Patents by Inventor Zheng-Hong LAI
Zheng-Hong LAI 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: 20240132762Abstract: A covering structure includes at least one element, a gas impermeable film and an adhesive layer. The gas impermeable film covers the at least one element. The adhesive layer is adhered between the at least one element and the gas impermeable film, and the adhesive layer has a perforation pattern, a perforation repair pattern, or a combination thereof. A method of forming a covering structure is also provided, which includes: making a surface of an adhesive layer with a perforation pattern facing one of at least one element and a gas impermeable film to form a first structure; performing a first gas suction treatment on the first structure; making another surface of the adhesive layer of the first structure facing the other thereof to form a second structure; and performing a second gas suction treatment on the second structure.Type: ApplicationFiled: December 9, 2022Publication date: April 25, 2024Inventors: Zheng-Hong Lai, Chin-Lung Chan, Chih-Ho Hsu
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Patent number: 11735382Abstract: A keyboard device includes a base plate, a plurality of key structures, a floating frame and a cover layer. The key structures are disposed over the base plate, and each of the key structures has a keycap. The floating frame is disposed over and separated from the base plate. The floating frame has a plurality of openings, and the key structures are disposed in the openings, respectively. The cover layer covers the keycaps of the key structures and the floating frame and is in direct or indirect contact with an upper surface of the keycap of each of the key structures and an upper surface of the floating frame. When the keycap of one of the key structures and the cover layer thereover are pressed to bottom, the floating frame surrounding the one of the key structures is pulled by the cover layer and shifted.Type: GrantFiled: September 30, 2022Date of Patent: August 22, 2023Assignee: PRIMAX ELECTRONICS LTD.Inventors: Zheng-Hong Lai, Che-Wei Lee, Chin-Lung Chan, Chih-Ho Hsu
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Publication number: 20230245843Abstract: A keyswitch structure includes a switch and a multilayer structure above the switch. The multilayer structure includes an inner flexible layer, a rigid light-transmissive cover sheet, and a flexible light-transmissive layer. The inner flexible layer has a keycap portion and a connection portion extending outward from the keycap portion. The keycap portion is located above the switch and forms a spatial character structure. The rigid light-transmissive cover sheet is disposed on the keycap portion and covers the spatial character structure. The flexible light-transmissive layer covers the inner flexible layer and the rigid light-transmissive cover sheet. A keyboard includes the keyswitch structure and a device casing carrying the keyswitch structure. The multilayer structure is fixed to the device casing.Type: ApplicationFiled: April 10, 2023Publication date: August 3, 2023Applicant: DARFON ELECTRONICS CORP.Inventors: Zheng-Hong Lai, Chih-Ho Hsu, Chin-Lung Chan
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Patent number: 11367582Abstract: A keyswitch includes a base, a keycap, a lift mechanism, a touch circuitry portion, and an outer covering layer. The keycap is connected to the base through the lift mechanism so as to move up and down relative to the base. The touch circuitry portion is disposed on the top surface of the keycap. A connection circuitry portion extends from the touch circuitry portion. The outer covering layer covers the touch circuitry portion and at least a portion of the connection circuitry portion. Thereby, the keyswitch can provide touch function without excessively increasing the whole thickness of the keyswitch. A keyboard includes a plurality of the keyswitches and therefore can provide touch function without excessively increasing the whole thickness of the keyboard.Type: GrantFiled: March 4, 2020Date of Patent: June 21, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Che-Wei Lee, Chih-Ho Hsu, Zheng-Hong Lai
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Publication number: 20220122788Abstract: A keyswitch structure includes a switch and a multilayer structure above the switch. The multilayer structure includes an inner flexible layer, a rigid light-transmissive cover sheet, and a flexible light-transmissive layer. The inner flexible layer has a keycap portion and a connection portion extending outward from the keycap portion. The keycap portion is located above the switch and forms a spatial character structure. The rigid light-transmissive cover sheet is disposed on the keycap portion and covers the spatial character structure. The flexible light-transmissive layer covers the inner flexible layer and the rigid light-transmissive cover sheet. A keyboard includes the keyswitch structure and a device casing carrying the keyswitch structure. The multilayer structure is fixed to the device casing.Type: ApplicationFiled: May 12, 2021Publication date: April 21, 2022Inventors: Zheng-Hong Lai, Chih-Ho Hsu, Chin-Lung Chan
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Patent number: 11289288Abstract: A waterproof film includes a film reinforcing layer, a light shielding layer, a texture layer, and a pattern. The light shielding layer is combined under the film reinforcing layer and forms a plurality of protruding structures cooperatively with the film reinforcing layer by a hot pressing process. The texture layer is attached to a release film and then formed on a top surface and a side surface of each protruding structure after a hot pressing process is performed and the release film is then peeled. The pattern is formed on the texture layer or the light shielding layer.Type: GrantFiled: November 24, 2020Date of Patent: March 29, 2022Assignee: DARFON ELECTRONICS CORP.Inventors: Zheng-Hong Lai, Chih-Ho Hsu, Chin-Lung Chan, Che-Wei Lee, Chang-En Sun
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Publication number: 20210225604Abstract: A keyswitch includes a base, a keycap, a lift mechanism, a touch circuitry portion, and an outer covering layer. The keycap is connected to the base through the lift mechanism so as to move up and down relative to the base. The touch circuitry portion is disposed on the top surface of the keycap. A connection circuitry portion extends from the touch circuitry portion. The outer covering layer covers the touch circuitry portion and at least a portion of the connection circuitry portion. Thereby, the keyswitch can provide touch function without excessively increasing the whole thickness of the keyswitch. A keyboard includes a plurality of the keyswitches and therefore can provide touch function without excessively increasing the whole thickness of the keyboard.Type: ApplicationFiled: March 4, 2020Publication date: July 22, 2021Inventors: Che-Wei Lee, Chih-Ho Hsu, Zheng-Hong Lai
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Publication number: 20210193411Abstract: A waterproof film includes a film reinforcing layer, a light shielding layer, a texture layer, and a pattern. The light shielding layer is combined under the film reinforcing layer and forms a plurality of protruding structures cooperatively with the film reinforcing layer by a hot pressing process. The texture layer is attached to a release film and then formed on a top surface and a side surface of each protruding structure after a hot pressing process is performed and the release film is then peeled. The pattern is formed on the texture layer or the light shielding layer.Type: ApplicationFiled: November 24, 2020Publication date: June 24, 2021Inventors: Zheng-Hong Lai, Chih-Ho Hsu, Chin-Lung Chan, Che-Wei Lee, Chang-En Sun
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Patent number: 10978261Abstract: A method for fabricating a keyboard covering film is provided. The method includes steps of: coating a transparent plastic material on an upper surface of a fabric layer before the transparent plastic material is cured; treating the fabric layer and the transparent plastic material by a hot press process to cure the transparent plastic material to form a transparent layer and to make the transparent layer and the fabric layer jointly form a number of keycap receiving sections; forming a mask layer on a lower surface of the fabric layer; removing a portion of the mask layer and a portion of the fabric layer located within each of the keycap receiving sections to form a number of hollow patterns.Type: GrantFiled: June 10, 2020Date of Patent: April 13, 2021Assignee: DARFON ELECTRONICS CORP.Inventors: Zheng-Hong Lai, Chih-Ho Hsu, Che-Wei Lee, Jin-Long Chan, Yuan-bao Chen, Chang-En Sun
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Publication number: 20200303141Abstract: A method for fabricating a keyboard covering film is provided. The method includes steps of: coating a transparent plastic material on an upper surface of a fabric layer before the transparent plastic material is cured; treating the fabric layer and the transparent plastic material by a hot press process to cure the transparent plastic material to form a transparent layer and to make the transparent layer and the fabric layer jointly form a number of keycap receiving sections; forming a mask layer on a lower surface of the fabric layer; removing a portion of the mask layer and a portion of the fabric layer located within each of the keycap receiving sections to form a number of hollow patterns.Type: ApplicationFiled: June 10, 2020Publication date: September 24, 2020Inventors: Zheng-Hong LAI, Chih-Ho HSU, Che-Wei LEE, Jin-Long CHAN, Yuan-bao CHEN, Chang-En SUN
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Patent number: 10770246Abstract: A keyboard covering film including a fabric layer, a transparent layer and a mask layer is disclosed. The transparent layer is disposed on an upper surface of the fabric layer. The mask layer is disposed on a lower surface of the fabric layer. The transparent layer and the fabric layer are treated by a hot pressing process to form a number of keycap receiving sections. The keycap receiving sections, the fabric layer and the mask layer are located on the same side of the transparent layer. The fabric layer and the mask layer have hollow patterns within the keycap receiving sections, wherein the hollow patterns are formed by removing a portion of the fabric layer and the mask layer.Type: GrantFiled: May 4, 2018Date of Patent: September 8, 2020Assignee: DARFON ELECTRONICS CORP.Inventors: Zheng-Hong Lai, Chih-Ho Hsu, Che-Wei Lee, Jin-Long Chan, Yuan-bao Chen, Chang-En Sun
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Publication number: 20180323021Abstract: A keyboard covering film including a fabric layer, a transparent layer and a mask layer is disclosed. The transparent layer is disposed on an upper surface of the fabric layer. The mask layer is disposed on a lower surface of the fabric layer. The transparent layer and the fabric layer are treated by a hot pressing process to form a number of keycap receiving sections. The keycap receiving sections, the fabric layer and the mask layer are located on the same side of the transparent layer. The fabric layer and the mask layer have hollow patterns within the keycap receiving sections, wherein the hollow patterns are formed by removing a portion of the fabric layer and the mask layer.Type: ApplicationFiled: May 4, 2018Publication date: November 8, 2018Inventors: Zheng-Hong LAI, Chih-Ho HSU, Che-Wei LEE, Jin-Long CHAN, Yuan-bao CHEN, Chang-En SUN