CN206209255U - A kind of backlight light bar - Google Patents
A kind of backlight light bar Download PDFInfo
- Publication number
- CN206209255U CN206209255U CN201621332785.3U CN201621332785U CN206209255U CN 206209255 U CN206209255 U CN 206209255U CN 201621332785 U CN201621332785 U CN 201621332785U CN 206209255 U CN206209255 U CN 206209255U
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- screen
- silk
- light bar
- lens
- backlight light
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Abstract
The utility model is related to a kind of backlight light bar, including：The counterbore of pcb board, lens outline silk-screen, black silk-screen, LED pads and fixed lens locating dowel；Lens outline silk-screen is arranged on pcb board；Black silk-screen is arranged in lens outline silk-screen；LED pads are arranged on center in lens outline silk-screen；The counterbore of fixed lens locating dowel is arranged in lens outline silk-screen, for location and installation lens.The utility model insulate silk-screen by increasing in the range of the lens outline silk-screen of pcb board black and solves direct-light-type backlight subjective taste and luminance uniformity not preferable problem as expected.
Description
Technical field
The utility model belongs to field of semiconductor illumination, more particularly to a kind of backlight light bar.
Background technology
Backlight as the display screens such as TV, mobile phone important composition part, for the visualization of liquid crystal display is provided must not
The condition that can lack.The backlight of liquid crystal display mainly has two ways：Side entering type and straight-down negative.Side-edge type backlight includes leaded light
Plate, lighting source, diffuser plate, blast piece and diffusion sheet, wherein, light source is placed on the side of light guide plate, from the side of light guide plate
Guide light into light guide plate, realize the illumination of liquid crystal display.Straight-down negative is then the lower section that light source is directly placed at liquid crystal display, is saved
Light guide plate is removed, but has needed that the spot light of straight-down negative is extended into area source with secondary optical lens, liquid crystal display could have been realized
Homogenization illumination.Direct-light-type backlight lamp bar includes pcb board, LED lamp bead, optical lens, connector and the TVS (poles of transient state two
Pipe).The paster such as LED lamp bead, optical lens, connector and TVS is on pcb board.The reflecting rate of the insulating barrier on pcb board surface
The secondary optics distribution of optical lens is influenced whether, so as to influence the brightness uniformity of display screen.Except component described above patch
Outside dress and PCB surface, PCB surface is also including the pad of LED both positive and negative polarities, the calibration point for calibrating patch location, connector
Buckle hole position, lens outline silk-screen, the both positive and negative polarity test point of both positive and negative polarity pad, fixed PCB.
Secondary optical lens are the principal elements for influenceing direct-light-type backlight subjective taste and luminance uniformity, but secondary light
The effect for learning lens is influenceed by many factors, such as free-curved-surface-type, mould and die accuracy, the light transmittance of optical material and refraction
Rate and lens injection moulding condition etc., ultimately result in subjective taste and luminance uniformity not preferable as expected.
Utility model content
The purpose of this utility model is to provide a kind of backlight light bar, by the lens outline silk-screen model in pcb board
Interior increase black insulation silk-screen is enclosed to solve direct-light-type backlight subjective taste and luminance uniformity not preferable problem as expected.
A kind of backlight light bar of the present utility model, including：
Pcb board；
Lens outline silk-screen, is arranged on the pcb board；
Black silk-screen, is arranged in the lens outline silk-screen；
LED pads, are arranged on center in the lens outline silk-screen.
The counterbore of fixed lens locating dowel, is arranged in the lens outline silk-screen.
Preferably, the black silk-screen is a circle, Liang Quan, three circles or multi-turn.
Preferably, the first lap black silk-screen includes six black silk-screens, a diameter of 1.8mm of each；Second circle is black
Color silk-screen includes 12 black silk-screens, and diameter is respectively 1.8mm and two kinds of 1.2mm, is alternately arranged；3rd circle black silk-screen is included
12 black silk-screens, a diameter of 2.0mm of each.
Preferably, the black silk-screen is distributed in the lens outline silk-screen in a jumble with predetermined number.
Preferably, the backlight light bar also includes：Both positive and negative polarity test point and calibration point, are arranged on the pcb board, institute
State lens outline silk-screen peripheral accessory.
Preferably, the backlight light bar also includes：Connector pad, is arranged on the pcb board center.
Preferably, the backlight light bar also includes：The buckle hole position of fixed PCB, is arranged on the pcb board away from institute
State lens outline silk-screen end.
The utility model has the advantage of：
1st, the subjective taste of backlight is improved；
2nd, the design difficulty and difficulty of processing of secondary optical lens are reduced；
3rd, the production yield of optical lens, reduces cost are improve；
4th, the uniformity of backlight is improved.
Brief description of the drawings
The structural representation of Fig. 1 the utility model embodiment one；
The structural representation of Fig. 2 the utility model embodiment two；
The structural representation of Fig. 3 the utility model embodiment three.
Specific embodiment
As shown in figure 1, a kind of backlight light bar of the present utility model includes：Pcb board 1, lens outline silk-screen 25, black
The counterbore 45 of silk-screen 5, LED pads 10 and fixed lens locating dowel；Lens outline silk-screen 25 is arranged on pcb board 1；Black silk
Print 5 is arranged in lens outline silk-screen 25；LED pads 10 are arranged on center in lens outline silk-screen 25；Fixed lens
The counterbore 20 of locating dowel is arranged in lens outline silk-screen 25, for location and installation lens.
Embodiment one, as shown in figure 1, black silk-screen 5 is three circles.First lap black silk-screen 55 includes six black silk-screens,
The a diameter of 1.8mm of each；Second circle black silk-screen 60 includes 12 black silk-screens, and diameter is respectively 1.8mm and 1.2mm two
Kind, it is alternately arranged；3rd circle black silk-screen 50 includes 12 black silk-screens, a diameter of 2.0mm of each.
Embodiment two, as shown in Fig. 2 black silk-screen 5 is a circle, black silk-screen is for 10 and diameter is identical.
Embodiment three, as shown in figure 3, black silk-screen 5 is two circles, first lap includes 12 black silk-screens, and diameter is respectively
Two kinds of size, is alternately arranged；Second circle is comprising black silk-screen is for 12 and diameter is identical.
Black silk-screen 5 can be distributed for any number of turns, it is also possible to be distributed in lens outline silk-screen in a jumble with predetermined number
It is interior.
As shown in figure 1, backlight light bar can include：Both positive and negative polarity test point 30 and calibration point 35, are arranged on pcb board 1,
The peripheral accessory of lens outline silk-screen 25.Backlight light bar also includes：Connector pad 40 is arranged on the center of pcb board 1.Backlight
Lamp bar also includes：The buckle hole position 45 of fixed PCB is arranged on pcb board away from lens outline silk-screen end.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (7)
1. a kind of backlight light bar, it is characterised in that including：
Pcb board；
Lens outline silk-screen, is arranged on the pcb board；
Black silk-screen, is arranged in the lens outline silk-screen；
LED pads, are arranged on center in the lens outline silk-screen；
The counterbore of fixed lens locating dowel, is arranged in the lens outline silk-screen.
2. backlight light bar according to claim 1, it is characterised in that the black silk-screen be a circle, Liang Quan, three enclose or
Multi-turn.
3. backlight light bar according to claim 2, it is characterised in that the first lap black silk-screen includes six black
Silk-screen, a diameter of 1.8mm of each；Second circle black silk-screen includes 12 black silk-screens, and diameter is respectively 1.8mm and 1.2mm
Two kinds, it is alternately arranged；3rd circle black silk-screen includes 12 black silk-screens, a diameter of 2.0mm of each.
4. backlight light bar according to claim 1, it is characterised in that the black silk-screen is distributed in a jumble with predetermined number
In the lens outline silk-screen.
5. the backlight light bar according to claim 1,2 or 4, it is characterised in that the backlight light bar also includes：It is positive and negative
Pole test point and calibration point, are arranged on the pcb board, the lens outline silk-screen peripheral accessory.
6. the backlight light bar according to claim 1,2 or 4, it is characterised in that the backlight light bar also includes：Connection
Device pad, is arranged on the pcb board center.
7. the backlight light bar according to claim 1,2 or 4, it is characterised in that the backlight light bar also includes：It is fixed
The buckle hole position of PCB, is arranged on the pcb board away from the lens outline silk-screen end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621332785.3U CN206209255U (en) | 2016-12-07 | 2016-12-07 | A kind of backlight light bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621332785.3U CN206209255U (en) | 2016-12-07 | 2016-12-07 | A kind of backlight light bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206209255U true CN206209255U (en) | 2017-05-31 |
Family
ID=58751415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621332785.3U Active CN206209255U (en) | 2016-12-07 | 2016-12-07 | A kind of backlight light bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206209255U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112835229A (en) * | 2021-03-26 | 2021-05-25 | 江西兆驰光元科技股份有限公司 | LED backlight lamp strip and straight following formula TV board that is shaded |
-
2016
- 2016-12-07 CN CN201621332785.3U patent/CN206209255U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112835229A (en) * | 2021-03-26 | 2021-05-25 | 江西兆驰光元科技股份有限公司 | LED backlight lamp strip and straight following formula TV board that is shaded |
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| GR01 | Patent grant |