CN102679240A - Direct type LED (light emitting diode) backlight source module and liquid crystal display device - Google Patents
Direct type LED (light emitting diode) backlight source module and liquid crystal display device Download PDFInfo
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- CN102679240A CN102679240A CN2012100995608A CN201210099560A CN102679240A CN 102679240 A CN102679240 A CN 102679240A CN 2012100995608 A CN2012100995608 A CN 2012100995608A CN 201210099560 A CN201210099560 A CN 201210099560A CN 102679240 A CN102679240 A CN 102679240A
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- led light
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Abstract
The invention discloses a direct type LED (Light Emitting Diode) backlight source module and a liquid crystal display device. The direct type LED backlight source module comprises at least one LED light emitting bar, at least one LED light emitting source arranged on the LED light emitting bar, a reflecting device, a diffusing plate, at least one diffusing plate supporting structure, a backboard, a frame and a set of optical membranes. The backboard and the frame accommodates the reflecting device, the LED light emitting bar, the LED light emitting source, the diffusing plate supporting structure, the diffusing plate and the set of optical membranes. The reflecting device is provided with a reflecting surface opposite to an incident surface of the diffusing plate. An outgoing surface of the LED light emitting source faces to the incident surface of the diffusing plate. The reflecting device is provided with a hole matched with the LED light emitting source at a position corresponding to the LED light emitting source. The backboard is provided with a groove for accommodating the LED light emitting bar at a position corresponding to the LED light emitting bar. According to the direct type LED backlight source module provided by the invention, the assembling process is simplified and the cost is lowered.
Description
Technical field
The present invention relates to a kind of backlight source module, particularly a kind of direct LED backlight module and liquid crystal indicator.
Background technology
Liquid crystal indicator has light weight, thin thickness, low in energy consumption and characteristics that radiation is little, has been widely used in fields such as information technology, multimedia technology, becomes the main flow of various display unit.Because liquid crystal panel itself is not luminous, needing backlight source module is that it provides light source.Generally speaking, the backlight source module light source has cathode fluorescent tube (CCFL) and light emitting diode (LED).The cathode fluorescent tube mercury that contains hazardous substance is undoubtedly a kind of injury for environmental protection, and the cathode fluorescent tube life-span is short, directly influences the service life of liquid crystal indicator.That light emitting diode has is pollution-free, long-life, vibration resistance, shock resistance and free of contamination characteristics.
Therefore, adopting the light source source of LED as backlight, is the inexorable trend of liquid crystal indicator development.LED generally uses on undersized LCDs, like mobile phone, PDA, notebook computer etc.Because the LED continuous advancement in technology, make the brightness of LED that big lifting arranged in recent years, the main alternative of large scale liquid crystal backlight of display device light source during LED has become, LED as the demand of liquid crystal indicator back light in continuous increase.
LED is as the light source source of backlight source of liquid crystal display apparatus; In middle large scale liquid crystal display unit; Arrangement is in the one or both sides of liquid crystal indicator back light unit and the LED of above layout some, perhaps in the large scale liquid crystal display unit, is arranged to straight-down negative.
Fig. 1 is the structural representation that a kind of prior art comprises the liquid crystal indicator of direct LED backlight module.This device comprises a backboard 10, first reflection unit 20, LED light-emitting section 30, LED light emitting source 40, second reflection unit 50, diffuser plate supporting construction 60, a diffuser plate 70, one group of blooming piece 80, framework 90, preceding frame 95 and liquid crystal display 100.Backboard 10, framework 90 and preceding frame 95 are accommodated first reflection unit 20, LED light-emitting section 30, LED light emitting source 40, second reflection unit 50, diffuser plate supporting construction 60, diffuser plate 70, one group of blooming piece 80 and liquid crystal display 100.LED light-emitting section 30 is arranged on first reflection unit 20, and second reflection unit 50 is arranged on the light-emitting section 30.
Summary of the invention
Goal of the invention: the problem and shortage to above-mentioned prior art exists, the purpose of this invention is to provide a kind of direct LED backlight module and liquid crystal indicator, simplified assembling process reduces cost.
Technical scheme: for realizing the foregoing invention purpose; First kind of technical scheme that the present invention adopts is a kind of direct LED backlight module; Comprise at least one LED light-emitting section, be located at least one LED light emitting source, a reflection unit, a diffuser plate, at least one diffuser plate supporting construction, a backboard, a framework and one group of blooming piece on the LED light-emitting section; Said backboard and framework are accommodated reflection unit, LED light-emitting section, LED light emitting source, diffuser plate supporting construction, diffuser plate and one group of blooming piece; Said reflection unit has the reflecting surface that is oppositely arranged with the incidence surface of diffuser plate; The exiting surface of LED light emitting source is towards the incidence surface of diffuser plate; Reflection unit is being provided with the hole that is complementary with this LED light emitting source with LED light emitting source corresponding section, is provided with the groove of accommodating said LED light-emitting section with LED light-emitting section corresponding position on the backboard.
The exiting surface of said LED light emitting source can be between the incidence surface of the reflecting surface of reflection unit and diffuser plate.
For the LED light-emitting section is accurately located in groove, can be provided with the mistake proofing location structure in the said groove, said LED light-emitting section is provided with and the corresponding opening of said mistake proofing location structure shape.The shape of said mistake proofing location structure and opening can be the combination of circular arc, semicircular arc, rectangle, triangle, one or more shapes in trapezoidal.
The fixed form of said LED light-emitting section and backboard can be screw and fixes or paste fixing or be fixed etc.
The shape in said hole can be polygon and other shapes such as circle or rectangle.
Second kind of technical scheme that the present invention adopts is a kind of liquid crystal indicator, comprises described direct LED backlight module and liquid crystal display, and said backboard and framework are accommodated this liquid crystal display.
Beneficial effect: the present invention has improved the heat dispersion of LED light-emitting section in the existing direct LED backlight module and LED light emitting source; Save the reflection unit that improves the light source light utilization rate in the existing direct LED backlight module on the LED light-emitting section; Simplified assembling process reduces cost.
Description of drawings
Fig. 1 is the structural representation that prior art comprises the liquid crystal indicator of direct LED backlight module;
Fig. 2 is the structural representation of direct LED backlight module of the present invention;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the exploded view of Fig. 2;
Fig. 5 is the enlarged drawing of A portion among Fig. 4;
Fig. 6 is the enlarged drawing of B portion among Fig. 4.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment; Further illustrate the present invention; Should understand these embodiment only be used to the present invention is described and be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Like Fig. 2, Fig. 3 and shown in Figure 4; It is a kind of embodiment of direct LED backlight module of the present invention; This backlight source module comprises 4 (at least one; Present embodiment is 4) LED light-emitting section 115, be located at 128,2 of on each LED light-emitting section 115 9 (at least one, present embodiment is 9) LED light emitting sources 118, a reflection unit 112, a diffuser plate (at least one, present embodiment is 2) diffuser plate supporting construction 120, a backboard 110, framework 130 and one group of blooming piece 125; This reflection unit 112 has a reflecting surface; The reflecting surface of reflection unit 112 is arranged at the incidence surface side of diffuser plate 128, and is oppositely arranged with the diffuser plate incidence surface, and LED light emitting source 118 is oppositely arranged with diffuser plate 128; LED light emitting source light-emitting area is towards the incidence surface of diffuser plate 128; Reflection unit 112 is provided with the circular hole 135 (shape in hole is not limited to circle, can also be polygon or other shapes such as rectangle) that is complementary with LED light emitting source 118 corresponding sections, is provided with the groove 122 of accommodating LED light-emitting section 115 with LED light-emitting section 115 corresponding positions on the backboard 110.
As shown in Figure 5; Accommodate on the backboard 110 in the groove 122 of LED light-emitting section 115 and be provided with semicircular arc mistake proofing location structure 150; Certainly, the shape of this mistake proofing location structure is not limited to semicircular arc, can also be the combination of circular arc, rectangle, triangle, trapezoidal and more than one shapes.
As shown in Figure 6, the LED light-emitting section is provided with the opening 151 that mistake proofing location structure 150 is complementary in the groove 122 on shape and the backboard 110, makes the LED light-emitting section in groove, accurately to locate.
Direct LED backlight module of the present invention can be separately as light source applications, and a liquid crystal display also can be installed becomes liquid crystal indicator.
Claims (7)
1. direct LED backlight module; Comprise at least one LED light-emitting section, be located at least one LED light emitting source, a reflection unit, a diffuser plate, at least one diffuser plate supporting construction, a backboard, a framework and one group of blooming piece on the LED light-emitting section; Said backboard and framework are accommodated reflection unit, LED light-emitting section, LED light emitting source, diffuser plate supporting construction, diffuser plate and one group of blooming piece; Said reflection unit has the reflecting surface that is oppositely arranged with the incidence surface of diffuser plate; The exiting surface of LED light emitting source is towards the incidence surface of diffuser plate; Reflection unit is being provided with the hole that is complementary with this LED light emitting source with LED light emitting source corresponding section, is provided with the groove of accommodating said LED light-emitting section with LED light-emitting section corresponding position on the backboard.
2. according to the said direct LED backlight module of claim 1, it is characterized in that: the exiting surface of said LED light emitting source is between the incidence surface of the reflecting surface of reflection unit and diffuser plate.
3. according to the said direct LED backlight module of claim 1, it is characterized in that: be provided with the mistake proofing location structure in the said groove, said LED light-emitting section is provided with and the corresponding opening of said mistake proofing location structure shape.
4. according to the said direct LED backlight module of claim 3, it is characterized in that: the combination that is shaped as circular arc, semicircular arc, rectangle, triangle, one or more shapes in trapezoidal of said mistake proofing location structure and opening.
5. according to the said direct LED backlight module of claim 1, it is characterized in that: the fixed form of said LED light-emitting section and backboard is that screw is fixed or pasted fixing or be fixed.
6. according to the said direct LED backlight module of claim 1, it is characterized in that: said hole be shaped as circle or polygon.
7. a liquid crystal indicator comprises that said backboard and framework are accommodated this liquid crystal display like claim 1 to 6 each described direct LED backlight module and liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100995608A CN102679240A (en) | 2012-04-05 | 2012-04-05 | Direct type LED (light emitting diode) backlight source module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100995608A CN102679240A (en) | 2012-04-05 | 2012-04-05 | Direct type LED (light emitting diode) backlight source module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102679240A true CN102679240A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100995608A Pending CN102679240A (en) | 2012-04-05 | 2012-04-05 | Direct type LED (light emitting diode) backlight source module and liquid crystal display device |
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| CN (1) | CN102679240A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697379A (en) * | 2013-12-24 | 2014-04-02 | 南京中电熊猫液晶显示科技有限公司 | Direct type LED (Light Emitting Diode) backlight module |
| CN104977752A (en) * | 2014-04-07 | 2015-10-14 | 三星显示有限公司 | Display apparatus |
| CN106249475A (en) * | 2015-06-12 | 2016-12-21 | 三星显示有限公司 | Back light unit and the display device including this back light unit |
| CN107728379A (en) * | 2017-11-10 | 2018-02-23 | 欧浦登（顺昌）光学有限公司 | A kind of ultra-thin direct-type backlight flat panel Liquid Crystal display module |
| CN113917724A (en) * | 2020-07-09 | 2022-01-11 | 夏普株式会社 | Liquid crystal display module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201083924Y (en) * | 2007-06-22 | 2008-07-09 | 群康科技(深圳)有限公司 | Backlight module group and LCD |
| CN201706247U (en) * | 2010-04-19 | 2011-01-12 | 庄胜义 | Light emitting diode lamp |
| CN102253512A (en) * | 2011-08-15 | 2011-11-23 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal module |
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2012
- 2012-04-05 CN CN2012100995608A patent/CN102679240A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201083924Y (en) * | 2007-06-22 | 2008-07-09 | 群康科技(深圳)有限公司 | Backlight module group and LCD |
| CN201706247U (en) * | 2010-04-19 | 2011-01-12 | 庄胜义 | Light emitting diode lamp |
| CN102253512A (en) * | 2011-08-15 | 2011-11-23 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal module |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697379A (en) * | 2013-12-24 | 2014-04-02 | 南京中电熊猫液晶显示科技有限公司 | Direct type LED (Light Emitting Diode) backlight module |
| CN103697379B (en) * | 2013-12-24 | 2016-03-16 | 南京中电熊猫液晶显示科技有限公司 | A kind of direct-light type LED backlight module |
| CN104977752A (en) * | 2014-04-07 | 2015-10-14 | 三星显示有限公司 | Display apparatus |
| CN111276054A (en) * | 2014-04-07 | 2020-06-12 | 三星显示有限公司 | Display device |
| CN106249475A (en) * | 2015-06-12 | 2016-12-21 | 三星显示有限公司 | Back light unit and the display device including this back light unit |
| CN107728379A (en) * | 2017-11-10 | 2018-02-23 | 欧浦登（顺昌）光学有限公司 | A kind of ultra-thin direct-type backlight flat panel Liquid Crystal display module |
| CN107728379B (en) * | 2017-11-10 | 2023-12-22 | 欧浦登（顺昌）光学有限公司 | Ultrathin direct type backlight flat-panel liquid crystal display module |
| CN113917724A (en) * | 2020-07-09 | 2022-01-11 | 夏普株式会社 | Liquid crystal display module |
| CN113917724B (en) * | 2020-07-09 | 2024-02-06 | 夏普株式会社 | Liquid crystal display module |
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Application publication date: 20120919 |