# US 2026/0212797 A1 · Electronic price tag display control circuit, and content display method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0212797 A1 - Document ID: US20260212797A1 - Status: Published application - Kind: A1 - Application number: 19/135,001 - Filed: 2023-12-04 - Published: 2026-07-23 - Earliest claimed: 2022-12-06 - Assignees: Hema (China) Co., Ltd. - Applicants: Hema (China) Co., Ltd. - Inventors: Enliang Song; Yimin Wu - Web page: https://patentgrep.com/patent/US20260212797A1 ## CPC - G06Q 30/0601: Electronic shopping [e-shopping] - G09G 3/2092: {Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto (suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165)} - G09F 3/208: {Electronic labels, Labels integrating electronic displays} - G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} - G09G 2330/021: Power management, e.g. power saving - G09G 2380/04: Electronic labels - G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS ## Abstract An electronic price tag display control circuit, comprising: a bridge rectifier circuit and an orientation sensing end, wherein when an electronic price tag is in a first orientation, the bridge rectifier circuit and a guide rail power source are in forward connection, the bridge rectifier circuit and the electronic price tag are in forward connection, and two ends of the orientation sensing end are respectively connected to the bridge rectifier circuit and the electronic price tag; and when the electronic price tag is in a second orientation, the bridge rectifier circuit and the guide rail power source are in reverse connection, the bridge rectifier circuit and the electronic price tag are in forward connection, and the two ends of the orientation sensing end are respectively connected to the bridge rectifier circuit and the electronic price tag. ## Claims ### Claim 1 An electronic price tag display control circuit, the circuit comprising: a bridge rectifier circuit and an orientation sensing end; wherein with an electronic price tag in a first orientation, the bridge rectifier circuit is in forward connection with a guide rail power source, the bridge rectifier circuit is in forward connection with the electronic price tag, and two ends of the orientation sensing end are respectively connected to the bridge rectifier circuit and the electronic price tag; and wherein with the electronic price tag in a second orientation, the bridge rectifier circuit is in reverse connection with the guide rail power source, the bridge rectifier circuit is in forward connection with the electronic price tag, and the two ends of the orientation sensing end are respectively connected to the bridge rectifier circuit and the electronic price tag. ### Claim 2 (depends on 1) The circuit of claim 1, wherein that with the electronic price tag in the first orientation, the bridge rectifier circuit is in forward connection with the guide rail power source, and the bridge rectifier circuit is in forward connection with the electronic price tag, comprises: with the electronic price tag in the first orientation, a positive input end of the bridge rectifier circuit is connected to a positive output end of the guide rail power source, a negative input end of the bridge rectifier circuit is connected to a negative output end of the guide rail power source, a positive output end of the bridge rectifier circuit is connected to a positive power source input end of the electronic price tag, and a negative output end of the bridge rectifier circuit is connected to a negative power source input end of the electronic price tag. ### Claim 3 (depends on 1) The circuit of claim 1, wherein that with the electronic price tag in the second orientation, the bridge rectifier circuit is in reverse connection with the guide rail power source, and the bridge rectifier circuit is in forward connection with the electronic price tag, comprises: with the electronic price tag in the second orientation, a positive input end of the bridge rectifier circuit is connected to a negative output end of the guide rail power source, a negative input end of the bridge rectifier circuit is connected to a positive output end of the guide rail power source, a positive output end of the bridge rectifier circuit is connected to a positive power source input end of the electronic price tag, and a negative output end of the bridge rectifier circuit is connected to a negative power source input end of the electronic price tag. ### Claim 4 (depends on 1) The circuit of any one of claim 1, wherein that the two ends of the orientation sensing end are respectively connected to the bridge rectifier circuit and the electronic price tag, comprises: an end of the orientation sensing end is connected to a target input end of the bridge rectifier circuit, and the other end of the orientation sensing end is connected to a logic input end of the electronic price tag. ### Claim 5 (depends on 1) The circuit of claim 1, wherein the bridge rectifier circuit comprises a diode D1, a diode D2, a diode D3, and a diode D4, and wherein a cathode of the diode D1 is connected with an anode of the diode D2, a cathode of the diode D2 is connected with a cathode of the diode D3, an anode of the diode D3 is connected with a cathode of the diode D4, and an anode of the diode D4 is connected with an anode of the diode D1. ### Claim 6 (depends on 5) The circuit of claim 5, wherein a joint between the diode D1 and the diode D2 serves as a positive input end of the bridge rectifier circuit, a joint between the diode D2 and the diode D3 serves as a positive output end of the bridge rectifier circuit, a joint between the diode D3 and the diode D4 serves as a negative input end of the bridge rectifier circuit, and a joint between the diode D4 and the diode D1 serves as a negative output end of the bridge rectifier circuit. ### Claim 7 (depends on 1) The circuit of claim 1, further comprising a voltage stabilizing circuit, wherein an end of the orientation sensing end is connected to a target input end of the bridge rectifier circuit, the other end of the orientation sensing end is connected to an input end of the voltage stabilizing circuit, and an output end of the voltage stabilizing circuit is connected to the electronic price tag. ### Claim 8 (depends on 7) The circuit of claim 7, wherein the voltage stabilizing circuit comprises a current limiting resistor and a clamping diode, and wherein an end of the current limiting resistor is connected to the input end of the voltage stabilizing circuit, the other end of the current limiting resistor is connected to a positive output end of the voltage stabilizing circuit, a cathode of the clamping diode is connected to the positive output end of the voltage stabilizing circuit, and an anode of the clamping diode is connected to a negative output end of the voltage stabilizing circuit. ### Claim 9 A content display method based on an electronic price tag display control circuit, applied to an electronic price tag, comprising: acquiring, in response to a power-on instruction, an orientation sensing signal corresponding to the electronic price tag, wherein different orientation sensing signals correspond to different display contents; and determining a target display content corresponding to the orientation sensing signal, and presenting the target display content on the electronic price tag. ### Claim 10 (depends on 9) The method of claim 9, wherein determining the target display content corresponding to the orientation sensing signal comprises: determining, in a case where the orientation sensing signal is a first orientation sensing signal, the electronic price tag being in a first orientation and a first orientation display content corresponding to the first orientation, and taking the first orientation display content as the target display content; determining, in a case where the orientation sensing signal is a second orientation sensing signal, the electronic price tag being in a second orientation and a second orientation display content corresponding to the second orientation, and taking the second orientation display content as the target display content. ### Claim 11 A content display apparatus based on an electronic price tag display control circuit, comprising: an acquisition module configured to acquire, in response to a power-on instruction, an orientation sensing signal corresponding to an electronic price tag, wherein different orientation sensing signals correspond to different display contents; and a display module configured to determine a target display content corresponding to the orientation sensing signal, and present the target display content on the electronic price tag. ### Claim 12 (depends on 9) A computing device, comprising a memory, a processor, and computer instructions stored on the memory and runnable on the processor, wherein the processor, when executing the computer instructions, implements the steps of the method of claim 9. ### Claim 13 (depends on 9) A non-transitory computer-readable storage medium, which stores computer-executable instructions, wherein the computer instructions, when executed by a processor, implement the steps of the method of claim 9. ### Claim 14 (depends on 2) The circuit of claim 2, wherein that the two ends of the orientation sensing end are respectively connected to the bridge rectifier circuit and the electronic price tag, comprises: an end of the orientation sensing end is connected to a target input end of the bridge rectifier circuit, and the other end of the orientation sensing end is connected to a logic input end of the electronic price tag. ### Claim 15 (depends on 3) The circuit of claim 3, wherein that the two ends of the orientation sensing end are respectively connected to the bridge rectifier circuit and the electronic price tag, comprises: an end of the orientation sensing end is connected to a target input end of the bridge rectifier circuit, and the other end of the orientation sensing end is connected to a logic input end of the electronic price tag. ### Claim 16 (depends on 10, 12) The computing device of claim 12, wherein the processor, when executing the computer instructions, implements the steps of the method of claim 10. ### Claim 17 (depends on 10, 13) The non-transitory computer-readable storage medium of claim 13, wherein the computer instructions, when executed by a processor, implement the steps of the method of claim 10.