CN201138406Y - LED electric light source terminal display - Google Patents
LED electric light source terminal display Download PDFInfo
- Publication number
- CN201138406Y CN201138406Y CNU2007200364766U CN200720036476U CN201138406Y CN 201138406 Y CN201138406 Y CN 201138406Y CN U2007200364766 U CNU2007200364766 U CN U2007200364766U CN 200720036476 U CN200720036476 U CN 200720036476U CN 201138406 Y CN201138406 Y CN 201138406Y
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- CN
- China
- Prior art keywords
- guide plate
- light guide
- source terminal
- led
- light source
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an electric light source terminal display, in particular to an LED electric light source terminal display. The utility model includes a metal outer shell, a liquid crystal display panel, a light guide plate and a metal cover; the liquid crystal display panel is arranged in the metal outer shell; the utility model is characterized in that the liquid crystal display panel, the light guide plate and the metal cover are subsequently connected; the light guide plate is densely provided with light diffusion holes, with LED light bars arranged around; the inner surface of the metal cover connected with the light guide plate is provided with a brightness enhancement film. Compared with the prior art, the electric light source terminal display has the advantages of simple structure, small size, light weight, low cost, working stability of the complete machine, etc., and is widely applicable to fields, such as aviation, aerospace, airborne and vehicle instruments, etc.
Description
Technical field
The utility model relates to a kind of electric light source terminal display, particularly a kind of LED electric light source terminal display.
Background technology
Commercially available electric light source terminal display adopts fluorescent tube to make backlight mostly at present, illuminates LCD panel.The advantage of this display is: simple in structure, cost is low.Shortcoming is: under low ambient temperature, fluorescent tube need heat the ability operate as normal, and fluorescent tube work simultaneously is to be driven by INV high voltagehigh frequency inverter, can produce electromagnetic interference.
For overcoming the shortcoming of above-mentioned electric light source terminal display, the someone has proposed LED electric light source terminal display scheme.LED electric light source terminal display is made up of LCD panel, even tabula rasa, light guide plate, backlight and cover cap.LED on the backlight adopts array way to arrange, and the luminance brightness height is so in light conducts to the LCD panel process by light guide plate, must could provide light uniform backlight to LCD panel by even tabula rasa.The advantage of this LED electric light source terminal display is the direct driving LED luminotron of wide temperature, high brightness and low-voltage direct current, does not have electromagnetic radiation.But the shortcoming that exists is, the high heat that the LED-backlit source produces has increased the heat-dissipating space of complete machine, simultaneously provide under the condition of light source to LCD panel in the direct projection mode in the LED-backlit source, having point source of light shows on the LCD panel surface, picture quality when influencing LCD work, so need between LED-backlit source and LCD panel, be connected even tabula rasa, so both increased manufacturing cost, increased the thickness and the volume of complete machine again.
In sum, how to solve the existing in prior technology problem, become a great difficult problem that needs to be resolved hurrily in the current electric light source terminal display field.
Summary of the invention
The purpose of this utility model is to propose a kind of LED electric light source terminal display for the shortcoming that overcomes prior art.The utility model not only has the advantage of existing LED electric light source terminal display, and simple in structure, volume is little, in light weight and perfect heat-dissipating.
Scheme of the present utility model is achieved in that the LED electric light source terminal display that the utility model proposes, it comprises metal shell, LCD panel, light guide plate, cover of meter hood, LCD panel places in the metal shell, it is characterized in that LCD panel, light guide plate, cover of meter hood link successively, be provided with densely covered light diffusion hole on the light guide plate, be provided with LED lamp bar on the side wall surface of light guide plate upper and lower, left and right, the cover of meter hood interior mask surface that links with light guide plate is provided with bright enhancement film.The principle of work of the utility model electric light source conduction is: under the driving of external power supply, by the LED lamp bar that is arranged on the side wall surface of light guide plate upper and lower, left and right, its LED sidelight source is conducted from the side of light guide plate to the light guide plate that is provided with the light diffusion hole that gathers, be converted to the LED-backlit source through light guide plate, to illuminate LCD panel.Be arranged on the light diffusion hole performance of gathering on the light guide plate is converted to LED sidelight source uniform LED-backlit source through light guide plate effect, the bright enhancement film of cover of meter hood is by reflective refraction, play the effect that strengthens the LED-backlit source equally, cover of meter hood can absorb the heat that LED lamp bar is distributed simultaneously, has guaranteed the operate as normal of LED electric light source terminal display.
The utility model compared with prior art has following significant advantage: the one, and simple in structure.Because of having saved even tabula rasa and source plate backlight, its thickness, volume and weight all reduce to some extent.The 2nd, perfect heat-dissipating.Because of the coordination of LED lamp strip unit be changed to light guide plate around side wall surface, both reduced the direct heat radiation of LCD panel, help again being absorbed heat by cover of meter hood.The 3rd, good stability.Be converted to the LED-backlit source by LED sidelight source, light is evenly soft, and LCD work is not produced any negative effect.The 4th, low cost of manufacture.Owing to saved the part photocon, make manufacturing process simple, manufacturing cost reduces.The utility model can be widely used in fields such as Aeronautics and Astronautics, airborne and vehicle-mounted instrument instrument.
Concrete structure of the present utility model is provided by the following drawings and embodiment.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model structural representation A-A cut-open view.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
In conjunction with Fig. 1 and Fig. 2, be example to make 6.4 inches LED electric light source terminal displays.The utility model is made up of metal shell (1), LCD panel (3), light guide plate (4), LED lamp bar (2), cover of meter hood (7).The specification that LCD panel (3) is selected for use is resolution 640X480, places in the metal shell (1) of aluminium alloy.Light guide plate (4) selects for use the high transmission rate poly (methyl methacrylate) plate to make, thickness of slab 5mm, adopt the position engraving light diffusion hole array of laser engraving technology according to LED lamp bar (2) layout on light guide plate (4) surface, form the light diffusion hole (5) that gathers, the effect of light diffusion hole (5) is to convert the LED-backlit source that can evenly be refracted to LCD panel (3) back side to being arranged on the sidelight source that the LED lamp bar (2) on light guide plate (4) side wall surface produced, LED lamp bar (2) is to be combined by LED luminotron and PCB aluminium base, utilize the aluminium base good heat-conducting, can immediately LED lamp bar (2) be gone up the heat that produces distributes, to avoid the LED luminotron to burn, prolonged the serviceable life of LED lamp bar (2) owing to temperature is too high.Cover of meter hood (7) selects for use 0.5mm corrosion resistant plate or aluminium alloy plate to make, cover of meter hood (7) interior mask surface is provided with bright enhancement film (6), bright enhancement film (6) is made by acrylic materials, the light that is refracted to bright enhancement film (6) by light diffusion hole (5) is reflexed to again on the light guide plate (4), guaranteed the intensity of light guide plate (4) light.Simultaneously, cover of meter hood (7) can be dispersed into the heat that LED lamp bar (2) is produced as early as possible and go in the atmosphere, has so just formed a complete heat radiation system, for the long-time stable work of LED electric light source terminal display provides assurance.The utility model has been obtained satisfied practical function through validation trial.
Claims (5)
1, a kind of electric light source terminal display, particularly a kind of LED electric light source terminal display, it comprises metal shell (1), LCD panel (3), light guide plate (4), cover of meter hood (7), LCD panel (3) places in the metal shell (1), it is characterized in that LCD panel (3), light guide plate (4), cover of meter hood (7) links successively, be provided with densely covered light diffusion hole (5) on the light guide plate (4), on the light guide plate (4), down, a left side, be provided with LED lamp bar (2) on the right side wall surface, cover of meter hood (7) interior mask surface that links with light guide plate (4) is provided with bright enhancement film (6).
2, display according to claim 1 is characterized in that light guide plate (4) made by the poly (methyl methacrylate) plate of high transmission rate.
3, display according to claim 1 and 2 is characterized in that LED lamp bar (2) is combined by LED luminotron and aluminium base.
4, display according to claim 1 and 2 is characterized in that the bright enhancement film (6) that is provided with on cover of meter hood (7) interior mask surface made by acrylic materials.
5, display according to claim 3 is characterized in that the bright enhancement film (6) that is provided with on cover of meter hood (7) interior mask surface made by acrylic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200364766U CN201138406Y (en) | 2007-03-28 | 2007-03-28 | LED electric light source terminal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200364766U CN201138406Y (en) | 2007-03-28 | 2007-03-28 | LED electric light source terminal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138406Y true CN201138406Y (en) | 2008-10-22 |
Family
ID=40039090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200364766U Expired - Fee Related CN201138406Y (en) | 2007-03-28 | 2007-03-28 | LED electric light source terminal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138406Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121585A (en) * | 2010-12-13 | 2011-07-13 | 张丽红 | LED soft light flat-panel illuminating and displaying lamp taking LED area light source light bar as light source |
| US9798061B2 (en) | 2012-07-26 | 2017-10-24 | Young Lighting Technology Inc. | Hybrid light guide plate and display device |
-
2007
- 2007-03-28 CN CNU2007200364766U patent/CN201138406Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121585A (en) * | 2010-12-13 | 2011-07-13 | 张丽红 | LED soft light flat-panel illuminating and displaying lamp taking LED area light source light bar as light source |
| US9798061B2 (en) | 2012-07-26 | 2017-10-24 | Young Lighting Technology Inc. | Hybrid light guide plate and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Wu Meiyang Document name: Notification to Make Rectification |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 |