CN211956946U - Backlight module, display module and display device - Google Patents
Backlight module, display module and display device Download PDFInfo
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- CN211956946U CN211956946U CN202020280642.2U CN202020280642U CN211956946U CN 211956946 U CN211956946 U CN 211956946U CN 202020280642 U CN202020280642 U CN 202020280642U CN 211956946 U CN211956946 U CN 211956946U
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Abstract
The utility model relates to the technical field of electronics, and discloses a backlight module, a display module and a display device, wherein the backlight module comprises an accommodating space formed by enclosing a bottom plate and a side plate, a reflector plate, a light guide plate body and an optical film group which are sequentially arranged in the accommodating space, and a light supplementing device positioned at the edge of the backlight module, wherein the side plate is provided with a notch at the position corresponding to the light supplementing device; the light supplementing device comprises a light supplementing light guide plate convexly arranged at the edge of the light guide plate body, a shading bottom plate positioned at the bottom of the light supplementing light guide plate and a shading side plate arranged at the edge of the light supplementing light guide plate in a surrounding mode. The display module assembly that this embodiment is disclosed includes backlight unit as above, and display device includes as above display module assembly, when display device's leading camera was taken a picture or was video, carries out the light filling through backlight unit's light filling device to leading camera, can improve image quality greatly, has better user experience.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to a backlight module, display module and display device.
Background
Generally be equipped with the main camera among the display device at present to the user of being convenient for can shoot the use, and further, a lot of display device are equipped with leading camera, in order to make things convenient for the user to carry out auto heterodyne etc.. Such as a mobile phone with a front camera, a notebook computer, a tablet computer, etc. However, these front-facing cameras often do not have a flash like the main camera, so that the front-facing camera has a problem of insufficient light supplement during shooting. In addition, even if the front camera has a flash, a single or multiple high-brightness flash is generally used for supplementing light for photographing, or screen backlight of the display device is used for supplementing light.
When a single or a plurality of high-brightness flash lamps are used, the light supplementing effect is close to a point light source for supplementing light, and the light supplementing effect is not as uniform as the light supplementing effect of the surface light source. Meanwhile, when the user uses the front camera to carry out self-shooting, the eyes of the user are very easy to be uncomfortable due to the close flashing light, and even temporary burn marks or ghost shadows are generated on the retina of the user.
When the screen is used for light supplement with backlight, the light supplement brightness is usually low, and the shot object is difficult to be fully illuminated, so that the shooting or camera shooting effect is poor; when the special design is used for realizing higher illumination, backlight LEDs with special specifications are required to be used under most conditions, and the problems of more LEDs, complex circuit structure, tense spatial layout, higher cost and the like exist.
Therefore, how to improve the photographing effect of the front camera of the display device in the prior art and improve the user experience is a problem to be solved urgently in the field of electronic technology. In view of the above, the applicant of the present invention has made extensive conception in view of many defects and inconveniences caused by the imperfect design of the display device, and has actively researched and developed the present creation by improving and trying.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the leading camera of the display device that prior art discloses the not good problem of image quality when shooing or video.
In order to solve the above technical problem, the present invention discloses a backlight module, which comprises an accommodating space defined by a bottom plate and a side plate, and a reflector, a light guide plate body and an optical film set sequentially disposed in the accommodating space, and further comprises a light supplement device disposed at the edge of the backlight module, wherein the side plate is provided with a notch at a position corresponding to the light supplement device; the light supplementing device comprises a light supplementing light guide plate convexly arranged at the edge of the light guide plate body, a shading bottom plate positioned at the bottom of the light supplementing light guide plate and a shading side plate arranged at the edge of the light supplementing light guide plate in a surrounding mode.
Preferably, the shading bottom plate or the shading side plate is provided with an opening; the light supplementing device also comprises a light supplementing light source which is detachably connected to the shading bottom plate or the shading side plate, and a light emergent surface of the light supplementing light source corresponds to the opening.
Preferably, this light filling light source includes the lamp plate and is located the light filling lamp on this lamp plate, and the play plain noodles of this light filling lamp corresponds with this opening, and this lamp plate can be dismantled to connect in this shading bottom plate or this shading curb plate.
Preferably, the light supplement device further comprises a light supplement brightness enhancement film, and the light supplement brightness enhancement film is located on one side of the light supplement light guide plate, which is far away from the shading bottom plate.
Preferably, the dot density of the supplementary lighting light guide plate is greater than that of the light guide plate body.
Preferably, the light guide plate body and the light supplementing light guide plate are integrally formed, the bottom plate and the light shading bottom plate are integrally formed, and the side plate and the light shading side plate are integrally formed.
The utility model also discloses a display module assembly, this display module assembly include display panel and as above backlight unit, this display panel is located this backlight unit's top, this light filling device externally arranges this display panel in.
The utility model also discloses a display device, this display device include display housing, leading camera and as above display module assembly, this display module assembly fixed mounting is in this display housing, this leading camera embedding this display housing and be located this display module assembly's top, the position of this light filling device and the adjacent setting in position of this leading camera.
Preferably, the display device further comprises a keyboard shell, and the keyboard shell is movably connected with the display shell through connecting blocks located at the left end and the right end of the keyboard shell.
Preferably, the display device further comprises a shielding device located on the display housing, and the position of the shielding device corresponds to the position of the light supplementing device; the shielding device comprises: the mobile shielding plate is arranged on the display shell and comprises a shielding area for shielding light and a light transmitting area for transmitting light; when the shielding plate is positioned at the first station, the light shielding area of the shielding plate is opposite to the light supplementing device; when the shielding plate is located at the second station, the light-transmitting area of the shielding plate is opposite to the light supplementing device.
The embodiment of the utility model discloses backlight unit, display module assembly and display device, when display device's leading camera was shot or was video, the light filling device through backlight unit carries out the light filling to leading camera, can improve image quality greatly, has easy operation, convenient to use, circuit structure is simple, and low cost's advantage has better user experience.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 is a schematic top view of a backlight module according to an embodiment of the present invention;
fig. 2 is a schematic top view of a light supplement device in a backlight module according to an embodiment of the present invention;
fig. 3 is a schematic bottom view of a light supplement device in a backlight module according to an embodiment of the present invention;
fig. 4 is a schematic bottom view of a light supplement device in a backlight module according to a second embodiment of the present invention;
FIG. 5 is an exploded view of the light supplement device shown in FIG. 4;
FIG. 6 is a schematic structural diagram of the fill-in light source of FIG. 4;
fig. 7 is a schematic top view of a display module according to a third embodiment of the present invention;
fig. 8 is a schematic top view diagram of a display device according to a fourth embodiment of the present invention;
fig. 9 is a schematic top view of a display device according to a fourth embodiment of the present invention.
Detailed Description
In order to further explain the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, but not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
fig. 1 is a schematic top view of a backlight module according to an embodiment of the present invention; fig. 2 is a schematic top view of a light supplement device in a backlight module according to an embodiment of the present invention;
fig. 3 is a schematic view of a bottom view structure of a light supplement device in a backlight module according to an embodiment of the present invention.
As shown in fig. 1 to fig. 3, the present embodiment discloses a backlight module, which includes an accommodating space formed by enclosing a bottom plate 111 and a side plate 112, and a reflector (not shown in the drawings), a light guide plate body 120, an optical film set 130 and light bars 140 located at two sides of the light guide plate body 120, which are sequentially disposed in the accommodating space, where the light bars 140 include a plurality of LED lamps disposed at intervals, and a light filling device 200 located at an upper edge of the backlight module, and the side plate 112 is provided with a notch at a position corresponding to the light filling device 200; the light supplementing device 200 includes a light supplementing light guide plate 220 protruding from the edge of the light guide plate body 120, a light shading bottom plate 211 located at the bottom of the light supplementing light guide plate 220, and a light shading side plate 212 surrounding the edge of the light supplementing light guide plate 220, the light shading bottom plate 211 and the light shading side plate 212 surround the light supplementing light guide plate 220, one side of the light supplementing light guide plate 220 not shaded by the light shading side plate 212 directly corresponds to the light guide plate body 120, and one side of the light supplementing light guide plate 220 away from the light shading bottom plate 211 is a light supplementing surface of the light supplementing light guide plate 220.
In this embodiment, the optical film assembly 130 includes one or more diffusion sheets, or one or more prism sheets, or a combination of a diffusion sheet and a prism sheet, or a combination of a brightness enhancement film, a diffusion sheet and a prism sheet, and the like, and the specific components of the optical film assembly can be selected from one of a plurality of combinations according to the design requirements of the backlight module, which is not described herein again.
In this embodiment, the light guide plate body 120 and the light supplementing light guide plate 220 are integrally formed, the bottom plate 111 and the light shielding bottom plate 211 are integrally formed, and the side plate 112 and the light shielding side plate 212 are integrally formed, so that the light supplementing device 200 and the backlight module are integrally formed, and light leakage of the light supplementing device 200 is avoided.
In other embodiments, the light guide plate body 120 and the light supplementing light guide plate 220 can be separately manufactured, the bottom plate 111 and the light shielding bottom plate 211 can be separately manufactured, the side plate 112 and the light shielding side plate 212 can be separately manufactured, a movable member is arranged on the light supplementing device 200, a fixed member is arranged on the backlight module, and the light supplementing device 200 is detachably connected to the edge of the backlight module through the mutual cooperation of the movable member and the fixed member, so that the manufacturing process can be further simplified, and the production cost can be reduced.
In this embodiment, the light supplement device 200 only includes the light supplement light guide plate 220, the light shading bottom plate 211 and the light shading side plate 212, and through the light supplement device 200, light emitted from the light bar 140 of the backlight module can reach the light supplement light guide plate 220 through the light guide plate body 120, and light is emitted from one side of the light supplement light guide plate 220 away from the light shading bottom plate 211, so as to achieve the light supplement effect.
In other embodiments, the light supplement device 200 further includes a light supplement reflector disposed between the light supplement light guide plate 220 and the light-shielding bottom plate 211, and a light supplement brightness enhancement film disposed on a side of the light supplement light guide plate 220 away from the light-shielding bottom plate 211, so as to further improve light utilization and enhance light supplement effect. Furthermore, the light supplementing reflection sheet and the reflection sheet can be integrally formed, and the light supplementing brightness enhancement film and the brightness enhancement film can be integrally formed, so that the assembling operation of personnel can be facilitated.
In the present embodiment, the dot density of the light supplementing light guiding plate 220 is greater than that of the light guiding plate body 120. The dot density of the light supplement light guide plate 220 is greater than that of the light guide plate body, so that the light supplement light guide plate 220 can be used for compensating the light emergent brightness of the light supplement light guide plate 220, and the light supplement effect can be further improved. The lattice points are approximately one or more of circular grooves, square grooves, rhombic grooves, conical grooves and spherical grooves; or the dots are formed on the light emitting surfaces of the light guide plate body 120 and the light filling light guide plate 220 by a process that can be understood by those skilled in the art, such as stamping or etching.
The backlight module disclosed by the embodiment has the advantages that the light supplementing device is additionally arranged at the edge of the backlight module, and the light supplementing device is used for supplementing light to the front camera outside the backlight module, so that the image quality can be greatly improved, and better user experience is realized.
Example two:
fig. 4 is a schematic bottom view of a light supplement device in a backlight module according to a second embodiment of the present invention; FIG. 5 is an exploded view of the light supplement device shown in FIG. 4; fig. 6 is a schematic structural diagram of the fill-in light source in fig. 4.
As shown in fig. 4 to 6, the backlight module disclosed in this embodiment has substantially the same structure as the backlight module disclosed in the first embodiment, except that: the backlight module disclosed in this embodiment has an opening 213 on the light-shielding bottom plate 211'; the light supplement device 200 'further includes a light supplement light source 240 detachably connected to the light-shielding bottom plate 211', and a light exit surface of the light supplement light source 240 corresponds to the opening 213.
In this embodiment, the light supplement light source 240 includes a lamp panel 241 and a light supplement lamp 242 located on the lamp panel 241, and the light supplement lamp 242 is, for example, an LED lamp. The light-emitting surface of the light supplement lamp 242 corresponds to the opening 213, and the lamp panel 241 is detachably connected to the light-shielding bottom plate 211'.
Specifically, the lamp panel 241 is provided with a positive electrode pin 243 and a negative electrode pin 244 connected to the light supplement lamp 242 on a side away from the light supplement lamp 242, and the light supplement lamp 242 may be electrically connected to the circuit board through the positive electrode pin 243 and the negative electrode pin 244, so as to turn on and off the light supplement lamp 242.
Specifically, the lamp panel 241 is provided with double-sided tapes 245 at two ends of the light supplement lamp 242, the light supplement light source 240 is attached to the light shielding bottom plate 211' through the double-sided tapes 245, and at this time, the light emitting surface of the light supplement lamp 242 faces the position of the opening 213. In other embodiments, the supplementary lighting light source may be fixed in the supplementary lighting device by other detachable connection methods, which are not limited herein.
In other embodiments, the light supplement device 200 ' further includes a light supplement reflector disposed between the light supplement light guide plate 220 and the light-shielding bottom plate 211 ', and the light supplement reflector is absent at the position of the opening 213, and the light supplement brightness enhancement film can be disposed at a side of the light supplement light guide plate 220 away from the light-shielding bottom plate 211 ', so as to further improve light utilization and enhance light supplement effect. Furthermore, the light supplementing reflection sheet and the reflection sheet can be integrally formed, and the light supplementing brightness enhancement film and the brightness enhancement film can be integrally formed, so that the assembling operation of personnel can be facilitated.
In other embodiments, the backlight module can also be provided with an opening on the shading side plate; the light-emitting surface of the light-supplementing lamp of the light-supplementing light source corresponds to the opening, and the lamp panel of the light-supplementing light source is detachably connected to the shading side plate.
In the backlight module disclosed in this embodiment, the light supplement light source is added to the light supplement device, so that the light supplement effect of the light supplement device can be further increased.
Example three:
fig. 7 is a schematic top view of a display module according to a third embodiment of the present invention.
As shown in fig. 7, the present embodiment further discloses a display module, which includes a display panel 300 and the backlight module of the second embodiment, wherein the display panel 300 is located above the backlight module, and the light supplement device 200' is externally disposed on the display panel 300.
The display module assembly disclosed by the embodiment adds the light supplementing device through the backlight module assembly, adds the light supplementing light source in the light supplementing device, supplements light to the front camera outside the backlight module assembly through the light supplementing device, can greatly improve the image quality, and has better user experience.
Example four:
fig. 8 is a schematic top view diagram of a display device according to a fourth embodiment of the present invention; fig. 9 is a schematic top view of a display device according to a fourth embodiment of the present invention.
As shown in fig. 4 to 9: the embodiment further discloses a display device, which includes a display housing 410, a front camera 420 and the display module according to the second embodiment, wherein the display module includes the display panel 300 and the backlight module, the backlight module packages the light supplement device 200 ', and the light supplement device 200' is externally disposed on the display panel 300. Wherein, the display device includes but is not limited to: electronic terminals such as mobile phones and tablet computers.
In this embodiment, the display module is fixedly installed in the display housing 410, the display panel 300 is surrounded by the display housing 410, and the display panel 300 is used for displaying images; the front camera 420 is embedded in the display housing 410 and located above the display panel 300, and the light supplement device 200' is disposed adjacent to the front camera 420.
In this embodiment, the display device further includes a keyboard housing (not shown), and the keyboard housing is movably connected to the display housing 410 through connection blocks located at the left and right ends of the keyboard housing, so that the display housing 410 can rotate relative to the keyboard housing to open and close the display device.
In this embodiment, the display device further includes a shielding device 430 located on the display housing 410, and the position of the shielding device 430 corresponds to the position of the light supplement device 200 'and is located right above the light supplement device 200'. The shielding apparatus 430 includes: a shielding plate 431 movably installed on the display housing 410 and a handle 432 installed outside the shielding plate 431, wherein the shielding plate 431 includes a light shielding region for shielding light and a light transmitting region for transmitting light; wherein the shutter 431 has a first station and a second station in the path of movement.
As shown in fig. 8, when the shielding plate 431 is located at the first station, the light shielding area of the shielding plate 431 is opposite to the light supplement device 200 ', and the light supplement of the light supplement device 200' is shielded by the shielding plate 431.
As shown in fig. 9, when the shielding plate 431 is located at the second station, the light-transmitting area of the shielding plate 431 is opposite to the light supplement device 200 ', and the light supplement light of the light supplement device 200' is transmitted out of the light-transmitting area of the shielding plate 431 and used for supplementing light to the front camera 420 of the display device, so as to improve the quality of the image.
The display device described in this embodiment, its backlight unit has increased solitary light filling device 200 'in the position that is close to leading camera 420, carries out the light filling through this light filling device 200's light filling light guide plate and light filling light source to leading camera, can improve image quality greatly, has better user experience.
The display device disclosed in this embodiment can set up multiple light filling modes, for example:
when the ambient light is bright enough and no light compensation is needed, the shielding plate of the shielding device 430 is moved to the first station, and at this time, the light shielding area of the shielding plate 431 is opposite to the light compensation device 200 ', and the light compensation of the light compensation device 200' is shielded by the shielding plate 431.
A first fill-in mode:
when the ambient light is slightly dark and requires light supplement with a certain brightness, the shielding plate 431 of the shielding device 430 is moved to the second station, the light-transmitting area of the shielding plate 431 is opposite to the light supplement device 200 ', the light supplement device 200 ' supplements light to the light supplement light guide plate through light emitted by the light bar, and the light supplement of the light supplement device 200 ' is transmitted out from the light-transmitting area of the shielding plate 431.
A second supplementary lighting mode:
when the ambient light is dark and strong light compensation is needed, the shielding plate 431 of the shielding device 430 is moved to the second station, a light-transmitting area of the shielding plate 431 is opposite to the light compensation device 200 ', the light compensation device 200 ' performs light compensation on the light compensation light guide plate through light emitted by the light bar, and the light compensation of the light compensation device 200 ' is transmitted out from the light-transmitting area of the shielding plate 431; meanwhile, the light supplement light source 240 is turned on, the light supplement intensity of the light supplement device 200 'is increased, and the front camera 420 is strongly supplemented with light through the light supplement device 200'.
According to the display device disclosed by the embodiment, when the front camera of the display device takes a picture or videos, the light supplement device of the backlight module is used for supplementing light to the front camera, so that the image quality can be greatly improved, and better user experience is achieved; in addition, multiple light supplement modes can be set, light supplement is selectively carried out on the front camera according to the requirements of ambient light and light supplement, and the light supplement device has the advantages of being simple in operation, convenient to use, simple in circuit structure, low in cost and high in practicability.
The foregoing is a complete disclosure of the present invention, and in this specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including other elements not expressly listed, in addition to those elements listed.
In the present specification, the terms of front, rear, upper, lower and the like are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only used for the sake of clarity and convenience in technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A backlight module comprises an accommodating space formed by enclosing a bottom plate and a side plate, and a reflector plate, a light guide plate body and an optical diaphragm group which are sequentially arranged in the accommodating space, and is characterized by also comprising a light supplementing device positioned at the edge of the backlight module, wherein the side plate is provided with a notch at a position corresponding to the light supplementing device;
the light supplementing device comprises a light supplementing light guide plate convexly arranged at the edge of the light guide plate body, a shading bottom plate positioned at the bottom of the light supplementing light guide plate and a shading side plate arranged at the edge of the light supplementing light guide plate in a surrounding mode.
2. The backlight module as claimed in claim 1, wherein the light-shielding bottom plate or the light-shielding side plate is provided with an opening; the light supplementing device further comprises a light supplementing light source detachably connected to the shading bottom plate or the shading side plate, and a light emitting surface of the light supplementing light source corresponds to the opening.
3. The backlight module according to claim 2, wherein the light supplement light source comprises a lamp panel and a light supplement lamp arranged on the lamp panel, a light emergent surface of the light supplement lamp corresponds to the opening, and the lamp panel is detachably connected to the light shading bottom plate or the light shading side plate.
4. The backlight module as claimed in claim 1, wherein the light supplement device further comprises a light supplement brightness enhancement film, and the light supplement brightness enhancement film is located on a side of the light supplement light guide plate away from the light-shielding bottom plate.
5. The backlight module as claimed in claim 1, wherein the light supplementing light guide plate has a dot density greater than that of the light guide plate body.
6. The backlight module as claimed in claim 1, wherein the light guide plate body and the light supplement light guide plate are integrally formed.
7. A display module, comprising a display panel and the backlight module as claimed in any one of claims 1 to 6, wherein the display panel is disposed above the backlight module, and the light supplement device is disposed outside the display panel.
8. The display device is characterized by comprising a display shell, a front camera and the display module as claimed in claim 7, wherein the display module is fixedly installed in the display shell, the front camera is embedded into the display shell and located above the display module, and the position of the light supplementing device is adjacent to that of the front camera.
9. The display device according to claim 8, further comprising a keyboard housing, wherein the keyboard housing is movably connected to the display housing by connecting blocks at left and right ends of the keyboard housing.
10. The display device according to claim 8, further comprising a shielding device on the display housing, wherein the shielding device is located at a position corresponding to the light supplement device;
the shielding device comprises: the mobile display device comprises a display shell, a shielding plate and a handle, wherein the shielding plate is movably arranged on the display shell, the handle is arranged on the outer side of the shielding plate, and the shielding plate comprises a shielding area for shielding light and a light transmitting area for transmitting the light; the shielding plate is provided with a first station and a second station in a moving path, and when the shielding plate is positioned at the first station, a light shielding area of the shielding plate is opposite to the light supplementing device; when the shielding plate is located at the second station, the light-transmitting area of the shielding plate is opposite to the light supplementing device.
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| CN202020280642.2U CN211956946U (en) | 2020-03-09 | 2020-03-09 | Backlight module, display module and display device |
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| CN202020280642.2U CN211956946U (en) | 2020-03-09 | 2020-03-09 | Backlight module, display module and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113031346A (en) * | 2021-03-26 | 2021-06-25 | 武汉华星光电技术有限公司 | Backlight module and display method of display equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113031346A (en) * | 2021-03-26 | 2021-06-25 | 武汉华星光电技术有限公司 | Backlight module and display method of display equipment |
| CN113031346B (en) * | 2021-03-26 | 2022-05-31 | 武汉华星光电技术有限公司 | Backlight module and display method of display equipment |
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