CN209387910U - A kind of display backlight device of ultra-wide operating temperature - Google Patents
A kind of display backlight device of ultra-wide operating temperature Download PDFInfo
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- CN209387910U CN209387910U CN201920055202.4U CN201920055202U CN209387910U CN 209387910 U CN209387910 U CN 209387910U CN 201920055202 U CN201920055202 U CN 201920055202U CN 209387910 U CN209387910 U CN 209387910U
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- guide plate
- light guide
- support body
- backlight
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Abstract
The utility model discloses a kind of display backlight device of ultra-wide operating temperature, including light guide plate, outline border and backlight, support body is equipped between light guide plate and outline border, support body and light guide plate Joint, support body is equipped with the loading chamaer towards the light incident sides of light guide plate, backlight is set in loading chamaer, and there are gaps between backlight and light incident sides, and elastic conducting thermosphere is equipped between support body and outline border.The utility model by the design of support body so that backlight and light guide plate clearance constant, the case where effectively avoiding lamp bead attrition crushing caused by expanding with heat and contract with cold generation, while optical quality is stablized.Elastic conducting thermosphere can provide buffering and heat transfer, have heat dissipation performance well and cushion performance, while deformation quantity is expanded with heat and contract with cold in elimination, be also equipped with crash resistance.Whole design is ingenious, has the characteristics of applicable ultra-wide operating temperature.
Description
Technical field
The utility model relates to a kind of display backlight frame structure more particularly to a kind of displays of ultra-wide operating temperature
Back lighting device, the display device structure technical field belonged to.
Background technique
With the development of extraordinary display technology, for example airborne rear deck of special type display application field, vehicle-mounted, carrier-borne etc. are to large scale
The demand of display gradually increases.However, not can effectively solve in ultra-wide operating temperature range always using side entrance back
(- 45 DEG C~+70 DEG C) backlight, light guide plate, the fixed position relative between external structure and backlight heat dissipation problem.
When display screen works between -45 DEG C~+70 DEG C, the light guide plate in back light system caused by temperature difference because expanding
And contraction, expansion and shrinkage respectively up to 0.3% and 0.6%(with 25 DEG C for reference temperature), for example, 40 cun are aobvious at 25 DEG C
The light guide plate length of display screen is 901mm, and when temperature is increased to 70 DEG C, light guide plate dilation dimension is 2.8mm, and temperature is reduced to -45
DEG C when, light guide plate shrink having a size of 5.0mm.
In this case, light guide plate, backlight, the fixation between external structure and heat dissipation are very crucial.Design it is inappropriate, can
The LED that can be will cause on backlight can not be conducted to external structure by the heat that light guide plate squeezes the generation of broken or backlight, Jin Erzao
At back light system operation irregularity.
Therefore, it is necessary to develop a kind of Large-Sized Backlight System of ultra-wide temperature, designed by reasonable structure, Ji Nengshi
The constant distance of existing backlight and light guide plate incident side, and it is able to achieve the reasonable heat transfer of backlight and external structure.
Utility model content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, and it is improper to there is design for traditional backlight device
The problem of, propose a kind of display backlight device of ultra-wide operating temperature.
In order to achieve the above object, the technology employed by the present utility model is
A kind of display backlight device of ultra-wide operating temperature, including light guide plate, outline border and backlight,
Support body is equipped between the light guide plate and the outline border,
The support body and the light guide plate Joint, the support body are equipped with the light incident sides towards the light guide plate
Loading chamaer, the backlight is set in the loading chamaer, and between the backlight and the light incident sides there are
Gap,
Elastic conducting thermosphere is equipped between the support body and the outline border.
Preferably, the light guide plate is equipped with lug, and the support body is equipped with the pothook to match with the lug,
The lug and the matched one of the pothook.
Preferably, Nian Jie for filler between the lug and the pothook.
Preferably, the elastic conducting thermosphere is filled type elastic conducting thermosphere.
The beneficial effects of the utility model are mainly reflected in:
1. by the design of support body so that backlight and light guide plate clearance constant, effectively avoid the caused lamp that expands with heat and contract with cold
The case where pearl attrition crushing, occurs, while optical quality is stablized.
2. elastic conducting thermosphere can provide buffering and heat transfer, have heat dissipation performance well and cushion performance, is eliminating heat
While swollen shrinkage deformation quantity, it is also equipped with crash resistance.
3. whole design is ingenious, has the characteristics of applicable ultra-wide operating temperature.
Detailed description of the invention
Fig. 1 is a kind of partial structure diagram of the display backlight device of ultra-wide operating temperature of the utility model.
Specific embodiment
The utility model provides a kind of display backlight device of ultra-wide operating temperature.It is practical new to this below in conjunction with attached drawing
Type technical solution is described in detail, so that it is more readily understood and grasps.
A kind of display backlight device of ultra-wide operating temperature, as shown in Figure 1, including light guide plate 1, outline border 2 and backlight
3.Backlight 3 is used to irradiate the light incident sides of light guide plate 1.
In this case, it is equipped with support body 4 between light guide plate 1 and outline border 2, support body 4 and 1 Joint of light guide plate, on support body 4
Loading chamaer equipped with the light incident sides towards light guide plate 1, backlight 3 are set in loading chamaer, and backlight 3 and light incident sides
Between there are gaps, between support body 4 and outline border 2 be equipped with elastic conducting thermosphere 5.
It specifically describes, is designed using the support body 4 being servo-actuated with light guide plate 1, and loading chamaer is set on support body 4,
There are gaps always between light incident sides after backlight 3 carries, in addition, being provided between support body 4 and outline border 2 for leading
The elastic conducting thermosphere 5 of heat.
Principle explanation, light guide plate 1 and support body 4 are linkage structure, and when environment temperature is down or up, light guide plate is shunk
Or expansion, and support body 4 and light guide plate 1 are servo-actuated, without hard contact between backlight 3 and light guide plate 1, protect backlight 3
Lamp bead, elastic conducting thermosphere 5 are connected with support body 4 always, can provide effective heat transfer, it is ensured that stable operation.
In one preferred embodiment of this case, light guide plate 1 is equipped with lug 6, and support body is equipped with to match with lug 6
Pothook 7, lug 6 and the matched one of pothook 7.
It should be noted that Fig. 1 is the part-structure figure of specific embodiment, light guide plate 1 has pairs of lug 6, and
Support body is realized to stablize with light guide plate 1 by the pothooks 7 of two sides and is coupled, it is ensured that the two it is affixed it is reliable effectively.
It is Nian Jie for filler between lug 6 and pothook 7, it is easy to fixed.Elastic conducting thermosphere 5 is filled type elastic conducting thermosphere,
Have more preferably heat-conductive characteristic and snubber elastomeric.
The operation in -45 DEG C~+70 DEG C temperature ranges of the display backlight device of this case is stablized, and optical quality is reliable, dissipates
It is hot excellent.
By above description it can be found that a kind of display backlight device of ultra-wide operating temperature of the utility model, passes through
The design of support body is so that backlight and light guide plate clearance constant, effectively avoid the feelings of lamp bead attrition crushing caused by expanding with heat and contract with cold
Condition occurs, while optical quality is stablized.Elastic conducting thermosphere can provide buffering and heat transfer, have heat dissipation performance well and buffering
Performance is also equipped with crash resistance while deformation quantity is expanded with heat and contract with cold in elimination.Whole design is ingenious, has applicable ultra-wide work temperature
The characteristics of spending.
The technical solution of the utility model is fully described above, it should be noted that the tool of the utility model
Body embodiment is simultaneously not limited by the description set out above, and those skilled in the art exist according to the Spirit Essence of the utility model
All technical solutions that structure, method or function etc. are formed using equivalents or equivalent transformation, all fall within this reality
Within novel protection scope.
Claims (4)
1. a kind of display backlight device of ultra-wide operating temperature, including light guide plate, outline border and backlight, it is characterised in that:
Support body is equipped between the light guide plate and the outline border,
The support body and the light guide plate Joint, the support body are equipped with the dress towards the light incident sides of the light guide plate
Chamber is carried, the backlight is set in the loading chamaer, and there are gap between the backlight and the light incident sides,
Elastic conducting thermosphere is equipped between the support body and the outline border.
2. a kind of display backlight device of ultra-wide operating temperature according to claim 1, it is characterised in that: the light guide plate
It is equipped with lug, the support body is equipped with the pothook to match with the lug, and the lug and the pothook match
Connect one.
3. a kind of display backlight device of ultra-wide operating temperature according to claim 2, it is characterised in that: the lug with
It is bonded between the pothook for filler.
4. a kind of display backlight device of ultra-wide operating temperature according to claim 1, it is characterised in that: the elastic conducting
Thermosphere is filled type elastic conducting thermosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920055202.4U CN209387910U (en) | 2019-01-14 | 2019-01-14 | A kind of display backlight device of ultra-wide operating temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920055202.4U CN209387910U (en) | 2019-01-14 | 2019-01-14 | A kind of display backlight device of ultra-wide operating temperature |
Publications (1)
| Publication Number | Publication Date |
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| CN209387910U true CN209387910U (en) | 2019-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920055202.4U Active CN209387910U (en) | 2019-01-14 | 2019-01-14 | A kind of display backlight device of ultra-wide operating temperature |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759602A (en) * | 2021-09-07 | 2021-12-07 | 京东方科技集团股份有限公司 | Backlight module, display device and display system |
-
2019
- 2019-01-14 CN CN201920055202.4U patent/CN209387910U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759602A (en) * | 2021-09-07 | 2021-12-07 | 京东方科技集团股份有限公司 | Backlight module, display device and display system |
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