CN218938735U - Backlight assembly and display device - Google Patents
Backlight assembly and display device Download PDFInfo
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- CN218938735U CN218938735U CN202223605796.2U CN202223605796U CN218938735U CN 218938735 U CN218938735 U CN 218938735U CN 202223605796 U CN202223605796 U CN 202223605796U CN 218938735 U CN218938735 U CN 218938735U
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Abstract
The utility model discloses a backlight assembly and a display device, wherein the backlight assembly comprises an ink display assembly, a light guide plate, a filling piece and a covering piece, wherein the light guide plate and the ink display assembly are arranged at intervals in parallel, the light guide plate is provided with a light guide hole arranged at one end far away from the ink display assembly, the light guide hole comprises a connecting surface, a first sub-hole far away from the ink display assembly and a second sub-hole near the ink display assembly, the first sub-hole is connected with the second sub-hole through the connecting surface, the aperture of the first sub-hole is larger than that of the second sub-hole, the covering piece is arranged at intervals in parallel at one side of the light guide plate far away from the ink display assembly, and the filling piece is arranged between the covering piece and the light guide plate. This backlight unit is through setting up the leaded light hole that forms by two sub-hole connection of internal diameter difference on the light guide plate, can make the covering realize incompletely filling to the second sub-hole, and second sub-hole part can scatter the light, has avoided losing the drawback of scattering effect because the filler fills the leaded light hole completely.
Description
Technical Field
The utility model relates to the technical field of displays, in particular to a backlight assembly and a display device.
Background
Electronic ink is a new method and technology for innovating information display. Like most conventional inks, electronic ink and lines to change its color are printable on a variety of surfaces, from curved plastic, polyester film, paper to cloth. The difference from conventional paper is that electronic ink changes color when powered on, and can display a changing image like a conventional screen.
The ink screen itself does not emit light and a light source needs to be placed in front of it to provide light for the ink screen display. The prior art adopts double faced adhesive tape, front light guide plate and glass cover plate for fixation, thus, a gap is reserved between the ink screen and the light guide plate, when the ink screen is used at different visual angles, the screen points of the light guide plate can be seen, the display effect is affected, and when the temperature changes, water vapor is easily generated on the surface of the ink screen, and the display effect and the service life are affected.
If OCA glue is adopted to fully bond the light guide plate, the glass cover plate and the ink screen, the OCA glue is easy to change the light propagation path of the light guide plate due to the design of the existing optical lattice points of the light guide plate, so that the optics are concentrated in the front half part, the optics of the rear back plate part are few, and the display of equipment is dark. Therefore, in order to change this phenomenon, it is necessary to change the existing light guide plate mesh design.
Disclosure of Invention
Therefore, the technical problem to be solved by the present utility model is that the backlight assembly in the prior art has the defect of dark display of the device due to the fact that the OCA glue changes the light propagation path of the light guide plate.
To this end, the present utility model provides a backlight assembly including:
an ink display assembly;
the light guide plate is arranged in parallel with the ink display assembly at intervals; the light guide plate is provided with a light guide hole which is arranged at one end far away from the ink display assembly, the light guide hole comprises a connecting surface, a first sub-hole which is arranged far away from the ink display assembly and a second sub-hole which is arranged close to the ink display assembly, the first sub-hole is connected with the second sub-hole through the connecting surface, and the aperture of the first sub-hole is larger than that of the second sub-hole;
the filling piece and the covering piece are arranged on one side, far away from the ink display assembly, of the light guide plate at intervals in parallel, the filling piece is arranged between the covering piece and the light guide plate, and the filling piece is suitable for completely filling the first sub-holes and partially filling the second sub-holes under the pressure of the covering piece.
Alternatively, in the backlight assembly, the first sub-holes and the second sub-holes are coaxially disposed.
Alternatively, in the backlight assembly described above, the connection surface is disposed parallel to the light guide plate.
Optionally, in the backlight assembly, the connection surface and the light guide plate form an included angle.
Optionally, in the backlight assembly, the light guide holes are distributed on the light guide plate in an array.
Optionally, the backlight assembly further includes a substrate and at least one light source member, wherein the substrate is disposed on a side edge of the light guide plate, and the light source member is disposed on the substrate and electrically connected with the substrate.
Optionally, the backlight assembly further includes a light reflecting member, wherein the light reflecting member covers the substrate and the light guiding plate, and the light reflecting member is adapted to reflect light emitted between the substrate and the light guiding plate back into the light guiding plate.
Optionally, in the backlight assembly, the cover is OCA optical cement.
A display device comprising a power supply and the backlight assembly of any one of the above, wherein the power supply is electrically connected to the substrate.
Optionally, the display device further includes a wire, one end of the wire is electrically connected to the power supply, and the other end of the wire is electrically connected to the substrate.
The technical scheme provided by the utility model has the following advantages:
1. the utility model provides a backlight assembly, which comprises an ink display assembly, a light guide plate, a filling piece and a covering piece, wherein the light guide plate and the ink display assembly are arranged at intervals in parallel, the light guide plate is provided with a light guide hole arranged at one end of the light guide plate far away from the ink display assembly, the light guide hole comprises a connecting surface, a first sub-hole far away from the ink display assembly and a second sub-hole near the ink display assembly, the first sub-hole is connected with the second sub-hole through the connecting surface, the aperture of the first sub-hole is larger than that of the second sub-hole, the covering piece is arranged at intervals in parallel at one side of the light guide plate far away from the ink display assembly, the filling piece is arranged between the covering piece and the light guide plate, and the filling piece is suitable for completely filling the first sub-hole and partially filling the second sub-hole under the pressure of the covering piece.
The backlight assembly of this structure is through setting up the leaded light hole that forms by two sub-holes connection of internal diameter difference on the light guide plate, can make the covering when covering on the filler, the part of filler receives pressure and realizes filling completely to first sub-hole, because the aperture of second sub-hole is less, consequently the filler can't realize filling completely to the second sub-hole, so the part of second sub-hole can scatter the light from light guide plate side or bottom surface, thereby avoided losing the drawback of scattering effect because the filler is filled completely to the leaded light hole, and then improved this backlight assembly's display brightness, also improved the display brightness of the display device who adopts this backlight assembly.
2. The utility model provides a backlight assembly, wherein a connecting surface is parallel to a light guide plate. Through setting up connecting surface in parallel with the light guide plate, can make the filler be after filling first sub-hole and receive the resistance from the connecting surface when getting into the second sub-hole to can't realize filling to the second sub-hole completely, simultaneously, connecting surface and first sub-hole dead angle area that sets up in parallel with the light guide plate are less, easily accept the filler, do benefit to first sub-hole and are filled completely, can avoid the scattering effect emergence that is not needed because first sub-hole is not filled completely to the as far as possible, further improved the display effect of this backlight unit.
3. The backlight assembly provided by the utility model has the advantage that the light guide holes are distributed on the light guide plate in an array. Through arranging the light guide hole array on the light guide plate in a distributed manner, not only can the light beam emitted from the light guide holes be distributed more uniformly, but also the light beam emitted from other areas of the light guide plate can be distributed more uniformly, and the display effect of the backlight assembly is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a sectional view of a backlight assembly provided in embodiment 1 of the present utility model;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is an isometric view of the light guide plate provided in embodiment 1 of the present utility model;
fig. 4 is a front view of the light guide plate provided in embodiment 1 of the present utility model;
fig. 5 is a rear view of the light guide plate provided in embodiment 1 of the present utility model;
fig. 6 is a left side view of the light guide plate provided in embodiment 1 of the present utility model;
fig. 7 is an isometric view of the light guide plate provided in embodiment 1 of the present utility model after mounting a light reflecting member;
fig. 8 is a front view of the light guide plate provided in embodiment 1 of the present utility model after mounting the light reflecting member;
fig. 9 is a rear view of the light guide plate provided in embodiment 1 of the present utility model after mounting the light reflecting member;
fig. 10 is a left side view of the light guide plate provided in embodiment 1 of the present utility model after mounting the light reflecting member;
reference numerals illustrate:
1-an ink display assembly;
2-a light guide plate; 21-a light guide hole; 211-a first sub-aperture; 212-a second sub-aperture; 213-connection surface;
3-filling piece;
4-a cover;
5-a substrate;
6-a light source piece;
7-reflectors.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Example 1
The embodiment provides a backlight assembly, as shown in fig. 1 and 2, including ink display assembly, the light guide plate, filling member and covering member, the light guide plate sets up with ink display assembly parallel interval, the light guide plate has the light guide hole of seting up in its one end of keeping away from ink display assembly, the light guide hole includes the junction surface, keep away from the first sub-hole that ink display assembly set up and be close to the second sub-hole that ink display assembly set up, first sub-hole passes through the junction surface with the second sub-hole and is connected, the aperture of first sub-hole is greater than the aperture of second sub-hole, the parallel interval of covering member sets up in the light guide plate one side of keeping away from ink display assembly, the filling member sets up between covering member and light guide plate, the filling member is suitable for under the pressure of covering member to be filled completely to first sub-hole, and to second sub-hole part fill.
The backlight assembly of this structure is through setting up the leaded light hole that forms by two sub-holes connection of internal diameter difference on the light guide plate, can make the covering when covering on the filler, the part of filler receives pressure and realizes filling completely to first sub-hole, because the aperture of second sub-hole is less, consequently the filler can't realize filling completely to the second sub-hole, so the part of second sub-hole can scatter the light from light guide plate side or bottom surface, thereby avoided losing the drawback of scattering effect because the filler is filled completely to the leaded light hole, and then improved this backlight assembly's display brightness, also improved the display brightness of the display device who adopts this backlight assembly. In this embodiment, the first sub-hole and the second sub-hole are coaxially arranged, and the first sub-hole and the second sub-hole which are coaxially arranged enable the light guide hole formed by the two sub-holes to have a more uniform scattering effect, so that the display effect of the backlight assembly is improved.
The backlight assembly provided in this embodiment, as shown in fig. 1, has a connection surface disposed parallel to the light guide plate. . Through setting up connecting surface in parallel with the light guide plate, can make the filler be after filling first sub-hole and receive the resistance from the connecting surface when getting into the second sub-hole to can't realize filling to the second sub-hole completely, simultaneously, connecting surface and first sub-hole dead angle area that sets up in parallel with the light guide plate are less, easily accept the filler, do benefit to first sub-hole and are filled completely, can avoid the scattering effect emergence that is not needed because first sub-hole is not filled completely to the as far as possible, further improved the display effect of this backlight unit. In particular, in this embodiment, the covering element is an OCA optical cement, which has the characteristics of colorless transparency, light transmittance of more than 95%, good cementing strength, being curable at room temperature or medium temperature, small curing shrinkage, and the like. .
In the backlight assembly provided in this embodiment, as shown in fig. 1, the connection surface and the light guide plate form an included angle. The connecting surface arranged at an included angle with the light guide plate can provide resistance to the filling piece when the filling piece enters the second sub-hole, so that the filling rate of the filling piece to the second sub-hole and the final filling degree of the filling piece to the second sub-hole are reduced.
In the backlight assembly provided in this embodiment, as shown in fig. 1, light guide holes are distributed in an array on a light guide plate. The light guide holes distributed on the light guide plate in an array form can achieve a more uniform scattering effect on the light emitted by the light source, and the display effect of the backlight assembly is improved.
The backlight assembly provided in this embodiment, as shown in fig. 1, further includes a substrate and at least one light source member, wherein the substrate is disposed on a side edge of the light guide plate, and the light source member is disposed on the substrate and electrically connected to the substrate. The light source piece is arranged on the measuring edge of the light guide plate, and the light guide hole with the scattering effect is matched with the light source piece, so that the effect of injecting light rays of the light source piece into the light guide plate is achieved, the overall thickness of the backlight assembly can be reduced, and the thickness of equipment of a display device adopting the backlight assembly can be reduced.
The backlight assembly provided in this embodiment, as shown in fig. 1, further includes a light reflecting member, wherein the light reflecting member covers the substrate and the light guiding plate, and the light reflecting member is adapted to reflect light emitted from between the substrate and the light guiding plate back into the light guiding plate. The backlight assembly can reflect light rays emitted from the light source part back into the light guide plate along the gap between the substrate and the light guide plate in the light rays emitted from the light source part through the substrate and the light guide plate, so that the utilization rate of the light rays is improved.
Example 2
The present embodiment provides a display device, as shown in fig. 3, including a power supply and the display device of embodiment 1, where the power supply is electrically connected to the substrate. In addition, the device also comprises a wire, one end of the wire is electrically connected with the power supply, and the other end of the wire is electrically connected with the substrate. According to the display device with the structure, the light guide holes formed by connecting the two sub-holes with different inner diameters are formed in the light guide plate, so that when the cover piece is covered on the filling piece, the first sub-holes are completely filled by the part of the filling piece under pressure, and the second sub-holes cannot be completely filled by the filling piece due to the small aperture of the second sub-holes, so that light rays from the side surface or the bottom surface of the light guide plate can be scattered by the part of the second sub-holes, the defect that the scattering effect is lost due to the fact that the filling piece completely fills the light guide holes is avoided, the display brightness of the display device is improved, and the display brightness of display equipment adopting the display device is also improved.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (10)
1. A backlight assembly, comprising:
an ink display assembly;
the light guide plate is arranged in parallel with the ink display assembly at intervals; the light guide plate is provided with a light guide hole which is arranged at one end far away from the ink display assembly, the light guide hole comprises a connecting surface, a first sub-hole which is arranged far away from the ink display assembly and a second sub-hole which is arranged close to the ink display assembly, the first sub-hole is connected with the second sub-hole through the connecting surface, and the aperture of the first sub-hole is larger than that of the second sub-hole;
the filling piece and the covering piece are arranged on one side, far away from the ink display assembly, of the light guide plate at intervals in parallel, the filling piece is arranged between the covering piece and the light guide plate, and the filling piece is suitable for completely filling the first sub-holes and partially filling the second sub-holes under the pressure of the covering piece.
2. The backlight assembly of claim 1, wherein the first sub-aperture is disposed coaxially with the second sub-aperture.
3. The backlight assembly of claim 2, wherein the connection surface is disposed parallel to the light guide plate.
4. The backlight assembly of claim 2, wherein the connection surface is disposed at an angle to the light guide plate.
5. The backlight assembly of claim 1, wherein the light guide holes are distributed in an array on the light guide plate.
6. The backlight assembly of claim 1, further comprising a substrate disposed on the side edge of the light guide plate and at least one light source member disposed on and electrically connected to the substrate.
7. The backlight assembly of claim 6, further comprising a light reflecting member covering the substrate and the light guide plate, the light reflecting member being adapted to reflect light emitted from between the substrate and the light guide plate back into the light guide plate.
8. The backlight assembly of claim 1, wherein the cover is OCA optical cement.
9. A display device comprising a power supply and the backlight assembly of any one of claims 1-8, wherein the power supply is electrically connected to a substrate.
10. The display device of claim 9, further comprising a wire having one end electrically connected to the power source and another end electrically connected to the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223605796.2U CN218938735U (en) | 2022-12-30 | 2022-12-30 | Backlight assembly and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223605796.2U CN218938735U (en) | 2022-12-30 | 2022-12-30 | Backlight assembly and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218938735U true CN218938735U (en) | 2023-04-28 |
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ID=86066722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223605796.2U Active CN218938735U (en) | 2022-12-30 | 2022-12-30 | Backlight assembly and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218938735U (en) |
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2022
- 2022-12-30 CN CN202223605796.2U patent/CN218938735U/en active Active
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