Substrate frame for bearing film-coated substrate

Abstract

The utility model discloses a substrate frame for bearing a coating substrate, which comprises a frame, a plurality of supporting rods arranged in the frame in parallel at intervals, and a plurality of abutting pieces arranged on the supporting rods and used for abutting against the coating substrate, the supporting rod is provided with a first surface and a second surface, the first surface is right opposite to the film coating substrate when the supporting rod is used, the second surface is back to the film coating substrate when the supporting rod is used, the first surface comprises a main body area and an installation area for positioning and installing the abutting piece, and the width of the main body area is narrowed relative to the width of the installation area. By narrowing the width of the main body area of the first surface, the production of coating Mura can be effectively reduced, so that the quality and the use performance of the coating substrate are improved.

Description

Technical Field

[0001] The present application relates to the technical field of coating equipment, and in particular to a substrate rack for carrying a coating substrate. Background Art

[0002] The coated substrate, such as a glass substrate, is an indispensable component of the display, and the workpiece rack is a device for carrying and transferring the glass substrate. The existing workpiece rack includes a frame, a plurality of support rods arranged in the frame, and each support rod is provided with a fastening member that abuts against the glass substrate. For example, patent CN214269353U discloses a glass substrate support device, including a support rod. Although the support rod can play a good supporting role, the support rod is heated during the coating process, which easily leads to the generation of coating Mura on the glass substrate. Mura refers to the uneven display brightness when the display is in use, with various traces, which affects the performance of the display. Utility Model Content

[0003] In view of the problems in the prior art, the present application provides a substrate rack for carrying a coated substrate, so as to effectively reduce the generation of coating Mura, thereby improving the quality and performance of the coated substrate.

[0004] The substrate rack in the present application is used to carry a coated substrate, including a frame, a plurality of support rods arranged in parallel and at intervals within the frame, and a plurality of abutting members arranged on each of the support rods and used to abut the coated substrate. The support rods have a first surface facing the coated substrate when in use and a second surface facing away from the coated substrate when in use. The first surface includes a main body area and an installation area for positioning and installing the abutting members, and the main body area is narrowed relative to the width of the installation area.

[0005] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0006] Optionally, the width of the main body area is W1, the width of the second surface is W2, and the ratio of W1 to W2 is 1 / 6 to 1 / 11.

[0007] Optionally, the longitudinal cross-section of the support rod where the main body area is located is a wedge-shaped structure.

[0008] Optionally, the thickness of the support rod where the main body area is located is 6W1-11W1, and the wedge surface angle is 55°-65°.

[0009] Optionally, the substrate rack further includes a connecting piece, the support rod has a mounting hole penetrating along the thickness direction, the connecting piece penetrates into the mounting hole from the second surface, and passes out from the first surface to be connected with the abutting piece.

[0010] Optionally, the retaining member has a connecting hole that cooperates with the connecting member, and the bottom surface of the retaining member abuts against the first surface.

[0011] Optionally, the installation area is higher than the main body area.

[0012] Optionally, the main body area is covered with a heat insulating layer.

[0013] Optionally, the end surface of the abutting member abutting against the coated substrate is an arc surface.

[0014] Compared with the prior art, the present application can effectively reduce the generation of coating Mura by narrowing the width of the first surface main area while ensuring the supporting strength of the support rod, thereby improving the quality and performance of the coated substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a substrate frame in one embodiment of the present application;

[0016] Figure 2 is an exploded view of the substrate rack;

[0017] Figure 3 A partial schematic diagram of a support rod in one embodiment;

[0018] Figure 4 It is a partial schematic diagram of the lower support rod at another angle;

[0019] Figure 5 is another partial schematic diagram of the support rod;

[0020] Figure 6 is a schematic diagram of assembling a support rod and a frame in one embodiment;

[0021] Figure 7 A partial cross-sectional view of a substrate rack and a coating substrate in one embodiment;

[0022] Figure 8 It is a schematic diagram of assembling the frame and the main frame in one embodiment;

[0023] Fig. 9 This is a diagram showing the effect of traditional substrate racks on glass substrate coating;

[0024] Fig.10 This is a graph showing the effect of the substrate rack on the coating of the glass substrate in this application.

[0025] The reference numerals in the figures are described as follows:

[0026] 100, main frame; 110, claw; 200, frame; 300, support rod; 310, first surface; 311, main body area; 312, installation area; 320, second surface; 330, installation hole; 340, folding edge; 400, fastening member; 410, connecting hole; 500, connecting member; 600, coating substrate;

[0027] W1 is the width of the main area; W2 is the width of the second surface; W3 is the width of the installation area. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] See also Figures 1 to 8 In the illustrated embodiment, the present application provides a substrate rack for carrying a coated substrate 600, comprising a frame 200, a support rod 300, and a pressing member 400, wherein a plurality of support rods 300 are provided and arranged in parallel and spaced relation within the frame 200, and a plurality of pressing members 400 are arranged spaced relation on each support rod 300, and the pressing members 400 are used to press against the coated substrate 600. When in use, the coated substrate 600 is loaded on the substrate rack, and the support rod 300 has a first surface 310 facing the coated substrate 600 and a second surface 320 facing away from the coated substrate 600, wherein the first surface 310 comprises a main body area 311 and an installation area 312, and the pressing member 400 is positioned and installed in the installation area 312, and the width of the main body area 311 is narrowed relative to the width of the installation area 312.

[0032] In a coating device, the coated substrate 600 loaded on the substrate holder generally has a coating surface facing the coating target and a support surface arranged opposite to the coating surface. The first surface 310 of the support rod 300 faces the support surface, and the pressing member 400 abuts against the support surface. The support rod 300 is a metal rod, such as a titanium rod, which can provide good support strength. However, after the metal rod is heated, it generates thermal radiation to the coated substrate 600, resulting in the generation of coating Mura, thereby affecting the performance of the coated substrate 600. Without affecting the abutment of the pressing member 400 against the coated substrate 600, the present application can reduce the thermal radiation of the first surface 310 to the coated substrate 600 by narrowing the width of the main body region 311, thereby effectively reducing coating Mura and being beneficial to improving the performance of the coated substrate 600.

[0033] Taking into account the support strength of the support rod 300 and coating Mura comprehensively, in one embodiment, the width of the main body region 311 is W1, the width of the second surface 320 is W2, and the ratio of W1 to W2 is 1 / 6 to 1 / 11, for example, 1 / 9 to 1 / 11, and for another example, 1 / 10. Refer to Figure 3 、 4 。

[0034] In another embodiment, the width of the installation region 312 is narrowed relative to the width of the second surface 320. The width of the installation region 312 is W3, and W1 < W3 < W2, which can further reduce the thermal radiation of the first surface 310 to the coated substrate 600.

[0035] Refer to Figure 5 In the embodiment shown, from a structural perspective, the longitudinal section of the support rod 300 where the main body region 311 is located is a wedge-shaped structure. Further, the thickness of the support rod 300 where the main body region 311 is located is 6W1 to 11W1, for example, 10W1, and the wedge angle of the support rod 300 where the main body region 311 is located is 55° to 65°, preferably 60°, which can effectively ensure the support strength of the support rod 300.

[0036] Specifically, the widths of the first surface 310 and the second surface 320 of the traditional support rod 300 are basically equal, and the width is 18 to 22 mm. Compared with the traditional support rod 300, in the present application, the widths of the main body region 311 and the installation region 312 are narrowed relative to the width of the second surface 320. For example, the width of the main body region 311 is 2 to 3 mm, and the width of the installation region 312 is 6 to 10 mm. For example, the width of the second surface 320 is 20 mm, the width of the main body region 311 is 2 mm, the width of the installation region 312 is 8 mm, the thickness of the support rod 300 where the main body region 311 is located is 19 mm, and the wedge angle of the support rod 300 where the main body region 311 is located is 60°. The design of the present application can reduce the thermal radiation range of the first surface 310 to the coated substrate 600, thereby reducing the generation of coating Mura.

[0037] See also Fig. 9 , 10 The coating substrate is, for example, a glass substrate. A conventional substrate rack and a substrate rack of the present application are used to carry glass substrates of the same mass. The coating is performed under the same coating process conditions. After the coating is completed, the coating Mura of each glass substrate is detected. Figure 8 The coated substrate carried by the traditional substrate rack has obvious multiple Mura traces (indicated by arrows), and the width of each Mura is about 15mm. Fig. 9 For the glass substrate supported by the substrate frame of the present application, there is basically no Mura mark on the glass substrate after coating.

[0038] See also Figure 1 , 2 The substrate rack includes a main frame 100, the main frame 100 has a loading area for placing the coated substrate 600, and the frame 200 is fixed to the main frame 100. The frame 200 is a square frame 200, which is surrounded by four metal rods connected end to end, and a fastening member 400 for abutting the coated substrate 600 is fixed on a side of each metal rod facing the coated substrate 600.

[0039] See also Figure 8 The frame 200 and the main frame 100 are fixed in a detachable manner. For example, in one embodiment, the main frame 100 is provided with a claw 110, and the claw 110 is provided with a plurality of intervals, and each claw 110 can be engaged with a corresponding metal rod.

[0040] Specifically, each support rod 300 is placed upright in the frame 200, for example, four support rods 300 are placed upright in the frame 200. For easy installation, both ends of each support rod 300 along the length direction are bent toward the coated substrate 600 to form a folded edge 340, which can be overlapped on the frame 200 and fixed with fasteners.

[0041] 5 and 6, the coated substrate 600 is a glass substrate, and the end surface of the fastening member 400 abutting against the coated substrate 600 is an arc surface, which avoids the generation of tip particles and tip spots on the surface of the coated substrate 600, which is beneficial to improving the quality and performance of the coated substrate 600.

[0042] In order to fix the abutting member 400, the substrate frame further includes a connecting member 500. Each support rod 300 has a mounting hole 330 penetrating along the thickness direction. During installation, the connecting member 500 penetrates the mounting hole 330 from the second surface 320 and passes out from the first surface 310 to connect with the abutting member 400. For example, in the figure, each support rod 300 has a mounting hole 330 penetrating in the mounting area 312. The connecting member 500 penetrates the mounting hole 330 from the second surface 320 and passes out from the top of the mounting area 312 to connect with the abutting member 400.

[0043] Accordingly, the abutting member 400 has a connection hole 410 that matches with the connecting member 500, and the bottom surface of the abutting member 400 is against the first surface 310. The connecting member 500 is, for example, a bolt, and the end of the bolt matches with the connection hole 410 of the abutting member 400, so as to fix the abutting member 400 on the first surface 310.

[0044] In one embodiment, the length of the support rod 300 is L, and a mounting hole 330 is provided every 1 / 13L to 1 / 11L, which helps to install a certain number of fastening members 400 to fasten the coated substrate 600 while ensuring the mechanical strength of the support rod 300.

[0045] See also Figure 5 In one embodiment, the mounting area 312 is arranged higher than the main body area 311. The main body area 311 may be covered with a heat insulation layer (not shown), such as a polyetheretherketone (PEEK) heat insulation layer. The abutting member 400 is a heat insulation member, such as a heat insulation sleeve, and its bottom may cover most of the mounting area 312. These designs can further reduce the heat radiation of the main body area 311 to the coated substrate 600.

[0046] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0047] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A substrate rack for carrying a film-coated substrate, comprising a frame, a plurality of support rods arranged in parallel and at intervals in the frame, and a plurality of abutting members arranged on each of the support rods and used to abut against the film-coated substrate, characterized in that: The support rod has a first surface facing the coated substrate when in use and a second surface facing away from the coated substrate when in use. The first surface includes a main body area and an installation area for positioning and installing the abutting member. The main body area is narrower in width than the installation area.

2. The substrate rack according to claim 1, characterized in that: The width of the main body region is W1, the width of the second surface is W2, and the ratio of W1 to W2 is 1 / 6 to 1 / 11.

3. The substrate rack according to claim 2, characterized in that: The longitudinal cross-section of the support rod where the main body area is located is a wedge-shaped structure.

4. The substrate rack according to claim 3, characterized in that: The thickness of the support rod where the main body area is located is 6W1-11W1, and the wedge surface angle is 55°-65°.

5. The substrate rack according to claim 2, characterized in that: The substrate rack further includes a connecting piece, the supporting rod has a mounting hole penetrating along the thickness direction, the connecting piece penetrates into the mounting hole from the second surface, and penetrates out from the first surface to be connected with the abutting piece.

6. The substrate rack according to claim 5, characterized in that: The abutting member has a connecting hole matched with the connecting member, and the bottom surface of the abutting member is in contact with the first surface.

7. The substrate rack according to claim 1, characterized in that: The installation area is higher than the main body area.

8. The substrate rack according to claim 6, characterized in that: The main body area is covered with a thermal insulation layer.

9. The substrate rack according to claim 1, characterized in that: The end surface of the abutting member abutting against the coating substrate is an arc surface.

Images