# US 2019/0378450 A1 · Display apparatus and electric apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0378450 A1 - Document ID: US20190378450A1 - Status: Published application - Kind: A1 - Application number: 16/420,357 - Filed: 2019-05-23 - Published: 2019-12-12 - Earliest claimed: 2018-06-12 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Yojiro Matsuda - Web page: https://patentgrep.com/patent/US20190378450A1 ## CPC - H10K 59/122: Pixel-defining structures or layers, e.g. banks - G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)} - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - H10K 59/35: comprising red-green-blue [RGB] subpixels - H10K 59/805: {Electrodes} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract A display apparatus comprising a pixel provided on a substrate, the pixel including a first subpixel, a second subpixel, and a third subpixel which are arranged to be adjacent to each other and are configured to generate light components of colors different from each other, and the first, second and third subpixels comprise an organic compound layer including a light emission layer, wherein letting I1, I2, and I3 be driving current amounts of the first, second and third subpixels when generating white light of a predetermined luminance, if I1>I2>I3 holds, a current leakage between the first and third subpixels is limited as compared to that between the second and third subpixels. ## Claims ### Claim 1 A display apparatus comprising a plurality of pixels arranged on a substrate, in which at least one of the plurality of pixels includes a first subpixel, a second subpixel, and a third subpixel which are arranged to be adjacent to each other and are configured to generate light components of colors different from each other, and the first subpixel, the second subpixel, and the third subpixel comprise an organic compound layer including a light emission layer, wherein in the pixel, letting I1, I2, and I3 be driving current amounts of the first subpixel, the second subpixel, and the third subpixel of the pixel when generating white light of a predetermined luminance, if I1>I2>I3 holds, a current leakage between the first subpixel and the third subpixel is limited as compared to a current leakage between the second subpixel and the third subpixel. ### Claim 2 (depends on 1) The apparatus according to claim 1, wherein the predetermined luminance is 1 [cd/m2] (inclusive) to 5 [cd/m2] (inclusive). ### Claim 3 (depends on 1) The apparatus according to claim 1, wherein a current leakage between the first subpixel and the second subpixel is limited as compared to the current leakage between the second subpixel and the third subpixel. ### Claim 4 (depends on 1) The apparatus according to claim 1, wherein each of the first subpixel, the second subpixel, and the third subpixel includes a lower electrode arranged between the substrate and the organic compound layer, and the organic compound layer is arranged across the lower electrodes of the first subpixel, the second subpixel, and the third subpixel. ### Claim 5 (depends on 4) The apparatus according to claim 4, wherein the organic compound layer is formed by stacking a plurality of layers, and a part on a lower layer side of the plurality of layers is formed such that an electrical resistance between the lower electrode of the first subpixel and the lower electrode of the third subpixel becomes larger than an electrical resistance between the lower electrode of the second subpixel and the lower electrode of the third subpixel. ### Claim 6 (depends on 5) The apparatus according to claim 5, wherein the part on the lower layer side is thinned or divided between the lower electrode of the first subpixel and the lower electrode of the third subpixel. ### Claim 7 (depends on 6) The apparatus according to claim 6, wherein a trench portion is provided in an upper surface of the substrate between the lower electrode of the first subpixel and the lower electrode of the third subpixel, and the organic compound layer is provided to fill the trench portion. ### Claim 8 (depends on 6) The apparatus according to claim 6, further comprising an insulating member provided to surround a peripheral portion of the lower electrode of each of the first subpixel, the second subpixel, and the third subpixel in a planar view, wherein the insulating member includes a first portion located between the lower electrode corresponding to the first subpixel and the lower electrode corresponding to the third subpixel, and a second portion that is a portion other than the first portion, the first portion is provided to have a larger width in a horizontal direction as a distance from the substrate becomes long, and the second portion is provided to have a smaller width in the horizontal direction as the distance from the substrate becomes long, and the organic compound layer is extended along an upper surface of the substrate to cover the lower electrodes of the first subpixel, the second subpixel, and the third subpixel and the first portion and the second portion of the insulating member. ### Claim 9 (depends on 5) The apparatus according to claim 5, wherein the part on the lower layer side includes at least one of a hole injection layer, a hole transport layer, and an electron blocking layer. ### Claim 10 (depends on 5) The apparatus according to claim 5, wherein the part on the lower layer side includes at least one of an electron injection layer, an electron transport layer, and a hole blocking layer. ### Claim 11 (depends on 5) The apparatus according to claim 5, further comprising an upper electrode extended, above the lower electrodes of the first subpixel, the second subpixel, and the third subpixel, along an upper surface of the substrate to cover the organic compound layer. ### Claim 12 (depends on 1) The apparatus according to claim 1, wherein the first subpixel is configured to generate blue light, the second subpixel is configured to generate green light, and the third subpixel is configured to generate red light. ### Claim 13 An electric apparatus comprising a display apparatus, wherein the display apparatus comprises a plurality of pixels arranged on a substrate, in which at least one of the plurality of pixels includes a first subpixel, a second subpixel, and a third subpixel which are arranged to be adjacent to each other and are configured to generate light components of colors different from each other, and the first subpixel, the second subpixel, and the third subpixel comprise an organic compound layer including a light emission layer, and wherein in the pixel, letting I1, I2, and I3 be driving current amounts of the first subpixel, the second subpixel, and the third subpixel of the pixel when generating white light of a predetermined luminance, if I1>I2>I3 holds, a current leakage between the first subpixel and the third subpixel is limited as compared to a current leakage between the second subpixel and the third subpixel.