# US 11,112,656 B2 · Liquid crystal dripping nozzle, liquid crystal dripping device and method for dripping liquid crystal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,112,656 B2 - Document ID: US11112656B2 - Status: Granted - Kind: B2 - Application number: 16/019,036 - Filed: 2018-06-26 - Published: 2019-02-14 - Granted: 2021-09-07 - Earliest claimed: 2017-08-11 - Assignees: Boe Technology Group Co., Ltd.; Ordos Yuansheng Optoelectronics Co., Ltd. - Applicants: Boe Technology Group Co., Ltd.; Ordos Yuansheng Optoelectronics Co., Ltd. - Inventors: Shuaimin Jian; Weixin Meng; Jian Guo; Lubiao Sun; Wei Zheng; Yanzhao Peng - Web page: https://patentgrep.com/patent/US11112656B2 ## CPC - G02F 1/1341: Filling or closing of cells - G02F 1/1303: {Apparatus specially adapted to the manufacture of LCDs} - B05C 5/027: {Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated (B05C5/0254 takes precedence)} - 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 - B05C: APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (spraying apparatus, atomising apparatus, nozzles B05B; plant for applying liquids or other fluent materials to objects by electrostatic spraying B05B5/08) ## Abstract A liquid crystal dripping nozzle, a liquid crystal dripping device, and a method of dripping liquid crystal are provided. The liquid crystal dripping nozzle includes: a carrier; a main dripping nozzle, disposed in a central region of the carrier and configured for dripping liquid crystal; and a plurality of auxiliary dripping nozzles, disposed in a corner region of the carrier and configured for dripping liquid crystal, wherein the plurality of auxiliary dripping nozzles are arranged around the main dripping nozzle. ## Claims ### Claim 1 A liquid crystal dripping nozzle, comprising: a carrier; a main dripping nozzle, disposed in a central region of the carrier and configured for dripping liquid crystal; and a plurality of auxiliary dripping nozzles, disposed in a corner region of the carrier and configured for dripping liquid crystal, wherein the plurality of auxiliary dripping nozzles are arranged around the main dripping nozzle, and wherein the main dripping nozzle comprises a first channel each auxiliary dripping nozzle comprises a second channel, a cross-sectional area of the first channel is equal to a sum of cross-sectional areas of second channels of the plurality of auxiliary dripping nozzles. ### Claim 2 (depends on 1) The liquid crystal dripping nozzle according to claim 1, wherein the plurality of auxiliary dripping nozzles are uniformly arranged around the main dripping nozzle along a circumference of a circle with the main dripping nozzle as a center. ### Claim 3 (depends on 1) The liquid crystal dripping nozzle according to claim 1, wherein the plurality of auxiliary dripping nozzles are symmetrically arranged on both sides of the main dripping nozzle. ### Claim 4 (depends on 1) The liquid crystal dripping nozzle according to claim 1, wherein the liquid crystal dripping nozzle comprises one main dripping nozzle and four auxiliary dripping nozzles. ### Claim 5 (depends on 1) The liquid crystal dripping nozzle according to claim 1, wherein a distance between each auxiliary dripping nozzle and the main dripping nozzle is ranged from 2 mm to 4 mm. ### Claim 6 (depends on 1) A liquid crystal dripping device, comprising the liquid crystal dripping nozzle according to claim 1. ### Claim 7 (depends on 6) The liquid crystal dripping device according to claim 6, further comprising a holder, the carrier is a disperser which is arranged on the holder, wherein the liquid crystal dripping nozzle is arranged on a working surface of the disperser. ### Claim 8 (depends on 7) The liquid crystal dripping device according to claim 7, wherein the main dripping nozzle is located in a central region of the working surface, and the plurality of auxiliary dripping nozzles are located in a corner region of the working surface and around the main dripping nozzle. ### Claim 9 (depends on 7) The liquid crystal dripping device according to claim 7, wherein the disperser comprises a first valve and a second valve, wherein the first valve is configured for controlling the main dripping nozzle, and the second valve is configured for controlling the plurality of auxiliary dripping nozzles. ### Claim 10 (depends on 9) The liquid crystal dripping device according to claim 9, wherein the first valve and the second valve are independent valves, or an integral multi-way valve. ### Claim 11 (depends on 7) The liquid crystal dripping device according to claim 7, further comprising a slide rail arranged on the working surface of the disperser, wherein at least one of auxiliary dripping nozzles is configured to be movable on the slide rail. ### Claim 12 (depends on 11) The liquid crystal dripping device according to claim 11, wherein the slide rail comprises a plurality of transverse rails and a plurality of longitudinal rails arranged on the working surface. ### Claim 13 (depends on 11) The liquid crystal dripping device according to claim 11, wherein the slide rail comprises a plurality of oblique rails arranged on the working surface in a radial direction, and one end of each oblique rail is directed to the main dripping nozzle. ### Claim 14 (depends on 7) The liquid crystal dripping device according to claim 7, further comprising a movable mechanism, wherein the holder is arranged on the movable mechanism. ### Claim 15 (depends on 14) The liquid crystal dripping device according to claim 14, further comprising a rotatable mechanism, wherein the disperser is arranged on the rotatable mechanism and configured to be rotatable with the rotatable mechanism, the rotatable mechanism is rotatably coupled to the movable mechanism. ### Claim 16 (depends on 1) A method for dripping a liquid crystal by using the liquid crystal dripping nozzle according to claim 1, comprising: dripping the liquid crystal in a central region of a liquid crystal pattern through the main dripping nozzle; switching the main dripping nozzle to the plurality of auxiliary dripping nozzles; and dripping the liquid crystal in a corner region of the liquid crystal pattern through the plurality of auxiliary dripping nozzles, wherein a total amount of the liquid crystal dripped by the plurality of auxiliary dripping nozzles is equal to an amount of the liquid crystal dripped by the main dripping nozzle.