TWM473477U - Lighting device - Google Patents

Abstract

A lighting device comprises a membrane element with the first circuit, a light-guide element with the second circuit, an isolation layer fixed between the membrane element and the light-guide element, and at least an illuminant electrified to the first circuit, which by the side of the light-guide element and the isolation as to project into the light-guide element for conducting.

Description

Illuminating device

The present invention relates to an improved structure of a light-emitting device that is more simplified in structure and used as a backlight.

The application of the backlight module is very common. For electronic devices such as notebook computers, monitors, mobile phones, LCD TVs, etc., which do not emit light by themselves, a backlight module is required to provide a light source.

A general backlight module includes a light guiding component and a light source. For an electronic product having a thin body thickness, an LED is generally used as a light source, and the light source is disposed on a side of the light guiding component (generally called a side). The light source), the first side of the light guiding element is provided with a reflective sheet, and the opposite second side is used as a light emitting surface, and a plurality of optical films composed of a diffusion sheet and a cymbal sheet may be disposed as needed, and then The perimeter of these components is surrounded by a frame. The light emitted by the light source is projected from the side of the light guiding element, and part of the light is reflected by the reflecting sheet, and then sequentially passed through the diffusing sheet of the light emitting surface and the cymbal.

The conventional light-emitting device shown in the first figure is a backlight module applied to a touch-sensitive electronic product, and the structure thereof comprises an upper film A, a lower film B, an insulating layer C, a light guiding element D and at least one The light source E; the symmetry plane of the upper film A and the lower film B are respectively provided with a first circuit A1 and a second circuit B1, and the insulating layer C is disposed between the upper film A and the lower film B to separate the first circuit A1 and the second Circuit B1; insulation layer C in the corresponding A plurality of conductive contacts of a circuit and a second circuit are respectively provided with a through hole C1, whereby when the position of the upper film A corresponding to the conductive contact is pressed, the upper conductive contact A2 of the upper film is passed through the lower layer and the lower film. The conductive contact B2 is in electrical contact. The light guiding element D is disposed under the lower film B, and the light source E is disposed on the side of the light guiding element D. The light transmitted from the light source E into the light guiding element is transmitted through the lower film B, the insulating layer C and the upper film A. Such a light-emitting device can be applied to a keyboard such as a notebook computer, a mobile phone, various types of instrument panels, a clock, a watch, a digital photo frame, and the like as a backlight.

The main purpose of the present invention is to improve the structure of the conventional light-emitting device, thereby simplifying the structure, shortening the assembly process of the light-emitting device, reducing the manufacturing cost, and further reducing the total thickness of the light-emitting device to enable the electronic product. The design is more compact and refined.

The feature of the present invention is that the lower film of the conventional light-emitting device is omitted, and the circuit originally provided on the lower film is directly disposed on the light guiding element, and the light guiding element is further combined with the insulating layer provided on the film element, thereby simplifying the light emission. Assembly process, structure and volume of the device.

Another feature of the present invention is that the light source is skillfully disposed in the light-emitting device to avoid exposing the side contour of the light-guiding element, but can project light from the side into the light-guiding element to further reduce the volume of the light-emitting device. .

The technical means of the present invention is that a first circuit is disposed on one side of a thin film component, and a second circuit is disposed on a side of a light guiding component. The thin film component and the light guiding component are symmetrically disposed on one side of the circuit, and An insulating layer is disposed between the two circuits, and the insulating layer corresponds to the position of the conductive contact provided by the first circuit and the conductive contact of the second circuit Then, a through hole is provided. When the position of the film element corresponding to the conductive contact is pressed, the conductive contact of the first circuit is electrically contacted with the conductive contact of the second circuit through the through hole.

The first and second holes of the insulating layer and the light guiding element are respectively disposed on the insulating layer and the light guiding element, and the light source is disposed in the first hole and the second hole. Inside the hole.

Another technical means for providing a light source to the light-emitting device can set the lengths of the insulating layer and the light guiding element to be smaller than the length of the thin film element, thereby generating a space of difference in length, and then setting the light source to the length difference. Within the space.

According to still another technical means for providing a light source to the light-emitting device, the length of the insulating layer or the light guiding element can be set to be smaller than the length of the thin film element, thereby generating a space of difference in length, and then setting the light source to the length difference. Within the space.

The thin film element, the insulating layer and the light guiding element disclosed in the present invention are all flexible, thereby forming a flexible light-emitting device.

1‧‧‧Film components

11‧‧‧First circuit

111‧‧‧First conductive contact

12‧‧‧ Space

2‧‧‧Light guiding elements

21‧‧‧Second circuit

211‧‧‧Second conductive contacts

22‧‧‧Second hole

3‧‧‧Insulation

31‧‧‧ first hole

32‧‧‧Perforation

33‧‧‧through hole

4‧‧‧Light source

The first figure is a schematic plan view showing the structure of a conventional light-emitting device.

The second figure is a schematic plan view showing the structure of the first embodiment of the present illuminating device.

The third figure is a schematic plan view showing the structure of the second embodiment of the present illuminating device.

The fourth figure is a plan view showing the structure of the third embodiment of the present illuminating device.

Figure 5 is a plan view showing the structure of the fourth embodiment of the present illuminating device intention.

Fig. 6 is a plan view showing the structure of a fifth embodiment of the present illuminating device.

Figure 7 is a plan view showing the structure of a sixth embodiment of the present illuminating device.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

The second figure shows an embodiment of the present illuminating device, comprising a film element 1, a light guiding element 2, an insulating layer 3 and at least one light source 4; the film element 1 can be made of polyethylene terephthalate ( The polythylene terephthalate (PET) material is made of a flexible flexible film, and a required first circuit 11 is disposed on one side thereof, and at least one first conductive contact 111 is disposed on the first circuit 11. The light guiding element 2 is made of a material having good light guiding properties and is made into a flexible sheet, and the second circuit 21 is directly disposed on the light guiding element 2, and at least one second is disposed on the second circuit 21. Conductive contact 211. The insulating layer 3 is disposed between the thin film element 1 and the light guiding element 2 as an element for isolating the electrical connection, so that the first circuit 11 of the thin film element 1 and the second circuit 21 of the light guiding element 2 are in a symmetrical position, and the first conductive The contact point 111 and the second conductive contact 211 correspond to each other; the insulating layer 3 corresponding to the position of the first conductive contact 111 and the second conductive contact 211 is provided with a through hole 32 when the first conductive contact of the film element 1 is pressed In the position of 111, the first conductive contact 111 can be electrically contacted with the second conductive contact 211 through the through hole 32; the insulating layer 3 can be made of a light transmissive material. The preferred embodiment of the light source 4 in this creation is small in size and A light-saving light-emitting diode (LED) is disposed on the side of the light-guiding element 2 and the insulating layer 3, and can project light into the light-guiding element 2 for conduction, and can even be projected into the insulating layer 3 for conduction. Further, light is passed through the light-permeable insulating layer 3 and the thin film element 1 to produce a light-emitting effect.

The second figure shows an embodiment in which the light source 4 is embedded in the light-emitting device. The arrangement is such that at least one first hole 31 is disposed in the insulating layer 3, and the light guiding element 2 is disposed corresponding to the first hole 31. The second hole 22, the light source 4 is directly soldered to the first circuit 11 of the thin film element 1. When the thin film element 1, the insulating layer 3 and the light guiding element 2 are combined, the light source 4 is accommodated in the first hole 31 and the first hole In the two holes 22, the light emitted by the light source 4 can be projected into the light guiding element 2 from the side of the first hole 31 and the second hole 22. The second hole 22 may be a blind hole as shown in the second figure, or may be a consistent hole (as shown in the third figure).

The fourth figure shows another embodiment in which the light source is disposed on the light-emitting device, and the lengths of the insulating layer 3 and the light-guiding element 2 of the stacked structure are set to be smaller than the length of the thin film element 1, so that the insulating layer 3 and the guide are The light element 2 is separated from the film element 1 by a space 12 formed by the difference in length; the light source 4 is directly soldered to the first circuit 11 of the film element 1, and the light source 4 is placed in the space 12, and the light emitted by the light source 4 can be from the space. The side of 12 is projected into the light guiding element 2.

The fifth figure is another embodiment in which the lengths of the insulating layer 3 and the light guiding element 2 of the present invention are both smaller than the length of the thin film element 1, wherein the length of the light guiding element 2 is smaller than the length of the insulating layer 3, so that the insulating layer 3 and the space 12 of the light guiding element 2 with respect to the film element 1 due to the difference in length; the light source 4 is directly soldered to the first circuit 11 of the film element 1, so that the light source 4 is located in the space 12, and the light emitted by the light source 4 can be Projected from the side of space 12 It is incorporated into the light guiding element 2.

The sixth figure shows another embodiment in which the light source is disposed on the light-emitting device, and the length of the insulating layer 3 of the stacked structure is set to be smaller than the length of the film member 1, so that the length of the insulating layer 3 relative to the film member 1 is different. A space 12 is formed; the light source 4 is directly soldered to the first circuit 11 of the thin film element 1 and the light source 4 is placed in the space 12, and the light emitted by the light source 4 can be projected from the side of the space 12 into the light guiding element 2 and insulated. Inside layer 3.

The seventh figure shows another embodiment in which the light source is disposed on the light-emitting device, and the length of the light-guiding element 2 of the stacked assembly is set to be smaller than the length of the thin-film element 1, so that the length of the light-guiding element relative to the thin film element 1 The difference forms a space 12, and the insulating layer 3 is provided with a through hole 33 at a position corresponding to the space 12; the light source 4 is directly soldered to the first circuit 11 of the thin film element 1, and the light source 4 is passed through the through hole 33 to be located in the space 12. The light emitted by the light source 4 can be projected into the light guiding element 2 from the side of the space 12.

The above description is only for the purpose of explaining the preferred embodiment of the present invention, and is not intended to impose any form of limitation on the creation, so that any modifications or changes made in the same spirit are still It should be included in the scope of this creative intent.

1‧‧‧Film components

11‧‧‧First circuit

111‧‧‧First conductive contact

2‧‧‧Light guiding elements

21‧‧‧Second circuit

211‧‧‧Second conductive contacts

22‧‧‧Second hole

3‧‧‧Insulation

31‧‧‧ first hole

32‧‧‧Perforation

4‧‧‧Light source

Claims (12)

A light-emitting device comprising: a film element provided with a first circuit; a light guiding element disposed with a second circuit; an insulating layer disposed between the film element and the light guiding element; at least one light source, electricity The first circuit is connected, and the light of the light source is projected into the light guiding element. The light-emitting device according to claim 1, wherein the light of the light source is projected into the light guiding element and the insulating layer from a side of the light guiding element and the insulating layer. The light-emitting device of claim 1 or 2, wherein the insulating layer and the light guiding element are respectively provided with corresponding first holes and second holes, and the light source is disposed in the first hole With the second hole inside. The illuminating device of claim 3, wherein the second hole is a consistent perforation. The illuminating device of claim 3, wherein the second hole is a blind hole. The light-emitting device according to claim 1, wherein the length of the insulating layer is smaller than the length of the thin film element, and the light source is disposed in a space between the insulating layer and the length of the thin film element. The illuminating device of claim 1, wherein the length of the light guiding element is smaller than the length of the film element, and the light source is disposed on the light guiding element The space of the film element is inferior in length. The light-emitting device of claim 1, wherein the length of the insulating layer and the light guiding element are both smaller than the length of the thin film element, and the light source is disposed on a length difference between the insulating layer and the thin film element, and The light guiding element is in a space that is different from the length of the thin film element. The illuminating device of claim 1, wherein the first circuit and the second circuit are disposed at symmetrical positions. The illuminating device of claim 9, wherein the first circuit and the second circuit are respectively provided with at least one first circuit conductive contact and a second circuit conductive contact, the insulating layer pair The position of the first circuit conductive contact and the second circuit conductive contact should be provided with a through hole. The illuminating device of claim 1, wherein the film element is a flexible film element. The light-emitting device of claim 1, wherein the light guiding element is a flexible light guiding element.