# US 12,008,186 B2 · Touch panel assembly and electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,008,186 B2 - Document ID: US12008186B2 - Status: Granted - Kind: B2 - Application number: 17/549,825 - Filed: 2021-12-13 - Published: 2022-09-29 - Granted: 2024-06-11 - Earliest claimed: 2021-03-29 - Assignees: Lenovo (Beijing) Limited - Applicants: Lenovo (Beijing) Limited - Inventors: Chun Ren - Web page: https://patentgrep.com/patent/US12008186B2 ## CPC - G06F 3/04144: {using an array of force sensing means (position sensing using the local deformation of sensor cells G06F3/0447)} - G06F 3/03547: {Touch pads, in which fingers can move on a surface} - H03K 17/9618: {using a plurality of detectors, e.g. keyboard} - H03K 17/965: Switches controlled by moving an element forming part of the switch - G06F 3/0414: {using force sensing means to determine a position} - H03K 2217/96023: Details of electro-mechanic connections between different elements, e.g.: sensing plate and integrated circuit containing electronics - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H03K: PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M) ## Abstract The present disclosure provides a touch panel assembly and an electronic device. The touch panel assembly includes a touch panel, a touch switch, and a transmission assembly. The touch panel receives a touch operation from a user. The touch switch is positioned below the touch panel and located at a center position of the touch panel. The transmission assembly drives the touch panel to ascend and descend along a vertical direction synchronously and across an entire touch surface, and the touch panel activates the touch switch while descending. When subject to a given force, any touch areas of the touch panel can be pressed down, the touch panel stably moves synchronously and across its entire touch surface, so as to increase product stability. The touch panel assembly can achieve technical effects of a uniform touch feedback and the touch panel's stable movement, and so as to effectively improve user experiences. ## Claims ### Claim 1 A touch panel assembly, comprising: a touch panel, configured to receive a touch operation from a user; a touch switch supported on a PCB board, positioned below the touch panel and corresponding to a center position of the touch panel; a transmission assembly, configured to drive the touch panel to ascend and descend along a vertical direction, wherein the touch panel activates the touch switch while descending, and the PCB board is disposed between the touch panel and the transmission assembly; and a frame assembly, wherein the frame assembly includes a first frame to support the touch panel and a second frame positioned at a side of the first frame that is further away from the touch panel, and wherein the transmission assembly connects the first frame and the second frame such that the touch panel moves with the first frame. ### Claim 2 (depends on 1) The touch panel assembly of claim 1, wherein the transmission assembly includes at least one balance shaft, the at least one balance shaft includes a first shaft body rotatably connected to the first frame and a second shaft body rotatably connected to the second frame. ### Claim 3 (depends on 2) The touch panel assembly of claim 2, wherein the at least one balance shaft includes a first balance shaft positioned along a length direction of the first frame and a second balance shaft positioned along a width direction of the first frame. ### Claim 4 (depends on 2) The touch panel assembly of claim 2, wherein the first shaft body and the second shaft body are integral to each other. ### Claim 5 (depends on 2) The touch panel assembly of claim 2, wherein the second shaft body is positioned with an angle relative to the first shaft body. ### Claim 6 (depends on 2) The touch panel assembly of claim 2, wherein the second shaft body is shorter in length than the first shaft body. ### Claim 7 (depends on 1) The touch panel assembly of claim 1, wherein the transmission assembly includes a first bracket and a second bracket, two opposing ends of the first bracket are respectively connected to the first frame and the second frame, and two opposing ends of the second bracket are respectively connected to the first frame and the second frame. ### Claim 8 (depends on 7) The touch panel assembly of claim 7, wherein a portion of the first bracket is received through the second bracket so as to reduce lateral movement between the first frame and the second frame. ### Claim 9 (depends on 1) The touch panel assembly of claim 1, wherein the first frame is provided with at least one first clamping portion, the second frame is provided with at least one second clamping portion to engage with the at least one first clamping portion and hence to limit movement of the first frame. ### Claim 10 (depends on 9) The touch panel assembly of claim 9, wherein the at least one first clamping portion includes two first clamping portions, and the at least one second clamping portion is positioned between the two first clamping portions along a lateral direction, so as to limit movement of the first frame relative to the second frame along the lateral direction. ### Claim 11 (depends on 10) The touch panel assembly of claim 10, wherein the lateral direction is a length direction or a width direction. ### Claim 12 (depends on 1) The touch panel assembly of claim 1, wherein a side of the first frame protrudes downward to form a first limiting portion, a side of the second frame protrudes upward to form a second limiting portion, and wherein the second limiting portion is positioned above the first limiting portion to limit upward movement of the first frame. ### Claim 13 (depends on 1) The touch panel assembly of claim 1, wherein: the touch switch is located at a second side of the first frame that is opposite to the first side of the first frame and close to the touch panel. ### Claim 14 A touch panel assembly, comprising: a touch panel, configured to receive a touch operation from a user; a touch switch supported on a PCB board, positioned below the touch panel and corresponding to a center position of the touch panel; a frame assembly, wherein the frame assembly includes a first frame to support the touch panel and a second frame positioned at a side of the first frame that is further away from the touch panel, and wherein the transmission assembly connects the first frame and the second frame such that the touch panel moves with the first frame; and a transmission assembly, configured to drive the touch panel to ascend and descend along a vertical direction, wherein the transmission assembly includes at least one balance shaft, the at least one balance shaft includes a first shaft body rotatably connected to the first frame and a second shaft body rotatably connected to the second frame, and the PCB board is disposed between the touch panel and the transmission assembly. ### Claim 15 (depends on 14) The touch panel assembly of claim 14, wherein the at least one balance shaft includes a first balance shaft positioned along a length direction of the first frame and a second balance shaft positioned along a width direction of the first frame. ### Claim 16 (depends on 14) The touch panel assembly of claim 14, wherein the transmission assembly includes a first bracket and a second bracket, two opposing ends of the first bracket are respectively connected to the first frame and the second frame, and two opposing ends of the second bracket are respectively connected to the first frame and the second frame. ### Claim 17 (depends on 14) The touch panel assembly of claim 14, wherein the first frame is provided with at least one first clamping portion, the second frame is provided with at least one second clamping portion to engage with the at least one first clamping portion and hence to limit movement of the first frame. ### Claim 18 (depends on 17) The touch panel assembly of claim 17, wherein the at least one first clamping portion includes two first clamping portions, and the at least one second clamping portion is positioned between the two first clamping portions along a lateral direction, so as to limit movement of the first frame relative to the second frame along the lateral direction. ### Claim 19 An electronic device, comprising: a touch panel assembly, wherein the touch panel assembly includes: a touch panel, configured to receive a touch operation from a user; a touch switch supported on a PCB board, positioned below the touch panel and corresponding to a center position of the touch panel; a frame assembly, wherein the frame assembly includes a first frame to support the touch panel and a second frame positioned at a side of the first frame that is further away from the touch panel, and wherein the transmission assembly connects the first frame and the second frame such that the touch panel moves with the first frame; and a transmission assembly, configured to drive the touch panel to ascend and descend along a vertical direction, wherein the transmission assembly includes at least one balance shaft, the at least one balance shaft includes a first shaft body rotatably connected to the first frame and a second shaft body rotatably connected to the second frame, and the PCB board is disposed between the touch panel and the transmission assembly.