CN106609957B - Backlight module and display equipment with the backlight module - Google Patents
Backlight module and display equipment with the backlight module Download PDFInfo
- Publication number
- CN106609957B CN106609957B CN201610237863.XA CN201610237863A CN106609957B CN 106609957 B CN106609957 B CN 106609957B CN 201610237863 A CN201610237863 A CN 201610237863A CN 106609957 B CN106609957 B CN 106609957B
- Authority
- CN
- China
- Prior art keywords
- cover unit
- light source
- radiator
- backlight module
- guide plate
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/15—Thermal insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Abstract
The present invention relates to backlight module and the display equipment with the backlight module, the backlight module include frame, radiator, light source and light guide plate.The frame includes the back-cover unit for defining air zone, the radiator is located at the lower section of the air zone of the back-cover unit, the light source is directly contacted with the radiator, the light guide plate and the light source are correspondingly arranged to receive the light that the light source is issued, and the radiator is located between the light guide plate and the back-cover unit.Air zone is defined using the back-cover unit, and the radiator is arranged in the lower section of the air zone, so that heat caused by the light source to be limited in the region of the back-cover unit being located at below the air zone, to make the air zone form Design on thermal insulation, the phenomenon that light source generation, conduction to the heat at the position of the top of the back-cover unit is greatly decreased, the back-cover unit is effectively prevent to generate bending because of heat.
Description
Technical field
The present invention relates to light source and with the device of the light source, in particular to backlight module and showing with the backlight module
Show equipment.
Background technique
Backlight module is widely used for making various flat-panel screens, and the flat-panel screens of thin type is gradually
As trend.Backlight module generally includes the structures such as light source, backboard and light guide plate, more tends to thin type design in overall structure
When, backboard is highly susceptible to influence hot caused by light source, and generates the phenomenon that bending (bending).
The current most common practice is setting thermally conductive sheet, for conducting heat caused by light source to accelerate to radiate.
However above-mentioned design can not still effectively improve backboard because bending phenomenon caused by heat.
Summary of the invention
Therefore, the object of the invention is that providing a kind of backlight mould for being effectively prevented backboard and generating bending because of heat
Group.
Then, backlight module of the invention includes frame, radiator, light source and light guide plate.The frame includes defining sky
The back-cover unit in gas area, the radiator are located at the lower section of the air zone of the back-cover unit, and the light source and the radiator are direct
Contact, the light guide plate and the light source are correspondingly arranged to receive the light that the light source is issued, and the radiator is located at the light guide plate
Between back-cover unit.
Another object of the present invention, which also resides in, provides a kind of backlight mould for being effectively prevented backboard and generating bending because of heat
Group.
Then, backlight module of the invention includes frame, radiator, light source and light guide plate.The frame includes defining sky
The back-cover unit in gas area, the radiator are located at the lower section of the air zone of the back-cover unit, which is positioned at the back of the frame
Cap unit, the light guide plate and the light source are correspondingly arranged to receive the light that the light source is issued, and the light guide plate has not higher than this
The top of back-cover unit.
Another object of the present invention is still to provide a kind of backlight mould for being effectively prevented backboard and generating bending because of heat
Group.
Then, backlight module of the invention includes frame, radiator, light source and light guide plate.The frame includes defining sky
The back-cover unit in gas area, the radiator are located at the lower section of the air zone of the back-cover unit, and have main body and from the main body
The protrusion of side protrusion, the light source are positioned at the back-cover unit of the frame, and the light guide plate and the light source are correspondingly arranged to receive
The light that the light source is issued, and supported by the protrusion of the radiator, thus separately with the main body of the radiator.
Effect of the invention is that: air zone is limited using the back-cover unit, and the radiator is arranged in the sky
The lower section in gas area, so that heat caused by the light source is limited at the region of the back-cover unit being located at below the air zone,
To make the air zone form Design on thermal insulation, light source generation, conduction to the position above the back-cover unit is greatly decreased
The heat at place, the phenomenon that effectivelying prevent the back-cover unit to generate bending because of heat.
Detailed description of the invention
Other features of the invention and effect will be clearly shown in the embodiment referring to attached drawing, in which:
Fig. 1 is the partial sectional view for illustrating the first embodiment of backlight module of the invention；
Fig. 2 is the main view for aiding in illustrating the first embodiment；
Fig. 3 is the three-dimensional cutaway view for illustrating the backlight module for being installed to display panel of the second embodiment of the present invention；
Fig. 4 is the three-dimensional cutaway view for aiding in illustrating the second embodiment, wherein light guide plate is omitted；
Fig. 5 is another three-dimensional cutaway view for aiding in illustrating the second embodiment；
Fig. 6 is another three-dimensional cutaway view for aiding in illustrating the second embodiment, wherein light guide plate is omitted；And
Fig. 7 is the sectional perspective enlarged cross-sectional view for aiding in illustrating the second embodiment.
Specific embodiment
Before the present invention is described in detail, it shall be noted that in the following description content, similar component is with identical
Number is to indicate.
Refering to fig. 1 with Fig. 2, the first embodiment of backlight module 2 of the invention includes frame 3, is arranged on the frame 3
It light source 4 and is correspondingly arranged with the light source 4 to receive the light guide plate 5 for the light that the light source 4 is issued.
The frame 3 includes outline border 30, back-cover unit 300 and radiator 33.The back-cover unit 300 includes horizontally being arranged
In the substrate 31 on the outline border 30 and the backboard 32 being vertically disposed on the substrate 31.The radiator 33 from the substrate 31 to
Upper extension simultaneously directly contacts the backboard 32.
The light source 4 is arranged on the substrate 31 and directly contacts the radiator 33, and including spaced multiple hairs
Optical diode 41.The light guide plate 5 and the light source 4 are correspondingly arranged on the outline border 30 to receive the light that the light source 4 is issued, and
The top of the light guide plate 5 is not higher than the backboard 32, and is covered completely by the back-cover unit 300.It herein it should be particularly noted that, should
The emphasis of connection relationship and non-present invention between the structure of outline border 30 and the outline border 30 and the light guide plate 5, therefore not still further
It is painted and repeats.
The backboard 32 has bottom end 321, presumptive area 322 and horizontal wears groove 323, wherein bottom end 321 and the substrate 31 are straight
Contact, presumptive area 322 relative to the backboard 32 bottom end 321 between the backboard 32 vertical height H 1/3 to 1/4 it
Between, elongated horizontal wears groove 323 is formed at the presumptive area 322.The length of the horizontal wears groove 323 is at least the backboard 32
The 80% of horizontal length L.
The radiator 33 has the top being located at below 323 bottom end of wears groove, which is used to dissipate described
Heat caused by light emitting diode 41.In the present embodiment, which is located substantially in the presumptive area 322
Centre.
Herein it is noted that in the present embodiment, the light guide plate 5 along first direction D1 (such as: the backlight along Fig. 2
The up and down direction of mould group 2) it is aligned with the light source 4.The backboard 32 has the first segment for being located at horizontal 323 top of wears groove and is located at
The second segment of horizontal 323 lower section of wears groove, the first segment and second segment of the backboard 32 are integrally formed and surround the horizontal wears groove
323, and the first segment of the backboard 32 is aligned on first direction D1 with second segment.
Heat caused by the light emitting diode 41 is conducted via the substrate 31 and the radiator 33 to the backboard 32.Due to
The lower section of the horizontal wears groove 323 is arranged in the radiator 33, and therefore, heat caused by light emitting diode 41 is limited in the water
The lower section of flat wears groove 323.Preferably, the length of the horizontal wears groove 323 is at least the 80% of the horizontal length L of the backboard 32.It is real
On border, since the horizontal wears groove 323 is as completely cutting off hot air zone caused by the light emitting diode 41, therefore the light emitting diode
41 heat generated, that conduction is to the top of the backboard 32 are greatly decreased, to effectively prevent the backboard 32 because this shines
Heat caused by diode 41 and bend.
Refering to Fig. 3, the second embodiment and the first embodiment of backlight module 2 of the invention are substantially similar, and with display
Panel 6 constitutes display equipment together.
Simultaneously refering to Fig. 4 to Fig. 7, in this second embodiment, the substrate 31 of the back-cover unit 300 is omitted (such as Fig. 1 institute
Show), and the backboard 32' of the back-cover unit 300 includes the first noumenon 34 and the second ontology 35.The first noumenon 34 and this second
Ontology 35 all has space definition portion, and the space definition portion of the first noumenon 34 and the space definition portion of second ontology 35 are common
It defines between the first noumenon 34 and second ontology 35 using the space 36 as heat-insulated air zone (such as Fig. 6 institute
Show).Herein it is noted that in the present embodiment, the space definition portion of the first noumenon 34 and the space of second ontology 35
Define portion's (example on the second direction D2 perpendicular with first direction D1 (such as: the up and down direction of backlight module 2 in Fig. 6)
It such as: the front-rear direction of backlight module 2 in Fig. 6) is mutually aligned, wherein the light guide plate 5 and the light source 4 are on first direction D1
Alignment.In addition, the radiator 33 ' is between the light guide plate 5 and the second ontology 35 of the back-cover unit 300, and this is dissipated
The protrusion 332 that thermal 33 ' has main body 331 and protrudes from the main body 331 to the side far from second ontology 35.This is led
Tabula rasa 5 is supported by the protrusion 332 of the radiator 33 ', and separately with the main body of the radiator 33 ' 331.Therefore, i.e.,
The temperature of the radiator 33 ' itself is set to become very high because absorbing heat caused by the light emitting diode 41, but due to this
Radiator 33 ' contacts the light guide plate 5 via the protrusion 332, therefore only some thermal energy is transmitted to the light guide plate 5, from
And the light guide plate 5 overheating deforming due to the radiator 33 ' completely attaches to light guide plate 5 can't be made.The display panel 6 setting
In the side opposite with the back-cover unit 300 of the light guide plate 5.
Backlight module 2 of the invention and the display equipment utilization back-cover unit 300 with the backlight module 2 define air
Area, and the radiator 33 is arranged in the lower section of the air zone, so that heat caused by the light source 4 is limited in the back-cover
The region of unit 300 being located at below the air zone, to make the air zone form Design on thermal insulation, the light source 4 is greatly decreased
Heat at generate, conduction to the position of 300 top of back-cover unit, effectively prevents the back-cover unit 300 and generates because of heat
The phenomenon that bending.
The above description is only an embodiment of the present invention, cannot be limited the scope of implementation of the present invention with this, all according to this
Simple equivalent changes and modifications made by claims of invention and the content of specification all still fall within the invention patent institute
The range covered.
[symbol description]
2 backlight modules
3 frames
300 back-cover units
30 outline borders
31 substrates
32 backboards
32 ' backboards
321 bottom ends
322 presumptive areas
323 wears grooves
33 radiators
33 ' radiators
34 the first noumenons
35 second ontologies
36 spaces
4 light sources
41 light emitting diodes
5 light guide plates
6 display panels
L length
H height
D1 first direction
D2 second direction
Claims (12)
1. a kind of backlight module, includes:
Frame comprising define the back-cover unit of air zone, the back-cover unit includes the first noumenon；
Radiator is located at the lower section of the air zone of the back-cover unit；
Light source is directly contacted with the radiator；And
Light guide plate is correspondingly arranged to receive the light that the light source is issued with the light source, and the radiator is located at described
Between light guide plate and the back-cover unit；
Wherein, the light guide plate arranges along a first direction with the light source, and the first noumenon and the air zone be not along
It is same as the second direction arrangement of the first direction；
Wherein, the back-cover unit further includes the second ontology, and the air zone is between the first noumenon and second ontology
Between.
2. backlight module as described in claim 1, wherein the radiator is directly contacted with the back-cover unit.
3. a kind of display equipment, includes:
Backlight module as described in claim 1；And
The side opposite with the back-cover unit of the light guide plate is arranged in display panel.
4. a kind of backlight module, includes:
Frame comprising define the back-cover unit of air zone, the back-cover unit includes the first noumenon；
Radiator is located at the lower section of the air zone of the back-cover unit；
Light source is positioned at the back-cover unit of the frame；And
Light guide plate is correspondingly arranged the light issued to receive the light source with the light source, and has not higher than described
The top of back-cover unit；
Wherein, the light guide plate arranges along a first direction with the light source, and the first noumenon and the air zone be not along
It is same as the second direction arrangement of the first direction；
Wherein, the back-cover unit further includes the second ontology, and the first noumenon and second body defining are between described the
Air zone between one ontology and second ontology.
5. backlight module as claimed in claim 4, wherein the light source directly contacts the back-cover unit and heat dissipation dress
It sets, the radiator is between the light guide plate and the back-cover unit.
6. backlight module as claimed in claim 4, wherein the back-cover unit covers the light guide plate completely.
7. a kind of display equipment, includes:
Backlight module as claimed in claim 4；And
The side opposite with the back-cover unit of the light guide plate is arranged in display panel.
8. a kind of backlight module, includes:
Frame comprising define the back-cover unit of air zone；
Radiator is located at the lower section of the air zone of the back-cover unit, and has main body and from the side of the main body
The protrusion of protrusion；
Light source is positioned at the back-cover unit of the frame；And
Light guide plate is correspondingly arranged the light issued to receive the light source with the light source, and by the radiator
Protrusion support, thus separately with the main body of the radiator；
Wherein, the back-cover unit includes the first noumenon, and the light guide plate arranges along a first direction with the light source, and described
One ontology and the air zone are arranged along the second direction for being different from the first direction；
Wherein, the back-cover unit further includes the second ontology, and the first noumenon and second body defining are between described the
Air zone between one ontology and second ontology.
9. backlight module as claimed in claim 8, wherein the light source is directly contacted with the radiator.
10. backlight module as claimed in claim 8, wherein the radiator is directly contacted with the back-cover unit.
11. backlight module as claimed in claim 8, wherein the light guide plate and the light source are right in said first direction
It should be arranged, the first noumenon and second ontology define jointly in this second direction between the first noumenon and institute
State the air zone between the second ontology.
12. a kind of display equipment, includes:
Backlight module as claimed in claim 8；And
The side opposite with the back-cover unit of the light guide plate is arranged in display panel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/919,839 | 2015-10-22 | ||
| US14/919,839 US9581758B2 (en) | 2013-08-02 | 2015-10-22 | Backlight module and display device having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106609957A CN106609957A (en) | 2017-05-03 |
| CN106609957B true CN106609957B (en) | 2019-08-02 |
Family
ID=58614765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610237863.XA Active CN106609957B (en) | 2015-10-22 | 2016-04-15 | Backlight module and display equipment with the backlight module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106609957B (en) |
| TW (1) | TWI599826B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202546677U (en) * | 2012-02-17 | 2012-11-21 | 青岛海信电器股份有限公司 | Heat dissipation structure of LED lamp and liquid crystal module |
| CN202902039U (en) * | 2012-09-27 | 2013-04-24 | 青岛海尔电子有限公司 | A backlight module and a television |
| TW201506507A (en) * | 2013-08-02 | 2015-02-16 | Radiant Opto Electronics Corp | Backlight module |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI408461B (en) * | 2010-05-18 | 2013-09-11 | Young Lighting Technology Corp | Backlight module |
| CN102454967A (en) * | 2010-10-20 | 2012-05-16 | 苏州璨宇光学有限公司 | Back light module and heat radiating component |
| CN202082747U (en) * | 2011-05-26 | 2011-12-21 | 深圳市华星光电技术有限公司 | Display device and backlight module |
| CN102661550B (en) * | 2012-05-09 | 2014-06-25 | 深圳市华星光电技术有限公司 | Backlight module |
| CN102661556A (en) * | 2012-05-30 | 2012-09-12 | 深圳市华星光电技术有限公司 | Backlight module |
| CN102865503B (en) * | 2012-08-28 | 2015-09-30 | 深圳市华星光电技术有限公司 | Backlight module and heat abstractor |
-
2016
- 2016-04-15 CN CN201610237863.XA patent/CN106609957B/en active Active
- 2016-04-21 TW TW105112426A patent/TWI599826B/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202546677U (en) * | 2012-02-17 | 2012-11-21 | 青岛海信电器股份有限公司 | Heat dissipation structure of LED lamp and liquid crystal module |
| CN202902039U (en) * | 2012-09-27 | 2013-04-24 | 青岛海尔电子有限公司 | A backlight module and a television |
| TW201506507A (en) * | 2013-08-02 | 2015-02-16 | Radiant Opto Electronics Corp | Backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201715281A (en) | 2017-05-01 |
| TWI599826B (en) | 2017-09-21 |
| CN106609957A (en) | 2017-05-03 |
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