Light-emitting packaging structure and light-emitting device
Patent Information
- Application Number
- TW115201010
- Authority / Receiving Office
- TW · TW
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2025-10-02
- Filing Date
- 2026-01-30
- Publication Date
- 2026-08-11
- Estimated Expiration
- 2036-01-29
Smart Images
Figure 00000000_0000_ABST
Abstract
Claims
1. A light-emitting encapsulation structure, comprising: One substrate; At least one light-emitting unit is disposed on one surface of the substrate; A first reflective layer is disposed on the surface of the substrate and surrounds the at least one light-emitting unit; At least one optical layer is correspondingly covered above the at least one light-emitting unit; a second reflective layer is disposed on a first surface of the first reflective layer away from the substrate and surrounds the side surface of the at least one optical layer; wherein the second reflective layer has different optical properties from the first reflective layer; wherein the width of the at least one optical layer in a first direction is greater than the width of the at least one light-emitting unit in the first direction, and a second side surface of the second reflective layer in the first direction does not extend beyond a first side surface of the first reflective layer in the first direction.
2. The light-emitting encapsulation structure according to claim 1, wherein, The number of the at least one light-emitting unit and the at least one optical layer is multiple; the multiple light-emitting units are arranged at intervals on the substrate in the first direction, and the multiple optical layers are respectively arranged corresponding to the multiple light-emitting units.
3. The light-emitting encapsulation structure according to claim 2, wherein, The second reflective layer is located between the plurality of optical layers.
4. The light-emitting encapsulation structure according to claim 1, wherein, In a cross-section of the light-emitting encapsulation structure along the first direction or a second direction perpendicular to the first direction, the second reflective layer has a second predetermined thickness along a third direction perpendicular to both the first and second directions, which is less than the first predetermined thickness of the first reflective layer along the third direction.
5. The light-emitting encapsulation structure according to claim 4, wherein, The first predetermined thickness does not exceed 150 micrometers, and the second predetermined thickness does not exceed 120 micrometers.
6. The light-emitting encapsulation structure according to claim 1, wherein, The portion of the first reflective layer extending along the first direction has a first width, and the portion of the second reflective layer extending along the first direction has a second width, wherein the first width is greater than the second width.
7. The light-emitting encapsulation structure according to claim 6, wherein, The first width is between 0.05 mm and 35 mm, and the second width is between 0.03 mm and 30 mm.
8. The light-emitting encapsulation structure according to claim 1, wherein, A top surface of the at least one light-emitting unit is at a first height relative to the substrate at a position equal to or lower than a second height relative to the substrate of the first surface of the first reflective layer.
9. The light-emitting encapsulation structure according to claim 1, wherein, In the first direction, the first side of the first reflective layer does not extend beyond one side of the substrate.
10. The light-emitting encapsulation structure according to claim 9, wherein, In the first direction, the second side of the second reflective layer is flush with the first side of the first reflective layer.
11. The light-emitting encapsulation structure according to claim 9, wherein, A portion of the first surface of the first reflective layer is covered by the second reflective layer, while another portion of the first surface of the first reflective layer is exposed outside the second reflective layer and is defined as a first-order surface.
12. The light-emitting encapsulation structure according to claim 9, wherein, One portion of the surface of the substrate is covered by the first reflective layer, while another portion of the surface of the substrate is exposed outside the first reflective layer and is defined as a first-step surface.
13. The light-emitting encapsulation structure according to claim 12, wherein, The second side of the second reflective layer in the first direction is flush with the first side of the first reflective layer in the first direction.
14. The light-emitting encapsulation structure according to claim 12, wherein, A portion of the first surface of the first reflective layer is covered by the second reflective layer, while another portion of the first surface of the first reflective layer is exposed outside the second reflective layer and is defined as a second-order surface.
15. The light-emitting encapsulation structure according to any one of claims 1 to 14, wherein, The light-emitting encapsulation structure further includes a protective layer that covers at least one of the at least one optical layer, the second reflective layer, or the first reflective layer.
16. The light-emitting encapsulation structure according to claim 15, wherein, The protective layer is at least one of a fluorinated layer or an inorganic silicon dioxide layer.
17. The light-emitting encapsulation structure according to claim 3, wherein, In the first direction, the portion of the second reflective layer between any two adjacent optical layers has a predetermined width, the predetermined width being between 30 micrometers and 500 micrometers.
18. The light-emitting encapsulation structure according to claim 15, wherein, The second reflective layer contains multiple light-absorbing particles or light-shielding materials.
19. The light-emitting encapsulation structure according to claim 18, wherein, The weight percentage of the plurality of light-absorbing particles or the light-shielding material in the second reflective layer is between 0.05% and 10%.
20. The light-emitting encapsulation structure according to claim 1, wherein, The second reflective layer comprises carbon black and silicone, epoxy, or a mixture thereof.
21. The light-emitting encapsulation structure according to claim 8, wherein, The at least one light-emitting unit has a bottom surface opposite the top surface, and an electrode portion is disposed on the bottom surface. The at least one light-emitting unit is electrically connected to the substrate through the electrode portion. The first reflective layer also covers the bottom surface of the at least one light-emitting unit, exposing the electrode portion.
22. The light-emitting encapsulation structure according to claim 1, wherein, The at least one optical layer is either a fluorescent layer or a light diffusion layer.
23. The light-emitting encapsulation structure according to claim 1, wherein, The reflectivity of the second reflective layer is less than that of the first reflective layer.
24. A light-emitting encapsulation structure, comprising: One substrate; A first reflective layer is disposed on the substrate; Multiple light-emitting units are arranged at intervals on the substrate and are respectively located in the first reflective layer; Multiple optical layers are respectively disposed on the multiple light-emitting units; a second reflective layer is disposed on the first reflective layer, covering the periphery of the multiple optical layers and exposing an upper surface of the multiple optical layers; wherein the second reflective layer has different optical properties from the first reflective layer; wherein the area of each light-emitting unit projecting onto the substrate along a thickness direction is located in the area of each optical layer projecting onto the substrate along the thickness direction.
25. The light-emitting encapsulation structure according to claim 24, wherein, The second reflective layer has a second side surface in a width direction that does not extend beyond a first side surface of the first reflective layer in the width direction.
26. A light-emitting device comprising: a device body; and a light-emitting encapsulation structure as described in any one of claims 1 to 25, the light-emitting encapsulation structure being disposed within the device body.