# US 2018/0025679 A1 · Transparent display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0025679 A1 - Document ID: US20180025679A1 - Status: Published application - Kind: A1 - Application number: 15/547,287 - Filed: 2015-02-06 - Published: 2018-01-25 - Earliest claimed: 2015-01-29 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Jongmin PARK; Jaeho AN; Hyeonjun KIM - Web page: https://patentgrep.com/patent/US20180025679A1 ## CPC - G09F 27/00: Combined visual and audible advertising or displaying, e.g. for public address - A47F 3/001: {Devices for lighting, humidifying, heating, ventilation} - A47F 3/005: {with glass panels} - A47F 3/0434: {Glass or transparent panels} - G09F 9/00: Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) - G09F 9/30: in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) - G09F 23/00: Advertising on or in specific articles, e.g. ashtrays, letter-boxes (on or in vehicles G09F21/00) - G09F 23/04: illuminated - G09F 23/06: the advertising matter being combined with articles for restaurants, shops or offices (on paper articles G09F23/10) - G09F 27/005: {Signs associated with a sensor} - G09G 3/2096: {Details of the interface to the display terminal specific for a flat panel (suitable for both CRT and flat panel G09G5/006; specific for a CRT G09G1/167)} - H05K 5/03: Covers - G09F 2023/0033: {on refrigerated containers} - G09G 2320/0626: for control of overall brightness - G09G 2330/02: Details of power systems and of start or stop of display operation - G09G 2354/00: Aspects of interface with display user - G09G 2380/06: Remotely controlled electronic signs other than labels - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - A47F: SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS - 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) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A transparent display device attached to a predetermined product, displaying article information in the product, advertisement, etc. is disclosed. The transparent display device comprises a frame including an opening; a transparent display panel arranged at the opening; and a control module arranged in an area of the frame to control the transparent display panel, wherein the frame in which the transparent display panel and the control module are arranged is provided to cover a front surface of a predetermined product so as to form a door unit of the predetermined product, and is rotatably moved when the inside of the predetermined product is opened and closed. ## Claims ### Claim 1 A transparent display device comprising: a frame including an opening; a transparent display panel arranged at the opening; and a control module arranged in an area of the frame to control the transparent display panel, wherein the frame in which the transparent display panel and the control module are arranged is provided to cover a front surface of a predetermined product so as to form a door unit of the predetermined product, and is rotatably moved when the inside of the predetermined product is opened and closed. ### Claim 2 (depends on 1) The transparent display device according to claim 1, wherein the frame includes a front door frame having a first opening, and a rear door frame having a second opening, connected to the front door frame. ### Claim 3 (depends on 2) The transparent display device according to claim 2, wherein the first opening has an area different from that of the second opening. ### Claim 4 (depends on 2) The transparent display device according to claim 2, wherein the front door frame includes an extension frame extended toward the rear door frame and fastened into the rear door frame, the extension frame being provided with a line space through which a connection line passes. ### Claim 5 (depends on 2) The transparent display device according to claim 2, wherein the rear door frame is fastened into a buffer member arranged in a direction of the predetermined product. ### Claim 6 (depends on 2) The transparent display device according to claim 2, wherein the rear door frame includes at least one light source module arranged at one side facing the second opening. ### Claim 7 (depends on 1) The transparent display device according to claim 1, further comprising: a first transparent cover arranged at a first interval from a front surface of the transparent display panel; and a second transparent cover arranged at a second interval from a rear surface of the transparent display panel. ### Claim 8 (depends on 7) The transparent display device according to claim 7, wherein the first interval and the second interval are different from each other. ### Claim 9 (depends on 7) The transparent display device according to claim 7, wherein a first spacer for controlling an interval between the first and second transparent covers and an interval between the first transparent cover and the transparent display panel is arranged at corner areas of the first and second transparent covers, and a second spacer for controlling an interval between the second transparent cover and the transparent display panel is arranged at the corner area of the second transparent cover. ### Claim 10 (depends on 1) The transparent display device according to claim 1, wherein the control module includes: a first interface unit for receiving a signal from an external device; a second interface unit for receiving a signal from a remote controller; and a controller for controlling the transparent display panel in accordance with the signals received from the first and second interface units. ### Claim 11 (depends on 10) The transparent display device according to claim 10, wherein the control module further includes an audio output unit for outputting an audio signal processed from the controller. ### Claim 12 (depends on 1) The transparent display device according to claim 1, wherein the control module controls luminance of the transparent display panel when the frame is rotatably moved, so as to open and close the inside of the predetermined product. ### Claim 13 (depends on 1) The transparent display device according to claim 1, wherein the control module controls the transparent display panel to display information related to articles kept in the predetermined product. ### Claim 14 (depends on 1) The transparent display device according to claim 1, wherein the control module controls the transparent display panel to simultaneously display a transmissive area where light is transmitted and a non-transmissive area where light is not transmitted. ### Claim 15 (depends on 14) The transparent display device according to claim 14, wherein the control module controls the transparent display panel to display information, which is related to articles kept in the predetermined product, on the non-transmissive area. ### Claim 16 (depends on 14) The transparent display device according to claim 14, wherein the control module controls the transparent display panel to display information, which is related to articles seen through the transmissive area among the articles kept in the predetermined product, on the non-transmissive area. ### Claim 17 (depends on 1) The transparent display device according to claim 1, further comprising a cover unit that includes a power supply for supplying a power source to the transparent display panel and the control module. ### Claim 18 (depends on 17) The transparent display device according to claim 17, wherein the cover unit is arranged to be spaced apart from the frame at a certain interval and is provided to a lower end of the predetermined product. ### Claim 19 (depends on 17) The transparent display device according to claim 17, wherein the cover unit is fixed to the lower end of the predetermined product when the frame is rotatably moved, so as to open and close the inside of the predetermined product. ### Claim 20 (depends on 17) The transparent display device according to claim 17, wherein the cover unit further comprises an audio output unit for outputting the audio signal processed from the controller.