Backlight assembly, screen module and electronic equipment

Abstract

The utility model particularly discloses a backlight assembly, a screen module and electronic equipment, the backlight assembly comprises a frame part, a light source part and a first heat dissipation piece, the frame part comprises a metal frame and a rubber frame, the rubber frame is connected with the metal frame, the metal frame surrounds the outer portion of a rubber block, the light source part is installed in the rubber frame, and the first heat dissipation piece is installed in the rubber frame. The first heat dissipation piece is located between the light source component and the rubber frame, and one end of the first heat dissipation piece makes contact with the metal frame. According to the screen module, the heat dissipation effect of the screen can be improved.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of electronic equipment, and in particular relates to a backlight assembly, a screen module and an electronic equipment. Background Art

[0002] When users continue to use electronic devices or use them outdoors, the high-brightness mode of the screen will be activated. The high-brightness mode usually increases the brightness by increasing the current of the LED. The increase in current will inevitably lead to increased heat, affecting the user experience. Summary of the invention

[0003] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present disclosure provides a backlight assembly that can improve the heat dissipation effect of a screen.

[0004] The embodiment of the present disclosure also provides a screen module.

[0005] An embodiment of the present disclosure also provides an electronic device.

[0006] The backlight assembly of the disclosed embodiment includes: a frame component, the frame component includes a metal frame and a plastic frame, the plastic frame is connected to the metal frame, and the metal frame surrounds the outside of the plastic frame; a light source component, the light source component is installed in the plastic frame; a first heat sink, the first heat sink is located between the light source component and the plastic frame, and one end of the first heat sink is in contact with the metal frame.

[0007] The backlight assembly of the disclosed embodiment can improve the heat dissipation effect of the screen.

[0008] In some embodiments, a mounting groove is provided on one side of the rubber frame adjacent to the light source component, the first heat sink is located in the mounting groove, and an end surface of one side of the first heat sink adjacent to the light source component is flush with an end surface of one side of the rubber frame adjacent to the heat sink component.

[0009] In some embodiments, the plastic frame has a receiving groove, the receiving groove is connected to the mounting groove, and the light source component is located in the receiving groove.

[0010] In some embodiments, the metal frame has a through hole, the through hole passes through the metal frame, the first heat sink at least partially passes through the through hole, and one side of the first heat sink that passes through the through hole contacts the metal frame.

[0011] In some embodiments, the backlight assembly further comprises a second heat sink, the second heat sink contacts the metal frame and is located on a side of the metal frame away from the light source component, and the first heat sink contacts the second heat sink through a side of the through hole.

[0012] In some embodiments, the light source component includes a light emitting member and a light guiding member, and the light emitting member is arranged adjacent to the first heat dissipating member relative to the light guiding member.

[0013] In some embodiments, there are multiple light-emitting members, and the multiple light-emitting members are arranged at intervals along the width direction of the light guide. There are multiple through holes, and the multiple through holes are arranged at intervals along the width direction of the light guide, and the positions of the multiple light-emitting members correspond to the positions of the multiple through holes.

[0014] In some embodiments, a preset distance A is present between a side of the through hole adjacent to an edge of the second heat dissipation element and an edge of the second heat dissipation element, and 0.1 mm≤A≤0.3 mm.

[0015] In some embodiments, the first heat dissipation element is a heat dissipation gel, and / or the second heat dissipation element is a graphite sheet.

[0016] The screen module of the disclosed embodiment is characterized in that it comprises: a backlight assembly, which is the backlight assembly described in any one of the above embodiments; a cover plate, which is connected to the frame component and is located on a side of the light source component away from the frame component.

[0017] The electronic device of the embodiment of the present disclosure includes the screen module as described in any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a cross-sectional view of a screen module according to an embodiment of the present disclosure.

[0019] Figure 2 It is a top view of the screen module of the embodiment of the present disclosure.

[0020] Figure 3 yes Figure 2 A partial enlarged view of area A shown in FIG.

[0021] Figure 4 It is a schematic diagram of the positions of the through holes and the second heat sink in the embodiment of the present disclosure.

[0022] Reference numerals:

[0023] Frame component 1, metal frame 11, through hole 111, plastic frame 12, mounting groove 121, receiving groove 122,

[0024] Light source component 2, light emitting element 21, light guide element 22,

[0025] A first heat sink 3 , a second heat sink 4 , and a cover plate 5 . DETAILED DESCRIPTION

[0026] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, but should not be understood as limiting the present disclosure.

[0027] The screen module of the disclosed embodiment includes a frame component 1, a light source component 2 and a first heat sink 3. The frame component 1 includes a metal frame 11 and a rubber frame 12. The rubber frame 12 is connected to the metal frame 11, and the metal frame 11 surrounds the outside of the rubber frame 12. The light source component 2 is installed in the rubber frame 12. The first heat sink 3 is located between the light source component 2 and the rubber frame 12, and one end of the first heat sink 3 is in contact with the metal frame 11.

[0028] For example, the first heat sink 3 is a heat dissipation gel, specifically, Figure 1 As shown, the frame component 1 is located at the lower end of the light source component 2, the metal frame 11 is located outside the plastic frame 12, and the light source component 2 is located inside the plastic frame 12, the first heat sink 3 is located between the plastic frame 12 and the light source component 2, and one end of the first heat sink 3 away from the light source component 2 is in contact with the metal frame 11. There is a preset gap between the first heat sink 3 and the light source component 2, or the first heat sink 3 is in direct contact with the light source component 2.

[0029] The backlight assembly of the disclosed embodiment can directly transfer the heat generated by the light source component 2 to the metal frame 11 by providing a first heat sink 3, and the metal frame 11 is used for heat dissipation, thereby improving the heat dissipation effect of the screen, and further extending or not terminating the high brightness mode of the screen, thereby improving the user experience.

[0030] In some embodiments, a mounting groove 121 is provided on one side of the plastic frame 12 adjacent to the light source component 2 , the first heat sink 3 is located in the mounting groove 121 , and an end surface of the first heat sink 3 adjacent to the light source component 2 is flush with an end surface of the plastic frame 12 adjacent to the heat sink component.

[0031] Specifically, Figure 1 As shown, the upper end of the rubber frame 12 has a mounting groove 121, which extends in the left-right direction. The first heat sink 3 is placed in the mounting groove 121, and the upper end surface of the first heat sink 3 is flush with the upper end surface of the rubber frame 12, thereby ensuring the connection stability between the rubber frame 12 and the first heat sink 3 and improving the installation accuracy of the first heat sink 3.

[0032] In some embodiments, the plastic frame 12 has a receiving groove 122 , the receiving groove 122 is communicated with the mounting groove 121 , and the light source component 2 is located in the receiving groove 122 .

[0033] Specifically, Figure 1 and Figure 2As shown, the rubber frame 12 has a receiving groove 122 connected to the installation groove 121, and the light source component 2 is installed in the receiving groove 122. By being arranged in the receiving groove 122, the installation and positioning accuracy of the light source component 2 can be improved, thereby improving the display quality of the screen body, and can also ensure the position accuracy between the first heat sink 3 and the light source component 2, thereby ensuring the heat dissipation effect of the screen module.

[0034] It should be noted that the receiving groove 122 extends in the left-right direction to form a long strip-shaped space, and the shape and size of the receiving groove 122 can be adapted according to the shape and size of the light source component 2 .

[0035] In some embodiments, the metal frame 11 has a through hole 111 that penetrates the metal frame 11 , the first heat sink 3 at least partially passes through the through hole 111 , and one side of the first heat sink 3 that passes through the through hole 111 contacts the metal frame 11 .

[0036] Specifically, Figure 1 As shown, the through hole 111 on the metal frame 11 passes through the metal frame 11 in the front-to-back direction, the side of the first heat sink 3 away from the light source component 2 passes through the through hole 111, and the side of the first heat sink 3 passing through the through hole 111 contacts the metal frame 11. By utilizing the through hole 111 and the first heat sink 3, the heat generated by the light source component 2 can be conducted to the metal frame 11, and the metal frame 11 is utilized to dissipate heat, thereby improving the heat dissipation effect of the light source component 2.

[0037] In some embodiments, the backlight assembly further includes a second heat sink 4, which contacts the metal frame 11 and is located on a side of the metal frame 11 away from the light source component 2, and the first heat sink 3 contacts the second heat sink 4 through a side of the through hole 111.

[0038] For example, the second heat sink 4 is a graphite sheet, specifically, as Figure 1 As shown, the second heat sink 4 is located on the rear side of the metal frame 11, the second heat sink is in contact with the metal frame 11, and one end of the first heat sink 3 passes through the through hole 111 and is in contact with the second heat sink 4. The first heat sink 3 conducts the heat generated by the light source component 2 to the second heat sink 4 through the through hole 111, and uses the second heat sink 4 to dissipate the heat, thereby dissipating the heat and improving the heat dissipation performance of the screen module.

[0039] In some embodiments, the light source component 2 includes a light emitting member 21 and a light guiding member 22 , and the light emitting member 21 is arranged adjacent to the first heat dissipation member 3 relative to the light guiding member 22 .

[0040] For example, the light emitting member 21 is an LED, which is installed in the receiving groove 122, and the light emitting end of the light emitting member 21 faces the light guide member 22. For example, the light guide member 22 is a light guide plate, and the light emitting member 21 is located between the light guide member 22 and the first heat sink 3. The light emitting member 21 is arranged adjacent to the first heat sink 3, which is conducive to the heat generated by the light emitting member 21 being transferred to the first heat sink 3, thereby improving the heat dissipation effect of the entire screen module.

[0041] In some embodiments, there are multiple light-emitting members 21, which are arranged at intervals along the width direction of the light guide 22; there are multiple through holes 111, which are arranged at intervals along the width direction of the light guide 22, and the positions of the multiple light-emitting members 21 and the multiple through holes 111 correspond to each other.

[0042] Specifically, Figure 2 and Figure 3 As shown, there are multiple light-emitting elements 21, and the multiple light-emitting elements 21 are arranged at intervals in the left-right direction. By setting multiple light-emitting elements 21, not only the screen brightness can be improved, but also the uniformity of the screen brightness distribution can be improved. The number of through holes 111 is also multiple, and the number of through holes 111 is the same as the number of light-emitting elements 21, or the number of through holes 111 is twice the number of light-emitting elements 21.

[0043] For example, multiple through holes 111 are divided into multiple groups of through holes 111 in the left-right direction, each group of through holes 111 includes two through holes 111, and each group of through holes 111 corresponds to a light-emitting component 21. By arranging multiple through holes 111 at a light-emitting component 21, the heat dissipation efficiency of the light-emitting component 21 can be improved.

[0044] It should be noted that the number of through holes 111 does not need to be too large. When the number of through holes 111 is too large, the strength of the metal frame 11 is easily reduced, causing the metal frame 11 to warp and leak light.

[0045] In some embodiments, a preset distance A is present between a side of the through hole 111 adjacent to the edge of the second heat dissipation element 4 and the edge of the second heat dissipation element 4 , and 0.1 mm≤A≤0.3 mm.

[0046] Specifically, Figure 3 and Figure 4As shown, when the through hole 111 is located in the middle, the side of the through hole 111 adjacent to the outer edge of the second heat sink 4 is the lower side, that is, the preset distance between the lower side of the through hole 111 and the outer edge of the second heat sink 4 is A, and the side of the rightmost through hole 111 adjacent to the outer edge of the second heat sink 4 is the right side and the lower side, respectively, and the preset distance between the rightmost through hole 111 and the outer edge of the second heat sink 4 is A. The side of the leftmost through hole 111 adjacent to the outer edge of the second heat sink 4 is the left side and the lower side, respectively, and the preset distance between the leftmost through hole 111 and the outer edge of the second heat sink 4 is A.

[0047] There is a preset distance between the outer edge of the through hole 111 and the outer edge of the second heat sink 4. In other words, the second heat sink 4 completely covers the through hole 111, and the width covered by the second heat sink 4 is the preset distance. For example, the preset distance A can be 0.1 mm, 0.15 mm, 0.2 mm, or 0.3 mm.

[0048] It should be noted that when the preset distance is too small, that is, less than 0.1, the first heat sink 3 is likely to leak through the through hole 111, thereby affecting the heat dissipation of the light source component 2 or causing light leakage. On the contrary, although the larger the preset distance, the better, the larger the preset distance, the larger the area of ​​the second heat sink 4, causing the bottom of the second heat sink 4 to exceed the entire screen module, affecting the arrangement of the second heat sink 4, or causing the volume of the entire screen module to increase, which is not conducive to the compactness of the screen module.

[0049] The screen module of the embodiment of the present disclosure includes a backlight assembly and a cover plate 5 . The backlight assembly is the backlight assembly of any one of the above embodiments. The cover plate 5 is connected to the frame component 1 , and the cover plate 5 is located on the side of the light source component 2 away from the frame component 1 .

[0050] Specifically, Figure 1 As shown, the cover plate 5 is located at the front side of the light source component 2 . In other words, the cover plate 5 is located at the outside of the light source component 2 . By providing the cover plate 5 , the light source component 2 can be sealed into the frame component 1 .

[0051] The electronic device of the embodiment of the present disclosure includes a screen module as in any of the above embodiments. In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure 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 disclosure.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0054] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] In the present disclosure, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0056] Although the embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A backlight assembly, characterized in that: include: A frame component, the frame component comprising a metal frame and a plastic frame, the plastic frame is connected to the metal frame, and the metal frame surrounds the outside of the plastic frame; A light source component, the light source component is installed in the rubber frame; A first heat sink is located between the light source component and the plastic frame, and one end of the first heat sink is in contact with the metal frame.

2. The backlight assembly according to claim 1, characterized in that: A mounting groove is provided on one side of the rubber frame adjacent to the light source component. The first heat sink is located in the mounting groove. An end surface of the first heat sink adjacent to the light source component is flush with an end surface of the rubber frame adjacent to the heat sink component.

3. The backlight assembly according to claim 2, characterized in that: The rubber frame is provided with a receiving groove, the receiving groove is communicated with the mounting groove, and the light source component is located in the receiving groove.

4. The backlight assembly according to claim 1, wherein: The metal frame has a through hole, the through hole passes through the metal frame, the first heat sink at least partially passes through the through hole, and one side of the first heat sink that passes through the through hole contacts the metal frame.

5. The backlight assembly according to claim 4, characterized in that: A second heat sink is also included. The second heat sink contacts the metal frame and is located on a side of the metal frame away from the light source component. The first heat sink contacts the second heat sink through a side of the through hole.

6. The backlight assembly according to claim 5, characterized in that: The light source component includes a light emitting member and a light guiding member, and the light emitting member is arranged adjacent to the first heat dissipating member relative to the light guiding member.

7. The backlight assembly according to claim 6, wherein: There are multiple light-emitting members, which are arranged at intervals along the width direction of the light guide. There are multiple through holes, which are arranged at intervals along the width direction of the light guide, and the positions of the multiple light-emitting members and the multiple through holes correspond to each other.

8. The backlight assembly according to claim 7, wherein: A preset distance A is provided between a side of the through hole adjacent to the edge of the second heat dissipation element and the edge of the second heat dissipation element, and 0.1 mm≤A≤0.3 mm.

9. The backlight assembly according to any one of claims 5 to 8, characterized in that: The first heat sink is a heat dissipation gel, and / or the second heat sink is a graphite sheet.

10. A screen module, characterized in that: include: A backlight assembly, wherein the backlight assembly is the backlight assembly according to any one of claims 1 to 9; A cover plate is connected to the frame component and is located on a side of the light source component away from the frame component.

11. An electronic device, characterized in that: Comprising the screen module as claimed in claim 10.

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