# US 10,503,026 B2 · Liquid crystal display panel and method for manufacturing the same and liquid crystal display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,503,026 B2 - Document ID: US10503026B2 - Status: Granted - Kind: B2 - Application number: 15/037,436 - Filed: 2015-08-31 - Published: 2017-04-20 - Granted: 2019-12-10 - Earliest claimed: 2015-04-24 - Assignees: Boe Technology Group Co., Ltd.; Hefei Boe Optoelectronics Technology Co., Ltd. - Applicants: BOE Technology Group Co., Ltd.; Hefei BOE Optoelectronics Technology Co., Ltd. - Inventors: Jun Zhang - Web page: https://patentgrep.com/patent/US10503026B2 ## CPC - G02F 1/13394: {spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence)} - G02F 1/13396: {Spacers having different sizes} - G02F 1/13398: {Spacer materials; Spacer properties} - G02F 1/13415: {Drop filling process} - 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 ## Abstract The present disclosure provides a liquid crystal display panel having a long side defining a first direction and a short side defining a second direction, and the long side has a length greater than that of the short side. The liquid crystal display panel includes a first substrate, a second substrate and a plurality of spacers arranged between the first substrate and the second substrate, wherein liquid crystal droplets are able to flow among the plurality of spacers, and wherein the plurality of spacers are configured and arranged such that a sum of cross sectional areas of the plurality of spacers per unit length in the first direction is greater than a sum of cross sectional areas of the plurality of spacers per unit length in the second direction. The liquid crystal display panel provided by the present disclosure may reduce the contamination at the periphery of a small size TFT-LCD device and facilitate flowing and diffusing of the liquid crystal droplets to corners of the device. As such, the present disclosure also provides a method for manufacturing the liquid crystal display panel and a liquid crystal display apparatus including the above liquid crystal display panel. ## Claims ### Claim 1 A liquid crystal display panel having a long side defining a first direction and a short side defining a second direction, and the liquid crystal display panel comprising a first substrate, a second substrate and a plurality of spacers arranged between the first substrate and the second substrate, wherein liquid crystal droplets are able to flow among the plurality of spacers, and wherein the plurality of spacers are configured and arranged such that a sum of cross sectional areas of the plurality of spacers per unit length in the first direction is greater than a sum of cross sectional areas of the plurality of spacers per unit length in the second direction, so as to enable the liquid crystal droplets to have a flow rate in the first direction greater than that in the second direction, wherein the plurality of spacers are divided into a plurality of rows of spacers in the first direction, each spacer in at least one row has a cross section in a shape of circle, and the at least one row is arranged in a middle region of the liquid crystal display panel in the second direction, the plurality of rows except the at least one row are arranged on both sides of the middle region, on each side of the middle region, the plurality of rows except the at least one row are adjacent to each other, and each spacer in the plurality of rows except the at least one row has a cross section in a shape of elongated ellipse, and a long axis of the ellipse is tilted relative to the first direction, an angle between the long axis and the first direction is greater than 0 and less than or equal to 45 degrees. ### Claim 2 (depends on 1) The liquid crystal display panel according to claim 1, wherein the plurality of spacers have an arrangement density in the first direction greater than that in the second direction. ### Claim 3 (depends on 2) The liquid crystal display panel according to claim 2, wherein at least one of the plurality of spacers has a cross section in a shape of circle. ### Claim 4 (depends on 3) The liquid crystal display panel according to claim 3, wherein a spacing between any two adjacent spacers in the first direction of the plurality of spacers is less than a spacing between any two adjacent spacers in the second direction of the plurality of spacers. ### Claim 5 (depends on 1) The liquid crystal display panel according to claim 1, wherein the spacers are arranged in a central symmetry with respect to a center of the display panel. ### Claim 6 (depends on 1) The liquid crystal display panel according to claim 1, wherein the plurality of spacers have an arrangement density in corner regions, at which the long and short sides of the liquid crystal display panel intersect with each other, less than that in a central region of the liquid crystal display panel. ### Claim 7 (depends on 1) A liquid crystal display apparatus comprising the liquid crystal display panel according to claim 1. ### Claim 8 (depends on 7) The liquid crystal display apparatus according to claim 7, wherein the plurality of spacers have an arrangement density in the first direction greater than that in the second direction. ### Claim 9 (depends on 8) The liquid crystal display apparatus according to claim 8, wherein a spacing between any two adjacent spacers in the first direction of the plurality of spacers is less than a spacing between any two adjacent spacers in the second direction of the plurality of spacers. ### Claim 10 A method for manufacturing a liquid crystal display panel, the liquid crystal display panel having a long side defining a first direction and a short side defining a second direction, wherein the long side has a length greater than that of the short side, wherein the method comprises: providing a first substrate, a second substrate and a plurality of spacers arranged between the first substrate and the second substrate, wherein the plurality of spacers are configured and arranged such that a sum of cross sectional areas of the plurality of spacers per unit length in the first direction is greater than a sum of cross sectional areas of the plurality of spacers per unit length in the second direction, the plurality of spacers are divided into a plurality of rows of spacers in the first direction, each spacer in at least one row has a cross section in a shape of circle, and the at least one row is arranged in a middle region of the liquid crystal display panel in the second direction, the plurality of rows except the at least one row are arranged on both sides of the middle region, on each side of the middle region, the plurality of rows except the at least one row are adjacent to each other, and each spacer in the plurality of rows except the at least one row has a cross section in a shape of elongated ellipse, a long axis of the ellipse is tilted relative to the first direction, an angle between the long axis and the first direction is greater than 0 and less than or equal to 45 degrees; and providing liquid crystal droplets flowing among the plurality of spacers. ### Claim 11 (depends on 10) The method according to claim 10, wherein the plurality of spacers have an arrangement density in the first direction greater than that in the second direction. ### Claim 12 (depends on 11) The method according to claim 11, wherein a spacing between any two adjacent spacers in the first direction of the plurality of spacers is less than a spacing between any two adjacent spacers in the second direction of the plurality of spacers. ### Claim 13 (depends on 11) The method according to claim 11, wherein at least one of the plurality of spacers has a cross section in a shape of circle. ### Claim 14 (depends on 10) The method according to claim 10, wherein the plurality of spacers have an arrangement density in corner regions, at which the long and short sides of the liquid crystal display panel intersect with each other, less than that in a central region of the liquid crystal display panel.