# US 2024/0201531 A1 · Display device including a liquid crystal layer including polymers and liquid crystal molecules > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0201531 A1 - Document ID: US20240201531A1 - Status: Published application - Kind: A1 - Application number: 18/441,241 - Filed: 2024-02-14 - Published: 2024-06-20 - Earliest claimed: 2018-11-22 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Kentaro OKUYAMA; Yoshihide OHUE; Hiroki SUGIYAMA; Tomoyuki TADA - Web page: https://patentgrep.com/patent/US20240201531A1 ## CPC - G02F 1/133345: {Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence)} - G02F 1/1334: based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals - G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)} - G02F 1/133615: {Edge-illuminating devices, i.e. illuminating from the side} - G02F 1/13394: {spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence)} - G02F 1/136213: {Storage capacitors associated with the pixel electrode} - G02F 1/136286: {Wiring, e.g. gate line, drain line} - G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/451: {characterised by the compositions or shapes of the interlayer dielectrics} - H10D 86/481: {integrated with passive devices, e.g. auxiliary capacitors} - H10D 86/60: wherein the TFTs are in active matrices - G02F 1/133365: {Cells in which the active layer comprises a liquid crystalline polymer} - G02F 1/133377: {Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel} - G02F 1/13347: {working in reverse mode, i.e. clear in the off-state and scattering in the on-state} - G02F 1/13606: {having means for reducing parasitic capacitance} - G02F 1/136227: {Through-hole connection of the pixel electrode to the active element through an insulation layer} - G02F 2203/03: scattering - H10D 30/6729: {characterised by the electrodes} - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES ## Abstract According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer including polymers and liquid crystal molecules, and a light-emitting element. The first substrate includes a transparent substrate, a scanning line, a signal line crossing the scanning line, a switching element electrically connected to the scanning line and the signal line, an organic insulating film overlapping the switching element, and a pixel electrode electrically connected to the switching element. A thickness of the organic insulating film located between the transparent substrate and the pixel electrode is less than a thickness of the organic insulating film overlapping the switching element. ## Claims ### Claim at position 1 -16. (canceled) ### Claim 17 A display device comprising: a first substrate including a first signal line, a second signal line next to the first signal line in a first direction, a first scanning line, a second scanning line next to the first scanning line in a second direction intersecting the first direction, a drain electrode, an inorganic insulating film covering the first signal line, the second signal line, and the drain electrode, an organic insulating film on the inorganic insulating film, and a pixel electrode connected to the drain electrode; a second substrate including a common electrode; and a liquid crystal layer located between the first substrate and the second substrate, and including streaky polymers and liquid crystal molecules, wherein the organic insulating film is formed of a grid shape along the first signal line, the second signal line, the first scanning line, and the second signal line, the organic insulating film includes an opening in a pixel region surrounded by the first signal line, the second signal line, the first scanning line, and the second scanning line, a connection portion of the drain electrode is located in the opening, the inorganic insulating film is exposed from the organic insulating film by the opening, and the pixel electrode is connected to the drain electrode via a contact hole formed in the inorganic insulating film. ### Claim 18 (depends on 17) The display device of claim 17, wherein the organic insulating film includes a side surface that defines the opening, the first substrate further includes a capacitance electrode located on the organic insulating film and that overlaps a part of the pixel electrode, and the side surface is covered by the capacitance electrode. ### Claim 19 (depends on 18) The display device of claim 18, wherein the first substrate further includes a capacitance insulating film between the capacitance electrode and the pixel electrode, and in the opening, the capacitance insulating film is in contact with the inorganic insulating film in a region where the capacitance electrode is not formed. ### Claim 20 (depends on 19) The display device of claim 19, wherein the first substrate further includes a metal line between the organic insulating film and the capacitance insulating film, and the metal line has a grid shape formed along the grid shape of the organic insulating film. ### Claim 21 (depends on 17) The display device of claim 17, wherein a size of the opening is about an area of the pixel region. ### Claim 22 (depends on 17) The display device of claim 17, wherein a width of the organic insulating film along the first direction is smaller than a width of the opening along the first direction, and a width of the organic insulating film along the second direction is smaller than a width of the opening along the second direction. ### Claim 23 (depends on 17) The display device of claim 17, wherein a maximum width of the opening along the first direction is substantially equal to a distance between the first signal line and the second signal line, and a maximum width of the opening along the second direction is substantially equal to a distance between the first scanning line and the second scanning line.