# US 12,193,299 B2 · Display device including a partition wall having emission layers disposed in openings thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,193,299 B2 - Document ID: US12193299B2 - Status: Granted - Kind: B2 - Application number: 17/651,151 - Filed: 2022-02-15 - Published: 2022-12-22 - Granted: 2025-01-07 - Earliest claimed: 2022-02-15 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Hyang Yul Kim; Hee Seong Jeong; Hyun-Gue Song; Jong Beom Hong - Web page: https://patentgrep.com/patent/US12193299B2 ## CPC - H10K 59/122: Pixel-defining structures or layers, e.g. banks - H10K 59/126: Shielding, e.g. light-blocking means over the TFTs - H10K 59/35: comprising red-green-blue [RGB] subpixels - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K 59/8792: {comprising light absorbing layers, e.g. black layers} - H10K 59/352: {the areas of the RGB subpixels being different} - H10K 59/353: {characterised by the geometrical arrangement of the RGB subpixels} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device includes a substrate, a partition wall disposed on the substrate and having a plurality of openings, a first emission layer, a second emission layer, and a third emission layer respectively disposed in an opening of the partition wall and emitting light of different colors, a light blocker disposed on the emission layers and including a plurality of openings respectively overlapping the first emission layer, the second emission layer, and the third emission layer, and a color filter disposed in the opening of the light blocker. A separation distance between one edge of the partition wall contacting the second emission layer and the light blocker is greater than a separation distance between the one edge of the partition wall contacting the first emission layer and the light blocker. ## Claims ### Claim 1 A display device, comprising: a substrate; a partition wall disposed on the substrate and having a plurality of openings disposed therein; a first emission layer, a second emission layer, and a third emission layer each disposed in an opening of the plurality of openings of the partition wall and emitting lights of different colors from each other; a light blocker disposed on the first, second, and third emission layers and including a plurality of openings respectively overlapping the first emission layer, the second emission layer, and the third emission layer; and a color filter disposed in the plurality of opening of the light blocker, wherein a separation distance between one edge of the partition wall contacting the second emission layer and the light blocker is greater than a separation distance between one edge of the partition wall contacting the first emission layer and the light blocker. ### Claim 2 (depends on 1) The display device of claim 1, wherein a separation distance between the one edge of the partition wall contacting the first emission layer and the light blocker is greater than a separation distance between one edge of the partition wall contacting the third emission layer and the light blocker. ### Claim 3 (depends on 2) The display device of claim 2, wherein the first emission layer emits red light, the second emission layer emits green light, and the third emission layer emits blue light. ### Claim 4 (depends on 3) The display device of claim 3, wherein a separation distance between the one edge of the partition wall contacting the second emission layer and the light blocker is greater than a separation distance between the one edge of the partition wall contacting the first emission layer and the light blocker by 1 μm, and a separation distance between the one edge of the partition wall contacting the first emission layer and the light blocker is greater than a separation distance between the one edge of the partition wall contacting the third emission layer and the light blocker by 1 μm. ### Claim 5 (depends on 2) The display device of claim 2, wherein a difference between a separation distance between one edge of a partition wall contacting the first emission layer and the light blocker and a separation distance between one edge of a partition wall contacting the third emission layer and the light blocker is equal to or less than 5 μm. ### Claim 6 (depends on 1) The display device of claim 1, wherein a separation distance between the one edge of the partition wall contacting the first emission layer and the light blocker is within a range of 3.5 μm to 5.5 μm. ### Claim 7 (depends on 1) The display device of claim 1, wherein a difference between a separation distance of the one edge of the partition wall contacting the second emission layer and the light blocker and a separation distance between the one edge of the partition wall contacting the first emission layer and the light blocker is equal to or less than 5 μm. ### Claim 8 (depends on 1) The display device of claim 1, wherein a separation distance between the one edge of the partition wall contacting the second emission layer and the light blocker and a separation distance between the one edge of the partition wall contacting the first emission layer and the light blocker are within 25% of each other. ### Claim 9 (depends on 1) The display device of claim 1, wherein a separation distance between the one edge of the partition wall contacting the first emission layer and the light blocker and a separation distance between one edge of the partition wall contacting the third emission layer and the light blocker are within 25% of each other. ### Claim 10 (depends on 1) The display device of claim 1, wherein the color filter includes: a first color filter overlapping the first emission layer in a direction that is perpendicular to a side of the substrate; a second color filter overlapping the second emission layer in the direction that is perpendicular to the side of the substrate; and a third color filter overlapping the third emission layer in the direction that is perpendicular to the side of the substrate, wherein the first color filter, the second color filter, and the third color filter have different colors from each other. ### Claim 11 (depends on 10) The display device of claim 10, wherein a width of the light blocker disposed between the first color filter and the second color filter is less than a width of the light blocker disposed between the second color filter and the third color filter. ### Claim 12 (depends on 11) The display device of claim 11, wherein a width of the light blocker disposed between the second color filter and the third color filter is less than a width of the light blocker disposed between the third color filter and the first color filter. ### Claim 13 (depends on 12) The display device of claim 12, wherein the first color filter is a red color filter, the second color filter is a green color filter, and the third color filter is a blue color filter. ### Claim 14 (depends on 10) The display device of claim 10, wherein a width of the light blocker disposed between the first color filter and the second color filter, a width of the light blocker disposed between the second color filter and the third color filter, and a width of the light blocker disposed between the third color filter and the first color filter are all the same as one another. ### Claim 15 (depends on 1) The display device of claim 1, further comprising: a plurality of transistors disposed on the substrate; a plurality of first electrodes respectively connected to the plurality transistors; and a second electrode disposed on the first emission layer, the second emission layer, the third emission layer, and the partition wall. ### Claim 16 (depends on 1) The display device of claim 1, wherein the partition wall includes a black material. ### Claim 17 (depends on 1) The display device of claim 1, wherein the display device does not include a polarization layer. ### Claim 18 A display device, comprising: a substrate; a partition wall disposed the substrate and having a plurality of openings; a first emission layer, a second emission layer, and a third emission layer respectively disposed in the plurality of openings of the partition wall and emitting different colors of light from each other; a light blocker disposed on the first, second, and third emission layers and having a plurality of openings respectively overlapping the first emission layer, the second emission layer, and the third emission layer; and a color filter disposed in the plurality of opening of the light blocker, wherein the color filter includes a first color filter overlapping the first emission layer in a direction that is perpendicular to a side of the substrate, a second color filter overlapping the second emission layer in the direction that is perpendicular to the side of the substrate, a third color filter overlapping the third emission layer in the direction that is perpendicular to the side of the substrate, and a width in a horizontal direction of the light blocker disposed between the second color filter and the third color filter is less than a width in the horizontal direction of the light blocker disposed between the third color filter and the first color filter. ### Claim 19 (depends on 18) The display device of claim 18, wherein a width in the horizontal direction of the light blocker disposed between the first color filter and the second color filter is less than a width in the horizontal direction of the light blocker disposed between the second color filter and the third color filter. ### Claim 20 (depends on 18) The display device of claim 18, wherein a separation distance in a vertical direction between one edge of the partition wall contacting the first emission layer and the light blocker, a separation distance in the vertical direction between one edge of the partition wall contacting the second emission layer and the light blocker, and a separation distance in the vertical direction between one edge of the partition wall contacting the third emission layer and the light blocker are the same as one another. ### Claim 21 A display device, comprising: a substrate; a partition wall disposed on the substrate and having a plurality of openings; a red emission layer, a green emission layer, and a blue emission layer respectively disposed in the plurality of openings of the partition wall; and a light blocker disposed on the red, green, and blue emission layers and having a plurality of openings respectively overlapping a red emission layer, a green emission layer, and a blue emission layer, wherein a separation distance between one edge of the partition wall contacting the red emission layer and the light blocker is greater than a separation distance between one edge of the partition wall contacting the blue emission layer and the light blocker. ### Claim 22 (depends on 21) The display device of claim 21, further comprising a color filter disposed in the opening of the light blocker, wherein the color filter includes a red color filter overlapping the red emission layer in a direction that is perpendicular to a side of the substrate, a green color filter overlapping the green emission layer in the direction that is perpendicular to the side of the substrate, and a blue color filter overlapping the blue emission layer in the direction that is perpendicular to the side of the substrate, wherein a width of the light blocker disposed between the green color filter and the blue color filter is greater than a width of the light blocker disposed between the red color filter and the green color filter. ### Claim 23 (depends on 21) The display device of claim 21, wherein the partition wall includes a black material, and the display device does not include a polarization layer. ### Claim 24 (depends on 21) The display device of claim 21, wherein a separation distance between the one edge of the partition wall contacting the red emission layer and the light blocker corresponds to a distance between one edge of the partition wall contacting the green emission layer and the light blocker. ### Claim 25 (depends on 21) The display device of claim 21, wherein a separation distance between one edge of the partition wall contacting the green emission layer and the light blocker is greater than a separation distance between the one edge of the partition wall contacting the red emission layer and the light blocker. ### Claim 26 (depends on 21) The display device of claim 21, further comprising: a plurality of transistors disposed on the substrate; a plurality of first electrodes respectively connected to the plurality of transistors; a second electrode disposed on the red emission layer, the green emission layer, the blue emission layer, and the partition wall; and an encapsulation layer disposed on the second electrode.