# US 12,761,745 B2 · Mouse pad > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,761,745 B2 - Document ID: US12761745B2 - Status: Granted - Kind: B2 - Application number: 19/303,378 - Filed: 2025-08-19 - Published: 2026-07-02 - Granted: 2026-10-13 - Earliest claimed: 2024-12-26 - Assignees: Dexin Corporation - Applicants: Dexin Corporation - Inventors: Ho-Lung Lu; Yi-Chen Liu - Web page: https://patentgrep.com/patent/US12761745B2 ## CPC - G06F 3/0395: {Mouse pads} - G02B 6/0021: {for housing at least a part of the light source, e.g. by forming holes or recesses} - G02B 6/0031: {Reflecting element, sheet or layer} - G02B 6/0083: {Details of electrical connections of light sources to drivers, circuit boards, or the like} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract A mouse pad includes a full flat contact surface, a contact plate, a light guide body, a base, and a light emitting module. The full flat contact surface is arranged on one side surface of the mouse pad. The light guide body is located between the contact plate and the base and has a plurality of light guide holes. The light emitting module includes a circuit board and a plurality of light emitting units. The circuit board is located between the light guide body and the base. The plurality of light emitting units are disposed on the circuit board and are respectively located in the plurality of light guide holes. The light beams emitted are emitted outward from an edge of the light guide body, and a second top surface of each of the light emitting units is shielded by the contact plate. ## Claims ### Claim 1 A mouse pad, comprising: a full flat contact surface arranged on one side surface of the mouse pad, wherein the full flat contact surface is configured to allow a mouse to move to any position thereof; a contact plate, one side surface of the contact plate defining an entirety of the full flat contact surface; a light guide body having two opposite side surfaces that are respectively defined as a first top surface and a first bottom surface, wherein the contact plate is disposed on the first top surface, and the light guide body has a plurality of light guide holes; a base disposed on the first bottom surface of the light guide body, wherein the light guide body is located between the contact plate and the base; and a light emitting module including: a circuit board disposed on the first bottom surface of the light guide body, wherein the circuit board is located between the light guide body and the base; and a plurality of light emitting units disposed on the circuit board, wherein the plurality of light emitting units are respectively located in the plurality of light guide holes, light beams emitted from the plurality of light emitting units are emitted outward from an edge of the light guide body by being guided through the light guide body, and a second top surface of each of the light emitting units is shielded by the contact plate; wherein the light guide body has a light-shielding member receiving groove recessed in the first top surface thereof, the light-shielding member is disposed in the light-shielding member receiving groove, and a depth of the light-shielding member receiving groove is not less than a thickness of the light-shielding member, and wherein an outer surface of the light-shielding member and the first top surface of the light guide body jointly define a first flat surface, and the contact plate is disposed on the first flat surface. ### Claim 2 (depends on 1) The mouse pad according to claim 1, wherein the light-shielding member is disposed on the first top surface of the light guide body and is located between the contact plate and the light guide body, and the light-shielding member is configured to shield the second top surface of each of the plurality of light-emitting units. ### Claim 3 (depends on 1) The mouse pad according to claim 1, wherein the light emitting module further includes a shell that accommodates the circuit board, the base has a notch that accommodates the shell, and the base and the shell jointly define a full flat bottom surface arranged on another side surface of the mouse pad. ### Claim 4 (depends on 3) The mouse pad according to claim 3, wherein the light guide body has a connector notch, the circuit board includes a charging connector that is located in the connector notch, and wherein the shell has a connection port from which the charging connector is exposed. ### Claim 5 (depends on 1) The mouse pad according to claim 1, wherein the first bottom surface of the light guide body has a circuit board receiving groove that accommodates the circuit board, a depth of the circuit board receiving groove is not less than a thickness of the circuit board, and wherein an outer surface of the circuit board and the first bottom surface of the light guide body jointly define a second flat surface, and the base is disposed on the second flat surface. ### Claim 6 (depends on 1) The mouse pad according to claim 1, wherein each of the light guide holes penetrates through the light guide body, and the contact plate includes a blocking area that shields the plurality of light guide holes, and the blocking area is configured to block the plurality of light beams emitted from the plurality of light emitting units. ### Claim 7 (depends on 6) The mouse pad according to claim 6, wherein the blocking area has a light-reflecting structure, and the light-reflecting structure is configured to reflect the plurality of light beams that are emitted from the light emitting units through the plurality of light guide holes, respectively. ### Claim 8 (depends on 6) The mouse pad according to claim 6, wherein the blocking area has a light-absorbing structure, and the light-absorbing structure is configured to absorb the plurality of light beams that are emitted from the light emitting units through the plurality of light guide holes, respectively. ### Claim 9 A mouse pad, comprising: a full flat contact surface arranged on one side surface of the mouse pad, wherein the full flat contact surface is configured to allow a mouse to move to any position thereof; a contact plate, one side surface of the contact plate defining an entirety of the full flat contact surface; a light guide body having two opposite side surfaces that are respectively defined as a first top surface and a first bottom surface, wherein the contact plate is disposed on the first top surface, and the light guide body has a plurality of light guide holes; a base disposed on the first bottom surface of the light guide body, wherein the light guide body is located between the contact plate and the base; and a light emitting module including: a circuit board disposed in a light-shielding member receiving groove of the first top surface of the light guide body, the circuit board located between the contact plate and the light guide body, wherein a depth of the light-shielding member receiving groove is not less than a thickness of the circuit board; and a plurality of light emitting units disposed on the circuit board, wherein the plurality of light emitting units are respectively located in the plurality of light guide holes, light beams emitted from the plurality of light emitting units are emitted outward from an edge of the light guide body by being guided through the light guide body. ### Claim 10 (depends on 9) The mouse pad according to claim 9, wherein each of the light guide holes penetrates through the light guide body. ### Claim 11 (depends on 9) The mouse pad according to claim 9, wherein the light emitting module further includes a shell that accommodates the circuit board, the base has a notch that accommodates the shell, and the shell is configured to shield the light beams emitted from the second top surface of the plurality of light emitting units. ### Claim 12 (depends on 11) The mouse pad according to claim 11, wherein the base and the shell jointly define a full flat bottom surface arranged on another side surface of the mouse pad. ### Claim 13 (depends on 11) The mouse pad according to claim 11, wherein the light guide body has a connector notch, the circuit board includes a charging connector that is located in the connector notch, and wherein the shell has a connection port from which the charging connector is exposed.