Light emitting element, light emitting module and display device

Abstract

This invention discloses a light-emitting element, a light-emitting module, and a display device. The supporting component of the light-emitting element includes a bottom surface, a first surface, and a second surface. Both the first and second surfaces intersect with the bottom surface, and are either intersecting or parallel. The encapsulation cavity includes a first encapsulation cavity and a second encapsulation cavity. The first surface is the first bottom surface of the first encapsulation cavity, and the second surface is the second bottom surface of the second encapsulation cavity. The light-emitting chip includes a first-color light-emitting chip and a second-color light-emitting chip. The first-color light-emitting chip is located on the side of the first bottom surface facing away from the bottom surface, and the second-color light-emitting chip is located on the side of the second bottom surface facing away from the bottom surface. A third-color phosphor fills the encapsulation cavity. The first encapsulation cavity has a first light-emitting surface, and the second encapsulation cavity has a second light-emitting surface. Both the first and second light-emitting surfaces intersect with the bottom surface, and are either intersecting or parallel. This invention allows adjacent light-emitting elements to fully mix light.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to a light-emitting element, a light-emitting module, and a display device. Background Technology

[0002] Based on customer requirements for high color gamut (Adobe and DCI-P3 100%), existing backlight modules typically use BG-LEDs (blue-green chips + red phosphors) for illumination. However, conventional dual-crystal LEDs are arranged horizontally from left to right. Due to the relatively long chip length, complete light mixing cannot be achieved within the LED. As a result, the chip emits light at a certain angle, and adjacent LEDs cannot achieve complete light mixing, leading to inconsistent colors on the left and right sides of the module. Summary of the Invention In view of this, the present invention provides a light-emitting element, a light-emitting module, and a display device, which can enable adjacent light-emitting elements to fully mix light, thereby improving the phenomenon of uneven light emission in the light-emitting module and the display device.

[0003] In a first aspect, this application provides a light-emitting element, including a support component and at least two encapsulation cavities. The support component includes a bottom surface, a first surface, and a second surface. The first surface intersects with the plane containing the bottom surface, and the second surface intersects with the plane containing the bottom surface. The plane containing the first surface and the second surface are intersecting or parallel. The encapsulation cavity includes a first encapsulation cavity and a second encapsulation cavity, the first surface being the first bottom surface of the first encapsulation cavity, and the second surface being the second bottom surface of the second encapsulation cavity; The light-emitting element includes a light-emitting chip, which includes a first color light-emitting chip and a second color light-emitting chip. The first color light-emitting chip is located on the side of the first bottom surface away from the bottom surface, and the second color light-emitting chip is located on the side of the second bottom surface away from the bottom surface. The light-emitting element includes a third-color phosphor, which is filled within the encapsulation cavity; The first encapsulation cavity has a first light-emitting surface, and the second encapsulation cavity has a second light-emitting surface. The first light-emitting surface intersects with the plane containing the bottom surface, and the second light-emitting surface intersects with the plane containing the bottom surface. The planes containing the first light-emitting surface and the second light-emitting surface are either intersecting or parallel.

[0004] Secondly, this application provides a light-emitting module, which includes the light-emitting element.

[0005] Thirdly, this application provides a display device, which includes the light-emitting module.

[0006] Compared with the prior art, the light-emitting element, light-emitting module, and display device provided by the present invention achieve at least the following beneficial effects: This application provides a light-emitting element, a light-emitting module, and a display device. The light-emitting element includes a support component and a packaging cavity. A slope or a perpendicular surface to the bottom is formed on a portion of the surface of the support component, causing the light-emitting chip placed on the surface of the support component to be tilted at a certain angle or perpendicular to the bottom surface. Light-emitting chips of different colors are packaged in at least two packaging cavities of the light-emitting element, and the tilt directions of the different colored light-emitting chips are different, so that the light-emitting element can emit light of different colors in different directions. In the light-emitting module formed by this light-emitting element, the light-emitting chips of different colors in adjacent light-emitting elements are arranged adjacently, and the light guide plate forms a groove. The light-emitting element is embedded in the groove, so that the light of adjacent light-emitting chips of different colors can be fully mixed. The fully mixed light is guided out through the light guide plate between the grooves, so that the light-emitting module can emit light uniformly and avoid visible color unevenness. The display device using this light-emitting module obtains a better display effect. Attached Figure Description

[0007] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0008] Figure 1 The diagram shown is a partial light-emitting effect of a light-emitting module formed by existing technology; Figure 2 The image shown is a schematic diagram of a light-emitting element provided in an embodiment of this application; Figure 3 The diagram shown is another schematic diagram of the light-emitting element provided in the embodiment of this application; Figure 4 The diagram shown is yet another schematic representation of the light-emitting element provided in this application embodiment; Figure 5 The image shown is provided in an embodiment of this application. Figure 3 A top view schematic diagram of the light-emitting element shown; Figure 6 The image shown is a partial schematic diagram of a light-emitting module provided in an embodiment of this application; Figure 7 The image shown is provided in an embodiment of this application. Figure 6 An enlarged view of part B in the middle; Figure 8 The image shown is another partial schematic diagram of the light-emitting module provided in an embodiment of this application; Figure 9 The diagram shown is a schematic representation of a display device provided in an embodiment of this application. Detailed Implementation

[0009] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0010] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0011] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0012] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0013] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0014] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0015] In existing technologies, BG-LEDs (blue-green chips + red phosphors) are commonly used for light emission. However, conventional dual-crystal LEDs are arranged horizontally from left to right. Due to the relatively long chip length, complete light mixing cannot be achieved within the LED. In the module, the chip emits light at a certain angle, and adjacent LEDs cannot achieve complete light mixing, resulting in inconsistent colors on the left and right sides. Specific phenomena are as follows... Figure 1 As shown, Figure 1 The image shown is a schematic diagram illustrating the partial light-emitting effect of a light-emitting module formed by existing technology. Figure 1 In BG-LED, the blue and green light chips are placed horizontally side by side. The light emitted is mixed into white light only in the middle of the LED. However, some light on the left and right sides of the LED cannot be mixed well. Visually, the LED light will appear purple on the left and green on the right. Furthermore, when the LEDs are arranged horizontally to form a light strip, the light emission angle of the LEDs is limited, and adjacent LEDs cannot mix light sufficiently, resulting in an uneven overall color effect.

[0016] In view of this, the present invention provides a light-emitting element, a light-emitting module, and a display device, which can enable adjacent light-emitting elements to fully mix light, thereby improving the phenomenon of uneven light emission in the light-emitting module and the display device.

[0017] Figure 2 The diagram shown is a schematic representation of a light-emitting element provided in an embodiment of this application. Figure 3 The diagram shown is another schematic diagram of the light-emitting element provided in the embodiment of this application. Please refer to... Figure 2 and Figure 3 This application provides a light-emitting element 100, including a support member 1 and at least two encapsulation cavities 2; The supporting component 1 includes a bottom surface 10, a first surface 11, and a second surface 12. The first surface 11 intersects with the plane containing the bottom surface 10, and the second surface 12 intersects with the plane containing the bottom surface 10. The planes containing the first surface 11 and the second surface 12 also intersect or are parallel. like Figure 2 As shown, the first surface 11 and the second surface 12 form a certain angle with the plane containing the bottom surface 10. This angle is acute, meaning that the first surface 11 and the second surface 12 are inclined at a certain angle relative to the plane containing the bottom surface 10. The directions of inclination of the first surface 11 and the second surface 12 are different, meaning that the planes containing the first surface 11 and the second surface 12 also intersect. Figure 3 As shown, the first surface 11 and the second surface 12 are perpendicular to the plane containing the bottom surface 10, and the first surface 11 and the second surface 12 are parallel.

[0018] It should be noted that when the first surface 11 and the second surface 12 are perpendicular to the plane containing the bottom surface 10, the first surface 11 and the second surface 12 may also intersect, because there are multiple surfaces perpendicular to the bottom surface 10. That is, when the first surface 11 and the second surface 12 are not completely opposite to each other, the first surface 11 may also form a certain angle with the second surface 12.

[0019] Furthermore, the encapsulation cavity 2 includes a first encapsulation cavity 21 and a second encapsulation cavity 22, wherein the first surface 11 is the first bottom surface 211 of the first encapsulation cavity 21, and the second surface 12 is the second bottom surface 221 of the second encapsulation cavity 22. The light-emitting chip 3 includes a first color light-emitting chip 31 and a second color light-emitting chip 32. The first color light-emitting chip 31 is located in the first packaging cavity 21 and on the side of the first bottom surface 211 that is away from the bottom surface 10 of the support member 1. The second color light-emitting chip 32 is located in the second packaging cavity 22 and on the side of the second bottom surface 221 that is away from the bottom surface 10 of the support member 1. Inside the encapsulation cavity 2, above the light-emitting chip 3, there is also a third color phosphor 4, so that the light emitted by the first color light-emitting chip 31 and the second color light-emitting chip 32 can respectively excite the phosphor and convert it into light of the target wavelength.

[0020] Optionally, the first surface 11 and the second surface 12 are arranged opposite to each other so that when the light-emitting elements 100 are subsequently arranged laterally, the first color light-emitting chip 31 of one of the light-emitting elements 100 and the second color light-emitting chip 32 of the other light-emitting element 100 can be well mixed.

[0021] Furthermore, the first encapsulation cavity 21 has a first light-emitting surface 212, and the second encapsulation cavity has a second light-emitting surface 222. The first light-emitting surface 212 intersects with the plane containing the bottom surface 10 of the support member 1, and the second light-emitting surface 222 intersects with the plane containing the bottom surface 10 of the support member 1. The planes containing the first light-emitting surface 212 and the second light-emitting surface 222 also intersect or are parallel. like Figure 2 As shown, the first light-emitting surface 212 and the second light-emitting surface 222 each form a certain angle with the plane containing the bottom surface 10. This angle is acute, meaning that the first light-emitting surface 212 and the second light-emitting surface 222 are inclined at a certain angle relative to the plane containing the bottom surface 10. The directions of inclination of the first light-emitting surface 212 and the second light-emitting surface 222 are different, meaning that the planes containing the first light-emitting surface 212 and the second light-emitting surface 222 also intersect. Figure 3 As shown, the first light-emitting surface 212 and the second light-emitting surface 222 are perpendicular to the plane containing the bottom surface 10, and the first light-emitting surface 212 and the second light-emitting surface 222 are parallel.

[0022] It should be noted that when the first light-emitting surface 212 and the second light-emitting surface 222 are perpendicular to the plane where the bottom surface 10 is located, the first light-emitting surface 212 and the second light-emitting surface 222 may also intersect, because there are multiple surfaces perpendicular to the bottom surface 10. That is, when the first light-emitting surface 212 and the second light-emitting surface 222 are not completely symmetrically arranged relative to the support component 1, the planes where the first light-emitting surface 212 and the second light-emitting surface 222 are located will form a certain angle.

[0023] It should also be noted that when the first surface 11 and the second surface 12 are tilted at a certain angle relative to the plane where the bottom surface 10 is located, the first light-emitting surface 212 and the second light-emitting surface 222 are also tilted at a certain angle relative to the plane where the bottom surface 10 is located; when the first surface 11 and the second surface 12 are perpendicular to the plane where the bottom surface 10 is located, the first light-emitting surface 212 and the second light-emitting surface 222 are also perpendicular to the plane where the bottom surface 10 is located.

[0024] Specifically, this application provides a light-emitting element 100, which includes a support member 1 and at least two encapsulation cavities 2. A slope or a perpendicular surface to the bottom surface 10 is formed on a portion of the surface of the support member 1, so that the light-emitting chip 3 placed on the portion of the surface of the support member 1 is tilted at a certain angle or perpendicular to the bottom surface 10. Light-emitting chips 3 of different colors are encapsulated in the at least two encapsulation cavities 2 of the light-emitting element, and the tilting directions of the light-emitting chips 3 of different colors are different, so that the light-emitting element 100 can emit light of different colors in different directions.

[0025] Optionally, the support component 1 provided in this application is injection molded from polycarbonate material. After molding, this material has high light transmittance, high impact strength, good toughness, and excellent heat resistance and dimensional stability.

[0026] Optional, such as Figure 4 As shown, Figure 4 The diagram shown is another schematic representation of the light-emitting element provided in this application embodiment. This application provides a light-emitting element 100, wherein the first color light-emitting chip 31 is a blue light-emitting chip, the second color light-emitting chip 32 is a green light-emitting chip, and the third color phosphor 4 is a red phosphor. The light-emitting element 100 provided in this application is used in light-emitting modules that emit white light. However, this application does not exclude the application of the light-emitting element 100 in other light-emitting modules that emit non-white light; that is, the first color light-emitting chip 31 and the second color light-emitting chip 32 may also emit other colors of light, and the third color phosphor may also be other colors. This application does not impose any limitations.

[0027] Optional, such as Figure 2 As shown, the angle between the first surface 11 and the plane containing the bottom surface 10 of the support member 1 is α1, and the angle between the second surface 12 and the plane containing the bottom surface 10 of the support member 1 is α2, where α1=α2. That is, the tilt angles of the first surface 11 and the second surface 12 relative to the plane containing the bottom surface 10 are the same, which facilitates the fabrication of the light-emitting element 100 and also facilitates the uniformity of the light emission of the light-emitting element 100.

[0028] It should be noted that α1=α2 can be exactly the same, but it can also have a certain error, such as α1=α2±1°, α1=α2±2°, α1=α2±3°, α1=α2±4°, α1=α2±5°, etc. As long as the tilt of the first surface 11 of the first color light-emitting chip 31 and the second surface 12 of the second color light-emitting chip 32 is about the same, and is not perceptible to the user's eyes, and is used to make the light-emitting effect of the light-emitting element 100 appear uniform to the user's eyes.

[0029] Please continue to refer to Figure 2As shown, the angle between the first light-emitting surface 212 and the plane containing the bottom surface 10 of the support component 1 is β1, and the angle between the second light-emitting surface 222 and the plane containing the bottom surface 10 of the support component 1 is β2. Optionally, β1=α1 and β2=α2, that is, the first light-emitting surface 212 and the first surface 11 have the same degree of inclination, and the second light-emitting surface 222 and the second surface 12 have the same degree of inclination, thereby ensuring that the light-emitting chip 3 emits light at the target angle and avoids the light-emitting angle from being deflected. It should be noted that β1=α1 and β2=α2 mentioned above can be exactly the same, but they can also have a certain degree of error, such as β1=α1±1°, β1=α1±2°, β1=α1±3°, β1=α1±4°, β1=α1±5°, β2=α2±1°, β2=α2±2°, β2=α2±3°, β2=α2±4°, β2=α21±5°, etc. As long as the tilt of the first surface 11 and the first light-emitting surface 212, the second surface 12 and the second light-emitting surface 222 are about the same and cannot be detected by the user's eyes, the light radiation range of the light-emitting element 100 can meet the expectations.

[0030] Optionally, based on setting α1=α2 in the light-emitting element 100, this application further proposes that β1=α1=β2=α2, which facilitates the preparation of the light-emitting element 100 and greatly ensures the uniformity of light emission of the light-emitting element 100.

[0031] Please continue to refer to Figure 2 The angle α1 formed by the first surface 11 and the plane containing the bottom surface 10 of the supporting member 1 is set to a range of 30° to 90°. Similarly, the angle α2 formed by the second surface 12 and the plane containing the bottom surface 10 of the supporting member 1 is set to a range of 30° to 90°. In other words, the tilt angle of the light-emitting chip 3 is set to 30° to 90°. Optionally, α1 can be 30°, 40°, 50°, 60°, 70°, 80°, or 90°, and α2 can be 30°, 40°, or 50°. 60°, 70°, 80°, 90°; If the tilt angle of the light-emitting chip 3 is less than 30°, the light-emitting chips 3 of different colors tend to be placed side by side horizontally. When the light-emitting chips 3 are arranged and assembled to form a light strip, the adjacent light-emitting chips 3 cannot form a good light mixing effect. Therefore, the tilt angle of the light-emitting chip 3 is set to 30°~90°. When the light-emitting chips 3 are arranged and assembled to form a light strip, the adjacent light-emitting elements 100 mix light evenly, thereby ensuring that the finished product has a good light-emitting effect.

[0032] For β1=α1 and β2=α2, the angle β1 formed by the first light-emitting surface 212 and the plane containing the bottom surface 10 of the supporting component 1 is in the range of 30°~90°, and the angle β2 formed by the second light-emitting surface 222 and the plane containing the bottom surface 10 of the supporting component 1 is in the range of 30°~90°. That is, the tilt angle of the light-emitting surface of the light-emitting chip 3 is also 30°~90°. When the light-emitting chips 3 are arranged and assembled to form a light strip, the adjacent light-emitting elements 100 mix light evenly, thereby ensuring that the finished product has a good light-emitting effect.

[0033] Please continue to refer to this. Figure 3 The support component 1 includes a partition 6, which is located between the encapsulation cavities 2 and separates the encapsulation cavities 2. Optionally, the minimum width d of the partition 6 in the direction from the first encapsulation cavity 21 to the second encapsulation cavity 22 is ≥0.35mm.

[0034] The first color light-emitting chip 31 and the second color light-emitting chip 32 in the light-emitting element 3 are encapsulated in two cavities through the separation part 6, thereby better avoiding the problem of light mixing of the two colors of light-emitting chips 3 inside the light-emitting element 100, which would cause uneven color mixing. It can also provide good support for the two colors of light-emitting chips 3, ensuring the stability of the light-emitting element 3.

[0035] It should be noted that this application does not limit the size of the light-emitting element 100, but it must ensure that commonly used chips in the industry can be used. Optional options should be considered in conjunction with... Figure 3 and Figure 5 , Figure 5 The image shown is provided in an embodiment of this application. Figure 3 The diagram shows a top view of a light-emitting element. This application provides a light-emitting element 100, wherein the length along the first direction X ranges from 3.2 to 4.2 mm, the width along the second direction Y ranges from 0.8 to 1.5 mm, and the thickness along the third direction Z is 0.4 to 0.6 mm, wherein the first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0036] It should be noted that this application describes the number of encapsulation cavities 2 as two. Without departing from the spirit or scope of the present invention, this application does not limit the number of encapsulation cavities. If the light-emitting element 100 can be prepared and produced, the number of encapsulation cavities 2 can also be three, four, etc.

[0037] Figure 6 The image shown is a partial schematic diagram of a light-emitting module provided in an embodiment of this application. Figure 7 The image shown is provided in an embodiment of this application. Figure 6 An enlarged view of part B in the middle, where Figure 7The image shows a blue light-emitting chip 31, a green light-emitting chip 32, and a red phosphor 4. Please refer to [the image / example]. Figure 6 and Figure 7 This application provides a light-emitting module 200, which includes light-emitting elements 100 provided in this application. The light-emitting module 200 includes a light strip (not shown in the figure), wherein the light-emitting elements 100 are mounted on one side of the light strip, and the first color light-emitting chip 31 of one of two adjacent light-emitting elements 100 and the second color light-emitting chip 32 of the other light-emitting element 100 are adjacent. That is, the light-emitting elements 100 are mounted on the light strip at certain intervals, and the arrangement direction of the light-emitting elements 100 is the same, so as to facilitate... Figure 7 In this process, the light emitted by the blue light-emitting chip 31 and the green light-emitting chip 32 of adjacent different light-emitting elements 100 can be fully mixed between the two. The light-emitting module 200 also includes a light guide plate 102, wherein the light guide plate 102 is located on one side of the light-emitting surface of the light-emitting element 100, that is, on one side of the first light-emitting surface 212 and the second light-emitting surface 222 of the light-emitting element 100; the light guide plate 102 has a first groove 103, and the light-emitting element 100 is embedded in the first groove 103; the light-emitting element 100 is located in the first groove 103, so that the light mixed by the first color light-emitting chip 31 and the second color light-emitting chip 32 can be conducted out through the light guide plate 102 between the two light-emitting elements 100, thereby enabling the light-emitting module to emit light evenly and avoiding visible color unevenness. The display device using this light-emitting module obtains a better display effect.

[0038] Optionally, this application also provides an alternative implementation method, please refer to... Figure 8 , Figure 8 The diagram shows another partial schematic of the light-emitting module provided in this application embodiment; the light guide plate 102 has a first light-incident surface 104, a second light-incident surface 105 and a third light-incident surface 106, wherein the first light-incident surface 104 is disposed opposite to the first light-emitting surface 212 of the light-emitting element 100, the second light-incident surface 105 is disposed opposite to the second light-emitting surface 222 of the light-emitting element 100, and the third light-incident surface 106 is parallel to the bottom surface 10 of the light-emitting element 100; wherein the planes containing the first light-incident surface 104 and the third light-incident surface 106 intersect, the planes containing the second light-incident surface 105 and the third light-incident surface 106 intersect, and the planes containing the first light-incident surface 104 and the second light-incident surface 105 intersect or are parallel. The light guide plate 102 has a light incident surface corresponding to the light-emitting element 100. Specifically, the light incident surface of the light guide plate 102 includes a first light incident surface 104, a second light incident surface 105, and a third light incident surface 106. All three are part of the light incident surface of the light guide plate 102 corresponding to the light-emitting element 100. The first light incident surface 104 corresponds to the first light emitting surface 212 of the light-emitting element 100, and the second light incident surface 105 corresponds to the second light emitting surface 222 of the light-emitting element 100. The first light incident surface 104 and the second light incident surface 105 are respectively inclined relative to the third light incident surface 106. That is, the first light incident surface 104 and the second light incident surface 105 are respectively inclined relative to the bottom surface of the light-emitting element 100, so that the light emitting surface of the light-emitting element 100 can form a good match with the light incident surface of the light guide plate 102, thereby ensuring that the light emitted by adjacent light-emitting elements 100 can be fully mixed at a predetermined angle.

[0039] It should be noted that when the first light-emitting surface 212 and the second light-emitting surface 222 are inclined at a certain angle relative to the plane containing the bottom surface 10, the first light-incident surface 104 and the second light-incident surface 105 are also inclined relative to the plane containing the third light-incident surface 106; when the first light-emitting surface 212 and the second light-emitting surface 222 are perpendicular to the plane containing the bottom surface 10, the first light-incident surface 104 and the second light-incident surface 105 are also perpendicular to the plane containing the third light-incident surface 106. The description of the first light-incident surface 104 and the second light-incident surface 105 as parallel refers to approximately parallel, that is, when the first light-incident surface 104 and the second light-incident surface 105 are not perfectly symmetrically arranged, the planes containing the first light-incident surface 104 and the second light-incident surface 105 will form a certain angle.

[0040] Optionally, the three sides of the first groove 103 can be joined by an arc to facilitate the manufacturing process of the groove 103 and prevent wear on the edges and corners of the groove.

[0041] Optional, please continue to refer to Figure 8 The angle between the plane containing the first light-incident surface 104 and the third light-incident surface 106 is γ1, and the angle between the plane containing the second light-incident surface 105 and the third light-incident surface 106 is γ2; the angle between the first light-emitting surface 212 and the plane containing the bottom surface 10 of the light-emitting element 100 is β1, and the angle between the second light-emitting surface 222 and the plane containing the bottom surface 10 of the light-emitting element 100 is β2. γ1 ≥ β1 and γ2 ≥ β2 can be set. That is, the angle of inclination of the light-incident surface of the light guide plate 102 is set to be greater than or equal to the angle of inclination of the light-emitting surface of the light-emitting element 100, so that the light emitted by the light-emitting element 100 is deflected at the light-incident surface of the light guide plate 102, further causing the light emitted by the light-emitting element 100 to converge near the light-incident surface of the light guide plate 102, thereby obtaining sufficient light mixing and enabling the light-emitting module 200 to achieve a good light-emitting effect.

[0042] Furthermore, γ1 can be set to γ2, that is, the angle γ1 between the planes containing the first light-incident surface 104 and the third light-incident surface 106 is equal to the angle γ2 between the planes containing the second light-incident surface 105 and the third light-incident surface 106. In other words, when the light-emitting surfaces of the light-emitting element 100 are symmetrically arranged, the light-incident surfaces of the light guide plate 102 can also be symmetrically arranged. On the one hand, this can form a good matching relationship with the light-emitting element 100, thereby ensuring that the light angle and range emitted by the light-emitting element 100 on both sides are consistent, thus forming uniform light mixing. On the other hand, it is also beneficial to the manufacturing process of the light guide plate, eliminating the need for differentiated design and saving costs.

[0043] Optional, please continue to refer to Figure 6 The light guide plate 102 has a light mixing area C1 and a non-light mixing area. The light mixing area C1 refers to the region where the light emitted by adjacent light-emitting elements 100 mixes, and the non-light mixing area refers to other areas of the light guide plate 102 used for light conduction. The light mixing area C1 is located between two adjacent light-emitting elements 100, and can be specifically divided according to the light emission range of the light-emitting chip 3 in the light-emitting element 100. Optionally, this application provides a division range for the light mixing area C1, where the distance between the length centers of two adjacent light-emitting elements 100 is taken as the length c10 of the light mixing area C1 along the first direction X, and the width c11 of the light mixing area C1 extends along the second direction Y from the side of the width center of the light-emitting element 100 away from the light incident surface of the light guide plate 102, and the width c11 can be selected from 2.5mm to 3.5mm. The bottom of the light guide plate 102 has a dot pattern, and the bottom of the light guide plate 102 refers to... The side facing away from the light-emitting surface of the light guide plate 102 is the side of the light-emitting module 200 provided in this application. The light strip formed by the light-emitting element 100 is located on the side of the light guide plate 102. The side of the light guide plate 102 corresponding to the light strip is the light-incident surface. The light emitted by the light-emitting element 100 is fully mixed near the light-incident surface of the light guide plate 102. The mixed light is conducted through the light guide plate 102 and scattered and refracted by the dots at the bottom of the light guide plate 102, thereby being emitted towards the light-emitting surface opposite to the bottom and converted into a uniformly emitting surface light source. The dot density in the light mixing area C1 of the light guide plate 102 is greater than that in the non-light mixing area. The purpose of this setting is to allow the light in the light mixing area C1 to be more scattered and refracted, thereby conducting a large amount of uniformly mixed light outward, which is beneficial to further improve the light mixing degree of the light-emitting element 100 and the uniformity of the light emission of the light-emitting module 200.

[0044] Furthermore, this application is not limited to this. Other structures, including light guide plates, can be set as needed. The shape and size of the dot structure can also be different, as long as the degree of light mixing in the mixing area is higher than that in other areas.

[0045] Optionally, the light-emitting chips 3 of different colors in the light-emitting element 100 can be driven synchronously, or the light-emitting chips 3 of different colors in the light-emitting element 100 can be driven individually, that is, lit separately, so that the light-emitting module can easily control the light-emitting element 100. When the light-emitting chip 3 is driven individually, the different light-emitting chips 3 have different solder pads to facilitate control.

[0046] Optional, please continue to refer to Figure 6 Along the arrangement direction of the light-emitting elements 100, the light strip has opposing first and second sides, wherein the light-emitting elements 100 include a first light-emitting element 110 and a second light-emitting element 111, the first light-emitting element 110 being closer to the first side and the second light-emitting element 111 being closer to the second side; when the first side is Figure 6 The left side, the second side is Figure 6 In the right-hand side of the light strip, the first light-emitting element 110 is located on the far left, and the second light-emitting element 111 is located on the far right. Both the first light-emitting element 110 and the second light-emitting element 111 include a first color light-emitting chip 31 and a second color light-emitting chip 32. When the first color light-emitting chip 31 of the first light-emitting element 110 is located on the left and the second color light-emitting chip 32 is located on the right, the first color light-emitting chip 31 is closer to the first side than the second color light-emitting chip 32. Therefore, when the first light-emitting element 110 is lit, only the second color light-emitting chip 32 needs to be lit, and the first color light-emitting chip 31 does not need to be lit. At this time, if the first color light-emitting chip 31 is lit, the light emitted by it cannot mix with the light of other light-emitting chips 3. Therefore, it is set to not be lit. The first color light-emitting chip 31 is lit to prevent the light emitted by the first color light-emitting chip 31 from failing to mix with other light-emitting chips 3, thus preventing abnormal color mixing at the edge of the light strip. Similarly, when the first color light-emitting chip 31 of the second light-emitting element 111 is located on the left and the second color light-emitting chip 32 is located on the right, the second color light-emitting chip 32 is closer to the second side than the first color light-emitting chip 31. Therefore, when the second light-emitting element 111 is lit, only the first color light-emitting chip 31 needs to be lit, and the second color light-emitting chip 32 does not need to be lit. If the second color light-emitting chip 32 is lit, the light it emits cannot mix with the light emitted by other light-emitting chips 3. Therefore, it is set not to be lit to prevent the light emitted by the second color light-emitting chip 32 from failing to mix with other light-emitting chips 3, thus preventing abnormal color mixing at the edge of the light strip.

[0047] Optionally, this application does not limit the placement of different colored light-emitting chips 3 inside the light-emitting element 100. In other embodiments provided in this application, the first colored light-emitting chip 31 may also be located on the right side inside the light-emitting element 100, while the second colored light-emitting chip 32 may be located on the left side inside the light-emitting element 100.

[0048] Figure 9The diagram shown is a schematic representation of a display device provided in an embodiment of this application. Please refer to the provided text for further details. Figures 1-8 , refer to Figure 9 Based on the same inventive concept, this application also provides a display device 300, which includes a light-emitting module 200; the light-emitting module 200 is any of the light-emitting modules 200 provided in this application. Furthermore, the display device 300 also includes a display panel (not shown in the figure) located on the light-emitting surface side of the light-emitting module 200.

[0049] It should be noted that the embodiments of the display device 300 provided in this application can refer to the embodiments of the light-emitting module 200 described above, and the repeated parts will not be described again. The display device 300 provided in this application can be any product and component with display function, such as mobile phone, tablet computer, television, monitor, laptop computer, vehicle display screen, navigator, etc.

[0050] As can be seen from the above embodiments, the light-emitting element, light-emitting module, and display device provided by the present invention achieve at least the following beneficial effects: This application provides a light-emitting element, a light-emitting module, and a display device. The light-emitting element includes a support component and a packaging cavity. A slope or a perpendicular surface to the bottom is formed on a portion of the surface of the support component, causing the light-emitting chip placed on the surface of the support component to be tilted at a certain angle or perpendicular to the bottom surface. Light-emitting chips of different colors are packaged in at least two packaging cavities of the light-emitting element, and the tilt directions of the different colored light-emitting chips are different, so that the light-emitting element can emit light of different colors in different directions. In the light-emitting module formed by this light-emitting element, the light-emitting chips of different colors in adjacent light-emitting elements are arranged adjacently, and the light guide plate forms a groove. The light-emitting element is embedded in the groove, so that the light of adjacent light-emitting chips of different colors can be fully mixed. The fully mixed light is guided out through the light guide plate between the grooves, so that the light-emitting module can emit light uniformly and avoid visible color unevenness. The display device using this light-emitting module obtains a better display effect.

[0051] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A light-emitting element, characterized in that, It includes a support component and at least two encapsulation cavities. The support component includes a bottom surface, a first surface, and a second surface. The first surface intersects with the plane containing the bottom surface, and the second surface intersects with the plane containing the bottom surface. The plane containing the first surface and the second surface are either intersecting or parallel. The encapsulation cavity includes a first encapsulation cavity and a second encapsulation cavity, the first surface being the first bottom surface of the first encapsulation cavity, and the second surface being the second bottom surface of the second encapsulation cavity; The light-emitting element includes a light-emitting chip, which includes a first color light-emitting chip and a second color light-emitting chip. The first color light-emitting chip is located on the side of the first bottom surface away from the bottom surface, and the second color light-emitting chip is located on the side of the second bottom surface away from the bottom surface. The light-emitting element includes a third-color phosphor, which is filled within the encapsulation cavity; The first encapsulation cavity has a first light-emitting surface, and the second encapsulation cavity has a second light-emitting surface. The first light-emitting surface intersects with the plane containing the bottom surface, and the second light-emitting surface intersects with the plane containing the bottom surface. The planes containing the first light-emitting surface and the second light-emitting surface are either intersecting or parallel.

2. The light-emitting element according to claim 1, characterized in that, The first color light-emitting chip is a blue light-emitting chip, the second color light-emitting chip is a green light-emitting chip, and the third color phosphor is a red phosphor.

3. The light-emitting element according to claim 1, characterized in that, The angle between the first surface and the plane containing the bottom surface is α1, and the angle between the second surface and the plane containing the bottom surface is α2, where α1 = α2.

4. The light-emitting element according to claim 3, characterized in that, The angle between the first light-emitting surface and the plane containing the bottom surface is β1, and the angle between the second light-emitting surface and the plane containing the bottom surface is β2, where β1 = α1 and β2 = α2.

5. The light-emitting element according to claim 1, characterized in that, The angle between the first surface and the plane containing the bottom surface is α1, and the angle between the second surface and the plane containing the bottom surface is α2. 30°≤α1≤90°，30°≤α2≤90°。 6. The light-emitting element according to claim 5, characterized in that, The angle between the first light-emitting surface and the plane containing the bottom surface is β1, and the angle between the second light-emitting surface and the plane containing the bottom surface is β2, where β1 = α1 and β2 = α2.

7. The light-emitting element according to claim 1, characterized in that, The support component includes a partition, through which the at least two encapsulation cavities are separated, extending from the first encapsulation cavity to the second encapsulation cavity, and the minimum width of the partition is ≥0.35mm.

8. A light-emitting module, characterized in that, The light-emitting module includes a light-emitting element as described in any one of claims 1 to 7, the light-emitting module includes a light strip, the light-emitting element is located on one side of the light strip, and the first color light-emitting chip of one of the two adjacent light-emitting elements and the second color light-emitting chip of the other light-emitting element are adjacent to each other; The light-emitting module includes a light guide plate, which is located on one side of the first light-emitting surface and the second light-emitting surface of the light-emitting element; The light-incident surface of the light guide plate has a first groove, and the light-emitting element is embedded in the first groove.

9. The light-emitting module according to claim 8, characterized in that, The light guide plate has a third light incident surface, which is parallel to the bottom surface of the light-emitting element; The surface of the first groove has a first light-incident surface and a second light-incident surface. The first light-incident surface is disposed opposite to the first light-outceasing surface, and the second light-incident surface is disposed opposite to the second light-outceasing surface. The plane containing the first light-incident surface and the third light-incident surface intersects, and the plane containing the second light-incident surface and the third light-incident surface intersects or is parallel.

10. The light-emitting module according to claim 9, characterized in that, The angle between the plane containing the first light-incident surface and the plane containing the third light-incident surface is γ1, and the angle between the plane containing the second light-incident surface and the plane containing the third light-incident surface is γ2. The angle between the first light-emitting surface and the plane containing the bottom surface is β1, and the angle between the second light-emitting surface and the plane containing the bottom surface is β2. γ1≥β1, γ2≥β2.

11. The light-emitting module according to claim 10, characterized in that, γ1=γ2.

12. The light-emitting module according to claim 8, characterized in that, The light guide plate has a light mixing area and a non-light mixing area. The light mixing area is located between two adjacent light-emitting elements, and the dot density of the light mixing area is greater than that of the non-light mixing area.

13. The light-emitting module according to claim 8, characterized in that, The first color light-emitting chip and the second color light-emitting chip are driven separately.

14. The light-emitting module according to claim 8, characterized in that, Along the arrangement direction of the light-emitting elements, the light strip has a first side and a second side opposite to each other. The light-emitting elements include a first light-emitting element and a second light-emitting element, with the first light-emitting element close to the first side and the second light-emitting element close to the second side. The first color light-emitting chip of the first light-emitting element is closer to the first side than the second color light-emitting chip; the second color light-emitting chip of the first light-emitting element is lit, and the first color light-emitting chip of the first light-emitting element is not lit. The second color light-emitting chip of the second light-emitting element is closer to the second side than the first color light-emitting chip. The first color light-emitting chip of the second light-emitting element is lit, while the second color light-emitting chip of the second light-emitting element is not lit.

15. A display device, characterized in that, Includes the light-emitting module as described in any one of claims 8 to 14.

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