Patents by Inventor Ke-Chin Chang
Ke-Chin Chang 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).
-
TOUCH DISPLAY DEVICES, COVER LENS THEREOF AND BONDING EQUIPMENT FOR FABRICATING TOUCH DISPLAY DEVICE
Publication number: 20130335347Abstract: A touch display device is provided. The touch display device includes a cover lens which has a first flat outside surface and an opposite second concave inner surface. A touch sensing element is disposed under the second surface of the cover lens and a display element is disposed under the touch sensing element. A border adhesive is disposed between the display element and the touch sensing element to form a gap surrounded by the border adhesive. A height at the center of the gap is higher than a height at the periphery of the gap. Further, a bonding equipment for fabricating the touch display device is provided. The bonding equipment includes a first and a second tray component for carrying the cover lens and the touch sensing element, respectively.Type: ApplicationFiled: January 10, 2013Publication date: December 19, 2013Applicant: Hannstar Display Corp.Inventors: Kun Lung WU, Ke-Chin CHANG, Chia-Feng TENG -
Patent number: 8482692Abstract: The invention provides an LCD apparatus including a backlight assembly, an LCD panel assembly and an edge-engaging assembly. In particular, the edge-engaging assembly comprises N edge-engaging members, wherein N is an integer ranging from 1 to 4. Each of the N edge-engaging members has a respective inner wall adapted to engage the corresponding edge portions of the backlight assembly and the LCD assembly.Type: GrantFiled: January 14, 2010Date of Patent: July 9, 2013Assignee: Hannstar Display CorporationInventors: Chih-Li Chang, Po-Chun Chen, Ke-Chin Chang
-
Patent number: 8398286Abstract: A backlight module for a liquid crystal display according to the present invention is provided. The backlight module includes a light guide plate, a light source, a first reflection sheet and a second reflection sheet. The light guide plate has an upper surface, a lower surface, and opposing first and second side surfaces. The light source is disposed on the first side surface of the light guide plate and comprises a plurality of point light sources. The first reflection sheet is disposed on the light source and the upper surface of the light guide plate to reflect light beams emitting from the light source to the light guide plate. The first reflection sheet includes a plurality of first portions, a plurality of second portions and a plurality of protrusion portions, wherein the first portions are positioned corresponding to the light source and arranged alternately with the second portions. The protrusion portions extend from the second portions toward the second side surface of the light guide plate.Type: GrantFiled: July 2, 2010Date of Patent: March 19, 2013Assignee: Hannstar Display Corp.Inventor: Ke Chin Chang
-
Publication number: 20120223896Abstract: A touch display apparatus having a cover lens structure is described. The touch display apparatus includes a touch sensing layer, a display panel adjacent to the touch sensing layer, a backlight module adjacent o the display panel and a cover lens structure. The cover lens structure includes a substrate, a first segment height and a side-wall portion. The first segment height protrudes from the substrate wherein the first segment height and the substrate forms a first receiving space to allow the first segment height to retain the touch sensing layer. The side-wall portion extends and bends from a side edge of the substrate wherein the side-wall portion has a locking portion for buckling the backlight module.Type: ApplicationFiled: February 9, 2012Publication date: September 6, 2012Applicant: HANNSTAR DISPLAY CORPORATIONInventors: Chien-Hsiang Tseng, Ke-Chin Chang, Chia-Feng Teng
-
Publication number: 20110002141Abstract: A backlight module for a liquid crystal display according to the present invention is provided. The backlight module includes a light guide plate, a light source, a first reflection sheet and a second reflection sheet. The light guide plate has an upper surface, a lower surface, and opposing first and second side surfaces. The light source is disposed on the first side surface of the light guide plate and comprises a plurality of point light sources. The first reflection sheet is disposed on the light source and the upper surface of the light guide plate to reflect light beams emitting from the light source to the light guide plate. The first reflection sheet includes a plurality of first portions, a plurality of second portions and a plurality of protrusion portions, wherein the first portions are positioned corresponding to the light source and arranged alternately with the second portions. The protrusion portions extend from the second portions toward the second side surface of the light guide plate.Type: ApplicationFiled: July 2, 2010Publication date: January 6, 2011Applicant: HannStar Display Corp.Inventor: Ke Chin CHANG
-
Publication number: 20100177260Abstract: The invention provides an LCD apparatus including a backlight assembly, an LCD panel assembly and an edge-engaging assembly. In particular, the edge-engaging assembly comprises N edge-engaging members, wherein N is an integer ranging from 1 to 4. Each of the N edge-engaging members has a respective inner wall adapted to engage the corresponding edge portions of the backlight assembly and the LCD assembly.Type: ApplicationFiled: January 14, 2010Publication date: July 15, 2010Inventors: Chih-Li CHANG, Po-Chun Chen, Ke-Chin Chang
-
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
-
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
-
Patent number: 7382423Abstract: A backlight module is applied to a liquid crystal display device. The liquid crystal display device includes an optical film set having at least one optical film. The optical film set is disposed above the backlight module. The backlight module includes a housing and a spacer. The housing has a bottom plate provided with a through opening, an inward side and an outward side, wherein the inward side faces the optical film and the outward side is opposite to the inward side. The spacer supports the optical film set and is mounted onto the bottom plate of the backlight module from the outward side of the bottom plate.Type: GrantFiled: October 5, 2004Date of Patent: June 3, 2008Assignee: Hannstar Display Corp.Inventors: Ke Chin Chang, Fu Tung Chen, Yu Hsien Wang
-
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
-
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
-
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
-
Publication number: 20060066767Abstract: 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: ApplicationFiled: March 4, 2005Publication date: March 30, 2006Inventors: Hung-Chen Kao, Ke-Chin Chang, Fu-Tung Chen, Yuh-Hsien Wang, Cheng-Chia Wu, Sheng-Hao Huang