CN109445015B - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN109445015B CN109445015B CN201811619302.1A CN201811619302A CN109445015B CN 109445015 B CN109445015 B CN 109445015B CN 201811619302 A CN201811619302 A CN 201811619302A CN 109445015 B CN109445015 B CN 109445015B
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- backlight module
- guide plate
- light guide
- reflection part
- frame body
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Abstract
The invention discloses a backlight module and a display device, comprising: the opening structure comprises a first subsection and a second subsection, the second subsection is provided with a reflection structure, the reflection structure comprises a first reflection part and a second reflection part, the first reflection part is positioned on the surface of the inner side wall of the second subsection, and the surface of the inner side wall is the surface of one side of the frame body facing the light guide plate; the second reflection part is positioned on one side of the light guide plate far away from the back plate and along the direction vertical to the backlight module, the second reflection part is at least partially overlapped with the light guide plate, and the first reflection part and the second reflection part are vertical to each other. Through setting up reflective structure, avoid the appearance of dark space, improved the utilization ratio of light for whole backlight unit's light-emitting is even, improves backlight unit's homogeneity of light-emitting, improves backlight unit's light-emitting performance, promotes backlight unit's light-emitting effect.
Description
Technical Field
The invention relates to the technical field of display, in particular to a backlight module and a display device.
Background
At present, the screen of a common display device, such as a monitor, a television, a mobile phone, a tablet computer, etc., is usually regular rectangular.
With the development of science and technology, the demand of people for the screen of the display device is more and more diversified. The shape of the display panel is often designed to be a shape other than a regular rectangle, such as a convex polygon, a concave polygon, a circle, a ring, etc., and such a display panel is generally called a special-shaped display panel. The shaped display panel may be designed to avoid some functional modules in the display device, such as a camera module, a sensor module, or an earpiece module, in which case an opening or a hole is required in the display device for placing these electronic components. After the electronic component is placed in the opening or the hole of the display device, the electronic component blocks light emitted by the side-entering light source, so that a dark area appears on the side of the opening or the hole far away from the side-entering light source, thereby causing uneven brightness of the display device.
Disclosure of Invention
In view of the above, the present invention provides a backlight module, including: the frame body is of a closed structure and comprises a first side face and a second side face, the first side face and the second side face are intersected, the second side face comprises at least one section of sub side face, the sub side face is sunken towards the inside of the frame body to form an opening structure, the opening structure comprises a first subsection and a second subsection, the first subsection is close to the first side face, and the second subsection is far away from the first side face; the light guide plate is arranged on one side of the back plate, and the shape of the light guide plate is matched with that of the frame body; a light source located between the light guide plate and the first side surface; the second subsection is provided with a reflection structure, the reflection structure comprises a first reflection part and a second reflection part, the first reflection part is positioned on the surface of the inner side wall of the second subsection, and the surface of the inner side wall is one side surface of the frame body facing the light guide plate; the second reflection part is positioned on one side of the light guide plate far away from the back plate and along the direction vertical to the backlight module, the second reflection part is at least partially overlapped with the light guide plate, and the first reflection part and the second reflection part are vertical to each other.
The invention also provides a display device which comprises the backlight module provided by the invention.
Compared with the prior art, the backlight module and the display device provided by the invention at least realize the following beneficial effects:
by adopting the backlight module provided by the invention, the first reflection part and the first reflection part which are perpendicular to each other are added, and the first reflection part and the second reflection part are positioned at the second part of the side of the opening structure, which is far away from the light source, so that the backlight module does not need to be greatly changed, the manufacturing efficiency of the backlight module is improved, and simultaneously, the light emitted from the light guide plate originally can be reflected back to the light guide plate, thereby effectively avoiding the appearance of dark areas, improving the utilization rate of the light, enabling the light of the whole backlight module to be uniform, improving the uniformity of the light emitted by the backlight module, improving the light emitting performance of the backlight module and improving the light emitting effect of the backlight module.
Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic plan view of a display device provided in the prior art;
fig. 2 is a schematic plan view illustrating a backlight module according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the backlight module shown in FIG. 2 along the section line XX';
FIG. 4 is a schematic cross-sectional view of the backlight module shown in FIG. 2 along a section line XX';
FIG. 5 is a schematic plan view of another backlight module according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of the backlight module shown in FIG. 5 along the section line YY';
fig. 7 is a schematic plan view illustrating a light-shielding tape and a second reflective portion according to an embodiment of the present invention;
FIG. 8 is a schematic plan view illustrating a backlight module according to another embodiment of the present invention;
fig. 9 is a schematic plan view illustrating a backlight module according to another embodiment of the present invention;
fig. 10 is a schematic plan view of a display device according to an embodiment of the present invention;
fig. 11 is a schematic cross-sectional structure diagram of a display device according to an embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In order to improve the uniformity of the display device, the inventor has conducted the following research on the display device in the prior art:
referring to fig. 1, fig. 1 is a schematic plan view of a display device provided in the prior art. As shown in fig. 1, the display device includes a backlight module 01, the backlight module 01 includes a light source 03 and an edge Y11, and a portion of the edge Y11 is recessed toward the backlight module 01 to form a recessed region 02. When the light L emitted from the light source 03 propagates in the light guide plate, the light L is partially blocked by the recessed area 02, so that the recessed area 02 has a dark area DD. In the dark area DD, the light L that can reach is less, and therefore, the luminance of the dark area DD is lower than that of other areas, which affects the display of the display device and reduces the quality of the display device.
In view of the above technical problems, the present invention provides a backlight module and a display device, and the embodiments of the backlight module and the display device provided by the present invention will be described in detail below.
Referring to fig. 2 to fig. 3, fig. 2 is a schematic plan view of a backlight module according to an embodiment of the invention, and fig. 3 is a schematic cross-sectional view of the backlight module along a section line XX' in fig. 2. As shown in fig. 2-3, an embodiment of the present invention provides a backlight module, including: the frame body 2 is of a closed structure, the frame body 2 comprises a first side surface C1 and a second side surface C2, the first side surface C1 is intersected with the second side surface C2, the second side surface C2 comprises at least one section of sub-side surface C20, the sub-side surface C20 is recessed towards the inside of the frame body 2 to form an opening structure 3, the opening structure 3 comprises a first subsection 31 and a second subsection 32, the first subsection 31 is close to the first side surface C1, and the second subsection 32 is far away from the first side surface C1; the light guide plate 4 is arranged on one side of the back plate 1, and the shape of the light guide plate 4 is matched with that of the frame body 2; a light source 5, the light source 5 being positioned between the light guide plate 4 and the first side face C1; the second subsection 32 is provided with a reflection structure 6, the reflection structure 6 includes a first reflection part 61 and a second reflection part 62, the first reflection part 61 is located on an inner side wall surface S1 of the second subsection 32, and the inner side wall surface S1 is a side surface of the frame body 2 facing the light guide plate 4; the second reflection portion 62 is located on a side of the light guide plate 4 away from the back plate 1, and along a direction perpendicular to the backlight module, the second reflection portion 62 is at least partially overlapped with the light guide plate 4, and the first reflection portion 61 and the second reflection portion 62 are perpendicular to each other.
Specifically, as shown in fig. 2-3, the back plate 1 and the frame 2 are engaged to form an accommodating space, and the accommodating space can be configured with a light guide plate 4, a light source 5, and the like. Optionally, the frame body 2 may be a rubber frame, and the back plate 1 may be an iron frame. The frame body 2 comprises a first side surface C1 and a second side surface C2 which are intersected, the light source 5 is located on one side where the first side surface C1 is located, the second side surface C2 comprises a sub-side surface C20, the sub-side surface C20 is recessed towards the inside of the frame body 2 to form the opening structure 3, the light guide plate 4 is matched with the shape of the frame body 2, namely, the light guide plate 4 also comprises an opening structure (not shown in the figure) recessed towards the inside of the light guide plate 4, and the opening structure of the light guide plate 4 is arranged adjacent to the opening structure. The aperture structure 3 includes a first section 31 and a second section 32, the first section 31 being closer to the light source 5, the second section 32 being farther from the light source 5, and a first reflection portion 61 and a second reflection portion 62 perpendicular to each other being provided in a region where the second section 32 is located.
Because the frame 2 has the opening structure 3, the light emitted from the light source 5 cannot irradiate the area where the second sub-portion 32 is close to the light guide plate 4, and in order to prevent the backlight module from forming a dark area on the side of the second sub-portion 32 close to the light guide plate 4, in this embodiment, the reflection structure 6 is disposed on the second sub-portion 32, the reflection structure 6 has the first reflection portion 61 and the second reflection portion 62 which are perpendicular to each other, the light L of the light source irradiates the first reflection portion 61 after exiting through the light guide plate 4, the first reflection portion 61 reflects the light L to the second reflection portion 62, and the second reflection portion 62 reflects the light back to the light guide plate 4, so that the dark area on the side of the second sub-portion 32 close to the light guide plate 4 is prevented from forming, and.
Alternatively, the first reflective portion 61 extends along a direction F2 perpendicular to the backlight module, and the second reflective portion 62 extends along a direction F2 parallel to the backlight module, that is, the extending direction of the first reflective portion 61 is perpendicular to the extending direction of the second reflective portion 62. It can be understood that if the first reflective portion 61 and the second reflective portion 62 are not perpendicular to each other, the backlight module will have problems of low light utilization rate, poor flatness, etc. For example, when the extending direction of the first reflective portion 61 is not changed and the second reflective portion 62 is not perpendicular to the first reflective portion 61 in fig. 3, the second reflective portion 62 has a higher end and a lower end, which not only affects the flatness of the backlight module, but also the second reflective portion 62 increases the thickness of the backlight module; if the extending direction of the second reflection part 62 is not changed in fig. 3 and the first reflection part 61 is not perpendicular to the second reflection part 62, not only the first reflection part 61 cannot effectively support the second reflection part 62, but also the first reflection part 61 needs to occupy a relatively large space. In addition, in the above two cases, since the first reflective portion 61 and the second reflective portion 62 are not perpendicular to each other, part of the light cannot be effectively reflected back to the light guide plate 4, which causes a problem of low light utilization rate. Among the backlight unit that this embodiment provided, through increasing mutually perpendicular's first reflection part and second reflection part, and first reflection part and second reflection part are located the second subsection that open structure kept away from light source one side, need not carry out great change to backlight unit, when improving backlight unit's preparation efficiency, can reflect the light of following the emergent light guide plate originally back to the light guide plate, for prior art, can effectively avoid the appearance of dark space, the utilization ratio of light has been improved, make whole backlight unit's light-emitting even, improve backlight unit's uniformity of light-emitting, improve backlight unit's light-emitting performance, promote backlight unit's light-emitting effect.
Optionally, with reference to fig. 3, in a direction F2 perpendicular to the backlight module, the height of the first reflective portion 61 is less than or equal to the height of the frame 2.
Specifically, as shown in fig. 3, the height of the first reflection portion 61 does not exceed the height of the frame 2, and optionally, the height of the first reflection portion 61 is flush with the height of the frame 2.
It can be understood that if the height of the first reflection portion 61 exceeds the height of the frame body 2, the frame body 2 cannot provide effective protection or buffering when the portion exceeding the frame body 2 is impacted or pressed by an external force, so that the first reflection portion 61 is more easily damaged; when the height of the first reflection portion 61 does not exceed the height of the frame body 2, the frame body 2 can bear the external force in one step when being impacted or extruded by the external force, so as to play roles of buffering the external force and protecting the first reflection portion 61. In the backlight module provided by the embodiment, the height of the first reflection part is not more than that of the frame body, so that the first reflection part can be prevented from being damaged, and the first reflection part is prevented from being higher than the frame body, so that the flatness of the backlight module is reduced, external substances enter the backlight module, and the reliability of the backlight module is not influenced.
Optionally, referring to fig. 4, fig. 4 is a schematic cross-sectional structure of the backlight module provided in fig. 2 along a section line XX'. As shown in fig. 4, the second reflection portion 62 abuts against the housing 2 in a direction F1 parallel to the light guide plate 4.
Specifically, referring to fig. 4, in a direction F2 perpendicular to the backlight module, the second reflective portion 62 and the frame 2 may be partially overlapped or not overlapped, that is, the second reflective portion 62 may partially exceed the first reflective portion 61 or not exceed the first reflective portion 61 in a direction F1 parallel to the light guide plate 4. Alternatively, in the direction F2 perpendicular to the backlight module, the edge of the second reflection part 62 on the side close to the frame body 2 partially overlaps with the edge of the first reflection part 61 on the side close to the frame body 2.
In the backlight module that this embodiment provided, because along the direction that is on a parallel with the light guide plate, one side that keeps away from the light guide plate at the framework need not reflect light, consequently also can set up the second reflection part and do not exceed first reflection part, only set up the second reflection part in one side that the framework is close to the light guide plate, when having improved the utilization ratio of second reflection part, one side that the second reflection part is towards the framework can also set up other subassemblies as required, be favorable to richening backlight module's function, the utilization ratio in space has been improved.
Optionally, with continued reference to fig. 4, a first distance d is formed between the first reflective portion 61 and the light guide plate 4 along a direction parallel to the light guide plate 4, and the range of the first distance d is [0.1mm, 0.5mm ].
Specifically, as shown in fig. 4, the light guide plate 4 and the first reflection portion 61 have a first distance d therebetween. The first distance d is set to prevent the light guide plate from expanding when the backlight module is tested in a high-temperature or high-humidity environment, and if the first distance is not set, the first reflection part and even the frame body may be affected. The first distance d is not too large, and is larger than 0.5mm, so that the space utilization rate of the backlight module is reduced, the area of the light guide plate is reduced, and the light emitting area of the backlight module is reduced; the first distance d is not too small, and is less than 0.1mm, which may not leave enough space for the expansion of the light guide plate, so that when the light guide plate expands, the first reflection portion may be squeezed, thereby damaging the first reflection portion.
In general, for a medium-and large-sized display device, such as a car television, the first distance d may be 0.4-0.5 mm; for a small-sized display device, such as a mobile phone, the first distance d is not more than 0.2 mm. It should be understood that the present embodiment is only illustrated by taking the display device as a medium-large size display device and a small size display device, and the application of the backlight module to the display device with any size is not particularly limited.
Among the backlight unit that this embodiment provided, be equipped with first distance between light guide plate and framework, the first distance of setting should not be too big or the undersize, and suitable first distance can enough reserve out sufficient space for the inflation that the light guide plate probably takes place to avoid the first reflection part of light guide plate inflation back extrusion, avoid first reflection part to damage, can also improve backlight unit's space utilization.
Optionally, with continued reference to fig. 4, the first reflection portion 61 and the frame 2 are integrated. For example, the frame body 2 is a plastic frame, and the first reflective portion 62 may be a reflective material, such as silver, plated on a side of the plastic frame close to the light guide plate 4.
In the backlight module provided by the embodiment, the first reflection part and the frame body can be designed into an integrated structure through embedding, and the first reflection part can be coated on the frame body through modes such as metal plate spraying, so that the stability degree of the first reflection part and the frame body can be ensured, meanwhile, the thickness of the first reflection part in the direction parallel to the light guide plate can be smaller, and the space utilization rate of the backlight module is improved.
Optionally, referring to fig. 5-6, fig. 5 is a schematic plan view of another backlight module according to an embodiment of the present invention, and fig. 6 is a schematic cross-sectional view of the backlight module shown in fig. 5 along a sectional line YY'. As shown in fig. 6, the backlight module further includes a light-shielding tape 7, and the light-shielding tape 7 is located on a side of the frame body away from the back plate.
In the backlight unit that this embodiment provided, used the shading sticky tape, the shading sticky tape is a black list/double-sided sticky tape that has the shading function, adopts the black membrane of unique printing technology preparation as the substrate, has good shielding nature and insulating nature, can not only play the effect of shading, prevents that light from backlight unit's light from edge region from permeating, can also play the fixed effect of bonding. It should be noted that the material of the light-shielding tape is not particularly limited.
Optionally, referring to fig. 5-7, fig. 7 is a schematic plan view of a light-shielding tape and a second reflective portion according to an embodiment of the present invention. As shown in fig. 5-7, the second reflective portion 62 is located on a side of the light shielding tape 7 close to the light guide plate 4, and the second reflective portion 62 is at least partially overlapped with the light shielding tape 7 along a direction perpendicular to the backlight module.
Specifically, as shown in fig. 5 to 7, the second reflective portion 62 is disposed on a side of the light shielding tape 7 close to the light guide plate 4, and optionally, the second reflective portion 62 may be disposed by coating a reflective material on a side of the light shielding tape 7 close to the light guide plate 4, so that the thickness of the second reflective portion 62 is small.
In the backlight module provided by the embodiment, the second reflection part is arranged on one side of the shading adhesive tape close to the light guide plate, so that the film layer structure of the backlight module is not required to be additionally increased, and the thickness of the original backlight module is not increased.
Alternatively, with continued reference to fig. 5-6, the material of the first reflective portion 61 includes silver-plated material, and the material of the second reflective portion 62 includes white polyimide.
It is understood that the materials of the first reflective portion 61 and the second reflective portion 62 may include many materials, for example, the first reflective portion 61 may be an aluminum-plated material, and the second reflective portion 62 may be a white ink, which is not described in detail herein.
In the backlight module provided by the embodiment, the first reflecting part comprises silver-plated material, has high reflectivity and can increase the reflectivity of light; the second reflection comprises white polyimide and also has high reflectivity, and the reflection capability of the reflection structure can be enhanced by matching the white polyimide and the high reflectivity, so that the dark area is further lightened.
Optionally, please refer to fig. 2, 8-9, where fig. 8 is a schematic plan structure view of another backlight module provided in the embodiment of the present invention, and fig. 9 is a schematic plan structure view of another backlight module provided in the embodiment of the present invention. As shown in fig. 2, 8-9, the shape of the second section 32 includes a curved surface or a flat surface. Specifically, as shown in fig. 2 and 8, the shape of the second branch 32 may be a plane, specifically, the frame 2 includes a first branch 31 and a second branch 32, the first branch 31 is located on the side of the opening structure 3 closer to the light source 5, the second branch 32 is located on the side of the opening structure 3 farther from the light source 5, and the included angle θ between the second branch 32 and the second side surface C2 may be an acute angle, a right angle, or an obtuse angle. As shown in fig. 9, the second branches 32 may be curved. Alternatively, the shape of the first section 31 is the same as the shape of the second section 32.
It should be understood that the present embodiment only uses the shape of the second sub-portion shown in fig. 2 and fig. 8-9 as an example for schematic illustration, and the shape of the second sub-portion may be other shapes, and the present invention is not described herein again.
Referring to fig. 10 to 11, fig. 10 is a schematic plan view of a display device according to an embodiment of the present invention, and fig. 11 is a schematic cross-sectional view of the display device according to the embodiment of the present invention. The invention further provides a display device, which comprises the backlight module 100 provided by the invention, and a display panel 200 arranged opposite to the backlight module 100. Specifically, as shown in fig. 10 to 11, a display device 1000 according to an embodiment of the present invention includes the backlight module 100 and a display panel 200, the display panel 200 is disposed opposite to the backlight module 100, and the display panel 200 has a shape the same as that of the backlight module and also includes an opening structure. Optionally, the display device 200 further includes a camera 300, and the camera 300 is located in the opening structure. Alternatively, the display panel 200 may be a liquid crystal display panel. It should be understood that the display device provided in the embodiment of the present invention may be other display devices with a display function, such as a mobile phone, a watch, a computer, a television, and a vehicle-mounted display device, and the present invention is not limited thereto. The display device provided by the embodiment of the present invention has the beneficial effects of the backlight module provided by the embodiment of the present invention, and specific reference may be made to the specific description of the backlight module in the foregoing embodiments, and details of the embodiment are not repeated herein.
By the embodiment, the backlight module and the display device provided by the invention at least realize the following beneficial effects:
by adopting the backlight module provided by the invention, the first reflection part and the first reflection part which are perpendicular to each other are added, and the first reflection part and the second reflection part are positioned at the second part of the side of the opening structure, which is far away from the light source, so that the backlight module does not need to be greatly changed, the manufacturing efficiency of the backlight module is improved, and simultaneously, the light emitted from the light guide plate originally can be reflected back to the light guide plate, thereby effectively avoiding the appearance of dark areas, improving the utilization rate of the light, enabling the light of the whole backlight module to be uniform, improving the uniformity of the light emitted by the backlight module, improving the light emitting performance of the backlight module and improving the light emitting effect of the backlight module.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (9)
1. A backlight module, comprising:
the frame body is of a closed structure and comprises a first side face and a second side face, the first side face and the second side face are intersected, the second side face comprises at least one section of sub side face, the sub side face is sunken towards the interior of the frame body to form an opening structure, the opening structure comprises a first subsection and a second subsection, the first subsection is close to the first side face, and the second subsection is far away from the first side face;
the light guide plate is arranged on one side of the back plate, the shape of the light guide plate is matched with that of the frame body, the light guide plate comprises an opening structure which is sunken towards the inside of the light guide plate, and the opening structure which is sunken towards the inside of the light guide plate is arranged adjacent to the opening structure of the frame body;
a light source located between the light guide plate and the first side surface;
the second subsection is provided with a reflection structure, the reflection structure comprises a first reflection part and a second reflection part, the first reflection part is positioned on the surface of the inner side wall of the second subsection, and the surface of the inner side wall is one side surface of the frame body facing the light guide plate; the second reflection part is positioned on one side of the light guide plate far away from the back plate and is vertical to the direction of the backlight module, the second reflection part is at least partially overlapped with the light guide plate, and the first reflection part and the second reflection part are vertical to each other;
the first reflection part and the frame body are of an integral structure.
2. The backlight module according to claim 1,
the second reflecting portion abuts against the frame body in a direction parallel to the light guide plate.
3. The backlight module according to claim 1,
the first reflection part has a first distance with the light guide plate along a direction parallel to the light guide plate, and the first distance is in a range of [0.1mm, 0.5mm ].
4. The backlight module according to claim 1,
in a direction perpendicular to the backlight module, the height of the first reflection part is less than or equal to that of the frame body.
5. The backlight module according to claim 1,
the backlight module further comprises a shading adhesive tape, and the shading adhesive tape is located on one side, deviating from the back plate, of the frame body.
6. The backlight module according to claim 5,
the second reflecting part is positioned on one side of the shading adhesive tape close to the light guide plate, and at least partially overlaps with the shading adhesive tape along a direction perpendicular to the backlight module.
7. The backlight module according to claim 1,
the material of the first reflecting part comprises silver-plated material, and the material of the second reflecting part comprises white polyimide.
8. The backlight module according to claim 1,
the shape of the second section comprises a curved surface or a flat surface.
9. A display device comprising the backlight module according to any one of claims 1 to 8, and further comprising a display panel disposed opposite to the backlight module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811619302.1A CN109445015B (en) | 2018-12-28 | 2018-12-28 | Backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811619302.1A CN109445015B (en) | 2018-12-28 | 2018-12-28 | Backlight module and display device |
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| CN109445015A CN109445015A (en) | 2019-03-08 |
| CN109445015B true CN109445015B (en) | 2020-09-25 |
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| CN110007521A (en) * | 2019-04-30 | 2019-07-12 | 厦门天马微电子有限公司 | A kind of backlight module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007052285A (en) * | 2005-08-18 | 2007-03-01 | Toshiba Matsushita Display Technology Co Ltd | Flat display device and liquid crystal display device |
| CN203615278U (en) * | 2013-12-25 | 2014-05-28 | 上海天马微电子有限公司 | Framework, backlight module and liquid crystal display device |
| CN103744217A (en) * | 2014-01-26 | 2014-04-23 | 北京京东方光电科技有限公司 | Backlight module and display device |
| CN105090813A (en) * | 2015-03-20 | 2015-11-25 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN105044983B (en) * | 2015-08-17 | 2018-05-18 | 武汉华星光电技术有限公司 | A kind of backlight module and liquid crystal display device |
| CN108279527B (en) * | 2018-01-02 | 2021-07-30 | 厦门天马微电子有限公司 | Backlight module and display device |
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2018
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