CN112462543B - Cover plate assembly of electronic equipment, display module and electronic equipment - Google Patents
Cover plate assembly of electronic equipment, display module and electronic equipment Download PDFInfo
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- CN112462543B CN112462543B CN202011280772.7A CN202011280772A CN112462543B CN 112462543 B CN112462543 B CN 112462543B CN 202011280772 A CN202011280772 A CN 202011280772A CN 112462543 B CN112462543 B CN 112462543B
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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
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
-
- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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Abstract
The utility model provides an electronic equipment's apron subassembly, display module assembly and electronic equipment, relates to but not limited to display device technical field, the apron subassembly includes apron and luminescence unit, the apron includes relative primary surface and second surface, the primary surface is equipped with the finger induction zone, luminescence unit locates on the second surface, the light that luminescence unit sent can see through the apron shines finger induction zone. The display module assembly comprises a display panel, a binding area is formed on the part, close to one side edge, of the display panel, the display module assembly further comprises a cover plate assembly of the electronic equipment, the cover plate is arranged on the display side of the display panel, and the light emitting unit is located between the cover plate and the binding area. When the cover plate assembly of the electronic equipment is applied to the display device adopting the optical fingerprint identification system, the width of the lower frame of the display device can be reduced.
Description
Technical Field
The embodiment of the application relates to but is not limited to display device technical field, especially relates to a apron subassembly, display module assembly and electronic equipment of electronic equipment.
Background
At present, the fingerprint identification scheme under liquid crystal display's the screen mainly adopts optical type fingerprint identification system, and optical type fingerprint identification system includes light source and fingerprint identification unit, and the light that the light source sent shines the finger surface through the apron when discerning the fingerprint, shines on the fingerprint identification unit that is located liquid crystal display below after the finger reflection, and fingerprint identification unit carries out data processing through the information to the light that the finger reflects and discerns the fingerprint.
Some adopt among optical fingerprint identification system's the display device, optical fingerprint identification system's light source setting is on the casing of display device lower frame department, and display module assembly and optical fingerprint identification system's light source mutually independent design, and both need occupy certain width, cause display device's lower frame broad, in addition, this kind of design still has shortcomings such as complete machine equipment requirement height, consumption height, light leak.
Disclosure of Invention
The embodiment of the application provides an electronic equipment's apron subassembly, display module assembly and electronic equipment, is favorable to reducing the lower frame width that adopts optical fingerprint identification system's display device.
The embodiment of the application provides an electronic equipment's apron subassembly, including apron and luminescence unit, the apron includes relative first surface and second surface, the first surface is equipped with the finger induction zone, the luminescence unit is located on the second surface, the light that the luminescence unit sent can see through the apron is shone finger induction zone.
Optionally, the light emitting unit includes a light source, a light guiding film and a light shielding film, the light source is located at a circumferential side of the light guiding film, the light shielding film is located at a side of the light guiding film away from the cover plate, the light shielding film at least partially exposes an edge of a first side of the light guiding film and shields a remaining portion of the light guiding film and the light source, and a portion of the light guiding film exposed by the light shielding film forms a light outlet portion of the light guiding film.
Optionally, a protrusion is formed on an edge of the first side of the light guide film, and the protrusion is the light emergent portion.
Optionally, the light emitting unit includes two light sources, light emitting surfaces of the two light sources are disposed opposite to each other, and the two light sources are respectively located on the second side and the third side of the light guiding film, which are opposite to each other.
Optionally, the light emitting unit further includes a circuit board attached to the second surface of the cover plate, the two light sources are disposed on the side surface of the circuit board away from the cover plate, a gap is disposed in a portion of the circuit board between the two light sources, and a portion of the light guiding film corresponding to the gap is attached to the second surface of the cover plate.
Optionally, the circuit board is a flexible circuit board, and in a direction perpendicular to the cover plate, the thickness of the light guide film is greater than that of the flexible circuit board and less than that of the light source.
The embodiment of the application still provides a display module assembly, including display panel, display panel's the part that is close to one side edge is formed with the district of binding, display module assembly still include any embodiment electronic equipment's apron subassembly, the apron sets up display panel's demonstration side, the luminescence unit is located the apron with bind between the district.
Optionally, the binding region is bound with a driving chip, and a light source of the light emitting unit is staggered with the driving chip.
Optionally, the display panel includes a first substrate and a second substrate that are disposed opposite to each other, a side of the first substrate protrudes from the second substrate, and the protruding portion of the first substrate forms the bonding region, and the cover plate is disposed on a side of the second substrate that is away from the first substrate.
The embodiment of the application also provides electronic equipment comprising the display module in any embodiment.
Optionally, the electronic device further comprises a casing, the casing comprises a rear casing opposite to the cover plate, a fingerprint identification unit is arranged on the rear casing, and the fingerprint identification unit is arranged to perform fingerprint identification according to light rays emitted by the light emitting unit reflected by the finger when the finger touches the finger sensing area.
The cover plate assembly of the electronic equipment is applied to the display device adopting the optical fingerprint identification system, and the light-emitting unit is arranged on the cover plate, so that after the cover plate is assembled with the display panel, the light-emitting unit is positioned in the display module of the display device, the space of the display device is not required to be additionally occupied, and compared with the scheme that the light source of the optical fingerprint identification system is arranged on the shell of the lower frame of the display device in some technologies, the width of the lower frame of the display device can be reduced.
The display module assembly of this application embodiment, with the luminescence unit setting on the apron and be located apron and display panel's the district that binds between, so, the luminescence unit is located display module assembly inside and corresponds with display panel's the district that binds, the luminescence unit does not need additionally to occupy display device's space on the one hand, on the other hand can not increase display panel's width to can reduce display device's lower frame width.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and together with the examples of the application do not constitute a limitation of the embodiments of the application.
FIG. 1 is a schematic diagram of a display device employing an optical fingerprint recognition system according to some techniques;
FIG. 2 is a schematic view of the display device of FIG. 1 at another viewing angle;
FIG. 3 is a schematic illustration of a cover plate assembly in some exemplary embodiments;
FIG. 4 is a schematic illustration of an assembly process of the cover plate assembly of FIG. 3 in some exemplary embodiments;
FIG. 5 is a schematic diagram of a bonding area of a display panel of a display module in some demonstrative embodiments;
FIG. 6 is a schematic diagram of a side view of a display module in some example embodiments;
FIG. 7 isbase:Sub>A schematic view of the cross-sectional structure A-A of FIG. 6;
FIG. 8 is a schematic view of a cross-sectional view B-B of FIG. 6;
FIG. 9 is a schematic view of an assembly process of a display module in some exemplary embodiments;
the reference signs are:
01. the device comprises a light source 02, a shell 03, a cover plate 04, a finger 05, a fingerprint identification unit 06, a display panel 07, a driving chip 08 and a flexible circuit board;
1. a cover plate;
2. a light emitting unit 21, a light source 22, a light guide film 221, a light emitting part 23, a light shielding film 24, a circuit board 241 and a notch;
3. the display device comprises a display panel 31, a first substrate 311, a binding region 32, a second substrate 33, a driving chip 34 and a flexible circuit board;
4. the device comprises a backlight module, 5, a shell, 6, a fingerprint identification unit, 7, double-sided adhesive tape, 8, fingers, 9 and light;
100. a display module.
Detailed Description
The technical scheme of the application is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
As shown in fig. 1 and fig. 2, in some display devices using an optical fingerprint identification system, a display module includes a display panel 06 and a cover plate 03 disposed on a display side of the display panel 06, a housing 02 of the display device surrounds a circumferential side portion of the display module and a side of the display module away from the cover plate 03, and a light source 01 of the optical fingerprint identification system is disposed on the housing 02 at a lower frame of the display device. When fingerprints are identified, light emitted by the light source 01 enters a gap between a binding region (the binding region is bound and connected with the driving chip 07 and the flexible circuit board 08) of the display panel 06 and the cover plate 03, irradiates the finger 04 through the cover plate 03, irradiates the finger 04 on the fingerprint identification unit 05 positioned below the liquid crystal display screen after being reflected by the finger 04, and identifies the fingerprints by performing data processing on information of light reflected by the finger 04 by the fingerprint identification unit 05.
In this kind of design, light source 01 sets up on the casing 02 of display device lower frame department, and light source 01 and display module assembly structurally mutually independent design, and both all need occupy certain width, cause display device's lower frame broad, do not accord with the demand of current market to narrow frame. In addition, light source 01 need with display panel 06's the district of binding and the gap between the apron 03 counterpoint, counterpoint effect direct influence fingerprint identification's accuracy, because display module assembly and light source 01 both structurally mutually independent, consequently higher requirement has been proposed to the equipment of display device complete machine to counterpoint between them. Moreover, because the sensing position of the finger 04 on the cover plate 03 has a certain range, the requirements on the light intensity of the light source 01 and the area of the light source 01 are met, a surface light source is generally formed by arranging a plurality of light sources 01 side by side, as shown in fig. 2, in this way, the overall structure of the light source 01 is large, the power consumption is high, the structural sealing performance is poor, and the light leakage problem is serious.
The embodiment of the application provides a cover plate assembly of an electronic device, and in some exemplary embodiments, as shown in fig. 3, the cover plate assembly includes a cover plate 1 and a light-emitting unit 2 (in some examples, the light-emitting unit 2 includes a light source 21, a light guide film 22 and a light shielding film 23), the cover plate 1 includes a first surface and a second surface which are opposite to each other, the first surface is provided with a finger sensing area, the light-emitting unit 2 is provided on the second surface, and light emitted by the light-emitting unit 2 can penetrate through the cover plate 1 and irradiate the finger sensing area.
The utility model provides an electronic equipment's apron subassembly is when being applied to the display device who adopts optical fingerprint identification system, because set up luminescence unit 2 on apron 1, after apron 1 and display panel assemble, luminescence unit 2 is located display device's display module's inside, need not additionally to occupy display device's space, also need not design the structure of placing luminescence unit 2 on the casing, compare in some technical scheme of setting optical fingerprint identification system's light source on the casing of display device lower frame department, can reduce display device's lower frame width.
In some exemplary embodiments, as shown in fig. 3 and 4, fig. 3 is a schematic top view of a cover plate assembly, fig. 4 is a schematic assembly process diagram of the cover plate assembly in fig. 3, and an open arrow in fig. 4 represents an assembly sequence. The light emitting unit 2 comprises a light source 21, a light guide film 22 and a light shielding film 23, wherein the light source 21 is located at the circumferential side of the light guide film 22, the light shielding film 23 is located at the side, away from the cover plate 1, of the light guide film 22, the light shielding film 23 at least partially exposes the edge of the first side of the light guide film 22 and shields the rest of the light guide film 22 and the light source 21, and the exposed part of the light guide film 22 by the light shielding film 23 forms a light outlet part 221 of the light guide film 22. In this embodiment, the light source 21 may be provided in one or more, and when the light source 21 is provided in plural, the plural light sources 21 may be located on the same side or different sides of the light guide film 22.
In this embodiment, after the light emitted from the light source 21 is incident on the light guide film 22, the light guide film 22 (the light guide film 22 has the light guide points) can make the emitted light uniform and concentrated. The light shielding film 23 plays a role in shielding light, so that light can only be emitted from the light emitting portion 221 of the light guiding film 22, thereby avoiding the problem of light leakage in some technologies, and in addition, the light shielding film 23 can also reflect redundant light back to the light guiding film 22, thereby increasing the brightness of the light emitting portion 221 of the light guiding film 22 and improving the light utilization rate.
In an example of this embodiment, as shown in fig. 3 and 4, a protrusion is formed on an edge of the first side of the light guide film 22, and the protrusion is the light emergent portion 221. Illustratively, the projections may be rectangular, trapezoidal, or the like. The light shielding film 23 may be rectangular in shape. In other examples, the light guide film may be rectangular in shape, and respective side edges of the light blocking film are formed with notches that at least partially expose an edge of the first side of the light guide film to form the light emergent portion. After the light from the light source 21 is incident into the light guiding film 22, the light is emitted from the light emitting portion 221 of the light guiding film 22, and the light emitted from the light emitting portion 221 is irradiated to the finger sensing area on the cover plate 1 through the cover plate 1. The light outlet part 221 is disposed at an edge of one side of the light guide film 22 close to the finger sensing area.
In some exemplary embodiments, as shown in fig. 3 and 4, the light emitting unit 2 includes two light sources 21, light emitting surfaces of the two light sources 21 are oppositely disposed, and the two light sources 21 are respectively located at opposite second and third sides of the light guide film 22. The arrow direction in fig. 3 represents the light propagation direction inside the light emitting unit 2.
In an example of this embodiment, as shown in fig. 3 and fig. 4, the light emitting unit 2 further includes a circuit board 24 attached to the second surface of the cover plate 1, the two light sources 21 are disposed on a side surface of the circuit board 24 away from the cover plate 1, a portion of the circuit board 24 located between the two light sources 21 is provided with a notch 241, and a portion of the light guiding film 22 corresponding to the notch 241 is attached to the second surface of the cover plate 1. Both light sources 21 may employ infrared light emitting diodes (IR LEDs).
For example, as shown in fig. 3 and 4, two sides of the light guiding film 22 close to the two light sources 21 may be attached to the circuit board 24 and respectively disposed opposite to the light emitting surfaces of the two light sources 21. The circuit board 24 may be a flexible circuit board, and a surface of the flexible circuit board 24 facing the cover plate 1 may be attached to the second surface of the cover plate 1 by the double-sided tape 7. The circuit board 24 is electrically connected to the two light sources 21 and is configured to supply power to the two light sources 21, and the circuit board 24 may be connected to a circuit within the electronic device through a connector to supply power to the light sources 21. The peripheral edge of the light shielding film 23 may be attached to the circuit board 24 and the cover plate 1, and the middle portion of the light shielding film 23 may be attached to the light source 21 and the light guiding film 22.
The assembly process of the cover plate assembly of this example may be: as shown in fig. 4, in a first step, a flexible circuit board 24 to which IR LEDs are soldered is attached to the cover plate 1 with a double-sided tape 7; second, pasting a light guiding film 22 between the two IR LEDs; and thirdly, pasting a shading film 23 on the outer side of the whole structure, so as to play a role in reflecting light and preventing light leakage.
In some exemplary embodiments, as shown in fig. 3 and 4, the circuit board 24 is a flexible circuit board, and the thickness of the light guide film 22 is greater than the thickness of the flexible circuit board 24 and less than the thickness of the light source 21 in a direction perpendicular to the cover plate 1.
In one example of the present embodiment, the light sources 21 are two, the thickness of the light source 21 (for example, IR LED) is 0.3mm, the thickness of the flexible circuit board 24 is 0.1mm, the thickness of the light guiding film 22 is 0.18mm, the thickness of the light shielding film 23 is 0.03mm, and the thickness of the double-sided tape 7 is 0.03mm.
The embodiment of the present application further provides a display module, and in some exemplary embodiments, as shown in fig. 7, the display module includes a display panel 3, a binding region 311 is formed at a portion of the display panel 3 near one side edge, the display module further includes the cover plate assembly of the electronic device according to any of the embodiments, the cover plate 1 is disposed on the display side of the display panel 3, and the light emitting unit 2 is located between the cover plate 1 and the binding region 311.
The display module assembly of this application embodiment sets up light-emitting unit 2 on apron 1 and be located apron 1 and display panel 3 bind between the district 311, so, light-emitting unit 2 is located the display module assembly inside and corresponds with display panel 3's the district 311 that binds, and light-emitting unit 2 need not additionally occupy display device's space on the one hand, and on the other hand can not increase display panel 3's width to can reduce display device's lower frame (bind the side frame that district 311 is located) width.
In some example embodiments, as shown in fig. 5 and 6, fig. 5 is a schematic structural diagram of a bonding region of a display panel in some examples, and fig. 6 is a schematic structural diagram of a side view of a display module in some examples. The binding region 311 is bound with a driving chip 33, and the light source 21 of the light emitting unit 2 is staggered from the driving chip 33. In an example of the present embodiment, as shown in fig. 5 and 6, the driving chip 33 is bound and connected at a middle position of the binding region 311, and the light emitting unit 2 includes two light sources 21, where the two light sources 21 are respectively located at two sides of the driving chip 33. The thicker light source 21 of the light emitting unit 2 and the thicker driving chip 33 of the binding region 311 are staggered, so that the light emitting unit and the binding region 311 are not interfered with each other, the width of the gap between the cover plate 1 and the binding region 311 in the direction perpendicular to the cover plate 1 is favorably reduced, and the thickness of the display module is favorably reduced.
In some exemplary embodiments, as shown in fig. 5 and 7, the display panel 3 includes a first substrate 31 and a second substrate 32 that are disposed opposite to each other, a side of the first substrate 31 protrudes from the second substrate 32, and a protruding portion of the first substrate 31 forms the bonding region 311, and the cover plate 1 is disposed on a side of the second substrate 32 facing away from the first substrate 31.
In an example of this embodiment, the display module may be a liquid crystal display module, the display panel 3 is a liquid crystal display panel, the first substrate 31 is an array substrate, and the second substrate 32 is a color film substrate. As shown in fig. 8, fig. 8 is a schematic view of a cross-sectional structure B-B in fig. 6, and the display module further includes a backlight module 4 disposed on a side of the liquid crystal display panel 3 away from the cover plate 1. The edge of the binding region 311 away from the second substrate 32 is also bound with a flexible circuit board 34, the flexible circuit board 34 can be bent to the side of the backlight module 4 away from the cover plate 1, and the bent portion of the flexible circuit board 34 can be fixed on the backlight module 4. The flexible circuit board 34 is provided to be connected with an external circuit to supply a signal to the inside of the display panel 3. The circuit board 24 of the light emitting unit 2 may be electrically connected to the flexible circuit board 34 through a connector, or to other circuit modules within the electronic device, to supply power to the light source 21.
The display module assembly of this embodiment, set up luminescence unit 2 on apron 1 and be located apron 1 and display panel 3 bind between the district 311, so, need not to change display panel 3's structure, only need carry out asymmetric attenuate to display panel 3 and handle, make the thickness of second base plate 32 compare in some technologies increase 0.148mm, namely, the clearance between the district 311 of binding of first base plate 31 and apron 1 increases 0.148mm can, moreover, the steam generator is simple in structure, and possesses the volume production nature, application prospect is better.
In some exemplary embodiments, the display module may be an Organic Light Emitting Diode (OLED) display device, and the display panel 3 is an OLED display panel.
In some exemplary embodiments, as shown in fig. 9, fig. 9 is a schematic view illustrating an assembly process of the display module in some examples. The light-emitting unit 2 and the cover plate 1 are designed together, and can be assembled and adhered by a manufacturer of the cover plate 1 to form a cover plate assembly; then, the cover plate assembly is attached to the display panel 3 to form the display module 100; finally, the circuit board 24 of the light emitting unit 2 is connected with the flexible circuit board 34 of the display panel 3 or other circuit module of the electronic device through a connector to supply power. Wherein, in the assembly process of the cover plate assembly and the display panel 3, the cover plate 1 and the display panel 3 can be adhered by optical transparent adhesive (OCA) with the thickness of 0.15 mm. In some examples, when the display panel 3 is a liquid crystal display panel, the liquid crystal display panel 3 is assembled with the backlight module 4 and then assembled with the cover plate assembly.
An embodiment of the present application further provides an electronic device, including the display module described in any of the above paragraphs.
In some exemplary embodiments, as shown in fig. 8, the electronic device further includes a chassis 5, and the chassis 5 may include a rear case disposed opposite to the cover plate 1, and a frame surrounding a peripheral edge of the display module. Be provided with fingerprint identification unit 6 on the backshell, fingerprint identification unit 6 sets up to be in 8 touches the finger response zone time according to 8 reflections of finger the light that luminescence unit 2 sent carries out fingerprint identification. The straight line with an arrow in fig. 8 represents the propagation direction of the light ray 9.
The electronic equipment of this application embodiment compares in some technical solutions with the light source 21 setting of optical fingerprint identification system on the casing 5 of display device lower frame department, because luminescence unit 2 sets up on apron 1 and forms a display module assembly whole with display panel 3 equipment back, consequently does not have the equipment and counterpoints the precision problem, and luminescence unit 2 is more close to the finger induction zone, and the precision of relative position is high, and sound construction is stable. In addition, the light emitting unit 2 is closer to the finger sensing area, so the loss of brightness of the light source 21 of the light emitting unit 2 is smaller, and in some examples, only two IR LEDs are needed to meet the brightness requirement, the number of required LEDs is reduced, and the power consumption is lower. In addition, the light guide film 22 can make the light emitted from the light source 21 more uniform and concentrated, and the light shielding film 23 can reflect the excessive light back to the light guide film 22, thereby increasing the brightness of the light outlet part 221 and avoiding the problem of light leakage.
The electronic device of the embodiment of the application can be any product with a display function, such as a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "top", "inner", "outer", "axial", "four corners", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for simplifying the description of the embodiments of the present application, and do not indicate or imply that the structures referred to have a specific orientation, are configured and operated in a specific orientation, and thus, cannot be construed as limiting the present application.
In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening elements, or may be connected through the interconnection between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
Claims (10)
1. A cover plate assembly for an electronic device, comprising: including apron and luminescence unit, the apron includes relative first surface and second surface, the first surface is equipped with the finger induction zone, luminescence unit includes two light sources, leaded light membrane, photomask and flexible circuit board, the flexible circuit board orientation the surface of apron is established through double faced adhesive tape subsides the second of apron is on the surface, two light sources are located deviating from of flexible circuit board on the side of apron, the flexible circuit board be located part between two light sources is equipped with the breach, leaded light membrane with the part subsides that the breach corresponds are established the second of apron is on the surface, two sides that are close to two light sources of leaded light membrane are all pasted and are established on the flexible circuit board to set up relatively with the light emitting area of two light sources respectively, the light that luminescence unit sent can see through the apron shines finger induction zone, the photomask is pasted in the outside of whole structure, the circumference edge subsides of photomask are established flexible circuit board and apron, the mid portion of photomask is pasted and is established light source and leaded light membrane are last.
2. A cover plate assembly for an electronic device according to claim 1, wherein: the light source is located the circumference lateral part of leaded light membrane, the photomask is located the leaded light membrane one side that deviates from the apron, the photomask exposes the edge of the first side of leaded light membrane at least partially to with the rest of leaded light membrane and the light source shelters from, the part of leaded light membrane that is exposed by the photomask forms the portion of appearing of leaded light membrane.
3. A cover plate assembly for an electronic device according to claim 2, wherein: the edge of the first side of the light guide film is provided with a convex part, and the convex part is the light emergent part.
4. A cover plate assembly for an electronic device according to claim 2, wherein: the light emitting surfaces of the two light sources are arranged oppositely, and the two light sources are respectively positioned on the second side and the third side, opposite to each other, of the light guide film.
5. A cover plate assembly for an electronic device according to claim 1, wherein: in a direction perpendicular to the cover plate, a thickness of the light guide film is greater than a thickness of the flexible circuit board and less than a thickness of the light source.
6. The utility model provides a display module assembly, includes display panel, the display panel is close to the part of a side edge and is formed with the binding area, its characterized in that: the display module further comprises a cover plate assembly of the electronic device of any one of claims 1-5, the cover plate is disposed on the display side of the display panel, and the light emitting unit is located between the cover plate and the bonding region.
7. The display module of claim 6, wherein: the binding region is bound and connected with a driving chip, and the light source of the light-emitting unit is staggered with the driving chip.
8. The display module of claim 6, wherein: the display panel comprises a first substrate and a second substrate which are arranged oppositely, one side of the first substrate protrudes out of the second substrate, the protruding part of the first substrate forms the binding area, and the cover plate is arranged on one side, deviating from the first substrate, of the second substrate.
9. An electronic device, characterized in that: comprising a display module according to any one of claims 6-8.
10. The electronic device of claim 9, further comprising a housing including a rear housing disposed opposite the cover, wherein: the back shell is provided with a fingerprint identification unit, and the fingerprint identification unit is arranged to perform fingerprint identification according to light rays reflected by the finger and emitted by the light emitting unit when the finger touches the finger sensing area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011280772.7A CN112462543B (en) | 2020-11-16 | 2020-11-16 | Cover plate assembly of electronic equipment, display module and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011280772.7A CN112462543B (en) | 2020-11-16 | 2020-11-16 | Cover plate assembly of electronic equipment, display module and electronic equipment |
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| Publication Number | Publication Date |
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| CN112462543A CN112462543A (en) | 2021-03-09 |
| CN112462543B true CN112462543B (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011280772.7A Active CN112462543B (en) | 2020-11-16 | 2020-11-16 | Cover plate assembly of electronic equipment, display module and electronic equipment |
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| JP2002366939A (en) * | 2001-06-12 | 2002-12-20 | Mitsubishi Electric Engineering Co Ltd | Device for detecting fingerprint |
| CN108446677A (en) * | 2018-05-03 | 2018-08-24 | 东莞市美光达光学科技有限公司 | A kind of fingerprint recognition module for below screen |
| CN109491548A (en) * | 2018-12-29 | 2019-03-19 | 深圳市骏达光电股份有限公司 | The cover plate assembly and its manufacturing process of In-cell touch panel |
| CN109564629A (en) * | 2018-10-15 | 2019-04-02 | 深圳市汇顶科技股份有限公司 | Finger print detection device and terminal device with fingerprint identification function |
| CN209312045U (en) * | 2018-11-09 | 2019-08-27 | 深圳市汇顶科技股份有限公司 | Liquid crystal display fingerprint mould group, electronic equipment and the lower fingerprint recognition system of screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025709A (en) * | 2019-12-23 | 2020-04-17 | 厦门天马微电子有限公司 | Display panel and display device |
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|---|---|---|---|---|
| JP2002366939A (en) * | 2001-06-12 | 2002-12-20 | Mitsubishi Electric Engineering Co Ltd | Device for detecting fingerprint |
| CN108446677A (en) * | 2018-05-03 | 2018-08-24 | 东莞市美光达光学科技有限公司 | A kind of fingerprint recognition module for below screen |
| CN109564629A (en) * | 2018-10-15 | 2019-04-02 | 深圳市汇顶科技股份有限公司 | Finger print detection device and terminal device with fingerprint identification function |
| CN209312045U (en) * | 2018-11-09 | 2019-08-27 | 深圳市汇顶科技股份有限公司 | Liquid crystal display fingerprint mould group, electronic equipment and the lower fingerprint recognition system of screen |
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| CN112462543A (en) | 2021-03-09 |
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