CN110673390A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN110673390A CN110673390A CN201910852641.2A CN201910852641A CN110673390A CN 110673390 A CN110673390 A CN 110673390A CN 201910852641 A CN201910852641 A CN 201910852641A CN 110673390 A CN110673390 A CN 110673390A
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- backlight module
- iron frame
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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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- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a backlight module and a display device, wherein the backlight module comprises an iron frame, a light guide plate, a through hole and a supporting component; the light guide plate is arranged above the iron frame; the through hole penetrates through the iron frame and the light guide plate; the supporting component is arranged at the through hole and connected to the iron frame. The technical effect of the invention is to provide a backlight module and a display device, which are characterized in that a supporting component is additionally arranged to be combined with an iron frame, and the supporting component is fixed by using a glue dispensing mode or a double-sided adhesive tape, so that the through hole of the backlight module is opaque, and the effect of preventing light leakage is realized.
Description
Technical Field
The invention relates to the technical field of display, in particular to a backlight module and a display device.
Background
With the development of display technology, a full-screen technology appears, and the technology is widely applied to liquid crystal display modules. In a small and medium-sized liquid crystal module, a camera, a microphone and the like are installed in a hole formed in a liquid crystal module such as a mobile phone, a tablet, a notebook and the like, so that a hole needs to be correspondingly dug in a corresponding effective display area when the liquid crystal display module is designed.
At present, the scheme of digging holes in the effective display area of the liquid crystal display module generally includes that the liquid crystal panel and the backlight module are dug simultaneously to form through holes, or only the backlight module is dug to form through holes, and the two schemes enable the liquid crystal display module to have no display function in the through hole area of the effective display area after being lightened.
In the prior art, in order to improve the screen ratio of the liquid crystal display module, the aperture of the hole digging area is generally reduced. At backlight unit's digging hole department, effectively reduce the aperture through buckling pure chase, but among the prior art, the technique in this field is difficult to make the chase reach higher height of buckling, leads to backlight unit chase height of buckling to be not enough easily, and then causes the problem of digging downthehole light leak and effective display area edge light leak. Wherein, the height of buckling refers to the height when the bending top of iron frame and through-hole position have better planarization after the iron frame buckles promptly.
Disclosure of Invention
The invention aims to provide a backlight module and a display device, and aims to solve the technical problems of light leakage in an excavated hole and light leakage at the edge of an effective display area in the prior art.
In order to achieve the above object, the present invention provides a backlight module, which includes an iron frame, a light guide plate, a through hole and a supporting member; the light guide plate is arranged above the iron frame; the through hole penetrates through the iron frame and the light guide plate; the supporting component is arranged at the through hole and connected to the iron frame.
Further, the iron frame comprises a first part, a second part, a third part and a fourth part; the second part is connected to the first part and forms an obtuse angle with the first part; the third part is connected to the second part, forms an obtuse angle with the second part, and is parallel to the first part; a fourth part connected to the third part forming a right angle or an acute angle with the third part.
Further, the support member includes a first support portion and a second support portion; the first support portion is connected to the third member; the second support portion is connected to the first support portion; wherein the second supporting part is horizontally arranged; the first supporting part and the second supporting part are both annular.
Furthermore, the backlight module further comprises a light shading glue filled in a gap between the first supporting part and the third and fourth parts.
Further, the iron frame comprises a first part, a second part and a third part; the second part is connected to the first part and forms an obtuse angle with the first part; the third member is connected to the second member, forms an obtuse angle with the second member, and is parallel to the first member.
Further, the support member includes a second support portion and a third support portion that are horizontally disposed; and a first support part having one end connected to the second support part and the other end connected to the third support part; the third supporting part is connected to the third component through a light-shielding glue layer, and the first supporting part, the second supporting part and the third supporting part are all annular.
Further, an included angle between the center line of the first supporting portion and the center line of the second supporting portion is greater than or equal to 60 degrees and less than or equal to 90 degrees.
Furthermore, the backlight module also comprises a reflecting sheet, a diffusion sheet and a prism sheet; the reflector plate is arranged on the surface of one side of the iron frame; the light guide plate is arranged on the surface of one side of the reflector plate, which is far away from the iron frame; the diffusion sheet is arranged on the surface of one side of the light guide plate, which is far away from the iron frame; the prism sheet is arranged on the surface of the diffusion sheet, which is far away from one side of the iron frame.
Further, the backlight module further comprises an adhesive tape which is annular and comprises an inner circle and an outer circle, one end, close to one side of the outer circle, of the bottom surface is bonded to the prism sheet, and the other end, close to one side of the inner circle, of the bottom surface is bonded to the second supporting portion. To achieve the above object, the present invention further provides a display device including the backlight module as described above.
The technical effect of the invention is to provide a backlight module and a display device, which are characterized in that a supporting component is additionally arranged to be combined with an iron frame, and the supporting component is fixed by using a glue dispensing mode or a double-sided adhesive tape, so that the through hole of the backlight module is opaque, and the effect of preventing light leakage is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a backlight module described in embodiment 1;
FIG. 2 is a schematic structural diagram of a display device according to embodiment 1;
fig. 3 is a schematic structural diagram of the backlight module according to embodiment 2;
fig. 4 is a schematic structural diagram of the display device according to embodiment 2.
The components of the drawings are identified as follows:
1, an iron frame; 2, a reflector plate;
3, a light guide plate; 4 a diffusion sheet;
5 prism sheet; 6 through holes;
7 a support member; 8, shading glue; 9, adhesive tape; 10 light-shading glue layer;
11 a first component; 12 a second component; 13 a third component; 14 a fourth component;
71 a first support part; 72 a second support portion; 73 a third support portion;
100 backlight module; 200 display panel.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings for illustrating the invention and enabling those skilled in the art to fully describe the technical contents of the present invention so that the technical contents of the present invention can be more clearly and easily understood. The present invention may, however, be embodied in many different forms of embodiments and the scope of the present invention should not be construed as limited to the embodiments set forth herein.
Example 1
As shown in fig. 1, the present embodiment provides a backlight module, which includes an iron frame 1, a reflective sheet 2, a light guide plate 3, a diffusion sheet 4, a prism sheet 5, a through hole 6, and a supporting member 7.
The reflecting sheet 2, the light guide plate 3, the diffusion sheet 4 and the prism sheet 5 are sequentially arranged on the upper surface of the iron frame 1, when a backlight source is arranged on one side of the iron frame 1, the backlight source is a side-emitting LED and is used for providing the backlight source for the whole backlight module, and the light guide plate 3 is used for effectively distributing light rays emitted by the backlight source in a backlight window area to form a surface light source.
The through hole 6 penetrates through the iron frame 1, the reflector plate 2, the light guide plate 3, the diffusion sheet 4 and the prism sheet 5 in sequence, and the support member 7 is arranged in the through hole 6 and fixedly connected to the iron frame 1 through a light shielding adhesive 8. The reflector plate 2 is used for recycling light guided out by the light guide plate 3, the diffusion sheet 4 is used for atomizing light to achieve the effect of a surface light source, and the prism sheet 5 is used for converging light and improving the brightness of the module. The shape of the through hole 6 can be any one of circular, oval, square and prismatic, and the shape can also be other special-shaped holes.
Further, the iron frame 1 includes a first member 11, a second member 12, a third member 13, and a fourth member 14, which are integrally formed. The second part 12 is connected to the first part 11 and forms an obtuse angle with the first part 11. The third part 13 is connected to the second part 12 and forms an obtuse angle with the second part 12 and is parallel to the first part 11. The fourth part 14 is connected to the third part 13 forming a right or acute angle with the third part 13. The fourth member 14 is provided on the wall of the through-hole 6 and has a cylindrical shape. The height of fourth part 14 is the height of buckling of chase 1, the height of buckling is less than 0.6mm to make chase 1 have lower height of buckling, make the display module assembly can be light-tight, and realize the effect of leak protection light.
The support member 7 includes a first support portion 71 and a second support portion 72. The bottom face of the first support portion 71 is connected to the third member 13 in a nesting manner; the second support portion 72 is connected to the first support portion 71. A gap is formed between one side surface of the first support portion 71 and the third member 13 and the fourth member 14.
The backlight module further comprises a light shielding glue 8, liquid glue is dripped to the gap in a dispensing mode and is filled in the gap, so that the first supporting portion 71, the third component 13 and the fourth component 14 are fixed into a whole, and the light shielding glue 8 is formed after the liquid glue is cured. The fourth member 14 is bent upward relative to the third member, and the gap enclosed by the first supporting portion 71, the third member 13 and the fourth member 14 is filled with the light shielding glue 8, so that the lower portion of the through hole 6 has the effect of preventing light leakage. The light shielding adhesive 8 includes, but is not limited to, hot melt adhesive, UV adhesive, and the like, and has high viscosity.
In this embodiment, the first supporting portion 71 and the second supporting portion 72 are both annular, and each position of the lower portion of the through hole 6 has a good light leakage preventing effect.
The included angle between the center line of the first support portion 71 and the center line of the second support portion 72 is greater than or equal to 60 degrees and less than or equal to 90 degrees, preferably 75 degrees and 80 degrees. The material of the support member 7 may be a metal material or a polymer material. The metal material is preferably SUS304(304 stainless steel) or a copper alloy, and the polymer material is preferably opaque polypropylene (PP) or Polycarbonate (PC). The cross section of the supporting component 7 is in a cone frustum shape, the thickness of the supporting component is 0.03 mm-1.2 mm, and the light transmittance is less than 1%, so that each position of the through hole 6 has a good light leakage prevention effect. The thickness of the support member 7 is preferably 0.06mm, 0.08mm, 0.1 mm.
As shown in fig. 1, the backlight module further includes a light-tight adhesive tape 9, which is an annular adhesive tape and includes an inner circle and an outer circle, wherein the bottom surface of the annular adhesive tape close to the outer circle is bonded to the prism sheet 5, and the bottom surface of the annular adhesive tape close to the inner circle is bonded to the second support portion 72. The second support 72 is disposed opposite to the prism sheet 5 and keeps a certain distance, and the second support 72 is connected to the prism sheet 5 through the annular rubber strip 9.
When the width of the bonding part of the adhesive tape 9 and the second support part 72 is greater than the thickness of the second support part 72, the adhesive tape 9 can completely cover the gap between the second support part 72 and the prism sheet 5, so that the upper part of the through hole 6 has the effect of preventing light leakage.
Since the upper and lower portions of the through-hole 6 have excellent light leakage preventing effects, the light of the light guide plate 3 does not leak from the through-hole 6, and thus the through-hole 6 has excellent light leakage preventing effects.
As shown in fig. 2, the present embodiment further provides a display device, which includes the backlight module 100 and the display panel 200, wherein the display panel 200 is disposed on the upper surface of the backlight module 100 and forms a sealed structure with the backlight module 100, and the through hole 6 can be used for placing devices such as a camera, a microphone, and a flash lamp.
The adhesive tape 9 is an annular structure connected end to end, and tightly attaches the backlight module 100 to the display panel 200. Specifically, the adhesive tape 6 connects the prism sheet 5, the supporting member 7 and the display panel 200 together to form a sealed structure, so that light scattered from the light guide plate 3 is shielded by the adhesive tape 9 or reflected by the devices in the through holes 6 to enter the light guide plate 3 again, thereby preventing light leakage from the through holes 6.
The display device may be: any product or component with a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
This embodiment provides a backlight unit and display device, combines with the chase through increasing supporting component to it is fixed with supporting component to use the mode of gluing, thereby makes backlight unit's through-hole department light-tight, realizes the effect of leak protection light, and reduces the height of buckling of chase.
Example 2
As shown in fig. 3, the present embodiment provides a backlight module, which includes an iron frame 1, a reflective sheet 2, a light guide plate 3, a diffusion sheet 4, a prism sheet 5, a through hole 6, and a supporting member 7.
The reflecting sheet 2, the light guide plate 3, the diffusion sheet 4 and the prism sheet 5 are sequentially arranged on the upper surface of the iron frame 1, when a backlight source is arranged on one side of the iron frame 1, the backlight source is a side-emitting LED and is used for providing a backlight source for the whole backlight module, and the light guide plate 3 is used for effectively distributing light rays emitted by the backlight source in a backlight window area to form a surface light source.
The through hole 6 penetrates through the iron frame 1, the reflector plate 2, the light guide plate 3, the diffusion sheet 4 and the prism sheet 5 in sequence, and the support member 7 is arranged in the through hole 6 and fixedly connected to the iron frame 1 through a light shielding adhesive 8. The reflector plate 2 is used for recycling light guided out by the light guide plate 3, the diffusion sheet 4 is used for atomizing light to achieve the effect of a surface light source, and the prism sheet 5 is used for converging light and improving the brightness of the module. The shape of the through hole 6 can be any one of circular, oval, square and prismatic, and the shape can also be other special-shaped holes.
Further, the iron frame 1 includes a first member 11, a second member 12, and a third member 13 which are integrally formed. The second part 12 is connected to the first part 11 and forms an obtuse angle with the first part 11. The third part 13 is connected to the second part 12 and forms an obtuse angle with the second part 12 and is parallel to the first part 11.
The support member 7 includes a first support portion 71, a second support portion 72, and a second support portion 73. One end of the first support portion 71 is connected to the horizontally disposed second support portion 72, and the other end thereof is connected to the horizontally disposed second support portion 73.
The backlight module further comprises a light-shielding adhesive layer 10 arranged between the second supporting portion 73 and the third component 13, and the second supporting portion 73 and the third component 13 are fixedly connected together through the light-shielding adhesive layer 10. The light-shielding adhesive layer 10 is a double-sided adhesive tape, and the double-sided adhesive tape includes, but is not limited to, a black/white double-sided adhesive tape (a double-sided adhesive tape with a certain gray scale), a black double-sided adhesive tape, a white double-sided adhesive tape, and a composite double-sided adhesive tape with a buffering function.
In this embodiment, the first support portion 71, the second support portion 72 and the third support portion 73 are all ring-shaped. When the light emitted by the backlight source irradiates the through hole 6, the light is shielded by the light-shielding adhesive layer 10, so that each position of the lower part of the through hole 6 has a good light leakage prevention effect.
The included angle between the center line of the first support portion 71 and the center line of the second support portion 72 is greater than or equal to 60 degrees and less than or equal to 90 degrees, preferably 75 degrees and 80 degrees. Since the second support portion 72 and the third support portion 73 are both horizontally disposed, and the second support portion 72 is parallel to the third support portion 73, an included angle between a center line of the third support portion 73 and a center line of the second support portion 72 is greater than or equal to 60 degrees and less than or equal to 90 degrees, preferably 75 degrees and 80 degrees.
In this embodiment, the material of the supporting member 7 may be a metal material or a polymer material. The metal material is preferably SUS304(304 stainless steel) or a copper alloy, and the polymer material is preferably opaque polypropylene (PP) or Polycarbonate (PC). The cross section of the supporting component 7 is in a cone frustum shape, the thickness of the supporting component is 0.03 mm-1.2 mm, and the light transmittance is less than 1%, so that each position of the through hole 6 has a good light leakage prevention effect, and the display effect of the display panel is improved. The thickness of the support member 7 is preferably 0.06mm, 0.08mm, 0.1 mm.
As shown in fig. 3, the backlight module further includes a light-tight adhesive tape 9, which is an annular adhesive tape and includes an inner circle and an outer circle, wherein the bottom surface of the annular adhesive tape close to the outer circle is bonded to the prism sheet 5, and the bottom surface of the annular adhesive tape close to the inner circle is bonded to the second support portion 72. The second support 72 is disposed opposite to the prism sheet 5 and keeps a certain distance, and the second support 72 is connected to the prism sheet 5 through the annular rubber strip 9. When the width of the bonding position of the contact surface of the adhesive tape 9 and the second support part 72 is greater than the thickness of the second support part 72, the adhesive tape 9 can completely cover the gap between the second support part 72 and the prism sheet 5, so that the upper part of the through hole 6 has the light leakage prevention effect.
Since the upper and lower portions of the through-hole 6 have excellent light leakage preventing effects, the light of the light guide plate 3 does not leak from the through-hole 6, and thus the through-hole 6 has excellent light leakage preventing effects.
In comparison with embodiment 1, the bezel 1 and the support member 7 of the present embodiment are different from the bezel and the support member of embodiment 1, and the support member is fixed using a light-shielding adhesive layer. This embodiment is compared in the shading glue of embodiment 1, has got rid of the point and has glued technology, makes backlight unit's equipment is simpler, the cost is lower, and in addition, the fourth part has been removed to this embodiment chase, has saved the part that the chase is buckled to need not to consider the height of buckling of chase, when widening the aperture of through-hole, through the characteristic of shading glue film self, prevent that the phenomenon of light leak from appearing in through-hole department.
As shown in fig. 4, the present embodiment further provides a display device, which includes the backlight module 100 and the display panel 200, wherein the display panel 200 is disposed on the upper surface of the backlight module 100 and forms a sealed structure with the backlight module 100, and the through hole 6 can be used for placing a camera, a microphone, a flash lamp, and other devices.
The adhesive tape 9 is an annular structure connected end to end, and tightly attaches the backlight module 100 to the display panel 200. Specifically, the adhesive tape 6 connects the prism sheet 5, the supporting member 7 and the display panel 200 together to form a sealed structure, so that light scattered from the light guide plate 3 is shielded by the adhesive tape 9 or reflected by the devices in the through holes 6 to enter the light guide plate 3 again, thereby preventing light leakage from the through holes 6.
The display device may be: any product or component with a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
This embodiment provides a backlight unit and display device, combines through increasing support component and chase to use the double faced adhesive tape to fix support component, thereby make backlight unit's through-hole department light-tight, realize the effect of leak protection light, and need not to consider the height of buckling of chase.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A backlight module, comprising:
an iron frame;
the light guide plate is arranged above the iron frame;
the through hole penetrates through the iron frame and the light guide plate; and
and the supporting component is arranged at the through hole and is connected to the iron frame.
2. The backlight module of claim 1, wherein the bezel comprises
A first member;
a second part connected to the first part and forming an obtuse angle with the first part;
a third member connected to the second member, forming an obtuse angle with the second member, and being parallel to the first member; and
a fourth part connected to the third part forming a right angle or an acute angle with the third part.
3. The backlight module of claim 2, wherein the support member comprises
A first support portion connected to the third member; and
a second support part connected to the first support part;
wherein the second supporting part is horizontally arranged;
the first supporting part and the second supporting part are both annular.
4. The backlight module of claim 3, further comprising
And the shading glue is filled in the gap between the first supporting part and the third part and the gap between the first supporting part and the fourth part.
5. The backlight module of claim 1,
the iron frame comprises
A first member;
a second part connected to the first part and forming an obtuse angle with the first part; and
a third member connected to the second member, forming an obtuse angle with the second member, and parallel to the first member.
6. The backlight module of claim 5,
the support member comprises
A second support part and a third support part which are horizontally arranged; and
a first support part having one end connected to the second support part and the other end connected to the third support part;
wherein the third supporting part is connected to the third component through a light-shielding adhesive layer,
the first supporting part, the second supporting part and the third supporting part are all annular.
7. The backlight module according to claim 3 or 5,
the included angle between the center line of the first supporting part and the center line of the second supporting part is greater than or equal to 60 degrees and less than or equal to 90 degrees.
8. The backlight module of claim 1, further comprising
The reflector plate is arranged on the surface of one side of the iron frame;
the light guide plate is arranged on the surface of one side of the reflector plate, which is far away from the iron frame;
the diffusion sheet is arranged on the surface of one side of the light guide plate, which is far away from the iron frame; and
and the prism sheet is arranged on the surface of the diffusion sheet, which is far away from one side of the iron frame.
9. The backlight module of claim 8, further comprising
The adhesive tape is annular and comprises an inner circle and an outer circle, one end of the bottom surface, close to one side of the outer circle, of the adhesive tape is adhered to the prism sheet, and the other end of the bottom surface, close to one side of the inner circle, of the adhesive tape is adhered to the second supporting portion.
10. A display device comprising the backlight module according to any one of claims 1 to 9.
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US11537000B2 (en) | 2020-06-24 | 2022-12-27 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Display module and display device |
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CN109683399A (en) * | 2019-02-28 | 2019-04-26 | 厦门天马微电子有限公司 | Display module and display device |
CN209267639U (en) * | 2019-03-27 | 2019-08-16 | 信利光电股份有限公司 | A kind of display device |
CN109887410A (en) * | 2019-03-28 | 2019-06-14 | 厦门天马微电子有限公司 | A kind of production method of display device and display device |
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 |
Cited By (2)
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US11537000B2 (en) | 2020-06-24 | 2022-12-27 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Display module and display device |
US11536890B2 (en) * | 2020-09-17 | 2022-12-27 | Beijing Boe Optoelectronics Technology Co., Ltd. | Backlight module including annular light-shielding structure and display device including the same |
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