CN210803931U - Vehicle-mounted instrument LCD self-adaptive double-backlight module - Google Patents
Vehicle-mounted instrument LCD self-adaptive double-backlight module Download PDFInfo
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- CN210803931U CN210803931U CN201922074914.3U CN201922074914U CN210803931U CN 210803931 U CN210803931 U CN 210803931U CN 201922074914 U CN201922074914 U CN 201922074914U CN 210803931 U CN210803931 U CN 210803931U
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- backlight module
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- vehicle
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- 238000009792 diffusion process Methods 0.000 claims abstract description 16
- 239000002390 adhesive tape Substances 0.000 claims abstract description 9
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model belongs to the field of automobile accessories, in particular to a vehicle-mounted instrument LCD self-adaptive double-backlight module, aiming at the problems of large volume, high cost and poor heat dissipation of the existing instrument panel double-backlight module, the proposal is provided, which comprises a base, wherein LED lamp strips are fixed on the inner walls of two sides of the base, a plurality of backlight modules are arranged on the LED lamp strips, the number of the backlight modules on the LED lamp strips is the same, the backlight modules are composed of RGB-LED high-brightness lamps and white-LED high-brightness lamps, the RGB-LED high-brightness lamps and the white-LED high-brightness lamps are positioned in the same horizontal plane, photosensitive elements are fixed at the edge of the base, a reflecting film, a light guide plate and a uniform light diffusion film are sequentially arranged above the LED lamp strips from bottom to top, the top edge of the uniform light diffusion film is glued with the junction of the inner wall of the base through a shading adhesive tape, and a brightness enhancement film is fixed between the LCD display and the uniform light diffusion film. The utility model discloses small, low power dissipation, easy production, with low costs do benefit to the popularization.
Description
Technical Field
The utility model relates to an auto-parts field especially relates to a two backlight unit of on-vehicle instrument LCD self-adaptation.
Background
The scheme of double backlight on the market adopts to arrange the light source under the screen, pastes full LED hi-lite lamp at multilayer PCB board, relies on photosensitive element, switches colour mixture light source and white light source. The color mixing light source is provided by an RGB LED high light, and the white light source is provided by a white LED high light.
Application No.: CN201420423812.2, granted bulletin date 20141210, bulletin number CN204005555U, discloses a comparison document entitled "a side-light type double backlight structure applied to LCD liquid crystal screen", which realizes the function of switching brightness by arranging two stacked light guide plates.
Because the light guide plate is the multiply wood, has leaded to the cost higher, and the LED lamp that uses is also more, and the consumption is great to the consumption can make the high heat yield of instrument greatly, seriously influences the validity of instrument life and instrument transparent upper cover antifogging agent.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of vehicle instrument LCD self-adaptation two backlight unit has solved the two backlight unit of current panel board bulky, with high costs, the poor problem of heat dissipation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
two backlight unit of on-vehicle instrument LCD self-adaptation, the on-line screen storage device comprises a base, all be fixed with LED lamp strip on the both sides inner wall of base, there are a plurality of backlight module on the LED lamp strip, two backlight module quantity is the same on the LED lamp strip, backlight module comprises RGB-LED highlight lamp and white-LED highlight lamp, RGB-LED highlight lamp and white-LED highlight lamp lie in same horizontal plane, the edge of base is fixed with photosensitive original paper, the top of LED lamp strip has set gradually reflectance coating, light guide plate and even light diffusion membrane from lower supreme, even light diffusion membrane's top edge and base inner wall handing-over department pass through the shading sticky tape veneer, the top of base is fixed with the LCD display, be fixed with the brightness enhancement film between LCD display and the even light diffusion membrane.
Preferably, the top of the inner wall of one side of the base is provided with a limiting block, and the reflecting film, the light guide plate and the uniform light diffusion film are all positioned between the limiting block and the LED light bar.
Preferably, the limiting block and the shading adhesive tape are located in the same horizontal plane, the shading adhesive tape is of a square-shaped structure, and a notch matched with the limiting block is formed in the shading adhesive tape.
Preferably, the top of the limiting block abuts against the bottom of the LCD, and the cross section of the top of the brightness enhancement film is smaller than that of the bottom of the LCD.
Preferably, a clamping block is arranged on the side wall of the LCD display, and the LCD display is clamped with the base.
Preferably, the photosensitive element is a photoelectric tube.
The utility model has the advantages that: the RGB-LED high-brightness lamp and the white-LED high-brightness lamp are arranged in parallel, namely, a module combining color mixing backlight and white backlight is used, the module is enabled to finish self-adaptive switching of two sets of backlights by sensing the ambient illumination intensity through a photosensitive element, the high-brightness white backlight is used under strong light to deal with the situation of poor visibility when the sun shines directly, the module can be automatically switched to another set of backlight when the light is weak, on one hand, the instrument display is clearer under the condition that the illumination environment is good, on the other hand, the instrument display is soft and not dazzling under the condition that the illumination environment is poor such as at night, and the like, and is energy-saving and environment-friendly. Two sets of backlight unit displacement one deck has reduced device thickness and weight, and the radiating effect is good. The device has small volume, low power consumption, easy production and low cost, and is beneficial to popularization.
Drawings
Fig. 1 is an exploded view of the LCD adaptive dual backlight module of the vehicle-mounted instrument.
Reference numbers in the figures: 1. a base; 2. an LED light bar; 3. RGB-LED high-brightness lamp; 4. white-LED high-lit lamps; 5. a photosensitive element; 6. a reflective film; 7. a light guide plate; 8. a light homogenizing diffusion film; 9. a light-shielding tape; 10. an LCD display; 11. a brightness enhancement film; 12. and a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, the LCD adaptive dual backlight module for the vehicle instrument comprises a base 1, LED light bars 2 are fixed on the inner walls of two sides of the base 1, a plurality of backlight modules are arranged on the LED light bars 2, the number of the backlight modules on the two LED light bars 2 is the same, each backlight module comprises an RGB-LED high-brightness lamp 3 and a white-LED high-brightness lamp 4, the RGB-LED high-brightness lamp 3 and the white-LED high-brightness lamp 4 are positioned in the same horizontal plane, a photosensitive original 5 is fixed on the edge of the base 1, a reflective film 6, a light guide plate 7 and a uniform light diffusion film 8 are sequentially arranged above the LED light bars 2 from bottom to top, the top edge of the uniform light diffusion film 8 is glued with the inner wall of the base 1 through a light-shielding adhesive tape 9, an LCD display 10 is fixed on the top of the base 1, a brightness enhancement film 11 is fixed between the LCD display 10 and the uniform light diffusion, the reflective film 6, the light guide plate 7 and the uniform light diffusion film 8 are located between the limiting block 12 and the LED light bar 2, the limiting block 12 and the shading adhesive tape 9 are located on the same horizontal plane, the shading adhesive tape 9 is of a zigzag structure, a notch matched with the limiting block 12 is formed in the shading adhesive tape 9, the top of the limiting block 12 abuts against the bottom of the LCD display 10, the top cross section of the brightness enhancement film 11 is smaller than the bottom cross section of the LCD display 10, a clamping block is arranged on the side wall of the LCD display 10, the LCD display 10 is connected with the base 1 in a clamped mode, the photosensitive element 5 is a photoelectric tube, the photoelectric tube, a switch, a single chip microcomputer, a power supply and the LED light bar 2 form a closed loop, the photoelectric tube converts the ambient light intensity into the electric signal intensity and transmits the electric signal intensity to the single chip microcomputer, and the single chip microcomputer determines the.
Here, it should be noted that: through photosensitive original 5 perception surrounding illumination intensity, two sets of backlight unit utilize photosensitive element 5 to switch, use the poor situation of visibility when highlight white is shaded to answer direct sunlight under the highlight, but the automatic switch-over is shaded to another group when light is weaker, and this group is shaded and can accomplish arbitrary colour mixture or the monochromatic effect of arbitrary colour. So as to improve the driving pleasure.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The vehicle-mounted instrument LCD self-adaptive double-backlight module comprises a base (1) and is characterized in that LED lamp strips (2) are fixed on the inner walls of two sides of the base (1), a plurality of backlight modules are arranged on the LED lamp strips (2), the number of the backlight modules on the two LED lamp strips (2) is the same, each backlight module comprises an RGB-LED high-brightness lamp (3) and a white-LED high-brightness lamp (4), the RGB-LED high-brightness lamps (3) and the white-LED high-brightness lamps (4) are positioned in the same horizontal plane, photosensitive elements (5) are fixed at the edge of the base (1), a reflecting film (6), a light guide plate (7) and a uniform light diffusion film (8) are sequentially arranged above the LED lamp strips (2) from bottom to top, the joint of the top edge of the uniform light diffusion film (8) and the inner wall of the base (1) is glued through a shading adhesive tape (9), an LCD display (10) is fixed at the top of the base, a brightness enhancement film (11) is fixed between the LCD display (10) and the uniform light diffusion film (8).
2. The vehicle-mounted instrument LCD self-adaptive double-backlight module according to claim 1, wherein a limiting block (12) is arranged at the top of the inner wall of one side of the base (1), and the reflecting film (6), the light guide plate (7) and the light homogenizing diffusion film (8) are all located between the limiting block (12) and the LED light bar (2).
3. The LCD self-adaptive double-backlight module of the vehicle-mounted instrument according to claim 2, wherein the limiting block (12) and the shading tape (9) are located in the same horizontal plane, the shading tape (9) is of a rectangular structure, and a notch matched with the limiting block (12) is formed in the shading tape (9).
4. The vehicle instrument LCD self-adaptive double-backlight module according to claim 2, wherein the top of the limiting block (12) abuts against the bottom of the LCD display (10), and the cross section of the top of the brightness enhancement film (11) is smaller than that of the bottom of the LCD display (10).
5. The vehicle-mounted instrument LCD self-adaptive double-backlight module according to claim 1, wherein a clamping block is arranged on the side wall of the LCD display (10), and the LCD display (10) is clamped with the base (1).
6. The vehicle-mounted instrument LCD self-adaptive double-backlight module according to claim 1, wherein the photosensitive element (5) is a photoelectric tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922074914.3U CN210803931U (en) | 2019-11-27 | 2019-11-27 | Vehicle-mounted instrument LCD self-adaptive double-backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922074914.3U CN210803931U (en) | 2019-11-27 | 2019-11-27 | Vehicle-mounted instrument LCD self-adaptive double-backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210803931U true CN210803931U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922074914.3U Expired - Fee Related CN210803931U (en) | 2019-11-27 | 2019-11-27 | Vehicle-mounted instrument LCD self-adaptive double-backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210803931U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485939A (en) * | 2020-12-04 | 2021-03-12 | 深圳市瀚达美电子有限公司 | Integrated vehicle-mounted display with atmosphere lamp module |
| CN114354600A (en) * | 2021-12-29 | 2022-04-15 | 常州中端电器有限公司 | Automatic optical detection equipment for electronic instrument |
-
2019
- 2019-11-27 CN CN201922074914.3U patent/CN210803931U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485939A (en) * | 2020-12-04 | 2021-03-12 | 深圳市瀚达美电子有限公司 | Integrated vehicle-mounted display with atmosphere lamp module |
| CN114354600A (en) * | 2021-12-29 | 2022-04-15 | 常州中端电器有限公司 | Automatic optical detection equipment for electronic instrument |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200619 |
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| CF01 | Termination of patent right due to non-payment of annual fee |