# US 2022/0285652 A1 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0285652 A1 - Document ID: US20220285652A1 - Status: Published application - Kind: A1 - Application number: 17/455,193 - Filed: 2021-11-16 - Published: 2022-09-08 - Earliest claimed: 2021-03-05 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: JEONG MYO SIM; KYUNGHEE LEE; MIHWA LEE - Web page: https://patentgrep.com/patent/US20220285652A1 ## CPC - H10K 59/874: {including getter material or desiccant} - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K 59/40: OLEDs integrated with touch screens - H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers} - H10K 59/8792: {comprising light absorbing layers, e.g. black layers} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device includes a display panel and a light control layer disposed on the display panel. The light control layer includes a base portion, a coloring agent having a maximum absorption wavelength in a wavelength range equal to or greater than about 580 nm and equal to or smaller than about 600 nm, and a desiccant. ## Claims ### Claim 1 A display device comprising: a display panel; and a light control layer on the display panel and comprising: a base portion, a coloring agent having a maximum absorption wavelength in a wavelength range of about 580 nm to about 600 nm, and a desiccant. ### Claim 2 (depends on 1) The display device of claim 1, wherein the desiccant is in a first state before absorbing moisture and in a second state after absorbing the moisture, and a color of the desiccant in the first state is the same as a color of the desiccant in the second state. ### Claim 3 (depends on 1) The display device of claim 1, wherein the desiccant transmits visible light. ### Claim 4 (depends on 1) The display device of claim 1, wherein the light control layer comprises about 0.01 wt % to about 5.00 wt % of the desiccant with respect to a total content of the light control layer. ### Claim 5 (depends on 1) The display device of claim 1, wherein the desiccant comprises at least one selected from CaO, MgO, CaCl2, CaCO3, CaZrO3, CaTiO3, SiO2, Ca2SiO4, MgCl2, P2O5, Li2O, Na2O, BaO, Li2SO4, Na2SO4, CaSO4, MgSO4, CoSO4, Ga2(SO4)3, Ti(SO4)2, NiSO4, SrCl2, YCl3, CuCl2, CsF, TaF5, NbF5, LiBr, CaBr2, CeBr3, SeBr4, VBr3, MgBr2, BaI2, MgI2, Ba(ClO4)2, and Mg(ClO4)2. ### Claim 6 (depends on 1) The display device of claim 1, wherein the coloring agent comprises at least one selected from an anthraquinone-based compound, a phthalocyanine-based compound, an azo-based compound, a perylene-based compound, a xanthene-based compound, a diimmonium-based compound, a dipyrromethene-based compound, a tetraazaporphyrin-based compound, a porphyrin-based compound, a squarylium-based compound, an oxazine-based compound, a triarylmethane-based compound, and a cyanine-based compound. ### Claim 7 (depends on 1) The display device of claim 1, wherein the light control layer comprises about 0.01 wt % to about 5.00 wt % of the coloring agent with respect to a total content of the light control layer. ### Claim 8 (depends on 1) The display device of claim 1, wherein the coloring agent has a higher hydrophobicity than the desiccant. ### Claim 9 (depends on 1) The display device of claim 1, further comprising a barrier wall, wherein the display panel comprises: a base layer; and a display element layer on the base layer and comprising a light emitting area and a non-light-emitting area, and wherein the barrier wall is on the display element layer, is covered by the light control layer, and overlaps the non-light-emitting area. ### Claim 10 (depends on 1) The display device of claim 1, further comprising a sensor layer between the display panel and the light control layer, wherein the sensor layer is directly on the display panel. ### Claim 11 (depends on 1) The display device of claim 1, wherein the base portion comprises a base resin comprising at least one selected from an acrylate monomer and an epoxy monomer. ### Claim 12 (depends on 11) The display device of claim 11, wherein the base resin comprises: about 25 wt % to about 35 wt % of at least one selected from the acrylate monomer and the epoxy monomer, about 0.01 wt % to about 5.00 wt % of a photoinitiator, and about 25 wt % to about 35 wt % of a curable resin, and the remainder of the base resin comprises one or more additives. ### Claim 13 A display device comprising: a display panel comprising first, second, and third light emitting elements spaced apart from each other when viewed in a plane, wherein the first, second, and third light emitting elements are to emit lights having different wavelengths from each other; and a light control layer on the display panel and comprising: a base portion, a coloring agent having a maximum absorption wavelength in a wavelength range of about 580 nm to about 600 nm, and a desiccant. ### Claim 14 (depends on 13) The display device of claim 13, wherein each of the first, second, and third light emitting elements comprises: a first electrode; a hole transport region on the first electrode; a light emitting layer on the hole transport region; an electron transport region on the light emitting layer; a second electrode on the electron transport region; and a capping layer on the second electrode. ### Claim 15 (depends on 13) The display device of claim 13, wherein the first light emitting element is to emit a red light, the second light emitting element is to emit a green light, and the third light emitting element is to emit a blue light. ### Claim 16 (depends on 13) The display device of claim 13, wherein the light control layer overlaps the first, second, and third light emitting elements. ### Claim 17 (depends on 13) The display device of claim 13, further comprising a barrier wall, wherein the display panel comprises a display element layer comprising the first, second, and third light emitting elements, the display element layer comprises: a light emitting area in which the first, second, and third light emitting elements are disposed, and a non-light-emitting area around the light emitting area, and the barrier wall is on the display element layer, is covered by the light control layer, and overlaps the non-light-emitting area. ### Claim 18 (depends on 17) The display device of claim 17, wherein the barrier wall comprises a black pigment and/or a black dye. ### Claim 19 (depends on 13) The display device of claim 13, wherein the light control layer comprises about 0.01 wt % to about 5.00 wt % of the desiccant with respect to a total content of the light control layer. ### Claim 20 (depends on 13) The display device of claim 13, wherein the light control layer comprises about 0.01 wt % to about 5.00 wt % or less of the coloring agent with respect to a total content of the light control layer.