KR-20260063603-A - LIGHT MODULE FOR EMITTING PATTERNED LIGHT

KR20260063603AKR 20260063603 AKR20260063603 AKR 20260063603AKR-20260063603-A

Abstract

The present invention relates to a lighting module that outputs patterned light, wherein the lighting module comprises a circuit board, a plurality of light-emitting diodes spaced apart from each other in one direction on the circuit board, a micro-optic film formed with a plurality of light-blocking patterns configured to correspond to one of the plurality of light-emitting diodes and to impart a pattern of a specified shape to the output light of one light-emitting diode, and a photosensitive plate formed to reduce the brightness of the output light with the pattern of the specified shape, which is positioned in front of the micro-optic film according to the light-emitting direction.

Inventors

전순호

Assignees

주식회사 서연이화

Dates

Publication Date: 20260507
Application Date: 20241030

Claims (10)

In a lighting module that outputs patterned light, Circuit board; A plurality of light-emitting diodes arranged spaced apart from each other in one direction on the circuit board above; A micro-optic film having a plurality of light-blocking patterns formed therein, which are arranged in front of the plurality of light-emitting diodes according to the light irradiation direction and are configured to correspond to any one of the plurality of light-emitting diodes and impart a pattern of a specified shape to the output light of the single light-emitting diode; and A photosensitive plate disposed in front of the micro-optic film according to the light irradiation direction and formed to reduce the brightness of the output light having a pattern of the specified shape; A lighting module including
In paragraph 1, The housing is further configured to accommodate the circuit board, the plurality of light-emitting diodes, and the micro-optic film in an internal space and is open forward according to the direction of light irradiation. A lighting module characterized by the above photosensitive plate being disposed at the open front of the housing and coupled to the housing.
In paragraph 2, the above housing is, A lighting module characterized by the inner surface forming the internal space being painted black, thereby forming the internal space into a dark room.
In claim 1, the micro-optic film is, A lighting module characterized by being a polyethylene terephthalate (PET) resin film formed with a micro-sized fine pattern.
In claim 1, the plurality of light-blocking patterns of the micro-optic film are, A lighting module characterized by being configured such that a pattern of the specified shape is formed independently by the output light of each of the plurality of light-emitting diodes.
In paragraph 1, The plurality of light-emitting diodes above include a first diode and a second diode disposed adjacent to the first diode, and The plurality of light-blocking patterns of the micro-optic film comprises a first light-blocking pattern and a second light-blocking pattern disposed adjacent to the first light-blocking pattern, and The first light-blocking pattern corresponds to the first diode and imparts a pattern of the specified shape to the output light of the first diode, and A lighting module characterized in that the above second light pattern is configured to correspond to the second diode and impart a pattern of the specified shape to the output light of the second diode.
In paragraph 6, the circuit board is, A lighting module characterized by being configured to turn off the second diode while the first diode is lit.
In claim 1, the micro-optic film is, A lighting module characterized by being positioned to be in contact with the photosensitive plate in at least some area.
In claim 1, the micro-optic film is, A lighting module characterized by being bent so as to be inclined in the direction of light irradiation so that the position according to the direction of light irradiation is different in at least some parts.
In claim 9, the micro-optic film is, A lighting module characterized by having different positions according to the light irradiation direction between a first zone of the light-blocking pattern and a second zone spaced apart from the first zone in a direction intersecting the light irradiation direction, so as to form a three-dimensional effect on the pattern of the specified shape.

Description

Light module for emitting patterned light The present invention relates to a lighting module that outputs patterned light, and more specifically, to a lighting module that outputs patterned light by imparting a pattern to the output light of a light-emitting diode through a microoptic film. Lighting applications include not only automotive lighting but also backlights for displays and signage. Light-emitting devices, such as light-emitting diodes (LEDs), offer advantages over conventional light sources like fluorescent and incandescent lamps, including low power consumption, a semi-permanent lifespan, fast response speed, safety, and environmental friendliness. Light-emitting diodes are applied in various lighting devices, such as display systems, interior lights, and exterior lights. Mood lamps are installed in various locations both inside and outside the vehicle, such as the ceiling, door panels, dashboard, and footwells. These mood lamps can provide a sense of luxury and psychological comfort through lighting. Following recent trends, mood lamps go beyond simply providing a single color or constant brightness to feature the ability to create specific patterns. However, conventional mood lamps were manufactured by laser-cutting micro-holes into a black-painted translucent case and applying a clear coating for gloss, and the laser-cut micro-holes were used to impart patterns to the output light. According to such conventional mood lamps, there were problems such as increased manufacturing costs and time, as well as brightness errors in the patterns caused by variations in micro-hole processing. In addition, conventional mood lamps have a problem in that individual control of multiple patterns is impossible because multiple patterns are formed simultaneously using micro-holes with the output light of a single light source, and since thousands of micro-holes are formed, not only the pattern to be controlled but also patterns adjacent to it are partially illuminated. Conventional technology refers to technical information that the inventor possessed for the derivation of the present invention or acquired during the process of deriving the present invention, and it cannot necessarily be considered publicly known technology disclosed to the general public prior to the filing of the present invention. FIG. 1 is a top perspective view of a lighting module according to an embodiment of the present invention. FIG. 2 is a lower perspective view of a lighting module according to an embodiment of the present invention. FIG. 3 is a cross-sectional view in the X-axis direction of a lighting module according to an embodiment of the present invention. FIG. 4 is a cross-sectional view in the Y-axis direction of a lighting module according to an embodiment of the present invention. FIG. 5 is a cross-sectional view in the Z-axis direction of a lighting module according to an embodiment of the present invention. FIG. 6 is an example of output light with a pattern of a specified shape applied according to a micro-optic film according to an embodiment of the present invention. FIG. 7 is an exemplary diagram of output light according to one embodiment of the present invention. FIG. 8 is a detailed view of a micro-optic film according to an embodiment of the present invention. FIG. 9 is a comparison diagram of output light according to whether it passes through a micro-optic film according to an embodiment of the present invention. FIG. 10 is a schematic diagram of an embodiment in which a micro-optic film according to an embodiment of the present invention is folded. In the present invention, the attached drawings may be illustrated with exaggerated expressions to distinguish it from the prior art, ensure clarity, and facilitate the understanding of the technology. Furthermore, the terms described below are defined considering their functions in the present invention; since these terms may vary depending on the intentions or conventions of the user or operator, their definitions should be based on the technical content throughout this specification. Meanwhile, the embodiments are merely exemplary details of the components presented in the claims of the present invention and do not limit the scope of the rights of the present invention; the scope of rights should be interpreted based on the technical concept throughout the specification of the present invention. Throughout the specification, when a configuration is described as "including" a configuration, this means that, unless specifically stated otherwise, it does not exclude other configurations but may include additional configurations. Furthermore, when it is said that one configuration is "connected," "connected," or "combined" with another configuration, this means that it is not only "directly connected," "directly connected," or "directly combined," but also that there may be cases where it is "connected with another configuration interposed," "connected with another