# US 10,374,019 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 10,374,019 B2 - Document ID: US10374019B2 - Status: Granted - Kind: B2 - Application number: 16/130,806 - Filed: 2018-09-13 - Published: 2019-01-10 - Granted: 2019-08-06 - Earliest claimed: 2015-11-11 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Byung Han Yoo; Young Chan Kim; Kyung Tea Park; Yong-Suk Yeo - Web page: https://patentgrep.com/patent/US10374019B2 ## CPC - H10K 59/60: OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes - H10K 59/878: {comprising reflective means} - H10K 59/88: Dummy elements, i.e. elements having non-functional features - H10K 2102/3031: {Two-side emission, e.g. transparent OLEDs [TOLED]} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device includes: a display panel including a display area for displaying an image; a window provided on an upper portion of the display panel; a protection plate provided on a lower portion of the display panel; and a photosensor provided at least one of between the display panel and the window and between the display panel and the protection plate, wherein the photosensor includes a shutter for controlling light emitted by the display panel to transmit through the window or the protection plate, and a photodetector for receiving the light reflected after transmitting through the window or the protection plate. ## Claims ### Claim 1 A display device comprising: a display panel including a display area for displaying an image and emitting light; a window provided on an upper portion of the display panel; a protection plate provided on a lower portion of the display panel; a photosensor provided at least one of between the display panel and the window and between the display panel and the protection plate; and a reflective layer disposed between the display panel and the photosensor and having an opening that controllably opens and closes to reflect or transmit the light emitted from the display panel, wherein the photosensor receives a portion of the light reflected after transmitting through the opening of the reflective layer and the window or the protection plate. ### Claim 2 (depends on 1) The display device of claim 1, wherein the photosensor is disposed on a position corresponding to the display area between the display panel and the protection plate. ### Claim 3 (depends on 2) The display device of claim 2, wherein the display panel includes an organic light-emitting diode of a double-side emission type provided in the display area. ### Claim 4 (depends on 1) The display device of claim 1, wherein the display panel further includes a peripheral area disposed on a periphery of the display area, and the photosensor is disposed on a position corresponding to the peripheral area between the display panel and the protection plate. ### Claim 5 (depends on 4) The display device of claim 4, wherein the display panel includes a dummy pixel provided in the peripheral area. ### Claim 6 (depends on 5) The display device of claim 5, wherein the dummy pixel is an organic light-emitting diode of a bottom-emission type. ### Claim 7 (depends on 1) The display device of claim 1, wherein the display panel further includes a peripheral area disposed on a periphery of the display area, and the photosensor is disposed on a position corresponding to the peripheral area between the display panel and the window. ### Claim 8 (depends on 7) The display device of claim 7, wherein the display panel includes a dummy pixel provided in the peripheral area. ### Claim 9 (depends on 8) The display device of claim 8, wherein the dummy pixel is an organic light-emitting diode of a top-emission type. ### Claim 10 (depends on 1) The display device of claim 1, wherein the protection plate includes a light transmitting window on a position corresponding to the photosensor. ### Claim 11 (depends on 1) The display device of claim 1, further comprising: first and second blocking plates attached to the reflective layer and controllably opened and closed to open and close the opening of the reflective layer. ### Claim 12 (depends on 11) The display device of claim 11, wherein the first and second blocking plates are bent. ### Claim 13 (depends on 11) The display device of claim 11, wherein the first and second blocking plates are made of a conductive material. ### Claim 14 (depends on 11) The display device of claim 11, further comprising: an induction electrode provided on at least one of an upper side and a lower side of the first and second blocking plates and generating an electric force. ### Claim 15 (depends on 11) The display device of claim 11, wherein the reflective layer comprises a first reflective layer and a second reflective layer provided on the first and second blocking plates, respectively. ### Claim 16 (depends on 15) The display device of claim 15, wherein the reflective layer is made of a metal selected from silver (Ag), aluminum (Al), and chromium (Cr), or an alloy thereof. ### Claim 17 (depends on 11) The display device of claim 11, wherein a first end of the first and second blocking plates is inclined at a predetermined angle, and a second end of the first and second blocking plates is made of a shape corresponding to the first end. ### Claim 18 (depends on 11) The display device of claim 11, wherein a first end of the first and second blocking plates is provided to have a step shape, and a second end of the first and second blocking plates is made of a shape corresponding to the first end.