CN-112698523-B - Method for manufacturing display module
Abstract
The method of manufacturing a display module according to an embodiment of the present invention may include a step of disposing a display panel on a stage including a first magnet having a first pole, a step of disposing an adhesive member including a plurality of conductive particles on the display panel, a step of disposing a circuit part on the adhesive member, a step of disposing a head part including a second magnet having a second pole different from the first pole on the circuit part, a step of aligning the plurality of conductive particles using the first magnet and the second magnet, and a step of electrically connecting the display panel and the circuit part.
Inventors
- ZHENG ZHEHAO
Assignees
- 三星显示有限公司
Dates
- Publication Date
- 20260512
- Application Date
- 20200616
- Priority Date
- 20191007
Claims (7)
- 1. A method of manufacturing a display module, comprising: A step of arranging a display panel on a stage, the stage including a first magnet having a first pole; a step of disposing an adhesive member including a plurality of conductive particles on the display panel; A step of disposing a circuit portion on the adhesive member; A step of disposing a head on the circuit portion, the head including a second magnet having a second pole different from the first pole; a step of aligning the plurality of conductive particles using the first magnet and the second magnet, and A step of electrically connecting the display panel and the circuit portion, Wherein the step of electrically connecting the display panel and the circuit portion includes the step of heating and pressurizing the adhesive member with the head portion; Wherein the step of aligning the plurality of conductive particles includes the step of forming a first region having the first pole and a second region having the second pole on each of the plurality of conductive particles, and the step of causing repulsive force to act between the plurality of conductive particles.
- 2. The method of manufacturing a display module according to claim 1, wherein the aligning the plurality of conductive particles comprises forming a magnetic field in a thickness direction of the display panel using the first magnet and the second magnet.
- 3. The method of manufacturing a display module of claim 1, wherein the step of aligning the plurality of conductive particles further comprises the step of aligning the first region adjacent the head and the second region adjacent the mesa.
- 4. The method of manufacturing a display module according to claim 1, wherein the plurality of conductive particles are spaced apart from each other at a prescribed interval on a plane.
- 5. The method of manufacturing a display module according to claim 1, wherein each of the plurality of conductive particles includes a core portion and a coating portion that covers the core portion and includes a ferromagnetic material, and The step of aligning the plurality of conductive particles includes the step of magnetizing the coating portion using the first magnet and the second magnet.
- 6. The method of manufacturing a display module according to claim 1, wherein the step of aligning the plurality of conductive particles is performed simultaneously with the step of electrically connecting the display panel and the circuit portion.
- 7. The method of manufacturing a display module according to claim 1, wherein the step of disposing the circuit portion includes a step of bringing a bottom surface of the circuit portion into contact with the adhesive member, and The bottom surface is flat, and the circuit portion includes an insulating layer and a pad electrically connected to the display panel, a portion of the bottom surface being the pad and another portion of the bottom surface being the insulating layer.
Description
Method for manufacturing display module Technical Field The present invention relates to an apparatus for manufacturing a display module and a method of manufacturing a display module, which have improved reliability. Background The display module includes a display panel that displays an image and a circuit portion. The display panel may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels connected to the plurality of gate lines and the plurality of data lines. The display panel may be connected to a circuit part that supplies an electric signal required for displaying an image to the gate line or the data line. The circuit portion and the display panel may be electrically connected to each other through an anisotropic conductive film (Anisotropic conductive film). In addition, the circuit portion and the display panel can be electrically connected by ultrasonic (ultrasonography) bonding without using an anisotropic conductive film. Disclosure of Invention Technical problem to be solved The invention aims to provide a device for manufacturing a display module with improved reliability and a method for manufacturing the display module. Solution to the problem The method of manufacturing a display module according to an embodiment of the present invention may include a step of disposing a display panel on a stage including a first magnet having a first pole, a step of disposing an adhesive member including a plurality of conductive particles on the display panel, a step of disposing a circuit part on the adhesive member, a step of disposing a head part on the circuit part, the head part including a second magnet having a second pole different from the first pole, a step of aligning the plurality of conductive particles using the first magnet and the second magnet, and a step of electrically connecting the display panel and the circuit part. The aligning of the plurality of conductive particles may include forming a magnetic field in a thickness direction of the display panel using the first magnet and the second magnet. The step of aligning the plurality of conductive particles may include the step of forming a first region having the first pole and a second region having the second pole on each of the plurality of conductive particles. The step of aligning the plurality of conductive particles may further include the step of aligning the first region adjacent to the head and the second region adjacent to the stage. The step of aligning the plurality of conductive particles may further include a step of allowing repulsive force to act between the plurality of conductive particles. The plurality of conductive particles may be spaced apart from each other at a predetermined interval in a plane. Each of the plurality of conductive particles includes a core portion and a coating portion, the coating portion covers the core portion and includes a ferromagnetic material, and the step of aligning the plurality of conductive particles may include the step of magnetizing the coating portion using the first magnet and the second magnet. The step of electrically connecting the display panel and the circuit portion may include a step of heating and pressurizing the adhesive member by the head portion. The step of aligning the plurality of conductive particles and the step of electrically connecting the display panel and the circuit portion may be performed simultaneously. The step of disposing the circuit portion includes a step of bringing a bottom surface of the circuit portion into contact with the adhesive member, and the bottom surface is flat, and the circuit portion includes an insulating layer and a pad electrically connected to the display panel, and a part of the bottom surface may be the pad and another part of the bottom surface may be the insulating layer. ADVANTAGEOUS EFFECTS OF INVENTION According to the apparatus for manufacturing a display module and the method for manufacturing a display module of the present invention, in the process of attaching the display panel and the circuit part, a plurality of conductive particles in the adhesive member can be aligned. By aligning the conductive particles, the reliability of the electrical connection state of the display panel and the circuit portion can be improved. Accordingly, an apparatus for manufacturing a display module and a method of manufacturing a display module with improved reliability can be provided. Drawings Fig. 1 is a perspective view of a display panel according to an embodiment of the present invention. Fig. 2 is a plan view of a display module according to an embodiment of the present invention. Fig. 3 is a flowchart illustrating a method of manufacturing a display module according to an embodiment of the present invention. Fig. 4 is a perspective view of an apparatus for manufacturing a display module according to an embodiment of the present invention. FIG. 5 is a cross-sectional view taken along a plan