Patents by Inventor Chai Wu
Chai Wu 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: 20130200814Abstract: An LED lighting apparatus and a dimming method thereof are disclosed. The LED lighting apparatus is coupled to a power source through a power switch. The method includes providing a first lighting unit and a second lighting unit; detecting whether or not the power switch has been turned on; and gradually adjusting a light mixing ratio between the first lighting unit and the second lighting unit according to a turn-on duration of the power switch and storing a color temperature value, accordingly.Type: ApplicationFiled: July 30, 2012Publication date: August 8, 2013Applicant: LEXTAR ELECTRONICS CORP.Inventors: CHUN-KUANG CHEN, MENG CHAI WU, PO-SHEN CHEN, FENG-LING LIN, HUI YING CHEN
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Patent number: 8304993Abstract: A lamp tube according to the present invention at least comprises: a tube body, a light-emitting module, a driving module and an electrical connection module. The light-emitting module and the driving module are disposed in the tube body. The light-emitting module is provided with a first circuit board and a plurality of LEDs. The driving module is provided with at least a second circuit board and a drive circuit. The electrical connection module forms an electrical connection between the first and second circuit boards. It is convenient to independently replace or repair the driving module or the light-emitting module without discarding the entire lamp tube so as to effectively save costs and achieve the effects of energy saving and environmental protection.Type: GrantFiled: September 1, 2009Date of Patent: November 6, 2012Assignee: Lextar Electronics Corp.Inventors: Hua-Lung Tzou, Meng-Chai Wu
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Patent number: 8194208Abstract: A backlight module includes a bezel having at least one edge, a circuit board, one or more light emitting diodes connected to the circuit board for emitting light. Each light emitting diode has a light axis which is neither parallel nor vertical to the edge of the bezel. The backlight module utilizes a heat conductive block disposed between the bezel and the light emitting diode for transferring heat generated by the light emitting diode to the bezel.Type: GrantFiled: September 13, 2010Date of Patent: June 5, 2012Assignee: AU Optronics Corp.Inventors: Meng-chai Wu, Chi-chung Lo, Chin-kun Hsieh, Cheng-chih Lai, Chi-chen Cheng
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Patent number: 8157408Abstract: A lighting apparatus includes a housing, a light source disposed in the housing and at least one adjustable assembly. The adjustable assembly disposed at an end of the housing includes a connection element fixed to the end, a cap capping the connection element, at least one electrical terminal electrically connected to the light source and a detachable fixing element. The cap includes a side wall, an end wall and an opening disposed at the side wall. The side wall is disposed at the end wall to which the opening is opposite. The connection element passes through the opening. The electrical terminal disposed at the end wall extends outside the cap. The detachable fixing element passes through the side wall to detachably fix the cap to the connection element. When the detachable fixing element is detached, the housing and the connection element are adapted to be rotated relative to the cap.Type: GrantFiled: February 10, 2010Date of Patent: April 17, 2012Assignee: Lextar Electronics CorporationInventors: He-Shun Yang, Shih-Chin Chou, Meng-Chai Wu
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Patent number: 8147092Abstract: An illuminating device comprises a base, a light source and at least one first layer, wherein said light source is assembled on said base to emit a first color temperature light, while first layer is located on the base along the first light irradiation path. The first light is passed through the first layer to react with said first layer to form a second color temperature light for emission, wherein said first color temperature is ranged from 2800K to 20000K, while excitation wavelength range of said first layer is mainly beyond the wavelength of ultraviolet lights for further adjusting the second color temperature range.Type: GrantFiled: March 18, 2008Date of Patent: April 3, 2012Assignee: Lextar Electronics Corp.Inventors: Meng-Chai Wu, Chien-Lung Lee
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Patent number: 8092046Abstract: An LED lighting device includes a circuit board, a plurality of LED units, a waterproof layer and a middle layer. The LED units are disposed on the circuit board by surface mounted way. The light beam emitted from the LED units emits from the light-emitting surface. The waterproof layer wraps the circuit board and the LED units. The middle layer is located between the light-emitting surface and the water-proof layer. The middle layer extends from a direction of the LED units being disposed on the circuit board so that the middle layer fully covers the light-emitting surface. The light beams passing through the light-emitting surface enters into the waterproof layer via the middle layer. Thereby, the middle layer is located between the LED units and the waterproof layer to make the color of the light beam be more uniform.Type: GrantFiled: September 4, 2009Date of Patent: January 10, 2012Assignee: Lextar Electronics Corp.Inventors: Meng-Chai Wu, He-Shun Yang
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Publication number: 20110194278Abstract: A lighting apparatus includes a housing, a light source disposed in the housing and at least one adjustable assembly. The adjustable assembly disposed at an end of the housing includes a connection element fixed to the end, a cap capping the connection element, at least one electrical terminal electrically connected to the light source and a detachable fixing element. The cap includes a side wall, an end wall and an opening disposed at the side wall. The side wall is disposed at the end wall to which the opening is opposite. The connection element passes through the opening. The electrical terminal disposed at the end wall extends outside the cap. The detachable fixing element passes through the side wall to detachably fix the cap to the connection element. When the detachable fixing element is detached, the housing and the connection element are adapted to be rotated relative to the cap.Type: ApplicationFiled: February 10, 2010Publication date: August 11, 2011Inventors: He-Shun Yang, Shih-Chin Chou, Meng-Chai Wu
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Publication number: 20110156067Abstract: A light emitting module includes a substrate, a conductive layer, a first light emitter, a second light emitter and a protection layer. The substrate has a first surface and a second surface on opposite sides of the substrate. The conductive layer is configured in the substrate. The first light emitter is disposed on the first surface and connected with the conductive layer. The second light emitter is disposed on the second surface and connected with the conductive layer. The protection layer covers the first light emitter and the second light emitter.Type: ApplicationFiled: December 30, 2010Publication date: June 30, 2011Applicant: Lextar Electronics CorporationInventors: Jhih-Han Lin, Tsung-Lin Yu, He-Shun Yang, Meng-Chai Wu
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Publication number: 20110007521Abstract: A backlight module includes a bezel having at least one edge, a circuit board, one or more light emitting diodes connected to the circuit board for emitting light. Each light emitting diode has a light axis which is neither parallel nor vertical to the edge of the bezel. The backlight module utilizes a heat conductive block disposed between the bezel and the light emitting diode for transferring heat generated by the light emitting diode to the bezel.Type: ApplicationFiled: September 13, 2010Publication date: January 13, 2011Applicant: AU Optronics Corp.Inventors: Meng-chai Wu, Chi-chung Lo, Chin-kun Hsieh, Cheng-chih Lai, Chi-chen Cheng
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Publication number: 20110006703Abstract: A light emitting diode (LED) illumination device utilizes a power transmission line to electrically connect a driving module and at least one LED lamp body. The driving module outputs a high frequency alternating power having above 30 voltages and above 72 Hz frequencies through frequency modulation. Each LED lamp body has at least one LED element and a rectification module. The high frequency alternating power generated from the driving module is modulated by the rectification module into a direct power to drive the LED element. Accordingly, the flicker phenomenon on the light source can be effectively improved, and the filter component installed inside each LED lamp body can be omitted. A simple circuit is used to reliably drive the LED element to achieve goals of rapidly developing products and saving costs.Type: ApplicationFiled: July 6, 2010Publication date: January 13, 2011Inventors: Meng-Chai Wu, Hua-Lung Tzou, Chun-Kai Hsu
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Publication number: 20100327301Abstract: An LED lighting device includes a circuit board, a plurality of LED units, a waterproof layer and a middle layer. The LED units are disposed on the circuit board by surface mounted way. The light beam emitted from the LED units emits from the light-emitting surface. The waterproof layer wraps the circuit board and the LED units. The middle layer is located between the light-emitting surface and the water-proof layer. The middle layer extends from a direction of the LED units being disposed on the circuit board so that the middle layer fully covers the light-emitting surface. The light beams passing through the light-emitting surface enters into the waterproof layer via the middle layer. Thereby, the middle layer is located between the LED units and the waterproof layer to make the color of the light beam be more uniform.Type: ApplicationFiled: September 4, 2009Publication date: December 30, 2010Inventors: MENG-CHAI WU, HE-SHUN YANG
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Patent number: 7837376Abstract: An image display apparatus comprising a light guide plate, a light-emitting diode (LED), a first transparent substrate and a second transparent substrate is provided. Light generated from the LED is guided into the light guide plate through the edge thereof, and outwardly projected through the two opposite surfaces of the light guide plate. Thus, a pattern being disposed in front of the first transparent substrate or the second transparent substrate would be lighted up.Type: GrantFiled: August 14, 2008Date of Patent: November 23, 2010Assignee: Lextar Electronics CorporationInventors: Meng-Chai Wu, Chien-Lung Lee
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Publication number: 20100201269Abstract: A lamp tube according to the present invention at least comprises: a tube body, a light-emitting module, a driving module and an electrical connection module. The light-emitting module and the driving module are disposed in the tube body. The light-emitting module is provided with a first circuit board and a plurality of LEDs. The driving module is provided with at least a second circuit board and a drive circuit. The electrical connection module forms an electrical connection between the first and second circuit boards. It is convenient to independently replace or repair the driving module or the light-emitting module without discarding the entire lamp tube so as to effectively save costs and achieve the effects of energy saving and environmental protection.Type: ApplicationFiled: September 1, 2009Publication date: August 12, 2010Inventors: Hua-Lung TZOU, Meng-Chai Wu
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Publication number: 20100188836Abstract: An illuminating device comprises a base, a light source and at least one first layer, wherein said light source is assembled on said base to emit a first color temperature light, while first layer is located on the base along the first light irradiation path. The first light is passed through the first layer to react with said first layer to form a second color temperature light for emission, wherein said first color temperature is ranged from 2800K to 20000K, while excitation wavelength range of said first layer is mainly beyond the wavelength of ultraviolet lights for further adjusting the second color temperature range.Type: ApplicationFiled: March 18, 2008Publication date: July 29, 2010Inventors: Meng-Chai Wu, Chien-Lung Lee
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Publication number: 20100033452Abstract: A remote controller according to the present invention comprises a power transfer module, a first display module, a control module and a driving circuit. The first display module is provided with some light emitting dices corresponding to the polycrystalline light emitting diodes of the light emitting diode module. Each light emitting dice of the first display module is mainly controlled by the control module to present a mixed color of light and the light emitting diode module is synchronously actuated by the driving circuit to enable the mixed color of light of the light emitting diode module and the first display module to be presented synchronously, thus increasing the operative convenience and improving the control accuracy.Type: ApplicationFiled: December 7, 2008Publication date: February 11, 2010Inventors: Tsung-Lin YU, Hua-Lung Tzou, Meng-Chai Wu
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Publication number: 20090290378Abstract: An image display apparatus comprising a light guide plate, a light-emitting diode (LED), a first transparent substrate and a second transparent substrate is provided. Light generated from the LED is guided into the light guide plate through the edge thereof, and outwardly projected through the two opposite surfaces of the light guide plate. Thus, a pattern being disposed in front of the first transparent substrate or the second transparent substrate would be lighted up.Type: ApplicationFiled: August 14, 2008Publication date: November 26, 2009Applicant: LIGHTHOUSE TECHNOLOGY CO., LTD.Inventors: Meng-Chai Wu, Chien-Lung Lee
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Patent number: 7575357Abstract: A backlight system and an LCD using the same are provided. The present backlight system is equipped with a light-source driving module and several light sources of different optimum working temperature ranges. Hence, according to the environmental temperature, appropriate light source(s) will be driven by the light-source driving module to maintain a constant light output of the backlight system.Type: GrantFiled: April 19, 2005Date of Patent: August 18, 2009Assignee: AU Optronics CorporationInventors: Meng-Chai Wu, Chin-Kun Hsieh
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Publication number: 20090196030Abstract: An illuminating device comprises a base, a light source and at least one first layer, wherein said light source is assembled on said base to emit a first color temperature light, while first layer is located on the base along the first light irradiation path. The first light is passed through the first layer to react with said first layer to form a second color temperature light for emission, wherein said first color temperature is ranged from 2800K to 20000K, while excitation wavelength range of said first layer is mainly beyond the wavelength of ultraviolet lights for further adjusting the second color temperature range.Type: ApplicationFiled: February 5, 2009Publication date: August 6, 2009Inventors: Meng-Chai WU, Chien-Lung Lee
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Patent number: D596764Type: GrantFiled: January 20, 2009Date of Patent: July 21, 2009Assignee: LightHouse Technology Co., LtdInventors: He-Shun Yang, Meng-Chai Wu
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Patent number: D603810Type: GrantFiled: October 1, 2008Date of Patent: November 10, 2009Assignee: Lighthouse Technology Co., Ltd.Inventors: He-Shun Yang, Meng-Chai Wu