# US 2019/0173034 A1 · Light emitting display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0173034 A1 - Document ID: US20190173034A1 - Status: Published application - Kind: A1 - Application number: 16/273,694 - Filed: 2019-02-12 - Published: 2019-06-06 - Earliest claimed: 2016-07-15 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Hyun Deok IM; Jong Hyuk KANG; Dae Hyun KIM; Joo Yeol LEE; Chi O CHO; Hyun Min CHO - Web page: https://patentgrep.com/patent/US20190173034A1 ## CPC - H10W 90/00: Package configurations - H10K 10/462: {Insulated gate field-effect transistors [IGFETs]} - H10K 50/115: comprising active inorganic nanostructures, e.g. luminescent quantum dots - H10K 50/30: Organic light-emitting transistors - F21Y 2107/00: Light sources with three-dimensionally disposed light-generating elements - H10H 20/036: {of packages} - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS ## Abstract A light emitting device includes a plurality of unit light emitting regions on a substrate. At least one of the unit light emitting regions includes at least one pair of first and second electrodes that are spaced apart, at least one first bar-type LED in a first layer on the substrate, and at least one second bar-type LED in a second layer on the substrate. At least one of the first bar-type LED or the second bar-type LED is electrically connected between the first electrode and the second electrode. ## Claims ### Claim at position 1 -20. (canceled) ### Claim 21 A light emitting display device, comprising: a first electrode and a second electrode on a substrate; a first LED on the first electrode and the second electrode; a third electrode directly contacting the first LED and the first electrode; and a fourth electrode directly contacting the first LED and the second electrode. ### Claim 22 (depends on 21) The light emitting display device of claim 21, wherein: the third electrode contacts a first end of the first LED and a first portion of an upper surface of the first LED located on the first end, in a cross-sectional view; and the fourth electrode contacts a second end of the first LED and a second portion of the upper surface of the first LED located on the second end, in a cross-sectional view. ### Claim 23 (depends on 22) The light emitting display device of claim 22, wherein the first end and the second end are opposite to each other in a longitudinal direction of the first LED. ### Claim 24 (depends on 21) The light emitting display device of claim 21, wherein the first electrode and the second electrode are disposed on a same plane. ### Claim 25 (depends on 21) The light emitting display device of claim 21, wherein the first electrode is connected to a first electrode line and the second electrode is connected to a second electrode line, to receive a predetermined power source or signal. ### Claim 26 (depends on 21) The light emitting display device of claim 21, further comprising a pixel circuit connected to at least one of the first electrode and the second electrode. ### Claim 27 (depends on 26) The light emitting display device of claim 26, wherein the pixel circuit includes a transistor disposed on a layer between the substrate and the first electrode and the second electrode. ### Claim 28 (depends on 21) The light emitting display device of claim 21, wherein each of the third electrode and the fourth electrode includes a transparent conductive material. ### Claim 29 (depends on 21) The light emitting display device of claim 21, wherein the first LED is a bar-type LED aligned in a direction crossing the first electrode and the second electrode. ### Claim 30 (depends on 29) The light emitting display device of claim 29, wherein the first LED is aligned in a horizontal direction or an oblique direction between the first electrode and the second electrode, in a plan view. ### Claim 31 (depends on 21) The light emitting display device of claim 21, wherein the first electrode and the second electrode are spaced apart from each other at a distance shorter than a length of the first LED. ### Claim 32 (depends on 21) The light emitting display device of claim 21, further comprising a second LED disposed in a different layer from the first LED. ### Claim 33 (depends on 32) The light emitting display device of claim 32, further comprising an insulating layer interposed between the first LED and the second LED. ### Claim 34 (depends on 32) The light emitting display device of claim 32, wherein the first LED and the second LED are located at different heights from a surface of the substrate. ### Claim 35 A light emitting display device, comprising: a first pixel; and a second pixel adjacent to the first pixel, wherein each of the first pixel and the second pixel includes: a first electrode and a second electrode on a substrate; an LED on the first electrode and the second electrode; a third electrode directly contacting the LED and the first electrode; and a fourth electrode directly contacting the LED and the second electrode, and wherein the LED in the first pixel and the LED in the second pixel emit light of different colors, respectively. ### Claim 36 (depends on 35) The light emitting display device of claim 35, wherein: the LED includes a first end and a second end respectively disposed on the first electrode and the second electrode; the third electrode contacts the first end of the LED and a first portion of an upper surface of the LED located on the first end, in a cross-sectional view; and the fourth electrode contacts the second end of the LED and a second portion of the upper surface of the LED located on the second end, in a cross-sectional view. ### Claim 37 (depends on 35) The light emitting display device of claim 35, wherein the first electrode and the second electrode are disposed on a same plane. ### Claim 38 (depends on 35) The light emitting display device of claim 35, wherein each of the first pixel and the second pixel further includes a pixel circuit connected to at least one of the first electrode and the second electrode. ### Claim 39 (depends on 35) The light emitting display device of claim 35, wherein each of the third electrode and the fourth electrode includes a transparent conductive material. ### Claim 40 (depends on 35) The light emitting display device of claim 35, wherein the first electrode and the second electrode are spaced apart from each other at a distance shorter than a length of the LED.