# US 11,307,613 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,307,613 B2 - Document ID: US11307613B2 - Status: Granted - Kind: B2 - Application number: 17/099,377 - Filed: 2020-11-16 - Published: 2021-03-11 - Granted: 2022-04-19 - Earliest claimed: 2019-01-16 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Jae Young Yu; Yong Gi Ko; Bon Joo Koo; Yun Ha Kim; Jae Chun Park; Nam Seok Baik; Mikiya Itakura; Hyoung Jin Lee; Dae Guen Choi; Sung Chul Choi - Web page: https://patentgrep.com/patent/US11307613B2 ## CPC - G06F 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position} - G06F 1/1641: {the display being formed by a plurality of foldable display components (G06F1/1647 takes precedence)} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G06F 1/1656: {Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203)} - G06F 1/1681: {Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683)} - H04M 1/0216: {Foldable in one direction, i.e. using a one degree of freedom hinge} - H04M 1/0268: {including a flexible display panel} - H10K 2102/311: {Flexible OLED} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device is provided. The display device includes a display panel including a folding region, first and second non-folding regions at opposite sides of the folding region; a first support plate below the display panel to overlap the first non-folding region and to partially overlap the folding region; a second support plate below the display panel to overlap the second non-folding region and to partially overlap the folding region; a first plate coupling film between the display panel and the first support plate to overlap the first non-folding region; a second plate coupling film between the display panel and the second support plate to overlap the second non-folding region; a first step compensating member between the display panel and the first support plate to overlap the folding region, apart from the first plate coupling film, and including a light shielding layer; and a second step compensating member between the display panel and the second support plate to overlap the folding region, apart from the second plate coupling film, and including a light shielding layer. ## Claims ### Claim 1 A display device comprising: a display panel including a folding region, a first non-folding region disposed at a side of the folding region, and a second non-folding region disposed at another other side of the folding region; a first support plate disposed below the display panel to overlap the first non-folding region and to partially overlap the folding region; a second support plate disposed below the display panel to overlap the second non-folding region and to partially overlap the folding region; a first coupling layer disposed between the display panel and the first support plate, wherein the first coupling layer couples the display panel and the first support plate to each other; a second coupling layer disposed between the display panel and the second support plate, wherein the second coupling layer couples the display panel and the second support plate to each other; a first step compensating member disposed between the display panel and the first support plate to overlap the folding region, and spaced apart from the first coupling layer, wherein the first step compensating member includes a first light shielding layer; and a second step compensating member disposed between the display panel and the second support plate to overlap the folding region, and spaced apart from the second coupling layer, wherein the second step compensating member includes a second light shielding layer. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first coupling layer is disposed to overlap the first non-folding region, and the second coupling layer is disposed to overlap the second non-folding region. ### Claim 3 (depends on 2) The display device of claim 2, further comprising: a lower cover panel disposed between the display panel and the first coupling layer to overlap the folding region, the first non-folding region, and the second non-folding region. ### Claim 4 (depends on 3) The display device of claim 3, wherein, when the display device is folded, the first non-folding region and the second non-folding region are disposed to overlap each other. ### Claim 5 (depends on 4) The display device of claim 4, wherein, when the display device is folded: the first step compensating member is separated from the lower cover panel and attached to the first support plate; and the second step compensating member is separated from the lower cover panel and attached to the second support plate. ### Claim 6 (depends on 2) The display device of claim 2, wherein a separation distance between the first coupling layer and the second coupling layer is in a range of 7 millimeters to 8 millimeters. ### Claim 7 (depends on 6) The display device of claim 6, wherein a separation distance between the first coupling layer and a first side surface of the first step compensating member facing an inner side surface of the first coupling layer is in a range of 300 micrometers to 800 micrometers, and a separation distance between the second coupling layer and a first side surface of the second step compensating member facing an inner side surface of the second coupling layer is in a range of 300 micrometers to 800 micrometers. ### Claim 8 (depends on 7) The display device of claim 7, wherein a separation distance between a second side surface of the first step compensating member facing the first side surface thereof and a second side surface of the second step compensating member facing the first side surface thereof is in a range of 0.2 millimeter to 0.4 millimeter. ### Claim 9 A display device comprising: a display panel including a folding region, a first non-folding region disposed at a side of the folding region, and a second non-folding region disposed at another side of the folding region; a first support plate disposed below the display panel to overlap the first non-folding region and to partially overlap the folding region; a second support plate disposed below the display panel to overlap the second non-folding region and to partially overlap the folding region; a first coupling layer disposed between the display panel and the first support plate, wherein the first coupling layer couples the display panel and the first support plate to each other; a second coupling layer disposed between the display panel and the second support plate, wherein the second coupling layer couples the display panel and the second support plate to each other; and compensating member disposed between the display panel and the first support plate and the second support plate to overlap the folding region, and spaced apart from the first coupling layer and the second coupling layer, wherein the step compensating member is integrally formed as a single body, and includes a light shielding layer. ### Claim 10 (depends on 9) The display device of claim 9, wherein a first coupling layer is disposed to overlap the first non-folding region, and a second coupling layer is disposed to overlap the second non-folding region. ### Claim 11 (depends on 9) The display device of claim 9, wherein the first layer has a lyophobic characteristic with respect to the second layer, and wherein the first layer includes at least one of a polyimide, a polyamic acid, and a polysiloxane.