KR-20260065723-A - ELECTRONIC DEVICE AND METHOD OF MANUFACTURING THE SAME

KR20260065723AKR 20260065723 AKR20260065723 AKR 20260065723AKR-20260065723-A

Abstract

A method for manufacturing an electronic device provides a preliminary display device comprising a display panel and a polarizer laminated on the display panel, and having an aperture processing area. A crack point is established where a virtual vertical line perpendicular to the stretching axis of the polarizer and passing through the center of the aperture processing area intersects an aperture processing line defining the aperture processing area. An intersection point located upstream from the crack point in the direction of laser movement is established on the aperture processing line. An aperture line is formed by irradiating a laser along the aperture processing line from the intersection point.

Inventors

육근우

Assignees

삼성디스플레이 주식회사

Dates

Publication Date: 20260511
Application Date: 20250509
Priority Date: 20241101

Claims (20)

A step of providing a preliminary display device comprising a display panel and a polarizing plate laminated on the display panel, and having an aperture processing area defined by an aperture processing line; and The method includes the step of forming an opening line by irradiating a laser onto the above-mentioned opening processing line. A method for manufacturing an electronic device, wherein the laser is irradiated from an intersection point spaced apart from the laser movement direction on the aperture processing line with respect to a crack point where a virtual vertical line perpendicular to the stretching axis of the polarizer and passing through the center of the aperture processing area intersects the aperture processing line.
In claim 1, the step of forming the opening line is, A step of forming a cutting start line by irradiating a laser toward the intersection point from a starting point adjacent to the intersection point within the opening processing area; A step of forming an opening formation line by irradiating a laser along the opening processing line from the above intersection point; and A method for manufacturing an electronic device, comprising the step of forming a cutting end line by irradiating a laser from the intersection point to a termination point adjacent to the intersection point within the opening processing area after the above-mentioned opening forming line reaches the above-mentioned intersection point.
A method for manufacturing an electronic device according to paragraph 2, wherein the angle formed by the intersection point, the center of the opening processing area, and the crack point exceeds 0 ° and is less than 45 ° .
In paragraph 2, the crack point includes a first crack point and a second crack point facing each other with the center in between, and The above intersection points include a first intersection point and a second intersection point adjacent to the first crack point and the second crack point, respectively, and The above starting point includes a first starting point and a second starting point adjacent to the above first intersection point and the above second intersection point, respectively, and A method for manufacturing an electronic device, wherein the above-mentioned termination point includes a first termination point and a second termination point adjacent to the above-mentioned first intersection point and the above-mentioned second intersection point, respectively.
A method for manufacturing an electronic device according to claim 4, wherein the first intersection point and the second intersection point are symmetric with respect to the center of the opening processing area.
In paragraph 4, the opening processing area is divided into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant along the laser movement direction from the first crack point, and A method for manufacturing an electronic device, wherein the first intersection point is located on the opening processing line portion of the first quadrant and the second intersection point is located on the opening processing line portion of the third quadrant.
In paragraph 6, the first starting point and the first ending point are located within the first quadrant, and A method for manufacturing an electronic device in which the second starting point and the second ending point are located within the third quadrant.
A method for manufacturing an electronic device according to claim 4, wherein the step of forming the opening line comprises a first sub-cutting using the first starting point, the first intersection point, and the first ending point, and a second sub-cutting using the second starting point, the second intersection point, and the second ending point.
A method for manufacturing an electronic device according to claim 8, wherein the first sub-cutting and the second sub-cutting are performed alternately and repeatedly.
A method for manufacturing an electronic device according to paragraph 2, wherein the step of forming the opening line comprises forming a tip portion in an area corresponding to the intersection point.
A method for manufacturing an electronic device according to claim 1, further comprising the step of forming an opening by removing the polarizing plate and the display panel portion cut by the opening line after the step of forming the opening line.
A method for manufacturing an electronic device according to claim 11, further comprising the step of laminating a window substrate covering the opening on the polarizing plate.
Display panel; Polarizing plate laminated on the above display panel; and It includes an opening penetrating the polarizing plate and the display panel and including a tip portion, An electronic device having a tip portion that is perpendicular to the stretching axis of the polarizer and has an intersection point where a virtual vertical line passing through the center of the aperture meets an aperture line defining the perimeter of the aperture, and is spaced apart along the aperture line.
In paragraph 13, the tip portion has a recessed curved surface in the direction of the opening outward, and An electronic device in which the distance between the center point of the opening line included in the tip portion and the peak point of the curved surface is 10 μm to 90 μm.
An electronic device according to claim 13, wherein the angle between the tip portion, the center of the opening, and the intersection point exceeds 0 ° and is less than 45 ° .
In paragraph 15, the above bridge is an electronic device with a diameter of 1 o to 40 o .
An electronic device according to claim 13, wherein the tip portion comprises a first tip portion and a second tip portion spaced apart along the opening line.
An electronic device according to claim 17, wherein the first tip portion and the second tip portion are formed at positions symmetrical to each other with respect to the center of the opening.
An electronic device according to claim 13, further comprising a touch sensor layer disposed between the display panel and the polarizer, wherein the opening penetrates the polarizer, the touch sensor layer, and the display panel together.
An electronic device according to claim 13, further comprising a functional element inserted into or positioned to overlap with the opening, and comprising at least one of an optical element, an acoustic element, and a sensor element.

Description

ELECTRONIC DEVICE AND METHOD OF MANUFACTURING THE SAME The embodiments of the present application relate to an electronic device and a method for manufacturing the same. More specifically, the invention relates to an electronic device comprising a display panel and a method for manufacturing the same. In a display device such as an Organic Light Emitting Diode (OLED) display device and a Liquid Display Device (LCD), a display substrate including, for example, a Thin Film Transistor (TFT) and various wirings is provided. A display structure including electrodes and a light-emitting layer may be formed on the display substrate. Recently, electronic devices that implement display functions by combining sensors, cameras, etc. with display devices are being implemented in the form of smart tones, monitors, and automotive screens. FIG. 1 is a schematic perspective view of an electronic device according to exemplary embodiments. FIG. 2 is a schematic partial enlarged plan view showing the structure around the opening of a display device according to exemplary embodiments. FIG. 3 is a schematic cross-sectional view showing a display panel included in an electronic device according to exemplary embodiments. FIGS. 4 and FIGS. 5 are schematic cross-sectional views of an electronic device according to exemplary embodiments. FIGS. 6 to 9 are schematic perspective views illustrating an opening formation mechanism according to exemplary embodiments. FIG. 10 is a schematic partial enlarged plan view illustrating the damage mechanism occurring in the formation of an opening according to a comparative example. FIG. 11 is a schematic cross-sectional view illustrating a method for manufacturing an electronic device according to exemplary embodiments. FIGS. 12 to 18 are schematic partial enlarged plan views illustrating a method for manufacturing an electronic device according to exemplary embodiments. FIG. 19 is a schematic cross-sectional view illustrating a method for manufacturing an electronic device according to exemplary embodiments. FIG. 20 is a schematic partial enlarged plan view illustrating the shape of an opening of an electronic device according to exemplary embodiments. FIG. 21 is a schematic partial enlarged plan view of the area around the intersection (tip portion) of the opening formed according to exemplary embodiments. FIG. 22 is an image of an area including the intersection (tip portion) of an opening formed according to exemplary embodiments. FIG. 23 is an image of an area not including the intersection (tip portion) of the opening formed according to exemplary embodiments. Hereinafter, embodiments of the present invention will be described in more detail with reference to the attached drawings. In this case, the same reference numerals are used for identical components in the drawings, and redundant descriptions of identical components are omitted. The embodiments disclosed in the attached drawings are exemplary and should be understood to include all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention. As used in this specification, terms such as "on," "connected," and "combined" include not only direct placement/connection/combination but also cases where other components are placed in between. Terms such as "first," "second," "below," "lower side," "above," and "upper side" are used as relative concepts to distinguish different components or locations, and do not specify absolute positions or order. FIG. 1 is a schematic perspective view of an electronic device according to exemplary embodiments. According to exemplary embodiments, the electronic device may be implemented in the form of a display device including a screen on which an image is displayed. Hereinafter, a display device (DD) may be described as an exemplary embodiment of the electronic device. In FIG. 1, the first direction and the second direction may refer to two directions that are parallel to the display surface of the display device (DD) and perpendicular to each other. For example, the first direction may correspond to the X direction (row direction) and the second direction may correspond to the Y direction (column direction) of the display device (DD). The third direction may be perpendicular to the first direction and the second direction. The third direction may correspond to the Z direction (thickness direction) of the display device (DD). The definition of the direction described above can be applied identically to the following drawings. Referring to FIG. 1, the display device (DD) may include a display area (DA) and a non-display area. The non-display area may include a first non-display area (NDA1) and a second non-display area (NDA2). According to exemplary embodiments, the display area (DA) may include a display element, such as a light-emitting element that emits light. The second non-display area (NDA2) may include the periphery of the display device. In one embo