Patents by Inventor Hung Chen Kao
Hung Chen Kao 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: 9224544Abstract: A trace structure for a touch panel having a transparent substrate with a touch sensing region and a border region surrounding the touch sensing region, the trace structure including: a plurality of traces disposed on the transparent substrate and within the border region; a plurality of bonding pads disposed in the border region of the transparent substrate, wherein each bonding pad has a first side and a second side, and the first side of each bonding pad is connected to a corresponding trace of the plurality of traces; and at least two trace extending portions extended toward an outer edge of the border region from the second side of two of the plurality of bonding pads.Type: GrantFiled: June 26, 2013Date of Patent: December 29, 2015Assignee: HANNSTAR DISPLAY CORPInventors: Hung-Chen Kao, Yu-Sheng Lin, Chia-Feng Teng
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Patent number: 8941608Abstract: A liquid crystal display according to the present disclosure is provided. The liquid crystal display includes a frame, a backlight module, a plurality of hooking members, an LCD panel, and a touch sensor. According to the liquid crystal display of the present disclosure, wherein the hooking members on the frame may secure the touch sensor or the LCD panel on the backlight module without need of using double-sided tapes or optical adhesive.Type: GrantFiled: June 8, 2012Date of Patent: January 27, 2015Assignee: Hannstar Display Corp.Inventors: Ming Sheng Chiu, Wen Chi Lin, Hung Chen Kao, Chien Hsiang Tseng, Chia Feng Teng
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Publication number: 20140015563Abstract: A trace structure for a touch panel having a transparent substrate with a touch sensing region and a border region surrounding the touch sensing region, the trace structure including: a plurality of traces disposed on the transparent substrate and within the border region; a plurality of bonding pads disposed in the border region of the transparent substrate, wherein each bonding pad has a first side and a second side, and the first side of each bonding pad is connected to a corresponding trace of the plurality of traces; and at least two trace extending portions extended toward an outer edge of the border region from the second side of two of the plurality of bonding pads.Type: ApplicationFiled: June 26, 2013Publication date: January 16, 2014Inventors: Hung-Chen KAO, Yu-Sheng LIN, Chia-Feng TENG
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Publication number: 20130057484Abstract: A liquid crystal display according to the present disclosure is provided. The liquid crystal display includes a frame, a backlight module, a plurality of hooking members, an LCD panel, and a touch sensor. According to the liquid crystal display of the present disclosure, wherein the hooking members on the frame may secure the touch sensor or the LCD panel on the backlight module without need of using double-sided tapes or optical adhesive.Type: ApplicationFiled: June 8, 2012Publication date: March 7, 2013Applicant: HANNSTAR DISPLAY CORP.Inventors: Ming Sheng CHIU, Wen Chi LIN, Hung Chen KAO, Chien Hsiang TSENG, Chia Feng TENG
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Patent number: 7559682Abstract: The present invention provides a backlight module used for a liquid crystal display. The backlight comprises a back plate having a first track set, a detachable light source set disposed on the back plate, and an optical films set combined with the back plate. The detachable light source set comprises a base, a light source disposed on a first side of the base, and a second track set disposed on a second side of the base. The second track set can connect to and slide on the first track set. Then the detachable light source set is removable, and the light source is easily to be replaced.Type: GrantFiled: March 4, 2005Date of Patent: July 14, 2009Assignee: Hannstar Display CorporationInventors: Hung-Chen Kao, Ke-Chin Chang, Fu-Tung Chen, Yuh-Hsien Wang, Cheng-Chia Wu, Sheng-Hao Huang
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Patent number: 7528900Abstract: A liquid crystal display module with backlight module providing an enhancement coefficient of the brightness enhancement film (BEF) within the range of 0.1 to 0.5. The backlight module is disposed behind the display panel and comprises a bottom diffuser, a brightness enhancement film, and a top diffuser disposed on the brightness enhancement film. A set of polarizers is disposed above and below the liquid crystal display panel. The backlight module meets TCO standards and has improved optical performance.Type: GrantFiled: April 7, 2006Date of Patent: May 5, 2009Assignee: Hannstar Display CorporationInventors: Chih-Li Chang, Hung-Chen Kao, Wei-Chi Lin, Jia-Rung Juang
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Patent number: 7518321Abstract: The invention is directed to a light module, which allows the individual lamp unit to be replaced with a new one and the luminance of the newly-replaced lamp unit can be automatically or manually adjusted to get a uniform luminance. Wherein, information of a first relation table of a lamp luminance versus a using time and a second relation table of the lamp luminance versus an operation current-power is used to determine the current power. In addition, a clocking unit is used to count a total using time for the light module. Then, a desired lamp luminance according to the first relation table can be determined, and then the current power is determined according to the second relation table.Type: GrantFiled: December 12, 2007Date of Patent: April 14, 2009Assignee: Hannstar Display CorporationInventors: Ke-Chin Chang, Hung-Chen Kao, Hsin-Chieh Lai
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Patent number: 7486354Abstract: A cut filter is used in a backlight module or a display device and positioned over the light source to filter off a part of the light comprising an overlap of at least two of the red light, the green light, and the blue light. By filtering off the overlapping part of light emitted from the light source to obtain a purer primary color light, the display device equipped with a conventional color filter can attain an improved color gamut.Type: GrantFiled: January 26, 2006Date of Patent: February 3, 2009Assignee: HannStar Display Corp.Inventors: Chih-Li Chang, Chi-Jen Huang, Hung-Chen Kao, Ching-Cherng Sun, Cheng-Chung Lee
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Publication number: 20080136997Abstract: A liquid crystal display device has an upper prism sheet and a lower polarizer disposed on the upper prism sheet. The upper prism sheet has a plurality of first parallel ridgelines arranged in a first direction and a light-condensing direction. The first direction of the first parallel ridgelines is substantially perpendicular to the light-condensing direction. The lower polarizer has a first transmissive axis substantially parallel to the light-condensing direction.Type: ApplicationFiled: December 6, 2006Publication date: June 12, 2008Inventors: Chih-Li Chang, Cheng-Chia Wu, Hung-Chen Kao
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Publication number: 20080088261Abstract: The invention is directed to a light module, which allows the individual lamp unit to be replaced with a new one and the luminance of the newly-replaced lamp unit can be automatically or manually adjusted to get a uniform luminance. Wherein, information of a first relation table of a lamp luminance versus a using time and a second relation table of the lamp luminance versus an operation current-power is used to determine the current power. In addition, a clocking unit is used to count a total using time for the light module. Then, a desired lamp luminance according to the first relation table can be determined, and then the current power is determined according to the second relation table.Type: ApplicationFiled: December 12, 2007Publication date: April 17, 2008Applicant: HANNSTAR DISPLAY CORPORATIONInventors: Ke-Chin Chang, Hung-Chen Kao, Hsin-Chieh Lai
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Patent number: 7350955Abstract: A back light source module of a liquid crystal device is provided. The back light source module includes a backplate, a light source fixture disposed on the backplate. The back light source module also includes a first light source having a first normal line and disposing on the light source fixture, a second light source having a second normal line and disposing on the light source fixture, and a third light source having a third normal line and disposing on the light source fixture. Among them, a first angle is formed between the second normal line and the first normal line, a second angle is formed between the third normal line and the first normal line, and both the first angle and the second angle are less than 90 degrees.Type: GrantFiled: December 1, 2005Date of Patent: April 1, 2008Assignee: Hannstar Display CorporationInventors: Chih-Li Chang, Hung-Chen Kao
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Patent number: 7327097Abstract: The invention is directed to a light module, which allows the individual lamp unit to be replaced with a new one and the luminance of the newly-replaced lamp unit can be automatically or manually adjusted to get a uniform luminance. Wherein, information of a first relation table of a lamp luminance versus a using time and a second relation table of the lamp luminance versus an operation current-power is used to determine the current power. In addition, a clocking unit is used to count a total using time for the light module. Then, a desired lamp luminance according to the first relation table can be determined, and then the current power is determined according to the second relation table.Type: GrantFiled: March 21, 2005Date of Patent: February 5, 2008Assignee: Hannstar Display CorporationInventors: Ke-Chin Chang, Hung-Chen Kao, Hsin-Chieh Lai
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Publication number: 20070236634Abstract: A liquid crystal display module with backlight module providing an enhancement coefficient of the brightness enhancement film (BEF) within the range of 0.1 to 0.5. The backlight module is disposed behind the display panel and comprises a bottom diffuser, a brightness enhancement film, and a top diffuser disposed on the brightness enhancement film. A set of polarizers is disposed above and below the liquid crystal display panel. The backlight module meets TCO standards and has improved optical performance.Type: ApplicationFiled: April 7, 2006Publication date: October 11, 2007Inventors: Chih-Li Chang, Hung-Chen Kao, Wei-Chi Lin, Jia-Rung Juang
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Publication number: 20070171186Abstract: A cut filter is used in a backlight module or a display device and positioned over the light source to filter off a part of the light comprising an overlap of at least two of the red light, the green light, and the blue light. By filtering off the overlapping part of light emitted from the light source to obtain a purer primary color light, the display device equipped with a conventional color filter can attain an improved color gamut.Type: ApplicationFiled: January 26, 2006Publication date: July 26, 2007Inventors: Chih-Li Chang, Chi-Jen Huang, Hung-Chen Kao, Ching-Cherng Sun, Cheng-Chung Lee
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Publication number: 20070103853Abstract: Here provided is a structure for assembling a flat panel display in a notebook. A rear cover has a cross section of a wedge shape conformable to an LCD module so as to avoid using a conventional rectangular plastic mold frame by replacing it with the rear cover. Additionally, a conventional bezel is replaced with a front frame of the notebook. With such replacement, a structure and processes for assembling the flat panel display in the notebook can be significantly simplified without scarifying the advantage of the high compactness of the notebook computer to decrease a fabricating cost and the weight of the flat display.Type: ApplicationFiled: November 9, 2005Publication date: May 10, 2007Inventor: Hung-Chen Kao
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Patent number: 7172329Abstract: The present invention provides a back light module, having an optical element, a light source and an outer supporting means. The optical element includes main body and protrusions which protrude from an edge of the main body. Contiguous protrusions with the main body form a positioning groove. The conjunction region between protrusion and main body is a fillet. The outer supporting means fixes the optical elements and the light source, which has at least one positioning component disposed on the edge of the back plate. The positioning component includes one inner wall near to edge of the main body, a side wall near to the protrusion and a transition wall connecting the side wall and the inner wall. A separate distance g between the fillet and the side wall so that the optical element can be prevented from cracking during the impact or shock test of the back light module.Type: GrantFiled: March 24, 2005Date of Patent: February 6, 2007Assignee: Hannstar Display CorporationInventors: Hung-Chen Kao, Hsin-Chieh Lai
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Publication number: 20060285311Abstract: A light-emitting device comprises at least one light source to emit a light and a transparent cap positioned over the light source. The transparent cap has a tapered interior for receiving and refracting the light from the light source and an exterior for refracting the light. The distance of light mixing is shortened conveniently using the light-emitting device.Type: ApplicationFiled: June 19, 2005Publication date: December 21, 2006Inventors: Chih-Li Chang, Chi-Jen Huang, Hung-Chen Kao
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Publication number: 20060209538Abstract: Backlight modules are provided. The backlight module includes a printed circuit board, a plurality of red light emitting diodes, a plurality of blue light emitting diodes, a plurality of green light emitting diodes and a plurality of white light emitting diodes. The plurality of red, blue, green and white light emitting diodes are disposed on the printed circuit board, defining a light emitting area. The plurality of white light emitting diodes is disposed at the periphery of the light emitting area. Wherein both the blue light emitting diodes include a blue light chip and the red light emitting diodes include a red light chip respectively, the green light emitting diodes include a larger green light chip or two equal sized green light chips to the blue and red light chips.Type: ApplicationFiled: April 21, 2006Publication date: September 21, 2006Applicant: Hannstar Display Corp.Inventors: Chih-Li Chang, Hung-Chen Kao
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Publication number: 20060208670Abstract: The invention is directed to a light module, which allows the individual lamp unit to be replaced with a new one and the luminance of the newly-replaced lamp unit can be automatically or manually adjusted to get a uniform luminance. Wherein, information of a first relation table of a lamp luminance versus a using time and a second relation table of the lamp luminance versus an operation current-power is used to determine the current power. In addition, a clocking unit is used to count a total using time for the light module. Then, a desired lamp luminance according to the first relation table can be determined, and then the current power is determined according to the second relation table.Type: ApplicationFiled: March 21, 2005Publication date: September 21, 2006Inventors: Ke-Chin Chang, Hung-Chen Kao, Hsin-Chieh Lai
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Publication number: 20060203465Abstract: A back light source module of a liquid crystal device is provided. The back light source module includes a backplate, a light source fixture disposed on the backplate. The back light source module also includes a first light source having a first normal line and disposing on the light source fixture, a second light source having a second normal line and disposing on the light source fixture, and a third light source having a third normal line and disposing on the light source fixture. Among them, a first angle is formed between the second normal line and the first normal line, a second angle is formed between the third normal line and the first normal line, and both the first angle and the second angle are less than 90 degrees.Type: ApplicationFiled: December 1, 2005Publication date: September 14, 2006Applicant: Hannstar Display CorporationInventors: Chih-Li Chang, Hung-Chen Kao