CN114114751B - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN114114751B CN114114751B CN202111445408.6A CN202111445408A CN114114751B CN 114114751 B CN114114751 B CN 114114751B CN 202111445408 A CN202111445408 A CN 202111445408A CN 114114751 B CN114114751 B CN 114114751B
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- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012788 optical film Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- Mathematical Physics (AREA)
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- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The application provides a backlight module and a display device. The first light source is arranged in the second area and located on one side of the first through hole along a first direction, and the first direction is intersected with the arrangement direction of the first light source; the second light source is arranged in the first area and is positioned at one side of the first through hole, which is away from the first light source, along the first direction; the light emitting surface of the first light source is arranged towards the first through hole along the first direction, and the light emitting surface of the second light source is arranged towards the light emitting surface of the backlight module. According to the embodiment of the application, the second light source is added on the basis of the first light source, and the light rays emitted by the second light source can compensate the light ray intensity of the first through hole on the side deviating from the first light source, namely, the dark area of the display device, so that the brightness of the area is improved, and the display effect is enhanced.
Description
Technical Field
The present application relates to the field of display devices, and in particular, to a backlight module and a display device.
Background
The liquid crystal display (Liquid Crystal Display, LCD) is a backlight display device, which has the advantages of light weight, energy saving and the like, and is widely applied to the field of digital communication.
The existing display device is generally provided with a hole digging area, and is used for arranging photosensitive elements such as an under-screen camera, and compared with other display areas, dark areas exist at the periphery of the hole digging area, so that the experience of a user is affected.
Disclosure of Invention
The embodiment of the application provides a backlight module and a display device, which can improve the display effect of the display device.
In a first aspect, an embodiment of the present application provides a backlight module, where the backlight module includes a first area and a second area located at a peripheral side of the first area, the first area includes a first through hole penetrating along a direction perpendicular to a light emitting surface of the backlight module, and the backlight module includes a first light source and a second light source.
The first light source is arranged in the second area and located on one side of the first through hole along a first direction, and the first direction is intersected with the arrangement direction of the first light source; the second light source is arranged in the first area and is positioned at one side of the first through hole, which is away from the first light source, along the first direction; the light emitting surface of the first light source is arranged towards the first through hole along the first direction, and the light emitting surface of the second light source is arranged towards the light emitting surface of the backlight module.
In a second aspect, an embodiment of the present application provides a display device, including a display panel and a backlight module in any embodiment of the present application, where the display panel is stacked on a light emitting side of the backlight module.
According to the backlight module and the display device, the second light source is added on the basis of the first light source, and the light rays emitted by the second light source can compensate the light ray intensity of the first through hole on the side, away from the first light source, of the dark area of the display device, so that the brightness of the area is improved, and the display effect is enhanced. Meanwhile, in the embodiment of the application, the second light source is arranged in the first area, and the light emitting surface of the second light source is arranged towards the light emitting surface of the backlight module, so that the influence of the second light source on the size of a non-display area in the display device is avoided, and the display effect is further improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings that are needed to be used in the embodiments of the present application will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of the structure a-a' of FIG. 1;
FIG. 3 is a schematic view of yet another cross-sectional structure of a-a' in FIG. 1;
FIG. 4 is a schematic view of a further cross-sectional structure of a-a' in FIG. 1;
fig. 5 is a schematic diagram of a backlight module according to an embodiment of the present application;
FIG. 6 is a schematic cross-sectional view of the structure b-b' of FIG. 5;
fig. 7 is a schematic diagram of a backlight module according to an embodiment of the application;
FIG. 8 is a schematic cross-sectional view of the structure of c-c' in FIG. 1;
fig. 9 is a schematic diagram of a backlight module according to an embodiment of the application;
FIG. 10 is a schematic cross-sectional view of d-d' of FIG. 9;
FIG. 11 is a schematic view of yet another cross-sectional structure of d-d' in FIG. 9;
FIG. 12 is a schematic view of yet another cross-sectional structure of d-d' in FIG. 9;
fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present application.
Marking:
1. a first light source; 11. a light emitting surface of the first light source;
2. a second light source; 21. a light emitting surface of the second light source;
3. a first through hole; 31. a first sub-via; 32. a second sub-via; 33. a near hole; 34. a remote hole;
4. a light guide plate; 41. a first face; 42. a second face; 43. a groove;
5. a frame structure;
6. a back plate;
7. a reflection sheet; 71. a first avoidance hole;
8. a connecting wire;
a1, a first zone; a11, a first subarea; a12, a second subarea; a2, a second area;
x, a first direction; y, second direction.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the particular embodiments described herein are meant to be illustrative of the application only and not limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
In the conventional display device, the display panel is mainly divided into two main technologies, i.e., a liquid crystal display panel and an organic self-luminous display panel. In order to further improve the screen ratio, display technologies such as "Liu Haibing", "water drop screen" and the like, in which holes are dug in a visible area and a front camera is arranged below the screen, but cannot normally display directly above the camera, are presented.
For the lcd panel, the backlight module is required to provide a light source to display images normally, and thus, the backlight module becomes one of the key components of the lcd device. The backlight module is divided into a side-in type backlight module and a direct type backlight module according to the incidence positions of the light sources. The direct type backlight module is to set a light emitting source such as a light emitting diode (Light Emitting Diode, LED) behind the liquid crystal panel to directly form a surface light source for providing to the liquid crystal panel. The side-in backlight module is characterized in that a backlight source LED lamp bar (Light bar) is arranged at the edge of a back plate at the side rear part of the liquid crystal panel, light rays emitted by the LED lamp bar enter the Light guide plate from a Light inlet surface at one side of the Light guide plate (LGP, light Guide Plate), are reflected and diffused and then are emitted from a Light outlet surface of the Light guide plate, and then are provided for the liquid crystal panel through an optical film set to form a surface Light source.
When the display device has a hole digging area, the corresponding position of the light guide plate in the backlight module is also required to be subjected to hole digging treatment. At this time, for the side-entry backlight module, since the light guide plate has a hole, the light emitted by the light source located at one side of the hole cannot be transmitted to the other side of the hole, so that the area at the other side of the hole is darkened, and the experience of the user of the display device is affected.
In order to solve the above-mentioned problems, in one aspect, an embodiment of the present application provides a backlight module, please refer to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of the backlight module provided in the embodiment of the present application, and fig. 2 is a schematic sectional structural diagram of a-a' in fig. 1.
The backlight module is provided with a first area A1 and a second area A2 positioned on the periphery of the first area A1, wherein the first area A1 comprises a first through hole 3 penetrating along the direction perpendicular to the light emitting surface of the backlight module, and the backlight module comprises a first light source 1 and a second light source 2.
The first light source 1 is arranged in the second area A2 and is positioned on one side of the first through hole 3 along the first direction X, and the first direction X is intersected with the arrangement direction of the first light source 1; the second light source 2 is arranged in the first area A1 and is positioned at one side of the first through hole 3, which is away from the first light source 1, along the first direction X; the light emitting surface 11 of the first light source is disposed along the first direction X toward the first through hole 3, and the light emitting surface 21 of the second light source is disposed toward the light emitting surface of the backlight module. It should be noted that, the first light source 1 and the second light source 2 in fig. 1 and fig. 2 are only schematic structures, and do not limit the embodiments of the present application.
In the embodiment of the application, the first area A1 of the backlight module is matched with the display area of the corresponding display panel, and the second area A2 of the backlight module is matched with the non-display area of the corresponding display panel, wherein the shape and size of the backlight module depend on the shape and size of the corresponding display panel, and the embodiment of the application is not limited thereto.
The first through hole 3 is located in the first area A1, and the corresponding position of the first through hole 3 is used for arranging photosensitive elements such as a camera. The backlight module comprises a light guide plate 4, wherein most of the light guide plate 4 is positioned in a first area A1, and light rays emitted by a first light source 1 and a second light source 2 are transmitted to the outside of the backlight module through the light guide plate 4, wherein a first through hole 3 penetrates through the light guide plate 4.
The first light source 1 is a main light source of the backlight module, and is located at one side of the first through hole 3 along a first direction X, where the first direction X is parallel to the light emitting surface of the backlight module. The first light source 1 is a linear light source and extends in the second area A2 along the second direction Y, and the light emitting surface 11 of the first light source is disposed along the first direction X toward the first through hole 3, alternatively, the first direction X and the second direction Y are perpendicular to each other and are all parallel to the light emitting surface of the backlight module.
The light emitted by the first light source 1 can propagate to other positions of the light guide plate 4 along the first direction X, and at this time, due to the existence of the first through hole 3, the light emitted by the first light source 1 is difficult to propagate to the side of the first through hole 3 away from the first light source 1, so that the area is darkened. According to the embodiment of the application, the second light source 2 is added on the basis of the first light source 1, the second light source 2 is positioned on one side of the first through hole 3, which is away from the first light source 1, along the first direction X, and the light rays emitted by the second light source 2 can compensate the light ray intensity in the area on one side of the first through hole 3, which is away from the first light source 1, so that the brightness of the area is improved, and the display effect is enhanced.
Meanwhile, in the embodiment of the application, the light emitting surface 21 of the second light source is arranged towards the light emitting surface of the backlight module, and the light emitting surface 11 of the first light source is perpendicular to the light emitting surface 21 of the second light source, so that the size of the peripheral frame of the first through hole 3 can be reduced.
Specifically, the backlight module further includes a frame structure 5, where the frame structure 5 is disposed around the periphery of the light guide plate 4, and it is understood that the frame structure 5 is disposed in the non-display area of the display device, and a portion of the frame structure 5 is located in the second area A2, and another portion of the frame structure 5 is located in the first area A1. Wherein the frame structure 5 in the first area A1 is arranged around the first through hole 3.
For example, if the first light source 1 is disposed parallel to the light emitting surface 21 of the second light source, the second light source 2 needs to be disposed corresponding to the frame structure 5 around the first through hole 3, and the presence of the second light source 2 may affect the width of the frame structure 5. At this time, the width of the frame of the first through hole 3 facing away from the first light source 1 is approximately in the range of 8mm to 12 mm.
In the embodiment of the application, the second light source 2 is arranged in the first area A1 and corresponds to the display area of the display device, and the light emitting surface 11 of the first light source is arranged perpendicular to the light emitting surface 21 of the second light source, so that the size of the border around the first through hole 3 is not affected by the existence of the second light source 2, namely, the size of a non-display area in the display device is not increased, and the narrow border is facilitated. At this time, the width of the frame of the first through hole 3 facing away from the first light source 1 is in the range of 4mm to 6 mm.
According to the embodiment of the application, the second light source 2 is added on the basis of the first light source 1, and the light rays emitted by the second light source 2 can compensate the light ray intensity of the first through hole 3 on the side deviating from the first light source 1, namely, in the dark area region of the display device, so that the brightness of the region is improved, and the display effect is enhanced. Meanwhile, in the embodiment of the application, the second light source 2 is arranged in the first area A1, and the light emitting surface 21 of the second light source is arranged towards the light emitting surface of the backlight module, so that the influence of the second light source 2 on the size of the non-display area of the display device is avoided, and the display effect is further improved.
Referring to fig. 3, in some embodiments, the backlight module includes a light guide plate 4 and a back plate 6, the light guide plate 4 has a first surface 41 and a second surface 42 opposite to each other along a direction perpendicular to a light emitting surface of the backlight module, the first surface 41 is located on a side of the second surface 42 facing away from the back plate 6, and the second light source 2 is disposed between the second surface 42 and the back plate 6.
The light guide plate 4 is used for guiding the scattering directions of the first light source 1 and the second light source 2 and ensuring the uniformity of the brightness of the panel, and the first surface 41 is positioned on one side of the light guide plate 4 away from the back plate 6, namely the light emitting side of the light guide plate 4; the second surface 42 is located at a side of the light guide plate 4 near the back plate 6, and the light emitted by the second light source 2 enters the light guide plate 4 through the second surface 42 and is emitted from the light guide plate 4 through the first surface 41. It can be understood that the light guide plate 4 is provided with a plurality of optical films on a side facing away from the back plate 6, for improving the light emitting effect of the backlight module, which is not limited by the embodiment of the application.
As shown in fig. 3, in some embodiments, the second face 42 has a recess 43 formed recessed toward the first face 41, the second light source 2 is at least partially positioned within the recess 43, and the light emitting face 21 of the second light source faces the first face 41.
The number of the second light sources 2 is a plurality, the number of the second light sources 2 corresponds to the number of the grooves 43, the grooves 43 are used for limiting the positions of the second light sources 2, and at least part of the second light sources 2 are located in the grooves 43 so as to reduce the overall thickness of the backlight module. Alternatively, the second light source 2 may be located entirely within the recess 43.
The light emitting surface 21 of the second light source may face the first surface 41 in a direction perpendicular to the first surface 41, or may face the first surface 41 at an angle to the direction perpendicular to the first surface 41. That is, the light emitting surface 21 of the second light source may be disposed parallel to the first surface 41 or may be disposed obliquely to the first surface 41, which is not limited in the embodiment of the present application.
The light guide plate 4 in the embodiment of the present application is formed with a groove 43, the second light source 2 is disposed in the groove 43, and a specific position of the second light source 2 is defined by the groove 43. Meanwhile, the arrangement of the grooves 43 makes the structure between the second light source 2 and the light guide plate 4 more compact, thereby reducing the thickness dimension of the backlight module and improving the use hand feeling of the finally formed display device.
Referring to fig. 4, in some embodiments, the backlight module includes a light guide plate 4, a back plate 6, and a reflective sheet 7, the reflective sheet 7 is sandwiched between the light guide plate 4 and the back plate 6, the reflective sheet 7 includes a first avoiding hole 71 penetrating along a direction perpendicular to a light emitting surface of the backlight module, and the second light source 2 is at least partially located in the first avoiding hole 71.
The reflective sheet 7 can improve the brightness of the backlight module to a certain extent, and the light leaked from the second surface 42 of the light guide plate 4 can be re-reflected back into the light guide plate 4 through the reflective sheet 7. In the embodiment of the application, the direction perpendicular to the light emitting surface of the backlight module is the thickness direction of the reflecting sheet 7, the first avoidance hole 71 penetrates through the reflecting sheet 7, the second light source 2 is at least partially positioned in the first avoidance hole 71, and the thickness dimension of the backlight module can be reduced while the position of the second light source 2 is limited by the first avoidance hole 71. Alternatively, the first avoidance hole 71 of the reflective sheet 7 and the groove 43 of the light guide plate 4 may exist at the same time, and both are correspondingly disposed, and a part of the second light source 2 is located in the groove 43 and a part of the second light source is located in the first avoidance hole 71.
Referring to fig. 5, in some embodiments, the number of the second light sources 2 is plural, and the plural second light sources 2 are arranged side by side in the first direction X.
The dark area of the display device is correspondingly formed at one side of the backlight module, which is away from the first light source 1, of the first through hole 3, and the embodiment of the application sets the second light sources 2 at positions corresponding to the dark area of the display device, and sets a plurality of second light sources 2 side by side in the first direction X, so that enough display brightness can be ensured in the dark area of the display device, and further the display effect is improved. Alternatively, the plurality of second light sources 2 may be arranged side by side in the second direction Y, i.e. the second light sources 2 are arranged in an array on a side of the first through hole 3 facing away from the first light source 1.
In some embodiments, the number of first through holes 3 is a plurality, the plurality of first through holes 3 at least partially do not overlap in the first direction X, and the second light source 2 is located at a side of any one of the first through holes 3 facing away from the first light source 1; wherein at least part of the light emitted by the second light source 2 can propagate to the side of the other first through hole 3 facing away from the first light source 1.
Different first through holes 3 may be used for arranging different photosensitive elements, alternatively a plurality of first through holes 3 are arranged side by side in the second direction Y. In the embodiment of the application, the second light source 2 is not arranged corresponding to the plurality of first through holes 3, but is arranged on one side of one of the first through holes 3, which is away from the first light source 1, and the light emitted by the second light source 2 is transmitted to one side of the other first through holes 3, which is away from the first light source 1, by utilizing the light guiding function of the light guiding plate 4, so as to improve the display effect of one side of the other first through holes 3, which is away from the first light source 1.
The embodiment of the application comprises a plurality of first through holes 3, the second light sources 2 are arranged on one side of one first through hole 3, the light rays emitted by the second light sources 2 are transmitted to the positions of other first through holes 3 by utilizing the light guiding effect of the light guiding plate 4, the arrangement quantity of the second light sources 2 is reduced while the display effect is improved, and the energy consumption of the backlight module is reduced.
Referring to fig. 5 and 6, in some embodiments, the first through hole 3 includes a first sub through hole 31 and a second sub through hole 32, and the second light source 2 is located on a side of the first sub through hole 31 facing away from the first light source 1; wherein at least part of the light emitting surface 21 of the second light source is arranged obliquely towards the direction of the second sub-through hole 32, so that at least part of the light can propagate to the side of the second sub-through hole 32 facing away from the first light source 1.
In the embodiment of the application, the second light source 2 is only arranged on one side of the first sub-through hole 31 facing away from the first light source 1, and then the light emitted by the second light source 2 is easier to propagate to one side of the second sub-through hole 32 facing away from the first light source 1 by inclining at least part of the light emitting surface 21 of the second light source towards the second sub-through hole 32. Alternatively, the second sub-through holes 32 are arranged side by side with the first sub-through holes 31 along the second direction Y, and a plurality of second light sources 2 located near the second sub-through holes 32 along the second direction Y are obliquely arranged.
It should be noted that, in the embodiment of the present application, the first through hole 3 includes at least two through holes of the first sub through hole 31 and the second sub through hole 32, but the backlight module may include any other number of through holes besides the first sub through hole 31 and the second sub through hole 32, which is not limited in the embodiment of the present application.
Referring to fig. 7, in some embodiments, the first through hole 3 includes a near hole 33 and a far hole 34, the distance between the near hole 33 and the first light source 1 in the first direction X is smaller than the distance between the far hole 34 in the first direction X, and the second light source 2 is disposed on a side of the near hole 33 facing away from the first light source 1.
In the first direction X, the near hole 33 is closer to the first light source 1 than the far hole 34, so that the area of the near hole 33 on the side facing away from the first light source 1 is larger, i.e. the area of the dark area corresponding to the near hole 33 is larger and the brightness is lower in the formed display device. According to the embodiment of the application, the second light source 2 is arranged on the side of the near-distance hole 33, which is away from the first light source 1, so that the brightness of the side of the near-distance hole 33, which is away from the first light source 1, is improved, and the light emitted by the second light source 2 can be transmitted to the side of the far-distance hole 34, which is away from the first light source 1, through the adjustment of the light emitting surface of the second light source 2 or the light guiding effect of the light guiding plate 4, so that the brightness of two dark areas corresponding to the near-distance hole 33 and the far-distance hole 34 can be approximately close to each other, and the display effect is improved while the energy consumption is reduced.
As shown in fig. 7, in some embodiments, the first area A1 comprises a first sub-area a11 and a second sub-area a12 arranged side by side along the first direction X, the first sub-area a11 being located on a side of the second sub-area a12 facing away from the first light source 1, the near aperture 33 and the far aperture 34 being located within the second sub-area a 12; wherein at least part of the second light source 2 is located within the first sub-zone a 11.
The first sub-area a11 and the second sub-area a12 are arranged side by side along the first direction X to form together a first area A1, and the near aperture 33 and the far aperture 34 are located in the second sub-area a 12. As can be seen from the figure, the dark areas corresponding to the far holes 34 are all located in the first sub-area a11, while the dark areas corresponding to the near holes 33 are partially located in the first sub-area a11 and partially located in the second sub-area a 12.
As can be seen from the above embodiments, the second light source 2 is disposed on the side of the near-distance hole 33 facing away from the first light source 1. On this basis, in order to ensure that the light emitted by the second light source 2 can be transmitted to the side of the remote hole 34 away from the first light source 1, at least part of the second light source 2 is disposed in the first sub-area a11, so that the light emitted by the second light source 2 can be more easily transmitted to the side of the remote hole 34 away from the first light source 1. Optionally, at least part of the second light sources 2 is located within the second sub-area a 12.
In some embodiments, the second light source 2 comprises a plurality of micro light emitting diodes.
The micro light emitting diode has a smaller size and can provide a more uniform light emitting effect than other light source forms, and can further improve the problem of darkness of the finally formed display device. In addition, referring to fig. 8, since the micro light emitting diode has a more uniform light emitting effect, the light guide plate 4 above the second light source 2 can be removed, which is not limited in the embodiment of the present application.
Referring to fig. 9, in some embodiments, the backlight module further includes a connection line 8 extending along the first direction X, and the connection line 8 is used to electrically connect the first light source 1 and the second light source 2.
According to the embodiment of the application, the first light source 1 and the second light source 2 are electrically connected, so that the first light source 1 and the second light source 2 can jointly use the same driving source to drive light, and other driving sources are not required to be additionally arranged, thereby indirectly reducing the size of the second area A2 and improving the use hand feeling of the finally formed display device.
Referring to fig. 10 to 12, in some embodiments, the backlight module includes a light guide plate 4, a reflective sheet 7, and a back plate 6 stacked together, at least a portion of a connection line 8 is located between the light guide plate 4 and the reflective sheet 7; or at least part of the connecting line 8 is located between the reflector sheet 7 and the back plate 6; or at least part of the connection line 8 is located on the side of the back plate 6 facing away from the reflector 7.
As shown in fig. 10, at least part of the connection line 8 is located between the light guide plate 4 and the reflective sheet 7, that is, at least part of the connection line 8 is located between the second surface 42 and the reflective sheet 7, and the connection line 8 in the embodiment of the present application may perform a light reflection function in addition to an electrical conduction function. Specifically, a portion of the light leaked from the second surface 42 of the light guide plate 4 reaches the connection line 8, and the connection line 8 is usually made of metal material, so that the light is reflected back into the light guide plate 4, thereby improving the brightness of the backlight module.
As shown in fig. 11, at least part of the connection lines 8 are located between the reflective sheet 7 and the back plate 6, corresponding through holes need to be provided in the reflective sheet 7, and the connection lines 8 connected to the second light source 2 reach between the reflective sheet 7 and the back plate 6 through the through holes in the reflective sheet 7, and then extend along the first direction X to achieve interconnection therebetween.
As shown in fig. 12, at least a portion of the connection lines 8 are located on a side of the back plate 6 away from the reflective sheet 7, and at this time, the reflective sheet 7 and the back plate 6 are required to be provided with corresponding through holes, and the connection lines 8 connected with the second light source 2 pass through the through holes to reach a side of the back plate 6 away from the reflective sheet 7, and then extend along the first direction X to achieve interconnection.
In a second aspect, referring to fig. 13, an embodiment of the present application provides a display device, including the backlight module of any one of the foregoing embodiments and a display panel, where the display panel is stacked on a light emitting side of the backlight module.
Fig. 13 is a schematic diagram of a display device, and it is to be understood that the display device provided in the embodiment of the present application may be a display device with a display function, such as a computer, a television, or a vehicle-mounted display device, which is not particularly limited in the present application.
In addition, the display device provided by the embodiment of the present application has the beneficial effects of the backlight module provided by the embodiment of the present application, and the specific description of the backlight module in the above embodiments may be referred to specifically, and the description of the embodiment is omitted herein.
Although the embodiments of the present application are disclosed above, the embodiments are only used for the convenience of understanding the present application, and are not intended to limit the present application. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is still subject to the scope of the present disclosure as defined by the appended claims.
In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, substitution of other connection modes described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present application, and they should be included in the scope of the present application.
Claims (12)
1. The utility model provides a backlight unit, its characterized in that has first district and is located the second district of first district week side, first district includes the first through-hole that runs through along the direction perpendicular to backlight unit light-emitting surface, backlight unit includes:
the first light source is arranged in the second region and positioned at one side of the first through hole along a first direction, and the first direction is intersected with the arrangement direction of the first light source;
the second light source is arranged in the first area and is positioned at one side of the first through hole away from the first light source along the first direction;
the light emitting surface of the first light source is arranged towards the first through hole along the first direction, and the light emitting surface of the second light source is arranged towards the light emitting surface of the backlight module;
the number of the first through holes is multiple, the first through holes are at least partially not overlapped in the first direction, and the second light source is positioned at one side of any one of the first through holes, which is away from the first light source;
and at least part of light energy emitted by the second light source is transmitted to one side of the other first through holes, which is away from the first light source, so as to compensate the brightness of one side of the other first through holes, which is away from the first light source.
2. A backlight module according to claim 1, further comprising a light guide plate and a back plate, wherein the light guide plate has a first surface and a second surface opposite to each other in a direction perpendicular to the light emitting surface of the backlight module, the first surface is located at a side of the second surface facing away from the back plate, and the second light source is disposed between the second surface and the back plate.
3. A backlight module according to claim 2, wherein the second surface has a recess recessed in a direction toward the first surface, the second light source is at least partially located in the recess, and a light emitting surface of the second light source faces the first surface.
4. The backlight module according to claim 1, further comprising a light guide plate, a back plate and a reflecting sheet, wherein the reflecting sheet is sandwiched between the light guide plate and the back plate, the reflecting sheet comprises a first avoiding hole penetrating along a direction perpendicular to the light emitting surface of the backlight module, and the second light source is at least partially positioned in the first avoiding hole.
5. A backlight module according to claim 1, wherein the number of the second light sources is plural, and the plural second light sources are arranged side by side in the first direction.
6. The backlight module according to claim 1, wherein the first through hole comprises a first sub through hole and a second sub through hole, and the second light source is located at a side of the first sub through hole away from the first light source;
at least part of the luminous surface of the second light source is obliquely arranged towards the direction of the second sub-through hole, so that at least part of light can be transmitted to one side, away from the first light source, of the second sub-through hole.
7. The backlight module according to claim 1, wherein the first through hole comprises a near hole and a far hole, a distance between the near hole and the first light source in the first direction is smaller than a distance between the far hole and the first light source in the first direction, and the second light source is disposed on a side of the near hole away from the first light source.
8. The backlight module of claim 7, wherein the first region comprises a first sub-region and a second sub-region arranged side by side along a first direction, the first sub-region being located on a side of the second sub-region facing away from the first light source, the near aperture and the far aperture being located in the second sub-region;
wherein at least part of the second light source is located in the first sub-zone.
9. The backlight module according to claim 1, wherein the second light source comprises a plurality of micro light emitting diodes.
10. A backlight module according to claim 1, further comprising a connection line extending along the first direction, the connection line being for electrically connecting the first light source and the second light source.
11. The backlight module according to claim 10, further comprising a light guide plate, a reflective sheet, and a back plate stacked,
at least part of the connecting line is positioned between the light guide plate and the reflecting sheet;
or at least part of the connecting line is positioned between the reflecting sheet and the backboard;
or at least part of the connecting line is positioned on one side of the back plate away from the reflecting sheet.
12. A display device, comprising:
a backlight module according to any one of claims 1 to 11;
the display panel is arranged on the light emitting side of the backlight module in a stacking mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445408.6A CN114114751B (en) | 2021-11-30 | 2021-11-30 | Backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445408.6A CN114114751B (en) | 2021-11-30 | 2021-11-30 | Backlight module and display device |
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| CN114114751A CN114114751A (en) | 2022-03-01 |
| CN114114751B true CN114114751B (en) | 2023-12-08 |
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| CN114740654B (en) * | 2022-04-20 | 2023-08-01 | 武汉华星光电技术有限公司 | Display device |
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| CN113238408A (en) * | 2021-05-25 | 2021-08-10 | 厦门天马微电子有限公司 | Display device |
| CN113296314A (en) * | 2021-06-01 | 2021-08-24 | 厦门天马微电子有限公司 | Display module and display device |
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| GB201817035D0 (en) * | 2017-10-19 | 2018-12-05 | Lg Display Co Ltd | Display device |
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| CN114114751A (en) | 2022-03-01 |
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