CN204387981U - The down straight aphototropism mode set of a kind of PCB and application thereof - Google Patents
The down straight aphototropism mode set of a kind of PCB and application thereof Download PDFInfo
- Publication number
- CN204387981U CN204387981U CN201420833201.5U CN201420833201U CN204387981U CN 204387981 U CN204387981 U CN 204387981U CN 201420833201 U CN201420833201 U CN 201420833201U CN 204387981 U CN204387981 U CN 204387981U
- Authority
- CN
- China
- Prior art keywords
- pcb
- led
- site
- mode set
- optical lens
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses the down straight aphototropism mode set of a kind of PCB and application thereof, relate to backlight technology field.Described PCB is provided with multiple site, arranges layer by layer in described site centered by LED, and is limited within the scope of lens silk-screen.Described down straight aphototropism mode set comprises lamp bar, and lamp bar is made up of lens, LED and above-mentioned PCB.The utility model has the following advantages compared to existing technology: can be according to actual needs, adopt different sites and arrangement mode, effectively can improve the optics taste of down straight aphototropism mode set, weaken lamp shadow phenomenon, reduce costs, its scheme is simple, with low cost simultaneously, can not only effectively solve lamp shadow problem, improve illuminance uniformity, also greatly reduce the cost of backlight module.
Description
Technical field
The utility model relates to the backlight technology field of liquid crystal display, and what be specifically related to is the down straight aphototropism mode set of a kind of PCB and application thereof, improves optics taste, improves the display effect of backlight module.
Background technology
Along with the appearance of energy-conserving and environment-protective policy, LED liquid crystal television progressively replaces traditional CRT TV, occupies increasing market.Little by little reduce with module light mixing distance, cause the light that is irradiated on liquid crystal panel uneven, thus occur lamp shadow phenomenon, the problem of lamp shadow has become the resistance of backlight module ultrathin process, tradition separates lamp shadow scheme two kinds, and the first increases the quantity of diaphragm, but cost can increase; It two is at the black circle of the upper figure of PCB, though the method can slacken the lamp shadow of part, but the absorptance of black circle to light is more, and cause LED light to be absorbed, the top of lens there will be blackening, in addition more difficult accurate location, the position of black circle, and light spot shape also can be caused abnormal.
The light bar structure of the backlight module of traditional blacking circle as shown in Figure 1, black circle 15 on PCB12 and the center superposition of LED 11, the width of black circle 15 is greater than 1mm ~ 2mm usually, its action principle is: absorb for black circle 15 pairs of light, weaken the light near LED 11, relative raising to the reflex of light, thus makes the light on diffuser plate more even away from LED 11 place.But black circle 15 absorbs in a large number for light near LED 11, weaken lamp shadow effect though play, also seriously cause the center of lens 13 partially dark, form blackening, have a strong impact on display effect.
Utility model content
The purpose of this utility model is to solve in existing down straight aphototropism mode set and uses tradition and blacking circle PCB and cause lamp shadow, show uneven technical problem.
In order to solve the problem, the utility model provides a kind of PCB, this PCB is used in down straight aphototropism mode set, this PCB is arranged secondary optical lens silk-screen, secondary optical lens silk-screen is the position that PCB contacts with secondary optical lens mounted thereto, in the middle of secondary optical lens silk-screen, LED welding plate is set, setting is characterized in that, the solder mask upper surface of PCB has multiple site, site arranges layer by layer centered by LED pad, and the distribution of site is limited in the silk-screen of secondary optical lens on PCB.
As further improvement of these options, the shape of the distribution of site is circular, square or rhombus.
As further improvement of these options, the diameter of site is between 0.5-2mm.
The utility model additionally provides a kind of down straight aphototropism mode set, backlight module is followed successively by backboard, lamp bar, reflector plate, diffuser plate, prismatic lens and diffusion sheet from the bottom up, lamp bar comprises LED, PCB and secondary optical lens, this PCB is any one PCB above-mentioned, LED is welded on by tin cream on the LED pad on PCB, and secondary optical lens is arranged on above LED.
As further improvement of these options, diameter and the mixed light height of site are inversely proportional to, and mixed light height is the backboard cavity depth of backlight module.
As further improvement of these options, the symmetry axis of secondary optical lens and the symmetry axis of LED overlap,
As further improvement of these options, secondary optical lens is straight-down negative lens or reflective lens.
As further improvement of these options, LED is small-power bonded LED lamp pearl.
The utility model has the following advantages compared to existing technology: the PCB that the utility model provides and down straight aphototropism mode set, can be according to actual needs, adopt different sites and arrangement, effectively can improve the optics taste of down straight aphototropism mode set, weaken lamp shadow phenomenon, its scheme is simple, with low cost.
Accompanying drawing explanation
Fig. 1 is the part-structure schematic diagram of light bar on traditional LED-backlit module.
Fig. 2 is the PCB schematic diagram of traditional LED-backlit module.
Fig. 3 is the structural representation of LED-backlit module of the present utility model.
Fig. 4 is the part-structure schematic diagram one of light bar on backlight module of the present utility model.
Fig. 5 is the part-structure schematic diagram two of light bar on backlight module of the present utility model.
Fig. 6 is PCB schematic diagram one of the present utility model.
Fig. 7 is PCB schematic diagram two of the present utility model.
Fig. 8 is PCB schematic diagram three of the present utility model.
Detailed description of the invention
Below embodiment of the present utility model is elaborated; the present embodiment is implemented under premised on technical solutions of the utility model; give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Embodiment 1
As shown in Figure 6, a kind of PCB, this PCB are used in down straight aphototropism mode set, it is characterized in that, the solder mask upper surface of PCB12 has multiple site 14, and site 14 arranges layer by layer centered by LED pad 17, and the distribution of site 14 to be limited on PCB12 in secondary optical lens silk-screen 16.Site 14, for PCB12 installing the position of secondary optical lens 13, is distributed in secondary optical lens silk-screen 16, the site 14 of all facilities can be made to play useful effect by secondary optical lens silk-screen 16.The shape of the distribution of site 14 is circular, and the diameter of site 14 is 0.5mm.Around the site 14 around LED pad 17, unequal absorption is carried out for light, the light near LED 11 can be weakened, relatively improve away from LED 11 place to the reflex of light, thus make to use the light of the backlight module of this PCB more even.Site 14 has selective for light, can weaken the light near LED, also can ensure the brightness at center simultaneously, improve overall display effect.
Embodiment 2
As shown in Figure 7, a kind of PCB, this PCB are used in down straight aphototropism mode set, it is characterized in that, the solder mask upper surface of PCB12 has multiple site 14, and site 14 arranges layer by layer centered by LED pad 17, and the distribution of site 14 to be limited on PCB12 in secondary optical lens silk-screen 16.Site 14, for PCB12 installing the position of secondary optical lens 13, is distributed in secondary optical lens silk-screen 16, the site 14 of all facilities can be made to play useful effect by secondary optical lens silk-screen 16.The shape of the distribution of site 14 is square, and the diameter of site 14 is 1.5mm.Around the site 14 around LED pad 17, unequal absorption is carried out for light, the light near LED 11 can be weakened, relatively improve away from LED 11 place to the reflex of light, thus make to use the light of the backlight module of this PCB more even.Site 14 has selective for light, can weaken the light near LED, also can ensure the brightness at center simultaneously, improve overall display effect.
Embodiment 3
As shown in Figure 8, a kind of PCB, this PCB are used for, in down straight aphototropism mode set, the solder mask upper surface of PCB12 having multiple site 14, site 14 arranges layer by layer centered by LED pad 17, and the distribution of site 14 to be limited on PCB12 in secondary optical lens silk-screen 16.Site 14, for PCB12 installing the position of secondary optical lens 13, is distributed in secondary optical lens silk-screen 16, the site 14 of all facilities can be made to play useful effect by secondary optical lens silk-screen 16.The shape of the distribution of site 14 is rhombus, and the diameter of site 14 is 2mm.Around the site 14 around LED pad 17, unequal absorption is carried out for light, the light near LED 11 can be weakened, relatively improve away from LED 11 place to the reflex of light, thus make to use the light of the backlight module of this PCB more even.Site 14 has selective for light, can weaken the light near LED, also can ensure the brightness at center simultaneously, improve overall display effect.
Embodiment 4
As shown in Fig. 3, Fig. 4 and Fig. 7, a kind of down straight aphototropism mode set, backlight module is followed successively by backboard 2, lamp bar 1, reflector plate 3, diffuser plate 4, prismatic lens 5 and diffusion sheet 6 from the bottom up, lamp bar 1 comprises LED 11 and PCB12, the solder mask upper surface of PCB12 has multiple site 14, site 14 arranges layer by layer centered by LED pad 17, and the shape of the distribution of site 14 is square, and the distribution of site 14 to be limited on PCB12 in secondary optical lens silk-screen 16.Site 14, for PCB12 installing the position of secondary optical lens 13, is distributed in secondary optical lens silk-screen 16, the site 14 of all settings can be made to play useful effect by secondary optical lens silk-screen 16.LED 11 is welded on by tin cream on the LED pad 17 on PCB12, and the secondary optical lens silk-screen 16 of PCB12 also arranges secondary optical lens 13, and secondary optical lens 13 is arranged on above LED 11.The diameter of site 14 is 2mm, and the mixed light height of backlight module is 15mm, and mixed light height is the backboard cavity depth of backlight module.The symmetry axis of secondary optical lens 13 and the symmetry axis of LED 11 overlap, and secondary optical lens 13 is reflective lens, and its lighting angle is greater than 160 °.LED 11 is small-power bonded LED lamp 11 pearl, and the diameter range of its light-emitting area is at 2.1mm, and its package dimension is 3535.Unequal absorption is carried out for light in the site 14 be centered around around LED 11, weakens the light near LED 11, relatively improves away from LED 11 place to the reflex of light, thus makes the light on diffuser plate 4 more even.Meanwhile, these sites 14 have selective for light, can weaken the light near LED, also can ensure the brightness at center simultaneously, improve overall display effect.
Embodiment 5
As shown in Fig. 3, Fig. 4 and Fig. 6, a kind of down straight aphototropism mode set, backlight module is followed successively by backboard 2, lamp bar 1, reflector plate 3, diffuser plate 4, prismatic lens 5 and diffusion sheet 6 from the bottom up, lamp bar 1 comprises LED 11 and PCB12, the solder mask upper surface of PCB12 has multiple site 14, site 14 arranges layer by layer centered by LED pad 17, and the shape of the distribution of site 14 is circular, and the distribution of site 14 to be limited on PCB12 in secondary optical lens silk-screen 16.Site 14, for PCB12 installing the position of secondary optical lens 13, is distributed in secondary optical lens silk-screen 16, the site 14 of all settings can be made to play useful effect by secondary optical lens silk-screen 16.LED 11 is welded on by tin cream on the LED pad 17 on PCB12, and the secondary optical lens silk-screen 16 of PCB12 also arranges secondary optical lens 13, and secondary optical lens 13 is arranged on above LED 11.The diameter of site 14 is 1.5mm, and the mixed light height of backlight module is 18mm, and mixed light height is the backboard cavity depth of backlight module.The symmetry axis of secondary optical lens 13 and the symmetry axis of LED 11 overlap, and secondary optical lens 13 is reflective lens, and its lighting angle is greater than 160 °.LED 11 is small-power bonded LED lamp 11 pearl, and the diameter range of its light-emitting area is at 2.1mm, and its package dimension is 3535.Unequal absorption is carried out for light in the site 14 be centered around around LED 11, weakens the light near LED 11, relatively improves away from LED 11 place to the reflex of light, thus makes the light on diffuser plate 4 more even.Meanwhile, these sites 14 have selective for light, can weaken the light near LED, also can ensure the brightness at center simultaneously, improve overall display effect.
Embodiment 6
As shown in Fig. 3, Fig. 5 and Fig. 8, a kind of down straight aphototropism mode set, backlight module is followed successively by backboard 2, lamp bar 1, reflector plate 3, diffuser plate 4, prismatic lens 5 and diffusion sheet 6 from the bottom up, lamp bar 1 comprises LED 11 and PCB12, the solder mask upper surface of PCB12 has multiple site 14, site 14 arranges layer by layer centered by LED pad 17, and the shape of the distribution of site 14 is rhombus, and the distribution of site 14 to be limited on PCB12 in secondary optical lens silk-screen 16.Site 14, for PCB12 installing the position of secondary optical lens 13, is distributed in secondary optical lens silk-screen 16, the site 14 of all settings can be made to play useful effect by secondary optical lens silk-screen 16.LED 11 is welded on by tin cream on the LED pad 17 on PCB12, and the secondary optical lens silk-screen 16 of PCB12 also arranges secondary optical lens 13, and secondary optical lens 13 is arranged on above LED 11.The diameter of site 14 is 0.5mm, and the mixed light height of backlight module is 28mm, and mixed light height is the backboard cavity depth of backlight module.The symmetry axis of secondary optical lens 13 and the symmetry axis of LED 11 overlap, and secondary optical lens 13 is straight-down negative lens, and its lighting angle is greater than 160 °.LED 11 is small-power bonded LED lamp 11 pearl, and the diameter range of its light-emitting area is at 2.1mm, and its package dimension is 3535.Unequal absorption is carried out for light in the site 14 be centered around around LED 11, weakens the light near LED 11, relatively improves away from LED 11 place to the reflex of light, thus makes the light on diffuser plate 4 more even.Meanwhile, these sites 14 have selective for light, can weaken the light near LED, also can ensure the brightness at center simultaneously, improve overall display effect.
Claims (8)
1. a PCB, this PCB is used for, in down straight aphototropism mode set, it is characterized in that the solder mask upper surface of described PCB has multiple site, described site arranges layer by layer centered by LED pad, and the distribution of described site is limited in the silk-screen of secondary optical lens on PCB.
2. a kind of PCB as claimed in claim 1, is characterized in that: the shape of the distribution of described site is circular, square or rhombus.
3. a kind of PCB as claimed in claim 1, is characterized in that: the diameter of described site is between 0.5-2mm.
4. a down straight aphototropism mode set, described backlight module is followed successively by backboard, lamp bar, reflector plate, diffuser plate, prismatic lens and diffusion sheet from the bottom up, described lamp bar comprises LED, PCB and secondary optical lens, described LED is welded on the LED pad on PCB by tin cream, described secondary optical lens is arranged on above described LED, it is characterized in that: described PCB is PCB as claimed any one in claims 1 to 3.
5. down straight aphototropism mode set as claimed in claim 4, it is characterized in that: diameter and the mixed light height of described site are inversely proportional to, mixed light height is the backboard cavity depth of backlight module.
6. down straight aphototropism mode set as claimed in claim 4, is characterized in that: the symmetry axis of described secondary optical lens and the symmetry axis of described LED overlap.
7. down straight aphototropism mode set as claimed in claim 4, is characterized in that: described secondary optical lens is straight-down negative lens or reflective lens.
8. down straight aphototropism mode set as claimed in claim 4, is characterized in that: described LED is small-power bonded LED lamp pearl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833201.5U CN204387981U (en) | 2014-12-24 | 2014-12-24 | The down straight aphototropism mode set of a kind of PCB and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833201.5U CN204387981U (en) | 2014-12-24 | 2014-12-24 | The down straight aphototropism mode set of a kind of PCB and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387981U true CN204387981U (en) | 2015-06-10 |
Family
ID=53360697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420833201.5U Withdrawn - After Issue CN204387981U (en) | 2014-12-24 | 2014-12-24 | The down straight aphototropism mode set of a kind of PCB and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204387981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948854A (en) * | 2020-08-21 | 2020-11-17 | 安徽芯瑞达科技股份有限公司 | Ultra-thin straight following formula backlight unit based on chip level light emitting area |
-
2014
- 2014-12-24 CN CN201420833201.5U patent/CN204387981U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948854A (en) * | 2020-08-21 | 2020-11-17 | 安徽芯瑞达科技股份有限公司 | Ultra-thin straight following formula backlight unit based on chip level light emitting area |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104534417A (en) | PCB and direct type backlight module with PCB | |
| CN202521499U (en) | Light guide plate, backlight source and liquid crystal display device | |
| CN203131615U (en) | Straight-down backlight module and liquid crystal display device | |
| CN204494220U (en) | A kind of down straight aphototropism mode set | |
| CN203385969U (en) | Backlight module | |
| CN104796646B (en) | Laser television screen and laser TV system | |
| CN204387981U (en) | The down straight aphototropism mode set of a kind of PCB and application thereof | |
| CN204229084U (en) | New type reflection chip architecture | |
| CN203731291U (en) | Novel reflector plate capable of avoiding uneven brightness | |
| CN204666845U (en) | Energy-saving antidazzle photosphere face diffuser plate | |
| CN201599726U (en) | Reflector | |
| CN103091767A (en) | Liquid crystal display device and light emitting diode (LED) backlight unit and light guide plate and manufacturing method of light guide plate | |
| CN204516794U (en) | A kind of Surface Mount LED | |
| CN203323024U (en) | Diffusion plate support, direct type backlight module and display device | |
| CN204679669U (en) | Novel edge eyeglass | |
| CN203365348U (en) | Glass detection device | |
| CN103542296B (en) | A kind of LED lamp bar and direct-light type LED backlight module | |
| CN108776366A (en) | A kind of light guide plate and preparation method thereof | |
| CN107702061A (en) | A kind of lens subassembly and display device | |
| CN204884446U (en) | LED display screen | |
| CN209374483U (en) | A kind of novel emission pipe and reception pipe | |
| CN207074328U (en) | A kind of backlight for solving the screen dark problem of chamfering comprehensively | |
| CN102661538B (en) | Direct type backlight module group and liquid crystal display device | |
| CN207557620U (en) | Side entrance back module, LCD TV, intelligent terminal | |
| CN206209255U (en) | A kind of backlight light bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 230601 Anhui Province Fang Xing Hefei economic and Technological Development Zone, Road No. 6988 core Ruida science and Technology Park Patentee after: Anhui Polytron Technologies Inc Address before: 230601 Hefei economic and Technological Development Zone, Furong Road, Furong Road, No. 2, factory floor, layer three, Anhui Patentee before: ANHUI COREACH ELECTRIC TECHNOLOGY LIMITED |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150610 Effective date of abandoning: 20180626 |