# US 10,375,840 B2 · 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 10,375,840 B2 - Document ID: US10375840B2 - Status: Granted - Kind: B2 - Application number: 15/500,015 - Filed: 2015-02-05 - Published: 2017-09-07 - Granted: 2019-08-06 - Earliest claimed: 2014-07-28 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Jaeho An; Jongmin Park - Web page: https://patentgrep.com/patent/US10375840B2 ## CPC - G09F 9/35: being liquid crystals (G09F9/302 takes precedence; liquid crystal materials C09K19/00; {liquid crystal panels comprising a number of electrodes in a single cell per se G02F1/13}) - A47F 3/005: {with glass panels} - A47F 3/0434: {Glass or transparent panels} - G06F 3/0421: {by interrupting or reflecting a light beam, e.g. optical touch-screen} - G06F 9/00: Arrangements for program control, e.g. control units (program control for peripheral devices G06F13/10) - 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 23/065: {Advertising in food vending machines} - H05K 5/03: Covers - G09F 2023/0033: {on refrigerated containers} - 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 - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract Disclosed in the present invention is a transparent display device. The transparent display device according to the present invention comprises: a frame having first and second apertures; a transparent display panel disposed on the first aperture of the frame; and a control module, disposed on the second aperture of the frame, for controlling the transparent display panel, wherein the frame is installed to cover the front surface of the door unit of a certain product or is separated from the front surface of the door unit of the certain product, and wherein an extension frame extended from an edge of the frame toward the door unit of the certain product can engage with the side of the edge of the door unit of the certain product. ## Claims ### Claim 1 A transparent display device, comprising: a frame including a first opening and a second opening; a transparent display panel disposed on the first opening of the frame; and a control module configured to control the transparent display panel and disposed on the second opening of the frame, wherein the transparent display device is detachable from a door unit of a prescribed product, wherein the frame comprises: a rim frame located around the first opening and the second opening; and an extending frame extending from the rim frame in a rearward direction, wherein the transparent display device further comprises a fastener configured to detachably couple the extending frame and a lateral surface of the door unit of the prescribed product, and wherein a gap adjusting unit configured to adjust a gap between a rear surface of the transparent display panel and the front surface of the door unit of the prescribed product is disposed in the frame. ### Claim 2 (depends on 1) The transparent display device of claim 1, wherein a size of the first opening of the frame is different from that of the second opening. ### Claim 3 (depends on 1) The transparent display device of claim 1, wherein a transparent cover is disposed in front of the first opening of the frame and wherein a non-transparent cover is disposed in front of the second opening of the frame. ### Claim 4 (depends on 3) The transparent display device of claim 3, wherein a rear surface of the transparent cover comes into contact with a front surface of the transparent display panel. ### Claim 5 (depends on 3) The transparent display device of claim 3, wherein a rear surface of the transparent cover is disposed in a manner of being spaced apart from a front surface of the transparent display panel. ### Claim 6 (depends on 5) The transparent display device of claim 5, wherein a transparent adhesive is disposed between the rear surface of the transparent cover and the transparent display panel. ### Claim 7 (depends on 6) The transparent display device of claim 6, wherein the transparent adhesive is disposed on an edge of the front surface of the transparent display panel. ### Claim 8 (depends on 3) The transparent display device of claim 3, wherein an anti-reflective (AR) coating layer is formed on a front surface of the transparent cover. ### Claim 9 (depends on 1) The transparent display device of claim 1, wherein an airgap is formed between a rear surface of the transparent display panel and the front surface of the door unit of the prescribed product. ### Claim 10 (depends on 1) The transparent display device of claim 1, the gap adjusting unit comprising: an adjusting plate extending from the rim of the frame in a direction of the first opening; and a hinge configured to connect a space between the adjusting plate and the frame and rotationally move the adjusting plate in the direction of the door unit of the prescribed product. ### Claim 11 (depends on 1) The transparent display device of claim 1, wherein a ventilating unit configured to discharge heat generated from the control module into a space between a rear surface of the transparent display panel and the front surface of the door unit of the prescribed product is disposed in the second opening of the frame. ### Claim 12 (depends on 1) The transparent display device of claim 1, the frame, comprising: an inner frame coming into contact with the rim of the door unit of the prescribed product; and an outer frame disposed in a manner of being spaced apart from the inner frame. ### Claim 13 (depends on 12) The transparent display device of claim 12, wherein the inner frame is attached to a rim of a transparent cover covering the first opening and wherein the outer frame is spaced apart from the transparent cover. ### Claim 14 (depends on 13) The transparent display device of claim 13, wherein an infrared touch sensor is disposed between the outer frame and the transparent cover. ### Claim 15 (depends on 12) The transparent display device of claim 12, wherein a wiring connecting the control module and the transparent display panel electrically is disposed between the inner frame and the outer frame. ### Claim 16 (depends on 1) The transparent display device of claim 1, wherein the control module controls the transparent display panel to display information related to goods stored in the door unit of the prescribed product. ### Claim 17 (depends on 1) The transparent display device of claim 1, wherein the control module controls the transparent display panel to simultaneously display a transmissive region capable of transmitting light and a non-transmissive region incapable of transmitting light. ### Claim 18 (depends on 17) The transparent display device of claim 17, wherein the control module controls the transparent display panel to display information related to goods stored in the door unit of the prescribed product on the non-transmissive region. ### Claim 19 (depends on 17) The transparent display device of claim 17, wherein the control module controls the transparent display panel to display information related to goods viewable through the transmissive region on the non-transmissive region.