CN108733140A - Display device and electronic equipment - Google Patents
Display device and electronic equipment Download PDFInfo
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- CN108733140A CN108733140A CN201710270912.4A CN201710270912A CN108733140A CN 108733140 A CN108733140 A CN 108733140A CN 201710270912 A CN201710270912 A CN 201710270912A CN 108733140 A CN108733140 A CN 108733140A
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- display
- light
- display device
- structure sheaf
- fibre faceplate
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
Abstract
A kind of display device and electronic equipment, the display device include：It shows structure sheaf, shows light to show image for generating；Protective layer, at least partially fibre faceplate, the fibre faceplate have sensing face, and the display light transmitted through the fibre faceplate forms the reflected light for carrying finger print information in the sensing face；Imaging sensor, it is corresponding with the fibre faceplate position, for acquiring the reflected light to obtain fingerprint image.Technical solution of the present invention can realize the acquisition of fingerprint image under the premise of not influencing the display structure sheaf display function, be conducive to the hiding setting of described image sensor, be conducive to the screen accounting for expanding electronic equipment.
Description
Technical field
The present invention relates to display field, more particularly to a kind of display device and electronic equipment.
Background technology
Fingerprint identification technology collects the fingerprint image of human body by fingerprint imaging module, then in fingerprint recognition system
Have fingerprint imaging information to be compared, to realize identification.Due to the use of convenience and somatic fingerprint it is unique
Property, fingerprint identification technology have been widely used in every field, such as：The field of safety check such as public security bureau, customs, the gate inhibition system of building
System and the consumer product areas such as PC and mobile phone etc..
Fingerprint imaging module employed in fingerprint identification technology, have one is by optical finger print imaging modules acquire people
The fingerprint image of body：Incident light is generated by light source；Incident light is projected to finger surface layer, handles digital reflex and is formed and is believed with fingerprint
The reflected light of breath；The reflected light is received by optical image sensor, obtains fingerprint image.
Fingerprint imaging module is increasingly used in the mobile devices such as laptop, tablet computer, mobile phone, from
And associated mobile device is made to realize automatic unlocking and function.The especially fingerprint recognition of mobile phone, is even more widely used.
But the presence of fingerprint imaging module tends to foul with the raising of mobile device screen accounting, especially works as fingerprint imaging
When module is arranged at mobile phone front, the setting of fingerprint imaging module often influences the increase of display device area.Thus exist
In the case of not influencing product display function, display device is made to realize fingerprint imaging function, becomes one and urgently to be resolved hurrily ask
Topic.
Invention content
Problems solved by the invention is to provide a kind of display device and electronic equipment, in the case where not influencing display function
Fingerprint imaging is realized, to expand the screen accounting of electronic equipment.
To solve the above problems, the present invention provides a kind of display device, including：
It shows structure sheaf, shows light to show image for generating；Protective layer, at least partially fibre faceplate, the light
Fine panel has sensing face, and the display light transmitted through the fibre faceplate is formed in the sensing face carries finger print information
Reflected light；Imaging sensor, it is corresponding with the fibre faceplate position, for acquiring the reflected light to obtain fingerprint image.
Optionally, the protective layer is fibre faceplate.
Optionally, the protective layer includes cog region and viewing area, and the protective layer of the cog region is fibre faceplate；It is described
Projection of the imaging sensor in the sensing face is located in the fibre faceplate.
Optionally, the thickness of the protective layer is greater than or equal to 0.2mm.
Optionally, the display structure sheaf is spontaneous light display structures；The display structure sheaf be located at the protective layer and
Between described image sensor.
Optionally, the display structure sheaf is diode displaying structure.
Optionally, the diode displaying structure is organic light-emitting diode display structure.
Optionally, the diode displaying structure is that active matrix organic light-emitting diode shows structure.
Optionally, the display structure sheaf has backwards to the back side of the sensing face, and described image sensor fits in institute
State the back side of display structure sheaf.
Optionally, described image sensor fits in the back side of the display structure sheaf by optical cement.
Optionally, the display structure sheaf is backlight display structure sheaf, and the display structure sheaf includes：Backlight is used for
Generate initial light；Light modulation layer, between the backlight and the sensing face, for making the initial light form the display
Light；Described image sensor is between the backlight and the light modulation layer.
Optionally, the display structure sheaf is liquid crystal display structure layer, and the light modulation layer includes liquid crystal layer.
Optionally, the display structure sheaf includes：Multiple pixel units, the multiple pixel unit are arranged in array；Extremely
There is gap between few adjacent pixel unit.
Optionally, the width in gap is greater than or equal to 5 μm between adjacent pixel unit.
Optionally, in the sensing face, the ratio between the gap projected area and the pixel unit projected area are less than
Or it is equal to 1:10.
Correspondingly, the present invention also provides a kind of electronic equipment, including：The display device of the present invention.
Compared with prior art, technical scheme of the present invention has the following advantages：
The protective layer at least partially fibre faceplate, the part display light is transmitted through the fibre faceplate, described
The reflected light is formed in sensing face；Described image sensor acquires the reflected light and obtains fingerprint image.Due to fibre faceplate
Has the characteristics that zero optical thickness, therefore the way at least partly setting the protective layer to the fibre faceplate can't shadow
Ring the image display function of the display structure sheaf；And fibre faceplate has the function of collimation to transmitted ray, through the light
There is the display light of fine panel transmission higher collimation, corresponding formed reflected light also to have higher collimation, pass through
The acquisition of fingerprint image can be realized by acquiring the reflected light；So the use of the fibre faceplate can effectively improve transmission institute
The collimation performance of protective layer light is stated, can realize fingerprint image under the premise of not influencing the display structure sheaf display function
The acquisition of picture is conducive to the hiding setting of described image sensor, is conducive to the screen accounting for expanding electronic equipment.
In the present invention program, the display structure sheaf is that self-luminous shows that structure sheaf, described image sensor are located at described
Show side of the structure sheaf far from the protective layer；The display structure sheaf is backlight display structure sheaf, i.e., the described display structure
Layer includes backlight and display function ergosphere, and described image sensor is between the light modulation layer and the backlight.It is described
Show that structure sheaf at least partly can be between described image sensor and the protective layer, described image sensor not position
In the light path of the display light, it is aobvious to the display structure sheaf that this set method can effectively reduce described image sensor
The influence for showing function is conducive to the display effect for improving the display device.
In alternative of the present invention, the display structure sheaf is that self-luminous shows structure sheaf, described image sensor fitting
In the back side of the display structure sheaf；The display structure sheaf is backlight display structure sheaf, and described image sensor is located at described
Between light modulation layer and the backlight.Therefore the setting of described image sensor without to the producing line of existing display device carry out compared with
The manufacturing can be realized in big change, and without increasing additional process costs, and technology difficulty is relatively low, material cost is relatively low,
Be conducive to the control of manufacturing cost.
Description of the drawings
Fig. 1 is the cross-sectional view of one embodiment of display device of the present invention；
Fig. 2 is the enlarged structure schematic diagram of structure in box 140 in display device embodiment shown in Fig. 1；
Fig. 3 is the cross-sectional view of another embodiment of display device of the present invention；
Fig. 4 is the enlarged structure schematic diagram of structure in box 240 in display device shown in Fig. 3.
Specific implementation mode
By background technology it is found that display device in the prior art there are problems that being difficult to realize fingerprint imaging function.
In order under the premise of not influencing display function propose, display device integrated fingerprint imaging function, technical staff
Three kinds of technical solutions：The first is ultrasonic wave scheme, and planizer is arranged below display device, for generating ultrasound
Wave control transmitting and receives reflected ultrasonic wave by modulation /demodulation, according to the signal strength of received ultrasonic wave and when
Sequence carries out the drafting of fingerprint image；Second is lens arrangement, increases lens matrix in a display device or Fresnel is saturating
Mirror, the light of the transparent area transmission through display device, is calibrated through lens matrix or Fei Nier lens, to obtain fingerprint image
Picture；The third is pinhole imaging system scheme, several apertures is opened up in display device, and the aperture has higher depth-to-width ratio,
The acquisition of fingerprint image is realized using the multiple aperture.
But all there are various problems in these three technical solutions in existing display device：In the first ultrasonic wave scheme,
The quality of obtained fingerprint image is difficult to ensure that disposition is unintelligible, and using the display device production technology of ultrasonic wave scheme
Difficulty is higher, and slightly gap can not both obtain image in display device；In second of lens arrangement, planar lens difficulty of processing compared with
Greatly, in order to obtain larger focal length, the material of used lens need to be set as high n-value material, and material cost is larger；And it obtains
After lens, the attaching process difficulty of lens and display device is not also small, thus using lens arrangement display device technique at
This is higher, and yield is relatively low；In the third pinhole imaging system scheme, in order to ensure yield, need in the mistake for forming the display device
The aperture is formed in journey, it is therefore desirable to which manufacture can be realized by carrying out larger change to existing producing line, need to increase larger volume
Outer process costs, and the technology difficulty of formation aperture is larger in the display device, and aperture slightly leakage cannot achieve small
Borescopic imaging.
It has been investigated that existing display device is often covered with cover board, to play the role of protecting internal hardware devices.Institute
The material for stating cover board is usually glass.In order to improve the defencive function of the cover board, the thickness of the cover board is usually larger.And
With the development of electronic functionalities, the cover board is often to be often also provided with capacitance below composite construction, such as cover board
The touch control layer of formula, to form touch control display apparatus；In addition, being also filled with optical cement between the display device and cover board
(Optically Clear Adhesive, OCA glue).
During carrying out fingerprint imaging, light needs the cover board on transmission display device and various functions film layer,
The larger cover board of thickness and various film layers can play the role of refraction and reflection to transmitted ray, to make light become spuious
Light, it is difficult to obtain fingerprint image.
To solve the technical problem, the present invention provides a kind of display structure, will at least partly be set in the protective layer
It is set to fibre faceplate, fingerprint imaging is carried out using the display light for projecting the fibre faceplate, can effectively improve display light
Image quality can make the display device realize the integrated of fingerprint imaging function, be conducive to the electronic equipment screen accounting
Increase.
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
With reference to figure 1, the cross-sectional view of one embodiment of display device of the present invention is shown.
As shown in Figure 1, the display device includes：
It shows structure sheaf 110, shows light to show image for generating；Protective layer 120, at least partially fibre faceplate
122, the protective layer 120 has sensing face 121, and the display light transmitted through the fibre faceplate 122 is in the sensing face 121
Form the reflected light for carrying finger print information；Imaging sensor 130, it is corresponding with 122 position of the fibre faceplate, for acquiring
Reflected light is stated to obtain fingerprint image.
At least partially fibre faceplate 122 of the protective layer 120, the part display light are saturating through the fibre faceplate 122
It penetrates, forms the reflected light in the sensing face 121；Described image sensor 130 acquires the reflected light and obtains fingerprint image
Picture.Since fibre faceplate 122 has the characteristics that zero optical thickness, the protective layer 120 is at least partly set as described
The way of fibre faceplate 122 can't influence the image display function of the display structure sheaf 110；And fibre faceplate 122 is right
Transmitted ray has the function of collimation, and the display light transmitted through the fibre faceplate 122 has higher collimation, corresponding institute
Forming reflected light also has higher collimation, and the acquisition of fingerprint image can be realized by acquiring the reflected light；So institute
The collimation performance for transmiting 120 light of protective layer can be effectively improved by stating the use of fibre faceplate 122, can not influence institute
Under the premise of stating display 110 display function of structure sheaf, realizes the acquisition of fingerprint image, be conducive to described image sensor 140
Setting is hidden, the screen accounting for expanding electronic equipment is conducive to.
The display structure sheaf 110 shows light to realize that image is shown for generating.
In the present embodiment, the display structure sheaf 110 is that self-luminous shows structure sheaf, that is to say, that the display device
For self-emission display apparatus, i.e., different location, different colours display light be that the display structure sheaf 110 itself generates, and
It is not formed by transmission filter.
Specifically, the display structure sheaf 110 is diode displaying structure, that is to say, that the display structure sheaf
Include multiple light emitting diodes in 110.The light emitting diode shows light for generating, and passes through light-emitting diodes on different location
Display light caused by pipe realizes that image is shown.
In the present embodiment, the diode displaying structure is organic light-emitting diode display structure (Organic
Light-Emitting Diode, OLED), i.e., the described light emitting diode shown in structure sheaf 110 is Organic Light Emitting Diode,
The display of independent R, G, B three coloured light is realized using multilayer organic compound.Organic light-emitting diode display structure have thickness it is small,
The advantages that energy consumption is small, visible angle is big, therefore will use organic light-emitting diode display structure that can effectively improve the display
The display effect of device.
But in other embodiments of the invention, the diode displaying structure may be that inorganic light-emitting diode is aobvious
Show structure, i.e., the light emitting diode in the described display structure sheaf 110 is inorganic light-emitting diode.
Specifically, the diode displaying structure, which is active matrix organic light-emitting diode, shows structure (Active-
Matrix Organic Light Emitting Diode, AMOLED).Active matrix organic light-emitting diode shows structure packet
It includes：Multiple organic matter illuminators, each organic matter illuminator can only generate a kind of light among R, G, B three coloured light；Switch
Device (such as thin film transistor (TFT)) is connected with the organic matter illuminator.The active matrix organic light-emitting diode display knot
Structure adjusts the voltage being applied on the organic matter illuminator by the construction of switch, adjusts different organic matter illuminators and is produced
The intensity of raw light reaches and adjusts R, G, B RGB ratio, and then realizes that image is shown.
Active matrix organic light-emitting diode shows that structure has wide colour gamut (Wide Colorgamut), high contrast
The advantages such as (High Contrastratio), ultrathin design and low energy consumption, therefore the active matrix organic light-emitting diode
The use for showing structure, can effectively improve the display effect of the display device, improve the performance of the electronic equipment.But
In the present embodiment, show that the way of structure is only an example using active matrix organic light-emitting diode.Other implementations of the present invention
In example, the diode displaying structure can also be passive matrix organic light-emitting diode display structure, be reduced with reaching
Technology difficulty, the purpose for controlling product cost.
In conjunction with the enlarged structure signal for reference to figure 2, showing structure in box 140 in display device embodiment shown in Fig. 1
Figure.
The display structure sheaf 110 includes substrate 111 and multiple pixel units 112, and the multiple pixel unit 112 is in institute
Show and is arranged in array on substrate 111.
The substrate 111 provides mechanical support for providing technological operation surface, and for the pixel unit 112.Specifically
, the substrate 111 is transparent substrates, and the material of the substrate 111 is glass.
The pixel unit 112 is for generating the display light 110a to realize that image is shown.The display light 110a is certainly
It is emitted backwards to the direction of shown substrate 111, to show image.
As shown in Fig. 2, the multiple pixel unit 112 is arranged in array, there is sky at least between adjacent pixel unit 112
Gap 114.
The gap 114 is for making light be transmissive to the display structure sheaf 110, to improve the display structure sheaf
110 light transmittance.Specifically, being filled with translucent material, such as silica, silicon nitride or optical cement, UV in the gap 114
Glue etc..
It should be noted that in the present embodiment, the diode displaying structure is two pole of active matrix organic light-emitting
Pipe shows structure, therefore the pixel unit 111 includes Organic Light Emitting Diode and switching device, so the pixel unit
111 and opaque, the gap 114 only between adjacent pixel unit 111 can realize the transmission of light.But the present invention other
In embodiment, according to the pixel cell structure, the difference of design, it is light transmission that the pixel unit, which can have part, therefore
Light can also transmit the display structure sheaf from partial pixel unit.
It continues to refer to figure 1, the protective layer 120 is located on the display structure sheaf 110, for protecting the display structure
Layer 110 and other hardware.Protective layer 120 described in display light transmission caused by the display structure sheaf 110 realizes that image is aobvious
Show.
At least partially fibre faceplate 122 of the protective layer 120.Fibre faceplate 122 (Fiber Optics Plates,
FOP) be regularly arranged by a large amount of optical fiber and formed, thus it is big with numerical aperture, interstage coupling loss is small, high resolution, light
The features such as learning zero thickness, can transmit HD image without distortions.So the setting of the fibre faceplate 122 has no effect on institute
Protective layer 120 described in display light transmission is stated, that is, does not interfere with the display effect of the display structure sheaf 110.
The fibre faceplate 122 has sensing face 121, for receiving touch, to carry out fingerprint recognition.The fibre faceplate
122 show the surface that structure sheaf 110 is arranged for the sensing face 121 backwards to described.
In conjunction with reference to figure 2, finger presses when in the sensing face 121, and 122 lower section of the fibre faceplate shows structure sheaf
Display light 110a caused by 110 transmits the fibre faceplate 122, and reflection and refraction, institute's shape occur in the sensing face 121
At refraction light 110c continue to propagate along the direction backwards to the display device, shown for realizing image；It is formed and is carried
The reflected light 110b of finger print information is propagated towards the display structure sheaf 110, for realizing fingerprint imaging.
In the present embodiment, there are multiple pixel units 112 in the display structure sheaf 110, between adjacent pixel unit 112
Gap 114 with light transmission；Therefore the reflected light 110b can transmit the display structure sheaf through the gap 114 of light transmission
110, for realizing fingerprint imaging.
So the size in the gap 114 can influence the transmissivity of the reflected light 110b, it may be to the fingerprint image
Acquisition impact.Therefore between adjacent pixel unit gap 114 size should not it is too big also should not be too small.
If the size in gap 114 is too small between adjacent pixel unit 112, light penetrates the display structure sheaf 110
Transmitance it is too low, be unfavorable for the transmission of light, the transmissivity of reflected light may be influenced, influence adopting for the fingerprint image
Collection.In the present embodiment, the width in gap 114 is greater than or equal to 5 μm between adjacent pixel unit 112.Specifically, adjacent pixel list
The width in gap 114 refers to the distance in the sensing face 114 between projection in adjacent pixel unit 112 between member 112.
In addition, in the sensing face 121,114 projected area of the gap and 112 projected area of the pixel unit
The ratio between should not it is too big also should not be too small.
In the sensing face 121,114 projected area of the gap and 112 projected area of the pixel unit such as
Fruit is too small, then may influence the light transmittance of the display structure sheaf 110, especially be likely to result in reflection light transmission mistake
It is low, it is unfavorable for the acquisition of fingerprint image, is unfavorable for improving the quality of obtained fingerprint image.Specifically, in the present embodiment, in institute
It states in sensing face 121, the ratio between 114 projected area of the gap and 112 projected area of the pixel unit are less than or equal to 1:10,
The space accounting of i.e. described 114 projected area of gap and 112 projected area of the pixel unit is greater than or equal to 5%.
Since the fibre faceplate 122 has the function of collimation to transmitted ray, when the display light 110a is projected
When on to the sensing face 121, the part display light 110a transmitted through the fibre faceplate 122 has higher collimation
Property, to form the preferable reflected light 110b of collimation；And the reflected light 110b also needs to transmit the fibre faceplate
122, the fibre faceplate 122 can also collimate the reflected light 110b, so in the mistake for transmiting the fibre faceplate 122
Scattering process suffered by Cheng Zhong, the display light 110a and reflected light 110b is weaker, and it is less to be formed by stray light, institute
Finger print information in reflected light 110b is stated to retain completely.
Specifically, as depicted in figs. 1 and 2, in the present embodiment, the protective layer 120 includes cog region and viewing area, described
The protective layer of cog region is fibre faceplate 122.
The protective layer 120 of the cog region is for receiving to touch to carry out fingerprint image acquisition, the protection of the viewing area
Layer 120 is isolated for realizing hardware and external equipment.The protective layer 120 is set to cog region and viewing area, even if portion
The way for dividing the protective layer 120 to be set as fibre faceplate 122 can either reduce the use of fibre faceplate 122, reduce material supplier
Skill cost, additionally it is possible to the position that fingerprint collecting is indicated by the viewing area, so as to be conducive to the electronic device user
The promotion of experience.
It should be noted that the thickness of the protective layer 120 should not it is too big also should not be too small.
If the thickness of the protective layer 120 is too small, it is unfavorable for the defencive function of the protective layer 120, it may shadow
Ring the stability and service life of the display device.Specifically, in the present embodiment, the thickness of the protective layer 120 be more than or
Equal to 0.2mm.
In addition, in the present embodiment, the way for setting the part protective layer 120 to fibre faceplate 122 is only example.This
In invention other embodiment, the protective layer can also be fibre faceplate, i.e., the entire protective layer is fibre faceplate.It is this
Way can effectively improve the protecting effect of the protective layer 120.
Described image sensor 130 is for acquiring the reflected light 110b (as shown in Figure 2), and by the reflected light 110b
Optical signal be converted to electric signal, to realize the acquisition of fingerprint image.
Specifically, described image sensor 130 includes substrate 131 and the photosensitive layer 132 on the substrate 131.
The substrate 131 is for providing technological operation surface and mechanical support.Specifically, the substrate 131 can be glass
The photoelectric devices substrate such as glass substrate, or the semiconductor substrates such as silicon substrate.
The photosensitive layer 132 is used to acquire the optical signal of the reflected light 110b, and realizes that the photoelectricity of the optical signal turns
It changes, to obtain fingerprint image.There are sensor devices (such as light sensitive diode) in the photosensitive layer 132.
In the present embodiment, described image sensor 130 is located at the display structure sheaf 110 far from the protective layer 120
Side, i.e., the display structure sheaf 110 is between the protective layer 120 and described image sensor 130.So such as Fig. 2 institutes
Show, the reflected light 110b of the display structure sheaf 110 is transmitted through the gap 114, is projected to described image sensor 130
Photosensitive layer 132 on, by the sensor devices acquisition and and carry out opto-electronic conversion, to obtain the fingerprint image.
And by described image sensor 130 be set in it is described display structure sheaf 110 far from the protective layer 120 one
Side can be such that described image sensor 130 is not in the light path of the display light 110a, can effectively reduce described image
Influence of the sensor 130 to display 110 display function of structure sheaf, is conducive to the display effect for improving the display device.
In the present embodiment, the display structure sheaf 110 has backwards to the back side of the sensing face 121, described image sensing
Device 130 fits in the back side of the display structure sheaf 110.Specifically, the substrate 111 of the display structure sheaf 110 has surface
It is formed with the operating surface of the pixel unit 112, the back side of the display structure sheaf 110 is set opposite with the operating surface
111 surface of substrate set.
Specifically, described image sensor 130 fits in the back side of the display structure sheaf 110 by optical cement.It is described
The refractive index of optical cement and the refractive index close of glass, therefore the display structure sheaf 110 and the figure are realized by glass cement
As the way connected between sensor 130, the influence to light path can be effectively reduced, is conducive to improve image quality.
It should be noted that in the present embodiment, the only protective layer 120 of cog region is fibre faceplate 122, therefore institute
The position for stating imaging sensor 130 is corresponding with the position of the fibre faceplate 122, that is to say, that described image sensor 130 exists
Projection on the sense side 121 is located in the range of the fibre faceplate 122.By in this present embodiment, the display structure
Layer 110 is shown between the protective layer 120 and described image sensor 120 caused by the display structure sheaf 110
Show light 110a after the transmission of the fibre faceplate 122, on approximately perpendicular angular transmission to the sense side 121, to be formed
Reflected light 110b also the fibre faceplate 122 transmission after, described image sensor is projected to approximately perpendicular angle
130.So keeping 130 position of described image sensor corresponding with the position of the fibre faceplate 122, described image can be made to sense
The acquisition reflected light 110b more as possible of device 130, to be conducive to improve the quality of obtained fingerprint image.
With reference to figure 3, the cross-sectional view of another embodiment of display device of the present invention is shown.
The present embodiment and previous embodiment something in common, details are not described herein by the present invention.The present embodiment and previous embodiment
The difference is that in the present embodiment, the display structure sheaf 210 is backlight display structure sheaf.
Specifically, combining the enlarged structure signal for showing structure in box 240 in display device shown in Fig. 3 with reference to figure 4
Figure.
As shown in figure 4, the display structure sheaf includes：Backlight 211, for generating initial light 211a；Light modulation layer 212,
Between the backlight 211 and the sensing face 221, for making the initial light 211a form the display light 210a；
Described image sensor 230 is between the backlight 211 and the light modulation layer 212.
In the present embodiment, the backlight 211 is the area source formed by light guide plate, and produced initial light 211a's is equal
Evenness is higher, is conducive to the raising of display effect and imaging effect；The process of light modulation layer 212 shown in the initial light 211a transmissions
In, it is modulated by shown light modulation layer 212, to form the display light of different colours in different location, to realize that image is shown.
When described image sensor 230 is set between the backlight 211 and the light modulation layer 212, the light modulation
Layer 212 can play the role of blocking described image sensor 210, avoid described image sensor 210 from exposing, be advantageously implemented
The hiding setting of described image sensor is advantageously implemented under the premise of not influencing to show 210 display of structure sheaf effect, realizes
Fingerprint imaging, to improve the display effect of the display device.
In the present embodiment, the display structure sheaf 210 is liquid crystal display structure layer, so the light modulation layer 212 includes liquid
Crystal layer, the light modulation layer 212 make the deflection of liquid crystal molecule in liquid crystal layer by voltage, and colored filter and polarizing film is coordinated to make
The initial light 211a forms the display light 210a.So the setting of described image sensor 230 be not necessarily to existing producing line into
Row it is larger it is dynamic the manufacturing can be realized, without increasing additional process costs, and technology difficulty is relatively low, material cost compared with
It is low, be conducive to the control of manufacturing cost.
Specifically, as shown in figure 4, in the present embodiment, the display structure sheaf 210 includes：The first polarization being oppositely arranged
It mutually hangs down in the direction that shakes thoroughly of piece 212a and the second polarizing film 212e, the first polarizing film 212a and the second polarizing film 212e
Directly；First substrate 212b and second substrate between the first polarizing film 212a and the second polarizing film 212e
212d, the first substrate 212b and the second substrate 212d are oppositely arranged；Positioned at the first substrate 212b and described
Liquid crystal layer 212c between two substrate 212d.
Include multiple liquid crystal cells in the liquid crystal layer 212c, there is liquid crystal in liquid crystal cell.Liquid crystal energy in the liquid crystal cell
The polarization light polarization direction by the second polarizing film 212e is enough set to change；In the present embodiment, the display structure sheaf 210 is also
Include the colored filter (not shown) between the liquid crystal layer 212c and the first polarizing film 212a, it is described first
Beginning light forms the Color Polarization that color is different, direction of vibration is different after transmiting the liquid crystal cell and the colored filter
Light；After first polarizing film 212a described in the Color Polarization light transmission, the display light 210a is formed, it is aobvious for realizing image
Show.
It should be noted that in the present embodiment, the display device further includes：Touch control layer is located at the display structure sheaf
Between 210 and the protective layer 220, for detecting the position of finger and action on the protective layer 220, to realize touch-control work(
Energy.
Correspondingly, the present invention also provides a kind of electronic equipment, including：The display device of the present invention.
The display device is for showing information.Specifically, the display device is the display device of the present invention, specific skill
Art scheme refers to the specific embodiment of aforementioned display, and details are not described herein by the present invention.
In the present embodiment, the electronic equipment is the portable electronic devices such as mobile phone or tablet computer.The display device
For the display screen of the electronic equipment, the electronic equipment can not only realize display function, additionally it is possible to realize fingerprint imaging work(
Can, therefore the electronic equipment is provided with region of the position of display screen without additional setting fingerprint imaging, so this way
The area that the display screen can be increased is conducive to the screen accounting for improving the electronic equipment.
To sum up, the protective layer at least partially fibre faceplate, the part display light are transmitted through the fibre faceplate,
The reflected light is formed in the sensing face；Described image sensor acquires the reflected light and obtains fingerprint image.Due to optical fiber
Panel has the characteristics that zero optical thickness, therefore at least partly sets the protective layer to the way of the fibre faceplate not
It can influence the image display function of the display structure sheaf；And fibre faceplate has the function of collimation to transmitted ray, through institute
There is the display light for stating fibre faceplate transmission higher collimation, corresponding formed reflected light also to have higher collimation,
The acquisition of fingerprint image can be realized by acquiring the reflected light；So the use of the fibre faceplate can effectively improve
The collimation performance of the protective layer light is penetrated, it can be under the premise of influencing the display structure sheaf display function, realization refers to
The acquisition of print image is conducive to the hiding setting of described image sensor, is conducive to the screen accounting for expanding electronic equipment.Moreover,
In the present invention program, the display structure sheaf is that self-luminous shows that structure sheaf, described image sensor are located at the display structure
Side of the layer far from the protective layer；The display structure sheaf is backlight display structure sheaf, i.e., the described display structure sheaf includes the back of the body
Light source and display function ergosphere, described image sensor is between the light modulation layer and the backlight.The display structure
Layer at least partly can be between described image sensor and the protective layer, and described image sensor is not on described aobvious
Show in the light path of light, this set method can effectively reduce described image sensor to the display structure sheaf display function
It influences, is conducive to the display effect for improving the display device.In addition, in alternative of the present invention, the display structure sheaf is
Self-luminous shows that structure sheaf, described image sensor fit in the back side of the display structure sheaf；The display structure sheaf is the back of the body
Light display structures layer, described image sensor is between the light modulation layer and the backlight.Therefore described image sensor
Setting the manufacturing can be realized without carrying out larger change to the producing line of existing display device, without increasing additional technique
Cost, and technology difficulty is relatively low, material cost is relatively low, is conducive to the control of manufacturing cost.
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (16)
1. a kind of display device, which is characterized in that including：
It shows structure sheaf, shows light to show image for generating；
Protective layer, at least partially fibre faceplate, the fibre faceplate have sensing face, the display transmitted through the fibre faceplate
Light forms the reflected light for carrying finger print information in the sensing face；
Imaging sensor, it is corresponding with the fibre faceplate position, for acquiring the reflected light to obtain fingerprint image.
2. display device as described in claim 1, which is characterized in that the protective layer is fibre faceplate.
3. display device as described in claim 1, which is characterized in that the protective layer includes cog region and viewing area, described
The protective layer of cog region is fibre faceplate；
Projection of the described image sensor in the sensing face is located in the fibre faceplate.
4. display device as described in claim 1, which is characterized in that the thickness of the protective layer is greater than or equal to 0.2mm.
5. display device as described in claim 1, which is characterized in that the display structure sheaf is spontaneous light display structures；
The display structure sheaf is between the protective layer and described image sensor.
6. display device as claimed in claim 5, which is characterized in that the display structure sheaf is diode displaying knot
Structure.
7. display device as claimed in claim 6, which is characterized in that the diode displaying structure is organic light emission two
Pole pipe shows structure.
8. display device as claimed in claim 7, which is characterized in that the diode displaying structure has for active matrix
Machine diode displaying structure.
9. display device as claimed in claim 5, which is characterized in that the display structure sheaf has backwards to the sensing face
The back side, described image sensor fit in the back side of the display structure sheaf.
10. display device as claimed in claim 5, which is characterized in that described image sensor fits in institute by optical cement
State the back side of display structure sheaf.
11. display device as described in claim 1, which is characterized in that the display structure sheaf is backlight display structure sheaf, institute
Stating display structure sheaf includes：Backlight, for generating initial light；Light modulation layer, between the backlight and the sensing face,
For making the initial light form the display light；
Described image sensor is between the backlight and the light modulation layer.
12. display device as claimed in claim 11, which is characterized in that the display structure sheaf is liquid crystal display structure layer,
The light modulation layer includes liquid crystal layer.
13. the display device as described in claim 5 or 11, which is characterized in that the display structure sheaf includes：Multiple pixel lists
Member, the multiple pixel unit are arranged in array；
There is gap at least between adjacent pixel unit.
14. display device as claimed in claim 13, which is characterized in that between adjacent pixel unit the width in gap be more than or
Equal to 5 μm.
15. display device as claimed in claim 14, which is characterized in that in the sensing face, the gap projected area
It is less than or equal to 1 with the ratio between the pixel unit projected area:10.
16. a kind of electronic equipment, which is characterized in that including：Such as any one of claim 1 to claim 15 claim institute
The display device stated.
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| CN201710270912.4A CN108733140A (en) | 2017-04-24 | 2017-04-24 | Display device and electronic equipment |
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| CN201710270912.4A CN108733140A (en) | 2017-04-24 | 2017-04-24 | Display device and electronic equipment |
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| JP7450416B2 (en) | 2019-07-30 | 2024-03-15 | 三星ディスプレイ株式會社 | display device |
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