CN208888543U - A kind of down straight aphototropism mode set of even light mixing - Google Patents
A kind of down straight aphototropism mode set of even light mixing Download PDFInfo
- Publication number
- CN208888543U CN208888543U CN201821877938.1U CN201821877938U CN208888543U CN 208888543 U CN208888543 U CN 208888543U CN 201821877938 U CN201821877938 U CN 201821877938U CN 208888543 U CN208888543 U CN 208888543U
- Authority
- CN
- China
- Prior art keywords
- rear shell
- lamp bar
- screen
- silk
- backlight lamp
- 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.)
- Active
Links
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model relates to a kind of down straight aphototropism mode sets of even light mixing, including rear shell, reflector plate, diffusion cover piece and backlight lamp bar, the reflector plate is attached at the medial surface of the rear shell, the backlight lamp bar is set in rear shell, the diffusion cover piece is covered at the upper port of the rear shell, the backlight lamp bar includes pcb board, is spaced the LED lamp bead being set on the pcb board, covers at the lens above the LED lamp bead, is equipped at intervals with along the lens two sides of the pcb board length direction for light-absorbing silk-screen；It is used for light-absorbing silk-screen by the setting at the lens two sides interval of pcb board length direction, the absorption using silk-screen to reflected light to keep the light mixing of mould group more uniform to reduce the brightness above backlight lamp bar.
Description
Technical field
The utility model relates to field backlight of television mould technical group field, be related specifically to a kind of even light mixing it is straight under
Formula backlight module.
Background technique
The backlight of liquid crystal TV set mainly has side entering type and straight-down negative two ways, because straight-down negative is in cost and manufacture
Stability etc. is better than side entering type, and image quality shows also increasingly superior, the approval by television manufacturer and consumer.It is low in
In cost direct-type backlight, technology trends are increasingly sent out towards the quantity for reducing LED lamp bead, the direction for improving luminous efficiency
Exhibition.Due to the reduction of quantity of light source, the luminance raising of single LED lamp bead will cause the non-uniform phenomenon of backlight module light mixing.
In the prior art, such as application No. is 201820485608.1,201621332785 utility model patents, saturating
Silk-screen is arranged in corresponding pcb board surface below mirror, for reducing brightness above light source, to improve the even light mixing of mould group.
But with the continuous propulsion of technology, only the LED lamp bead quantity on reduction backlight lamp bar, which has been unable to satisfy market, is needed
Ask, further become the trend of industry development in the quantity for reducing backlight lamp bar in backlight module, and this also bring is new
Technical problem, with the reduction of backlight lamp bar quantity, there is the optics taste problem of " light/dark striped " in backlight module.
Summary of the invention
Technical problem to be solved by the utility model is: providing a kind of down straight aphototropism mode set of even light mixing, back is solved
The optics of optical mode group " light/dark striped " samples problem.
The technical solution of the utility model are as follows: a kind of down straight aphototropism mode set of even light mixing, including rear shell, reflector plate,
Cover piece and backlight lamp bar are spread, the reflector plate is attached at the medial surface of the rear shell, and the backlight lamp bar is set in rear shell, institute
It states diffusion cover piece to be covered at the upper port of the rear shell, the backlight lamp bar includes pcb board, interval on the pcb board
LED lamp bead, cover at lens above the LED lamp bead, along the lens two sides interval of the pcb board length direction
Equipped with for light-absorbing silk-screen；The light that LED lamp bead issues is irradiated on diffusion cover piece, a part after lens reflect
Light is uniformly dispersed on diffusion cover piece, and a part of light is reflected back module internal, by the way that silk-screen is arranged, is inhaled to reflected light
It receives, reduces the brightness above backlight lamp bar, to solve the problems, such as the optics taste of mould group " light/dark striped ".
Preferably, the backlight lamp bar is attached at the upper surface of the reflector plate, and the silk-screen is set to the upper of the pcb board
Surface.
Preferably, the backlight lamp bar is attached at the inside bottom surface of the rear shell, and the reflector plate is covered on the backlight
The upper surface of lamp bar, the silk-screen are set to the upper surface of the pcb board, and the reflector plate corresponds to the lens and the silk-screen
Position is equipped with first through hole, and first through hole can be long hole, be also possible to respectively correspond two hole locations of lens and silk-screen.
Preferably, the backlight lamp bar is attached at the inside bottom surface of the rear shell, and the reflector plate is covered on the backlight
The upper surface of lamp bar, the position that the reflector plate corresponds to the lens are equipped with the second through-hole, and it is logical that the silk-screen is set to described second
On the reflector plate of hole two sides.
Further, the reflector plate includes egative film, the side wall piece at left and right sides of the egative film, and the egative film is sticked
In the inside bottom surface of the rear shell, the side wall piece is attached at the side wall on the inside of the rear shell, and the side wall on piece is equipped with and is used for
Weaken the mesh of mould group both ends brightness；Reduce the reflected light of corresponding position by the way that mesh is arranged, to avoid backlight lamp bar
Brightness excessively high optics in both ends samples problem.
Further, the silk-screen is black silk-screen, rounded, diameter 0.5mm-2mm, according to actual mould group situation
Adjust arrangement mode, interval and the silk-screen diameter of silk-screen.
Further, the diffusion cover piece includes diffuser plate and diffusion barrier sheet, plays diffusion to light, improves mould group
The uniformity of light mixing.
The beneficial effects of the utility model are: by being arranged at the lens two sides interval of pcb board length direction for absorbing
The silk-screen of light, the absorption using silk-screen to reflected light make the light mixing of mould group more to reduce the brightness above backlight lamp bar
Uniformly.
Detailed description of the invention
Fig. 1 is 1 structural schematic diagram of the utility model embodiment；
Fig. 2 is the part Fig. 1 a enlarged diagram；
Fig. 3 is 2 structural schematic diagram of the utility model embodiment；
Fig. 4 is the part Fig. 3 b enlarged diagram；
Fig. 5 is 2 cross-sectional view of the utility model embodiment；
Fig. 6 is 3 structural schematic diagram of the utility model embodiment；
Fig. 7 is the part Fig. 6 c enlarged diagram.
Specific embodiment
With reference to the accompanying drawings of the specification and embodiment the utility model is described in further detail.
Embodiment 1: as shown in Figure 1 to Figure 2, a kind of down straight aphototropism mode set of even light mixing, including rear shell, reflector plate 1,
Cover piece and backlight lamp bar 2 are spread, reflector plate 1 is attached at the medial surface of rear shell, and backlight lamp bar 2 is set in rear shell, spreads cover piece lid
At the upper port of rear shell；Backlight lamp bar 2 includes pcb board 21, is spaced the LED lamp bead 22 being set on pcb board 21, covers at
The lens 23 of 22 top of LED lamp bead, backlight lamp bar 2 are attached at the upper surface of reflector plate 1, table on the pcb board 21 of 23 two sides of lens
Face, which is equipped with, is used for light-absorbing silk-screen 24；Reflector plate 1 includes egative film 11, the side wall piece 12 set on 11 left and right sides of egative film, bottom
Piece 11 is attached at the inside bottom surface of rear shell, and side wall piece 12 is attached at the side wall on the inside of the rear shell both ends, and side wall piece 12 is equipped with
For weakening the mesh 13 of mould group both ends brightness.
Embodiment 2: as shown in Figures 3 to 5, a kind of down straight aphototropism mode set of even light mixing, including rear shell, reflector plate 1,
Cover piece and backlight lamp bar 2 are spread, reflector plate 1 is attached at the medial surface of rear shell, and backlight lamp bar 2 is set in rear shell, spreads cover piece lid
At the upper port of rear shell；Backlight lamp bar 2 includes pcb board 21, is spaced the LED lamp bead 22 being set on pcb board 21, covers at
The lens 23 of 22 top of LED lamp bead, backlight lamp bar 2 are attached at the inside bottom surface of rear shell, and reflector plate 1 is covered on backlight lamp bar 2
Upper surface, 21 upper surface of pcb board of 23 two sides of lens, which is equipped with, is used for light-absorbing silk-screen 24, corresponding 23 He of lens of reflector plate 1
The position of silk-screen 24 is equipped with first through hole 111, and first through hole 111 is long hole；Reflector plate 2 includes egative film 11, is set to 11 left side of egative film
The side wall piece 12 of right two sides, egative film 11 are attached at the inside bottom surface of rear shell, and side wall piece 12 is attached at the side wall on the inside of the rear shell,
Side wall piece 12 is equipped with the mesh 13 for weakening the both ends brightness of mould group.
Implement 3: as shown in Figure 6 to 7, a kind of down straight aphototropism mode set of even light mixing, including rear shell, reflector plate 1, expansion
Cover piece and backlight lamp bar 2 are dissipated, reflector plate 1 is attached at the medial surface of rear shell, and backlight lamp bar 2 is set in rear shell, and diffusion cover piece lid is set
At the upper port of rear shell；Backlight lamp bar 2 includes pcb board 21, is spaced the LED lamp bead 22 being set on pcb board 21, covers at LED
The lens 23 of 22 top of lamp bead, backlight lamp bar 2 are attached at the inside bottom surface of rear shell, and reflector plate 1 is covered on the upper table of backlight lamp bar 2
The position in face, the corresponding lens 23 of reflector plate 1 is equipped with the second through-hole 112, along 21 length direction of pcb board 23 two sides of lens it is anti-
It penetrates 1 surface of piece to be equipped at intervals with for light-absorbing silk-screen 113, reflector plate 1 includes egative film 11, set on 11 left and right sides of egative film
Side wall piece 12, egative film 11 are attached at the inside bottom surface of rear shell, and silk-screen 113 and the second through-hole 112 are set on egative film 11, side wall piece
12 are attached at the side wall on the inside of rear shell both ends, and side wall piece 12 is equipped with the mesh 13 for weakening the both ends brightness of mould group.
In above-described embodiment 1-3, the silk-screen is preferably black silk-screen, rounded, diameter 0.5mm-2mm；The expansion
Scattered cover piece includes diffuser plate and diffusion barrier sheet.
The working principle of above-described embodiment 1-3: LED lamp bead is refracted to diffusion cover piece through lens as illuminating source, light
On, a part of light is by projecting mould group after diffusion cover piece diffusion, and another part light is reflected back that mould group is intracavitary, lens two sides
Silk-screen on pcb board or reflector plate absorbs part reflected light, prevents the optics for occurring bright fringes above backlight lamp bar taste from asking
Topic.
The foregoing is merely the better embodiment of the utility model, the utility model is not limited to above-mentioned embodiment party
Formula, there may be the structural modifications that part is small in implementation process, if various changes or modifications to the utility model are not
It is detached from the basic principle and range of the utility model, and is belonged within the scope of the claims and equivalents of the utility model,
Then the utility model is also intended to encompass these modification and variations.
Claims (7)
1. a kind of down straight aphototropism mode set of even light mixing, including rear shell, reflector plate, diffusion cover piece and backlight lamp bar, described anti-
The medial surface that piece is attached at the rear shell is penetrated, the backlight lamp bar is set in rear shell, and the diffusion cover piece is covered on the rear shell
Upper port at, it is characterised in that: the backlight lamp bar include pcb board, interval be set to the pcb board on LED lamp bead, be provide with
Lens above the LED lamp bead are equipped at intervals with along the lens two sides of the pcb board length direction for absorbing light
The silk-screen of line.
2. the down straight aphototropism mode set of even light mixing according to claim 1, it is characterised in that: the backlight lamp bar is sticked
In the upper surface of the reflector plate, the silk-screen is set to the upper surface of the pcb board.
3. the down straight aphototropism mode set of even light mixing according to claim 1, it is characterised in that: the backlight lamp bar is sticked
In the inside bottom surface of the rear shell, the reflector plate is covered on the upper surface of the backlight lamp bar, and the silk-screen is set to the PCB
The upper surface of plate, the reflector plate corresponds to the lens and the position of the silk-screen is equipped with first through hole.
4. the down straight aphototropism mode set of even light mixing according to claim 1, it is characterised in that: the backlight lamp bar is sticked
In the inside bottom surface of the rear shell, the reflector plate is covered on the upper surface of the backlight lamp bar, described in the reflector plate is corresponding
The position of lens is equipped with the second through-hole, and the silk-screen is set on the reflector plate of second through-hole two sides.
5. the down straight aphototropism mode set of even light mixing according to claim 1-4, it is characterised in that: the reflection
Piece includes egative film, the side wall piece at left and right sides of the egative film, and the Negative plate paster is set to the inside bottom surface of the rear shell, described
Side wall piece is attached at the side wall on the inside of the rear shell, and the side wall on piece is equipped with the mesh for weakening the both ends brightness of mould group.
6. the down straight aphototropism mode set of even light mixing according to claim 1-4, it is characterised in that: the silk-screen
It is rounded for black silk-screen, diameter 0.5mm-2mm.
7. the down straight aphototropism mode set of even light mixing according to claim 1-4, it is characterised in that: the diffusion
Cover piece includes diffuser plate and diffusion barrier sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821877938.1U CN208888543U (en) | 2018-11-14 | 2018-11-14 | A kind of down straight aphototropism mode set of even light mixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821877938.1U CN208888543U (en) | 2018-11-14 | 2018-11-14 | A kind of down straight aphototropism mode set of even light mixing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208888543U true CN208888543U (en) | 2019-05-21 |
Family
ID=66518148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821877938.1U Active CN208888543U (en) | 2018-11-14 | 2018-11-14 | A kind of down straight aphototropism mode set of even light mixing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208888543U (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 |
-
2018
- 2018-11-14 CN CN201821877938.1U patent/CN208888543U/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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200142258A1 (en) | Liquid crystal display device and backlight module thereof | |
| CN103486480B (en) | A kind of backlight module and display unit | |
| WO2020082479A1 (en) | Backlight module and display device thereof | |
| CN204129382U (en) | Backing structure and liquid crystal indicator | |
| CN201083928Y (en) | Backlight and its reflecting sheet | |
| CN208888543U (en) | A kind of down straight aphototropism mode set of even light mixing | |
| CN101701693B (en) | Light-emitting device | |
| CN209356810U (en) | Liquid crystal module | |
| CN207833187U (en) | A kind of backlight module and liquid crystal display | |
| CN208818985U (en) | A kind of novel straight down type backlight | |
| CN104456301B (en) | A kind of LED light source module, LED light bar and down straight aphototropism mode set | |
| CN109725464B (en) | Straight-lower side-in combined liquid crystal module backlight display device | |
| CN109358451B (en) | Backlight module and display device thereof | |
| CN103953893A (en) | Dimming unit, backlight module and display device | |
| KR20090019208A (en) | Backlight unit for flat panel display device | |
| CN206282061U (en) | Backlight display module structure and display | |
| CN107942581A (en) | A kind of down straight aphototropism mode set structure | |
| WO2017088447A1 (en) | Bottom lighting led backlight module and display comprising backlight module | |
| CN203784828U (en) | Optical lens for direct type backlights and liquid crystal display backlight screen | |
| CN208940095U (en) | Television backboard | |
| CN203115671U (en) | Direct type backlight module | |
| CN207992634U (en) | Optimize device at a kind of new type superthin back light | |
| CN217213402U (en) | High-brightness LED backlight source | |
| KR20090119399A (en) | Optical panel containing refelective minute beads for backlight | |
| CN206191367U (en) | Leaded light formula back of body light structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220125 Address after: 223999 north side of wulijiang Road, Sihong Economic Development Zone, Suqian City, Jiangsu Province Patentee after: Jiangsu Hengfeng Display Technology Co.,Ltd. Address before: 510800 floor 2, building B, No. 1, Xianke 1st Road, Huadong Town, Huadu District, Guangzhou, Guangdong Patentee before: GUANGZHOU HONGLI ZHIXIAN TECHNOLOGY Co.,Ltd. |