TWI880322B - Screen lighting device - Google Patents

Abstract

A screen lighting device includes a main body, a first light source and a second light source. The main body includes a first shell and a second shell, the second shell is detachably connected to the first shell. The first light source is connected to the main body and is adapted to generate a first light beam. The second light source is connected to the main body and is adapted to generate a second light beam. The first shell is adapted to emit the first light beam along a first direction. The second shell is adapted to emit the second light beam along a second direction. The second direction is different from the first direction.

Description

Screen lighting device

The present invention relates to the field of lighting, and in particular to a lighting device mounted on a screen.

In order to get comfortable lighting when reading, desk lamps are the most common desktop lighting source. However, as computers become more and more popular, in addition to desk lamps, readers need to place computer-related equipment such as monitors, keyboards, mice, etc. on their desks, making the space on the desktop even smaller.

In response to the above situation, there is currently a type of lamp that is mounted on the screen, which saves desktop space by using the screen as a bracket for the lamp. In order to avoid using traditional bulbs to block the screen or change the center of gravity of the screen due to excessive weight, most of these lamps use smaller and lighter light-emitting elements as light sources, which have a higher degree of freedom in design.

This "Prior Art" section is only used to help understand the content of the present invention, so the content disclosed in the "Prior Art" may contain some content that does not constitute the common knowledge of the person with ordinary knowledge in the relevant technical field. In addition, the content disclosed in the "Prior Art" does not represent the content or the problems to be solved by one or more embodiments of the present invention, nor does it mean that it has been known or recognized by the person with ordinary knowledge in the relevant technical field before the application of the present invention.

The present invention provides a screen lighting device that can provide two types of lighting lights irradiated in different directions, and can change the lighting style of one of the lighting lights according to needs.

Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

To achieve one or part or all of the above purposes or other purposes, an embodiment of the present invention provides a screen lighting device, including: a body, a first light source and a second light source. The body includes a first shell and a second shell. The second shell is detachably connected to the first shell. The first light source is connected to the body and is suitable for generating a first light beam. The second light source is connected to the body and is suitable for generating a second light beam. The first shell is suitable for the first light beam to be emitted along a first direction, and the second shell is suitable for the second light beam to be emitted along a second direction, which is different from the first direction.

In one embodiment, the first housing includes a first accommodating cavity, and the first light source is located in the first accommodating cavity, and the second housing has a second accommodating cavity, and the second light source is located in the second accommodating cavity.

In one embodiment, the above-mentioned screen lighting device further includes a bracket portion, and the first shell and the second shell are connected through the bracket portion.

In one embodiment, the first housing further includes an outer housing and a receiving groove, the outer housing forms a first receiving cavity and a receiving groove, and the first receiving cavity and the receiving groove are respectively located on opposite sides of the outer housing, and the second housing is suitable for being received in the receiving groove.

In one embodiment, the first light source and the second light source are arranged in a first housing, the first housing includes a first accommodating cavity and a combination portion, the first light source is located in the first accommodating cavity, and the second light source is arranged outside the first accommodating cavity, the combination portion is outside the first accommodating cavity and is located on one side of the second light source, and is suitable for assembly with the second housing, the second housing includes a light entrance portion, when the second housing is assembled with the combination portion, the light entrance portion faces the second light source, and the second light beam of the second light source is suitable for entering the second housing through the light entrance portion.

In one embodiment, the first housing has an axis that is different from the first direction and the second direction. The second light source emits a second light beam along the axis. When the first housing and the second housing are assembled, the light incident portion is on the axis.

In one embodiment, the above-mentioned screen lighting device further includes a light guide plate, the light guide plate has a light entrance surface and a light exit surface, the second housing has a second accommodating cavity, the light entrance portion is located at one side of the second accommodating cavity, the light guide plate is fixed in the second accommodating cavity with the light entrance surface facing the light entrance portion and the light exit surface facing the second direction.

In one embodiment, the above-mentioned body further includes a light-transmitting plate, and the second light beam is emitted through the light-transmitting plate along the second direction.

In one embodiment, the light-transmitting plate has multiple light-transmitting holes.

In one embodiment, the above-mentioned screen lighting device further includes a pattern generating element, wherein the pattern generating element is connected to the second housing and disposed on the transmission path of the second light beam, and the pattern generating element is suitable for converting the second light beam from an illumination light beam into a pattern light beam.

From the above description, it can be seen that in addition to providing a first light beam toward a first direction through the first housing, the present invention also generates a second light beam toward a second direction through a second housing that can be detachably assembled from the first housing. Therefore, the screen lighting device of the present invention can provide two types of lighting lights toward different directions, and the lighting style of the second light beam can be changed according to needs.

In order to make the above and other purposes, features and advantages of the present invention more clearly understood, the following is a detailed description of the embodiments with the help of the attached drawings.

1, 1’, 1”: Screen lighting device

2.2’: Body

21, 21’, 21”: First shell

21A: First outer shell

211: Translucent board

212: Storage tank

212a: Bottom

212b: Socket

S1: First accommodating chamber

212c: First opening

213: Circuit board

2131:Connector

214:Reflector

215, 215’: diffusion plate

216:Button

217: Assembly Department

22, 22’, 22”: Second shell

22A: Second outer shell

201: Tank

201: Light Entrance

S2: Second accommodating chamber

221: Support plate

221a: Second opening

221b: Connection part

222: Cover plate

222’, 222”: light-transmitting board

222a: light-entering surface

222b: light-emitting surface

222c: light-transmitting hole

223: Light guide plate

223a: Light-entering surface

223b: light-emitting surface

3: First light source

4, 4’: Second light source

41: Opening

5: Pattern generation components

6: Bracket part

61: Latch

62: Hole

7: Reflective layer

L1: First beam

L2: Second beam

L3: Pattern beam

D1: First direction

D2: Second direction

E1, E2: Long axis direction

A:Axis

FIG1 is a schematic diagram of a screen lighting device of an embodiment of the present invention; FIG2A is a front view of the screen lighting device after the first shell and the second shell are combined in the embodiment of FIG1; FIG2B is a cross-sectional schematic diagram of the screen lighting device after the combination in the embodiment of FIG2A; FIG3A is a schematic diagram of a screen lighting device of another embodiment of the present invention; FIG3B is a cross-sectional schematic diagram of a screen lighting device of an embodiment whose second shell has a structure similar to that of the embodiment of FIG3A; FIG4 is a cross-sectional schematic diagram of the installation of the second shell in another embodiment of the present invention; FIG5 is a cross-sectional schematic diagram of the screen lighting device after the first shell and the second shell are combined in another embodiment of the present invention.

The other technical contents, features and effects of the present invention mentioned above will be clearly presented in the detailed description of the preferred embodiment with reference to the following drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and are not used to limit the present invention.

FIG1 is a schematic diagram of a screen lighting device of an embodiment of the present invention. FIG2A is a front view of the screen lighting device after the first housing and the second housing are assembled in the embodiment of FIG1. FIG2B is a cross-sectional view of the assembled screen lighting device in the embodiment of FIG2A.

As shown in Figures 1 to 2B, the screen lighting device 1 of the embodiment of the present invention includes: a body 2, a first light source 3 and a second light source 4. The body 2 includes a first shell 21 (see Figure 2A) and a second shell 22 (see Figure 2A). The second shell 22 is detachably connected to the first shell 21. The first light source 3 (see Figure 2B) is connected to the body 2 and is suitable for generating a first light beam L1. The second light source 4 is connected to the body 2 and is suitable for generating a second light beam L2. The first shell 21 is suitable for the first light beam L1 to be emitted along a first direction D1, and the second shell 22 is suitable for the second light beam L2 to be emitted along a second direction D2, and the second direction D2 is different from the first direction D1.

Specifically, as shown in FIG. 1 , the body 2 is, for example, in a strip shape. When installed, the body 2 is installed on the upper edge of a screen (not shown) through a bracket (not shown), and the long axis direction E1 of the body 2 is, for example, parallel to the upper edge of the screen. The body 2 can, for example, rotate relative to the bracket with the long axis direction E1 of the body 2 as the axis, so that the first direction D1 and the second direction D2 defined by the first shell 21 and the second shell 22 rotate relative to the screen.

As shown in FIG. 2A and FIG. 2B , in this embodiment, the first housing 21 includes, for example, a first outer housing 21A, a receiving groove 212, and a first receiving chamber S1. Specifically, in this embodiment, the first outer housing 21A forms a first receiving chamber S1 and two receiving grooves 212, and the first receiving chamber S1 and these receiving grooves 212 are respectively located on opposite sides of the first outer housing 21A, and the receiving grooves 212 are respectively arranged along the long axis direction E2 of the first outer housing 21A. The first outer housing 21A, for example, has a first opening 212c, which opens toward the first direction D1 and connects to the first receiving chamber S1. The receiving groove 212 is, for example, a rectangular groove body that is concave toward the first receiving chamber S1 along the second direction D2 of the first outer housing 21A, and has a bottom surface 212a. The receiving groove 212 is used to receive the second housing 22 when the first housing 21 and the second housing 22 are assembled, and is connected to the second housing 22 through a socket 212b provided on the bottom surface 212a, for example.

The shape of the accommodating groove 212 is not limited to the above examples. In other embodiments not shown in the figure, the accommodating groove 212 formed on the first outer shell 21A can be, for example, composed of an opening connected to the first accommodating cavity S1, and the second shell 22 can be configured as a shell for being clamped around the accommodating groove 212 (opening). In other words, the relative position of the first accommodating cavity S1 and the accommodating groove 212 can be changed, and the shape of the accommodating groove 212 is not limited to the above examples.

As shown in FIG. 2A and FIG. 2B , in this embodiment, the body 2 further includes a light-transmitting plate 211. The shape of the light-transmitting plate 211 corresponds to the opening shape of the receiving groove 212, and is used to cover the receiving groove 212 and face the second direction D2 after the second housing 22 is disposed in the receiving groove 212.

The first light source 3 is located in the first accommodation cavity S1. The first light source 3 is, for example, a light bar, and the light bar has, for example, a plurality of light-emitting diodes (LEDs). These light-emitting diodes are, for example, arranged in the first accommodation cavity S1 along the long axis direction E1 of the main body 2. The first light beam L1 generated by these light-emitting diodes is, for example, used as illumination light, and its color is, for example, white, but the color and type of the first light source 3 are not limited to this.

As shown in FIG. 2A and FIG. 2B , the screen lighting device 1 in this embodiment may further include a circuit board 213 (see FIG. 2B ), a reflector 214 and a diffusion plate 215. The circuit board 213 is located in the first accommodation cavity S1 , and obtains external power through a connector 2131 passing through the center of the first housing 21 , and cooperates with a button 216 and a turntable (not shown, electrically connected to the circuit board 213 ) installed on the first housing 21 to control the operation of the first light source 3 , such as but not limited to controlling the light intensity or color temperature. The reflector 214 is located in the first accommodation cavity S1 and in front of the light path of the first light source 3. The diffusion plate 215 is, for example, provided to cover the entire first opening 212c. However, the specific types or shape designs of the components related to the first housing 21 are not limited to the above examples.

As shown in FIG. 2A and FIG. 2B , in this embodiment, the body 2 has two second shells 22 , for example. Each second shell 22 has a second accommodating cavity S2 (see FIG. 2B ). Since the detailed structures of the two second shells 22 are the same, only the design of one of the second shells 22 will be described below. Specifically, the second shell 22 includes, for example, a support plate 221 and a cover plate 222 . The support plate 221 is, for example, a U-shaped plate extending along the long axis direction E1 of the body 2 and having a second opening 221a opened toward the second direction D2. The cover plate 222 covers the second opening 221a and forms the second shell 22 together with the support plate 221 .

In this embodiment, the second light source 4 is located in the second accommodating cavity S2, and the second light beam L2 is emitted toward the second opening 221a through the cover plate 222. The second light source 4 is, for example, a light-emitting module that can change the color of the second light beam L2, and for example has a plurality of light-emitting diodes (not shown) for generating light beams of different colors. These light-emitting diodes include, for example, red, blue and green light-emitting diodes, and can generate a plurality of second light beams L2 of different colors by mixing colors with different light intensities. In other words, in this embodiment, the color of the second light beam L2 generated by the second light source 4 can be changed according to a control circuit not shown in the figure, but the detailed types and functions of the second light source 4 are not limited to the above.

In terms of electrical connection, the support plate 221 includes a connection portion 221b on one side away from the second accommodation cavity S2. One end of the connection portion 221b is electrically connected to the second light source 4, and the other end protrudes from the surface of the support plate 221, and is used to pass through the socket 212b on the first outer shell 21A and extend into the first shell 21 to be electrically connected to the circuit board 213. With this structure, the user can control the light-emitting mode of the second light source 4 through a button (not shown) or a knob (not shown) provided on the first shell 21, but it is not limited thereto.

In this embodiment, the second light source 4 and the cover plate 222 are arranged along the second direction D2, the cover plate 222 is, for example, a diffusion plate, and the cover plate 222 has a light incident surface 222a and a light emitting surface 222b, the light incident surface 222a faces the second light source 4, and the second light beam L2 passes through the cover plate 222 and emits toward the second opening 221a, but the present invention is not limited thereto. In another embodiment, the cover plate 222 is, for example, a light guide plate, and the second light source 4 emits the second light beam L2 along the long axis direction E1 of the body 2, and in this case, the second light source 4 and the cover plate 222 are arranged along the long axis direction E1 of the body 2. The cover plate 222 has a light incident surface and a light emitting surface (not shown), the light incident surface faces the second light source 4, and the light emitting surface determines the direction of the second direction D2. The specific types or shape designs of the components related to the second housing 22 are not limited to the above examples, as described later. It should be understood that since the number of the second housing 22 and the second light source 4 corresponds to the number of the accommodating grooves 212, in other embodiments not shown in the figure, the screen lighting device 1 may also have only one second housing 22 and one second light source 4.

FIG3A is a schematic diagram of a screen lighting device of another embodiment of the present invention. FIG3B is a schematic diagram of a cross-section of a screen lighting device of an embodiment in which the structure of the second housing is similar to that of the embodiment of FIG3A. In the screen lighting device 1' of this embodiment, the structure of the first housing 21' can be roughly the same as that of the aforementioned embodiment, so only the differences are described here. In addition, since the structures of the two second housings 22' in this embodiment are the same, only the structure of one of the second housings 22' is described below.

As shown in FIG. 3A , in this embodiment, unlike the embodiment of FIG. 2A , the first housing 21 ′ includes two assembly parts 217 in addition to the first accommodation cavity S1, and does not have the aforementioned accommodation groove 212. The two assembly parts 217 are suitable for assembly with the second housing 22. The shape of the assembly part 217 is, for example but not limited to, similar to the accommodation groove 212 in the aforementioned embodiment, and the two assembly parts 217 are, for example, also arranged along the long axis direction E1 of the first housing 21 ′, but the detailed shape of the assembly part 217 is not limited thereto. For example, in FIG. 3B , the assembly part 217 can be an opening (because it is covered by the second housing 22 after assembly, so it is not numbered).

As shown in FIG. 3A , the first housing 21 ′ in the present embodiment has an axis A along the long axis direction, and the extension direction of the axis A is different from the first direction D1 and the second direction D2, for example, parallel to the long axis direction E1 of the main body 2 ′. The second light source 4 ′ is disposed in the first housing 21 ′ and is located outside the first accommodation cavity S1. The number of the second light source 4 ′ can be, for example, one and is disposed between the two assembly parts 217, and has openings 41 facing the assembly parts 217 on both sides, respectively. In other words, the two assembly parts 217 are located outside the first accommodation cavity S1 and are located on one side of the second light source 4 ′ on different sides along the axis A. When actuated, the second light beam L2 generated by the second light source 4 ′ directly or through the opening 41 emits the second light beam L2 toward the two assembly parts 217 along different directions on the axis A, but is not limited thereto. In another embodiment, there may be multiple second light sources, which are disposed in the first housing 21' and outside the first accommodating cavity S1, and are disposed corresponding to the two assembly parts 217, that is, when actuated, the second light beam L2 generated by each second light source 4' is emitted directly or through the opening 41 along the axis A toward the corresponding assembly part 217.

In this embodiment, the second housing 22' includes, for example, a second outer housing 22A, a light-transmitting plate 222' and a light-guiding plate 223. The second outer housing 22A surrounds a slot body 201 similar to the aforementioned receiving slot 212. The light-transmitting plate 222' covers the opening of the slot body 201 and forms a second receiving chamber S2 together with the slot body 201. The second receiving chamber S2, i.e., one side of the slot body 201, has a light-transmitting light-entering portion 202 (see FIG. 3A). The light-entering portion 202 is, for example, a light-transmitting portion on the outer housing 22, or a hole. When assembled, the light-guiding plate 223 is fixed in the second receiving chamber S2, and the light-entering surface 223a of the light-guiding plate 223 faces the light-entering portion 202. When the second housing 22 is assembled to the assembly portion 217, the light input portion 202 faces the second light source 4, and the second light beam L2 of the second light source 4 is suitable for entering the second housing 22 through the light input portion 202.

Through the above structure, when the first housing 21' is assembled with the two second housings 22', the light input portion 202 is located on the axis A. When the second light source 4' generates the second light beam L2, the second light beam L2 is emitted along the axis A toward the light input portion 202 on the second housing 22', and to the light input surface 223a of the light guide plate 223, and then emitted from the light output surface 223b of the light guide plate 223 toward the second direction D2.

In this embodiment, the screen lighting device 1' further includes a pattern generating element 5. The pattern generating element 5 is connected to the second housing 22' and is disposed on the transmission path of the second light beam L2. The pattern generating element 5 is suitable for converting the second light beam L2 into a patterned light beam L3. Specifically, the pattern generating element 5 in this embodiment is, for example, a light shielding pattern disposed on the light-transmitting plate 222'. When the second light beam L2 passes through the light-transmitting plate 222', a portion of the second light beam L2 will be blocked by the pattern generating element 5 to generate a patterned light beam L3 corresponding to the shape of the light-shielding pattern.

In other embodiments not shown in the figures, the pattern generating element 5 may be a filter pattern having a plurality of different colored portions. When the second light beam L2 passes through the light-transmitting plate 222', the portion of the second light beam L2 that passes through the filter pattern will become a pattern beam having different colors. In addition, in one embodiment, the light-transmitting plate 222' itself may also be used as the pattern generating element 5. Specifically, a portion of the light-transmitting plate 222' may be formed with a plurality of lenses, and a pattern is generated by deflecting a portion of the second light beam L2, so that the pattern presents diversity. Furthermore, in other embodiments similar to the embodiment of FIG. 3A, the pattern generating element 5 can also be disposed on the light emitting surface 223b of the light guide plate 223, such as the microstructure on the light guide plate 223, and the distribution of the microstructure can make the emitted light present the desired pattern, or in other embodiments similar to the embodiment of FIG. 2A, the pattern generating element 5 can also be disposed on the light emitting surface 222b of the cover plate 222, such as the microstructure on the cover plate 222. It should be understood that in different embodiments, the arrangement method or form of the pattern generating element 5 is not limited to the above examples.

FIG4 is a schematic cross-sectional view of the second housing installation location in another embodiment of the present invention. In this embodiment, the first housing (not shown) can be the same as the design of the embodiment of FIG3A above, and the detailed design of the second housing 22'' can be changed. The following will only describe the changed part.

As shown in FIG. 4 , in this embodiment, the light emitting surface 223b of the light guide plate 223 is covered with a diffusion plate 215', and the contact surface between the light guide plate 223 and the second housing 22" is provided with a reflective layer 7, for example. The light-transmitting plate 222" has a plurality of light-transmitting holes 222c, for example. In similar embodiments, the light-transmitting holes 222c can be arranged in a pattern and used as a pattern generating element 5, but the present invention is not limited thereto.

From the above examples, it can be seen that the detailed structure of the second shell of each embodiment of the present invention can be changed according to the position of the second light source, and the user can change the detailed structure of the second shell according to the needs of setting or generating pattern light beams.

FIG5 is a cross-sectional schematic diagram of a screen lighting device after the first shell and the second shell are combined in another embodiment of the present invention. Please refer to FIG5 . In this embodiment, the screen lighting device 1″ further includes a bracket portion 6, and the first shell 21″ and the second shell 22″ (for convenience of representation, the detailed structure is not drawn) are connected through the bracket portion 6. As shown in FIG5 , specifically, the bracket portion 6 is, for example, composed of a plurality of latches 61, and the first shell 21″ and the second shell 22″ may be provided with holes 62 corresponding to the latches 61, but this is not limited to this. It is understood that the shape of the bracket portion 6 can be changed according to needs. In some embodiments, the connection position or angle between the bracket portion 6 and the second housing 22" can be changed. In other words, the connection position or direction between the bracket portion 6 and the second housing 22" can be changed, or even the design of the bracket portion 6 can be changed to have a rotation axis (not shown) to change the direction of the second direction D2 that the second housing 22" faces.

From the above description, it can be seen that in addition to providing a first light beam toward a first direction through the first housing, the present invention also generates a second light beam toward a second direction through a second housing that can be detachably assembled from the first housing. Therefore, the screen lighting device of the present invention can provide two types of lighting lights toward different directions, and the lighting style of the second light beam can be changed according to needs.

However, the above is only the preferred embodiment of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. That is, all simple equivalent changes and modifications made according to the scope of the patent application and the content of the invention description are still within the scope of the present invention. In addition, any embodiment or patent application of the present invention does not need to achieve all the purposes, advantages or features disclosed by the present invention. In addition, the abstract and title are only used to assist in searching patent documents, and are not used to limit the scope of rights of the present invention. In addition, the terms "first" and "second" mentioned in this specification or patent application are only used to name the element or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

1: Screen lighting device

2: Body

21: First shell

21A: First outer shell

211: Translucent board

212: Storage tank

212a: Bottom

212b: Socket

212c: First opening

S1: First accommodating chamber

2131:Connector

214:Reflector

215:Diffusion plate

216:Button

22: Second shell

221: Support plate

221a: Second opening

221b: Connection part

222: Cover plate

222b: light-emitting surface

4: Second light source

D1: First direction

D2: Second direction

E1, E2: Long axis direction

Claims (7)

A screen lighting device comprises: A first housing, comprising a first outer housing, the first outer housing forming a first accommodating cavity and a combination part, and the first accommodating cavity and the combination part are respectively located on two opposite sides of the first outer housing and separated by the first outer housing, and the first housing has a long axis direction; A second housing, detachably connected to the combination part of the first housing; A first light source, located in the first accommodating cavity and suitable for generating a first light beam; and A second light source, disposed in the first housing and suitable for generating a second light beam, the second light beam being suitable for entering the second housing along an axis parallel to the long axis direction; The first housing is suitable for allowing the first light beam to be emitted along a first direction, and the second housing is suitable for allowing the second light beam to be emitted along a second direction, and the second direction is different from the first direction. A screen lighting device as described in claim 1, wherein the second light source is arranged outside the first accommodating cavity, the assembly portion is located on one side of the second light source and is suitable for being assembled with the second shell, and the second shell includes a light entrance portion, and when the second shell is assembled with the assembly portion, the light entrance portion faces the second light source, and the second light beam of the second light source is suitable for entering the second shell through the light entrance portion. The screen lighting device as described in claim 2, wherein the first shell has the axis, the axis is different from the first direction and the second direction, the second light source emits the second light beam along the axis, and when the first shell and the second shell are assembled, the light incident part is on the axis. The screen lighting device as described in claim 2 further includes a light guide plate, which has a light entrance surface and a light exit surface. The second shell has a second accommodating cavity, the light entrance portion is located on one side of the second accommodating cavity, the light guide plate is fixed in the second accommodating cavity with the light entrance surface facing the light entrance portion, and the light exit surface facing the second direction. The screen lighting device as described in claim 1 further includes a light-transmitting plate, and the second light beam is emitted through the light-transmitting plate along the second direction. The screen lighting device as described in claim 5, wherein the light-transmitting plate has a plurality of light-transmitting holes. The screen lighting device as described in claim 1 further includes a pattern generating element, wherein the pattern generating element is connected to the second housing and disposed on the transmission path of the second light beam, and the pattern generating element is suitable for converting the second light beam into a patterned light beam.

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