Separating device for improving consistency of color temperatures at different angles

Abstract

The utility model discloses a separating device for improving the consistency of color temperatures at different angles, which relates to the technical field of LED display screens, and comprises an epoxy colloid, a BT substrate and a plurality of groups of light-emitting wafers, the plurality of groups of light-emitting wafers are uniformly distributed and mounted on the BT substrate, and the LED display screens are arranged on the BT substrate. The epoxy colloid covers the BT substrate provided with the light-emitting wafers, the epoxy colloid is formed by connecting a plurality of semi-elliptical epoxy colloids end to end, and each group of light-emitting wafers is formed by red, green and blue light-emitting wafers as one group; according to the technical scheme provided by the utility model, the elliptical epoxy colloid is adopted to cover the BT substrate, so that the included angle between the light emitted by the light-emitting wafer and the alternating surface is uniformly changed, abrupt change points of the angle do not exist, the color temperature consistency of the light is improved, and the situation of color temperature abrupt change is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to a separation device for improving the consistency of color temperatures at different angles. Background Art

[0002] At present, chip-type separation devices are molded with a flat surface plus a rough surface structure, and the overall product after splitting is a rectangular parallelepiped structure. Under this structure, when light passes through the edges, different lights will have a sudden brightness change, resulting in changes in the color mixing of red, green and blue lights. (For example: it is found that the color temperature after light mixing is the standard 6500K, but because the red light attenuation suddenly changes at the edges, the brightness attenuation is smaller than that of blue and green. The color temperature at this angle suddenly changes to 9000+K, causing the white light at an angle greater than this to be blue.)

[0003] In conventional LED display screens, most of them are arranged in a plane, and the problem of sudden color temperature change does not affect normal use. However, in recent years, with the rise of industries such as AR and virtual photography, the market for curved LED display screens has gradually expanded, which has put forward higher requirements for the consistency of lamp beads at large angles, and the above problems are particularly obvious. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model

[0005] The technical problem to be solved by the utility model is to provide a separation device that improves the consistency of color temperature at different angles, thereby solving the problem that the existing separation device may cause color temperature changes and low color temperature consistency.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the technical solution provided by the utility model is:

[0008] A separation device for improving the consistency of color temperature at different angles comprises an epoxy colloid, a BT substrate and a plurality of groups of light-emitting chips, wherein the plurality of groups of light-emitting chips are evenly distributed and mounted on the BT substrate, the epoxy colloid covers the BT substrate on which the light-emitting chips are mounted, and the epoxy colloid is formed by connecting a plurality of semi-elliptical epoxy colloids.

[0009] Furthermore, each group of the light-emitting chips is provided with red, green and blue light-emitting chips as a group.

[0010] Furthermore, the epoxy colloid splits are independent entities, and the adjacent connected epoxy colloids are divided into separate entities together with the BT substrate under the epoxy colloids by a fixed knife thickness, and the division position is the adjacent connection position of the epoxy colloids.

[0011] Furthermore, a geometric center line of a single epoxy colloid ellipse is consistent with a center line of the light-emitting chip.

[0012] Furthermore, the length of the long semi-axis of the ellipse of the epoxy colloid is half of the sum of the width of the single product after splitting and one quarter of the thickness of the splitting knife, and the short semi-axis of the ellipse is the maximum value of the thickness of the epoxy colloid.

[0013] Furthermore, the knife thickness is the width of the material cut off from the epoxy colloid and the BT substrate, that is, the knife thickness of the split.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0016] The technical solution provided by the utility model adopts an elliptical epoxy colloid to cover the BT substrate, so that the angle between the light emitted by the light-emitting chip and the alternating surface changes evenly, there is no angle mutation point, the consistency of the color temperature of the light is improved, and the color temperature mutation is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model before splitting;

[0018] Figure 2 This is a schematic diagram of the structure after the splitting of the embodiment of the utility model;

[0019] Figure 3 This is a front view of a single product of an embodiment of the utility model;

[0020] Figure 4 It is a side view of a single product of an embodiment of the utility model;

[0021] Figure 5 It is a top view of a single product of an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0023] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0024] Example

[0025] Combined with Figure 1-5 A separation device for improving the consistency of color temperature at different angles includes an epoxy colloid 11, a BT substrate 13 and a plurality of groups of light-emitting chips 12, each group of the light-emitting chips 12 is arranged as a group by red, green and blue light-emitting chips, the red, green and blue light-emitting chips are arranged vertically, and the intervals between single light-emitting chips are the same. The plurality of groups of the light-emitting chips 12 are evenly distributed and installed on the BT substrate 13, and the plurality of groups of the light-emitting chips 12 are evenly arranged horizontally, and the intervals between each group of the light-emitting chips 12 are the same.

[0026] The epoxy colloid 11 is covered on the BT substrate 13 on which the light-emitting chip 12 is mounted. The epoxy colloid 11 is formed by connecting a plurality of semi-elliptical epoxy colloids, and the arc surface at the connection of the connected epoxy colloids 11 has a semi-circular chamfered shape transition.

[0027] Several epoxy colloids 11 connected as one need to be split into independent individuals. The adjacently connected epoxy colloids 11 are split with a fixed knife thickness. When the epoxy colloid 11 is split, it is separated into separate individuals together with the BT substrate 13 on the lower side of the epoxy colloid 11. When the epoxy colloid 11 and the BT substrate 13 are split, part of the material needs to be cut off. The width of the cut part of the material is the knife thickness of the split, and the splitting position is the connection position of the adjacent epoxy colloids 11.

[0028] The geometric center line of the single ellipse of the epoxy colloid 11 is consistent with the center line of the light emitting chip 12, so as to achieve a bilaterally symmetrical structure of the split device.

[0029] The length of the major axis of the ellipse of the epoxy colloid 11 is half of the sum of the width of a single product after splitting and one quarter of the thickness of the splitting knife, and the minor axis of the ellipse is the maximum value of the thickness of the epoxy colloid 11.

[0030] The size of the major semi-axis of the ellipse is larger than the design size of the separated device, so as to provide an offset tolerance during the splitting process and reduce the difficulty of the process.

[0031] The product after split cutting has a vertical plane structure at both ends.

[0032] In the actual production process, a mold is needed to complete the filling of the epoxy colloid. The mold of the encapsulated colloid is changed to a concave-convex structure corresponding to the pixel points of the separation device, so that each pixel point has an elliptical arc structure around it.

[0033] As the light-emitting angle of red, green and blue light changes, the angle between the light and the alternating surfaces changes evenly, and there is no sudden change in the angle.

[0034] Between the pixels, a circle with a radius equal to the thickness of the split knife is made by being tangent to the two corresponding ellipses, so as to achieve gas discharge in the mold during packaging.

[0035] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A separation device for improving the consistency of color temperature at different angles, characterized in that: It includes epoxy colloid, BT substrate and several groups of light-emitting chips, wherein the several groups of light-emitting chips are evenly distributed and installed on the BT substrate, the epoxy colloid covers the BT substrate on which the light-emitting chips are installed, and the epoxy colloid is formed by connecting a plurality of semi-elliptical epoxy colloids.

2. A separation device for improving color temperature consistency at different angles according to claim 1, characterized in that: Each group of light emitting chips is composed of red, green and blue light emitting chips.

3. The separation device for improving color temperature consistency at different angles according to claim 1, characterized in that: The epoxy colloid splits are independent entities. The adjacent connected epoxy colloids are divided into separate entities together with the BT substrate under the epoxy colloids by a fixed knife thickness, and the division position is the adjacent connection position of the epoxy colloids.

4. The separation device for improving color temperature consistency at different angles according to claim 1, characterized in that: The geometric center line of the single epoxy colloid oval is consistent with the center line of the light emitting chip.

5. The separation device for improving color temperature consistency at different angles according to claim 3, characterized in that: The length of the long semi-axis of the ellipse of the epoxy colloid is half of the sum of the width of a single product after splitting and a quarter of the thickness of the splitting knife, and the short semi-axis of the ellipse is the maximum value of the thickness of the epoxy colloid.

6. The separation device for improving color temperature consistency at different angles according to claim 5, characterized in that: The blade thickness is the width of the material cut off from the epoxy colloid and the BT substrate, that is, the blade thickness of the split.

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