CN202101038U - Temperature balancing device and backlight module employing same - Google Patents
Temperature balancing device and backlight module employing same Download PDFInfo
- Publication number
- CN202101038U CN202101038U CN2011200821908U CN201120082190U CN202101038U CN 202101038 U CN202101038 U CN 202101038U CN 2011200821908 U CN2011200821908 U CN 2011200821908U CN 201120082190 U CN201120082190 U CN 201120082190U CN 202101038 U CN202101038 U CN 202101038U
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- Prior art keywords
- temperature
- bascule
- backboard
- heating
- module backlight
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Abstract
The utility model relates to a temperature balancing device for an electroluminescence light source, in particular to a temperature balancing device for a liquid crystal display and a backlight module employing the temperature balancing device. The temperature balancing device comprises a plane heating component and a controllable supply component, wherein the plane heating component is used for providing heat, the controllable supply component is used for supplying energy to the plane heating component, and the plane heating component is directly connected with the controllable supply component through a transmission line. By the aid of the technical scheme, the temperature balancing device applied to the liquid crystal display is simple in systematic structure, high in stability and wide in application range and cannot affect luminance of the module.
Description
Technical field
The utility model relates to a kind of temperature bascule that is used for electroluminescent light source, more particularly, is meant a kind of module backlight that is used for the temperature bascule of LCD and adopts this temperature bascule.
Background technology
In the prior art, side view LED LCD TV backlight is distributed in around the liquid crystal display because of LED lamp bar, and distribute heat is very big when switching on because of LED; If long-time energising; Will certainly cause liquid crystal display and the blooming piece middle part and the inequality of being heated all around, it is different to expand, and has influence on final image quality.This problem is particularly serious in large scale LED TV, and based on this, it is imperative to design a rational temperature balance sysmte.
To this problem; The patent No. is CN101505559, and the Chinese invention patent that name is called " temperature control system of module backlight " just discloses a kind of temperature control system of module backlight, and its quantity of light source that is applied to directly to increase back light unit will promote the module backlight of LCD brightness; Control circuit is surveyed through the resistance value of at least one thermistor; With the collocation of pulse width modulation, come the in good time luminosity that downgrades illuminating module, the temperature of back light unit is gathered way ease up; The heat of avoiding illuminating module to produce continues accumulation, causes whole associated electronic components can't move or the shortening in service life.But this system architecture is complicated, and stability is not strong, and range of application has limitation, and can influence the module luminosity in the running.
The utility model content
Therefore; The defective that prior art had based on the representative of foregoing invention patent; The goal of the invention of the utility model is to provide a kind of system architecture simple; Stability is strong, applied range, and can not influence a kind of temperature bascule that is applied in the LCD of module luminosity in the running;
Another goal of the invention of the utility model is to provide a kind of module backlight that adopts the said temperature bascule.
In order to realize above-mentioned goal of the invention, the utility model adopts following technical scheme:
A kind of temperature bascule; Described temperature bascule comprises the plane heating parts that are used to provide heat energy; And be the controlled supply part that these plane heating parts provide the energy, described plane heating parts directly are connected through transmission line with described controlled supply part.The plane heating parts will be converted into heat energy by the electric energy that obtains in the controlled supply part and produce heat.
Further; Described plane heating parts have hierarchy; Comprise that one deck at least is used to the separation layer that the zone of heating of heat energy is provided and is arranged on these zone of heating both sides; This separation layer is a zone of heating and be heated target certain buffer action is provided, and prevents that zone of heating from causing that to be heated target overheated and cause the loss with the life-span with being heated directly to contact between the target.In the utility model, described zone of heating is the heating plate with planar structure, and the separation layer of these heating plate both sides is the wrap film that is wrapped on this heating plate.
More specifically, described heating plate forms by closely arranging after the sheet metal bending, and the two ends of described sheet metal all directly are connected with controlled supply part through the lead as described transmission line.Described sheet metal preferably adopts aluminium or copper.Certainly, this sheet metal can adopt has the component alloy that has identical heating power character with aluminium or copper, has not here just enumerated one by one.
Carry out the effect of temperature balance in order to control the utility model temperature bascule accurately to being heated target; Described temperature bascule also comprises the temperature exploring block that is used to survey the heating target temperature; This temperature exploring block is communicated with described controlled supply part; Above-mentioned temperature exploring block feeds back to controlled supply part with institute's temperature detected parameter, further controls the heats of described plane heating parts through controlled supply part.
The utility model provides a kind of module backlight that adopts above-mentioned temperature bascule, and described module backlight adopts the setting of sidelight source structure, in order to realize the effect of this temperature bascule, it is arranged between the backboard and reflector of said module backlight.
More specifically, the geometric center of the heater block of described temperature bascule overlaps with the geometric center of described backboard, and the edge of the heater block of described temperature bascule does not exceed the edge of said backboard.Guarantee that the backboard module can not cause defectives such as the excessive so that LCDs of installation volume is blocked up owing to increase is provided with the temperature bascule.
Preferably; The geometry of the heater block of described temperature bascule is identical with the geometry of described backboard or similar; Here said similar similar on the geometric meaning of also being meant, and the area of the heater block of described temperature bascule is less than the area of said backboard.
Further preferably, the area of described heater block is not more than 30% of described backboard area.Simultaneously, described heater block edge has identical spacing with the edge of said backboard.
Need to prove also that in addition the thickness of the heater block in the utility model should be enough little, guarantee that the thickness after the entire aphototropism mould installation can not cause blocked up owing to this heater block is installed.
Through adopting above-mentioned technical scheme, the utility model provides a kind of system architecture simple, and stability is strong, applied range, and can not influence a kind of temperature bascule that is applied in the LCD of module luminosity in the running; In addition, the utility model also provides a kind of module backlight that adopts the said temperature bascule.
Description of drawings
What show among Fig. 1 is the overall structure sketch map of the temperature bascule of the utility model;
What show among Fig. 2 is the concrete structure sketch map of an embodiment of the temperature bascule heating plate of the utility model;
What show among Fig. 3 is the concrete structure sketch map of another embodiment of the temperature bascule heating plate of the utility model;
What show among Fig. 4 is the sketch map of temperature bascule in the backboard module of the utility model;
What show among Fig. 5 is the sketch map of the temperature bascule of the utility model in backboard Plane Installation position.
Each label proxy component title explanation is as follows in the accompanying drawing:
1 temperature bascule, 11 heating plates, 12 leads, 2 backboards, 3 reflectors
The specific embodiment
The utility model is to provide a kind of system architecture simple, and stability is strong, applied range, and can not influence a kind of temperature bascule that is applied in the LCD of module luminosity in the running; In addition, the utility model also provides a kind of module backlight that adopts the said temperature bascule.Below in conjunction with Figure of description the specific embodiment of the utility model is carried out detailed explanation.
What show among Fig. 1 is the overall structure sketch map of the temperature bascule of the utility model; The temperature bascule that is provided in the present embodiment comprises the plane heating parts that are used to provide heat energy; And for this heater block provides the controlled supply part of the energy, described plane heating parts directly are connected through transmission line with described controlled supply part.The plane heating parts will be converted into heat energy by the electric energy that obtains in the controlled supply part and produce heat.And this plane heating parts have hierarchy; Comprise that one deck at least is used to the separation layer that the zone of heating of heat energy is provided and is arranged on these zone of heating both sides; This separation layer is a zone of heating and be heated target certain buffer action is provided, and prevents that zone of heating is heated the target loss in overheated so that service life with being heated directly to contact between the target to cause.In the specific embodiment in Fig. 1, described zone of heating is the heating plate 11 with planar structure, and the separation layer of these heating plate 11 both sides is the wrap film that is wrapped on this heating plate.Be provided with lead 12 from this heating plate bottom in addition, this lead 12 is as the transmission line between controlled supply part and the said heating plate 11.
The concrete structure sketch map of an embodiment that has then shown the temperature bascule heating plate 11 of the utility model among Fig. 2.In order to give full play to the heat in the heating plate 11; Adopt in the present embodiment described heating plate 11 is formed by closely arranging after the bending of sheet metal, described sheet metal bends in the horizontal repeatedly and the two ends of this sheet metal are provided with the contact jaw that is connected with lead as described transmission line.Described sheet metal preferably adopts aluminium or copper.Certainly, this sheet metal can adopt has the component alloy that has identical heating power character with copper or aluminium, has not here just enumerated one by one.
What then show among Fig. 3 is the concrete structure sketch map of another embodiment of the temperature bascule heating plate of the utility model.Similar with the specific embodiment of the utility model that is shown among Fig. 2; In order to give full play to the heat in the heating plate 11; Adopt in the present embodiment described heating plate 11 closely arranged by a sheet metal and form; What but they were different with the embodiment of the utility model of showing among Fig. 2 is; Described sheet metal is not to bend repeatedly in the horizontal, but in the vertical repeatedly after the revolution proper alignment form, and the two ends of this sheet metal all likewise are provided with the contact jaw that is connected with lead as described transmission line.Described sheet metal preferably adopts aluminium or copper.Certainly, this sheet metal can adopt has the component alloy that has identical heating power character with above-mentioned metal, has not here just enumerated one by one.
Though in the Figure of description of the utility model, specifically do not show; But carry out the effect of temperature balance to being heated target in order to control the utility model temperature bascule accurately; Described temperature bascule also comprises the temperature exploring block that is used to survey the heating target temperature; This temperature exploring block is communicated with described controlled supply part; Above-mentioned temperature exploring block feeds back to controlled supply part with institute's temperature detected parameter, further controls the heats of described plane heating parts through controlled supply part.
As shown in Figure 4 in addition is a kind of module backlight that adopts above-mentioned temperature bascule that the utility model provides; Described module backlight adopts the sidelight source; In order to realize the effect of this temperature bascule; It is arranged between the backboard 2 and reflector 3 of said module backlight, can guarantees in a basic balance to guarantee the temperature in the backlight assembly course of work.
Like what show among Fig. 5 is the sketch map of the temperature bascule of the utility model in backboard Plane Installation position.Particularly, the geometric center of the heater block of described temperature bascule overlaps with the geometric center of described backboard 2, and the edge of the heating plate 11 of described temperature bascule does not exceed the edge of said backboard 2.Guarantee that the backboard module can not cause that installation volume is excessive to make defectives such as whole LCD is blocked up owing to increase is provided with the temperature bascule.
In the present embodiment, the geometry of the heating plate 11 of described temperature bascule is identical with the geometry of described backboard 2, and the area of the heating plate 11 of described temperature bascule is less than the area of said backboard 2.
And among the embodiment that in Fig. 5, shows, the area of described heating plate 11 is 30% of described backboard 2 areas, is used for the central area of backboard module is heated, and guarantees the balance of entire aphototropism mould temperature in the time at certain threshold values.Simultaneously, the edge of described heating plate 11 has identical spacing with the edge of said backboard 2.
Need to prove also that in addition the thickness of the heater block in the utility model should be enough little, guarantee that the thickness after the entire aphototropism mould installation can not cause blocked up owing to this heater block is installed.
Through adopting above-mentioned technical scheme, the utility model provides a kind of system architecture simple, and stability is strong, applied range, and can not influence a kind of temperature bascule that is applied in the LCD of module luminosity in the running; In addition, the utility model also provides a kind of module backlight that adopts the said temperature bascule.
The protection domain of the utility model is not limited to disclosed specific embodiment in the above-mentioned specific embodiment, as long as but the combination of satisfying technical characterictic in the utility model claim just fallen within the protection domain of the utility model.
Claims (10)
1. temperature bascule; It is characterized in that; Described temperature bascule comprises the plane heating parts that are used to provide heat energy; And be the controlled supply part that these plane heating parts provide the energy, described plane heating parts directly are connected through transmission line with described controlled supply part.
2. a kind of temperature bascule according to claim 1; It is characterized in that; Described plane heating parts have hierarchy; Comprise that one deck at least is used to the separation layer that the zone of heating of heat energy is provided and is arranged on these zone of heating both sides, described zone of heating is the heating plate with planar structure, and the separation layer of these heating plate both sides is the wrap film that is wrapped on this heating plate.
3. a kind of temperature bascule according to claim 2; It is characterized in that; Described heating plate forms by closely arranging after the sheet metal bending, and the two ends of described sheet metal all directly are connected with controlled supply part through the lead as described transmission line.
4. a kind of temperature bascule according to claim 3 is characterized in that, described sheet metal adopts aluminium or copper.
5. a kind of temperature bascule according to claim 1 is characterized in that described temperature bascule also comprises the temperature exploring block that is used to survey the heating target temperature, and this temperature exploring block is communicated with described controlled supply part.
6. adopt the module backlight of the described a kind of temperature bascule of claim 1-5, it is characterized in that, described module backlight adopts the sidelight source, and described temperature bascule is arranged between the backboard and reflector of said module backlight.
7. module backlight according to claim 6; It is characterized in that; The geometric center of the heater block of described temperature bascule overlaps with the geometric center of described backboard, and the edge of the heater block of described temperature bascule does not exceed the edge of said backboard.
8. module backlight according to claim 7; It is characterized in that; The geometry of the heater block of described temperature bascule is identical with the geometry of described backboard, and the area of the heater block of described temperature bascule is less than the area of said backboard.
9. according to claim 7 or 8 described modules backlight, it is characterized in that the area of described heater block is not more than 30% of described backboard area.
10. module backlight according to claim 9 is characterized in that, described heater block edge has identical spacing with the edge of said backboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200821908U CN202101038U (en) | 2011-03-25 | 2011-03-25 | Temperature balancing device and backlight module employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200821908U CN202101038U (en) | 2011-03-25 | 2011-03-25 | Temperature balancing device and backlight module employing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202101038U true CN202101038U (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200821908U Expired - Lifetime CN202101038U (en) | 2011-03-25 | 2011-03-25 | Temperature balancing device and backlight module employing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202101038U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889525A (en) * | 2012-10-18 | 2013-01-23 | 深圳市华星光电技术有限公司 | Liquid crystal module and liquid crystal display thereof |
| WO2014047994A1 (en) * | 2012-09-27 | 2014-04-03 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| US9016920B2 (en) | 2012-09-27 | 2015-04-28 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Backlight module and LCD device |
-
2011
- 2011-03-25 CN CN2011200821908U patent/CN202101038U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014047994A1 (en) * | 2012-09-27 | 2014-04-03 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| US9016920B2 (en) | 2012-09-27 | 2015-04-28 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Backlight module and LCD device |
| CN102889525A (en) * | 2012-10-18 | 2013-01-23 | 深圳市华星光电技术有限公司 | Liquid crystal module and liquid crystal display thereof |
| WO2014059694A1 (en) * | 2012-10-18 | 2014-04-24 | 深圳市华星光电技术有限公司 | Liquid crystal module and liquid crystal display thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |