A display device capable of reducing brightness difference between joint seam and display screen

Abstract

The present invention discloses a display device capable of reducing the brightness difference between a joint seam and a display screen, comprising a connector, wherein the connector is fixed in the joint seam of two adjacent display screens, and the connector covers the screen edges of the two adjacent display screens, and a plurality of light-emitting element groups are provided on the side of the connector facing away from the joint seam, and the light-emitting element groups are covered by a diffusion layer for diffusing light. The present invention fixes the connector in the joint seam, and through the light emission of the light-emitting element group, the brightness difference and color difference between the joint seam and the display screen can be reduced, the integration degree of the display device and the display screen can be improved, the black edge effect caused by the existence of the joint seam can be eliminated, the integrity of the display screen picture can be improved, and the display effect of the picture can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen manufacturing, and in particular to a display device capable of reducing the brightness difference between a joint seam and a display screen. Background Art

[0002] LED display screen is a new type of flat panel display device that appeared in the 1990s. Due to its clear picture, high brightness and bright colors, it has gradually become the main display screen in the field of public multimedia display.

[0003] With the rapid development of public multimedia, the size of display screens is getting bigger and bigger. The market requires the use of large LED screens for media playback. Large LED screens are generally made up of multiple small LED screens. This unitized design not only ensures that the size of the large LED screen can be spliced ​​and adjusted according to needs, but also makes the installation, debugging and maintenance of the system extremely simple, thereby minimizing the invisible faults of the large LED screen system and increasing the reliability of the large LED screen.

[0004] However, large LED screens also have inevitable disadvantages: since they are made up of multiple small LED screens, there will be a seam between the joints of each small LED screen. These seams reflect and absorb light differently from the screen of the display, and black edges will appear on the screen when displayed, making people feel the brightness and color difference of the seams when watching, destroying the integrity of the entire large LED screen and affecting the visual effect of the display. Summary of the invention

[0005] In order to solve the problem that the existing large-scale LED display screens have splicing seams resulting in poor visual effects, the purpose of the present invention is to provide a display device that can reduce the brightness and color differences of the display screen caused by the splicing seams of the large-scale LED display screen and improve the overall visual effect of the screen.

[0006] The technical solution adopted by the present invention is:

[0007] A display device capable of reducing the brightness difference between a joint seam and a display screen, comprising a plug-in component, wherein the plug-in component is fixed in the joint seam between two adjacent display screens, and the plug-in component covers the screen edges of the two adjacent display screens;

[0008] A plurality of light emitting element groups are arranged on a surface of the connector facing away from the joint, and the light emitting element groups are covered by a diffusion layer for diffusing light.

[0009] Optimally, the connector is a T-shaped piece;

[0010] The vertical portion of the T-shaped piece is an insertion end, which is inserted into the joint seam of two adjacent display screens. The horizontal portion of the T-shaped piece is an installation end. The light-emitting element group is arranged on a side of the horizontal portion facing away from the vertical portion. The two side edges of a side where the horizontal portion is connected to the vertical portion are respectively overlapped on the screen edges of the corresponding side display screens.

[0011] Preferably, a through hole is provided on a side of the horizontal portion facing away from the vertical portion, and the through hole passes through the horizontal portion vertically.

[0012] Optimally, a T-shaped piece is provided in one of the splicing seams, and the length of the horizontal portion is the same as the length of the splicing seam.

[0013] Optimally, the light emitting element groups are arranged in 5 rows, each row is provided with a light emitting element group, and each light emitting element group includes 5 dot matrix display matrices arranged at equal intervals.

[0014] Optimally, the dot matrix display matrix is ​​a 980×540 matrix and is composed of light emitting diodes.

[0015] Optimally, the diffusion layer completely covers a side of the horizontal portion facing away from the vertical portion.

[0016] Optimally, the diffusion layer is a shadowless adhesive doped with diffuser powder.

[0017] Optimally, the diffusion layer has a thickness between 1.8 and 2.3 mm.

[0018] The beneficial effects of the present invention are:

[0019] (1) The present invention is a display device that can reduce the brightness difference between a joint seam and a display screen. The display device includes a connector, wherein a light-emitting element group covered by a diffusion layer is provided on the connector, and the connector is fixed in the joint seam of two adjacent display screens and covers the screen edges of the two display screens.

[0020] Through the above design, firstly, a connector is installed in the joint between the two display screens, and the screen edges of the two display screens are covered by the connector, that is, the screens on both sides of the joint are covered by the connector to eliminate the physical gap between the two display screens. At the same time, the light-emitting element group on the connector is used for light display, and the diffusion layer is used to diffuse the light, so that the display device in the joint can realize light display. In this way, the brightness difference and color difference between the joint and the display screen can be reduced, the fusion degree of the display device and the display screen can be improved, the black edge effect caused by the existence of the joint is eliminated, the integrity of the display screen is improved, and the display effect of the picture is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the plug connector provided by the present invention.

[0023] Figure 2 It is a top view of the connector provided by the present invention.

[0024] Figure 3 It is a structural schematic diagram of a large LED display screen provided by the present invention without installing connectors.

[0025] Figure 4 It is a structural schematic diagram of a large LED display screen provided by the present invention which is installed with only two connectors.

[0026] Figure 5 It is a structural schematic diagram of a large-scale LED display screen provided by the present invention with all connectors installed.

[0027] Figure 6 is Figure 5 A schematic diagram of the structure of the seam is shown in FIG.

[0028] In the above drawings, 1-connector; 101-vertical part; 102-horizontal part; 102a-through hole; 2-display screen; 3-light emitting element group; 301-dot matrix display matrix; 4-diffusion layer. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific embodiments. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0030] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there may be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0031] The terms used herein are used only to describe specific embodiments and are not intended to limit the exemplary embodiments of the present invention / invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "include", "comprise", "include", and / or "comprising" when used herein specify the existence of the claimed features, integers, steps, operations, units, and / or components, and do not exclude the existence or addition of one or more other features, quantities, steps, operations, units, components, and / or their combinations.

[0032] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0033] In addition, the specific features, structures, functions or characteristics can be combined in any suitable manner into one or more embodiments. For example, the first embodiment can be combined with the second embodiment as long as the specific features, structures, functions or characteristics associated with the two embodiments are not mutually exclusive.

[0034] Embodiment 1

[0035] like Figures 1 to 6 As shown, the display device provided in this embodiment can reduce the brightness difference between the joint seam and the display screen, including a connector 1, wherein the connector 1 is fixed in the joint seam of two adjacent display screens 2, and the connector 1 covers the screen edges of the two adjacent display screens 2.

[0036] A plurality of light emitting element groups 3 are arranged on a surface of the connector 1 facing away from the joint, and the light emitting element groups 3 are covered by a diffusion layer 4 for diffusing light.

[0037] like Figure 1 As shown, the specific structure of the display device capable of reducing the brightness difference between the splicing seam and the display screen is described below:

[0038] The connector 1 is used to be installed in the joint between two adjacent display screens 2 so as to achieve the effect of eliminating the brightness and color difference between the joint and the display screens 2 .

[0039] In this embodiment, the connector 1 is fixed in the joint and covers the screen edges of two adjacent display screens 2 at the same time. The reason for this arrangement is that the connector 1 is used to cover the screens on both sides of the joint, thereby completely covering the physical gap of the joint.

[0040] The light emitting element group 3 is used as a light emitting device, which is electrically connected to the LED driving board inside the display screen 2 to achieve the function of lighting. At the same time, the light emitting element group 3 is covered with a diffusion layer 4, which can diffuse the light emitted by the light emitting element group 3 so that the emitted light is integrated with the display screen 2, reducing the color and brightness difference between the display screen 2 and the joint seam, and improving the integrity of the entire large LED display screen.

[0041] Through the above design, the present invention first uses the connector 1 to cover the physical gap of the joint, then emits light through the light-emitting element group 3, and uses the diffusion layer 4 to diffuse the light, so that the surface of the connector 1 can realize luminous display, thereby reducing the brightness difference and color difference between the connector 1 and the display screen 2, maximizing the integration of the connector 1 and the display screen 2, eliminating the black edge phenomenon caused by the existence of the joint, improving the integrity of the large LED display screen, and thus improving the display effect of the entire screen.

[0042] In this embodiment, the connector 1 can be fixed in the joint seam by screws. Of course, other fixing methods such as welding, bonding, etc. can also be used.

[0043] In this embodiment, there may be multiple connectors 1 in a joint, that is, multiple connectors 1 are connected to fill the joint, and then the brightness and color difference with the display screen 2 is reduced through the luminous display; at the same time, only one connector 1 may be set in a joint. When only one connector 1 is used, this connector 1 must fill the entire joint and completely cover the screen edges on both sides of the joint. In this way, when the luminous display is performed, the integration of the connector 1 and the display screen 2 can be maximized to achieve the best display effect.

[0044] Of course, in this embodiment, in order to maximize the integration of the luminous display of the connector 1 and the image on the display screen 2, the display of the light-emitting element group 3 can be adjusted through existing equipment and software, such as refresh rate, image mixing effect, image point-to-point display, and color restoration and other parameters, so that the connector 1 can be integrated with the display screen 2 to the greatest extent and the influence of the splicing seam on the image display effect can be reduced as much as possible.

[0045] Embodiment 2

[0046] This embodiment is a specific implementation of the display device capable of reducing the brightness difference between the joint seam and the display screen described in the first embodiment.

[0047] like Figures 1 to 6As shown, the display device provided in this embodiment can reduce the brightness difference between the joint seam and the display screen, including a connector 1, wherein the connector 1 is fixed in the joint seam of two adjacent display screens 2, and the connector 1 covers the screen edges of the two adjacent display screens 2.

[0048] A plurality of light emitting element groups 3 are arranged on a surface of the connector 1 facing away from the joint, and the light emitting element groups 3 are covered by a diffusion layer 4 for diffusing light.

[0049] In this embodiment, the connector 1, the display screen 2, the light emitting element group 3 and the diffusion layer 4, the structures, functions and technical effects achieved by the above elements are the same as those in the first embodiment, and will not be elaborated here.

[0050] Optimally, the connector 1 is a T-shaped piece.

[0051] The vertical portion 101 of the T-shaped piece is an insertion end, which is inserted into the joint seam of two adjacent display screens 2. The horizontal portion 102 of the T-shaped piece is an installation end. The light-emitting element group 3 is arranged on the side of the horizontal portion 102 facing away from the vertical portion 101. The two side edges of the side where the horizontal portion 102 is connected to the vertical portion 101 are respectively overlapped on the screen edge of the corresponding side display screen 2.

[0052] like Figure 1 As shown, the specific structure of the connector 1 is described below:

[0053] In this embodiment, the connector 1 is a T-shaped piece, which can be better installed in the splicing seam, that is, the vertical portion 101 serves as an insertion end, which is inserted into the splicing seam, and the horizontal portion 102 serves as a mounting end and also as a display end. The width of the horizontal portion 102 is greater than the width of the splicing seam, that is, after the vertical portion 101 is inserted into the splicing seam, the two side edges of the side where the horizontal portion 102 is connected to the vertical portion 101 overlap on the screen on the corresponding side of the splicing seam. Through the above design, the physical gap of the splicing seam can be completely covered.

[0054] At the same time, the light-emitting element group 3 is installed on the side of the horizontal part 102 facing away from the vertical part 101, that is, the horizontal part 102 serves as the display end. After the connector 1 is installed in the joint, it performs light display, so that the light-emitting display of the connector 1 can be realized. In addition, with the light diffusion effect of the diffusion layer 4, when the entire display screen 2 displays images, the brightness difference and color difference between the connector 1 and the display screen 2 can be reduced, so that the connector 1 can be better integrated with the display screen 2, avoiding the black edge phenomenon caused by the existence of the joint, improving the integrity of the entire large LED display screen, and then improving the display effect of the picture, so that users cannot feel the brightness difference and color difference, thereby truly visually removing the black edge phenomenon of the large LED display screen.

[0055] In this embodiment, the T-shaped piece is made of steel.

[0056] In this embodiment, the T-shaped piece is also installed by screws, that is, the vertical portion 101 is directly fixed in the joint seam with screws to achieve seamless joint between two adjacent display screens 2. This installation method saves time and effort. After installation, the horizontal portion 102 of the T-shaped piece can cover the joint seam without processing and adjustment, thereby simplifying the installation steps.

[0057] Optimally, one T-shaped piece is provided in a joint seam, and the length of the horizontal portion 102 is consistent with the length of the joint seam.

[0058] The above scheme is optimized in that only one T-shaped piece is arranged in a joint seam, thus avoiding the disadvantage of using multiple T-shaped pieces and splicing them. At the same time, a horizontal portion 102 with the same length as the joint seam is used to ensure that the emitted light and the displayed image are better integrated with the display screen 2, thereby achieving a better display effect.

[0059] like Figure 1 As shown, the length direction of the horizontal portion 102 is Figure 1 The horizontal direction in the width direction is Figure 1 The vertical direction in .

[0060] like Figure 3 As shown, Figure 3 That is the structural diagram of a large LED display screen. It can be clearly seen that there are seams between each display screen 2 in the existing large LED display screen. When displaying, these seams will form black edges, which will cause brightness and color differences with the image on the display screen 2, affecting the display effect.

[0061] like Figure 4 As shown, Figure 4 Two connectors 1 are provided in the large LED display screen. Figure 4 It can be seen from the figure that the horizontal portion 102 of the connector 1 overlaps the edges of the screen on both sides of the joint, that is, when viewed from above, the connector 1 completely covers the joint.

[0062] like Figure 5 As shown, Figure 5 Connectors 1 are all set in the joints of the large LED display screen, that is, all the joints are completely covered by the connectors 1. When the light-emitting element group 3 emits light, the horizontal part 102 of the connector 1 can be illuminated by the light diffusion effect of the diffusion layer 4, which greatly reduces the color and brightness difference with the display screen 2, improves the integration of the horizontal part 102 and the display screen 2, and thus achieves the effect of visually removing the black edge phenomenon and improving the display effect of the picture.

[0063] Figure 6 That is, it shows Figure 5 The seams in the Figure 6 It can be seen that the horizontal portion 102 of the connector 1 completely covers the joint seam, eliminating the physical spacing, and when equipped with a luminous display, the effect of reducing the color and brightness difference with the display screen 2 can be achieved.

[0064] Preferably, a through hole 102 a is provided on a surface of the horizontal portion 102 facing away from the vertical portion 101 , and the through hole 102 a passes through the horizontal portion 102 from top to bottom.

[0065] like Figure 1 As shown, by setting the through hole 102a, the light emitting element group 3 can be easily wired, that is, the wires can be conveniently set to electrically connect the light emitting element group 3 to the LED driving board in the display screen 2 to realize lighting of the light emitting element group 3.

[0066] Optimally, the light emitting element groups 3 are arranged in 5 rows, each row is provided with a light emitting element group 3, and each light emitting element group 3 includes 5 dot matrix display matrices 301 arranged at equal intervals.

[0067] Optimally, the dot matrix display matrix 301 is a 980×540 matrix and is composed of light emitting diodes.

[0068] like Figure 2 As shown, through the above design, 25 dot matrix display matrices 301 are arranged on the horizontal part 102, and each dot matrix display matrix 301 is composed of 980×540 light-emitting diodes. The reason for this arrangement is: since the intersection of each row and column of the matrix is ​​a pixel point of the displayed image, different pictures can be displayed by controlling the light-emitting diodes in each row and column to light up at different times. By setting the number of light-emitting diodes in the dot matrix display matrix 301, the clarity and image quality of the display image of the display device can be improved, and then it can be integrated with the display screen 2 to the greatest extent, so that the whole large and small LED display screens have better integrity and achieve better display effects.

[0069] Optimally, the diffusion layer 4 completely covers the side of the horizontal portion 102 facing away from the vertical portion 101. The above design can improve the light diffusion effect of the diffusion layer 4, and can also diffuse the light emitted by the light emitting element group 3 in all directions, eliminating the color and brightness differences with the display screen 2 as much as possible.

[0070] Optimally, the diffusion layer 4 is a shadowless adhesive doped with diffuser powder.

[0071] Optimally, the diffusion layer 4 has a thickness between 1.8 and 2.3 mm.

[0072] Shadowless glue is a curing glue. After the shadowless glue is applied to the surface of the light emitting element group 3, on the one hand, the light emitting element group 3 can be firmly attached to the horizontal part 102. On the other hand, after curing, the shadowless glue is completely transparent and will not turn yellow or white for a long time, and will not affect the penetration of light.

[0073] At the same time, the shadowless adhesive is doped with diffuser powder, whose light diffusion rate can reach more than 95%, and the light transmittance is between 85% and 93%, which can effectively increase the diffusion rate and light transmittance. Through the above design, the diffuser powder can be used to increase the diffusion rate of light, eliminate the gap with the display screen 2, reduce the brightness difference between the horizontal part 102 and the display screen 2, realize the fusion of the horizontal part 102 and the display screen 2, and eliminate the black edge phenomenon of the splicing seam.

[0074] In this embodiment, the thickness of the diffusion layer 4 is 2 mm.

[0075] In summary, the display device provided by the present invention that can reduce the brightness difference between the splicing seam and the display screen has the following technical effects:

[0076] (1) The present invention first installs a connector 1 in the joint between two display screens 2, and uses the connector 1 to cover the screen edges of the two display screens 2, that is, uses the connector 1 to cover the screens on both sides of the joint, thereby eliminating the physical gap between the two display screens 2. At the same time, the light-emitting element group 3 on the connector 1 is used to perform light display, and the diffusion layer 4 is used to diffuse the light, so that the display device in the joint can achieve light display. In this way, the brightness difference and color difference between the joint and the display screen 2 can be reduced, the integration of the display device and the display screen 2 can be improved, the black edge phenomenon caused by the existence of the joint is eliminated, the integrity of the display screen image is improved, and the display effect of the image is improved.

[0077] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A display device capable of reducing the brightness difference between a joint seam and a display screen, characterized in that: It comprises a plug-in connector (1), wherein the plug-in connector (1) is fixed in a joint between two adjacent display screens (2), and the plug-in connector (1) covers the screen edges of the two adjacent display screens (2); A plurality of light-emitting element groups (3) are provided on a surface of the connector (1) facing away from the joint, and the light-emitting element groups (3) are covered by a diffusion layer (4) for diffusing light; The plug connector (1) is a T-shaped piece; The vertical portion (101) of the T-shaped piece is an insertion end, inserted into the joint seam of two adjacent display screens (2), the horizontal portion (102) of the T-shaped piece is a mounting end, the light-emitting element group (3) is arranged on the side of the horizontal portion (102) facing away from the vertical portion (101), and the two side edges of the side where the horizontal portion (102) and the vertical portion (101) meet are respectively overlapped on the screen edges of the corresponding side display screens (2); A through hole (102a) is provided on a surface of the horizontal portion (102) facing away from the vertical portion (101), and the through hole (102a) passes through the horizontal portion (102) from top to bottom; A T-shaped piece is arranged in one of the splicing seams, and the length of the horizontal portion (102) is the same as the length of the splicing seam.

2. A display device capable of reducing the brightness difference between a splicing seam and a display screen according to claim 1, characterized in that: The light emitting element groups (3) are arranged in five rows, each row is provided with one light emitting element group (3), and each light emitting element group (3) comprises five dot matrix display matrices (301) arranged at equal intervals.

3. A display device capable of reducing the brightness difference between a joint seam and a display screen according to claim 2, characterized in that: The dot matrix display matrix (301) is a 980×540 matrix and is composed of light emitting diodes.

4. A display device capable of reducing the brightness difference between a joint seam and a display screen according to claim 1, characterized in that: The diffusion layer (4) completely covers a side of the horizontal portion (102) facing away from the vertical portion (101).

5. A display device capable of reducing the brightness difference between a joint seam and a display screen according to claim 4, characterized in that: The diffusion layer (4) is a shadowless adhesive doped with light-scattering powder.

6. A display device capable of reducing the brightness difference between a joint seam and a display screen according to claim 5, characterized in that: The thickness of the diffusion layer (4) is between 1.8 and 2.3 mm.

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