Patents by Inventor Kuo-Tung Tiao
Kuo-Tung Tiao 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: 20100309682Abstract: A brightness enhancement film (BEF) includes a light transmissive substrate having a first surface and a second surface, a plurality of lenses disposed on the first surface, and a reflective layer. Each of the lenses has a curved protruding surface facing away from the light transmissive substrate. The radius of curvature of the curved protruding surface in a first direction parallel to the first surface is R1, the radius in a second direction is R2, and R1?R2. The reflective layer is disposed on the second surface and has a plurality of light pass openings respectively located on the optical axes of the lenses. The distance between the apex of the curved protruding surface and the corresponding light pass opening is L, the refractive index of the lenses is n, and the BEF satisfies L<nR1/(n?1) and L<nR2/(n?1). A backing light module using the BEF is provided.Type: ApplicationFiled: May 19, 2010Publication date: December 9, 2010Applicant: Coretronic CorporationInventors: Tzeng-Ke Shiau, Ching-Shiang Li, Wen-Chih Huang, Fu-Ming Chuang, Kuo-Tung Tiao
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Publication number: 20100302800Abstract: A light guide plate adapted to a backlight module is provided. The backlight module has a plurality of point light sources providing a light beam of a predetermined wavelength. The light guide plate includes a light emitting surface, a bottom opposite to the light emitting surface, a light incident surface connecting the light emitting surface and the bottom, a plurality of grating structures, and a plurality of diffusion dots. The light incident surface is near the point light sources. The diffusion dots are disposed on the bottom. At least portions of the grating structures are disposed on the light incident surface. Each of the grating structures has a plurality of concave parts and a plurality of protruding parts. Each of the concave parts is disposed between two neighboring protruding parts. A ratio of the predetermined wavelength to a pitch between two neighboring protruding parts is ranged between 1.2 to 1.3.Type: ApplicationFiled: April 29, 2010Publication date: December 2, 2010Applicant: CORETRONIC CORPORATIONInventors: Lei-Ming YANG, Tun-Chien TENG, Kuo-Tung TIAO
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Publication number: 20100277949Abstract: A light guide plate adapted to guide a beam emitted from at least one light emitting device and including a light transmissive substrate and a plurality of optical structures is provided. The light transmissive substrate has a light emitting surface, a bottom surface opposite to the light emitting surface, and a light incident surface connecting the light emitting surface and the bottom surface. The beam from the light emitting device enters the light transmissive substrate through the light incident surface and is emitted out. The optical structures are disposed on the bottom surface and each of the optical structures has a first total internal reflection (TIR) surface and a second TIR surface. A part of the beam from the light incident surface is totally internally reflected by the first TIR surface and the second TIR surface in sequence. A backlight module using the light guide plate is also provided.Type: ApplicationFiled: December 17, 2009Publication date: November 4, 2010Applicant: Coretronic CorporationInventors: Chao-Hung Weng, Jyh-Ming Chen, Kuo-Tung Tiao
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Patent number: 7440689Abstract: An electromagnetically actuated adjusting apparatus for lens is disclosed. The adjusting apparatus comprises a body capable of furnishing a lens inside, at least one permanent magnet, a first magnetic conductor and a second magnetic conductor. The first and the second magnetic conductors are respectively wound with a plurality of coils. The permanent magnet is adjoined to the body and has a first polarity and a second polarity opposing each other. The first magnetic conductor has at least a first extension member provided opposite to the first polarity. The second magnetic conductor has at least a second extension member provided opposite to the second polarity. The first extension member and the second extension member can better converge magnetic flux lines emanating from the coils when charged to the positions nearing the two polarities of the permanent magnet so high-efficiency focusing and zooming of lens can be achieved.Type: GrantFiled: June 29, 2005Date of Patent: October 21, 2008Assignee: Aiptek International Inc.Inventors: Kuo Tung Tiao, Shih Yuan Chang, Ming Jen Tsai
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Patent number: 7122405Abstract: A chip package assembly is produced by preparing a transparent substrate in advance, a chip is electrically connected to a circuit layout of the transparent substrate. Make sure an unoccupied layer is sealed between the transparent substrate and the chip, so as to form the chip package assembly. After the processes mentioned above are done, the chip package assembly can leave the clean room to run post-processes, such as die sawing, or camera module packaging.Type: GrantFiled: November 24, 2004Date of Patent: October 17, 2006Assignee: Aiptek International, Inc.Inventor: Kuo-Tung Tiao
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Publication number: 20060055016Abstract: A chip package assembly is rather than a conventional package assembly and can improve the ability of packaging a photoelectric chip in order to save materials and costs. The chip package assembly includes a transparent substrate, a chip is electrically connected to a circuit layout of the transparent substrate, a joint pad arranged therebetween. Make sure an unoccupied layer is sealed up between the transparent substrate and the chip, so as to form the chip package assembly. After the processes mentioned above are done, the chip package assembly can leave the clean room to run post-processes, such as die sawing, or camera module packaging.Type: ApplicationFiled: November 24, 2004Publication date: March 16, 2006Inventor: Kuo-Tung Tiao
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Publication number: 20060057770Abstract: A method for packaging a chip is rather than a conventional package technology and can improve the ability of packaging a photoelectric chip in order to save materials and costs. A chip package assembly is produced by preparing a transparent substrate in advance, a chip is electrically connected to a circuit layout of the transparent substrate. Make sure an unoccupied layer is sealed between the transparent substrate and the chip, so as to form the chip package assembly. After the processes mentioned above are done, the chip package assembly can leave the clean room to run post-processes, such as die sawing, or camera module packaging.Type: ApplicationFiled: November 24, 2004Publication date: March 16, 2006Inventor: Kuo-Tung Tiao
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Patent number: 6582082Abstract: In an optical engine for a projection system, a fan unit is mounted on an upper surface of a housing, and has an inlet port facing toward light modulators within the housing for drawing air upwardly so as to dissipate heat generated by the light modulators, and an outlet port that is transverse to the inlet port for discharging the air drawn into the inlet port.Type: GrantFiled: November 13, 2001Date of Patent: June 24, 2003Assignee: Prokia Technology Co., LtdInventors: Kuo-Tung Tiao, Cheng Wang
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Publication number: 20030090634Abstract: In an optical engine for a projection system, a fan unit is mounted on an upper surface of a housing, and has an inlet port facing toward light modulators within the housing for drawing air upwardly so as to dissipate heat generated by the light modulators, and an outlet port that is transverse to the inlet port for discharging the air drawn into the inlet port.Type: ApplicationFiled: November 13, 2001Publication date: May 15, 2003Applicant: Prokia Technology Co., Ltd.Inventors: Kuo-Tung Tiao, Cheng Wang
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Patent number: 6547422Abstract: An illuminating module includes a first reflector having a curved first reflector surface, a reflector opening and a first focal point, and a light source disposed in the first reflector at the first focal point. A second reflector is mounted on a surrounding edge of the first reflector to configure the opening with shielded and unshielded portions, and has a second reflector surface facing the first reflector surface. A portion of the light rays from the light source which radiates toward the first reflector and which is reflected thereby toward the shielded portion is reflected by the second reflector surface back to the light source so as to be able to combine with the light rays that are reflected by the first reflector for passage through the unshielded portion.Type: GrantFiled: August 8, 2001Date of Patent: April 15, 2003Assignee: Prokia Technology Co., Ltd.Inventors: Kuo-Tung Tiao, Fu-Ming Chuang
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Publication number: 20030031031Abstract: An illuminating module includes a first reflector having a curved first reflector surface, a reflector opening and a first focal point, and a light source disposed in the first reflector at the first focal point. A second reflector is mounted on a surrounding edge of the first reflector to configure the opening with shielded and unshielded portions, and has a second reflector surface facing the first reflector surface. A portion of the light rays from the light source which radiates toward the first reflector and which is reflected thereby toward the shielded portion is reflected by the second reflector surface back to the light source so as to be able to combine with the light rays that are reflected by the first reflector for passage through the unshielded portion.Type: ApplicationFiled: August 8, 2001Publication date: February 13, 2003Inventors: Kuo-Tung Tiao, Fu-Ming Chuang
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Publication number: 20020141192Abstract: An illuminating module is adapted for use in a display apparatus, and includes first and second reflectors, and an omnidirectional light source. The first reflector has a hemispherical first reflecting surface and a first focal point. The second reflector has a curved second reflecting surface that faces the first reflecting surface, and a second focal point that is coincident with the first focal point. The light source is coincident with the first and second focal points. A first portion of light rays from the light source radiates toward the second reflecting surface, and is reflected by the second reflecting surface to travel along an optical axis. A second portion of the light rays from the light source initially radiates toward the first reflecting surface, and is subsequently reflected by the first reflecting surface back to the light source so as to combine with the first portion of the light rays.Type: ApplicationFiled: June 15, 2001Publication date: October 3, 2002Applicant: PROKIA TECHNOLOGY CO., LTD.Inventors: Kuo-Tung Tiao, Fu-Ming Chuang
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Triple-lens type projection display with uniform optical path lengths for different color components
Patent number: 6431709Abstract: A triple-lens type projection display includes a source for generating a white primary beam output, a first beam splitter for splitting the white primary beam output into a first color component and a secondary beam output, a second beam splitter for splitting the secondary beam output into a second color component and a third color component, first, second and third light modulators for modulating the first, second and third color components, respectively, a first projection lens for receiving the first color component from the first light modulator, a second projection lens for receiving the second color component from the second light modulator, and a third projection lens for receiving the third color component from the third light modulator. Each of the first, second and third color components has a respective optical path length that is measured from the first beam splitter to a respective one of the first, second and third light modulators.Type: GrantFiled: January 5, 2001Date of Patent: August 13, 2002Assignee: Prokia Technology Co., Ltd.Inventors: Kuo-Tung Tiao, Fu-Ming Chuang, Sheng-Hsiung Chan -
Patent number: 6412953Abstract: An illumination device and an image display apparatus using the same. The illumination device comprising a light source, an illumination uniformizing device, and a polarization converter. The image display apparatus comprises an illumination device provided in the invention, a synthesizing device, and a projection device.Type: GrantFiled: October 1, 1999Date of Patent: July 2, 2002Assignee: Industrial Technology Research InstituteInventors: Kuo-Tung Tiao, Kuang-Vu Chen, Fu-Ming Chuang, Jinn-Chou Yoo
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Patent number: 6388718Abstract: An LCD projector of two-plate type is disclosed. The LCD projector comprises a light source, a color valve, a dichroic mirror, a polarization rotating device, a polarization beam splitter, a first reflective LCD panel, a second LCD panel and a projection lens. The first reflective LCD panel is used to modulate the green light with the green component of the image signal. The red light and the blue light are modulated in a time field sequential manner by the color valve and the second reflective LCD panel.Type: GrantFiled: April 30, 1999Date of Patent: May 14, 2002Assignee: Industrial Technology Research InstituteInventors: Jinn-Chou Yoo, Kuo-tung Tiao, Fu-Ming Chuang, Wei Shen, Chun-Chuan Lin, Sen-Chrong Shiau
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Triple-lens type projection display with uniform optical path lengths for different color components
Publication number: 20020041361Abstract: A triple-lens type projection display includes a source for generating a white primary beam output, a first beam splitter for splitting the white primary beam output into a first color component and a secondary beam output, a second beam splitter for splitting the secondary beam output into a second color component and a third color component, first, second and third light modulators for modulating the first, second and third color components, respectively, a first projection lens for receiving the first color component from the first light modulator, a second projection lens for receiving the second color component from the second light modulator, and a third projection lens for receiving the third color component from the third light modulator. Each of the first, second and third color components has a respective optical path length that is measured from the first beam splitter to a respective one of the first, second and third light modulators.Type: ApplicationFiled: January 5, 2001Publication date: April 11, 2002Applicant: Prokia Technology Co., Ltd.Inventors: Kuo-Tung Tiao, Fu-Ming Chuang, Sheng-Hsiung Chan -
Patent number: 6318863Abstract: An illumination device and an image projection apparatus having the same. The illumination device has a light source with multiple light emitting devices and an uniform illuminating means evenly distributed in front of the light source. The light emitted from the light source can thus uniformly project on a light valve. In addition, a polarization converter is used to convert the light into a usable polarization type, so as to increase the illumination efficiency. The image projection apparatus basically has three of the above mentioned illumination devices to emit three elementary color lights projecting onto a screen.Type: GrantFiled: September 10, 1999Date of Patent: November 20, 2001Assignee: Industrial Technology Research InstituteInventors: Kuo-Tung Tiao, Fu-Ming Chuang, Jinn-Chou Yoo, Sheng-Hsiung Chan, Tzeng-Ke Shiau
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Patent number: 6254246Abstract: An illumination device and an image display apparatus using the same. The illumination device comprising a light source, an illumination uniformizing device, and a polarization converter. The image display apparatus comprises an illumination device provided in the invention, a synthesizing means, and a projection means. The illumination uniformizing device has an incident plane for receiving a light emitted from the light source. Opposite the incident plane, a mirror is used as a side plane of the illumination uniformizing device to reflect the light coming from the incident plane. A bottom plane at a lower side and projection plane at an upper side of the incident plane are disposed between the incident plane and the side plane. A scattering pattern gradually condensed from the incident side toward the side plane is formed on the bottom plane, so that the light incident from the incident plane is made uniform.Type: GrantFiled: October 1, 1999Date of Patent: July 3, 2001Assignee: Industrial Technology Research InstituteInventors: Kuo-Tung Tiao, Kuang-Vu Chen, Fu-Ming Chuang, Jinn-Chou Yoo
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Patent number: 6227669Abstract: An image display is illuminated by a light source employing a plurality of low power light emitting devices. The lifetime and light intensity of the light sourceare increased by orders of magnitude. The illumination provided by the light source is made uniform to efficiently utilize the light source and so obtain optimum projection results.Type: GrantFiled: December 3, 1998Date of Patent: May 8, 2001Assignee: Industrial Technology Research InstituteInventors: Kuo-Tung Tiao, Kuang-Vu Chen, Fu-Ming Chuang, Jinn-Chou Yoo
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Patent number: 5920667Abstract: A switch device with a spiral mechanism for optical fiber is disclosed for improved reliablility.Type: GrantFiled: August 12, 1997Date of Patent: July 6, 1999Assignee: Industrial Technology Research InstituteInventors: Kuo-Tung Tiao, Yen-Zen Lee, Wen-Chin Lin, Victor Hwang, Yeh Jin Ching