Patents by Inventor Ching-Yi Chen
Ching-Yi Chen 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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Patent number: 8759854Abstract: A batwing beam is produced from an optical emitter having a primary LED lens over a number of LED dies on a package substrate. The LED lens includes a batwing surface formed by rotating a parabolic arc about an end of the parabolic arc over a center of the optical emitter. A center of each of the LED dies is mounted to the package substrate about the focus of a parabola whose arc forms the batwing surface, for example, between about 0.5 to 1.5 of a focal distance from the vertex of the parabola. The batwing surface reflects light from the number of LED dies through total internal reflection (TIR) or through a reflectivity gel coating.Type: GrantFiled: May 24, 2011Date of Patent: June 24, 2014Assignee: TSMC Solid State Lighting Ltd.Inventors: Ching-Yi Chen, Hao-Yu Yang
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Patent number: 8735190Abstract: A semiconductor structure includes a module with a plurality of die regions, a plurality of light-emitting devices disposed upon the substrate so that each of the die regions includes one of the light-emitting devices, and a lens board over the module and adhered to the substrate with glue. The lens board includes a plurality of microlenses each corresponding to one of the die regions, and at each one of the die regions the glue provides an air-tight encapsulation of one of the light-emitting devices by a respective one of the microlenses. Further, phosphor is included as a part of the lens board.Type: GrantFiled: July 19, 2013Date of Patent: May 27, 2014Assignee: TSMC Solid State Lighting Ltd.Inventors: Ching-Yi Chen, Yu-Sheng Tang, Hao-Yu Yang, Hsin-Hung Chen, Tzu-Wen Shih
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Patent number: 8653747Abstract: A light emitting device includes a plurality of light emitting modules and a plurality of voltage controlling circuits capable of being independently controlled. Each voltage controlling circuit includes a dynamic voltage controlling module, a current controlling module, and a luminance controlling module. The dynamic voltage controlling module is used for comparing a voltage level at a second terminal of the light emitting module and a voltage level of a reference voltage source, so as to output a first voltage. The current controlling module is used for adjusting a bias current flowing through the light emitting module, according to the first voltage. The luminance controlling module is used for comparing the first voltage with a clock signal, and for generating a pulse width modulation signal according to a result of the comparison, so as to dynamically control a duty cycle of the light emitting module.Type: GrantFiled: March 15, 2011Date of Patent: February 18, 2014Assignee: AU Optronics Corp.Inventors: Ching-Hung Wang, Ching-Yi Chen, Sheng-Kai Hsu
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Patent number: 8649101Abstract: A projection apparatus includes an illumination system providing an illumination light beam, a light valve disposed in a transmission path of the illumination light beam and converting the illumination light beam into an image light beam, a projection lens disposed in a transmission path of the image light beam, a first field lens, and a second field lens. The first field lens and the second field lens are disposed between the light valve and the projection lens and in the transmission paths of the illumination light beam and the image light beam. The first field lens is a positive meniscus lens with a first concave surface facing the projection lens. The second field lens is a positive meniscus lens with a second concave surface adjacent to the first field lens. The projection apparatus is capable of reducing a ghost image.Type: GrantFiled: August 19, 2010Date of Patent: February 11, 2014Assignee: Young Optics Inc.Inventors: Yi-Hao Kang, Yi-Hsueh Chen, Ching-Yi Chen
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Publication number: 20130309789Abstract: A semiconductor structure includes a module with a plurality of die regions, a plurality of light-emitting devices disposed upon the substrate so that each of the die regions includes one of the light-emitting devices, and a lens board over the module and adhered to the substrate with glue. The lens board includes a plurality of microlenses each corresponding to one of the die regions, and at each one of the die regions the glue provides an air-tight encapsulation of one of the light-emitting devices by a respective one of the microlenses. Further, phosphor is included as a part of the lens board.Type: ApplicationFiled: July 19, 2013Publication date: November 21, 2013Inventors: Ching-Yi Chen, Yu-Sheng Tang, Hao-Yu Yang, Hsin-Hung Chen, Tzu-Wen Shih
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Publication number: 20130299855Abstract: An optical emitter is fabricated by bonding a Light-Emitting Diode (LED) die to a package wafer, electrically connecting the LED die and the package wafer, forming a phosphor coating over the LED die on the package wafer, molding a lens over the LED die on the package wafer, molding a reflector on the package wafer, and dicing the wafer into at least one optical emitter.Type: ApplicationFiled: July 15, 2013Publication date: November 14, 2013Inventors: Hao-Wei Ku, Chung Yu Wang, Yu-Sheng Tang, Hain-Hung Chen, Hao-Yu Yang, Ching-Yi Chen, Hsiao-Wen Lee, Chi Xiang Tseng, Sheng-Shin Guo, Tien-Ming Lin, Shang-Yu Tsai
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Patent number: 8552456Abstract: A light-emitting diode (LED) packaging structure having low angular correlated color temperature deviation includes: a substrate, a LED chip, a phosphor body, and a transparent lens. The LED chip is disposed on the substrate, and the phosphor body includes a hemisphere body and an extension part extended from the bottom of the hemisphere body. The phosphor body is disposed on the substrate and covers the LED chip. Besides, the transparent lens is disposed outside the phosphor body to cover the phosphor body to increase light extraction efficiency. With the implementation of the present invention, the setup of the extension part makes a longer vertical distance between the LED chip and the top of the phosphor body, so that the light in the normal direction of the LED chip can have a longer optical length, thereby to reduce the angular correlated color temperature deviation.Type: GrantFiled: June 7, 2012Date of Patent: October 8, 2013Assignee: National Central UniversityInventors: Ching-Cherng Sun, Ching-Yi Chen, Chih-Yu Chiu
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Publication number: 20130257265Abstract: A light emitting device is provided to produce white light with a stable correlated color temperature and stable color coordinates. The light emitting device includes a blue LED chip and a yellow phosphor. The blue LED chip has a peak wavelength X slightly smaller than the peak wavelength Y of the phosphor such that when the light emitting device is subjected to a predetermined operating current, the phosphor decays due to thermal effect, and the LED chip has its emission spectrum red-shifted to substantially match with the excitation spectrum of the phosphor. At this time, the excitation ability of the LED chip is increased and causes an increase of yellow power output from the phosphor that substantially compensates a decrease of yellow light output caused by the phosphor.Type: ApplicationFiled: May 28, 2013Publication date: October 3, 2013Applicant: NATIONAL CENTRAL UNIVERSITYInventors: Ching-Cherng SUN, Ching-Yi CHEN, Hsin-Mei WU, Cheng-Chien CHEN
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Publication number: 20130242551Abstract: An illuminant with low dazzle includes a lampshade and an illuminating module. The lampshade has a receiving space, a reflection section and a transmission section. A connection hole is opened on the reflection section. The illuminating module includes at least one light source and a function board. The function board is assembled to the connection hole. The light source is electrically connected to the bottom surface of the function board. Therefore, some light beams from the light source are reflected at the reflection section to the transmission section; the others directly reach to the transmission section. All light beams from the light source are emitting out via transmission section, such that the light beams is not bright enough to make people dazzle but the intensity of the light beams are not influenced by the transmission section.Type: ApplicationFiled: March 16, 2012Publication date: September 19, 2013Applicant: National Central UniversityInventors: Ching-Cherng Sun, Jung-Hsuan Chang, Ching-Yi Chen
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Publication number: 20130240926Abstract: A light-emitting diode (LED) packaging structure having low angular correlated color temperature deviation includes: a substrate, a LED chip, a phosphor body, and a transparent lens. The LED chip is disposed on the substrate, and the phosphor body includes a hemisphere body and an extension part extended from the bottom of the hemisphere body. The phosphor body is disposed on the substrate and covers the LED chip. Besides, the transparent lens is disposed outside the phosphor body to cover the phosphor body to increase light extraction efficiency. With the implementation of the present invention, the setup of the extension part makes a longer vertical distance between the LED chip and the top of the phosphor body, so that the light in the normal direction of the LED chip can have a longer optical length, thereby to reduce the angular correlated color temperature deviation.Type: ApplicationFiled: June 7, 2012Publication date: September 19, 2013Applicant: NATIONAL CENTRAL UNIVERSITYInventors: Ching-Cherng Sun, Ching-Yi Chen, Chih-Yu Chiu
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Patent number: 8537313Abstract: The invention discloses a liquid crystal display apparatus and a color filter substrate. The color filter substrate can be used in a display module. The color filter substrate may include a glass substrate, a light-shielding matrix, a color layer and one or multiple transparent conductive films disposed on the same side of the glass substrate. There is at least one slit structure formed on one of the transparent conductive films. Each slit structure corresponds to the color layer respectively. The one or multiple transparent conductive films can be used for shielding a liquid crystal layer of the display module.Type: GrantFiled: February 6, 2012Date of Patent: September 17, 2013Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Meng-Chi Liou, Ching-Yi Chen
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Patent number: 8497519Abstract: An LED emitter uses a molded lens with phosphor material embedded in a circumferential trench to generate a batwing beam pattern. After the lens is molded over a package substrate with connected LED dies thereon, the phosphor material is molded, injected, or dispensed into a circumferential trench. The molded lens is shaped such that a majority of the light emitted by the one or more LED dies is reflected by the top surface to the side surfaces through the phosphor material.Type: GrantFiled: May 24, 2011Date of Patent: July 30, 2013Assignee: TSMC Solid State Lighting Ltd.Inventors: Ching-Yi Chen, Yu-Sheng Tang, Hao-Yu Yang, Hsin-Hung Chen, Tzu-Wen Shih
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Patent number: 8486724Abstract: An optical emitter is fabricated by bonding a Light-Emitting Diode (LED) die to a package wafer, electrically connecting the LED die and the package wafer, forming a phosphor coating over the LED die on the package wafer, molding a lens over the LED die on the package wafer, molding a reflector on the package wafer, and dicing the wafer into at least one optical emitter.Type: GrantFiled: October 22, 2010Date of Patent: July 16, 2013Assignee: TSMC Solid State Lighting Ltd.Inventors: Hao-Wei Ku, Chung Yu Wang, Yu-Sheng Tang, Hsin-Hung Chen, Hao-Yu Yang, Ching-Yi Chen, Hsiao-Wen Lee, Chi Xiang Tseng, Sheng-Shin Guo, Tien-Ming Lin, Shang-Yu Tsai
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Patent number: 8404546Abstract: A semiconductor device system, structure, and method of manufacture of a source/drain to retard dopant out-diffusion from a stressor are disclosed. An illustrative embodiment comprises a semiconductor substrate, device, and method to retard sidewall dopant out-diffusion in source/drain regions. A semiconductor substrate is provided with a gate structure, and a source and drain on opposing sides of the gate structure. Recessed regions are etched in a portion of the source and drain. Doped stressors are embedded into the recessed regions. A barrier dopant is incorporated into a remaining portion of the source and drain.Type: GrantFiled: October 14, 2010Date of Patent: March 26, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Wei-Yen Woon, Chun-Feng Nieh, Ching-Yi Chen, Hsun Chang, Chung-Ru Yang, Li-Te S. Lin
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Publication number: 20130069522Abstract: The present invention relates to a way of reducing LED's color temperature and color coordinates drifting, more particularly to a phosphor-converted LED with blue ray light emitting body so that the influence of LED's heat dissipation on color performance can be minimized.Type: ApplicationFiled: September 15, 2011Publication date: March 21, 2013Applicant: National Central UniversityInventors: Ching-Cherng Sun, Ching-Yi Chen, Hsin-Mei Wu, Cheng-Chien Chen
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Publication number: 20130027644Abstract: The invention discloses a liquid crystal display apparatus and a color filter substrate. The color filter substrate can be used in a display module. The color filter substrate may include a glass substrate, a light-shielding matrix, a color layer and one or multiple transparent conductive films disposed on the same side of the glass substrate. There is at least one slit structure formed on one of the transparent conductive films. Each slit structure corresponds to the color layer respectively. The one or multiple transparent conductive films can be used for shielding a liquid crystal layer of the display module.Type: ApplicationFiled: February 6, 2012Publication date: January 31, 2013Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventors: Meng-Chi LIOU, Ching-Yi CHEN
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Publication number: 20120299017Abstract: An LED emitter uses a molded lens with phosphor material embedded in a circumferential trench to generate a batwing beam pattern. After the lens is molded over a package substrate with connected LED dies thereon, the phosphor material is molded, injected, or dispensed into a circumferential trench. The molded lens is shaped such that a majority of the light emitted by the one or more LED dies is reflected by the top surface to the side surfaces through the phosphor material.Type: ApplicationFiled: May 24, 2011Publication date: November 29, 2012Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Ching-Yi CHEN, Yu-Sheng TANG, Hao-Yu YANG, Hsin-Hung CHEN, Tzu-Wen SHIH
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Publication number: 20120299018Abstract: A batwing beam is produced from an optical emitter having a primary LED lens over a number of LED dies on a package substrate. The LED lens includes a batwing surface formed by rotating a parabolic arc about an end of the parabolic arc over a center of the optical emitter. A center of each of the LED dies is mounted to the package substrate about the focus of a parabola whose arc forms the batwing surface, for example, between about 0.5 to 1.5 of a focal distance from the vertex of the parabola. The batwing surface reflects light from the number of LED dies through total internal reflection (TIR) or through a reflectivity gel coating.Type: ApplicationFiled: May 24, 2011Publication date: November 29, 2012Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Ching-Yi CHEN, Hao-Yu YANG
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Publication number: 20120130704Abstract: A real-time translation method for a mobile device is disclosed. In this method, a location of the mobile device is provided by a global positioning system (GPS). Then, an image is captured, and characters shown in the image are recognized in accordance with a language used in the location of the mobile device. Thereafter, the characters recognized are translated in accordance with a translation database. Then, a translation result of the characters recognized is displayed.Type: ApplicationFiled: April 15, 2011Publication date: May 24, 2012Applicant: INVENTEC CORPORATIONInventors: Po-Tsang LEE, Yuan-Chi TSAI, Meng-Chen TSAI, Ching-Hsuan HUANG, Ching-Yi CHEN, Ching-Fu HUANG
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Publication number: 20120127093Abstract: A touch pad disposed in an electronic display device is provided. The touch pad includes a sliding region, a first virtual-key region and a second virtual-key region both adjacent to the sliding region, a first vibrator and a second vibrator. The sliding region are capable of sensing a dragging action, the first virtual-key region and the second virtual-key region are capable of sensing a pressing action, and the second virtual-key region corresponds to one side of the first virtual-key region. The first vibrator and the second vibrator are respectively disposed underneath the first virtual-key region and the second virtual-key region. When the first virtual-key region senses the pressing action, the first vibrator generates vibration. When the second virtual-key region senses the pressing action, the second vibrator generates vibration.Type: ApplicationFiled: April 27, 2011Publication date: May 24, 2012Applicant: INVENTEC CORPORATIONInventors: Ching-Hsuan HUANG, Po-Tsang LEE, Meng-Chen TSAI, Ching-Fu HUANG, Ching-Yi CHEN, Yuan-Chi TSAI