TWI407044B - Illuminate component and back light module - Google Patents

Abstract

The present invention discloses an illuminate component, which comprises a framed lighting area and at least two lighting component. All the lighting components are located around the framed lighting area. The lighting component comprises a lighting device and a optical device, and the optical device is built upon the lighting device. The lighting device comprises at least one LED or at least one CCFL. Wherein the aforementioned framed lighting area contains a geometrical center, and at least one optical-adjusted structure is mounted around peripheral of the optical device; furthermore, the optical-adjusted structure faces toward the aforementioned geometrical center. The present invention further discloses a back light module which comprises a plurality of optical film-plates, an illuminate component and a frame set. The illuminate component is located under the optical film-plate, and the frame set is used to accommodate the optical film-plates and the illuminate component.

Description

Backlight module and light source assembly thereof

The present invention relates to a light source assembly, and more particularly to a light source assembly having a monolithic structure, and/or the foregoing light source assembly can be adapted for use in a backlight module.

At present, whether it is a light-emitting diode (LED) or a cold cathode tube (CCFL) in life or industrial applications, the brightness of the light can meet the needs of the market. However, the luminescent region generated by a light-emitting diode (LED) or a cold cathode tube (CCFL) always has a problem that some specific portions have excessive luminescence.

In view of this, the inventors of the present invention have proposed an effective solution to solve the problems of the prior art.

In accordance with the purpose of the present invention, a light source assembly is provided that includes a frame region and at least two illumination devices. Both illuminators are located on the periphery of the frame type area. The illuminating device comprises a illuminating element and an optical element, the optical element being disposed on the illuminating element. The illuminating element comprises at least one light emitting diode (LED) or at least one cold cathode tube (CCFL).

Wherein the frame-shaped region has a geometric center, and the optical component is provided with at least one monolithic structure at its periphery, and the monolithic structure faces the geometric center. The light-receiving structure may be a groove, a nick, a microparticle or a reflection sheet, etc., so as to achieve the geometric center of the entire frame-shaped region, and there is no problem of excessive luminescence, in other words, the entire frame-type region can be illuminated. More uniform.

According to the purpose of the present invention, a backlight module is further provided, which comprises a plurality of optical films, a light source assembly and a frame group. The light source component is disposed under the optical film, and the frame group is used for accommodating a plurality of optical films and light source components.

As described above, the light source assembly and the backlight module according to the present invention may have one or more of the following advantages:

(1) The light source assembly and the backlight module can avoid the problem of excessive light emission in the entire light-emitting area.

(2) The light source component and the backlight module make the amount of illumination of the entire light-emitting area more uniform.

Please refer to FIG. 1A and FIG. 1B. FIG. 1A is a schematic plan view of a light source assembly according to an embodiment of the present invention, and FIG. 1B is a side view of the light source assembly along the A-A direction of FIG. 1A. The light source assembly 10 of the present invention comprises a frame type region 100 and two light emitting devices 200. The two light emitting devices 200 are located on two corresponding peripheral edges of the frame type region 100. The light emitting device 200 includes a light emitting element 210 and an optical element 220, wherein the optical element 220 is disposed above the light emitting element 210. Further, the light emitting element 210 includes at least one light emitting diode (LED) or at least one cold cathode tube (CCFL). In the present embodiment, the light-emitting element 210 comprises a cold cathode tube (CCFL).

Wherein, the above-mentioned frame-shaped region 100 defines a geometric center 101, and the optical element 220 is provided with at least one light-receiving structure 221 at its periphery, and the light-fixing structure 221 faces the geometric center 101, wherein the position of the light-reinforcing structure 221 Having an elevation angle θ with respect to a central position of the light-emitting element 210, In this embodiment, the elevation angle is about 45 degrees, but not limited thereto. When the size of the frame type is different, the optical components are different, and the light source settings are different, the elevation angle θ of the light-converging structure is different. In the light-receiving structure of the present invention, the elevation angle θ may be between about 0 and 90 degrees.

Moreover, the monolithic structure 221 may be a groove, a score, a microparticle or a reflective sheet, etc., thereby avoiding the problem of excessive illumination of the geometric center 101 of the entire frame-shaped region 100. In other words, the entire frame area 100 can be made more uniform in illumination. Wherein, the monolithic structure 221 is not limited to the above-mentioned manner, and the structure or substance having a turning, absorbing, and attenuating light can make the illuminating in the frame-shaped region uniform, and both are the illuminating structure of the present invention. The scope.

In addition, please refer to FIG. 1C, which is a top plan view of a light source assembly according to another embodiment of the present invention. Figure 1C depicts a plurality of light source assemblies 10 as shown in Figure 1A and are regularly arranged to meet various industrial needs, such as for use in backlight modules.

In particular, the light source assembly of any of the embodiments of the present invention can be applied not only to a backlight module but also to other devices, devices or applications for light homogenization, but not limited thereto.

Moreover, the frame type region of the present invention is not limited to a square, a rectangle, a triangle, a quadrangle, a pentagon, a hexagon, a heptagon, an octagon, etc., and may also be a circular, elliptical... Such as the regular shape, it can be an irregular shape of the polygon, ring ... and so on.

Please refer to FIG. 2A and FIG. 2B . FIG. 2A is a schematic plan view of a light source assembly according to another embodiment of the present invention, and FIG. 2B is a B-B side along the second FIG. A side view of the light source assembly. As shown in FIG. 2A, the light source assembly 30 includes a frame type region 300 and two light emitting devices 400. Two light emitting devices 400 are located on two corresponding peripheral edges of the frame type region 300. The light emitting device 400 includes a light emitting element 410 and an optical element 420, wherein the optical element 420 is disposed above the light emitting element 410. Further, the light emitting element 410 includes at least one light emitting diode (LED) or at least one cold cathode tube (CCFL). In the present embodiment, the light-emitting element 410 includes a light-emitting diode (LED).

The frame type region 300 defines a geometric center 301, the optical element 420 is provided with at least one light-constructing structure 421 at its periphery, and the light-shaping structure 421 faces the geometric center 301, wherein the position of the light-convex structure 421 With respect to the center position of the light-emitting element 410, there is an elevation angle θ. In the present embodiment, the elevation angle is about 45 degrees, but not limited thereto. When the frame-shaped area is different in size, the optical elements are different, and the light source settings are different, The elevation angle θ at which the monolithic structure is affected may be different. In the dimming structure of the present invention, the elevation angle θ may be between about 0 and 90 degrees.

Moreover, the monolithic structure 421 can be a groove, a score, a microparticle or a reflective sheet, thereby avoiding the problem of excessive illumination of the geometric center 301 of the entire frame region 300. In other words, the entire frame area 300 can be made more uniform in illumination. Wherein, the monolithic structure is not limited to the above-mentioned manner, and the structure or substance having a turning, absorbing, and attenuating light can make the illuminating in the frame-shaped region uniform, and both are the illuminating structure of the present invention. category.

In addition, please refer to FIG. 2C, which is a top plan view of an embodiment of a light source assembly according to another embodiment of the present invention. Figure 2C shows a plurality of pictures The light source assembly 30 as shown in FIG. 2A is regularly arranged to meet different industrial requirements, such as: for a backlight module, in particular, it can be regarded as a light-emitting diode light bar (LED light bar) for side-light type. In the backlight module, in addition, it can also be used in a direct type backlight module.

Please refer to FIG. 3A, which is a top plan view of a light source assembly according to another embodiment of the present invention. As shown in FIG. 3A, the light source assembly 50 includes a frame type region 500 and four light emitting devices 600, and four light emitting devices 600 are located on the periphery of the frame type region 500. The four light-emitting devices 600 are arranged in a quadrangular shape, and the four light-emitting devices 600 are located at the ends of the quadrilateral. In addition, the light source assembly of the present invention may further comprise five, six, seven, eight or more than eight light-emitting devices, and the light-emitting devices may form a triangle, a quadrangle, a pentagon, a hexagon, and a seventh. A polygon above the shape of a polygon, an octagon or an octagon, and the illumination devices are located at the ends of the polygon.

The light-emitting device 600 described above includes a light-emitting element 610 and an optical element 620. The optical element 620 is disposed on the light emitting element 610. The light emitting element 610 includes at least one light emitting diode (LED) or at least one cold cathode tube (CCFL). In the present embodiment, the light-emitting element 610 includes a light-emitting diode (LED).

Wherein, the frame type region 500 defines a geometric center 501, the optical element 620 is provided with at least one illuminating structure 621 at its periphery, and the illuminating structure 621 faces the geometric center 501, wherein the position of the illuminating structure 621 The center position 501 of the light-emitting element 610 has an elevation angle. In this embodiment, the elevation angle is about 45 degrees, but not limited thereto. When the size of the frame type is different, the optical components are different, and the light source settings are different. The elevation angle at which the monolithic structure is affected may be different. In the dimming structure of the present invention, the elevation angle may be between about 0 and 90 degrees.

Moreover, the monolithic structure 621 can be a groove, a score, a microparticle or a reflective sheet, etc., thereby avoiding the problem of excessive illumination of the geometric center 501 of the entire frame-shaped region 500. In other words, the entire frame area 500 can be made more uniform in illumination. Wherein, the monolithic structure is not limited to the above-mentioned manner, and the structure or substance having a turning, absorbing, and attenuating light can make the illuminating in the frame-shaped region uniform, and both are the illuminating structure of the present invention. category.

In addition, please refer to FIG. 3B, which is a top plan view of a light source assembly according to another embodiment of the present invention. FIG. 3B illustrates a plurality of light source assemblies 50 as shown in FIG. 3A and are regularly arranged to meet various industrial requirements, such as: for use in backlight modules, particularly in direct-lit backlight modules.

Please refer to FIG. 4, which is a side view of a portion of the backlight module of the present invention. As shown in FIG. 4, the backlight module 1000 includes a plurality of optical films 800, a plurality of light source assemblies 700, and a frame group 900. The light source assembly 700 is disposed under the optical film 800, and the frame group 900 is configured to accommodate the plurality of optical films 800 and the plurality of light source assemblies 700. In addition, the light source assembly 700 may be the aforementioned light source assembly, such as the light source assembly shown in FIG. 3A.

In particular, the nephelescent structure of the optical element of the present invention faces the geometric center, wherein "facing" means that the monolithic structure of the optical element is adjacent to the geometric center to solve the problem of excessively bright geometric center. In addition, The light-receiving structure is not limited to being disposed at the periphery of the optical element, and may be disposed at the opening of the optical element (not shown, that is, the optical element is used to set the light-emitting element), and may also be disposed through the thunder. In the shooting process, the monolithic structure is disposed in the optical element (not shown, that is, such as between the periphery and the inner ring surface).

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

10, 30, 50‧‧‧Light source components

100‧‧‧Framed area

101‧‧‧Geometry Center

200‧‧‧Lighting device

210‧‧‧Lighting elements

220‧‧‧Optical components

221‧‧‧Solid structure

300‧‧‧Frame area

301‧‧‧Geometry Center

400‧‧‧Lighting device

410‧‧‧Lighting elements

420‧‧‧Optical components

421‧‧‧Solid structure

500‧‧‧Framed area

501‧‧‧Geometry Center

600‧‧‧Lighting device

610‧‧‧Lighting elements

620‧‧‧Optical components

621‧‧‧Solid structure

700‧‧‧Light source components

800‧‧‧Optical diaphragm

900‧‧‧Framework

1000‧‧‧Backlight module

Θ‧‧‧ elevation angle

1A is a schematic plan view of a light source assembly according to an embodiment of the present invention; FIG. 1B is a side view of the light source assembly along the AA direction of FIG. 1A; FIG. 1C is a light source according to another embodiment of the present invention; 2A is a schematic plan view of a light source assembly according to another embodiment of the present invention; FIG. 2B is a side view of the light source assembly along the BB direction of FIG. 2A; FIG. 2C is a schematic view of the present invention FIG. 3A is a top plan view of a light source assembly according to another embodiment of the present invention; and FIG. 3B is a top plan view of a light source assembly according to another embodiment of the present invention; And Figure 4 is a side view of a portion of the backlight module of the present invention.

50‧‧‧Light source components

500‧‧‧Framed area

501‧‧‧Geometry Center

600‧‧‧Lighting device

610‧‧‧Lighting elements

620‧‧‧Optical components

621‧‧‧Solid structure

Claims (17)

A light source assembly comprising: at least one frame type region; and at least two light emitting devices, wherein the light emitting devices are located at a periphery of the frame type region, the light emitting devices comprising a light emitting element and an optical element, wherein the optical element is disposed on In the illuminating element, wherein the frame region defines a geometric center, the optical element is provided with at least one omnidirectional structure, and the illuminating structure faces the geometric center. The light source assembly of claim 1, wherein the light emitting devices are arranged in a polygonal shape, and the light emitting devices are located at end points of the polygon. The light source assembly of claim 2, wherein the polygon is a triangle, a quadrangle, a pentagon, a hexagon, a heptagon or an octagon. The light source assembly of claim 1, wherein the monolithic structure is disposed at a periphery of the optical element. The light source assembly of claim 1, wherein the position of the illuminating structure has an elevation angle with respect to a center position of the illuminating element, and the elevation angle is between 0 and 90 degrees. The light source assembly of claim 5, wherein the elevation angle is about 45 degrees. The light source assembly of claim 1, wherein the monolithic structure is a groove, a score, a microparticle or a reflective sheet. The light source assembly of claim 1, wherein the light emitting element comprises at least one light emitting diode (LED) or at least one cold cathode tube (CCFL). The light source assembly of claim 1, wherein the light source assembly is used in a backlight module. A backlight module comprising: at least a plurality of optical films; a light source assembly disposed under the plurality of optical films, the light source assembly comprising: a frame type region; and at least two light emitting devices, the light emitting devices The light-emitting device includes a light-emitting component and an optical component disposed on the light-emitting component, and a frame group for accommodating the plurality of optical films and the light source. An assembly, wherein the frame region defines a geometric center, the optical element is provided with at least one monolithic structure, and the monolithic structure faces the geometric center. The backlight module of claim 10, wherein the light emitting devices are arranged in a polygonal shape, and the light emitting devices are located at end points of the polygon. The backlight module of claim 11, wherein the polygon is a triangle, a quadrangle, a pentagon, a hexagon, a heptagon or an octagon. The backlight module of claim 10, wherein the monolithic structure is disposed at a periphery of the optical element. The backlight module of claim 10, wherein the position of the illuminating structure has an elevation angle with respect to a center position of the illuminating element, and the elevation angle is between 0 and 90 degrees. The backlight module of claim 14, wherein the elevation angle is about 45 degrees. The backlight module of claim 10, wherein the light-receiving structure A groove, a score, a particle or a reflection sheet. The backlight module of claim 10, wherein the light emitting element comprises at least one light emitting diode (LED) or at least one cold cathode tube (CCFL).