CN202091931U - SMD (surface mounted device) type LED bottom backlight - Google Patents

SMD (surface mounted device) type LED bottom backlight Download PDF

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Publication number
CN202091931U
CN202091931U CN2011201910044U CN201120191004U CN202091931U CN 202091931 U CN202091931 U CN 202091931U CN 2011201910044 U CN2011201910044 U CN 2011201910044U CN 201120191004 U CN201120191004 U CN 201120191004U CN 202091931 U CN202091931 U CN 202091931U
Authority
CN
China
Prior art keywords
backlight
type led
plastic cement
smd
cement frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011201910044U
Other languages
Chinese (zh)
Inventor
严建华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aijian Shenzhen Electronics Co ltd
Original Assignee
Aijian Shenzhen Electronics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aijian Shenzhen Electronics Co ltd filed Critical Aijian Shenzhen Electronics Co ltd
Priority to CN2011201910044U priority Critical patent/CN202091931U/en
Application granted granted Critical
Publication of CN202091931U publication Critical patent/CN202091931U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a SMD (surface mounted device) type LED bottom backlight, which comprises LEDs, a reflective board, a plastic frame and a diffusion film. The reflective board is disposed at the bottom of the plastic frame, the diffusion film is disposed at the top of the plastic frame, and the LEDs are mounted on the upper surface of the reflective board. The SMD type LED bottom backlight is low in production cost, simple in structure and capable of meeting the requirement of luminous keys of home appliances on low-illumination evenness.

Description

Backlight at the bottom of a kind of SMD type LED
[technical field]
The utility model relates to backlight at the bottom of a kind of SMD type LED, belongs to the electric lighting field.
[background technology]
LED side backlight is luminous because of the back that the extra long life of LED is widely used in the household electrical appliance luminous button.The side backlight refers to the side that LED is installed in light source, rely on LGP and back side reflector to make light outside uniformly light-emitting in a plane, become the area source of each position uniformly light-emitting, for various luminous buttons provide desirable backlight.
But in the luminous button application process of actual domestic appliance, often much lower than the uniformity in display backlight source to the uniform plane requirement of light source, therefore there is no need to adopt the design of side backlight fully, simultaneously, use the cost height of side backlight, complex structure.
Therefore, for solving the problems of the technologies described above, backlight at the bottom of the necessary SMD type LED that a kind of novelty is provided is to overcome described defective of the prior art.
[utility model content]
For addressing the above problem, it is a kind of simple in structure that the purpose of this utility model is to provide, backlight at the bottom of the low SMD type LED of use cost.
For achieving the above object, the technical scheme that the utility model is taked is: backlight at the bottom of a kind of SMD type LED, and it comprises LED lamp pearl, reflector, plastic cement frame and light-diffusing film; Wherein, described reflector is arranged on the plastic cement frame bottom, and described light-diffusing film is arranged on the plastic cement arch; Described LED lamp pearl is installed on the upper surface of reflector.
Backlight further is set at the bottom of the SMD type LED of the present utility model: the cross section of described plastic cement frame is trapezium structure; Both sides in the plastic cement frame are provided with stage portion, and this stage portion surface forms a reflective surface.
Compared with prior art, the utlity model has following beneficial effect: the production cost of backlight is low, simple in structure at the bottom of the SMD type LED of the present utility model, satisfies the requirement of household electrical appliance luminous button low light according to the uniformity.
[description of drawings]
Fig. 1 is the profile of backlight at the bottom of the SMD type LED of the present utility model.
[specific embodiment]
See also shown in the Figure of description 1, the utility model is a backlight at the bottom of a kind of SMD type LED, and it comprises LED lamp pearl 1, reflector 2, plastic cement frame 3 and light-diffusing film 4.
Wherein, described reflector 2 is arranged on plastic cement frame 3 bottoms, and described light-diffusing film 4 is arranged on plastic cement frame 3 tops.
Described LED lamp pearl 1 is installed on the upper surface of reflector 2, and light-diffusing film 4 distance L ED lamp pearls 1 have certain distance, makes that light passes through to have certain space to carry out scattering after the hemispheric LED lamp pearl 1 even emission.
The cross section of described plastic cement frame 3 is trapezium structure.Both sides in plastic cement frame 3 are provided with stage portion 31, these stage portion 31 surfaces form a reflective surface 32 by electroplating, demoulding when this shape had both helped 3 injection mouldings of plastic cement frame, also help light and form repeatedly reflection, and then make that backlight is luminous evenly at the bottom of this SMD type LED, satisfy of the requirement of household electrical appliance luminous button low light according to the uniformity.
The above specific embodiment only is the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within made any modification, be equal to replacement, improvement etc., all should be included within the protection domain of this creation.

Claims (2)

1. backlight at the bottom of the SMD type LED is characterized in that: comprise LED lamp pearl, reflector, plastic cement frame and light-diffusing film; Wherein, described reflector is arranged on the plastic cement frame bottom, and described light-diffusing film is arranged on the plastic cement arch; Described LED lamp pearl is installed on the upper surface of reflector.
2. backlight at the bottom of the SMD type LED as claimed in claim 1, it is characterized in that: the cross section of described plastic cement frame is trapezium structure; Both sides in the plastic cement frame are provided with stage portion, and this stage portion surface forms a reflective surface.
CN2011201910044U 2011-06-09 2011-06-09 SMD (surface mounted device) type LED bottom backlight Expired - Fee Related CN202091931U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201910044U CN202091931U (en) 2011-06-09 2011-06-09 SMD (surface mounted device) type LED bottom backlight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201910044U CN202091931U (en) 2011-06-09 2011-06-09 SMD (surface mounted device) type LED bottom backlight

Publications (1)

Publication Number Publication Date
CN202091931U true CN202091931U (en) 2011-12-28

Family

ID=45366998

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201910044U Expired - Fee Related CN202091931U (en) 2011-06-09 2011-06-09 SMD (surface mounted device) type LED bottom backlight

Country Status (1)

Country Link
CN (1) CN202091931U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135364A (en) * 2015-09-06 2015-12-09 得实光电实业(江门)有限公司 Novel optical element used for SMD lamp beads
WO2018036396A1 (en) * 2016-08-24 2018-03-01 欧普照明股份有限公司 Reflector and light source module

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135364A (en) * 2015-09-06 2015-12-09 得实光电实业(江门)有限公司 Novel optical element used for SMD lamp beads
WO2018036396A1 (en) * 2016-08-24 2018-03-01 欧普照明股份有限公司 Reflector and light source module
US20190178469A1 (en) * 2016-08-24 2019-06-13 Opple Lighting Co., Ltd. Reflector and light source module
US10859238B2 (en) 2016-08-24 2020-12-08 Opple Lighting Co., Ltd. Reflector and light source module

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111228

Termination date: 20140609