CN111399283A - Display module and electronic device - Google Patents
Display module and electronic device Download PDFInfo
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- CN111399283A CN111399283A CN202010331798.3A CN202010331798A CN111399283A CN 111399283 A CN111399283 A CN 111399283A CN 202010331798 A CN202010331798 A CN 202010331798A CN 111399283 A CN111399283 A CN 111399283A
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- Prior art keywords
- backlight
- light
- fingerprint
- module
- reinforcing plate
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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
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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
- G02F1/13338—Input devices, e.g. touch panels
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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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
- G06V40/1329—Protecting the fingerprint sensor against damage caused by the finger
Abstract
The application provides a display module and electronic equipment, display module includes: a fingerprint module, reinforcing plate and backlight unit for gathering the fingerprint, the reinforcing plate is established on backlight unit, backlight unit includes support piece and establishes the group of packets of backlight on the support piece, fingerprint module is located one side of keeping away from the group of packets of backlight of support piece, the support piece with fingerprint module relative part be formed with logical unthreaded hole, at least some of reinforcing plate with lead to the unthreaded hole relative, at least with lead to the partial light-permeable of unthreaded hole relative of reinforcing plate. According to the display module of this application, through setting up the reinforcing plate, at least some and the logical unthreaded hole of reinforcing plate are relative, can improve backlight unit's the structural strength and the rigidity of the structure weak part to improved backlight unit's the resistance to deformation ability of the structural strength weak part, also improved backlight unit's structural strength and resistance to deformation ability simultaneously, reach the effect that reduces or eliminate Newton's ring, make the fingerprint image that the display module gathered true accuracy more.
Description
Technical Field
The present application relates to the field of electronic devices, and in particular, to a display module and an electronic device.
Background
In the related art, when an electronic device with an off-screen fingerprint collection function collects a fingerprint of a user, the user needs to press a finger on a display screen of the electronic device. However, limited by the internal structure of the electronic device, the user may cause the deformation of the backlight module on one side of the display screen to a greater extent when pressing the finger on the display screen, which causes the light to diffract when passing through the backlight module, thereby forming a more obvious newton ring and reducing the accuracy of collecting the fingerprint image by the electronic device.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, the application provides a display module, and the backlight module of the display module has higher anti-deformation capability, can reduce or eliminate Newton rings, and can improve the real accuracy of fingerprint image acquisition of the display module.
The application also provides an electronic device with the display assembly.
According to an embodiment of the first aspect of the application, the display assembly comprises: the fingerprint module is used for collecting and identifying fingerprints; the reinforcing plate is arranged on the backlight module; backlight unit, backlight unit includes support piece and establishes backlight unit group on the support piece, fingerprint module is located keep away from of support piece one side of backlight unit group, support piece with the relative part of fingerprint module is formed with logical unthreaded hole, at least partly with logical unthreaded hole is relative of reinforcing plate, at least of reinforcing plate with it is light-permeable to lead to the relative part in unthreaded hole.
According to the display module of this application, through set up the reinforcing plate on backlight unit, and at least a part of reinforcing plate is relative with support piece's logical unthreaded hole, can improve backlight unit's the structural strength and the rigidity of the structure weak part (the part of the formation logical unthreaded hole of support piece), thereby backlight unit's the anti deformability of the structural strength weak part has been improved, backlight unit's overall structure intensity and anti deformability have also been improved simultaneously, reach the effect that reduces or eliminates the Newton ring, make the fingerprint image that fingerprint module gathered more true accurate, can improve the true accuracy that display module gathered the fingerprint image, thereby effectively improve the performance that the fingerprint was gathered and discerned under the screen of display module.
An electronic device according to an embodiment of the second aspect of the present application includes: a display assembly according to an embodiment of the first aspect of the present application; the support piece supports on the center, the fingerprint module is established on the center.
According to the electronic equipment, through setting up above-mentioned display module, can reach the effect that reduces or eliminate Newton's ring for the fingerprint image that fingerprint module gathered is more true accurate, can improve the true accuracy that electronic equipment gathered the fingerprint image, thereby can effectively improve the performance of fingerprint collection and discernment under the screen of electronic equipment.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of an electronic device according to some embodiments of the present application;
FIG. 2 is a partially schematic illustration of an electronic device capturing a fingerprint image according to some embodiments of the present application;
FIG. 3 is a schematic diagram of a partial structure of an electronic device according to some embodiments of the present application;
FIG. 4 is a schematic diagram of a portion of an electronic device according to further embodiments of the present application;
FIG. 5 is a schematic diagram of a portion of an electronic device according to further embodiments of the present application.
Reference numerals:
an electronic device 100;
a middle frame 1;
a display component 2; a display screen 21; a backlight module 22; a support member 221; a light passing hole 2211; a backlight layer group 222; an antireflection film 2221; a diffusion membrane 2222; a light guide plate 2223; a reflective film 2224;
a fingerprint module 3;
a reinforcing plate 4;
a seal 5;
a display circuit board 6;
and a light supplement lamp 7.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
A display module 2 according to an embodiment of the present application is described below with reference to the drawings.
Referring to fig. 1-5, a display assembly 2 according to an embodiment of the first aspect of the present application includes a fingerprint module 3, a stiffener 4, and a backlight module 22.
The reinforcing plate 4 is arranged on the backlight module 22, and the fingerprint module 3 is arranged on one side of the backlight module 22 in the thickness direction. The backlight module 22 includes a supporting member 221 and a backlight layer set 222 disposed on the supporting member 221, the supporting member 221 can support the backlight layer set 222, the fingerprint module 3 is disposed on a side of the supporting member 221 away from the backlight layer set 222 along a thickness direction, the backlight layer set 222 can include a plurality of functional layers, and the backlight layer set 222 has functions of guiding light and improving lateral light conduction. A portion of the support member 221 opposite to the fingerprint module 3 is formed with a light passing hole 2211, and the light passing hole 2211 may pass light.
At least a part of the reinforcing plate 4 is opposed to the light passing hole 2211, for example, a part of the reinforcing plate 4 is opposed to the light passing hole 2211, or the whole reinforcing plate 4 is opposed to the light passing hole 2211. At least a portion of the reinforcing plate 4 opposite to the light-passing hole 2211 is light-permeable, for example, a portion of the reinforcing plate 4 opposite to the light-passing hole 2211 is light-permeable, or the reinforcing plate 4 as a whole is light-permeable, so that light can pass through the portion of the reinforcing plate 4 opposite to the light-passing hole 2211. By providing the reinforcing plate 4 on the backlight module 22 and disposing at least a portion of the reinforcing plate 4 opposite to the light-passing hole 2211 on the supporting member 221, the structural strength and rigidity of the structurally weak portion of the backlight module 22 (the portion of the supporting member where the light-passing hole 2211 is formed) can be improved, so that the deformation resistance of the structurally weak portion of the backlight module 22 is improved, and the overall structural strength and deformation resistance of the backlight module 22 are also improved.
"multilayer" in this application means two or more layers.
The display assembly 2 further comprises a display screen 21, the backlight module 22 is arranged on one side of the display screen 21 in the thickness direction, the backlight module 22 may comprise a light source component for providing a light source for the display screen 21, the display screen 21 may be an L CD screen, the display assembly 2 may comprise a display circuit board 6, the display circuit board 6 may be an FPC circuit board, the display circuit board 6 may be fixed on the supporting member 221, the light source component may be arranged in the backlight layer group 222 or between the supporting member 221 and the backlight layer group 222, the light source component is electrically connected with the display circuit board 6, and light emitted by the light source component of the backlight module 22 is guided by the backlight layer group 222 to provide uniformly distributed light for the display screen 21.
When the display module 2 is applied to the electronic device 100, and when the electronic device 100 collects a fingerprint of a user, the user may press a finger on a set position of the display module 2 of the electronic device 100, for example, the position of the finger pressed on the display module 2 is a position opposite to the light through hole 2211 of the support member 221, light emitted by the light source device may pass through the display screen 21 and be transmitted to an external environment, at this time, a part of the light irradiates the fingerprint to be detected and is reflected and/or refracted onto the display screen 21, and the light reaches the fingerprint module 3 through the backlight layer group 222 and the light through hole 2211 of the support member 221. Because the reflected and/or refracted light passes through the fingerprint to be detected, the reflected light can reflect a fingerprint image, and the fingerprint module 3 can collect the fingerprint information of the user.
When the electronic device 100 with the display assembly 2 is used for fingerprint collection, since a finger is pressed at a position of the display assembly 2 opposite to the light through hole 2211, since the light through hole 2211 is arranged at the position, the position is a structurally weak position of the backlight module 22, and the position is a position with larger finger pressure, by arranging the reinforcing plate 4 on the backlight module 22 and enabling at least one part of the reinforcing plate 4 to be opposite to the light through hole 2211, the structural strength and rigidity of the structurally weak part (the part of the supporting member 221 forming the light through hole 2211) of the backlight module 22 are improved, and therefore the deformation resistance of the structurally weak part of the backlight module 22 is improved. When gathering user's fingerprint information, can be so that backlight unit 22 with lead to the deformation volume of the relative part of unthreaded hole 2211 and reduce to reduce or eliminated the newton's ring that reflection and/or refracted light formed when backlight unit 22, thereby make the fingerprint image that fingerprint module 3 gathered more true accurate, thereby can improve the fingerprint collection of display element 2 and the performance of discernment.
Optionally, can increase the light filling lamp 7 that is used for gathering the light filling to the fingerprint in 22 one side of the neighbouring backlight unit of display screen 21 to further improve the light intensity of fingerprint collection, thereby further improve accuracy and the reliability of fingerprint collection.
For example, the fill-in light 7 is disposed on a side of the display screen 21 adjacent to the backlight module 22 and opposite to the display screen 21, and light emitted from the fill-in light 7 can be transmitted to a space of the external environment opposite to the light-passing hole 2211. Light emitted by the light source part enters a fingerprint to be detected and is reflected and/or refracted to the display screen 21, and reaches the fingerprint module 3 through the backlight module 22 and the light through hole 2211 in the supporting part 221, in the process, the intensity of the light is lost, the light intensity received by the fingerprint module 3 is possibly further reduced, and the fingerprint image collected by the fingerprint module 3 is unclear. Through 7 light supplements of light lamp, can increase light and reach to the light intensity who waits to detect the fingerprint to can improve the light intensity that fingerprint module 3 received light, make the fingerprint image that fingerprint module 3 gathered more clear, true accurate.
Wherein, light filling lamp 7 can be the infrared lamp, and the infrared light that the infrared lamp sent has better penetrability, can reduce the light intensity loss that light passed the in-process that display module 2 caused for the fingerprint image that fingerprint module 3 gathered is more clear, true accurate.
According to the display module 2 of the application, through set up reinforcing plate 4 on backlight unit 22, and at least partly of reinforcing plate 4 is relative with logical unthreaded hole 2211 of support piece 221, can improve the structural strength and the rigidity of the structural weakness part (the part of the formation logical unthreaded hole 2211 of support piece 221) of backlight unit 22, thereby the anti deformability of the structural strength weakness part of backlight unit 22 has been improved, the overall structure intensity and the anti deformability of backlight unit 22 have also been improved simultaneously, reach the effect that reduces or eliminates newton's ring, make the fingerprint image that fingerprint module 3 gathered more true and accurate, can improve the true accuracy that display module 2 gathered the fingerprint image, thereby can effectively improve the performance that fingerprint collection and discernment under the screen of display module 2.
Referring to fig. 3, according to some embodiments of the present disclosure, the projection of the light-passing hole 2211 on the reference plane is located in the projection of the reinforcing plate 4 on the reference plane, and the reference plane is parallel to the backlight layer group 222, so that the reinforcing plate 4 can substantially completely cover the light-passing hole 2211, and the overall structural strength of the backlight module 22 is further improved, so that the deformation resistance of the backlight module 22 is further improved, when a user presses the display module 2, the deformation of the backlight module 22 is further reduced, and a newton ring is further reduced or eliminated, so that a fingerprint image collected by the fingerprint module 3 is more real and accurate.
Referring to fig. 3, according to some embodiments of the present application, the deformation resistance of the stiffener plate 4 is greater than the deformation resistance of at least one of the backlight unit 222 and the support 221, e.g., the deformation resistance of the stiffener plate 4 is greater than the deformation resistance of the backlight unit 222; or the reinforcing plate 4 has a greater resistance to deformation than the support member 221; or the deformation resistance of the reinforcing plate 4 is greater than that of the backlight layer group 222 and greater than that of the supporting member 221. The overall structural strength of the backlight module 22 can be further improved, so that the deformation resistance of the backlight module 22 is further improved, the reinforcing plate 4 with high deformation resistance is arranged to support the backlight layer group 222, the deformation of the backlight layer group 222 can be reduced when a user presses the display component 2, the effect of reducing or eliminating Newton rings is achieved, and the fingerprint image acquired by the fingerprint module 3 is more real and accurate. For example, the hardness of the reinforcing plate 4 can be in the range of 170-.
Referring to fig. 3 and 4, according to some embodiments of the present application, the reinforcing plate 4 is disposed on the supporting member 221, which facilitates the installation and fixation of the reinforcing plate 4. When the user presses the display assembly 2 to collect a fingerprint image, the deformation amount of the supporting member 221 is reduced, so that the deformation amount of the backlight layer group 222 supported by the supporting member 221 is reduced, an effect of reducing or eliminating newton rings is achieved, and the fingerprint image collected by the fingerprint module 3 is more real and accurate.
Referring to fig. 3, according to some alternative embodiments of the present application, the stiffener 4 is located between the support 221 and the fingerprint module 3, facilitating the mounting and fixing of the stiffener 4. Moreover, the deformation resistance of the supporting member 221 is improved, and the design enables the deformation amount of the supporting member 221 to be reduced when a user presses the display assembly 2 to collect a fingerprint image, so that the deformation amount of the backlight layer group 222 supported by the supporting member 221 is reduced, an effect of reducing or eliminating Newton rings is achieved, and the fingerprint image collected by the fingerprint module 3 is more real and accurate.
Referring to fig. 4, according to some alternative embodiments of the present application, the stiffener plate 4 is located between the supporting member 221 and the backlight layer group 222, which facilitates the installation and fixation of the stiffener plate 4. And the structural strength of backlight module 22 has been improved to backlight module 22's anti deformability has been improved, when the user pressed display module 2 in order to gather the fingerprint image, the deformation volume of backlight group 222 reduced, reached the effect that reduces or eliminate newton's ring, made the fingerprint image that fingerprint module 3 gathered more true accurate.
Referring to fig. 3 and 4, according to some alternative embodiments of the present application, the projection of the supporting member 221 on the reference plane is located in the projection of the reinforcing plate 4 on the reference plane, and the reference plane is parallel to the backlight layer group 222, so that the supporting member 221 and the reinforcing plate 4 have a larger contact area. Since the larger the force-bearing area of the object is, the lower the pressure per unit area of the object is, under the same pressure applied to the object. When the reinforcing plate 4 is attached to the supporting piece 221, the stress area of the supporting piece 221 can be increased, when a user presses the display assembly 2 to collect a fingerprint image, the pressure in the unit area of the supporting piece 221 can be reduced, and the stress deformation of the supporting piece 221 is reduced, so that the deformation amount of the backlight layer group 222 is reduced, the effect of reducing or eliminating Newton rings is achieved, and the fingerprint image collected by the fingerprint module 3 is more real and accurate. It should be added that the larger the area of the stiffener 4 is, the more obvious the improvement effect of reducing or eliminating newton's rings is, in practical design, the size of the stiffener 4 needs to be determined according to the routing manner and the overall space inside the display module 2, for example, the stiffener 4 may extend to the outer edge of the supporting member 221.
Referring to fig. 5, according to some embodiments of the present disclosure, the reinforcing plate 4 is disposed on the backlight layer group 222, so as to improve the structural strength of the backlight layer group 222, thereby improving the deformation resistance of the backlight layer group 222, and this design enables the deformation amount of the backlight layer group 222 to be reduced when a user presses the display assembly 2 to collect a fingerprint image, so that the fingerprint image collected by the fingerprint module 3 is more real and accurate.
Referring to fig. 3-5, according to some alternative embodiments of the present application, the backlight layer set 222 includes a plurality of functional layers stacked on top of each other, and the reinforcement plate 4 is disposed between two adjacent functional layers. For example, the backlight layer group 222 includes an antireflection film 2221, a diffusion film 2222, a light guide plate 2223, a reflection film 2224, and other functional layers, where the antireflection film 2221 is disposed on a side of the display screen 21 adjacent to the fingerprint module 3, the diffusion film 2222 is disposed on a side of the antireflection film 2221 away from the display screen 21, the light guide plate 2223 is disposed on a side of the diffusion film 2222 away from the display screen 21, and the reflection film 2224 is disposed on a side of the light guide plate 2223 away from the display screen 21. The antireflection film 2221 can increase the light transmission amount of the backlight layer group 222 as a whole, and can eliminate stray light. The diffusion film 2222 has a scattering function, and can scatter light emitted from the light source unit. The light guide plate 2223 has a light guiding function, and can enhance the lateral transfer of the light source emitted from the light source device. The reflective film 2224 has a good reflective function, and light in the light guide plate 2223 may be reflected by contacting the reflective film 2224, thereby reducing light escaping from the light guide plate 2223 and reducing light intensity loss. The reinforcing plate 4 is arranged between the two adjacent functional layers, so that the overall structural strength of the backlight layer group 222 can be improved, the deformation resistance of the backlight layer group 222 is improved, and the deformation of the backlight layer group 222 is reduced when a user presses the display component 2, so that the fingerprint image acquired by the fingerprint module 3 is more real and accurate.
Referring to fig. 3 to 5, according to some optional embodiments of the present disclosure, the projection of the backlight layer group 222 on the reference surface is located in the projection of the reinforcing plate 4 on the reference surface, and the reference surface is parallel to the backlight layer group 222, such a design enables the backlight layer group 222 and the reinforcing plate 4 to have a larger contact area, so as to further improve the structural strength of the whole backlight layer group 222, further improve the deformation resistance of the backlight layer group 222, and further reduce the deformation of the whole backlight layer group 222 when a user presses the display assembly 2 to collect a fingerprint image, so that the fingerprint image collected by the fingerprint module 3 is more real and accurate.
Referring to fig. 3-5, according to some embodiments of the present application, the reinforcing plate 4 is a plastic member, such that the reinforcing plate 4 has better structural strength, lower cost, and convenient production.
Referring to fig. 3-5, optionally, the reinforcing plate 4 is a PET (polyester resin) member, so that the reinforcing plate 4 has good light transmittance, the light intensity loss of light passing through the reinforcing plate 4 is small, and meanwhile, the reinforcing plate 4 has good structural strength, low cost and convenient production.
Referring to fig. 3-5, according to some embodiments of the present disclosure, the supporting member 221 is a metal member, such that the supporting member 221 has high structural strength and deformation resistance, such that the structural strength of the whole electronic device 100 is high, and the deformation resistance of the backlight module 22 is high, for example, the supporting member 221 is an iron member.
The electronic device according to the embodiment of the second aspect of the present application comprises a display component 2 and a middle frame, and the display component 2 is the display component 2 according to the embodiment of the first aspect of the present application. The supporting member 221 is supported on the middle frame 1, and the fingerprint module 3 is disposed on the middle frame 1. So that the support member 1 and the fingerprint module 3 are stably arranged, and the middle frame 1 is a frame structure of the electronic device 100 and has a function of supporting other components of the electronic device 100.
By way of example, the electronic device 100 of the present application may be any of various types of computer system devices that are mobile or portable and that perform wireless communications. Specifically, the electronic device 100 may be a mobile phone or smart phone (e.g., iPhone (TM) based, Android (TM) based phone), a Portable game device (e.g., Nintendo DS (TM), PlayStation Portable (TM), Game Key Advance (TM), iPhone (TM)), a laptop, a PDA, a Portable Internet device, a music player, and a data storage device, among other handheld devices.
According to the electronic device 100 of the application, through setting the display assembly 2, the effect of reducing or eliminating Newton rings can be achieved, so that the fingerprint image acquired by the fingerprint module 3 is more real and accurate, the real accuracy of acquiring the fingerprint image by the electronic device 100 can be improved, and the performance of acquiring and identifying the fingerprint under the screen of the electronic device 100 can be effectively improved.
Referring to fig. 3-5, according to some embodiments of the present application, the electronic device 100 further includes a sealing member 5, the sealing member 5 may be annular, the sealing member 5 surrounds the periphery of the fingerprint module 3 and is located between the supporting member 221 and the middle frame 1, the sealing member 5 may be a foam member, the sealing member 5 has a waterproof and dustproof function, and can protect the fingerprint module 3 and improve the quality of fingerprint images collected by the fingerprint module 3.
According to some embodiments of the application, electronic equipment 100 still includes light filling lamp 7, and the light that light filling lamp 7 sent can incide to fingerprint module 3 after detecting fingerprint reflection and/or refraction through waiting, through the light filling of light filling lamp 7, can increase the light intensity when light reachs and detects the fingerprint to can improve the light intensity that fingerprint module 3 received light, make the fingerprint image that fingerprint module 3 gathered more clear, true accurate. The light filling lamp 7 can be arranged on the middle frame 1, and further can be arranged on the outer peripheral side of the backlight module 22, light emitted by the light filling lamp 7 can not pass through the backlight module 22 in the process of detecting the fingerprint in the direction, so that light intensity loss of the light emitted by the light filling lamp 7 is reduced, and the fingerprint image collected by the fingerprint module 3 is clearer, truer and more accurate.
In other embodiments of this application, electronic equipment 100 still includes light filling lamp 7, the light that light filling lamp 7 sent can incide to fingerprint module 3 after waiting to detect fingerprint reflection and/or refraction, light filling lamp 7 can set up on backlight unit 22's support piece 221 and be located support piece 221's periphery side, make light filling lamp 7 stably set up, through light filling lamp 7 light filling, can increase the light intensity when light reachs and waits to detect the fingerprint, thereby can improve the light intensity that fingerprint module 3 received light, make the fingerprint image that fingerprint module 3 gathered more clear, it is true accurate.
An electronic device 100 according to a specific embodiment of the present application is described below with reference to fig. 2 and 3.
In this embodiment, the electronic device 100 includes a middle frame 1, a display assembly 2, a fingerprint module 3, a reinforcing plate 4, a sealing member 5, a display circuit board 6, and a fill light 7. The display component 2 comprises a display screen 21, a backlight module 22 arranged on one side of the display screen 21 and a light source part used for providing light source for the display screen 21, the backlight module 22 is arranged opposite to the display screen 21, the display screen 21 is connected with the middle frame 1, and the light source part is connected with the backlight module 22. The backlight module 22 includes a support 221 and a backlight layer set 222 disposed on the support 221, and the backlight layer set 222 includes an antireflection film 2221, a diffusion film 2222, a light guide plate 2223, and a reflection film 2224. The fingerprint module 3 is disposed on the middle frame 1 and located on one side of the backlight module 22 away from the display screen 21, and the portion of the supporting member 221 opposite to the fingerprint module 3 is formed with a light-passing hole 2211. The middle frame 1 is provided with a sealing member 5, the sealing member 5 is annular, the sealing member 5 surrounds the outer periphery side of the fingerprint module 3, and the reinforcing plate 4 is arranged between the sealing member 5 and the supporting member 221. The display circuit board 6 is fixed on the supporting member 221, and the light source member is electrically connected to the display circuit board 6. The light filling lamp 7 is arranged on one side of the display screen 21 adjacent to the backlight module 22 and on the middle frame 1, the light filling lamp 7 is arranged on the outer peripheral side of the backlight module 22, and light rays emitted by the light filling lamp 7 can be transmitted to the space of the external environment opposite to the light through hole 2211.
When a user presses a finger on the display screen 21 to collect a fingerprint image, light emitted by the light source and light emitted by the fill-in light 7 irradiate the fingerprint to be detected and are reflected to the display screen 21, and the light reaches the fingerprint module 3 through the backlight layer group 222 and the light through hole 2211 on the supporting member 221. By arranging the reinforcing plate 4, at least one part of the reinforcing plate 4 is opposite to the light through hole 2211 of the supporting piece 221, the structural strength and rigidity of the structural weak part (the part of the supporting piece 221 forming the light through hole 2211) of the backlight module 22 can be improved, the deformation resistance of the structural strength weak part of the backlight module 22 is improved, the integral structural strength and the deformation resistance of the backlight module 22 are also improved, when a user presses a finger on the display screen 21 to collect a fingerprint image, the deformation of the backlight module 22 is reduced, the effect of reducing or eliminating a Newton ring is achieved, the fingerprint image collected by the fingerprint module 3 is more real and accurate, and the performance of collecting and identifying the fingerprint under the screen of the electronic device 100 can be effectively improved.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A display assembly, comprising:
the fingerprint module is used for collecting fingerprints;
the reinforcing plate is arranged on the backlight module.
Backlight unit, backlight unit includes support piece and establishes backlight unit group on the support piece, fingerprint module is located keep away from of support piece one side of backlight unit group, support piece with the relative part of fingerprint module is formed with logical unthreaded hole, at least partly with logical unthreaded hole is relative of reinforcing plate, at least of reinforcing plate with it is light-permeable to lead to the relative part in unthreaded hole.
2. The display assembly of claim 1, wherein a projection of the clear aperture onto a reference plane is located within a projection of the stiffener onto the reference plane, the reference plane being parallel to the set of backlight layers.
3. The display assembly of claim 1, wherein the stiffener plate has a greater resistance to deformation than at least one of the backlight layer set and the support.
4. The display assembly of claim 1, wherein the stiffener is a polyester resin.
5. The display assembly of any of claims 1 to 4, wherein the stiffener is provided on the support; the reinforcing plate is located between the supporting piece and the fingerprint module, or the reinforcing plate is located between the supporting piece and the backlight layer group.
6. A display assembly according to claim 5, wherein the projection of the support on a reference plane parallel to the set of backlight layers is located within the projection of the stiffener plate on the reference plane.
7. The display assembly of any of claims 1-4, wherein the stiffener is disposed on the set of backlight layers.
8. The display assembly of claim 7, wherein the backlight layer set comprises a plurality of functional layers stacked on top of each other, and the stiffener is disposed between two adjacent functional layers.
9. The display assembly of claim 7, wherein a projection of the set of backlight layers onto a reference surface is located within a projection of the stiffener plate onto the reference surface, the reference surface being parallel to the set of backlight layers.
10. An electronic device, comprising:
a display assembly according to any one of claims 1-9;
the support piece supports on the center, the fingerprint module is established on the center.
11. The electronic device of claim 10, further comprising a seal surrounding a periphery of the fingerprint module and between the support and the bezel.
12. The electronic device according to claim 10, further comprising a fill-in light, wherein light emitted by the fill-in light is reflected and/or refracted by a fingerprint to be detected and then can enter the fingerprint module, and the fill-in light is disposed on the middle frame.
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| CN202010331798.3A CN111399283A (en) | 2020-04-24 | 2020-04-24 | Display module and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010331798.3A CN111399283A (en) | 2020-04-24 | 2020-04-24 | Display module and electronic device |
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Application publication date: 20200710 |