Display device

Abstract

The display device provided by the embodiment of the utility model comprises a display panel which is formed by splicing at least two sub display screens; the sub-display screen is provided with a light-emitting side and a non-light-emitting side which are deviated from each other, the sub-display screen comprises a glass substrate, and a plurality of light-emitting units are arranged on the light-emitting side of the glass substrate and used for displaying images; the at least two protection plates are arranged corresponding to the glass substrates, and the protection plates are fixed to the non-light-emitting sides of the glass substrates through first glue; and the orthographic projection of the glass substrate on the corresponding protection plate is completely located in the range of the protection plate. According to the utility model, the protective plate is arranged, so that the glass substrates in the sub-display screens can be prevented from being broken in the transportation process and the actual splicing process, the rejection rate of the sub-display screens is reduced, and meanwhile, the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of display, in particular to a display device. Background Art

[0002] With the development of display panels, people have higher and higher requirements for the size of display panels; however, due to the limitations of production processes, when the size of display panels cannot be made larger, multiple small and medium-sized Micro LED or MiniLED displays are currently spliced ​​together to form a large-size display panel, thereby achieving a large-scene display effect, which can bring an immersive visual experience to users. The spliced ​​large-size display panels can be used in advertising, publicity, exhibitions and other occasions.

[0003] However, the glass substrates in Micro LED or Mini LED displays are easily broken during transportation and the actual splicing process, resulting in a high scrap rate for the displays and accompanied by high production costs. Utility Model Content

[0004] The display device provided by the embodiment of the utility model includes:

[0005] A display panel, wherein the display panel is composed of at least two sub-display screens; the sub-display screen has a light-emitting side and a non-light-emitting side that are opposite to each other, and the sub-display screen comprises a glass substrate, and the glass substrate is provided with a plurality of light-emitting units on the light-emitting side for displaying an image;

[0006] At least two protection plates, each of which is disposed corresponding to each of the glass substrates, and each of which is fixed to the non-light-emitting side of the glass substrate by a first colloid;

[0007] The orthographic projection of the glass substrate on the corresponding protection plate is completely located within the range of the protection plate.

[0008] In some embodiments of the present invention, the edge of the protection plate exceeds the corresponding edge of the glass substrate.

[0009] In some embodiments of the utility model, the plurality of light-emitting units are uniformly arranged in sequence along a first direction and a second direction; the spacing between adjacent light-emitting units along the first direction is a first spacing, and the spacing between adjacent light-emitting units along the second direction is a second spacing; the first direction and the second direction are arranged crosswise;

[0010] The glass substrate has a first edge parallel to the first direction and a second edge parallel to the second direction;

[0011] The protection plate has a third edge parallel to the first direction and a fourth edge parallel to the second direction;

[0012] The distance between the first edge and the third edge along the second direction is not greater than 10% of the second spacing;

[0013] A distance between the second edge and the fourth edge along the first direction is no greater than 10% of the first interval.

[0014] In some embodiments of the present invention, the distance between the light emitting unit close to the first edge and the first edge along the second direction is not greater than 50% of the second spacing;

[0015] A distance between the light emitting unit close to the second edge and the second edge along the first direction is not greater than 50% of the first interval.

[0016] In some embodiments of the utility model, the display panel further includes: a circuit board, the circuit board is arranged on the non-light-emitting side of the glass substrate, the circuit board is electrically connected to the glass substrate through a wire, and provides the generated driving signal to the light-emitting unit;

[0017] The protection plate has at least one avoidance hole, the avoidance hole is arranged corresponding to the circuit board, and the avoidance hole is used to expose the circuit board.

[0018] In some embodiments of the present invention, the circuit board is fixed to the non-light-emitting side of the glass substrate through a second colloid, and the second colloid covers the area where the wire is located.

[0019] In some embodiments of the present invention, the first colloid is evenly coated on a side of the protection plate close to the glass substrate;

[0020] An orthographic projection of the first colloid on the glass substrate and an orthographic projection of the second colloid on the glass substrate have an overlapping area.

[0021] In some embodiments of the present invention, the thickness of the first colloid is greater than the thickness of the second colloid.

[0022] In some embodiments of the present invention, the first colloid and the second colloid are of different types.

[0023] In some embodiments of the present invention, the protection plate is made of metal.

[0024] The display device provided by the embodiment of the utility model includes: a display panel, the display panel is composed of at least two sub-display screens spliced ​​together; the sub-display screen has a light-emitting side and a non-light-emitting side that are opposite to each other, the sub-display screen includes a glass substrate, and the glass substrate is provided with a plurality of light-emitting units on the light-emitting side for displaying images; at least two protective plates, each protective plate is provided corresponding to each glass substrate, and the protective plate is fixed to the non-light-emitting side of the glass substrate by a first colloid; the orthographic projection of the glass substrate on the corresponding protective plate is completely within the range of the protective plate. By providing a protective plate, the utility model can prevent the glass substrate in the sub-display screen from being broken during transportation and the actual splicing process, reduce the scrap rate of the sub-display screen, and reduce the production cost at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of a display device in the related art.

[0026] Figure 2 This is one of the structural schematic diagrams of the display device provided in the embodiment of the utility model.

[0027] Figure 3 The second structural schematic diagram of the display device provided in the embodiment of the utility model.

[0028] Figure 4 The third structural schematic diagram of the display device provided in the embodiment of the utility model.

[0029] Figure 5 This is a fourth structural schematic diagram of the display device provided in an embodiment of the utility model.

[0030] Figure 6 This is a fifth structural schematic diagram of a display device provided in an embodiment of the utility model.

[0031] Figure 7 This is a sixth structural schematic diagram of the display device provided in an embodiment of the utility model.

[0032] Figure 8 An exploded view of a display device provided in an embodiment of the utility model.

[0033] Fig. 9 This is one of the side cross-sectional views of the display device provided in the embodiment of the utility model.

[0034] Fig.10 This is a second side cross-sectional view of the display device provided in the embodiment of the utility model. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. And in the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Unless otherwise defined, the technical terms or scientific terms used in this utility model shall have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The words "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0037] It should be noted that the sizes and shapes of the figures in the accompanying drawings do not reflect the actual proportions, and are only intended to illustrate the contents of the utility model. The same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0038] Light-emitting diode display technology refers to display technology that uses LEDs directly as light-emitting units. As the requirements for the resolution and display effects of display devices become higher and higher, Mini LED chips or Micro LED chips can be used as light-emitting units in LED display devices. Mini LED chips or Micro LED chips are miniaturized LED chips, and their size can reach the micron level. For example, the size of a Mini LED chip is less than 500μm, and the size of a Micro LED chip is less than 100μm. When the size of an LED chip is reduced to the pixel level, a Mini LED chip or Micro LED chip can be directly used as a light-emitting unit for image display.

[0039] Because Mini LED and Micro LED have the characteristics of low power consumption, long life, high stability, and self-luminescence without the need for a backlight, they have the advantages of energy saving and high integration. They can be applied to almost all mainstream display fields and are considered to be the ideal form of future display technology.

[0040] The present utility model provides a display device. Figure 1 It is a schematic diagram of the structure of a display device in the related art. Figure 2This is one of the structural schematic diagrams of the display device provided in the embodiment of the utility model.

[0041] The display device provided by the embodiment of the utility model includes a display panel, such as Figure 1 and Figure 2 As shown, the display panel is composed of at least two sub-display screens 10 spliced ​​together; that is, a large-size display panel is formed by at least two sub-display screens 10, thereby realizing the user's pursuit of a large-size display panel and achieving a large-scene display effect, which can bring an immersive visual experience to the user. The spliced ​​large-size display panel can be used in advertising display, publicity, exhibitions and other occasions.

[0042] The sub-display screen 10 has a light-emitting side and a non-light-emitting side that are opposite to each other. The sub-display screen 10 includes a glass substrate 100. The glass substrate 100 is provided with a plurality of light-emitting units 101 on the light-emitting side for displaying images; that is, through the mutual cooperation of the plurality of light-emitting units, various information such as text, graphics, animation, market conditions, video, and video signal lights can be displayed.

[0043] Exemplarily, the light emitting unit 101 may include a red light unit, a green light unit and a blue light unit, wherein the red light unit is used to emit red light, the green light unit is used to emit green light, and the blue light unit is used to emit blue light, thereby achieving full-color display. Alternatively, the light emitting unit 101 may include a red light unit, a green light unit, a blue light unit and a white light emitting unit, thereby achieving full-color display.

[0044] Exemplarily, the light-emitting unit 101 may be a light-emitting chip, such as an LED chip, a Mini LED chip, or a Micro LED chip. As the resolution of display devices continues to increase, the size of Mini LED chips and Micro LED chips continues to decrease, and the number of Mini LED chips and Micro LED chips continues to increase, it is necessary to manufacture the glass substrate and the Mini LED chips and Micro LED chips separately, and then use mass transfer technology to transfer the Mini LED chips and Micro LED chips to the glass substrate for assembly.

[0045] Combination Figure 1 As shown, when the sub-display screens 10 are spliced, it is equivalent to splicing the glass substrate 100 provided with the light-emitting unit 101. Due to the material characteristics of the glass substrate 100 itself, it is easy to break during the actual splicing process or transportation, resulting in a high scrap rate of the sub-display screens, and at the same time, it will be accompanied by the problem of high production costs.

[0046] Based on the above problems, Figure 2As shown, the display device provided by the embodiment of the utility model also includes: at least two protection plates 200, each protection plate 200 is arranged corresponding to each glass substrate 100, and the protection plate 200 is fixed to the non-light-emitting side of the glass substrate 100 by a first colloid; that is, by arranging the protection plate on the non-light-emitting side of the glass substrate, the rigidity of the glass substrate can be increased, thereby preventing the glass substrate 100 from being broken during transportation or actual splicing, thereby reducing the scrap rate and production cost.

[0047] The orthographic projection of the glass substrate 100 on the corresponding protection plate 200 is completely within the range of the protection plate 200. Figure 2 As shown, it can be seen that the area of ​​the protection plate 200 is larger than the area of ​​the glass substrate 100. This configuration is to completely protect the glass substrate, thereby further preventing the glass substrate from being broken during transportation or actual splicing, thereby reducing the scrap rate and production costs.

[0048] Figure 3 The second structural schematic diagram of the display device provided in the embodiment of the utility model.

[0049] In the embodiment of the present invention, the edge of the protection plate 200 exceeds the edge of the corresponding glass substrate 100. Figure 3 As shown, such a configuration is to further protect the glass substrate 100, thereby further preventing the edge of the glass substrate from being squeezed during the actual splicing and assembly process, and further reducing the probability of the glass substrate being broken or damaged.

[0050] The utility model provides a protection plate, which is provided corresponding to the glass substrate, and is fixed to the non-light-emitting side of the glass substrate by a first colloid; the orthographic projection of the glass substrate on the corresponding protection plate is completely located within the range of the protection plate, thereby preventing the glass substrate in the sub-display screen from being broken during transportation and the actual splicing process, reducing the scrap rate of the sub-display screen and reducing the production cost at the same time.

[0051] Figure 4 The third structural schematic diagram of the display device provided in the embodiment of the utility model. Figure 5 This is a fourth structural schematic diagram of the display device provided in an embodiment of the utility model.

[0052] In the embodiment of the present utility model, Figure 4 and Figure 5 As shown, a plurality of light emitting units 101 are uniformly arranged in sequence along a first direction F1 and a second direction F2; Figure 5 As shown, the spacing between the light emitting units 101 adjacent to each other along the first direction F1 is a first spacing d1, and the spacing between the light emitting units 101 adjacent to each other along the second direction F2 is a second spacing d2; the first direction F1 and the second direction F2 are arranged crosswise.

[0053] like Figure 5 As shown, the glass substrate 100 has a first edge B1 parallel to the first direction F1 and a second edge B2 parallel to the second direction F2; the protection plate 200 has a third edge B3 parallel to the first direction F1 and a fourth edge B4 parallel to the second direction F2; wherein, the distance between the first edge B1 and the third edge B3 along the second direction F2 is not greater than 10% of the second spacing d2; this arrangement is to prevent the splicing gap from being too large, to avoid the appearance of black stripes parallel to the first direction, and to affect the display effect.

[0054] Furthermore, the distance between the second edge B2 and the fourth edge B4 along the first direction F1 is not greater than 10% of the first spacing d1; this is set to prevent the splicing gap from being too large and avoid the appearance of black stripes parallel to the second direction, which affects the display effect.

[0055] In the embodiment of the present utility model, Figure 5 As shown, the distance between the light-emitting unit 101 close to the first edge B1 and the first edge B1 along the second direction F2 is not greater than 50% of the second spacing d2; this setting is to further avoid that the distance between the light-emitting units in two adjacent sub-display screens is too large after splicing, further avoid that the splicing gap is too large, and further avoid the appearance of black stripes parallel to the first direction, thereby improving the display effect.

[0056] Furthermore, the distance between the light emitting unit 101 near the second edge B2 and the second edge along the first direction F1 is not greater than 50% of the first spacing d1. This arrangement is to further avoid that the distance between the light emitting units in two adjacent sub-display screens is too large after splicing, further avoid that the splicing gap is too large, and further avoid the appearance of black stripes parallel to the second direction, thereby improving the display effect.

[0057] Figure 6 This is a fifth structural schematic diagram of a display device provided in an embodiment of the utility model.

[0058] In the embodiment of the present utility model, Figure 5 As shown, the display panel also includes: a circuit board 102, which is arranged on the non-light-emitting side of the glass substrate 100. The circuit board 102 is electrically connected to the glass substrate 100 through a wire S1 to provide the generated driving signal to the light-emitting unit; in this way, the light-emitting unit can emit light only after receiving the driving signal.

[0059] The wire S1 is located in the bonding area BD, and the bonding area BD is generally provided with a plurality of terminals or pads, such as a flexible printed circuit (FPC) bonding terminal for electrically connecting the display panel to the FPC, a silver paste area, an alignment mark, etc. Of course, in practical applications, the specific implementation of the bonding area can be basically the same as that in the prior art, and is not limited here.

[0060] Figure 7 This is a sixth structural schematic diagram of the display device provided in an embodiment of the utility model.

[0061] In the embodiment of the present utility model, Figure 7 As shown, the protection plate 200 has at least one avoidance hole 201, which is arranged corresponding to the circuit board 102, and is used to expose the circuit board 102. This arrangement is to prevent the protection plate from squeezing the circuit board that is already electrically connected to the glass substrate when the glass substrate and the protection plate are assembled, thereby avoiding damage to the circuit board and improving the cost rate.

[0062] In the embodiment of the utility model, the circuit board 201 is fixed to the non-light-emitting side of the glass substrate 100 by the second colloid, and the second colloid covers the area where the wire S1 is located, that is, the second colloid covers the bonding area BD. The second colloid is provided to prevent the circuit board from falling off the glass substrate, thereby preventing the circuit board from being damaged or part of the sub-display screen from not working properly.

[0063] Figure 8 An exploded view of a display device provided in an embodiment of the utility model. Fig. 9 This is one of the side cross-sectional views of the display device provided in the embodiment of the utility model.

[0064] In the embodiment of the present utility model, Figure 8 and Fig. 9 As shown, the first colloid J1 is evenly coated on the side of the protective plate 200 close to the glass substrate 100; the orthographic projection of the first colloid J1 on the glass substrate 100 overlaps with the orthographic projection of the second colloid on the glass substrate 100. This arrangement is to fully bond the protective plate to the glass substrate, to ensure that the glass substrate will not easily fall off the protective plate, thereby preventing the protective plate from failing to fully protect the glass substrate.

[0065] In the embodiment of the utility model, the thickness of the first colloid is greater than the thickness of the second colloid. This is set to ensure that the protective plate and the glass substrate always remain parallel when the glass substrate and the protective plate are assembled and bonded, so as to ensure the flatness of the glass substrate and avoid the glass substrate from tilting with the horizontal plane, thereby avoiding affecting the display effect.

[0066] In the embodiment of the utility model, the first colloid and the second colloid are of different types. The first colloid can be a heat dissipating glue, which can improve the heat dissipation efficiency of the display panel, avoid abnormal display caused by overheating of the display panel, and further improve the display effect.

[0067] For example, the first colloid can be a new black thermal management tape with excellent optical performance. TMT60735. This product adopts a substrate-free design, has good thermal conductivity and bonding properties, and has excellent surface wettability on the board, which can significantly improve the thermal conduction efficiency of the display panel. And in terms of optics, TMT 60735 innovatively uses black design to reduce light reflection, thus avoiding edge shadows when the display panel is turned off. At the same time, due to its high viscosity, TMT 60735 can ensure reliable bonding between display panels, provide low height deviation, prevent any bulges on the display panel surface, and avoid the "orange peel problem". Alternatively, the first colloid can have high thermal conductivity The TMT6074x ultra-thin thermal conductive tape series helps display panels improve heat dissipation efficiency.

[0068] Exemplarily, the second colloid may be UV glue.

[0069] In the embodiment of the utility model, the protection plate is made of metal material. Since metal has good thermal conductivity and high hardness, setting the protection plate to be made of metal material can further improve the heat dissipation efficiency of the display panel and further avoid damage to the glass substrate.

[0070] Exemplarily, the material of the protection plate can be aluminum, magnesium, stainless steel or other metals, which is not specifically limited here.

[0071] For example, the thickness of the protection plate can be set according to specific needs. Of course, while ensuring the rigidity of the glass substrate, the protection plate is made as thin as possible, which is conducive to realizing an ultra-thin display panel and meeting customer needs for ultra-thin display panels.

[0072] Fig.10 This is a second side cross-sectional view of the display device provided in the embodiment of the utility model.

[0073] Exemplarily, the sub-display screen further includes: a packaging structure 103, which is located on a side of the glass substrate 100 having the light-emitting unit 101, and the packaging structure 103 wraps the light-emitting unit 101. The packaging structure 103 is made of a transparent material that allows light to pass through.

[0074] Exemplarily, the assembly method of the display device provided by the embodiment of the utility model includes:

[0075] First, the circuit board is electrically connected to the glass substrate provided with the light-emitting unit through a wire, and the circuit board is arranged on the non-light-emitting side of the glass substrate, wherein the wire is located in the bonding area;

[0076] Secondly, a second colloid is applied in the bonding area, and the second colloid covers the wire, thereby fixing the circuit board on the glass substrate;

[0077] Then, coating the first colloid on the protection plate with the avoidance hole, and ensuring that the thickness of the first colloid is greater than the thickness of the second colloid;

[0078] Finally, the protective plate is fully bonded to the glass substrate, wherein the avoidance hole of the protective plate exposes the circuit board.

[0079] In a specific implementation, the display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, etc. Other essential components of the display device are well understood by those skilled in the art, and are not described in detail here, nor should they be used as limitations on the present invention.

[0080] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0081] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A display device, characterized in that: include: A display panel, wherein the display panel is composed of at least two sub-display screens; the sub-display screen has a light-emitting side and a non-light-emitting side that are opposite to each other, and the sub-display screen comprises a glass substrate, and the glass substrate is provided with a plurality of light-emitting units on the light-emitting side for displaying an image; At least two protection plates, each of which is disposed corresponding to each of the glass substrates, and each of which is fixed to the non-light-emitting side of the glass substrate by a first colloid; The orthographic projection of the glass substrate on the corresponding protection plate is completely located within the range of the protection plate.

2. The display device according to claim 1, wherein: The edge of the protection plate exceeds the corresponding edge of the glass substrate.

3. The display device according to claim 2, wherein: The plurality of light-emitting units are uniformly arranged in sequence along a first direction and a second direction; the spacing between adjacent light-emitting units along the first direction is a first spacing, and the spacing between adjacent light-emitting units along the second direction is a second spacing; the first direction and the second direction are arranged crosswise; The glass substrate has a first edge parallel to the first direction and a second edge parallel to the second direction; The protection plate has a third edge parallel to the first direction and a fourth edge parallel to the second direction; The distance between the first edge and the third edge along the second direction is not greater than 10% of the second spacing; A distance between the second edge and the fourth edge along the first direction is no greater than 10% of the first interval.

4. The display device according to claim 3, characterized in that The distance between the light emitting unit close to the first edge and the first edge along the second direction is not greater than 50% of the second spacing; A distance between the light emitting unit close to the second edge and the second edge along the first direction is not greater than 50% of the first interval.

5. The display device according to any one of claims 1 to 4, characterized in that: The display panel further includes: a circuit board, which is disposed on the non-light-emitting side of the glass substrate, the circuit board is electrically connected to the glass substrate through a wire, and provides a generated driving signal to the light-emitting unit; The protection plate has at least one avoidance hole, the avoidance hole is arranged corresponding to the circuit board, and the avoidance hole is used to expose the circuit board.

6. The display device according to claim 5, characterized in that The circuit board is fixed to the non-light-emitting side of the glass substrate through a second colloid, and the second colloid covers the area where the wires are located.

7. The display device according to claim 6, characterized in that The first colloid is evenly coated on a side of the protection plate close to the glass substrate; An orthographic projection of the first colloid on the glass substrate and an orthographic projection of the second colloid on the glass substrate have an overlapping area.

8. The display device according to claim 7, characterized in that: The thickness of the first colloid is greater than the thickness of the second colloid.

9. The display device according to claim 7, wherein: The first colloid and the second colloid are of different types.

10. The display device according to any one of claims 1 to 4, characterized in that: The protection plate is made of metal.

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