Patents by Inventor Hung-Chi Chang
Hung-Chi 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).
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Publication number: 20240145653Abstract: A manufacturing method of a display device includes forming light emitting components on a first substrate, the light emitting components include a first side and a second side, and the second side is away from the first substrate; forming a circuit layer on the first substrate and on the second side of the light emitting components; forming a first protective layer on the circuit layer and forming an insulating layer on the first protective layer; removing the first substrate after forming a second substrate on the insulating layer; forming a black matrix layer on the first side of the light emitting components, and the black matrix layer includes openings; forming light conversion layers in the openings of the black matrix layer; forming a second protective layer on the black matrix layer and the light conversion layers; and forming a third substrate on the second protective layer.Type: ApplicationFiled: May 12, 2023Publication date: May 2, 2024Applicant: HANNSTAR DISPLAY CORPORATIONInventors: Chun-I Chu, Yu-Chi Chiao, Yung-Li Huang, Hung-Ming Chang, Cheng-Yu Lin, Huan-Hsun Hsieh, CHeng-Pei Huang
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Publication number: 20240136226Abstract: An ammonium fluoride gas may be used to form a protection layer for one or more interlayer dielectric layers, one or more insulating caps, and/or one or more source/drain regions of a semiconductor device during a pre-clean etch process. The protection layer can be formed through an oversupply of nitrogen trifluoride during the pre-clean etch process. The oversupply of nitrogen trifluoride causes an increased formation of ammonium fluoride, which coats the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) with a thick protection layer. The protection layer protects the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) during the pre-clean process from being etched by fluorine ions formed during the pre-clean process.Type: ApplicationFiled: January 2, 2024Publication date: April 25, 2024Inventors: Li-Wei CHU, Ying-Chi SU, Yu-Kai CHEN, Wei-Yip LOH, Hung-Hsu CHEN, Chih-Wei CHANG, Ming-Hsing TSAI
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Patent number: 11915976Abstract: An ammonium fluoride gas may be used to form a protection layer for one or more interlayer dielectric layers, one or more insulating caps, and/or one or more source/drain regions of a semiconductor device during a pre-clean etch process. The protection layer can be formed through an oversupply of nitrogen trifluoride during the pre-clean etch process. The oversupply of nitrogen trifluoride causes an increased formation of ammonium fluoride, which coats the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) with a thick protection layer. The protection layer protects the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) during the pre-clean process from being etched by fluorine ions formed during the pre-clean process.Type: GrantFiled: June 27, 2022Date of Patent: February 27, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Li-Wei Chu, Ying-Chi Su, Yu-Kai Chen, Wei-Yip Loh, Hung-Hsu Chen, Chih-Wei Chang, Ming-Hsing Tsai
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Patent number: 10256844Abstract: A decoding method, a memory storage device, and a memory control circuit unit are provided. The decoding method includes: reading a codeword from a memory module and estimating error level information of the codeword; inputting the codeword and the error level information to an error checking and correcting circuit through a first message channel and a second message channel respectively; determining whether the error level information meets a default condition; if yes, inputting the codeword to a first decoding engine of the error checking and correcting circuit for decoding; otherwise, inputting the codeword to a second decoding engine of the error checking and correcting circuit for decoding, wherein a power consumption of the first decoding engine is lower than that of the second decoding engine, and a decoding success rate of the first decoding engine is lower than that of the second decoding engine. Therefore, an operating flexibility for decoding may be improved.Type: GrantFiled: August 30, 2016Date of Patent: April 9, 2019Assignee: Shenzhen EpoStar Electronics Limited CO.Inventors: Yu-Hua Hsiao, Heng-Lin Yen, Hung-Chi Chang
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Publication number: 20180013450Abstract: A decoding method, a memory storage device, and a memory control circuit unit are provided. The decoding method includes: reading a codeword from a memory module and estimating error level information of the codeword; inputting the codeword and the error level information to an error checking and correcting circuit through a first message channel and a second message channel respectively; determining whether the error level information meets a default condition; if yes, inputting the codeword to a first decoding engine of the error checking and correcting circuit for decoding; otherwise, inputting the codeword to a second decoding engine of the error checking and correcting circuit for decoding, wherein a power consumption of the first decoding engine is lower than that of the second decoding engine, and a decoding success rate of the first decoding engine is lower than that of the second decoding engine. Therefore, an operating flexibility for decoding may be improved.Type: ApplicationFiled: August 30, 2016Publication date: January 11, 2018Applicant: EpoStar Electronics Corp.Inventors: Yu-Hua Hsiao, Heng-Lin Yen, Hung-Chi Chang
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Publication number: 20170134049Abstract: A decoding method, a memory storage device and a memory control circuit unit are provided. The method includes: determining an offset threshold value and a corresponding check matrix; receiving response data from a rewritable non-volatile memory module and performing an iterative decoding process. The check matrix includes at least one sub-matrix group, each sub-matrix of the sub-matrix group has a default dimension, and the offset threshold value is less than a default dimension value corresponding to the default dimension In the iterative decoding process, several default groups in a data set are shifted, so as to obtain first shift groups, while an offset of each first shift group with respect to a corresponding group among the default groups is not over the default threshold value. Therefore, decoding reference data used in the iterative decoding process may be generated more efficiently.Type: ApplicationFiled: December 29, 2015Publication date: May 11, 2017Inventors: Yu-Hua Hsiao, Hung-Chi Chang, Heng-Lin Yen
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Patent number: 8693190Abstract: A casing structure and a locking mechanism thereof for portable electronic apparatus are disclosed. The casing structure includes an apparatus casing, an electronic device casing, and a door. The electronic device casing is engaged to the apparatus casing in a detachable way. The door is engaged to the apparatus casing in an open-able way to cover an open of the apparatus casing. The locking mechanism is mainly disposed on the apparatus casing and can be operative to lock or unlock the electronic device casing and the door simultaneously. Thereby, a user can quickly detach the electronic device casing and open the door to maintain or replace components in the apparatus casing, which avoids the complicated operation of opening the casing in the prior art.Type: GrantFiled: December 6, 2011Date of Patent: April 8, 2014Assignee: Wistron CorporationInventor: Hung-Chi Chang
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Publication number: 20140029174Abstract: An electronic device includes a base, a cover rotatably connected to the base and a dampening mechanism. The dampening mechanism includes an engaging component secured to the base and a dampening component secured to the cover. When the cover is opened, the engaging component contacts with the dampening component for dampening the movement of the cover relative to the base.Type: ApplicationFiled: April 24, 2013Publication date: January 30, 2014Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: HUNG-CHI CHANG, CHIA-SHOU CHANG, YAO-CHE PENG
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Publication number: 20140022879Abstract: An electronic device for reading and writing information on an optical disc includes a base, a cover, and a decelerating mechanism. The decelerating mechanism can switch between an unresisting position and a resisting position. When the cover is closed, the decelerating mechanism moves from the resisting position to the unresisting position to allow rotation of the optical disc. When the cover is opened, the decelerating mechanism moves to the resisting position for braking and stopping the rotation of the optical disc. A decelerating mechanism in an electronic device is also provided.Type: ApplicationFiled: May 6, 2013Publication date: January 23, 2014Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: YAO-CHE PENG, HUNG-CHI CHANG
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Publication number: 20130033157Abstract: A casing structure and a locking mechanism thereof for portable electronic apparatus are disclosed. The casing structure includes an apparatus casing, an electronic device casing, and a door. The electronic device casing is engaged to the apparatus casing in a detachable way. The door is engaged to the apparatus casing in an open-able way to cover an open of the apparatus casing. The locking mechanism is mainly disposed on the apparatus casing and can be operative to lock or unlock the electronic device casing and the door simultaneously. Thereby, a user can quickly detach the electronic device casing and open the door to maintain or replace components in the apparatus casing, which avoids the complicated operation of opening the casing in the prior art.Type: ApplicationFiled: December 6, 2011Publication date: February 7, 2013Inventor: Hung-Chi Chang
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Patent number: 8018715Abstract: An electronic device includes a display screen and a slide mechanism. The display screen includes first and second display panels, and a housing for receiving the second display panel. The slide mechanism includes two slide rails connected to the housing, and a slide frame connected slidably to the two slide rails and coupled to the second display panel. One of the slide rails has first and second positioning recesses. The slide frame has rollers connected to the slide rails. The slide frame can bring the second display panel to move between an initial position where the second display panel is on a rear face of the first display panel and a retaining unit is retained in the first positioning recess, and an open position where the second display panel is exposed from one side of the housing and the retaining unit is retained in the second positioning recess.Type: GrantFiled: May 21, 2009Date of Patent: September 13, 2011Assignee: Wistron CorporationInventor: Hung-Chi Chang
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Patent number: 7936558Abstract: An electronic device includes first and second screens, and a slide mechanism. The first screen includes a housing and a first display panel. The second screen is disposed behind the housing, and includes a second display panel. The slide mechanism includes two slide rails connected to the housing, and a slide frame connected slidably to the slide rails and coupled to the second display panel. One of the slide rails has first and second positioning recesses. The slide frame can bring the second display panel to move between an initial position where the second display panel is located on a rear face of the housing and a retaining unit is retained in the first positioning recess, and an open position where the second display panel is exposed from one side of the housing and the retaining unit is retained in the second positioning recess.Type: GrantFiled: May 21, 2009Date of Patent: May 3, 2011Assignee: Wistron CorporationInventor: Hung-Chi Chang
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Publication number: 20100124008Abstract: An electronic device includes a display screen and a slide mechanism. The display screen includes first and second display panels, and a housing for receiving the second display panel. The slide mechanism includes two slide rails connected to the housing, and a slide frame connected slidably to the two slide rails and coupled to the second display panel. One of the slide rails has first and second positioning recesses. The slide frame has rollers connected to the slide rails. The slide frame can bring the second display panel to move between an initial position where the second display panel is on a rear face of the first display panel and a retaining unit is retained in the first positioning recess, and an open position where the second display panel is exposed from one side of the housing and the retaining unit is retained in the second positioning recess.Type: ApplicationFiled: May 21, 2009Publication date: May 20, 2010Applicant: WISTRON CORPORATIONInventor: Hung-Chi CHANG
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Publication number: 20100124006Abstract: An electronic device includes first and second screens, and a slide mechanism. The first screen includes a housing and a first display panel. The second screen is disposed behind the housing, and includes a second display panel. The slide mechanism includes two slide rails connected to the housing, and a slide frame connected slidably to the slide rails and coupled to the second display panel. One of the slide rails has first and second positioning recesses. The slide frame can bring the second display panel to move between an initial position where the second display panel is located on a rear face of the housing and a retaining unit is retained in the first positioning recess, and an open position where the second display panel is exposed from one side of the housing and the retaining unit is retained in the second positioning recess.Type: ApplicationFiled: May 21, 2009Publication date: May 20, 2010Applicant: WISTRON CORPORATIONInventor: Hung-Chi CHANG
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Publication number: 20100060528Abstract: The present invention discloses a dual-frequency antenna, which comprises a radiation conductor, an extension conductor, a feeder member, a short-circuit member, and a ground plane. The radiation conductor has a first terminal and a second terminal, which are arranged close to each other but do not contact each other. The extension conductor is connected to the second terminal and disposed along the contour of the first terminal to have a gap between the extension conductor and the first terminal. The feeder member is connected to the radiation conductor. One end of the short-circuit member is connected to the radiation conductor, and the other end is connected to the ground plane. The radiation conductor generates a low-frequency resonant mode and a first high-frequency resonant mode. In the present invention, a single radiation conductor generates two resonant modes to form the operational frequency bands of the dual-frequency antenna.Type: ApplicationFiled: October 16, 2008Publication date: March 11, 2010Applicant: ADVANCED CONNECTEK INC.Inventors: Tsung-Wen Chiu, Hung-Chi Chang, Wen-His Lee, Fu-Ren Hsiao