Substrate support device

Abstract

The embodiment of the present application discloses a substrate support device, including a base, a support rod, a driving plate, a push-pull rod, and a driving member. The base includes a base body and a bottom plate located at two opposite ends of the base body. The end of the base body is slidably connected to the bottom plate. The first end of the support rod is fixedly connected to the base body. The second end of the support rod is fixedly connected to a support pin, which is used to support the substrate. The driving plate is arranged on the base body and is linked to the base body. The push-pull rod is arranged on one side of the driving plate and is fixedly connected to the driving plate. The driving member drives the push-pull rod to move in a first direction. When the push-pull rod moves in the first direction, the driving plate is synchronously driven to move in the first direction, and the base body and the support rod move in a second direction intersecting with the first direction. Through the linkage design between the above components, the contact position between the support pin and the substrate can be changed by only driving the push-pull rod to move in the first direction, and there is no need for cavity opening and equipment modification.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a substrate supporting device. Background Art

[0002] With the development of display panel technology, the resolution of the picture is getting higher and higher, and the pixels are getting smaller and smaller. The panel production process is becoming more and more sensitive to uneven temperature, uneven electric field, and uneven concentration of the working environment atmosphere, requiring the contact parts of the substrate, especially the contact parts of the pixel area, to be uniform.

[0003] During the panel production process, support pins are needed to support the substrate. In this case, there are three ways to achieve uniform contact points in the pixel area: ① Minimize the contact area between the support pins and the substrate; ② Improve the material of the support pins so that the temperature, electric field and other conditions of the contact position and other non-contact positions are consistent; ③ Adjust the distribution of the support pins so that the support pins fall in the invalid display area outside the pixel. In method ③, after the support equipment is designed and manufactured, the distribution of the support pins is fixed, and different panel arrangements are handled by choosing whether to raise the support pins or not. When the arrangement of the panel changes, the machine needs to be shut down to change and modify the distribution of the support pins. Shutdowns will result in low equipment utilization rates, damage production capacity and efficiency; frequent modification operations may bring particulate matter into the equipment and destroy the stability and effective life of the equipment;

[0004] Since the position of the support pins is fixed, although the support pins can be controlled to rise or not rise by driving the motor to correspond to different panel arrangements, this method has limited corresponding capabilities. If a panel arrangement that was not considered at the beginning of the support device design appears, some support pins may still inevitably fall on the pixel area. When the display panel is lit, bright or dark spots will appear at the contact position of the support pins, resulting in poor display of the product. Summary of the invention

[0005] An embodiment of the present invention provides a substrate supporting device to solve the technical problem that the existing substrate supporting device cannot completely prevent the supporting needles from falling on the pixel area due to the fixed position of the supporting needles, resulting in poor display of the product.

[0006] To solve the above problems, the technical solution provided by the present invention is as follows:

[0007] An embodiment of the present invention provides a substrate supporting device, comprising:

[0008] A base, comprising a base body and bottom plates located at two opposite ends of the base body, wherein the ends of the base body are slidably connected to the bottom plates;

[0009] A support rod, wherein a first end of the support rod is fixedly connected to the base body, and a second end of the support rod is fixedly connected to a support pin, and the support pin is used to support the substrate;

[0010] A driving plate, disposed on the base body and linked to the base body;

[0011] A push-pull rod, disposed on one side of the driving plate and fixedly connected to the driving plate;

[0012] A driving member, wherein the driving member drives the push-pull rod to move along a first direction; wherein,

[0013] When the push-pull rod moves along the first direction, the driving plate is simultaneously driven to move along the first direction, and the base body and the support rod move along a second direction intersecting with the first direction.

[0014] In at least one embodiment of the present invention, a guide groove is provided on a side of the driving plate facing the base body, and a roller is provided on a side of the base body facing the driving plate, and the roller rolls in the guide groove.

[0015] In at least one embodiment of the present invention, a component length of the guide groove along the second direction is greater than a maximum displacement of the push-pull rod in the first direction.

[0016] In at least one embodiment of the present invention, a component length of the guide groove along the second direction is 20 to 70 mm.

[0017] In at least one embodiment of the present invention, the guide groove has a shape of either a straight line or an arc.

[0018] In at least one embodiment of the present invention, the substrate supporting device further comprises a linkage mechanism, and the push-pull rod is linked to the supporting rod via the linkage mechanism; when the push-pull rod moves along the first direction, the support rod is synchronously driven to move along a third direction, and the third direction is perpendicular to the plane formed by the first direction and the second direction.

[0019] In at least one embodiment of the present invention, the linkage mechanism includes a guide rod and a pulley passing through the guide rod, one end of the guide rod is fixedly connected to the support rod; the side of the push-pull rod facing away from the base includes two surfaces with different heights, and the pulley slides on the two surfaces, synchronously driving the support rod to move along the third direction.

[0020] In at least one embodiment of the present invention, the side of the push-pull rod facing away from the base includes a first groove and a second groove, the first groove and the second groove are connected by a slope, and the pulley slides in the first groove, the slope and the second groove.

[0021] In at least one embodiment of the present invention, the first end of the support rod is fixedly connected to the base body via an elastic member.

[0022] In at least one embodiment of the present invention, the bottom plate includes a guide rail extending along the second direction, and the end of the base body slides in the guide rail.

[0023] The beneficial effects of the present invention are as follows: a substrate support device includes a base, a support rod, a driving plate, a push-pull rod, and a driving member, wherein the base includes a base body and bottom plates located at two opposite ends of the base body, the end of the base body is slidably connected to the bottom plate, the first end of the support rod is fixedly connected to the base body, the second end of the support rod is fixedly connected to a support pin, the support pin is used to support the substrate, the driving plate is disposed on the base body and is linked to the base body, the push-pull rod is disposed on one side of the driving plate and is fixedly connected to the driving plate, the driving member drives the push-pull rod to move in a first direction, when the push-pull rod moves in the first direction, the driving plate is synchronously driven to move in the first direction, and the base body and the support rod move in a second direction intersecting with the first direction. Through the linkage design between the above components, the contact position between the support pin and the substrate can be changed by only driving the push-pull rod to move in the first direction, and there is no need for cavity opening and equipment modification. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a substrate supporting device provided in an embodiment of the present invention;

[0025] Figure 2 Another schematic diagram of the three-dimensional structure of the substrate support device provided by the embodiment of the present invention;

[0026] Figure 3 A schematic plan view of a substrate supporting device provided by an embodiment of the present invention;

[0027] Figure 4 A schematic plan view of the movement of the support pins of the substrate support device provided by an embodiment of the present invention;

[0028] Figure 5 A cross-sectional schematic diagram of a substrate supporting device provided by an embodiment of the present invention with supporting pins hidden;

[0029] Figure 6 A cross-sectional schematic diagram of a substrate supporting device provided in an embodiment of the present invention showing that supporting pins are lifted. DETAILED DESCRIPTION

[0030] The following descriptions of the embodiments are made with reference to the attached drawings to illustrate specific embodiments in which the present invention may be implemented. The directional terms mentioned in the present invention, such as [up], [down], [front], [back], [left], [right], [inside], [outside], [side], etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the drawings, units with similar structures are represented by the same reference numerals.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] The present invention aims at the technical problem that the existing substrate supporting device has a fixed position of the supporting needles, which causes the supporting needles to inevitably fall on the pixel area, resulting in bright or dark spots at the contact positions of the supporting needles, leading to poor product display. This embodiment is proposed to overcome this defect.

[0033] See also Figure 1 and Figure 2An embodiment of the present invention provides a substrate supporting device 100 , which includes a base 10 , a supporting rod 30 , a driving plate 50 , a push-pull rod 60 , a driving member 70 and a housing 20 . The base 10 includes a base body 11 and a bottom plate 12 located at two opposite ends of the base body 11, and the ends of the base body 11 are slidably connected to the bottom plate 12; the base body 11 is used to carry the support rod 30, the first end of the support rod 30 is fixedly connected to the base body 11, and the second end of the support rod 30 is fixedly connected to a support pin 40, and the support pin 40 can be raised and lowered in the vertical direction to support the substrate; the driving plate 50 is arranged on the base body 11, and the driving plate 50 is linked to the base body 11; the push-pull rod 60 is arranged on one side of the driving plate 50 and is fixedly connected to the driving plate 50, and the driving member 70 is used to drive the push-pull rod 60 to move along the first direction X, and the driving plate 50 is displaced on the horizontal plane under the action of the push-pull rod 60, driving the base body 11 to move, so as to control the movement of the support pin 40 on the support rod 30 on the horizontal plane. The housing is located outside the substrate supporting device 100 , and an opening is provided in the housing. The opening at least exposes the supporting pins 40 on the supporting rods 30 .

[0034] Specifically, when the push-pull rod 60 moves along the first direction X, the driving plate 50 is driven to move along the first direction X simultaneously, and the base body 11 and the support rod 30 move along the second direction Y.

[0035] The driving member 70 can control the movement of one of the supporting pins 40 in the second direction Y, and can also control the movement of a plurality of the second supporting pins 40 in the second direction Y at the same time. Figure 3 As shown, the support rod 30 includes a first branch 31. When there are multiple first branches 31, the multiple first branches 31 are spaced apart from each other and arranged in parallel. At least one support needle 40 is fixedly connected to any one of the first branches 31. When the driving member 70 drives the push-pull rod 60 to move in the first direction X, the support needles 40 on the multiple first branches 31 simultaneously undergo the same displacement in the second direction Y.

[0036] In the embodiment of the present invention, the first direction X and the second direction Y intersect, and optionally, the first direction X and the second direction Y are perpendicular, and the plane formed by the first direction X and the second direction Y is parallel to the plane where the substrate is located, and the third direction Z mentioned below is perpendicular to the plane formed by the first direction X and the second direction Y, that is, the third direction Z is a vertical direction, which is the thickness direction of the substrate. For the convenience of explanation, the plane formed by the first direction X and the second direction Y is defined as a horizontal plane.

[0037] See also Figure 3 and Figure 4 The driving plate 50 is provided with a guide groove 51 on one side facing the base body 11, and the base body 11 is provided with a roller 13 on one side facing the driving plate 50, and the roller 13 rolls in the guide groove 51. When the driving member 70 drives the push-pull rod 60 to move forward along the first direction X, the driving plate 50 also moves forward along the first direction X. Due to the force of the guide groove 51 on the driving plate 50 on the roller 13 of the base body 11 in the second direction Y, the base body 11 moves rightward in the second direction Y synchronously, and then the support rod 30 fixedly connected to the base body 11 moves rightward in the second direction Y synchronously, thereby realizing the movement of the support needle 40 in the second direction Y.

[0038] In the embodiment of the present invention, the bottom plate 12 extends along the second direction Y, and the bottom plate 12 includes a guide rail 121 extending along the second direction Y. The end of the base body 11 slides in the guide rail 121. Through the guide groove 51, a component force in the second direction Y is applied to the roller, so the roller moves along the track where the guide groove 51 is located. In addition, the end of the base body 11 is slidably connected to the bottom plate 12, so the base body 11 moves along the second direction Y.

[0039] The substrate support device 100 provided in the embodiment of the present invention does not need to be shut down or the sealed chamber opened, and the distribution position of the support pins 40 can be automatically adjusted by controlling the driving stroke of the driving member 70. Furthermore, the driving member 70 can be provided with a sensor signal processing device and a wireless network device to realize remote monitoring and adjustment of the distribution position of the support pins 40.

[0040] The substrate supporting device 100 can be used to support a substrate of a single display panel, and can also be used to support a motherboard to be cut into multiple display panels, which is not limited here.

[0041] The movement distance of the push-pull rod 60 along the first direction X will affect the movement distance of the base body 11 in the second direction Y, that is, it will eventually affect the position of the support pin 40 in the second direction Y. It can be understood that the guide groove 51 needs to have a component in the second direction Y so that the base body 11 can move in the second direction Y under the joint action of the guide groove 51 and the guide rail 121, that is, the component length L of the guide groove 51 in the second direction Y will affect the maximum displacement of the support pin 40 in the second direction Y.

[0042] In an embodiment of the present invention, the component length L of the guide groove 51 along the second direction Y needs to be greater than the maximum displacement of the push-pull rod 60 in the first direction X, and the maximum displacement of the push-pull rod 60 in the first direction X depends on the push-pull stroke of the push-pull rod 60 by the driving member 70.

[0043] In an embodiment of the present invention, the component length L of the guide groove 51 along the second direction Y can be 20 to 70 mm. Within this adjustment range, it can not only meet the limited installation space size, but also effectively adjust the displacement of the support needle 40 in the second direction Y, so that the support needle 40 is prevented from falling into the pixel area of ​​the display panel.

[0044] In an embodiment of the present invention, the shape of the guide groove 51 includes any one of a straight line and an arc. When the shape of the guide groove 51 is a straight line, the straight line may be parallel to the second direction Y. When the shape of the guide groove 51 is an arc, the arc may be a logarithmic curve.

[0045] In an embodiment of the present invention, the driving member 70 includes any one of a motor and a cylinder.

[0046] See also Figure 5 and Figure 6 The substrate supporting device 100 further includes a linkage mechanism 80, and the push-pull rod 60 is linked to the support rod 30 through the linkage mechanism 80. Under the action of the linkage mechanism 80, when the push-pull rod 60 moves along the first direction X, it will simultaneously drive the support rod 30 to move along the third direction Z, so that the support pins 40 on the support rod 30 are lifted up or hidden.

[0047] Specifically, in some embodiments, the linkage mechanism 80 includes a guide rod 81 and a pulley 82 passing through the guide rod 81, one end of the guide rod 81 is fixedly connected to the support rod 30; and includes two surfaces with different heights, the pulley 82 slides on the two surfaces, and synchronously drives the support rod 30 to move along the third direction Z. Figure 5 As shown, the two surfaces are a first surface 601 and a second surface 602, and the height of the first surface 601 is lower than the height of the second surface 602. The first end of the support rod 30 is fixedly connected to the base body 11 through an elastic member 90, and the elastic member 90 can be stretched and compressed along the third direction Z under the action of an external force.

[0048] Since the first end of the support rod 30 is fixedly connected to the base body 11 via the elastic member 90, the first end of the support rod 30 and the base body 11 will not be displaced in the first direction X, and the pulley 82 is restricted to move along the first direction X by the push-pull rod 60. Therefore, when the push-pull rod 60 drives the pulley 82 to move along the first direction X, the pulley 82 will lift other parts of the support rod 30 through the guide rod 81, thereby lifting the support needle 40 at the second end.

[0049] In some embodiments of the present invention, the elastic member 90 may be an opening and closing spring. When the push-pull rod 60 is not subjected to a driving force, the opening and closing spring is in a closed state. When the push-pull rod 60 is subjected to a driving force, the opening and closing spring is subjected to tension, pressing the first end of the support rod 30 downward, thereby lifting the second end of the support rod 30 upward, thereby achieving the upward lifting of the support needle 40 at the second end position.

[0050] like Figure 6 As shown, when the push-pull rod 60 is driven to move forward along the first direction X, the pulley 82 is driven to slide from the first surface 601 to the second surface 602, and the guide rod 81 is lifted synchronously, thereby synchronously driving the support rod 30 to be lifted, so that the support needle 40 on the support rod 30 is also lifted together.

[0051] In an embodiment of the present invention, the side of the push-pull rod 60 away from the base 10 includes a first groove 61 and a second groove 62, the first groove 61 and the second groove 62 are connected by a slope 603, and the pulley 82 slides in the first groove 61, the slope 603 and the second groove 62. The bottom wall of the first groove 61 is the first surface 601, and the bottom wall of the second groove 62 is the second surface 602. When the push-pull rod 60 moves forward along the first direction X, the pulley 82 climbs from the first groove 61 along the slope 603 to the second groove 62. The second surface 602 is parallel to the horizontal plane, so the height to which the support pin 40 can be lifted depends on the height difference H between the first groove 61 and the second groove 62. The height difference H between the first groove 61 and the second groove 62 can be designed according to the height actually required to be lifted.

[0052] The first groove 61 and the second groove 62 each include an arcuate sidewall, the arcuate sidewall of the first groove 61 is arranged at a side away from the second groove 62, and the arcuate sidewall of the second groove 62 is arranged at a side away from the first groove 61, and the curvature of the two arcuate sidewalls may be the same as the curvature of the pulley 82. When the support pin 40 needs to be hidden, the pulley 82 is restricted at the arcuate sidewall of the first groove 61, and when the support pin 40 needs to rise to support the substrate and move in the second direction Y, the pulley 82 is restricted at the arcuate sidewall of the second groove 62.

[0053] The lengths of the first groove 61, the slope 603, and the second groove 62 along the first direction X are all much smaller than the maximum movable displacement of the push-pull rod 60 in the first direction X. Therefore, when the push-pull rod 60 moves forward a very small distance along the first direction X, the support needle 40 is lifted. Thereafter, when the push-pull rod 60 continues to move forward along the first direction X, the pulley 82 is restricted in the second groove 62. Therefore, the maximum movable displacement of the push-pull rod 60 in the first direction X affects the displacement of the support needle 40 in the second direction Y.

[0054] The linkage design among the base body 11, the bottom plate 12, the driving plate 50, the linkage mechanism 80, and the push-pull rod 60 of the embodiment of the present invention only requires the push-pull rod 60 to move in the first direction X, so that the support needle 40 on the support rod 30 can be raised or hidden in the third direction Z, and can also be displaced in the second direction Y. The contact position between the support needle 40 and the substrate can be changed without cavity opening and equipment modification.

[0055] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0056] A substrate support device provided in an embodiment of the present invention is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical scheme and core idea of ​​the present invention. Ordinary technicians in this field should understand that they can still modify the technical schemes recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the present invention.

Claims

1. A substrate supporting device, characterized in that: include: A base, comprising a base body and bottom plates located at two opposite ends of the base body, wherein the ends of the base body are slidably connected to the bottom plates; A support rod, wherein a first end of the support rod is fixedly connected to the base body, and a second end of the support rod is fixedly connected to a support pin, and the support pin is used to support the substrate; A driving plate, disposed on the base body and linked to the base body; A push-pull rod, disposed on one side of the driving plate and fixedly connected to the driving plate; A driving member, wherein the driving member drives the push-pull rod to move along a first direction; wherein, When the push-pull rod moves along the first direction, the driving plate is simultaneously driven to move along the first direction, and the base body and the support rod move along a second direction intersecting with the first direction.

2. The substrate supporting device according to claim 1, characterized in that: A guide groove is provided on one side of the driving plate facing the base body, and a roller is provided on one side of the base body facing the driving plate, and the roller rolls in the guide groove.

3. The substrate supporting device according to claim 2, characterized in that: The component length of the guide groove along the second direction is greater than the maximum displacement of the push-pull rod in the first direction.

4. The substrate supporting device according to claim 3, characterized in that: The component length of the guide groove along the second direction is 20 to 70 mm.

5. The substrate supporting device according to claim 2, characterized in that: The guide groove may have a shape of a straight line or an arc.

6. The substrate supporting device according to claim 2, characterized in that: The substrate supporting device also includes a linkage mechanism, and the push-pull rod is linked to the support rod through the linkage mechanism; when the push-pull rod moves along the first direction, it simultaneously drives the support rod to move along a third direction, and the third direction is perpendicular to the plane formed by the first direction and the second direction.

7. The substrate supporting device according to claim 6, characterized in that: The linkage mechanism includes a guide rod and a pulley passing through the guide rod, one end of the guide rod is fixedly connected to the support rod; the side of the push-pull rod away from the base includes two surfaces with different heights, the pulley slides on the two surfaces, and synchronously drives the support rod to move along the third direction.

8. The substrate supporting device according to claim 7, characterized in that: The side of the push-pull rod facing away from the base includes a first groove and a second groove, the first groove and the second groove are connected by a slope, and the pulley slides in the first groove, the slope and the second groove.

9. The substrate supporting device according to claim 7, characterized in that: The first end of the support rod is fixedly connected to the base body through an elastic member.

10. The substrate supporting device according to claim 1, wherein: The bottom plate includes a guide rail extending along the second direction, and the end of the base body slides in the guide rail.

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