CN108845450B - Display module and electronic device - Google Patents

Display module and electronic device Download PDF

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Publication number
CN108845450B
CN108845450B CN201810703175.7A CN201810703175A CN108845450B CN 108845450 B CN108845450 B CN 108845450B CN 201810703175 A CN201810703175 A CN 201810703175A CN 108845450 B CN108845450 B CN 108845450B
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China
Prior art keywords
hole
mounting
light
display
display panel
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CN201810703175.7A
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Chinese (zh)
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CN108845450A (en
Inventor
唐义梅
成蛟
刘敏
欧阳志斌
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201810703175.7A priority Critical patent/CN108845450B/en
Priority to CN202110549760.8A priority patent/CN113219706B/en
Publication of CN108845450A publication Critical patent/CN108845450A/en
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/02Bodies
    • G03B17/12Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The application discloses a display assembly and an electronic device. The display assembly comprises a cover plate, a display panel and a backlight module which are sequentially stacked; the cover plate is provided with a light-transmitting area; the display panel is provided with a display area corresponding to the light-transmitting area, a first installation through hole is formed in the display area, a light shielding layer is coated on the hole wall of the first installation through hole and provided with a first end and a second end which are opposite, and the first end is attached to the light-transmitting area; the backlight module is provided with a second mounting through hole aligned with the first mounting through hole, one surface of the backlight module facing the light shielding layer is provided with a filling groove, and the second end of the backlight module is filled in the filling groove. The electronic equipment comprises a camera module and a display component; the camera module extends into the second mounting through hole so that external light penetrates through the light-transmitting area and penetrates through the first mounting through hole to enter the camera module; the shading layer isolates the camera module from the display panel. The scheme of this application can promote electronic equipment's screen to account for than.

Description

Display module and electronic device
Technical Field
The application relates to the technical field of electronic products, in particular to a display assembly and electronic equipment.
Background
The electronic equipment with the high screen occupation ratio has a larger display area, and better user experience is provided for users. At present, mainstream manufacturers are researching and developing technologies for improving the screen occupation ratio of electronic equipment.
Content of application
The application provides a display assembly and an electronic device having the same.
A display assembly comprises a cover plate, a display panel and a backlight module which are sequentially stacked; the cover plate is provided with a light-transmitting area; the display panel is provided with a display area corresponding to the light-transmitting area, a first mounting through hole is formed in the display area, a light shielding layer is coated on the hole wall of the first mounting through hole, the light shielding layer is provided with a first end and a second end which are opposite, and the first end is attached to the light-transmitting area; the backlight module is provided with a second mounting through hole aligned with the first mounting through hole, one surface of the backlight module facing the light shielding layer is provided with a filling groove, and the second end of the backlight module is filled in the filling groove.
An electronic device comprises a camera module and the display component; the camera module extends into the second mounting through hole so that external light penetrates through the light-transmitting area and the first mounting through hole to enter the camera module; the shading layer isolates the camera module from the display panel.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic cross-sectional view of a display module according to an embodiment of the present application;
FIG. 2 is an enlarged partial schematic view of FIG. 1 at A;
FIG. 3 is a schematic view of a portion of the enlarged structure at B in FIG. 2;
FIG. 4 is another enlarged partial schematic view of FIG. 1 at A;
FIG. 5 is an exploded view of the backlight module shown in FIG. 4;
FIG. 6 is an enlarged partial schematic view of FIG. 5 at C;
FIG. 7 is a schematic view of a light propagation path within a light guide plate according to one embodiment;
FIG. 8 is a schematic view of a light propagation path in a light guide plate according to another embodiment;
fig. 9 is a front view structural diagram of an electronic device according to an embodiment of the present application;
FIG. 10 is a schematic cross-sectional diagram of the electronic device of FIG. 9;
fig. 11 is a partially enlarged schematic view of a portion a of fig. 10.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a display assembly and an electronic device with the same. The display component is used for displaying pictures. The electronic device includes, but is not limited to, products such as a mobile phone, a tablet computer, a notebook computer, and a wearable device. The electronic device may have a functional module, which is a module having a certain mechanical structure and circuit structure, capable of receiving user or environment feedback, collecting user or environment data, and implementing a specific function. The functional module includes but is not limited to camera module, flash light module, infrared module, range finding module, light sense module, face identification module, iris identification module, fingerprint module etc.. In the following embodiments, the functional module is taken as a camera module for example. Of course, the scheme of the present application is not limited thereto in practice.
As shown in fig. 1-3, the display assembly 10 includes a cover plate 11, a display panel 12, and a backlight module 13, which are sequentially stacked, wherein the cover plate 11 and the backlight module 13 are respectively disposed on two opposite sides of the display panel 12.
Specifically, the cover plate 11 covers the display panel 12 to protect the display panel 12. The cover plate 11 may be attached to the display panel 12 by an optically transparent adhesive 14, for example. Of course, the cover plate 11 and the display panel 12 may be connected in other ways. The cover plate 11 has a light-transmitting area, and the display panel 12 has a display area, the light-transmitting area corresponding to the display area. The corresponding finger light-transmitting area is basically superposed with the display area in position and has basically the same area, so that the light emitted by the display area enters human eyes to form a picture through the light-transmitting area. The cover 11 also has opaque regions to shield components covered under the cover 11 from the user.
The display panel 12 is used for displaying a picture, and the backlight module 13 is used as a backlight source of the display panel 12. The display panel 12 has a display region (i.e., a region where pixels are arranged) for displaying a screen, and the display region is transparent to light. The display panel 12 further has a non-display region that is opaque, and circuits, wirings, and the like may be disposed in the non-display region. A first mounting through hole h1 is formed in the display area of the display panel 12. The hole wall of the first mounting through hole h1 is coated with the light shielding layer 15. The light shielding layer 15 may surround all of the hole walls of the first mounting through hole h1 in the circumferential direction of the first mounting through hole h1 (i.e., the light shielding layer 15 forms an integrally closed annular structure), or a plurality of light shielding layers 15 may be distributed on the hole walls of the first mounting through hole h1 at intervals in the circumferential direction of the first mounting through hole h 1. With any one of the above-described structural forms of the light shielding layer 15, the light shielding layer 15 has the first end 151 and the second end 152 that are opposite, and the first end 151 and the second end 152 are opposite ends of the light shielding layer 15 in the axial direction of the first mounting through hole h 1. The first end 151 is attached to the light-transmitting region (specifically, the light-transmitting region faces the inner surface of the display panel 12). The light shielding layer 15 is made of an opaque material (including but not limited to glue) by a coating process (including but not limited to spraying) and is used for shielding light emitted from the display panel 12. Since the first end 151 is attached to the light-transmitting region, the light of the display panel 12 cannot enter the first mounting hole h1 through the assembly gap between the display panel 12 and the cover plate 11.
The backlight module 13 is provided with a second mounting through hole h2 aligned with the first mounting through hole h 1. Preferably, the alignment means that the axis of the second mounting through hole h2 coincides with the axis of the first mounting through hole h 1. Of course, the alignment may also mean that the axis of the second mounting through hole h2 is slightly deviated from the axis of the first mounting through hole h 1. One surface of the backlight module 13 facing the light shielding layer is provided with a filling groove, and the filling groove is arranged outside the opening of the second mounting through hole h 2. When the light shielding layer 15 is coated, the opaque material flows into the filling groove to form the second end 152, i.e., the second end 152 is filled in the filling groove. The structure of the filled grooves matches the structure of the light-shielding layer 15 to receive well the second end 152 of the light-shielding layer 15. For example, when the light shielding layer is distributed over the entire hole wall in the circumferential direction of the first mounting through-hole h1, the filling groove also surrounds the axis of the second mounting through-hole h2 by one turn; when the plurality of light shielding layers 15 are spaced apart on the hole wall of the first mounting through hole h1 in the circumferential direction of the first mounting through hole h1, the plurality of filling grooves are also spaced apart around the axis of the second mounting through hole h 2.
In this embodiment, the second mounting through hole h2 can be used for the camera module 21 to penetrate, i.e. the camera module 21 can be inserted into the second mounting through hole h 2. The first mounting through hole h1 is used as a passage for external light to enter the camera module 21, i.e. the external light can penetrate through the light-transmitting area, penetrate through the first mounting through hole h1 and the second mounting through hole h2, and finally enter the camera module 21. The camera module 21 can form an image after collecting external light. Further, camera module 21 also can penetrate in first installation through-hole h1 simultaneously to it is closer with the distance in light-transmitting zone, be convenient for receive the external light of more light quantities, in order to do benefit to the formation of image. Alternatively, the camera module 21 may not penetrate into the second mounting through hole h2, but the light incident surface of the camera module 21 (external light enters the camera module 21 through the light incident surface) may be spaced from the opening of the second mounting through hole h2 by a certain distance (the distance may be 0).
When the camera module 21 is attached to the display module 10, the camera module 21 is located closer to the display panel 12. At this time, the first end 151 of the light shielding layer 15 is attached to the cover plate 11, and the second end 152 is filled in the filling groove on the backlight module 13, that is, the light shielding layer 15 is blocked between the display panel 12 and the camera module 21, so as to block the path of the light of the display panel 12 entering the camera module 21, thereby avoiding the light emitting crosstalk of the display panel 12 to the camera module 21. Further, due to the design of the light shielding layer 15, the light generated by the backlight module 13 cannot enter the camera module 21. Preferably, the light shielding layer 15 may be in a closed ring shape, so that light emitted from the display panel 12 and the backlight module 13 in any direction cannot enter the camera module 21, thereby achieving a good light shielding effect. Or, when the light-shielding layers 15 are distributed at intervals, although the light-shielding effect is slightly inferior to that of the light-shielding layers 15 in a closed ring shape, the light-shielding effect can still block the light rays of the display panel 12 and the backlight module 13 in some directions, so as to ensure that the camera module 21 is not subjected to the light-emitting crosstalk of the display panel 12 in the directions.
In the prior art, the camera module 21 is disposed side by side with the display panel 12 and disposed outside the display panel 12 (certainly, outside the non-display area of the display panel 12). Under the condition that the area of the display surface (the surface where the display picture is located) of the electronic equipment is fixed, the area occupied by the display panel 12 in the display surface is limited due to the fact that the camera module 21 occupies the area of part of the display surface, and therefore the area of the display panel 12 is correspondingly limited, and the screen occupation ratio of the electronic equipment is smaller. However, the scheme of this embodiment is through piling up camera module 21 and display panel 12 and setting up, and arrange camera module 21 in the display area of display panel 12, can enlarge display panel 12 to the position of laying of original camera module, thereby do display panel 12 big in the area of display surface area ratio, and then promote display panel 12's screen ratio (the smart machine that has the touch screen similarly has replaced straight board function machine, the "keyboard" of smart machine is laid in the display area (the function of original keyboard is realized through the touch-control in the display area), display panel 12 enlarges the position of laying to original keyboard, thereby the screen ratio that makes the smart machine is greater than straight board function machine).
In addition, in the scheme of this embodiment, by designing the light shielding layer 15, the path of light rays emitted by the display panel 12 and the backlight module 13 entering the camera module 21 is blocked, so that the light emitting crosstalk of the display panel 12 and the backlight module 13 on the camera module 21 is avoided, and the normal operation of the camera module 21 is ensured; the design of the filling groove can increase the bonding area between the second end 152 of the light shielding layer 15 and the backlight module 13, which is beneficial for the light shielding layer 15 to be attached more reliably, thereby being beneficial for the light shielding layer 15 to continuously play a light shielding role; and when coating, unnecessary opaque material can flow to in filling the groove, has avoided the material to spill over and cause harmful effects to assembly and product normal work.
As shown in fig. 3, in the present embodiment, further, the first end 151 of the light shielding layer 15 may be filled between the region of the display panel 12 except for the first mounting through hole h1 and the light transmitting region of the cover plate 11. That is, the first end 151 may wrap the edge of the opening of the first mounting through hole h1 to form a 7-shaped section. This makes it less likely that the light from the display panel 12 and the backlight module 13 will enter the camera module 21, thereby enhancing the light shielding effect of the light shielding layer 15. Of course, the first end 151 of the light shielding layer 15 may be attached only to the light transmitting region corresponding to the first mounting through hole h1 without covering the edge of the opening of the first mounting through hole h 1.
As shown in fig. 3, in the present embodiment, the filling groove may further include a first groove wall 13a and a second groove wall 13b (edges shown in fig. 3 as being enlarged), an included angle is formed between the first groove wall 13a and the second groove wall 13b (except 0 degree and 180 degrees, based on the fact that the light-tight material can be received), an edge of the first groove wall 13a away from the second groove wall 13b is connected to a surface of the backlight module 13 facing the display panel 12 at the included angle, an edge of the second groove wall 13b away from the first groove wall 13a is connected to a hole wall of the second mounting through hole h2, that is, the filling groove is communicated with the second mounting through hole h2, which is equivalent to a spigot formed on the hole wall of the second mounting through hole h 2. The second end 152 is attached to both the first groove wall 13a and the second groove wall 13b to be tightly filled in the filling groove. The filling groove with such a structure is easy to process, and is also beneficial to filling and attaching the opaque material on the backlight module 13. In other embodiments, the filling groove may not communicate with the second mounting through hole h2, but the inner cavity of the filling groove is spaced apart from the second mounting through hole h2 by a retaining wall.
As shown in fig. 4, in the present embodiment, the display panel 12 may be a liquid crystal panel, and the liquid crystal panel has a color filter substrate 121 and a thin film transistor substrate 123, and liquid crystal 122 is filled between the color filter substrate 121 and the thin film transistor substrate 123. The first mounting through hole h1 forms an opening on both the color filter substrate 121 and the thin film transistor substrate 123. A sealing cylinder 124 is connected between the opening of the color filter substrate 121 and the opening of the thin film transistor substrate 123 to seal the liquid crystal 122 in a sealing chamber formed by the color filter substrate 121, the thin film transistor substrate 123, and the sealing cylinder 124. The inner wall of the sealing cylinder 124 may serve as a hole wall of the first mounting through hole h 1. The sealing tube 124 can prevent the liquid crystal 122 from leaking under the condition that the through hole is formed in the liquid crystal panel, and the display performance of the liquid crystal panel is ensured. The sealing cylinder 124 may be formed together in the process of the liquid crystal panel.
Preferably, the sealing cylinder 124 may be a Black Matrix (BM) in the liquid crystal panel, that is, the sealing cylinder 124 is made of a Black Matrix material (including but not limited to a Black photoresist film) and is manufactured by a Black Matrix process, and has the function of a Black Matrix (preventing light leakage between pixels, increasing contrast). In other embodiments, the display panel 12 is not limited to being a liquid crystal panel, and the sealing cylinder 124 may be made of other materials and processes.
As shown in fig. 4-6, in the present embodiment, the backlight module 13 may further include a metal bottom cover 131, a first through hole t1 is formed on the metal bottom cover 131, a first folding edge 1313 is connected to an opening of the first through hole t1, and the first folding edge 1313 is protruded (e.g., perpendicular) on a surface of the opening of the first through hole t 1. The first fold 1313 is preferably of closed loop configuration; however, the structure may be an open ring structure, and only a part of the first through hole t1 connected thereto is open; alternatively, the first flap 1313 may include several spaced flaps connected to the opening of the first through hole t 1. The first folding edge 1313 may be formed by sheet metal working, or a separate first folding edge 1313 may be manufactured, and the first folding edge 1313 may be connected (including but not limited to riveting, welding) to the opening of the first through hole t 1. The first folding edge 1313 is preferably located on a side of the metal bottom cover 131 facing the display panel 12, but may also be located on a side of the metal bottom cover 131 facing away from the display panel 12.
As shown in fig. 4-6, the backlight module 13 may further include a plastic sleeve 133, the plastic sleeve 133 is connected to the first folding edge 1313, and the opening of the plastic sleeve 133 is aligned with the first through hole t1 (the alignment is the same as the above). The plastic sleeve 133 is opened to form a second mounting through-hole h 2. In this embodiment, the plastic sleeve 133 can be used to limit the position of the camera module 21, thereby effectively positioning the camera module 21. Because the plastic cover 133 is manufactured by a plastic molding process, it has high dimensional accuracy, which is beneficial to reducing the matching tolerance with the camera module 21 and enhancing the assembling strength of the camera module 21. In this embodiment, the plastic sleeve 133 may be accommodated in the first through hole t1 by adhering to the hole wall of the first through hole t1, and the first folding edge 1313 is disposed on the outer periphery of the plastic sleeve 133; or the plastic sleeve 133 can be inserted into the first folding edge 1313, that is, the first folding edge 1313 is embedded into the side wall of the plastic sleeve 133 to form a fixed connection, so that the connection strength of the plastic sleeve 133 can be greatly enhanced, and the limitation of the camera module 21 is facilitated.
Accordingly, as shown in fig. 4, the filling groove may be formed on a surface of the plastic sleeve 133 facing the light shielding layer 15.
As shown in fig. 4-6, in the present embodiment, the backlight module 13 may further include an optical assembly 132 (including an optical film such as a light guide plate, a reflective sheet, a filter, an anti-reflection film, and a light source) supported on the metal bottom cover 131. The optical assembly 132 is used to provide surface light to the display panel 12. The optical assembly 132 is provided with a second through hole t2, the second through hole t2 is aligned with the first through hole t1, and the first folding edge 1313 extends into the second through hole t 2. That is, the first folding edge 1313 is located on the side of the metal bottom cover 131 facing the optical assembly 132, and the aperture of the second through hole t2 is larger than that of the first through hole t1, so that the wall of the second through hole t2 surrounds the outer periphery of the first folding edge 1313. From this, this embodiment provides a backlight unit's after the improvement structure, can realize camera module 21's location, and then makes contributions to promoting electronic equipment's screen to account for than.
As shown in fig. 5 and 6, in the present embodiment, further, the metal bottom cover 131 may include a cover 1312, a second flange 1311 is formed at a periphery of the cover 1312, and the second flange 1311 is protruded (e.g., may be perpendicular) on the cover 1312. The second flange 1311 may be formed by sheet metal working, or a separate second flange 1311 may be manufactured and the second flange 1311 may be attached (including but not limited to riveting, welding) to the cover 1312. The second flange 1311 may be closed loop to encircle the cover 1312 by one circle; an open ring structure may be employed, which is connected only to a part of the peripheral edge of the lid 1312; alternatively, the second flange 1311 may include spaced apart flanges attached to the cover 1312. The second flange 1311 surrounds the outer periphery of the optical assembly 132 to accommodate and protect it.
As shown in fig. 7 and 8, in the present embodiment, the optical assembly 132 includes a light guide plate 1321 and a light source, and the light guide plate 1321 is used for receiving light of the light source and providing uniform surface light to the display panel 12.
Further, in one embodiment, as shown in fig. 5 and 7, the second through hole t2 forms an opening t21 at a boundary line of the light guide plate 1321. Fig. 7 shows a schematic diagram of a transmission path of light from the light source 1322 in the light guide plate 1321, wherein a dotted arrow indicates the transmission path of the light (for the sake of simplicity, only a part of the transmission path of the light is shown), and the light exit surface of the light guide plate 1321 is a surface perpendicular to the paper surface. In the present embodiment, the light beam that has traveled to the side of the opening t21 (the lower side in fig. 8) can exit from the light exit surface as a surface light beam. However, due to the existence of the opening t21, there is very little light transmitted from one side of the opening t21 to the other side (the upper side in fig. 7) of the opening t21, so that sufficient surface light cannot be generated at the other side of the opening t21, and the area of the display panel 12 corresponding to the other side of the opening t21 cannot be displayed normally. However, since the opening t21 is located at the edge of the light guide plate 1321, the area on the other side of the opening t21 where sufficient surface light cannot be generated is very small, and thus the area on the display panel 12 where normal display cannot be performed is also very small. Thus, the embodiment of the present invention avoids the adverse effect of the hole in the light guide plate 1321 on the display of the display panel 12 as much as possible.
Alternatively, in another embodiment, unlike the above-described embodiment, as shown in fig. 8, the optical assembly 132 includes a light guide plate 1321, a first light source 1322 and a second light source 1323, and the first light source 1322 and the second light source 135 are respectively disposed at opposite sides of an opening t22 formed in the light guide plate 1321 by the second through hole t2 to emit incident light toward the light guide plate 1321 from opposite directions. Therefore, the first light source 1322 and the second light source 1323 are complementary to each other, so that enough surface light can be generated on both sides of the opening t22 on the light guide plate 1321, thereby avoiding the defect that the corresponding area of the display panel 12 cannot display normally in the above embodiment. In this embodiment, the position of the opening t22 on the light guide plate 1321 may be arbitrarily set according to the requirement, and for example, the opening may also be set at the edge line or the central position of the light guide plate 1321. The second flange 1311 is positioned at the outer circumference of the first light source 1322 and the second light source 1323 to receive and protect the first light source 1322 and the second light source 1323.
As shown in fig. 9 to 11, the electronic device 20 of the embodiment of the present application includes a camera module 21 and the display module 10 of the embodiment described above. The camera module 21 extends into the second mounting hole h2, so that the external light penetrates through the light-transmitting area and passes through the first mounting hole h1 to enter the camera module 21. The light shielding layer 15 is blocked between the camera module 21 and the display panel 12 to isolate the two. Thus, the light from the display panel 12 and the backlight module 13 is blocked by the light blocking layer 15 and does not enter the camera module 21. As described above, the electronic device 20 of the embodiment has a larger screen ratio, so that the viewing experience is improved; and can avoid the luminous crosstalk camera module 21 of display panel 12 and backlight module 13, ensure that camera module 21 normally works.
As shown in fig. 11, in the present embodiment, the camera module 21 may include a lens holder 212 and a lens 211 mounted on the lens holder 212. In fig. 11, in order to distinguish the lens 211 from the lens holder 212, a dotted line is drawn in the camera module 21, the part above the dotted line is the lens 211, the part below the dotted line is the lens holder 212, and the radial dimension of the lens holder 212 is larger than that of the lens 211. The lens 211 is inserted into the second mounting hole h2, and the second mounting hole h2 limits the lens 211 (for example, when the plastic sleeve 133 is designed, the plastic sleeve 133 is matched with the lens 211 to limit the lens 211). The mirror base 212 is held at the edge of the second mounting through hole h 2.
As shown in fig. 10 and fig. 11, in the present embodiment, further, the electronic device 20 includes a housing 22, the display assembly 10 is carried on the housing 22, and the housing 22 and the display panel 12 are respectively located on two opposite sides of the backlight module 13. A third mounting through hole h3 is formed in the housing 22 at a position corresponding to the second mounting through hole h2, and the mirror base 212 extends into the third mounting through hole h3 and is clamped at the edge of the second mounting through hole h 2. The housing 22 has suitable structural strength to carry the entire display assembly 10 well. The third mounting through hole h3 is formed in the housing 22, and the camera module 21 is mounted on the backlight module 13 through the third mounting through hole h3, so that the overall thickness of the electronic device 20 can be reduced. In addition, in the scheme of limiting the camera module 21 by using the plastic sleeve 133 of the backlight module 13, since the assembly dimension chain of the assembly body formed by the camera module 21 and the display assembly 10 is shortest at this time, the assembly error of the camera module 21 is small, and thus the working performance of the camera module 21 is ensured.
The embodiment of the application also provides a manufacturing method of the display assembly, which is used for manufacturing the display assembly in the embodiment. The manufacturing method comprises the following steps:
providing a cover plate, a display panel and a backlight module; wherein the cover plate is provided with a light-transmitting area; the display panel is provided with a display area, and a first mounting through hole is formed in the display area; a second mounting through hole is formed in the backlight module, and a filling groove is formed in the surface of one opening of the second mounting through hole;
attaching the cover plate to the display panel so that the light-transmitting area corresponds to the display area;
attaching the backlight module to one surface of the display panel, which is far away from the cover plate, so that the second mounting through hole is aligned to the first mounting through hole;
and coating a shading material on the hole wall of the first mounting through hole, and enabling the shading material to flow to the surface of the light-transmitting area and the filling groove.
Specifically, the areas of the light-transmitting area and the display area are substantially equal. The first mounting through hole may be formed in a manufacturing process of the display panel. For example, when the display panel is a liquid crystal panel, the first mounting through hole and the sealing cylinder may be formed on the thin film transistor substrate and the color filter substrate by a manufacturing process of the liquid crystal panel, and an inner cavity of the sealing cylinder is the first mounting through hole. The cover plate and the display panel can be attached by an attaching process through an optical transparent adhesive tape, and the positions of the light-transmitting area and the display area are basically overlapped, so that light emitted by the display area penetrates through the light-transmitting area to form a picture.
In this embodiment, the backlight module may be attached to a surface of the display panel that faces away from the cover plate, so that the second mounting through hole is aligned with the first mounting through hole. Preferably, the alignment means that the axis of the second mounting through hole coincides with the axis of the first mounting through hole. Of course, the alignment may also mean that the axis of the second mounting through hole is slightly offset from the axis of the first mounting through hole.
In this embodiment, a spraying apparatus may be used to coat the opaque material to form the light shielding layer. The spraying equipment can comprise a clamp for clamping the assembly formed by the cover plate and the display panel, and a nozzle for spraying the opaque material, wherein the nozzle moves according to a set spraying path to finish spraying. The cover plate may be positioned on the jig with the cover plate facing downward and the display panel facing upward to facilitate spraying into the first mounting through-hole. The opaque material may be allowed to flow naturally to conform to the transparent region and into the filling groove, or a tool (including but not limited to a wind knife) may be used to allow the opaque material to flow naturally to the above-mentioned position.
In the manufacturing method of the embodiment, because the filling groove is designed, redundant opaque material can flow into the filling groove when coating is carried out, and the overflow of the material is avoided. The display assembly manufactured by the method has a larger screen ratio, and can prevent the light of the display panel and the backlight module from crosstalk with the camera module; and can directly utilize the display module part to effectively fix a position the camera module, reduced the assembly error of camera module.
Further, in the step of coating the hole wall of the first mounting through hole with the light shielding material, the light shielding material is filled between the region of the display panel except for the first mounting through hole and the light transmitting region, so that the light shielding material covers the edge of the first mounting through hole. Thus, the formed light shielding layer can have a 7-shaped cross section, and the light shielding effect of the light shielding layer can be enhanced.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (11)

1. A display module, characterized in that,
the display panel comprises a cover plate, a display panel and a backlight module which are sequentially stacked; the cover plate is provided with a light-transmitting area; the display panel is provided with a display area corresponding to the light-transmitting area, a first mounting through hole is formed in the display area, a light shielding layer is coated on the hole wall of the first mounting through hole, the light shielding layer is provided with a first end and a second end which are opposite, and the first end is attached to the light-transmitting area; a second mounting through hole aligned with the first mounting through hole is formed in the backlight module, a filling groove is formed in one surface, facing the light shielding layer, of the backlight module, and the second end of the backlight module is filled in the filling groove;
the backlight module comprises a metal bottom cover and a plastic sleeve, wherein a first through hole is formed in the metal bottom cover, and an opening of the first through hole is connected with a first folding edge; the plastic sleeve is connected with the first folding edge, the opening of the plastic sleeve is aligned with the first through hole, and the opening of the plastic sleeve is used as the second mounting through hole; the filling groove is formed in one surface, facing the light shielding layer, of the plastic sleeve.
2. The display assembly of claim 1,
the first end is filled between the region of the display panel except the first mounting through hole and the light-transmitting region.
3. The display assembly of claim 1,
the light shielding layer is distributed on the whole hole wall in the circumferential direction of the first mounting through hole, and the filling groove surrounds the axis of the second mounting through hole for a circle.
4. The display assembly of any of claims 1-3,
the filling groove comprises a first groove wall and a second groove wall which are connected, the edge of the first groove wall, which is far away from the second groove wall, is connected with one surface of the backlight module, which faces the display panel, in an included angle, and the edge of the second groove wall, which is far away from the first groove wall, is connected with the hole wall of the second mounting through hole; the second end is attached to both the first slot wall and the second slot wall.
5. The display assembly of any of claims 1-3,
the display panel is a liquid crystal panel, the first installation through hole is in all form the trompil on liquid crystal panel's color filter base plate and the thin film transistor base plate, the trompil on the color filter base plate with be connected with a sealed section of thick bamboo between the trompil on the thin film transistor base plate, in order to be in with liquid crystal seal the color filter base plate the thin film transistor base plate reaches in the sealed intracavity that a sealed section of thick bamboo constitutes, the inner wall of a sealed section of thick bamboo is regarded as the pore wall of first installation through hole.
6. The display assembly of any of claims 1-3,
the first folding edge is inserted into the side wall of the plastic sleeve so as to be fixedly connected with the plastic sleeve.
7. The display assembly of any of claims 1-3,
the backlight module further comprises an optical assembly, the optical assembly is borne on the metal bottom cover, a second through hole aligned with the first through hole is formed in the optical assembly, and the first folding edge is contained in the second through hole.
8. The display assembly of claim 7,
the metal bottom cover comprises a cover body, a second folded edge is formed at the periphery of the cover body, and the second folded edge is arranged around the periphery of the optical assembly.
9. An electronic device, characterized in that,
comprising a camera module and a display assembly according to any one of claims 1 to 8; the camera module extends into the second mounting through hole so that external light penetrates through the light-transmitting area and the first mounting through hole to enter the camera module; the shading layer isolates the camera module from the display panel.
10. The electronic device of claim 9,
the camera module comprises a lens base and a lens arranged on the lens base; the lens extends into the second mounting through hole so as to limit the lens by using the second mounting through hole; the mirror base is clamped at the edge of the second mounting through hole.
11. The electronic device of claim 10,
the electronic equipment comprises a shell, the display assembly is borne on the shell, a third installation through hole is formed in the position, corresponding to the second installation through hole, of the shell, and the mirror base extends into the third installation through hole and is clamped at the edge of the second installation through hole.
CN201810703175.7A 2018-06-29 2018-06-29 Display module and electronic device Active CN108845450B (en)

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