility, and mechanical strength by applying the polyamic acid solution. | 10-08-2015 |
20150299392 | POLYAMIDE-IMIDE COPOLYMER FILM AND METHOD OF PREPARING POLYAMIDE-IMIDE COPOLYMER - Disclosed herein is a polyamide-imide copolymer film, comprising a copolymer resin in which a unit structure derived from TFDB (2,2′-bis-trifluoromethyl-4,4′-biphenyl diamine), a unit structure derived from 6FDA (4,4′-(hexa-fluoroisopropylidene)diphthalic anhydride) and a unit structure derived from TPC (Terephthaloyl chloride; 1,4-benzenedicarbonyl chloride) are copolymerized. | 10-22-2015 |
20150322223 | TRANSPARENT POLYIMIDE SUBSTRATE AND METHOD FOR FABRICATING THE SAME - The present invention provides a transparent polyimide substrate comprising a transparent polyimide film and a cured layer of a polyisocyanate formed on at least one surface of the transparent polyimide film, the polyisocyanate containing an acrylate group and having 2 to 5 isocyanate groups per molecule. The transparent polyimide substrate has excellent scratch resistance, solvent resistance, optical properties and flexibility and low water permeability and is useful as a cover substrate for a flexible electronic device. | 11-12-2015 |
20160096952 | POLYIMIDE RESIN AND POLYIMIDE FILM PRODUCED THEREFROM - Disclosed herein is a polyimide resin including a silica filler surface-treated with a fluorine-containing compound, and a polyimide film formed using the polyimide resin. The polyimide resin has improved dispersibility and heat resistance because the surface of a silica filler is fluorinated. | 04-07-2016 |
Patent application number | Description | Published |
20080288743 | APPARATUS AND METHOD OF MANAGING MAPPING TABLE OF NON-VOLATILE MEMORY - An apparatus and method for managing a mapping table of a non-volatile memory are provided. The apparatus includes a non-volatile memory having memory cells, each of which stores data bits in a plurality of pages included in a block according to a plurality of states, each of which has at least two bits, an operating time measuring unit measuring a write operation time on each of the plurality of pages included in the block, and a mapping table generating unit dividing the pages into a plurality of groups according to the measured write operation time and generating a mapping table by using the divided groups. | 11-20-2008 |
20080301389 | MEMORY-PROTECTION METHOD AND APPARATUS - A memory-protection method and apparatus is provided that can protect a memory that is used by components in a real time operating system environment (RTOS). The memory-protection method includes requesting access to a first memory region that a first component uses when the first component is called to execute a first task in a real time operating system, and permitting the first task to access the first memory region with reference to a task list that includes information on tasks which are permitted to access the first memory region. | 12-04-2008 |
20080301393 | APPARATUS AND METHOD OF PROCESSING DATA OF NON-VOLATILE MEMORY - The invention relates to an apparatus and method of processing data of a non-volatile memory, and more particularly, to an apparatus and method of processing data of a non-volatile memory that is capable of applying a writing unit operation to a plurality of sectors. | 12-04-2008 |
20090055578 | APPARATUS USING FLASH MEMORY AS STORAGE AND METHOD OF OPERATING THE SAME - An apparatus usable with a flash memory as storage and a method of operating the same are provided, which can provide an optimized architecture to a flash memory through combination of a flash transition layer (FTL) with a database. The apparatus includes a flash memory, a device driver to manage a mapping table between logical addresses and physical addresses in accordance with a data operation in the flash memory, and a control unit to perform data recovery of the flash memory by requesting the mapping table through an interface provided by the device driver. | 02-26-2009 |
20090287792 | METHOD OF PROVIDING SERVICE RELATING TO CONTENT STORED IN PORTABLE STORAGE DEVICE AND APPARATUS THEREFOR - Provided are a method of providing a service relating to content stored in a portable storage device to an external device, and an apparatus therefor. The method includes outputting a user interface to manage information relating to contents stored in the portable storage device through a display unit associated with the external device, receiving a command to select content from among the contents through the output user interface, executing a service corresponding to the content selected based on the command, and providing a result of executing the service to the external device. | 11-19-2009 |
20100161890 | CACHE MANAGEMENT METHOD AND CACHE DEVICE USING SECTOR SET - A cache management method and a cache device using a sector sets, are provided. The cache management method includes receiving at least one of a write request and a read request for predetermined data, from a host device. The cache determines whether a cache memory is allocated to a sector set including the predetermined sector, and selectively allocates the cache memory to the sector set based on the result of determination. The cache may store the data in the cache memory allocated to the sector set. | 06-24-2010 |
20150084038 | INTENSIFIED SENSOR ARRAY FOR STATIC ELECTRICITY - Provided is a intensified sensor array for static electricity having a structure in which a static electricity preventing wiring covers an upper surface of a pixel circuit to cut off static electricity, so when static electricity of a high voltage is momentarily generated, the static electricity induced through the static electricity preventing wiring is discharged, thereby being capable of effectively protecting the pixel circuit of a lower part from the static electricity. | 03-26-2015 |