CN213987119U - Backlight module with light leakage prevention high-reflection side reflection structure - Google Patents
Backlight module with light leakage prevention high-reflection side reflection structure Download PDFInfo
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- CN213987119U CN213987119U CN202120022389.5U CN202120022389U CN213987119U CN 213987119 U CN213987119 U CN 213987119U CN 202120022389 U CN202120022389 U CN 202120022389U CN 213987119 U CN213987119 U CN 213987119U
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Abstract
The utility model discloses a backlight unit with leak protection light high reflection side reflective structure, including the light guide plate, the bottom surface subsides of light guide plate are equipped with down the reflection rete, and the side subsides of light guide plate are equipped with side reflective structure, side reflective structure is from interior to outer viscose layer, first silver-proof oxidation protection layer, first vacuum silvering layer, first PET layer, second vacuum silvering layer, second silver-proof oxidation protection layer, second PET layer and black printing ink layer in proper order. The utility model discloses can prevent that light guide plate side printing opacity light from losing, improve luminance, can effectively prevent the light leak, reduce the light leak risk of complete machine, improve user's experience.
Description
Technical Field
The utility model relates to a backlight unit technical field, in particular to backlight unit with leak protection light high reflection side reflective structure.
Background
At present, liquid crystal display screens such as displays, televisions, smart screens and the like are widely used, the liquid crystal display screens comprise liquid crystal panels and backlight modules, and the backlight modules provide light sources for the liquid crystal panels. At present, the traditional liquid crystal display mainly takes a side-in type LED backlight module structure as a main part, and the side edges of the light guide plate are all of common white reflection structures or silver reflection structures, so that light leakage is easy, and the brightness loss is large; the main reason is that the reflectivity of the side reflective material is not high enough, and the reflective layer can transmit light, and the reflective material can transmit light to generate light loss, so that the display brightness of the whole display device can be reduced, and the risk of light leakage exists.
Chinese patent 201620529699.5 discloses a backlight module with improved bright edge, which comprises a shading adhesive arranged on the back of the screen, an upper brightness enhancement film arranged on the bottom of the shading adhesive, a lower diffusion film arranged on the bottom of the upper brightness enhancement film, a light guide plate connected to the bottom of the lower diffusion film, an LED light source arranged on one side of the light guide plate, a rubber frame connected to the lower part of the light guide plate, a bonding layer arranged on the bottom of the rubber frame, a reflective sheet arranged on the bottom of the bonding layer, an opaque black single-sided tape arranged between the light guide plate and the shading adhesive, and an opaque black single-sided tape arranged on the upper part of the light guide plate and opposite to the other three sides of one side of the LED light source. The black single-sided adhesive tape can improve bright edges, but cannot improve the reflectivity, is attached between the light guide plate and the shading adhesive on the upper side of the light guide plate, is not arranged on the side of the light guide plate, and cannot prevent light leakage on the side of the light guide plate.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is according to the not enough of above-mentioned technique, provide a backlight unit with leak protection light high reflection side reflective structure, this backlight unit can prevent light guide plate side printing opacity light loss, improves luminance, can effectively prevent the light leak, reduces the light leak risk of complete machine, improves user's experience.
In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a backlight unit with light leak protection height reflects side reflective structure, includes the light guide plate, and the bottom surface subsides of light guide plate are equipped with down the reflection rete, and the side subsides of light guide plate are equipped with the side reflective structure, the side reflective structure is from interior to outer viscose layer, first silver-proof oxidation protection layer, first vacuum silvering layer, first PET layer, second vacuum silvering layer, second silver-proof oxidation protection layer, second PET layer and black printing ink layer of being in proper order.
Preferably, the thickness of the adhesive layer is 48 to 52 μm, the thickness of the first silver oxidation prevention protective layer is 0.8 to 1.2 μm, the thickness of the first vacuum silver plating layer is 70 to 80nm, the thickness of the first PET layer is 24 to 26 μm, the thickness of the second vacuum silver plating layer is 70 to 80nm, the thickness of the second silver oxidation prevention protective layer is 0.8 to 1.2 μm, the thickness of the second PET layer is 48 to 52 μm, and the thickness of the black ink layer is 4.5 to 5.5 μm.
Preferably, the side reflecting structure includes a left side reflecting structure, an upper side reflecting structure and a right side reflecting structure, and is correspondingly attached to the left side, the upper side and the right side of the light guide plate. And an LED lamp source is arranged on the lower side edge of the light guide plate.
Preferably, a diffusion film layer is attached to the light guide plate, a first brightness enhancement film layer is attached to the diffusion film layer, a second brightness enhancement film layer is attached to the first brightness enhancement film layer, a DBEF reflective polarized brightness enhancement film is attached to the second brightness enhancement film layer, and liquid crystal glass is disposed on the DBEF reflective polarized brightness enhancement film.
Preferably, the backlight module with the light leakage prevention high reflection side reflection structure further comprises a back plate and a U-shaped frame body, wherein the side of the back plate is provided with an upward bent frame portion, and the lower reflection film layer, the light guide plate, the side reflection structure, the diffusion film layer, the first brightness enhancement film layer, the second brightness enhancement film layer and the DBEF reflection type polarization brightness enhancement film are all installed in the frame portion on the back plate; the middle part of the U-shaped frame body is provided with a spacer which divides the U-shaped frame body into a lower U-shaped frame body part and an upper U-shaped frame body part, the lower U-shaped frame body part is sleeved outside the frame part of the back plate, and the liquid crystal glass is arranged in the upper U-shaped frame body part.
Preferably, the backlight module with the light leakage prevention high reflection side reflection structure further comprises a rear shell, a lower frame strip and a driving board, wherein the rear shell is installed at the lower end of the rear side of the back plate, the driving board is installed in the rear shell, and the lower frame strip is installed at the lower end of the back plate; the liquid crystal glass is connected with a T-CON plate used for driving the liquid crystal glass, and the T-CON plate is arranged in a rear shell at the rear side of the back plate.
The utility model has the advantages that: the utility model is provided with a side reflection structure adhered to the side of the light guide plate, and the side reflection structure comprises an adhesive layer, a first silver oxidation prevention protective layer, a first vacuum silver coating layer, a first PET layer, a second vacuum silver coating layer, a second silver oxidation prevention protective layer, a second PET layer and a black ink layer from inside to outside in sequence; the arrangement of the two vacuum silver-plated layers can ensure that the reflectivity of the side edge of the backlight module is very high, prevent the light loss of the light transmission and improve the brightness; the first silver oxidation protection layer is arranged on the first vacuum silver plating layer, and the second silver oxidation protection layer is arranged on the outer layer of the second vacuum silver plating layer, so that the vacuum silver plating layer can be prevented from being oxidized, and the effect of protecting the vacuum silver plating layer is achieved; the first PET layer is arranged between the first vacuum silver plating layer and the second vacuum silver plating layer, and the second PET layer is arranged outside the second silver oxidation prevention protective layer, so that the light transmission is good, the stiffness is good, and the impact resistance is strong; the black printing ink layer covers outside the second PET layer, and is preferably the black printing ink layer of making a mute, can further prevent printing opacity light loss, improves luminance, can effectively prevent the light leak, reduces the light leak risk of complete machine, improves user's experience.
Drawings
Fig. 1 is a dispersion diagram of the overall structure of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
FIG. 3 is a schematic view showing the light guide plate, the lower reflective film layer, the side reflective structure and the LED light source.
Fig. 4 is an enlarged view of a portion B of fig. 3.
Fig. 5 is a structural level diagram of the side reflection structure of the present invention.
Fig. 6 is a schematic diagram of the reflection principle of the side reflection structure.
In the figure: 1. a light guide plate; 2. a lower reflective film layer; 3. a side reflective structure; 31. an adhesive layer; 32. a first silver oxidation protection layer; 33. a first vacuum silver coating layer; 34. a first PET layer; 35. a second vacuum silver plating layer; 36. a second silver oxidation protection layer; 37. a second PET layer; 38. a black ink layer; 4, LED lamp source; an LED lamp; 5. a diffusion film layer; 6. a first intensifying film layer; 7. a second intensifying film layer; a DBEF reflective polarizing brightness enhancement film; 9. liquid crystal glass; a T-CON plate; 10. a back plate; 101. a frame portion; a U-shaped frame body; 111. a spacer; 112. a lower U-shaped frame portion; 113. an upper U-shaped frame portion; 12. a rear housing; 13. a lower frame strip; 14. a drive plate.
Detailed Description
The structure and operation of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-5, the utility model relates to a backlight module with leak protection light high reflection side reflective structure, its characterized in that: including light guide plate 1, the bottom surface subsides of light guide plate 1 are equipped with down reflection rete 2, and the side subsides of light guide plate 1 are equipped with side reflection configuration 3, side reflection configuration 3 is from interior to being equipped with side reflection configuration 3 outward in proper order for viscose layer 31, first silver-colored oxidation protection layer 32, first vacuum silvering layer 33, first PET layer 34, second vacuum silvering layer 35, second silver-colored oxidation protection layer 36, second PET layer 37 and black printing ink layer 38. The arrangement of the two vacuum silver-plated layers can ensure that the reflectivity of the side edge of the backlight module is very high, prevent the light loss of the light transmission and improve the brightness; the first silver oxidation protection layer is arranged on the first vacuum silver plating layer, and the second silver oxidation protection layer is arranged on the outer layer of the second vacuum silver plating layer, so that the vacuum silver plating layer can be prevented from being oxidized, and the effect of protecting the vacuum silver plating layer is achieved; the first PET layer is arranged between the first vacuum silver plating layer and the second vacuum silver plating layer, and the second PET layer is arranged outside the second silver oxidation prevention protective layer, so that the light transmission is good, the stiffness is good, and the impact resistance is strong; the black printing ink layer covers outside the second PET layer, and is preferably the black printing ink layer of making a mute, can further prevent printing opacity light loss, improves luminance, can effectively prevent the light leak, reduces the light leak risk of complete machine, improves user's experience.
As shown in fig. 5, the adhesive layer 31 has a thickness of 48 to 52 μm, preferably 50 μm, the first silver oxidation prevention protective layer 32 has a thickness of 0.8 to 1.2 μm, preferably 1.0 μm, the first vacuum silver coating layer 33 has a thickness of 70 to 80nm, preferably 74 to 76nm, the first PET layer 34 has a thickness of 24 to 26 μm, preferably 25 μm, the second vacuum silver coating layer 35 has a thickness of 70 to 80nm, preferably 74 to 76nm, the second silver oxidation prevention protective layer 36 has a thickness of 0.8 to 1.2 μm, preferably 1.0 μm, the second PET layer 37 has a thickness of 48 to 52 μm, preferably 50 μm, and the black ink layer 38 has a thickness of 4.5 to 5.5 μm, preferably 5.0 μm. The thicknesses of the film layers of the side reflecting structure 3 are as described above, and light leakage prevention and high reflection can be optimally achieved.
As shown in fig. 1, fig. 3 and fig. 4, the side reflective structure 3 includes a left side reflective structure, an upper side reflective structure and a right side reflective structure, and is correspondingly attached to the left side, the upper side and the right side of the light guide plate. The LED lamp source 4 is arranged on the lower side edge of the light guide plate 1, the LED lamp source 4 comprises a row of LED lamps 41, and the LED lamps are welded on the lamp strips.
As shown in fig. 1, a diffusion film layer 5 is attached on the light guide plate 1, a first brightness enhancement film layer 6 is attached on the diffusion film layer 5, a second brightness enhancement film layer 7 is attached on the first brightness enhancement film layer 6, a DBEF reflective polarized brightness enhancement film 8 is attached on the second brightness enhancement film layer 7, and a liquid crystal glass 9 is disposed on the DBEF reflective polarized brightness enhancement film 8.
As shown in fig. 1 and fig. 2, the backlight module with the light leakage prevention high reflection side reflection structure further includes a back plate 10 and a U-shaped frame 11, a side of the back plate 10 has an upwardly bent frame portion 101, and the lower reflection film layer 2, the light guide plate 1, the side reflection structure 3, the diffusion film layer 5, the first brightness enhancement film layer 6, the second brightness enhancement film layer 7 and the DBEF reflection type polarized brightness enhancement film 8 are all installed in the frame portion 101 above the back plate 10; the middle part of the U-shaped frame body 11 is provided with a spacer 111, the U-shaped frame body 11 is divided into a lower U-shaped frame body part 112 and an upper U-shaped frame body part 113 by the spacer 111, the lower U-shaped frame body part 112 is sleeved outside the frame part 101 of the back plate 10, and the liquid crystal glass 9 is installed in the upper U-shaped frame body part 113. The backlight module with the light leakage prevention high-reflection side reflection structure further comprises a rear shell 12, a lower frame strip 13 and a driving board 14, wherein the rear shell 12 is installed at the lower end of the rear side of the back plate 10, the driving board 14 is installed in the rear shell, and the lower frame strip 13 is installed at the lower end of the back plate 13; the liquid crystal glass 9 is connected with a T-CON plate 91 for driving the liquid crystal glass 9, and the T-CON plate 91 is arranged in a rear shell 12 at the rear side of the back plate 10; T-CON board is also called logic board or control board, T-CON is English abbreviation of timing Controller, meaning timing control circuit.
As shown in fig. 6, the formula is gone into to LED lamp source 4 side and is sent out light, net point 1001 through the light guide plate produces photic refraction and reflection, first vacuum silver coating and the second vacuum silver coating that arrive side reflective structure when light reflection, the reflection and the refraction of light can return to in the light guide plate 1, the utilization efficiency of light improves like this, backlight unit's luminance has been improved, simultaneously because side reflective structure has the black printing ink layer, light can not see through PET layer and black printing ink layer, avoid the loss and the light leak of light.
The above, only the utility model discloses preferred embodiment, all be according to the utility model discloses a technical scheme does any slight modification, the equivalent change and the modification to above embodiment, all belong to the utility model discloses technical scheme's within range.
Claims (8)
1. The utility model provides a backlight unit with leak protection light high reflection side reflective structure which characterized in that: including light guide plate (1), the bottom surface subsides of light guide plate (1) are equipped with down reflection rete (2), and the side subsides of light guide plate (1) are equipped with side reflection configuration (3), side reflection configuration is from interior to outer viscose layer (31), first silver-proof oxidation protection layer (32), first vacuum silvering layer (33), first PET layer (34), second vacuum silvering layer (35), second silver-proof oxidation protection layer (36), second PET layer (37) and black printing ink layer (38) of being in proper order.
2. The backlight module with the light leakage prevention high reflection side reflection structure as claimed in claim 1, wherein: the thickness of the adhesive layer (31) is 48-52 mu m, the thickness of the first silver oxidation prevention protective layer (32) is 0.8-1.2 mu m, the thickness of the first vacuum silver coating (33) is 70-80 nm, the thickness of the first PET layer (34) is 24-26 mu m, the thickness of the second vacuum silver coating (35) is 70-80 nm, the thickness of the second silver oxidation prevention protective layer (36) is 0.8-1.2 mu m, the thickness of the second PET layer (37) is 48-52 mu m, and the thickness of the black ink layer (38) is 4.5-5.5 mu m.
3. The backlight module with the light leakage prevention high-reflection side edge reflection structure as claimed in claim 2, wherein: the thickness of the adhesive layer (31) is 50 micrometers, the thickness of the first silver oxidation prevention protective layer (32) is 1.0 micrometer, the thickness of the first vacuum silver plating layer (33) is 74 nm-76 nm, the thickness of the first PET layer (34) is 25 micrometers, the thickness of the second vacuum silver plating layer (35) is 74 nm-76 nm, the thickness of the second silver oxidation prevention protective layer (36) is 1.0 micrometer, the thickness of the second PET layer (37) is 50 micrometers, and the thickness of the black ink layer (38) is 5.0 micrometers.
4. The backlight module with the light leakage prevention high reflection side reflection structure as claimed in claim 1, wherein: the side edge reflection structure (3) comprises a left side edge reflection structure, an upper side edge reflection structure and a right side edge reflection structure, and is correspondingly attached to the left side edge, the upper side edge and the right side edge of the light guide plate (1).
5. The backlight module with the light leakage prevention high-reflection side edge reflection structure as claimed in claim 4, wherein: and an LED lamp source (4) is arranged on the lower side edge of the light guide plate (1).
6. The backlight module with the light leakage prevention high reflection side reflection structure as claimed in claim 1, wherein: the light guide plate is characterized in that a diffusion film layer (5) is attached to the upper portion of the light guide plate (1), a first brightening film layer (6) is attached to the upper portion of the diffusion film layer (5), a second brightening film layer (7) is attached to the upper portion of the first brightening film layer (6), a DBEF (double-reflection film) reflective polarizing brightness enhancement film (8) is attached to the upper portion of the second brightening film layer (7), and liquid crystal glass (9) is arranged on the DBEF reflective polarizing brightness enhancement film (8).
7. The backlight module with the light leakage prevention high-reflection side edge reflection structure as claimed in claim 6, wherein: the backlight module is characterized by further comprising a back plate (10) and a U-shaped frame body (11), wherein the side edge of the back plate is provided with a frame portion (101) which is bent upwards, and the lower reflection film layer (2), the light guide plate (1), the side edge reflection structure (3), the diffusion film layer (5), the first brightening film layer (6), the second brightening film layer (7) and the DBEF reflection type polarization brightness enhancement film (8) are all arranged in the frame portion (101) above the back plate (10); the middle part of the U-shaped frame body (11) is provided with a spacer (111), the U-shaped frame body (11) is divided into a lower U-shaped frame body part (112) and an upper U-shaped frame body part (113) by the spacer (111), the lower U-shaped frame body part (112) is sleeved outside the frame part (101) of the back plate (10), and the liquid crystal glass (9) is installed in the upper U-shaped frame body part (113).
8. The backlight module with the light leakage prevention high-reflection side edge reflection structure as claimed in claim 7, wherein: the rear shell (12) is mounted at the lower end of the rear side of the back plate (10), the driving plate (14) is mounted in the rear shell (12), and the lower frame strip (13) is mounted at the lower end of the back plate (10); the liquid crystal glass (9) is connected with a T-CON plate (91) for driving the liquid crystal glass (9), and the T-CON plate (91) is arranged in a rear shell (12) at the rear side of the back plate (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120022389.5U CN213987119U (en) | 2021-01-06 | 2021-01-06 | Backlight module with light leakage prevention high-reflection side reflection structure |
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| CN202120022389.5U CN213987119U (en) | 2021-01-06 | 2021-01-06 | Backlight module with light leakage prevention high-reflection side reflection structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415814A (en) * | 2021-01-06 | 2021-02-26 | 广东中强精英电子科技有限公司 | Backlight module with light leakage prevention high-reflection side reflection structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415814A (en) * | 2021-01-06 | 2021-02-26 | 广东中强精英电子科技有限公司 | Backlight module with light leakage prevention high-reflection side reflection structure |
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