# US 10,245,819 B2 · System and method for manufacturing display unit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,819 B2 - Document ID: US10245819B2 - Status: Granted - Kind: B2 - Application number: 15/617,280 - Filed: 2017-06-08 - Published: 2018-01-11 - Granted: 2019-04-02 - Earliest claimed: 2016-07-08 - Assignees: LG Chem, Ltd. - Applicants: LG Chem, Ltd. - Inventors: Beom Seok Lee; Hang Suk Choi; Eung Jin Jang; Suk Jae Lee; Kyung Hyeok Park - Web page: https://patentgrep.com/patent/US10245819B2 ## CPC - B32B 38/185: {combined with the cutting of one or more layers} - B32B 7/06: permitting easy separation - B32B 27/36: comprising polyesters - B32B 37/02: characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations - B32B 37/182: {one or more of the layers being plastic} - B32B 38/0004: {Cutting, tearing or severing, e.g. bursting; Cutter details (cutting in general B26D; laminating combined with punching or perforating B32B38/04; removing all or part of the layers B32B38/10; cutting in combination with laying up and registration B32B38/185 takes precedence)} - B32B 38/10: Removing layers, or parts of layers, mechanically or chemically - B32B 2307/42: Polarizing, birefringent, filtering - B32B 2457/20: Displays, e.g. liquid crystal displays, plasma displays - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ## Abstract A system for manufacturing a display unit according to an exemplary embodiment of the present invention includes: a carrying unit configured to carry an optical film including a polarizing film and a release film, wherein the polarizing film includes an adhesive layer through which, a release film adheres to and is peeled from the polarizing film; a cutting unit configured to cut the optical film up to a predetermined depth to form a polarizing film sheet piece on the optical film, without cutting the release film; a panel supply unit configured to continuously supply a panel to an attachment position, at which the polarizing film sheet piece is attached to one surface of the panel; an attachment unit configured to peel the polarizing film sheet piece from the release film, and attach the peeled polarizing film sheet piece to the one surface of the panel supplied by the panel supply unit; and a winding unit configured to wind the release film peeled by the attachment unit, wherein the attachment unit includes: an adhering means, which has an adhering property at an external side thereof, and peels the polarizing film sheet piece from the release film by the adhering property, and moves to the attachment position and makes the polarizing film sheet piece face the one surface of the panel in parallel; and an attaching means, which presses the adhering means to attaches the polarizing film sheet piece to the one surface of the panel. ## Claims ### Claim 1 A system for manufacturing a display unit, the system comprising: a carrying unit configured to carry an optical film including a polarizing film and a release film, wherein the polarizing film includes an adhesive layer through which, a release film adheres to and is peeled from the polarizing film; a cutting unit configured to cut the optical film up to a predetermined depth to form a polarizing film sheet piece on the optical film, without cutting the release film; a panel supply unit configured to continuously supply a panel to an attachment position, at which the polarizing film sheet piece is attached to one surface of the panel; an attachment unit configured to peel the polarizing film sheet piece from the release film, and attach the peeled polarizing film sheet piece to the one surface of the panel supplied by the panel supply unit; and a winding unit configured to wind the release film peeled by the attachment unit, wherein the attachment unit includes: an adhering means, which has an adhering property at an external side thereof, and peels the polarizing film sheet piece from the release film by the adhering property, and moves to the attachment position and makes the polarizing film sheet piece face the one surface of the panel in parallel; an attaching means, which presses the adhering means to attach the polarizing film sheet piece to the one surface of the panel, and a moving means, which moves so as to enable the adhering means to pass through an adhering position, at which the adhering means adheres to the carried polarizing film sheet piece, and the attachment position, and wherein the adhering means is positioned on at least a part of a surface of the moving means. ### Claim 2 (depends on 1) The system of claim 1, wherein the moving means is formed in a belt type and is rotated to enable the adhering means to circulate while passing through the adhering position and the attachment position. ### Claim 3 (depends on 1) The system of claim 1, wherein adhering force of the adhering means to the polarizing film sheet piece is larger than the adhering force between the adhesive layer of the polarizing film sheet piece and the release film and is smaller than the adhering force between the adhesive layer of the polarizing film sheet piece and the panel. ### Claim 4 (depends on 1) The system of claim 1, wherein the attachment means presses a rear portion of the polarizing film sheet piece in a direction adjacent to the panel and attaches the rear portion of the polarizing film sheet piece to a rear portion of the panel, and moves forward to a front portion opposite to the rear portion of the polarizing film sheet piece to attach the polarizing film sheet piece to one surface of the panel. ### Claim 5 (depends on 1) The system of claim 1, wherein the attachment means includes an attachment roll, and a diameter of the attachment roll is 20 to 80 mm. ### Claim 6 (depends on 1) The system of claim 1, further comprising: an aligning unit, which aligns the panel to have a posture corresponding to a posture of the polarizing film sheet piece transferred to the attachment position. ### Claim 7 (depends on 6) The system of claim 6, wherein the aligning unit includes: a photographing means, which photographs the polarizing film sheet piece and the panel transferred to the attachment position to provide an image; a control means, which calculates an alignment angle of the panel based on the image provided by the photographing means; and an adsorbing means, which adsorbs the panel and horizontally rotates or shifts the panel in a state corresponding to the alignment angle calculated by the control means. ### Claim 8 (depends on 7) The system of claim 7, wherein the photographing means simultaneously photographs the polarizing film sheet piece transferred to the attachment position and the panel supplied to the attachment position. ### Claim 9 A method of manufacturing a display unit, the method comprising: carrying an optical film wherein the optical film includes a polarizing film and a release film, wherein the polarizing film includes an adhesive layer through which, a release film adheres to and is peeled from the polarizing film, wherein the carrying is conducted by a carrying unit; cutting the optical film up to a predetermined depth to form a polarizing film sheet piece on the optical film, without cutting the release film, wherein the cutting is conducted by a cutting unit; continuously supplying a panel to an attachment position, at which the polarizing film sheet piece is attached to one surface of the panel, wherein the supplying is conducted by a panel supply unit; peeling the polarizing film sheet piece from the release film, and attaching the peeled polarizing film sheet piece to one surface of the panel supplied by the panel supply unit, wherein the peeling and attaching are conducted by an attachment unit; and winding the release film peeled by the attachment unit, wherein the winding is conducted by a winding unit, wherein the peeling and attaching includes: peeling the polarizing film sheet piece from the release film through an adhering means, wherein the adhering means has an adhering property at an external side thereof, moving the adhering means to the attachment position, and making the polarizing film sheet piece face one surface of the panel in parallel; pressing the adhering means through an attachment means to attach the polarizing film sheet piece to one surface of the panel, and moving the adhering means through an adhering position, at which the adhering means adheres to the polarizing film sheet piece formed on the carried optical film, and the attachment position, and wherein the adhering means is positioned on at least a part of a surface of the moving means. ### Claim 10 (depends on 9) The method of claim 9, wherein in the peeling and attaching, the moving means is formed in a belt type and is rotated, so that the adhering means circulates while passing through the adhering position and the attachment position. ### Claim 11 (depends on 9) The method of claim 9, wherein adhering force of the adhering means to the polarizing film sheet piece is larger than the adhering force between the adhesive layer of the polarizing film sheet piece and the release film and is smaller than the adhering force between the adhesive layer of the polarizing film sheet piece and the panel. ### Claim 12 (depends on 9) The method of claim 9, wherein in the peeling and attaching, the attachment means presses a rear portion of the polarizing film sheet piece in a direction adjacent to the panel to attach the rear portion of the polarizing film sheet piece to a rear portion of the panel, and moves forward to a front portion opposite to the rear portion of the polarizing film sheet piece to attach the polarizing film sheet piece to one surface of the panel. ### Claim 13 (depends on 9) The method of claim 9, wherein the attachment means includes an attachment roll, and a diameter of the attachment roll is 20 to 80 mm. ### Claim 14 (depends on 9) The method of claim 9, further comprising: aligning the panel to have a posture corresponding to a posture of the polarizing film sheet piece transferred to the attachment position, wherein the aligning is conducted by an aligning unit. ### Claim 15 (depends on 14) The method of claim 14, wherein the aligning includes: photographing the polarizing film sheet piece and the panel transferred to the attachment position and providing an image; calculating an alignment angle of the panel based on the image; and adsorbing the panel and horizontally rotating or shifting the panel to be a state corresponding to the alignment angle. ### Claim 16 (depends on 15) The method of claim 15, wherein in the photographing, the polarizing film sheet piece transferred to the attachment position and the panel supplied to the attachment position are simultaneously photographed.