Patents by Inventor Hui-Lung Kuo
Hui-Lung Kuo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20060145600Abstract: An organic light emitting diode (OLED) with a brightness enhancer. The OLED comprises a substrate having a first surface and a second surface oppositely. An anode electrode is disposed on the first surface of the substrate. An organic light emitting layer is disposed on the anode electrode. A cathode electrode is disposed on the organic light emitting layer. A brightness enhancer is disposed on the second surface of the substrate.Type: ApplicationFiled: August 16, 2005Publication date: July 6, 2006Applicant: Industrial Technology Research InstituteInventors: Liang-Bin Yu, Tien-Shou Shieh, Hui-Lung Kuo, Mei-Rurng Tseng, Pin-Sien Yu
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Publication number: 20060147617Abstract: A color filter having a bi-layer metal grating is formed by nanoimprint lithography. Nanoimprint lithography, a low cost technology, includes two alternatives, i.e., hot-embossing nanoimprint lithography and UV-curable nanoimprint lithography. Manufacture steps comprises providing a substrate with a polymer material layer disposed thereon. A plurality of lands and grooves are formed in the polymer material layer, and a first metal layer and a second metal layer are disposed on the surfaces of the lands and grooves, respectively. Finally, a color filter having a bi-layer metal grating is obtained.Type: ApplicationFiled: July 8, 2005Publication date: July 6, 2006Inventors: Pin-Chen Chen, Hui-Lung Kuo, Chih-Ho Chiu, Liang-Bin Yu
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Publication number: 20060061725Abstract: A method for making an optical device comprises steps of: 1) Providing a substrate, a polymerizable liquid crystal material having a plurality of liquid crystal molecules, and a mold having rows of trenches; 2) Imprinting the polymerizable liquid crystal material on said substrate by the mold; 3) Proceeding a cross-linking process to cure the liquid crystal material so as to have long axes of the liquid crystal molecules be aligned along the rows of trenches. The optical device made from the present method conforms to an A-plate type retardation plate. Moreover, the optical device is capable of aligning liquid crystal molecules adjacent to it.Type: ApplicationFiled: February 17, 2005Publication date: March 23, 2006Inventors: Chih-Ho Chiu, Hui-Lung Kuo, Mei-Chih Peng, Yi-Chun Liu, Pin-Chen Chen
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Patent number: 7006293Abstract: A solution for fabricating a light diffusing sheet-like device capable of emitting light with superior brightness, that is a high brightness diffuser. The high brightness diffuser mainly includes at least two light diffusing pieces with ridge-shape structure arranged thereon, which can be either convex or concave. The convex ridge-shape structure having a plurality of large convex ridges and a plurality of small convex ridges, which are associated with a ridgeline existing in between two adjacent ridges where the large ridge and small are interlace-arranged, and the ridges along with the associated ridgelines can be longitudinally extended to the same direction. The concave ridge-shape structure is constituted the same way as the convex ridge-shape structure is, but having concave ridges. The high brightness diffuser is fabricated by stacking up the two light diffusing pieces and enabling an included angle to be formed between the two ridge-extending directions of the two light diffusing pieces.Type: GrantFiled: March 31, 2004Date of Patent: February 28, 2006Assignee: Industrial Technology Research InstituteInventors: Hui-Lung Kuo, Chun-Hsiang Wen, Ming-Lang Tsai, Yaw-Ting Wu, Yu-Hsun Wu, Chih-Kung Lee
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Publication number: 20060028600Abstract: The present invention discloses a high transmittance brightness enhancement element including a cholesteric liquid crystal film, a quarter-wave film, and preferably a polarizing film formed on a substrate. The cholesteric liquid crystal film and quarter-wave film are formed by coating, and the polarizing film may be formed by coating or adhering a pre-formed polarizing film to the quarter-wave film. The high transmittance brightness enhancement element with polarizing film can be integrated with backlight module to provide a brightness enhancement polarized light source for LCD.Type: ApplicationFiled: August 3, 2004Publication date: February 9, 2006Applicant: Industrial Technology Research InstituteInventors: Yu-Hsun Wu, Pao-Ju Hsieh, Hui-Lung Kuo
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Patent number: 6927911Abstract: The light-guide module for emitting particular polarized light beams includes a splitter for separating non-polarized light beams, a transformer for converting polarization of light beams, and a non-polarized light source. The non-polarized light source emits light beams. Particular polarized light beams pass the splitter and other light beams are reflected by the splitter. Polarizations of reflected light beams and of light beams emitted by the non-polarized light source are converted by the transformer so as to separate the light beams later. Thus the light-guide module for emitting particular polarized light beams loses relatively little light energy.Type: GrantFiled: June 9, 2003Date of Patent: August 9, 2005Assignee: Industrial Technology Research Institute/Material ResearchInventors: Ming-Lang Tsai, Chun-Hsiang Wen, Hui-Lung Kuo, Kuo-Tung Huang, Yaw-Ting Wu, Ying-Chiang Hu, Chih-Kng Lee, Liang-Bin Yu, Ping-Chen Chen, An-Shun Liu
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Publication number: 20050088739Abstract: A wire grid polarizer with double metal layers for the visible spectrum. Parallel dielectric layers having a period (p) of 10˜250 nm and a trench between adjacent dielectric layers overlie a transparent substrate. A first metal layer having a first thickness (d1) of 30˜150 nm is disposed in the trench. A second metal layer having a second thickness (d2) of 30˜150 nm and a width (w) overlies on the top surface of each dielectric layer. The first and second metal layers are separated by a vertical distance (l) of 10˜100 nm. The first thickness (d1) is the same as the second thickness (d2). A ratio of the width (w) to the period (p) is 25˜75%.Type: ApplicationFiled: April 8, 2004Publication date: April 28, 2005Inventors: Chih-Ho Chiu, Hui-Lung Kuo, Yi-Chun Liu, Pin-Chen Chen
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Patent number: 6879356Abstract: An optical device has an E-mode polarizer. The optical device has an E-mode polarizer, a ¼ wave phase retardation plate, and a cholesteric reflective polarizer. The E-mode polarizer is a linear dichroic polarizer and enables extraordinary light to pass. The ¼ wave phase retardation plate is sandwiched between the E-mode polarizer and the cholesteric reflective polarizer.Type: GrantFiled: January 6, 2003Date of Patent: April 12, 2005Assignee: Industrial Technology Research InstituteInventors: Pao-Ju Hsieh, Hui-Lung Kuo, Yuh-Shiun Wu
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Publication number: 20050046949Abstract: The present invention is to provide a solution for fabricating a light diffusing sheet-like device capable of emitting light with superior brightness, that is a high brightness diffuser. The high brightness diffuser mainly comprises at least two light diffusing pieces with ridge-shape structure arranged thereon, which can be either convex or concave. The convex ridge-shape structure is consisted of a plurality of large convex ridges and a plurality of small convex ridges, which are associated with a ridgeline existing in between two adjacent ridges where the large ridge and small ridge are interlace-arranged, and the ridges along with the associated ridgelines can be longitudinally extended to the same direction. Likewise, The concave ridge-shape structure is constituted the same way as the convex ridge-shape structure is, but is consisted of concave ridges.Type: ApplicationFiled: March 31, 2004Publication date: March 3, 2005Inventors: Hui-Lung Kuo, Chun-Hsiang Wen, Ming-Lang Tsai, Yaw-Ting Wu, Yu-Hsun Wu, Chih-Kung Lee
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Publication number: 20040130672Abstract: An optical device has an E-mode polarizer. The optical device has an E-mode polarizer, a ¼ wave phase retardation plate, and a cholesteric reflective polarizer. The E-mode polarizer is a linear dichroic polarizer and enables extraordinary light to pass. The ¼ wave phase retardation plate is sandwiched between the E-mode polarizer and the cholesteric reflective polarizer.Type: ApplicationFiled: January 6, 2003Publication date: July 8, 2004Inventors: Pao-Ju Hsieh, Hui-Lung Kuo, Yuh-Shiun Wu
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Patent number: 6721030Abstract: To form a brightness enhancement film of cholesteric liquid crystal, a photopolymerizable liquid crystal is first formed on a first substrate. A second substrate then is formed on the liquid crystal substance to form a sandwich structure. The sandwich structure is subsequently submitted to a lamination process that generates shear stress thereon. Finally, an energetic irradiation including UV irradiation is performed to solidify the layer of liquid crystal into a liquid crystal polymer film. The second substrate then is selectively removed. The above steps are repeated until a desired reflected wavelength range of the liquid crystal film is obtained.Type: GrantFiled: September 10, 2002Date of Patent: April 13, 2004Assignee: Industrial Technology Research InstituteInventors: Pao-Ju Hsieh, Hui-Lung Kuo, Ping-Yao Wu, Wen-Bing Chu
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Publication number: 20040051927Abstract: The light-guide module for emitting particular polarized light beams includes a splitter for separating non-polarized light beams, a transformer for converting polarization of light beams, and a non-polarized light source. The non-polarized light source emits light beams. Particular polarized light beams pass the splitter and other light beams are reflected by the splitter. Polarizations of reflected light beams and of light beams emitted by the non-polarized light source are converted by the transformer so as to separate the light beams later. Thus the light-guide module for emitting particular polarized light beams loses relatively little light energy.Type: ApplicationFiled: June 9, 2003Publication date: March 18, 2004Inventors: Ming-Lang Tsai, Chun-Hsiang Wen, Hui-Lung Kuo, Kuo-Tung Huang, Yaw-Ting Wu, Ying-Chiang Hu, Chih-Kng Lee, Liang-Bin Yu, Ping-Chen Chen, An-Shun Liu
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Patent number: 6669999Abstract: A method for making broadband cholesteric liquid crystals with improved bandwidth. The method includes the main steps of: (a) preparing a polymerization mixture containing first and second chiral liquid crystals, wherein the first chiral liquid crystal possesses a cholesteric liquid crystal phase and the second chiral liquid crystal possesses a helix-inversion characteristic, and at least one of the first or second chiral liquid crystals contains a polymerizable functional group; and (b) subjecting the polymerization mixture to a polymerization reaction, wherein the polymerization reaction is conducted such that the first chiral liquid crystal will go through a helix-inversion phenomenon. In a preferred embodiment, the second chiral liquid crystal has a temperature-dependent helicity which exhibits a helix inversion characteristic at a helix inversion temperature.Type: GrantFiled: May 30, 2001Date of Patent: December 30, 2003Assignee: Industrial Technology Research InstituteInventors: Pao-Ju Hsieh, Hui-Lung Kuo
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Publication number: 20030206259Abstract: To form a brightness enhancement film of cholesteric liquid crystal, a photopolymerizable liquid crystal is first formed on a first substrate. A second substrate then is formed on the liquid crystal substance to form a sandwich structure. The sandwich structure is subsequently submitted to a lamination process that generates shear stress thereon. Finally, an energetic irradiation including UV irradiation is performed to solidify the layer of liquid crystal into a liquid crystal polymer film. The second substrate then is selectively removed. The above steps are repeated until a desired reflected wavelength range of the liquid crystal film is obtained.Type: ApplicationFiled: September 10, 2002Publication date: November 6, 2003Applicant: Industrial Technology Research Inst.Inventors: Pao-Ju Hsieh, Hui-Lung Kuo, Ping-Yao Wu, Wen-Bing Chu
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Patent number: 6562420Abstract: The present invention provides a kind of liquid crystal aligning film composition used for liquid crystal display (LCD), in which the liquid crystal aligning film composition used for LCD is a polyimide resin oligomer (A) having the structural formula (I) as shown in the following: wherein m is an interger of 1, 2, and 3, R is selected one of from aromatic and cyclicaliphatic, X is selected from the group containing amide, ester, and ether etc., Y is the group of containing cholesterol structure; this polyimide resin oligomer (A) and the second reagent (B) are mixed together, through an induced process (C), to produce a thin film for aligning liquid crystal molecule.Type: GrantFiled: July 31, 2001Date of Patent: May 13, 2003Assignee: Industrial Technology Research InstituteInventors: Yi-Chun Liu, Hui-Lung Kuo, Chein-Dhau Lee, Jing-Pin Pan
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Patent number: 6562422Abstract: The invention provides a polymer for optical compensatory films for display panels. The repeating unit of the polymer contains the derivitives of 2,2-Bis-(4-aminophenyl)adamantane). The structure of the monomer is not polar and it is able to straighten and harden the structure of the polymerized high molecular polymers and it exhibits excellent transmittance. The polymer is obtained by introducing 2,2-Bis-(4-aminophenyl)adamantane) in a high molecular chain.Type: GrantFiled: November 20, 2000Date of Patent: May 13, 2003Assignee: Industrial Technology Research InstituteInventors: Shinn Ted Hong, Hui Lung Kuo, Chein Dhau Lee
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Publication number: 20030036624Abstract: The present invention provides a kind of liquid crystal aligning film composition used for liquid crystal display (LCD), in which the liquid crystal aligning film composition used for LCD is a polyimide resin oligomer (A) having the structural formula (I) as shown in the following: wherein m is an interger of 1, 2, and 3, R is selected one of from aromatic and cyclicaliphatic, X is selected from the group containing amide, ester, and ether etc., Y is the group of containing cholesterol structure; this polyimide resin oligomer (A) and the second reagent (B) are mixed together, through an induced process (C), to produce a thin film for aligning liquid crystal molecule.Type: ApplicationFiled: July 31, 2001Publication date: February 20, 2003Applicant: Industrial Technology research Institute, TaiwanInventors: Yi-Chun Liu, Hui-Lung Kuo, Chein-Dhau Lee, Jing-Pin Pan
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Publication number: 20020180912Abstract: A method for making broadband cholesteric liquid crystals with improved bandwidth. The method includes the main steps of: (a) preparing a polymerization mixture containing first and second chiral liquid crystals, wherein the first chiral liquid crystal possesses a cholesteric liquid crystal phase and the second chiral liquid crystal possesses a helix-inversion characteristic, and at least one of the first or second chiral liquid crystals contains a polymerizable functional group; and (b) subjecting the polymerization mixture to a polymerization reaction, wherein the polymerization reaction is conducted such that the first chiral liquid crystal will go through a helix-inversion phenomenon. In a preferred embodiment, the second chiral liquid crystal has a temperature-dependent helicity which exhibits a helix inversion characteristic at a helix inversion temperature.Type: ApplicationFiled: May 30, 2001Publication date: December 5, 2002Inventors: Pao-Ju Hsieh, Hui-Lung Kuo
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Patent number: 6351334Abstract: A reflective-type diffraction grating structure for use in color display devices such as liquid crystal displays (LCDs). It contains: (1) a plurality of micro-lenses each having a smooth top surface and a blazed zig-zag-shaped grating surface at the bottom; (2) an optical coating formed below the zig-zag-shaped grating surface; and (3) a reflective member formed below the optical coating. With the cooperative actions of the zig-zag-shaped grating surface, the optical coating layer, and the reflective member, an incident light, when reflected, is separated into repeated sequences of red, green, and blue color components and a black matrix segregating the red, green, and blue color components. A sequence of micro-light valves are placed in the path of the reflected incident light to block the undesired color components. The reflective-type diffraction grating structure dispenses with the need for the various layers of color filters.Type: GrantFiled: October 10, 2000Date of Patent: February 26, 2002Assignee: Industrial Technology Research InstituteInventors: Pao-Ju Hsieh, Hui-Lung Kuo, Chih-Kung Lee, Wen-Jong Chen
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Patent number: 6265520Abstract: Disclosed is a solvent soluble polyimide and a method for making thereof, which characterizes by producing a solvent soluble polyimide with low electric conductivity through the polymerization of an anhydride and a diamine under the condition with or without catalyst.Type: GrantFiled: November 29, 1999Date of Patent: July 24, 2001Assignee: Industrial Technology Research InstituteInventors: Hui-Lung Kuo, Chein-Dhau Lee, Yi-Chun Liu, Shih-Chi Yang