CN202074338U - Backlight device - Google Patents
Backlight device Download PDFInfo
- Publication number
- CN202074338U CN202074338U CN2011201059466U CN201120105946U CN202074338U CN 202074338 U CN202074338 U CN 202074338U CN 2011201059466 U CN2011201059466 U CN 2011201059466U CN 201120105946 U CN201120105946 U CN 201120105946U CN 202074338 U CN202074338 U CN 202074338U
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- Prior art keywords
- backlight
- lighting device
- cavity
- loophole
- back lighting
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- Expired - Lifetime
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Abstract
The utility model relates to a backlight device, which comprises a backlight PCB (Printed Circuit Board), a backlight bracket, a film and at least one LED (Light-Emitting Diode), wherein the backlight bracket comprises at least one cavity body and an isolator for isolating the cavity body; the backlight PCB is fixedly arranged between the backlight bracket and the film and comprises a first surface and a second surface which is opposite to the first surface, transparent holes are also arranged on the backlight PCB, the transparent holes penetrate through the first surface and the second surface, the LED is arranged on the first surface, the first surface of the backlight PCB is fixedly connected with the backlight bracket, and the transparent holes, the LED and the cavity body of the backlight bracket are correspondingly arranged; and light-shielding areas and transparent areas are arranged on the film, the film is fixedly connected with the second surface of the backlight PCB, and the transparent areas are arranged corresponding to the positions of the transparent holes. The backlight bracket of the backlight device is designed into a lamp-box type structure, the inner part of the backlight bracket is provided with a reflecting layer, and the transparent areas with characters or patterns are arranged on the light-shielding areas of the film, so that clear, bright and gorgeous backlight effects can be realized while the cost is lowered.
Description
Technical field
The utility model relates to a kind of back lighting device.
Background technology
Existing induction type touch switch generally adopts in the touch area or the next door increases back lighting device, shows some patterns, as functional literal, icon, code name or symbol pattern etc., uses in the relatively poor environment of light with Convenient switch.
Implementation backlight in the market has two kinds: a kind of is that point-like is backlight, and cost is lower, but can only indicating positions, can't deixis.Another kind of mode is to adopt backlight, but deixis, but cost is higher.
The utility model is at lower cost a kind of, and it is clear to realize, and is bright, dazzles the back lighting device of beautiful effect backlight.
The utility model content
Main purpose of the present utility model provides a kind of back lighting device, and it is clear to realize when being intended to reduce cost, and is bright, gorgeous effect backlight.
A kind of back lighting device that the utility model provides, by PCB backlight, support backlight, film and at least one LED form,
Described support backlight comprises at least one cavity, and the slider that described cavity is isolated;
Described PCB backlight is fixedly installed between described support backlight and the described film, comprise first surface and with described first surface opposing second surface, also be provided with loophole on the described PCB backlight, described loophole runs through described first surface and second surface, described first surface is provided with at least one LED, the first surface of described PCB backlight is fixedlyed connected with described support backlight, the corresponding setting of cavity of described loophole and LED and described support backlight;
Described film is provided with shading region and transparent area, and described film is with after the second surface of described PCB backlight is fixedlyed connected, described transparent area and the corresponding setting in described loophole position.
Preferably, described cavity inner wall surface is provided with first reflecting layer; The first surface of described PCB backlight is provided with second reflecting layer.
Preferably, the inwall of described cavity is smooth plane.
Preferably, the bottom surface of described cavity is all or part of to be smooth curved surface, makes that light is easier to be penetrated from described loophole after reflection.
Preferably, the bottom surface of described cavity is all or part of to be smooth inclined-plane, makes that light is easier to be penetrated from described loophole after reflection.
Preferably, described cavity is provided with the diffusion site in being, makes that light is easier to be penetrated from described loophole after reflection.
Preferably, laterally and/or vertically be provided with the diffusion microflute in the described cavity, make that light is easier to be penetrated after reflection from described loophole.
Preferably, described back lighting device also comprises light guiding lens, and described light guiding lens is arranged in the described cavity, makes that light is easier to be penetrated from described loophole after reflection.
Preferably, described transparent area is the indicative or ornamental character or the pattern of hollow out or silk-screen.
The support backlight of the utility model back lighting device is designed to the special lamp box type structure in cross section according to optical principle, inside is provided with the reflecting layer, the shading region of film is provided with the transparent area that has character or pattern, it is clear to adopt this structure to realize when reducing cost, bright, gorgeous effect backlight.
Description of drawings
Fig. 1 is an explosive view of the present utility model;
Fig. 2 is the cross-sectional view of the utility model embodiment one;
Fig. 3 is the cross-sectional view of the utility model embodiment two;
Fig. 4 is the cross-sectional view of the utility model embodiment three;
Fig. 5 is the cross-sectional view of the utility model embodiment four;
Fig. 6 is the cross-sectional view of the utility model embodiment five;
Fig. 7 is the cross-sectional view of the utility model embodiment six.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
The specific embodiment
Be described further with regard to the technical solution of the utility model below in conjunction with drawings and the specific embodiments.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
With reference to Fig. 1 and Fig. 2, show the back lighting device structure of the utility model first embodiment, this back lighting device is by PCB2 backlight, support backlight 1, and film 3 and at least one LED2011 form.
PCB2 backlight comprise the first surface (not shown) and with first surface opposing second surface 203, above-mentioned PCB2 backlight is provided with loophole 202, loophole 202 runs through first surface and second surface 203, the first surface of PCB2 backlight is provided with at least one LED2011, after fixedlying connected with support 1 backlight, the first surface of PCB2 backlight forms at least one cavity 102, above-mentioned loophole 202 and LED2011 are placed in this cavity 102 with cavity 102 corresponding settings and LED2011, the length of above-mentioned PCB2 backlight and support backlight 1 are adaptive, and PCB2 backlight can adopt glue bond with support 1 backlight or fixedly connected by modes such as screws.
Above-mentioned cavity 102 inner wall surface are provided with first reflecting layer 103, and the first surface of PCB2 backlight is provided with second reflecting layer 201.
Above-mentioned support backlight 1 also comprises the slider 101 that cavity 102 is isolated, and this slider 101 does not disturb the light between the cavity 102 mutually, and the back lighting device of each cavity 102 can work independently.
Be interval with shading region 301 and transparent area 302 on the above-mentioned film 3, wherein, transparent area 302 and cavity 102 and loophole 202 corresponding settings, this transparent area 302 is the character or the pattern of hollow out or silk-screen, the effect that can play indication or decorate.The length of film 3 and PCB2 backlight are adaptive, and film 3 can adopt glue bond with the second surface 203 of PCB2 backlight or fixedly connected by modes such as screws.
With reference to Fig. 1 and Fig. 2, show the cross-section structure of the back lighting device of the utility model first embodiment, after fixedlying connected with PCB2 backlight, above-mentioned support backlight 1 forms the space of a regular geometric shapes, six faces in this space are smooth plane, because loophole 202 parts of this space on PCB2 backlight, remainder is all surrounded by first reflecting layer 103 and second reflecting layer 201, therefore when above-mentioned LED2011 works, all light that send all penetrate from loophole 202 behind at least one secondary reflection, make that the light that penetrates is more even, it is more that light penetrates, almost not loss, the brightness of transparent area 302 is higher, and shown character or pattern are also more clear, bright, thus the effect of playing indication or decorating.
With reference to Fig. 3, show the cross-section structure of the back lighting device of the utility model second embodiment, the bottom surface of above-mentioned cavity 102 is smooth curved surface, when above-mentioned LED2011 is worked, the light that is sent is easier after reflection to penetrate the brightness that has further improved transparent area 302 from loophole 202.
With reference to Fig. 4, show the cross-section structure of the back lighting device of the utility model the 3rd embodiment, the bottom surface of above-mentioned cavity 102 is smooth inclined-plane, when above-mentioned LED2011 is worked, the light that is sent is easier after reflection to penetrate the brightness that has further improved transparent area 302 from loophole 202.
With reference to Fig. 5, show the cross-section structure of the back lighting device of the utility model the 4th embodiment, the inwall of above-mentioned cavity 102 is provided with diffusion site 1021, when above-mentioned LED2011 is worked, the light that is sent is being mapped to the easier ejaculation from loophole 202 after reflection in diffusion site 1021, the brightness that has further improved transparent area 302.
With reference to Fig. 6, show the cross-section structure of the back lighting device of the utility model the 5th embodiment, the inwall of above-mentioned cavity 102 laterally and/or vertically is provided with diffusion microflute 1022, when above-mentioned LED2011 is worked, the light that is sent is being mapped to the easier ejaculation from loophole 202 after reflection of diffusion microflute 1022, the brightness that has further improved transparent area 302.
With reference to Fig. 7, show the cross-section structure of the back lighting device of the utility model the 6th embodiment, the utility model also comprises light guiding lens 4, this light guiding lens 4 and above-mentioned cavity 102 are adaptive and be placed in the middle of the cavity 102, and light guiding lens 4 can better allow light propagate therein, has reduced the loss of light, when above-mentioned LED2011 works, the light that is sent is propagated in light guiding lens 4, penetrates the brightness that has further improved transparent area 302 after reflection from loophole 202.
The support backlight 1 of a kind of back lighting device of the utility model is designed to the special lamp box type structure in cross section according to optical principle, inside is provided with reflecting layer (first reflecting layer 103 and second reflecting layer 201), film 3 shading regions are provided with the transparent area 302 that has character or pattern, it is clear to adopt this structure to realize when reducing cost, bright, gorgeous effect backlight.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (9)
1. back lighting device, by PCB backlight, support backlight, film and at least one LED form, it is characterized in that,
Described support backlight comprises at least one cavity, and the slider that described cavity is isolated;
Described PCB backlight is fixedly installed between described support backlight and the described film, comprise first surface and with described first surface opposing second surface, also be provided with loophole on the described PCB backlight, described loophole runs through described first surface and second surface, described first surface is provided with at least one LED, the first surface of described PCB backlight is fixedlyed connected with described support backlight, the corresponding setting of cavity of described loophole and LED and described support backlight;
Described film is provided with shading region and transparent area, and described film is with after the second surface of described PCB backlight is fixedlyed connected, described transparent area and the corresponding setting in described loophole position.
2. back lighting device according to claim 1 is characterized in that, described cavity inner wall surface is provided with first reflecting layer; The first surface of described PCB backlight is provided with second reflecting layer.
3. back lighting device according to claim 2 is characterized in that, the inwall of described cavity is smooth plane.
4. back lighting device according to claim 2 is characterized in that, the bottom surface of described cavity is all or part of to be smooth curved surface, makes that light is easier to be penetrated from described loophole after reflection.
5. back lighting device according to claim 2 is characterized in that, the bottom surface of described cavity is all or part of to be smooth inclined-plane, makes that light is easier to be penetrated from described loophole after reflection.
6. back lighting device according to claim 2 is characterized in that, described cavity is provided with the diffusion site in being, makes that light is easier to be penetrated from described loophole after reflection.
7. back lighting device according to claim 2 is characterized in that, laterally and/or vertically is provided with the diffusion microflute in the described cavity, makes that light is easier to be penetrated from described loophole after reflection.
8. back lighting device according to claim 2 is characterized in that described back lighting device also comprises light guiding lens, and described light guiding lens is arranged in the described cavity, makes that light is easier to be penetrated from described loophole after reflection.
9. according to the described back lighting device of arbitrary claim in the claim 2 to 8, it is characterized in that described transparent area is the indicative or ornamental character or the pattern of hollow out or silk-screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201059466U CN202074338U (en) | 2011-04-12 | 2011-04-12 | Backlight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201059466U CN202074338U (en) | 2011-04-12 | 2011-04-12 | Backlight device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202074338U true CN202074338U (en) | 2011-12-14 |
Family
ID=45112440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201059466U Expired - Lifetime CN202074338U (en) | 2011-04-12 | 2011-04-12 | Backlight device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202074338U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404775A (en) * | 2018-05-31 | 2019-03-01 | 杭州蜂群智能科技有限公司 | Reflective backing structure for touch control device |
| CN111189291A (en) * | 2018-11-14 | 2020-05-22 | 青岛海尔股份有限公司 | Drawer of refrigerator and refrigerator |
| CN111189290A (en) * | 2018-11-14 | 2020-05-22 | 青岛海尔股份有限公司 | Drawer of refrigerator and refrigerator |
| CN111664646A (en) * | 2019-03-08 | 2020-09-15 | 青岛海尔电冰箱有限公司 | Front panel assembly of drawer of refrigerator, drawer and refrigerator |
-
2011
- 2011-04-12 CN CN2011201059466U patent/CN202074338U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404775A (en) * | 2018-05-31 | 2019-03-01 | 杭州蜂群智能科技有限公司 | Reflective backing structure for touch control device |
| CN111189291A (en) * | 2018-11-14 | 2020-05-22 | 青岛海尔股份有限公司 | Drawer of refrigerator and refrigerator |
| CN111189290A (en) * | 2018-11-14 | 2020-05-22 | 青岛海尔股份有限公司 | Drawer of refrigerator and refrigerator |
| CN111189290B (en) * | 2018-11-14 | 2021-11-26 | 海尔智家股份有限公司 | Drawer of refrigerator and refrigerator |
| CN111664646A (en) * | 2019-03-08 | 2020-09-15 | 青岛海尔电冰箱有限公司 | Front panel assembly of drawer of refrigerator, drawer and refrigerator |
| CN111664646B (en) * | 2019-03-08 | 2022-02-22 | 青岛海尔电冰箱有限公司 | Front panel assembly of drawer of refrigerator, drawer and refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |