CN203240488U - Backlight lens, direct backlight module and liquid crystal display - Google Patents
Backlight lens, direct backlight module and liquid crystal display Download PDFInfo
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- CN203240488U CN203240488U CN 201320155329 CN201320155329U CN203240488U CN 203240488 U CN203240488 U CN 203240488U CN 201320155329 CN201320155329 CN 201320155329 CN 201320155329 U CN201320155329 U CN 201320155329U CN 203240488 U CN203240488 U CN 203240488U
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- backlight
- lens
- light
- lens backlight
- mode set
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Abstract
The utility model discloses a backlight lens, a direct backlight module and a liquid crystal display. The middle of the backlight lens is sunken, the backlight lens comprises an light-emergent surface and an light-incident surface, wherein the side of the backlight lens, which is opposite from the sinking direction, is the light-emergent surface, the side of the backlight lens, which corresponds to the sinking direction, is a reflective surface, and the inside of the reflective surface is provided with bumps for enhancing diffuse reflection. When the backlight lens of the technical scheme of the utility model is used, an LED (light-emitting diode) can be arranged on the bottom of the backlight lens, the light which is emitted upwards by the LED directly emerges from the top of the backlight lens, and after being emitted to the backlight lens, the light which is emitted downwards and to both sides by the LED is reflected by the microstructural bumps of the backlight lens and then emerges from the top of the backlight lens. Upward light reflection is realized, the bumps arranged on the reflective surface of the backlight lens can effectively scatter light, so that the angle of emergent light is increased, and thereby the uniformity of backlight brightness is increased.
Description
Technical field
The utility model relates to technical field of liquid crystal display, particularly a kind of lens backlight, down straight aphototropism mode set and liquid crystal display.
Background technology
Backlight module is important composition parts in the liquid crystal display, and at present backlight module mainly is divided into two kinds of side entering type and straight-down negatives.The side entrance back module is the sidepiece that light source is arranged on display, carries out leaded light by LGP, and line source or spot light are changed into area source, realizes uniform projection backlight.Down straight aphototropism mode set is arranged on light source under the liquid crystal layer, by diffuser plate light is dispersed and homogenising, realizes uniform projection backlight.
But, traditional down straight aphototropism mode set mainly is by diffuser plate light to be dispersed and homogenising, but realize that by diffuser plate the effect that light disperses is obvious not, therefore so that the rising angle of backlight module is less, (diffuser plate is to the distance of light source center because lighting angle has determined the light mixing distance of backlight module to a great extent, be the inner thickness of display), therefore the light mixing distance of traditional backlight module is larger, the thickness of display is larger, this is unfavorable for the development of the ultrathin of liquid crystal display, in addition in traditional down straight aphototropism mode set, usually need to realize uniformity of light with more LED and satisfy the requirement of brightness, this is just so that production cost is higher.
The utility model content
Main purpose of the present utility model provides a kind of lens backlight, down straight aphototropism mode set and liquid crystal display, is intended to reduce the light mixing distance of backlight module, reduces the thickness of backlight module.
The utility model proposes a kind of lens backlight, described lens backlight are the medial recess setting, these lens backlight comprise exiting surface and reflecting surface, a side relative with the depression direction of wherein said lens backlight is that exiting surface, a corresponding side are reflecting surface, and described reflecting surface inboard is provided with and strengthens irreflexive projection.
Preferably, the center of described lens backlight towards described exiting surface direction have for the hole of LED phase embedding.
Preferably, the shape of described projection comprises following a kind of at least: centrum, cylinder, spheroid, hemisphere.
Preferably, described lens backlight are the horn-like setting of being of medial recess.
The utility model further proposes a kind of down straight aphototropism mode set, comprise PCB and be arranged on LED on this PCB, described down straight aphototropism mode set also comprises lens backlight, these lens backlight are the medial recess setting, these lens backlight comprise exiting surface and reflecting surface, a side relative with the depression direction of wherein said lens backlight is that exiting surface, a corresponding side are reflecting surface, and described reflecting surface inboard is provided with and strengthens irreflexive projection.
Preferably, the center of described lens backlight towards described exiting surface direction have for the hole of LED phase embedding.
Preferably, the shape of described projection comprises following a kind of at least: centrum, cylinder, spheroid, hemisphere.
Preferably, described down straight aphototropism mode set also comprises backboard and the reflector plate that is arranged on this backboard, and wherein said PCB is arranged on this reflector plate, and described LED is attached on the described PCB.
Preferably, the first brightening piece, the second brightening piece, compound brightening piece and glass substrate that described down straight aphototropism mode set also is included in the exiting surface top of described lens backlight, sets gradually along light direction, the perpendicular direction that adds lustre to of add lustre to direction and second brightening piece of described the first brightening piece.
The utility model further also proposes a kind of liquid crystal display, comprise down straight aphototropism mode set, this down straight aphototropism mode set comprises PCB and is arranged on LED on this PCB, described down straight aphototropism mode set also comprises lens backlight, these lens backlight are the medial recess setting, these lens backlight comprise exiting surface and reflecting surface, and a side relative with the depression direction of wherein said lens backlight is that exiting surface, a corresponding side are reflecting surface, and described reflecting surface inboard is provided with and strengthens irreflexive projection.
The lens backlight of technical solutions of the utility model in use, LED can be arranged on lens backlight bottom, the make progress light of outgoing of LED directly penetrates from lens backlight top, LED is downwards and behind the light directive lens backlight of both sides outgoing, after the projection reflection of the micro-structural of lens backlight from lens backlight top ejaculation.Realization is upwards reflection of light, arrange on the reflecting surface of these lens backlight some projections, can effectively carry out scattering to light, make rising angle become large, and then improve the uniformity of backlight illumination.
Description of drawings
Fig. 1 is the structural representation of the utility model lens backlight;
Fig. 2 is the partial enlarged drawing of one embodiment of A place among Fig. 1;
Fig. 3 is the partial enlarged drawing of another embodiment of A place among Fig. 1;
Fig. 4 is the partial enlarged drawing of the another embodiment in A place among Fig. 1;
Fig. 5 is the structural representation of the utility model down straight aphototropism mode set.
The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
The specific embodiment
Be described further with regard to the technical solution of the utility model below in conjunction with drawings and the specific embodiments.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model proposes a kind of lens backlight.
Referring to figs. 1 through Fig. 4, Fig. 1 is the structural representation of the utility model lens backlight; Fig. 2 is the partial enlarged drawing of one embodiment of A place among Fig. 1; Fig. 3 is the partial enlarged drawing of another embodiment of A place among Fig. 1; Fig. 4 is the partial enlarged drawing of the another embodiment in A place among Fig. 1.
In the utility model embodiment, these lens 10 backlight are applied among the down straight aphototropism mode set.These lens 10 backlight are the medial recess setting, it comprises an exiting surface and a reflecting surface, the surface with the relative side of depression direction of these lens 10 backlight is exiting surface, the surface with the corresponding side of depression direction of these lens 10 backlight is reflecting surface, be provided with some protrudingly 11 at this reflecting surface, this projection 11 is used for strengthening the diffuse reflection of directive reflecting surface light.
In use, being attached to the make progress light of outgoing of LED20 on the PCB30, that be positioned at lens 10 concave bottom backlight directly penetrates from the exiting surface of lens 10 backlight, LED20 is downwards and behind the reflecting surface of the light directive lens 10 backlight of both sides outgoing, and the projection 11 of the reflecting surface of lens 10 backlight occurs after the diffuse reflections from lens 10 exiting surfaces ejaculation backlight.Realization is upwards reflection of light, and this lens 10 reflectings surface backlight some protruding 11 can carry out scattering to light effectively, strengthened the diffuse reflection of light, and then improved the uniformity of backlight illumination.
In the above-described embodiments, the center of these lens 10 backlight has the hole towards the exiting surface direction, and this hole is used for inlaying LED20.Setting by this hole can make the LED20 that is attached on the PCB30 can be embedded in lens backlight 10 inside, makes LED20 by the internal illumination of lens 10 backlight, is conducive to improve light in lens 10 interior generation scatterings backlight.
In the above-described embodiments, the shape of this projection 11 can for centrum, cylinder, spheroid or hemispheroidal one or more, cross section that namely should projection 11 can be arbitrarily n limit shape, semicircle or circular.As shown in Figure 2, the cross section of this projection 11 is triangle; As shown in Figure 3, the cross section of this projection 11 is quadrangle.As shown in Figure 4, the cross section of this projection 11 is semicircle.The quantity on the limit in these projection 11 cross sections more, its irreflexive effect is better, also just more can guarantee the uniformity of backlight illumination,
In the above-described embodiments, the medial recess of these lens 10 backlight is horn-like setting, and this trumpet-shaped opening angle 〉=160 °.The area of exiting surface can be increased on the one hand, light mixing distance can be dwindled on the other hand, to satisfy the ultrathin needs of liquid crystal display.
The utility model further also proposes a kind of down straight aphototropism mode set.
With reference to Fig. 5, Fig. 5 is the structural representation of the utility model down straight aphototropism mode set.
In the utility model embodiment, this down straight aphototropism mode set comprises PCB30, is arranged on LED20 and lens backlight 10 on this PCB30, wherein, the concrete structure of these lens 10 backlight is with reference to above-described embodiment, because the lens backlight 10 in the present embodiment have adopted the whole technical schemes in above-described embodiment, therefore all beneficial effect the present embodiment that produce in above-described embodiment possess too, do not repeat them here.This LED20 is attached on the PCB30, and is embedded in lens backlight 10 centers in the hole that the exiting surface direction has.
Based on above-described embodiment, this down straight aphototropism mode set also comprises backboard 50, is arranged on the reflector plate 40 on this backboard 50, is provided with above-mentioned PCB30 on this reflector plate 40.At backboard 50 reflector plate 40 being set can reduce the loss of light with the upwards reflection of light of LED20 directive backboard 50, has improved the utilization rate of light, and then has realized reducing the purpose of LED20.
Based on above-described embodiment, the first brightening piece 60, the second brightening piece 70 and glass substrate 90 that this down straight aphototropism mode set also is included in the exiting surface top of lens 10 backlight, sets gradually along light direction, the first brightening piece 60 and the second brightening piece 70 can increase luminous intensity, with in the situation that a small amount of LED20 satisfies the requirement to luminous intensity backlight.Power and energy consumption can be reduced, its caloric value can be reduced again.Wherein be preferably the perpendicular direction that adds lustre to of add lustre to direction and second brightening piece 70 of the first brightening piece 60, when the direction of adding lustre to of the first brightening piece 60 was mutual vertical with the direction of adding lustre to of the second brightening piece 70, under the mating reaction of the two, light enhancing effect was best.
Based on above-described embodiment, this down straight aphototropism mode set also comprises a compound brightening piece 80 that is arranged between the second brightening piece 70 and the glass substrate 90.This compound brightening piece 80 the luminous intensity that can further strengthen down straight aphototropism mode set is set.
At above-described embodiment, the distance≤10mm between LED20 to the first brightening piece 60 to satisfy the requirement of liquid crystal display ultrathin, meets the development trend of liquid crystal display ultrathin.
The utility model further also proposes a kind of liquid crystal display, this liquid crystal display comprises down straight aphototropism mode set, the concrete structure of this down straight aphototropism mode set is with reference to above-described embodiment, because the down straight aphototropism mode set in the liquid crystal display of the present embodiment has adopted whole technical schemes of above-described embodiment, therefore all beneficial effect the present embodiment of producing of above-described embodiment possess too, do not repeat them here.
The above only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (10)
1. lens backlight, it is characterized in that, described lens backlight are the medial recess setting, these lens backlight comprise exiting surface and reflecting surface, a side relative with the depression direction of wherein said lens backlight is that exiting surface, a corresponding side are reflecting surface, and described reflecting surface inboard is provided with and strengthens irreflexive projection.
2. lens backlight as claimed in claim 1 is characterized in that, the center of described lens backlight towards described exiting surface direction have for the hole of LED phase embedding.
3. lens backlight as claimed in claim 2 is characterized in that, the shape of described projection comprises following a kind of at least: centrum, cylinder, spheroid, hemisphere.
4. such as the described lens backlight of any one in the claims 1 to 3, it is characterized in that, described lens backlight are the horn-like setting of being of medial recess.
5. down straight aphototropism mode set, comprise PCB and be arranged on LED on this PCB, it is characterized in that, also comprise lens backlight, these lens backlight are the medial recess setting, these lens backlight comprise exiting surface and reflecting surface, and a side relative with the depression direction of wherein said lens backlight is that exiting surface, a corresponding side are reflecting surface, and described reflecting surface inboard is provided with and strengthens irreflexive projection.
6. down straight aphototropism mode set as claimed in claim 5 is characterized in that, the center of described lens backlight towards described exiting surface direction have for the hole of LED phase embedding.
7. down straight aphototropism mode set as claimed in claim 6 is characterized in that, the shape of described projection comprises following a kind of at least: centrum, cylinder, spheroid, hemisphere.
8. such as the described down straight aphototropism mode set of any one in the claim 5 to 7, it is characterized in that, also comprise backboard and the reflector plate that is arranged on this backboard, wherein said PCB is arranged on this reflector plate, and described LED is attached on the described PCB.
9. such as the described down straight aphototropism mode set of any one in the claim 5 to 7, it is characterized in that, the first brightening piece, the second brightening piece, compound brightening piece and the glass substrate that also are included in the exiting surface top of described lens backlight, set gradually along light direction, the perpendicular direction that adds lustre to of add lustre to direction and second brightening piece of described the first brightening piece.
10. a liquid crystal display is characterized in that, comprises such as the described down straight aphototropism mode set of any one in the claim 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320155329 CN203240488U (en) | 2013-03-29 | 2013-03-29 | Backlight lens, direct backlight module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320155329 CN203240488U (en) | 2013-03-29 | 2013-03-29 | Backlight lens, direct backlight module and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203240488U true CN203240488U (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320155329 Expired - Fee Related CN203240488U (en) | 2013-03-29 | 2013-03-29 | Backlight lens, direct backlight module and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203240488U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266110A (en) * | 2014-09-17 | 2015-01-07 | 广东长虹电子有限公司 | Novel backlight module with hybrid application lenses |
| CN110501842A (en) * | 2018-05-18 | 2019-11-26 | 深圳Tcl新技术有限公司 | A kind of backlight module and display device |
| CN113296315A (en) * | 2021-06-02 | 2021-08-24 | 睿合科技有限公司 | Efficient ultrathin direct type backlight equipment |
-
2013
- 2013-03-29 CN CN 201320155329 patent/CN203240488U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266110A (en) * | 2014-09-17 | 2015-01-07 | 广东长虹电子有限公司 | Novel backlight module with hybrid application lenses |
| CN110501842A (en) * | 2018-05-18 | 2019-11-26 | 深圳Tcl新技术有限公司 | A kind of backlight module and display device |
| CN113296315A (en) * | 2021-06-02 | 2021-08-24 | 睿合科技有限公司 | Efficient ultrathin direct type backlight equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: TCL overseas Electronics (Huizhou) Co., Ltd. Assignor: Shenzhen TCL New Technology Co., Ltd. Contract record no.: 2013440020439 Denomination of utility model: Backlight lens, direct backlight module and liquid crystal display Granted publication date: 20131016 License type: Exclusive License Record date: 20131230 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: TCL overseas Electronics (Huizhou) Co., Ltd. Assignor: Shenzhen TCL New Technology Co., Ltd. Contract record no.: 2013440020439 Denomination of utility model: Backlight lens, direct backlight module and liquid crystal display Granted publication date: 20131016 License type: Exclusive License Record date: 20131230 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20210329 |