# US 10,503,003 B2 · Polarizer and method for producing the same, display panel and display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,503,003 B2 - Document ID: US10503003B2 - Status: Granted - Kind: B2 - Application number: 15/513,550 - Filed: 2016-09-19 - Published: 2018-08-16 - Granted: 2019-12-10 - Earliest claimed: 2016-01-04 - Assignees: Boe Technology Group Co., Ltd. - Applicants: Boe Technology Group Co., Ltd. - Inventors: Jiuxia Yang; Feng Bai - Web page: https://patentgrep.com/patent/US10503003B2 ## CPC - G02B 5/3033: {in the form of a thin sheet or foil, e.g. Polaroid} - G02F 1/133528: {Polarisers} - B29D 11/00644: {polarizing} - G02B 5/30: Polarising elements (light-modulating devices with active elements G02F1/00) - G02B 5/3058: {comprising electrically conductive elements, e.g. wire grids, conductive particles} - H04N 5/74: Projection arrangements for image reproduction, e.g. using eidophor - G02F 1/133548: {Wire-grid polarisers} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - 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 - B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A polarizer and a method for producing the same, a display panel and a display apparatus are provided. It belongs to the technical field of display. The polarizer includes: an alignment layer; and a plurality of alignment members formed in the groove of the alignment layer, wherein each of the alignment members has a lengthwise direction parallel to the lengthwise direction of the groove. Under a certain external electrical field, the alignment members may exhibit deformation in large size, movement in a certain direction and rotation by themselves, so as to modulate the polarization orientation of the light. ## Claims ### Claim 1 A polarizer, comprising: an alignment layer in which a groove is provided, the groove extending in the same direction as an alignment direction of the alignment layer; a plurality of rod-shaped liquid metal members in the groove, wherein each of the plurality of rod-shaped liquid metal members has a long axis parallel to a lengthwise direction of the groove, and a curable material arranged in the groove and mixed with the plurality of rod-shaped liquid metal members, the curable material being cured to form the plurality of rod-shaped liquid metal members into a stable array. ### Claim 2 (depends on 1) The polarizer according to claim 1, wherein a cover layer is provided on a face, on which the groove is provided, of the alignment layer, the rod-shaped liquid metal-members in the groove are sandwiched between the alignment layer and the cover layer, and the groove has two ends extending to edges of the polarizer and forming openings at the edges. ### Claim 3 (depends on 2) The polarizer according to claim 2, wherein the cover layer is made of a polyester film; and the alignment layer is made of a polyimide or inorganic material. ### Claim 4 (depends on 2) The polarizer according to claim 2, wherein a protection layer is provided on the cover layer and/or on a face of the alignment layer opposite to the face on which the groove is provided. ### Claim 5 (depends on 2) The polarizer according to claim 2, wherein an insulation layer is provided on the cover layer and/or on a face of the alignment layer on which the groove is not provided. ### Claim 6 (depends on 1) The polarizer according to claim 1, wherein the rod-shaped liquid metal members are made of an alloy composed of at least two of cesium, gallium, rubidium, potassium, sodium, indium, lithium, tin, bismuth, zinc, antimony, magnesium and aluminum. ### Claim 7 (depends on 1) A display panel comprising the polarizer according to claim 1. ### Claim 8 (depends on 7) A display apparatus, comprising the display panel according to claim 7. ### Claim 9 (depends on 7) The display panel according to claim 7, further comprising a first substrate and a second substrate arranged opposite to each other, wherein the polarizer is provided on at least one of the first substrate and the second substrate. ### Claim 10 (depends on 9) A display apparatus comprising the display panel according to claim 9. ### Claim 11 A method for producing a polarizer, the method comprising: forming a groove in an alignment layer, the groove extending in the same direction as an alignment direction of the alignment layer; and forming a plurality of rod-shaped liquid metal members, wherein each of the rod-shaped liquid metal members has a long axis parallel to a lengthwise direction of the groove, wherein forming a plurality of rod-shaped liquid metal members comprises: pouring a mixture of a liquid metal with a curable material into the groove; applying an electrical field parallel to the lengthwise direction of the groove to the liquid metal to stretch the liquid metal along the lengthwise direction of the groove to form the plurality of rod-shaped liquid metal members: and curing the curable material. ### Claim 12 (depends on 11) The method according to claim 11, wherein a mass ratio of the liquid metal to the curable material in the mixture is greater than or equal to 9:1. ### Claim 13 (depends on 12) The method according to claim 12, wherein the curable material comprises ultraviolet curable material or thermal curable material. ### Claim 14 (depends on 11) The method according to claim 11, wherein after forming the groove in the alignment layer and before forming the plurality of rod-shaped liquid metal members in the groove, the method further comprises: forming a cover layer on a face, on which the groove is provided, of the alignment layer, wherein the groove has two ends extending to edges of the polarizer and forming openings at the edges. ### Claim 15 (depends on 14) The method according to claim 14, wherein after forming the plurality of rod-shaped liquid metal members in the groove, the method further comprises: forming a protection layer on the cover layer and/or on a face of the alignment layer opposite to the face on which the groove is provided. ### Claim 16 (depends on 14) The method according to claim 14, wherein after forming a plurality of rod-shaped liquid metal members in the groove, the method further comprises: forming an insulation layer on the cover layer and/or on a face of the alignment layer on which the groove is not provided.