KR-20260064459-A - Lighting Device and Lighting Module including the same

Abstract

A lighting device according to an embodiment comprises: a substrate; a plurality of light-emitting regions disposed on the substrate and having a light source; a partition disposed between each of the plurality of light-emitting regions; a light guide layer covering the light source within the light-emitting region; and a diffusion layer disposed on the light guide layer; wherein the plurality of light-emitting regions includes a first light-emitting region having a first light source, a second light-emitting region having a second light source, and a third light-emitting region having a third light source, and at least one of the number of the first light source, the second light source, and the third light source may be different.

Inventors

• 고영욱
• 엄동일
• 고광현

Assignees

• 엘지이노텍 주식회사

Dates

Publication Date

20260507

Application Date

20250515

Priority Date

20241031

Claims (12)

1. Substrate; A plurality of light-emitting regions disposed on the above substrate and having a light source; A partition wall disposed between each of the plurality of light-emitting regions above; A molding layer covering the light source within the above-mentioned light-emitting region; and A diffusion layer disposed on the above-mentioned molding layer; comprising The above plurality of light-emitting regions are, A lighting device comprising a first light-emitting region having one first light source and a second light-emitting region having a plurality of second light sources.
2. In paragraph 1, A lighting device in which the second light source is arranged within the partition in the form of (m 1 X n 1 ) or (m 1 :1, n 1 :2 or greater integer).
3. In paragraph 2, It further includes a third light-emitting region having a plurality of third light sources, and A lighting device in which the third light source is arranged in the form of a matrix (m 2 X n 2 ), (m 2 : an integer greater than or equal to 2, n 2 : an integer greater than or equal to 2) within the partition.
4. In paragraph 3, A lighting device in which the partition wall is not located between each of the second light source and between each of the third light source.
5. In paragraph 1, A lighting device in which the height of the upper surface of the molding layer is lower than the height of the upper surface of the bulkhead.
6. In paragraph 1, A lighting device in which the height of the lower surface of the above diffusion layer is lower than the height of the upper surface of the above partition.
7. In paragraph 3, A lighting device in which the area of the second light-emitting region is larger than the area of the first light-emitting region.
8. In Paragraph 7, A lighting device in which the area of the third light-emitting region is larger than the area of the second light-emitting region.
9. In paragraph 1, A lighting device in which the first light-emitting region and the second light-emitting region display different colors.
10. In paragraph 1, The above partition is a lighting device having a black color.
11. In Paragraph 10, The above partition is a lighting device comprising silicon and blue carbon.
12. A lighting module comprising a lighting device according to any one of claims 1 to 11.

Description

Lighting Device and Lighting Module including the same An embodiment of the invention relates to a lighting device and a lighting module including the same. Recently, lighting devices composed of hundreds or thousands of small LEDs are being applied to automotive lighting modules, and various pixel lighting technologies are being proposed, particularly for automotive lighting modules. For example, since pixel lighting technology is applied to lighting devices to allow each LED to be controlled independently, it is possible to adjust the lighting according to the surrounding environment or create various lighting effects to produce unique signature lighting. Meanwhile, FIG. 1 is a drawing showing a lighting device with pixel lighting technology applied. Referring to FIG. 1, each pixel area of the lighting device has the same shape and the same number of light sources (120), and there is a problem that visibility is reduced when displaying information such as text or images due to the partition wall (115) placed between each light source (120). In addition, a lens part (112) is spaced apart from the light source (120) with an air gap in between, and the lens part (112) is positioned higher than the partition wall (115), so there is a problem that it is difficult to implement surface light emission. Figure 1 is a drawing showing an internally studied lighting device. FIG. 2 is a cross-sectional view of a lighting device according to an embodiment. FIG. 3 is a plan view of a lighting device according to an embodiment. FIG. 4 is a drawing showing an example of operation of a lighting device according to an embodiment. FIG. 5 is a drawing showing an example of operation of a lighting device according to an embodiment. FIG. 6 is a plan view of a vehicle with a lighting device applied according to an embodiment of the invention. Figure 7 is an example of a display device coupled to the vehicle of Figure 6. Figures 8 (a) and (b) are examples of symbols or characters displayed by the display device of Figure 6. Hereinafter, preferred embodiments of the invention will be described in detail with reference to the attached drawings. The technical concept of the present invention is not limited to the described embodiments but can be implemented in various different forms, and within the scope of the technical concept of the present invention, one or more of the components among the embodiments may be selectively combined or substituted. Furthermore, terms used in the embodiments of the present invention (including technical and scientific terms) may be interpreted in a meaning generally understood by those skilled in the art to which the present invention belongs, unless explicitly and specifically defined otherwise. Terms used generally, such as those defined in advance, may be interpreted by considering their meaning in the context of the relevant technology. Additionally, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention. In this specification, the singular form may include the plural form unless specifically stated otherwise in the text, and when described as "at least one of A and B and C (or more than one)," it may include one or more of all combinations that can be formed from A, B, and C. In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments of the present invention. These terms are intended merely to distinguish the component from other components and do not determine the essence, order, or sequence of the component. Furthermore, when it is stated that a component is "connected," "combined," or "connected" to another component, this may include not only cases where the component is directly connected, combined, or connected to the other component, but also cases where it is "connected," "combined," or "connected" due to another component located between the component and the other component. Additionally, when described as being formed or placed "upper or lower" of each component, "upper" or "lower" includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or placed between the two components. Moreover, when expressed as "upper or lower," it may include the meaning of a downward direction as well as an upward direction relative to a single component. The lighting device according to the invention can be applied to various lamp devices requiring lighting, such as vehicle lamps, household lighting devices, and industrial lighting devices. For example, when applied to vehicle lamps, it can be applied to headlamps, side mirrors, side marker lights, fog lights, tail lamps, brake lights, daytime running lights, vehicle interior lighting, door scuffs, rear combination lamps, backup lamps, etc. The lighting device of the present invention can also be applied to i