# US 9,521,791 B2 · Assembly equipment and assembly method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,521,791 B2 - Document ID: US9521791B2 - Status: Granted - Kind: B2 - Application number: 15/095,290 - Filed: 2016-04-11 - Published: 2016-11-03 - Granted: 2016-12-13 - Earliest claimed: 2015-04-29 - Assignees: Boe Technology Group Co., Ltd. - Applicants: Boe Technology Group Co., Ltd. - Inventors: Zhongbao Wu - Web page: https://patentgrep.com/patent/US9521791B2 ## CPC - H05K 13/00: Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components - G02F 1/1303: {Apparatus specially adapted to the manufacture of LCDs} - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - 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 invention provides an assembly equipment and an assembly method thereof. The assembly equipment is used for assembling a flexible screen with a curved backplane and includes a supporting part used for supporting and fixing the curved backplane and a holding part used for holding the flexible screen and assembling the flexible screen with the curved backplane in a fit manner. The assembly equipment is provided with the supporting part and the holding part to stably fix the curved backplane and assemble the flexible screen with the curved backplane in a fit manner quickly and accurately, thereby realizing high-efficiency assembly of the flexible screen and the curved backplane, and meanwhile realizing a high yield of display panels formed by assembling the flexible screen and the curved backplane. ## Claims ### Claim 1 An assembly equipment for assembling a flexible screen with a curved backplane, comprising: a supporting part used for supporting and fixing the curved backplane; and a holding part used for holding the flexible screen and assembling the flexible screen with the curved backplane in a fit manner. ### Claim 2 (depends on 1) The assembly equipment of claim 1, wherein the supporting part comprises a supporting platform and a plurality of limiting columns which are movably arranged on the supporting platform, the plurality of limiting columns are arranged along edges of the curved backplane, and tops of the limiting columns are configured to contact the curved backplane. ### Claim 3 (depends on 2) The assembly equipment of claim 2, wherein the curved backplane comprises an edge end face, an upper surface fit to the flexible screen and a lower surface back-to-back with the upper surface, and the lower surface and the edge end face are in contact with the tops of the limiting columns; and the top of the limiting column is a L-shaped step, a step surface of the L-shaped step is adapted and fit to a corresponding region of the lower surface, and a side face adjacent to the step surface of the L-shaped step is configured to contact the edge end face. ### Claim 4 (depends on 2) The assembly equipment of claim 2, wherein the curved backplane comprises an edge end face, an upper surface fit to the flexible screen and a lower surface back-to-back with the upper surface, and the lower surface and the edge end face are in contact with the tops of the limiting columns; the top of the limiting column is a L-shaped step, a supporting ball capable of rotating 360° is embedded on a step surface of the L-shaped step, an exposed top of the supporting ball is higher than the step surface, and the supporting ball is configured. to contact a corresponding point on the lower surface; a side face adjacent to the step surface of the L-shaped step is configured to contact the edge end face; and a unidirectional elastic mechanism is arranged below the supporting ball, and the unidirectional elastic mechanism enables the supporting ball to approach or depart from the supporting platform along a direction perpendicular to the supporting platform. ### Claim 5 (depends on 2) The assembly equipment of claim 2, wherein the supporting part further comprises a light source; on one side along a width direction of the curved backplane of the supporting platform, the light source is arranged on a central position along a length direction of the curved backplane of the supporting platform; and the light source emits light, a propagation direction of which is perpendicular to the supporting platform. ### Claim 6 (depends on 2) The assembly equipment of claim 2, wherein multiple rows of first holes are arranged on the supporting platform along a direction parallel to the width direction of the curved backplane, the multiple rows of first holes are spaced from each other, and the first holes are used for fixing the limiting columns supporting a width side of the curved backplane; and multiple rows of second holes are arranged on the supporting platform along a direction parallel to the length direction of the curved backplane, the multiple rows of second holes are spaced from each other, and the second holes are used for fixing the limiting columns supporting a length side of the curved backplane. ### Claim 7 (depends on 6) The assembly equipment of claim 6, wherein each row of the first holes comprises one or more first strip-shaped holes, and a length direction of the first strip-shaped hole is parallel to the width direction of the curved backplane; and each row of the second holes comprises one or more second strip-shaped holes, and a length direction of the second strip-shaped hole is parallel to the length direction of the curved backplane. ### Claim 8 (depends on 5) The assembly equipment of claim 5, wherein the holding part comprises an expansion link, a photosensitive element arranged on the expansion link, a plane frame connected to an end part of the expansion link and a plurality of absorption elements arranged on the plane frame; and the plurality of absorption elements are located on one side facing the supporting platform of the plane frame for adsorbing the flexible screen; the photosensitive element is arranged on one side facing the supporting platform of the expansion link; and the expansion link is capable of driving the plane frame to move along the length direction and the width direction of the curved backplane and along the direction perpendicular to the supporting platform, to enable the photosensitive element to receive the light emitted by the light source. ### Claim 9 (depends on 8) The assembly equipment of claim 8, wherein three rows of the absorption elements are arranged on the plane frame, the three rows of the absorption elements are parallel to and spaced from each other, the absorption elements in the middle row are used for absorbing a center line of the flexible screen along the width direction thereof, and two rows of the absorption elements on both sides are used for absorbing two opposite edges of the flexible screen along the width direction thereof. ### Claim 10 (depends on 9) The assembly equipment of claim 9, wherein each row of the absorption elements comprises a plurality of absorption elements, and the plurality of absorption elements are arranged at equal intervals. ### Claim 11 (depends on 10) The assembly equipment of claim 10, wherein each one of the two rows of the absorption elements on both sides includes a suction cup and a connector, the suction cup is connected with one end of the connector, and the other end of the connector is connected with the plane frame; each one of the absorption elements in the middle row includes a suction cup, a telescopic cylinder and a connector, the telescopic cylinder is connected between the suction cup and the connector, and the connector is connected with the plane frame; and the suction cup is used for adsorbing the flexible screen; and the telescopic cylinder is capable of making telescopic movement under an action of a gas source to change the flexible screen from a planar state into a curved surface state. ### Claim 12 (depends on 1) An assembly method for assembling the assembly equipment of claim 1, comprising fixing the curved backplane on the supporting part; and holding the flexible screen by the holding part, and assembling the flexible screen with the curved backplane in a fit manner. ### Claim 13 (depends on 12) The assembly method of claim 12, specifically comprising: adjusting the positions of the limiting columns on the supporting platform according to the size of the curved backplane; placing the curved backplane on the limiting columns; adsorbing the flexible screen in the planar state with the adsorption elements in the holding part, moving the expansion link in the holding part to adjust a relative position of the flexible screen with respect to the curved backplane, until the photosensitive element on the expansion link receives the light emitted by the light source on the supporting platform; expanding and contracting the telescopic cylinders of the adsorption elements in the middle row to change the flexible screen from the planar state into the curved surface state, and adapting the flexible screen in the curved surface state to the shape of the curved backplane; and driving the flexible screen with the expansion link to move towards the curved backplane along the direction perpendicular to the supporting platform, until the flexible screen is fit to the curved backplane.