CN207424469U - A kind of new-type display screen backlight module - Google Patents
A kind of new-type display screen backlight module Download PDFInfo
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- CN207424469U CN207424469U CN201721512796.4U CN201721512796U CN207424469U CN 207424469 U CN207424469 U CN 207424469U CN 201721512796 U CN201721512796 U CN 201721512796U CN 207424469 U CN207424469 U CN 207424469U
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- snoot
- light
- display screen
- cold
- diffusion sheet
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Abstract
The utility model discloses a kind of new-type display screen backlight modules, including frame, the lower end of the frame is equipped with protective plate, the upper end of the protective plate is fixed with control circuit board, the upper end of the control circuit board is fixed with reflector, the upper end of the reflector is equipped with cold-cathode lamp, the outside of the cold-cathode lamp is equipped with snoot, the upper end of the snoot is equipped with astigmatism convex block, rectangular channel is provided in the middle part of the lower end of the snoot, the upper end of the rectangular channel is equipped with half slot, the cold-cathode lamp is located at the inner cavity lower end of rectangular channel, the snoot is located at the inner cavity lower end of light-source chamber, the upper end of the light-source chamber is equipped with light guide plate, the upper end of the light guide plate is fixed with lower diffusion sheet, the upper end of the lower diffusion sheet is fixed with lower light collecting plate.The new-type display screen backlight module, by snoot and astigmatism projection cube structure, is greatly saved the energy, simplifies light guide plate internal structure, has saved cost.
Description
Technical field
The utility model is related to display technology fields, are specially a kind of new-type display screen backlight module.
Background technology
With the continuous development of LCD technology, the application field of liquid crystal display particularly colour liquid crystal display device
Constantly widening.It is pulled by the market of liquid crystal display, backlight industry, have an air of prosperity scene.LCD is non-luminescent property
Display device, the function of display need be can be only achieved with backlight.The quality of backlight performance is except that can directly affect LCD
It images outside quality, the cost of backlight accounts for the 30-50% of LCD module, and the electric power consumed more accounts for the 75% of module, can say it is LCD
Considerable spare part in module, but its light source is point light source in use for common backlight module, point light source into
During row irradiation, light source is irradiated on catheter plate the internal structure for not enough uniformly, increasing light guide plate, therefore we have proposed one kind
New-type display screen backlight module.
Utility model content
The purpose of this utility model is to provide a kind of new-type display screen backlight module, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the utility model provides following technical solution：A kind of new-type display screen backlight module, including
Frame, the lower end of the frame are equipped with protective plate, and the upper end of the protective plate is fixed with control circuit board, the control circuit
The upper end of plate is fixed with reflector, and the upper end of the reflector is equipped with cold-cathode lamp, and the outside of the cold-cathode lamp, which is equipped with, gathers
Light shield, the upper end of the snoot are equipped with astigmatism convex block, rectangular channel are provided in the middle part of the lower end of the snoot, the rectangular channel
Upper end is equipped with half slot, and the cold-cathode lamp is located at the inner cavity lower end of rectangular channel, and the snoot is located under the inner cavity of light-source chamber
End, the upper end of the light-source chamber are equipped with light guide plate, and the upper end of the light guide plate is fixed with lower diffusion sheet, the lower diffusion sheet
Upper end is fixed with lower light collecting plate, and the upper end of the lower light collecting plate is fixed with light-collecting piece, and the upper end of the upper light-collecting piece is consolidated
Surely upper diffusion sheet is equipped with, the upper end of the upper diffusion sheet is fixed with display screen.
Preferably, the snoot is equipped with several, and the snoot is uniformly arranged in the upper end of reflector, described poly-
Two sides of light shield or so and vertical plane are in that 45 degree of angle, the snoot or so, two sides are smooth.
Preferably, the section of the astigmatism convex block is arc-shaped, and the surface of the astigmatism convex block is smooth.
Preferably, the quantity of the cold-cathode lamp and the quantity of snoot are identical, and the cold-cathode lamp passes through conducting wire and control
Circuit board electrical series processed.
Preferably, the control circuit board, reflector, light guide plate, lower diffusion sheet, lower light collecting plate, upper light-collecting piece, upper diffusion
Piece and display screen are respectively positioned between frame.
Compared with prior art, the beneficial effects of the utility model are：The new-type display screen backlight module, it is poly- by being equipped with
The structure of light shield and astigmatism convex block, the light of the electric light source of cold-cathode lamp is in luminous be irradiated on snoot, by snoot
The full transmitting of two sides so that point light source is partially converted into linear light source and is irradiated on light guide plate, while part light source is by dissipating
Light convex block carries out divergent irradiation to light guide plate so that and light guide plate has greatly saved the energy into during the processing of line light source, and
And snoot enables to light source to be uniformly irradiated on light guide plate.
Description of the drawings
Fig. 1 is the utility model section view.
In figure：It is 1 frame, 2 protective plates, 3 control circuit boards, 4 reflectors, 5 snoots, 6 rectangular channels, 7 astigmatism convex blocks, 8 cold
Cathode modulation, 9 light guide plates, 10 times diffusion sheets, 11 times light collecting plates, light-collecting piece on 12, diffusion sheet on 13,14 display screens, 15 light-source chambers,
16 half slots.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of new-type display screen backlight module, including frame
1, the lower end of the frame 1 is equipped with protective plate 2, and protective plate 2 will not be bruised damage for defense controls circuit board 3, described anti-
The upper end of backplate 2 is fixed with control circuit board 3, and control circuit board 3 is in order to control cold-cathode lamp 8 and light guide plate 9, the control
The upper end of circuit board 3 is fixed with reflector 4, and the light source that reflector 4 enables to cold-cathode lamp 8 to send all is reflected into leaded light
On plate 9, the upper end of the reflector 4 is equipped with cold-cathode lamp 8, and cold-cathode lamp 8 provides light source, the cold-cathode lamp for display screen 14
8 quantity is identical with the quantity of snoot 5, and the cold-cathode lamp 8 passes through conducting wire and 3 electrical series of control circuit board.It is described cold
The outside of cathode modulation 8 is equipped with snoot 5, and the snoot 5 is equipped with several, and the snoot 5 is uniformly arranged in reflector 4
Upper end, described 5 or so two sides of snoot and vertical plane are in 45 degree of angle, and described 5 or so two sides of snoot are equal
It is smooth.The upper end of the snoot 5 is equipped with astigmatism convex block 7, and the section of the astigmatism convex block 7 is arc-shaped, the astigmatism convex block 7
Surface it is smooth.It is provided with rectangular channel 6 in the middle part of the lower end of the snoot 5, rectangular channel 6 is in order to place sombre pole lamp 8, described cold the moon
Pole lamp 8 is located at the inner cavity lower end of rectangular channel 6, and the upper end of the rectangular channel 6 is equipped with half slot 16, and the snoot 5 is located at light source
The inner cavity lower end of chamber 15, the upper end of the light-source chamber 15 are equipped with light guide plate 9, and the upper end of the light guide plate 9 is fixed with lower diffusion
Piece 10, the upper end of the lower diffusion sheet 10 are fixed with lower light collecting plate 11, and the upper end of the lower light collecting plate 11 is fixed with collection
Mating plate 12, the upper end of the upper light-collecting piece 12 are fixed with diffusion sheet 13, and the upper end of the upper diffusion sheet 13 is fixed with aobvious
Display screen 14, is powered to backlight module so that cold-cathode lamp 8 starts to shine, and cold-cathode lamp 8 is cold as a point light source
The light of the electric light source of cathode modulation 8 is in luminous be irradiated on snoot 5, by the full transmitting of 5 two sides of snoot so that point
Light source is partially converted into linear light source and is irradiated on light guide plate 9, while part light source carries out divergent irradiation by astigmatism convex block 7 and arrives
On light guide plate 9 so that light guide plate 9 has greatly saved the energy, and snoot 5 enables into during the processing of line light source
Light source is uniformly irradiated on light guide plate 9, and light guide plate 9 is generally made of the acrylic plastics of high transparency, surface unusual light
It is smooth, so that the total reflection that most of internal light can be regular on its flat surface, without injecting to outside light guide plate,
The light projected from light guide plate 9 is by lower diffusion sheet 10, lower light collecting plate 11, upper light-collecting piece 12 and upper diffusion sheet 13 to light source
After processing so that display screen 14 shows corresponding picture, the control circuit board 3, reflector 4, light guide plate 9, lower diffusion sheet
10th, lower light collecting plate 11, upper light-collecting piece 12, upper diffusion sheet 13 and display screen 14 are respectively positioned between frame 1.
Operation principle：New-type display screen backlight module is powered when being worked to backlight module so that cold cathode
Lamp 8 starts to shine, and for cold-cathode lamp 8 as a point light source, the light of the electric light source of cold-cathode lamp 8 is irradiated to optically focused luminous
When on cover 5, by the full transmitting of 5 two sides of snoot so that point light source is partially converted into linear light source and is irradiated to light guide plate 9
On, while part light source carries out divergent irradiation to light guide plate 9 by astigmatism convex block 7 so that light guide plate 9 is at the place into line light source
During reason, the energy has greatly been saved, has simplified the structure inside light guide plate 9, has saved cost, and snoot 5 enables to
Light source is uniformly irradiated on light guide plate 9, and light guide plate 9 is generally made of the acrylic plastics of high transparency, surface unusual light
It is smooth, so that the total reflection that most of internal light can be regular on its flat surface, without injecting to outside light guide plate,
The light projected from light guide plate 9 is by lower diffusion sheet 10, lower light collecting plate 11, upper light-collecting piece 12 and upper diffusion sheet 13 to light source
After processing so that display screen 14 shows corresponding picture, and protective plate 2 will not be bruised damage for defense controls circuit board 3.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of new-type display screen backlight module, including frame（1）, it is characterised in that：The frame（1）Lower end be equipped with protection
Plate（2）, the protective plate（2）Upper end be fixed with control circuit board（3）, the control circuit board（3）Upper end fix set
There is reflector（4）, the reflector（4）Upper end be equipped with cold-cathode lamp（8）, the cold-cathode lamp（8）Outside be equipped with optically focused
Cover（5）, the snoot（5）Upper end be equipped with astigmatism convex block（7）, the snoot（5）Lower end in the middle part of be provided with rectangular channel
（6）, the cold-cathode lamp（8）Positioned at rectangular channel（6）Inner cavity lower end, the rectangular channel（6）Upper end be equipped with half slot（16）,
The snoot（5）Positioned at light-source chamber（15）Inner cavity lower end, the light-source chamber（15）Upper end be equipped with light guide plate（9）, it is described
Light guide plate（9）Upper end be fixed with lower diffusion sheet（10）, the lower diffusion sheet（10）Upper end be fixed with lower light collecting plate
（11）, the lower light collecting plate（11）Upper end be fixed with light-collecting piece（12）, the upper light-collecting piece（12）Upper end fix set
There is upper diffusion sheet（13）, the upper diffusion sheet（13）Upper end be fixed with display screen（14）.
2. a kind of new-type display screen backlight module according to claim 1, it is characterised in that：The snoot（5）It is equipped with
Several, the snoot（5）Uniformly it is arranged in reflector（4）Upper end, the snoot（5）The side of left and right two is with erecting
Face the angle in 45 degree, the snoot directly（5）Two sides in left and right are smooth.
3. a kind of new-type display screen backlight module according to claim 1, it is characterised in that：The astigmatism convex block（7）'s
Section is arc-shaped, the astigmatism convex block（7）Surface it is smooth.
4. a kind of new-type display screen backlight module according to claim 1, it is characterised in that：The cold-cathode lamp（8）'s
Quantity and snoot（5）Quantity it is identical, the cold-cathode lamp（8）Pass through conducting wire and control circuit board（3）Electrical series.
5. a kind of new-type display screen backlight module according to claim 1, it is characterised in that：The control circuit board（3）、
Reflector（4）, light guide plate（9）, lower diffusion sheet（10）, lower light collecting plate（11）, upper light-collecting piece（12）, upper diffusion sheet（13）And display
Screen（14）It is respectively positioned on frame（1）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721512796.4U CN207424469U (en) | 2017-11-14 | 2017-11-14 | A kind of new-type display screen backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721512796.4U CN207424469U (en) | 2017-11-14 | 2017-11-14 | A kind of new-type display screen backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207424469U true CN207424469U (en) | 2018-05-29 |
Family
ID=62306051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721512796.4U Active CN207424469U (en) | 2017-11-14 | 2017-11-14 | A kind of new-type display screen backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207424469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870848A (en) * | 2019-03-13 | 2019-06-11 | 厦门天马微电子有限公司 | A kind of backlight module and display device |
-
2017
- 2017-11-14 CN CN201721512796.4U patent/CN207424469U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870848A (en) * | 2019-03-13 | 2019-06-11 | 厦门天马微电子有限公司 | A kind of backlight module and display device |
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