CN116609971A - Reflecting cover and direct type backlight module with same - Google Patents
Reflecting cover and direct type backlight module with same Download PDFInfo
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- CN116609971A CN116609971A CN202310564300.1A CN202310564300A CN116609971A CN 116609971 A CN116609971 A CN 116609971A CN 202310564300 A CN202310564300 A CN 202310564300A CN 116609971 A CN116609971 A CN 116609971A
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- reflective
- cover
- top opening
- bottom opening
- reflection
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- 238000002310 reflectometry Methods 0.000 claims abstract description 17
- 230000003667 anti-reflective effect Effects 0.000 claims description 45
- 239000002245 particle Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 12
- 230000007423 decrease Effects 0.000 claims description 7
- 239000000805 composite resin Substances 0.000 claims description 5
- 239000011358 absorbing material Substances 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 26
- 239000010408 film Substances 0.000 description 21
- 239000002390 adhesive tape Substances 0.000 description 13
- 238000009792 diffusion process Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 239000012788 optical film Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000001475 halogen functional group Chemical group 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011246 composite particle Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The application provides a reflecting cover and a direct type backlight module with the same, wherein the reflecting cover comprises a plurality of reflecting cups, each reflecting cup comprises a bottom opening and a reflecting side surface which is connected with the bottom opening in a surrounding mode, the reflecting side surface is provided with a top opening far away from the bottom opening, an anti-reflecting structure is arranged along the edge of the top opening of the reflecting side surface, and the reflectivity of the surface of the anti-reflecting structure is lower than that of the reflecting side surface. The application utilizes the anti-reflection structure to reduce the light reflection near the top opening of the reflection cup, so that the diffuse reflection phenomenon caused by the structure tail end of the reflection cup is greatly improved, and the optical effect of the reflection cover is improved.
Description
Technical Field
The application relates to the technical field of liquid crystal display, in particular to a reflecting cover and a direct type backlight module with the reflecting cover.
Background
Since the lcd itself is not self-luminous, the backlight module needs to provide a light source with enough brightness to display the picture. With the development of semiconductor processes, the size of Light Emitting Diodes (LEDs) has been reduced to the order of hundreds of micrometers, so-called sub-millimeter light emitting diodes (Mini LEDs). The Mini LED is used as a backlight source, and the light mixing distance is far smaller than that of the traditional light emitting diode due to the small size, so that thousands, tens of thousands or even more Mini LEDs can be made into a matrix array to be distributed on the bottom of the liquid crystal display by adopting the direct type backlight technology, and better brightness and brightness uniformity are obtained. In order to increase the efficiency of the reflected light, a reflective cover structure may be further disposed on the light source of the direct type backlight module, so as to improve the brightness of the whole backlight module, reduce the Halo Effect (Halo Effect), and reduce the thickness (reduce the optical density value).
The Mini LED direct type backlight technology has the advantage of local dimming (Local Dimming Zones), the matrix array of Mini LEDs can be divided into a plurality of local dimming areas, and each dimming area can accurately adjust brightness according to different display contents of the liquid crystal display, so that high contrast ratio of the liquid crystal display is realized. As shown in fig. 1, the reflective cover 1 in the backlight module is composed of a plurality of reflective cups 2, and one or more openings 3 are arranged in the reflective cups 2, so that when the reflective cups are connected with the back plate, one or more Mini LED light sources can be accommodated. However, when the Mini LED direct type backlight module is used for dimming a driving area, as shown in fig. 2, diffuse reflection is easily caused around the end of the structure by the reflective cup 2, so that the local light source 4 leaks light to an adjacent area to affect an edge dark area, thereby generating a halation phenomenon, causing a problem that the dark area is still visible, and affecting the display effect.
Therefore, there is a strong need in the industry to find a reflective cover and an application of the reflective cover to a direct type backlight module that can improve the diffuse reflection problem at the end of the reflective cup structure, so that the above-mentioned difficulties and disadvantages encountered in the related art are solved.
Disclosure of Invention
Based on the above, a reflective cover and a direct type backlight module with the reflective cover are provided to improve the diffuse reflection phenomenon caused by the structural end of the reflective cup and avoid affecting the optical effect.
According to one aspect of the present application, there is provided a reflective enclosure comprising a plurality of reflective cups, each of the reflective cups comprising a bottom opening and a reflective side surrounding a connection to the bottom opening, the reflective side being provided with a top opening remote from the bottom opening, the reflective enclosure further comprising:
an anti-reflective structure disposed along an edge of the top opening of the reflective side, the anti-reflective structure surface having a lower reflectivity than the reflective side.
In one embodiment, the antireflective structure comprises a low reflective material or a light absorbing material.
In one embodiment, the anti-reflective structure surface has a reflectivity of 1% to 90%.
In one embodiment, the anti-reflective structure is configured in a stripe pattern that extends lengthwise to be continuously or discontinuously distributed along the edge of the top opening.
In one embodiment, the band pattern has a width of at least 0.1 millimeters.
In one embodiment, the antireflective structure is configured as a multi-stripe pattern having a pitch of less than 0.1 millimeter.
In one embodiment, the antireflective structure has a thickness greater than 9 microns.
In one embodiment, the anti-reflection structure is a surface flat structure, a surface rough structure or a circular arc curved surface structure.
In one embodiment, the anti-reflection structure is formed by stacking and arranging a plurality of ink resin composite particles.
In one embodiment, the reflectivity of the anti-reflective structure increases from the top opening to the bottom opening.
In one embodiment, the anti-reflection structure is an ink layer, and the color of the ink layer gradually becomes lighter from the top opening to the bottom opening.
In one embodiment, the anti-reflection structure is formed by arranging a plurality of inkjet particles, and the sizes of the inkjet particles decrease from the top opening to the bottom opening.
In one embodiment, the anti-reflection structure is formed by arranging a plurality of inkjet particles, and the densities of the inkjet particles decrease from the top opening to the bottom opening.
In one embodiment, the anti-reflection structure is formed by a multi-layer adhesive tape, and the color of the multi-layer adhesive tape gradually deepens from an inner layer to an outer layer, wherein the inner layer is adhered to the reflection side surface.
According to another aspect of the present application, there is provided a direct type backlight module, including a back plate, a plurality of LED light sources, a light guide plate, and an optical film, which are sequentially disposed, the direct type backlight module further including:
the reflective cover according to any one of the above embodiments, wherein the reflective cover is disposed between the back plate and the light guide plate, and at least one of the LED light sources is disposed in the bottom opening.
According to the reflection cover, the anti-reflection structure is arranged near the top opening of the reflection cup, so that diffuse reflection of the reflection cup around the tail end of the structure can be reduced, and the influence of the reflection cover on the optical effect is avoided.
According to the direct type backlight module, the reflection preventing structure capable of preventing diffuse reflection from occurring around the tail end of the reflection cup is adopted in the reflection cover, so that the optical effect of the reflection cover in the direct type backlight module is improved, and more accurate backlight and picture brightness control can be realized.
The objects, technical contents, features and effects achieved by the present application will be more easily understood by the following detailed description of the embodiments.
Drawings
Fig. 1 is a top view of a related art reflection housing.
FIG. 2 is a diagram1 along section line x 1 -x 1 A cross-sectional view of the reflective cup at the end of the structure.
Fig. 3 is a top view of a reflective cover in a first embodiment of the application.
FIG. 4 is a section line x in the embodiment of FIG. 3 2 -x 2 Is shown in partial cross-section, showing 3 reflector cups.
Fig. 5 is a schematic view of a reflective cup in the embodiment of fig. 4.
Fig. 6 and fig. 7 are schematic diagrams illustrating a partial distribution of an anti-reflection structure according to a first embodiment of the present application.
Fig. 8 is a schematic structural view of a reflective cup according to a second embodiment of the present application.
FIG. 9 is a section line x of the embodiment of FIG. 8 3 -x 3 Is a cross-sectional view of the reflector cup.
Fig. 10 is a cross-sectional view of a reflector cup in a third embodiment of the application.
Fig. 11 is a cross-sectional view of a reflector cup in a fourth embodiment of the application.
FIG. 12 is a schematic diagram showing the color gradient of the ink layer of the anti-reflective structure according to the fifth embodiment of the present application.
Fig. 13 is a schematic diagram showing the distribution of inkjet particles of an anti-reflection structure according to a sixth embodiment of the present application.
Fig. 14 is a schematic diagram showing the distribution of inkjet particles of an anti-reflective structure according to a seventh embodiment of the present application.
Fig. 15 is a cross-sectional view of a reflector cup in an eighth embodiment of the application.
Fig. 16 is an exploded view of a direct type backlight module according to a ninth embodiment of the application.
Reference numerals simply denote:
1. 10: reflection covers 2, 11: reflection cup
3: opening 4: light source
13: reflective side 14: bottom opening
15: top opening 16: anti-reflection structure
18: ink resin composite particles 21: ink layer
22: inkjet particles 24: inner layer
25: outer layer 30: backboard
40: LED light source 50: light guide plate
60: optical film 61: upper diffusion film
62: upper brightness enhancement film 63: lower brightness enhancement film
64: lower diffusion film D: width of (L)
d: spacing t: thickness of (L)
Detailed Description
Embodiments of the present application will be further illustrated by the following description in conjunction with the associated drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts. In the drawings, the shape and thickness may be exaggerated for simplicity and convenience. It is to be understood that elements not specifically shown in the drawings or described in the specification are in a form known to those skilled in the art. Many variations and modifications may be made by one skilled in the art in light of the disclosure herein.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear) in the embodiments of the present application are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
As described in the background art, the reflective cover of the related art is easy to cause diffuse reflection at the structural end of the reflective cup, and affects the dark area of the edge to generate a halation phenomenon, so that the display screen has the problem of darkness. In order to solve the above technical problems, the basic idea of the present application is to provide a reflective cover and a direct type backlight module having the reflective cover, which utilize an anti-reflection structure to reduce light reflection near the top opening of a reflective cup, so as to improve the problem of poor display effect caused by diffuse reflection.
Please refer to fig. 3 to fig. 5. FIG. 3 shows a top view of a reflector in a first embodiment of the application; FIG. 4 shows a partial cross-sectional view of the reflector in the embodiment of FIG. 3, showing 3 reflector cups; and figure 5 shows a schematic view of the structure of a reflector cup in the embodiment of figure 4. In the first embodiment, the reflective cover 10 is composed of a plurality of reflective cups 11 distributed in a matrix, each reflective cup 11 includes a bottom opening 14 and a reflective side 13 surrounding the bottom opening 14, wherein the bottom opening 14 is used for accommodating the LED light source 40, the reflective side 13 is provided with a top opening 15 far from the bottom opening 14, the top opening 15 and the bottom opening 14 are concentrically arranged, the anti-reflective structure 16 is arranged along the edge of the top opening 15 of the reflective side 13, and the reflectivity of the surface of the anti-reflective structure 16 is lower than that of the reflective side 13. The anti-reflective structure 16 reduces the surface reflectivity, as shown in fig. 4, so that light from the LED light source 40 incident near the top opening 15 of the reflective cup 11 is absorbed or attenuated by the anti-reflective structure 16, thereby reducing diffusion.
The anti-reflection structure 16 of the present application is used to reduce the reflection of light near the top opening 15 of the reflective cup 11, and the anti-reflection structure 16 may be a stacked structure of single or multiple layers of materials, and may be formed by coating, spraying, transferring, or the like, on the edge area of the top opening 15 of the reflective cup 11 by using a low reflection material or a light absorption material, or may be adhered together by using an adhesive layer (not shown) between the anti-reflection structure 16 and the reflective side 13. Specifically, the material of the low reflection material may be selected from black resin material, blackened metal (for example, metal oxide, metal nitride, metal oxynitride), brown organic material, and the like. The light absorbing material may be, for example, black gel or dye molecules, but not limited thereto. It is specifically noted that, for example, the reflectivity of the anti-reflective structure 16 is the reflectivity of the low reflective material or the light absorbing material, but not limited thereto, in other embodiments, the reflectivity of the anti-reflective structure 16 may be smaller than the reflectivity of the material itself, that is, the surface of the anti-reflective structure 16 may be provided with an anti-reflective optical microstructure such that the reflectivity of the whole is lower than the reflectivity of the material itself. Preferably, the surface of the anti-reflective structure 16 of the present application has a reflectivity of 1% to 90%.
The anti-reflective structure 16 of the present application is preferably disposed around the top opening 15 of each reflective cup 11. As shown in fig. 5, the anti-reflective structures 16 of the first embodiment are disposed on four sides of the top opening 15 of each reflective cup 11 in a stripe pattern, and the stripe pattern extends in the length direction to be continuously distributed along the edge of the top opening 15, preferably, the stripe pattern has a width D of at least 0.1 mm, and the thickness t of the anti-reflective structures 16 is greater than 9 μm (see fig. 4). In addition, the stripe pattern formed by the anti-reflective structure 16 of the present application may also be discontinuously distributed along the edge of the top opening 15 of the reflective cup 11. The stripe pattern of the anti-reflective structure 16 has a break point at each side of the top opening 15 of the reflective cup 11 as shown in fig. 6, and the stripe pattern of the anti-reflective structure 16 exhibits a dot-like distribution along the edge of the top opening 15 of the reflective cup 11 as shown in fig. 7.
The anti-reflection structure 16 of the present application may be configured as a single stripe pattern as set forth in the first embodiment, and may be configured as a plurality of stripe patterns in practical applications, please refer to the second embodiment. As shown in fig. 8 and 9, the antireflective structure 16 of the second embodiment is in a two stripe pattern. Of course, the number of the stripe patterns of the anti-reflection structure 16 may be more than three. In the anti-reflective structure 16 of the present application having a plurality of stripe patterns, the spacing d between the stripe patterns is preferably less than 0.1 mm.
The anti-reflection structure 16 of the present application may be a surface flat structure, a surface roughness structure, or a circular arc curved surface structure. The anti-reflective structure 16 of both the first and second embodiments described above may be a surface planar structure. As shown in fig. 10, the anti-reflection structure 16 of the third embodiment is formed by stacking a plurality of ink resin composite particles 18, wherein the ink resin composite particles 18 are formed by mixing resin in ink to form composite particles with round or irregular shapes, and forming a rough surface structure. As shown in fig. 11, the anti-reflection structure 16 of the fourth embodiment is configured as a circular arc curved surface structure with a circular convex shape. In practical applications, the surface morphology of the anti-reflective structure 16 can be designed according to the requirements.
The anti-reflective structure 16 of the present application may also be configured to have a reflectivity profile that increases from the top opening 15 of the reflective side 13 to the bottom opening 14, so as to enhance the optical effect of the reflector 10. As shown in fig. 12, the anti-reflective structure 16 of the fifth embodiment is an ink layer 21, and the color of the ink layer 21 gradually becomes lighter from the top opening toward the bottom opening (from top to bottom in the drawing), that is, the color near the top opening (uppermost) is dark (e.g., 100% pure black), and then gradually becomes light (e.g., 5% black) toward the bottom opening (downward). Further, in fig. 12, the ink layer 21 is divided into four color blocks with different depths, and the area occupied by each color block may be sequentially smaller or sequentially larger from deep to shallow, or each color block may be the same area. In addition, as shown in fig. 13, the anti-reflection structure 16 of the sixth embodiment is formed by arranging a plurality of inkjet particles 22, and the sizes of the inkjet particles 22 decrease from the top opening to the bottom opening (from top to bottom in the drawing), that is, the size of the inkjet particles is the largest particle near the top opening (uppermost), and then the size of the inkjet particles gradually decreases to small particle toward the bottom opening (downward); further, the different sized inkjet particles 22 may have the same pitch, but may also have different pitches. As shown in fig. 14, the anti-reflection structure 16 of the seventh embodiment is formed by arranging a plurality of ink-jet particles 22, but the densities of the ink-jet particles 22 decrease from the top opening to the bottom opening (from top to bottom in the drawing), that is, the density near the top opening (uppermost) has the highest density, and then gradually decreases to the lowest density toward the bottom opening (downward); further, in fig. 14, the inkjet particles 22 are the same size and are divided into four areas of different densities, each of which has the same area and has the highest density near the top opening (uppermost), i.e., the most inkjet particles 22, and the lowest density near the bottom opening (lowermost), i.e., the least inkjet particles 22; in practical applications, the area occupied by each block can be adjusted according to the requirements.
In addition, the anti-reflection structure 16 of the present application may be formed by using a multi-layered adhesive tape, wherein the inner layer of the multi-layered adhesive tape is adhered to the reflection side 13, the outer layer is facing outward, and the color of the multi-layered adhesive tape is gradually deepened from the inner layer to the outer layer. As shown in fig. 15, the antireflection structure 16 of the eighth embodiment is a double-layer adhesive tape, and the double-layer adhesive tape may be configured such that, for example, the inner layer 24 attached to the reflection side 13 is a white adhesive tape and the outer layer 25 is a black adhesive tape. Of course, the practical application is not limited to this, for example, when three layers of adhesive tapes are used, the inner layer is a light-colored adhesive tape, the middle layer is a middle-colored adhesive tape, the outer layer is a dark-colored adhesive tape, and the other materials are not described again.
The reflective cover provided by the above embodiments can be applied to a direct type backlight module. Fig. 16 is an exploded view of a direct type backlight module according to a ninth embodiment of the application. In the ninth embodiment, the direct type backlight module includes a back plate 30, a plurality of LED light sources 40, a light guide plate 50 and an optical film 60 sequentially disposed, and the reflective cover 10 according to any of the above embodiments, wherein the reflective cover 10 is disposed between the back plate 30 and the light guide plate 50, and at least one LED light source 40 is disposed in the bottom opening 14 of the reflective cup 11. The present application provides the anti-reflection structure 16 at the edge of the top opening 15 of the reflective cup 11 of the reflective cover 10, so that the light of the LED light source 40 incident near the top opening 15 of the reflective cup 11 is absorbed or attenuated by the anti-reflection structure 16, thereby reducing the diffusion phenomenon. The LED light source 40 is particularly suitable for Mini LED light sources, and the reflection cover 10 with the anti-reflection structure 16 is beneficial to realizing accurate area dimming of the Mini LED direct type backlight module, so that the contrast ratio of a bright part and a dark part of an image can be increased, and the display effect is improved.
Specifically, the optical film 60 of the direct type backlight module may include an upper diffusion film 61, an upper brightness enhancement film 62, a lower brightness enhancement film 63, and a lower diffusion film 64, wherein the upper diffusion film 61, the upper brightness enhancement film 62, the lower brightness enhancement film 63, and the lower diffusion film 64 are sequentially connected in sequence, and the lower diffusion film 64 is connected to the light guide plate 50. The optical film 60 is not limited to this in practical application, and may be selected from a reflective film, an antireflection film, a filter, a polarizing film, a compensation film, an alignment film, a diffusion film, a brightness enhancement film, a light shielding film, and the like according to its use, characteristics, and application.
In summary, according to the reflective cover and the direct type backlight module with the reflective cover provided by the application, the anti-reflection structure is utilized to reduce the light reflection near the top opening of the reflective cup, so that the diffuse reflection phenomenon caused by the structural end of the reflective cup is greatly improved, and the optical effect of the reflective cover in the direct type backlight module can be improved, thereby realizing more precise backlight and picture brightness control.
The foregoing description is only of the preferred embodiments of the application and is not intended to limit the scope of the application. It is therefore intended that all such equivalent variations or modifications as fall within the scope of the appended claims shall be embraced by the application.
Claims (15)
1. A reflective cover comprising a plurality of reflective cups, each of said reflective cups comprising a bottom opening and a reflective side surrounding said bottom opening, said reflective side being provided with a top opening remote from said bottom opening, said reflective cover further comprising:
an anti-reflective structure disposed along an edge of the top opening of the reflective side, the anti-reflective structure surface having a lower reflectivity than the reflective side.
2. The reflective cover of claim 1 wherein said anti-reflective structure comprises a low reflective material or a light absorbing material.
3. The reflective cover of claim 1 wherein said anti-reflective structure surface has a reflectivity of 1% to 90%.
4. The reflector of claim 1, wherein the anti-reflective structure is configured in a band pattern that extends lengthwise to be continuously or discontinuously distributed along the edge of the top opening.
5. The reflective cover of claim 4 wherein said band pattern has a width of at least 0.1 millimeters.
6. The reflective cover of claim 4 wherein said anti-reflective structure is configured in a multi-stripe pattern, said multi-stripe pattern having a pitch of less than 0.1 millimeters.
7. The reflector of claim 1, wherein the antireflective structure has a thickness greater than 9 microns.
8. The reflective cover of claim 1 wherein said anti-reflective structure is a surface planar structure, a surface roughened structure, or a curved surface structure.
9. The reflective cover of claim 1 wherein said anti-reflective structure is a stack of a plurality of ink resin composite particles.
10. The reflective cover of claim 1 wherein the reflectivity of said anti-reflective structure increases sequentially from said top opening toward said bottom opening.
11. The reflective cover of claim 1 wherein said anti-reflective structure is an ink layer, said ink layer having a color that tapers from said top opening toward said bottom opening.
12. The reflective cover of claim 1 wherein said anti-reflective structure is formed by an arrangement of a plurality of ink-jet particles, said plurality of ink-jet particles decreasing in size in a direction from said top opening to said bottom opening.
13. The reflective cover of claim 1 wherein said anti-reflective structure is formed by an arrangement of a plurality of ink-jet particles having a density that decreases in a sequence from said top opening toward said bottom opening.
14. The reflective cover of claim 1 wherein said anti-reflective structure is formed of a multi-layer tape having a color that gradually darkens from an inner layer attached to said reflective side to an outer layer.
15. The utility model provides a straight following formula backlight unit, includes backplate, a plurality of LED light sources, light guide plate and the optics diaphragm that set gradually, its characterized in that, straight following formula backlight unit still includes:
the reflective cover of any one of claims 1-14, disposed between the back plate and the light guide plate, and at least one of the LED light sources disposed in the bottom opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310564300.1A CN116609971A (en) | 2023-05-18 | 2023-05-18 | Reflecting cover and direct type backlight module with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310564300.1A CN116609971A (en) | 2023-05-18 | 2023-05-18 | Reflecting cover and direct type backlight module with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116609971A true CN116609971A (en) | 2023-08-18 |
Family
ID=87684809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310564300.1A Pending CN116609971A (en) | 2023-05-18 | 2023-05-18 | Reflecting cover and direct type backlight module with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116609971A (en) |
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2023
- 2023-05-18 CN CN202310564300.1A patent/CN116609971A/en active Pending
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Effective date of registration: 20240114 Address after: Building H3, K2 District, Shenchao Optoelectronic Technology Park, Minqing Road North, Longhua District, Shenzhen City, Guangdong Province, 518100 Applicant after: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Applicant after: Interface Technology (Chengdu) Co., Ltd. Applicant after: GENERAL INTERFACE SOLUTION Ltd. Address before: 611731 No. 689, Hezuo Road, West District, hi tech Zone, Chengdu, Sichuan Applicant before: Interface Technology (Chengdu) Co., Ltd. Applicant before: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Applicant before: Yicheng Photoelectric (Wuxi) Co.,Ltd. Applicant before: GENERAL INTERFACE SOLUTION Ltd. |