CN107967870A - Display unit and display screen - Google Patents
Display unit and display screen Download PDFInfo
- Publication number
- CN107967870A CN107967870A CN201610914803.7A CN201610914803A CN107967870A CN 107967870 A CN107967870 A CN 107967870A CN 201610914803 A CN201610914803 A CN 201610914803A CN 107967870 A CN107967870 A CN 107967870A
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- light
- sub
- white light
- display unit
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Classifications
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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
-
- 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
-
- 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
- G06V40/1341—Sensing with light passing through the finger
Abstract
A kind of display unit and display screen, display unit include：White light backboard, for sending white light, the face that the white light backboard is used to send white light is front, and has optical fingerprint sensor on the white light backboard front, and the optical fingerprint sensor is used to receive the reflected light with finger print information to obtain fingerprint image；The optical filter being oppositely arranged with the white light backboard front, the optical filter includes light-leaking area and multiple sub-pixel layers being set up in parallel, wherein, the light-leaking area is opposite with the position of the optical fingerprint sensor, and the color of multiple sub-pixel layers is different；Hollow and annular protection well on the white light backboard front, the protection well is around the optical fingerprint sensor, for stopping that the white light that white light backboard is sent is projected to the optical fingerprint sensor.The present invention under conditions of the screen accounting of display screen is not increased, can realize the function of full screen identification fingerprint image.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of display unit and display screen.
Background technology
Fingerprint identification function gradually becomes trend in an electronic.Existing fingerprint recognition module is usually a kind of independent
Structure, poor user experience is be easy to cause when by the application of fingerprint recognition module in an electronic, such as by fingerprint recognition mould
Group is applied can then influence the screen accounting of mobile phone in mobile phone front, apply that then position is more awkward at the mobile phone back side, and be not easy to make
With.
It is existing by fingerprint recognition module be applied to electronic device in when, usually have optical profile type and condenser type two ways.
Wherein, condenser type is mainly that transparent net structure is covered in the upper surface of the display screen of electronic device, passes through capacitive sensing
Mode, judges the fingerprint feature point of people, to carry out Fingerprint recognition；Optical profile type is mainly to be pasted using transparent imaging sensor
It is attached to the display screen surface of resistance device.In addition, for transparent imaging sensor, itself need to absorb certain light
Line obtains fingerprint image, therefore, it is difficult to what is done fully transparent, while the needs that are bonded of imaging sensor and display screen avoid pair
The pixel answered, therefore the input cost of abutted equipment is higher.
Therefore, optical fingerprint sensor is placed in the display screen of electronic device it is urgent to provide a kind of, can both met complete
The requirement of screen capture fingerprint image, and cost of manufacture can be reduced.
The content of the invention
The present invention solves the problems, such as to be to provide a kind of display unit and display screen, while screen display is realized, also
It can identify fingerprint image, and reduce cost of manufacture.
To solve the above problems, the present invention provides a kind of display unit, including：White light backboard, for sending white light, institute
It is front to state the face that white light backboard is used to send white light, and has optical fingerprint sensor, institute on the white light backboard front
State optical fingerprint sensor be used for receive carry the reflected light of finger print information to obtain fingerprint image；With white light backboard front
The optical filter being oppositely arranged, the optical filter include light-leaking area and multiple sub-pixel layers being set up in parallel, wherein, the leakage
Light region is opposite with the position of the optical fingerprint sensor, and the color of multiple sub-pixel layers is different；Positioned at described white
Hollow and annular protection well on light back board front, the protection well is around the optical fingerprint sensor, for stopping that white light is carried on the back
The white light that plate is sent is projected to the optical fingerprint sensor.
Optionally, the thickness of the protection well is equal to the distance between the white light backboard and the optical filter.
Optionally, the thickness of the protection well is less than the distance between the white light backboard and the optical filter.
Optionally, the protection well is hollow and annular column, between the diameter of the thickness of the protection well and the protection well
Ratio be aspect ratio, and the aspect ratio is 0.1~15.
Optionally, the display unit further includes：Supporting structure between the white light backboard and the optical filter,
And the thickness of the supporting structure is equal to the distance between the white light backboard and the optical filter.
Optionally, the protection well is laminated construction, including transparent material layer and positioned at the transparent material layer side wall
On light-shielding material layers, wherein, the transparent material layer is around the optical fingerprint sensor.
Optionally, the optical filter is three-colour filter or four colo(u)r filters.
Optionally, the display unit is arranged on display screen, is had on the display screen in the multiple of array arrangement
Display unit；The optical filter is RGB filter.
Optionally, the multiple sub-pixel layer includes red sub-pixel layer, blue subpixels layer and green sub-pixels layer；
The red sub-pixel layer, blue subpixels layer, green sub-pixels layer and light-leaking area are in strip and along going to setting side by side
Put.
Optionally, the face of the red sub-pixel layer, blue subpixels layer, green sub-pixels layer and the light-leaking area
Product is equal.
Optionally, the light-leaking area is located at the side of the multiple sub-pixel layer.
Optionally, along row on direction, the red sub-pixel layer, blue subpixels layer, green sub-pixels layer and
Light-leaking area put in order for：Red sub-pixel layer, green sub-pixels layer, blue subpixels layer and light-leaking area；Or
For light-leaking area, red sub-pixel layer, green sub-pixels layer and blue subpixels layer.
Optionally, the light-leaking area is between two adjacent subpixels layers.
Optionally, the light-leaking area is between the red sub-pixel layer and the green sub-pixels layer；Alternatively, institute
Light-leaking area is stated between the green sub-pixels layer and the blue subpixels layer.
Optionally, the display unit is arranged on display screen, is had on the display screen in the multiple of array arrangement
Display unit；The optical filter is CMYK optical filters.
Optionally, the multiple sub-pixel layer include cyan sub-pixel layer, pinkish red sub-pixels layer, yellow sub-pixel layer with
And black sub-pixels layer；The cyan sub-pixel layer, pinkish red sub-pixels layer, yellow sub-pixel layer, black sub-pixels layer and
Light-leaking area is in strip and along going to being set up in parallel.
Optionally, the cyan sub-pixel layer, pinkish red sub-pixels layer, yellow sub-pixel layer, black sub-pixels layer and
The area of light-leaking area is equal.
Optionally, the light-leaking area is located at the side of the multiple sub-pixel layer；Alternatively, the light-leaking area is located at two
Between a adjacent subpixels layer.
Optionally, the optical filter includes transparent substrates and the black matrix pattern layer on the transparent substrates,
The black matrix pattern layer includes multiple black matrix being spaced apart；Wherein, each sub-pixel layer is arranged at adjacent black
Between matrix, and the light-leaking area runs through adjacent black matrix.
Optionally, the white light backboard is OLED white light backboards.
Optionally, the white light backboard is micro LED white light backboards.
The present invention also provides a kind of display screen, including some above-mentioned display units.
Optionally, several described display units are arranged in array.
Optionally, multiple display units share a protection well；The same protection well is around the multiple aobvious
Show the optical fingerprint sensor of unit.
Optionally, several described display units are located at least one row of the display screen full screen；On one row
Part or all of display unit share a protection well.
Compared with prior art, technical scheme has the following advantages：
In the technical solution of display unit provided by the invention, including white light backboard, for sending white light, the white light
The face that backboard is used to send white light is front, and has optical fingerprint sensor, the optics on the white light backboard front
Fingerprint sensor is used to receive the reflected light with finger print information to obtain fingerprint image；It is opposite with white light backboard front to set
The optical filter put, the optical filter include light-leaking area and multiple sub-pixel layers being set up in parallel, wherein, the light-leaking area
It is opposite with the position of the optical fingerprint sensor, and the color of multiple sub-pixel layers is different；Positioned at the white light backboard
Hollow and annular protection well on front, the protection well is around the optical fingerprint sensor, for stopping that white light backboard is sent
White light be projected to the optical fingerprint sensor.Optical fingerprint sensor is integrated in the display unit by the present invention,
So that the display unit can both realize the function of display, additionally it is possible to realize the function of identification fingerprint image.
Brief description of the drawings
Fig. 1 is the cross-sectional view for the display unit that one embodiment of the invention provides；
Fig. 2 is white light backboard layout structure schematic diagram in Fig. 1；
Fig. 3 is optical filter layout structure schematic diagram in Fig. 1；
Fig. 4 is the cross-sectional view for the display unit that another embodiment of the present invention provides；
Fig. 5 is the cross-sectional view for the display unit that further embodiment of this invention provides；
Fig. 6 is white light backboard layout structure schematic diagram in Fig. 5；
Fig. 7 is optical filter layout structure schematic diagram in Fig. 5；
Fig. 8 is the cross-sectional view for the display unit that yet another embodiment of the invention provides；
Fig. 9 is white light backboard layout structure schematic diagram in Fig. 8；
Figure 10 is optical filter layout structure schematic diagram in Fig. 8；
Figure 11 is the layout structure schematic diagram for the display screen that one embodiment of the invention provides.
Embodiment
From background technology, optical fingerprint sensor is placed in the side in display screen by the prior art it is urgent to provide a kind of
Method, had not only met that the requirement of fingerprint can be gathered with full screen, but also can reduce cost of manufacture.
To solve the above problems, the present invention provides a kind of display unit, including：White light backboard, for sending white light, institute
It is front to state the face that white light backboard is used to send white light, and has optical fingerprint sensor, institute on the white light backboard front
State optical fingerprint sensor be used for receive carry the reflected light of finger print information to obtain fingerprint image；With white light backboard front
The optical filter being oppositely arranged, the optical filter include light-leaking area and multiple sub-pixel layers being set up in parallel, wherein, the leakage
Light region is opposite with the position of the optical fingerprint sensor, and the color of multiple sub-pixel layers is different；Positioned at described white
Hollow and annular protection well on light back board front, the protection well is around the optical fingerprint sensor, for stopping that white light is carried on the back
The white light that plate is sent is projected to the optical fingerprint sensor.
Display unit provided by the invention, while colored display is realized, additionally it is possible to realize the identification of fingerprint image.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Fig. 1 to Fig. 3 is the structure diagram for the display unit that one embodiment of the invention provides, and Fig. 1 is implemented for the present invention one
The cross-sectional view for the display unit that example provides, Fig. 2 are white light backboard layout structure schematic diagram in Fig. 1, and Fig. 3 is in Fig. 1
Optical filter layout structure schematic diagram.
Referring to figs. 1 to Fig. 3, the display unit includes：
White light backboard 101, for sending white light, the white light backboard 101 is used to send the face of white light for front (not
Sign), and there is optical fingerprint sensor 102 on 101 front of white light backboard, the optical fingerprint sensor 102 is used for
The reflected light with finger print information is received to obtain fingerprint image；
The optical filter 103 being oppositely arranged with 101 front of white light backboard, the optical filter 103 include light-leaking area 107
And multiple sub-pixel layers being set up in parallel, wherein, the light-leaking area 107 and the position of the optical fingerprint sensor 102
Relatively, and multiple sub-pixel layers color it is different；
Hollow and annular protection well 108 on 101 front of white light backboard, the protection well 108 is around the light
Fingerprint sensor 102 is learned, for stopping that the white light that the white light backboard 101 is sent is projected to the optical fingerprint sensor
102。
Display unit provided in this embodiment is described in detail below with reference to attached drawing.
The optical filter 103 is three-colour filter or four colo(u)r filters.In the present embodiment, it is with the optical filter 103
Three-colour filter, and the optical filter 103 be RGB filter exemplified by illustrate.The multiple sub-pixel layer includes red son
Pixel layer 104, blue subpixels layer 105 and green sub-pixels layer 106.
It should be noted that in other embodiments, the optical filter can also be other three-colour filters.
The white light backboard 101 is used to send white light.In the present embodiment, sent according to the white light backboard 101 white
The correspondence between sub-pixel layer in coloured light and the optical filter 103, the white light that the white light backboard 101 is sent point
For three white light sub-pixels 10, and three white light sub-pixels 10 and the red sub-pixel layer 104, blue subpixels layer
105 and the position of green sub-pixels layer 106 correspond so that white light that three white light sub-pixels 10 are sent difference
The sub-pixel layer being projected in the red sub-pixel layer 104, blue subpixels layer 105 and green sub-pixels layer 106
On.
Specifically, the white light that the white light backboard 101 is sent is projected to the red sub-pixel layer 104, via described
Red light is sent after red sub-pixel layer 104；The white light that the white light backboard 101 is sent is projected to the blue subpixels layer
105, via sending blue light after the green sub-pixels layer 105；The white light that the white light backboard 101 is sent is projected to described
Green sub-pixels layer 106, via sending green light after the green sub-pixels layer 106.
In the present embodiment, the white light backboard 101 is carried on the back for OLED (Organic Light-Emitting Diode) white light
Plate.In other embodiments, the white light backboard can also be micro LED white light backboards.
Optical fingerprint sensor 102 on the white light backboard 101 is used to obtain fingerprint image, the optical finger print
The position of sensor 102 is opposite with the position of the light-leaking area 107 in the optical filter 103, ensures anti-with finger print information
Penetrating light can be projected on the optical fingerprint sensor 102 via the light-leaking area 107.
The protection well 108 is used to prevent the white light of 102 side of optical fingerprint sensor to be projected to the optics
On fingerprint sensor 102, so as to prevent the optical fingerprint sensor 102 from producing photosensitive saturation, ensure that the optical finger print passes
Sensor 102 has the ability of identification fingerprint image.
The protection well 108 is laminated construction, including transparent material layer and on the transparent material layer side wall
Light-shielding material layers, wherein, the transparent material layer is around the optical fingerprint sensor 102.The light-shielding material layers can hinder
The light in addition to the reflected light with finger print information is kept off, stops that the light is projected on the optical fingerprint sensor 102,
The light is avoided to cause harmful effect to the optical fingerprint sensor 102.
In the present embodiment, the thickness of the protection well 108 is equal between the white light backboard 101 and the optical filter 103
Distance.The protection well 108 has opposite both ends, and one end is in contact with the white light backboard 101, the other end and the filter
Mating plate 103 is in contact.Therefore, the protection well 108 not only acts as the effect for preventing 102 photosensitive saturation of optical fingerprint sensor,
It can also play the role of the support column between white light backboard 101 and the optical filter 103, for the white light backboard 101 and institute
State and provide support between optical filter 103.
It should be noted that in other embodiments, with reference to figure 4, Fig. 4 is the display list that another embodiment of the present invention provides
The cross-sectional view of member, the thickness of the protection well 108 are less than between the white light backboard 101 and the optical filter 103
Distance.It is described protection well 108 be hollow and annular column, it is described protection well 108 thickness H with it is described protect well 108 diameter D it
Between ratio be aspect ratio.The aspect ratio is unsuitable too small, also should not be too large.If the aspect ratio is too small, the protection
Well 108 stops that the ability of interference light is weak, in addition to the reflected light with finger print information, also have other light be projected to it is described
On optical fingerprint sensor 102, the ability that the optical fingerprint sensor 102 identifies fingerprint image is influenced.
For this reason, when it is described protection well 108 thickness be less than between the white light backboard 101 and the optical filter 103 away from
From when, it is described protection well 108 be hollow and annular column, it is described protection well 108 aspect ratio be 0.1~15.
With reference to figure 4, the display unit further includes：Branch between the white light backboard 101 and the optical filter 103
Support structure 109, and the thickness of the supporting structure 109 be equal between the white light backboard 101 and the optical filter 103 away from
From.The supporting structure 109 plays the role of the support white light backboard 101 and the optical filter 103；The supporting structure
109 material can be light transmissive material.
The display unit is arranged on display screen, has multiple display lists in array arrangement on the display screen
Member；The red sub-pixel layer 104, blue subpixels layer 105, green sub-pixels layer 106 and light-leaking area 107 are in strip
And along going to being set up in parallel.
In the present embodiment, the red sub-pixel layer 104, blue subpixels layer 105, green sub-pixels layer 106 and leakage
The area in light region 107 is equal.
In the present embodiment, with reference to figure 3, the light-leaking area 107 is located at the side of the multiple sub-pixel layer.
Wherein, the red sub-pixel layer 104, blue subpixels layer 105, green sub-pixels layer 106 and light-leaking area
107 put in order for：Red sub-pixel layer 104, green sub-pixels layer 106, blue subpixels layer 105 and light-leaking area
107.The arrangement of the red sub-pixel layer 104, blue subpixels layer 105, green sub-pixels layer 106 and light-leaking area 107
Sequentially can also be：Light-leaking area 107, red sub-pixel layer 104, green sub-pixels layer 106, blue subpixels layer 105.
Since the light-leaking area 107 is located at the side of the pixel layer so that each sub-pixel layer in the pixel layer
Arrangement mode can with of the prior art identical, therefore the drive circuit accordingly used can also with the prior art provide
Drive circuit is identical.
In the present embodiment, the optical filter 103 includes transparent substrates 11 and the black on the transparent substrates 11
Matrix diagram pattern layer (does not indicate), and the black matrix pattern layer includes multiple black matrix 12 being spaced apart；Wherein, Mei Yizi
Pixel layer is arranged between adjacent black matrix 12, and the light-leaking area 107 runs through adjacent black matrix.Specifically, it is described red
Sub-pixels layer 104, blue subpixels layer 105 and green sub-pixels layer 106 are arranged between adjacent black matrix 12.
It in display unit provided in this embodiment, can realize that colourama is shown, identification fingerprint image can also be provided
Function.Specifically, with reference to reference to figure 1, the method for realizing display and fingerprint recognition using the display unit includes：
Using the display unit obtain pixel unit, the pixel unit include red sub-pixel, blue subpixels with
And green sub-pixels, wherein, the white light that the white light backboard 101 is sent obtains described via the red sub-pixel layer 104
Red sub-pixel, the white light that the white light backboard 101 is sent obtain the sub- picture of blueness via the blue subpixels layer 105
Element, the white light that the white light backboard 101 is sent obtain the green sub-pixels via the green sub-pixels layer 106.
Detection light is produced using the display unit, after the detection light is projected on the finger on display screen, warp
Reflected light with finger print information is reflected to form by the finger, and the reflected light is projected to via the light-leaking area 107
On the optical fingerprint sensor 102, to obtain the fingerprint image of finger.
Wherein, the detection light includes the white light that the white light backboard 101 is sent；The white light is via the light leak
Region 107 is projected on the finger on display screen.
The detection light can also include the white light that sends of the white light backboard 101 via the red sub-pixel layer
The red light obtained after 105；The red light is projected on the finger on display screen via the light-leaking area 107.
The detection light can also include the white light that sends of the white light backboard 101 via the blue subpixels layer
The blue light obtained after 105；The blue light is projected on the finger on display screen via the light-leaking area 107.
The detection light can also include the white light that sends of the white light backboard 101 via the green sub-pixels layer
The green light obtained after 106；The green light is projected on the finger on display screen via the light-leaking area 107.
It should also be noted that, it can reasonably select what the optical fingerprint sensor 102 received to carry finger print information
Reflected light color, with determine white light, red light, blue light or green light in one or more colors light formed
Reflected light is as detection light.For example, the color that the optical fingerprint sensor 102 receives the reflected light with finger print information is red
During color, then red light is detection light；The color that the optical fingerprint sensor 102 receives the reflected light with finger print information is indigo plant
During color, then blue light is detection light.
The protection well 108 can both play the role of preventing 102 photosensitive saturation of optical fingerprint sensor, can also be by band
The reflected light for having finger print information is smoothly imported on the optical fingerprint sensor 102.
Further embodiment of this invention also provides a kind of display unit, and Fig. 5 to Fig. 7 is the aobvious of further embodiment of this invention offer
Show the structure diagram of unit, wherein, Fig. 5 is the cross-sectional view for the display unit that further embodiment of this invention provides,
Fig. 6 is white light backboard layout structure schematic diagram in Fig. 5, and Fig. 7 is optical filter layout structure schematic diagram in Fig. 5.
With reference to figure 5 to Fig. 7, the display unit includes：
White light backboard 201, for sending white light, the face that the white light backboard 201 is used to send white light is front, and
There is optical fingerprint sensor 202, the optical fingerprint sensor 202 is carried for reception on 201 front of white light backboard
The reflected light of finger print information is to obtain fingerprint image；
The optical filter 203 being oppositely arranged with 201 front of white light backboard, the optical filter 203 include light-leaking area 207
And multiple sub-pixel layers being set up in parallel, wherein, the light-leaking area 207 and the position of the optical fingerprint sensor 202
Relatively, and multiple sub-pixel layers color it is different；
Hollow and annular protection well 208 on 201 front of white light backboard, the protection well 208 is around the light
Fingerprint sensor 202 is learned, for stopping that the white light that white light backboard 201 is sent is projected to the optical fingerprint sensor 202.
The optical filter 203 is three-colour filter or four colo(u)r filters.In the present embodiment, it is with the optical filter 203
Three-colour filter and the optical filter 203 are to illustrate exemplified by RGB filter.The multiple sub-pixel layer includes red sub- picture
Plain layer 204, blue subpixels layer 205 and green sub-pixels layer 206.Wherein, the red sub-pixel layer 204, the sub- picture of blueness
Plain layer 205, green sub-pixels layer 206 and light-leaking area 207 are in strip and along going to being set up in parallel.
Wherein, the red sub-pixel layer 204, blue subpixels layer 205, green sub-pixels layer 206 and light-leaking area
207 area is equal.
Unlike previous embodiment, in the present embodiment, the light-leaking area 207 positioned at two adjacent subpixels layers it
Between.For example, the light-leaking area 207 can be between the red sub-pixel layer 204 and the green sub-pixels layer 206；
Alternatively, the light-leaking area 207 may be located on green as between layer 206 and the blue subpixels layer 205.
Correspondingly, the white light backboard 201 includes three white light sub-pixels 20, the optical fingerprint sensor 201
Between two neighboring white light sub-pixel 20, ensure the optical fingerprint sensor 201 and the position phase of the light-leaking area 207
It is right.
The optical filter 203 includes transparent substrates 21 and the black matrix pattern layer on the transparent substrates 21
(not indicating), the black matrix pattern layer include multiple black matrix 22 being spaced apart；Wherein, the red sub-pixel layer
204th, blue subpixels layer 205 and green sub-pixels layer 206 are arranged between adjacent black matrix 22, and the light-leaking area
207 run through adjacent black matrix 22.
Yet another embodiment of the invention also provides a kind of display unit, and Fig. 8 to Figure 10 is what yet another embodiment of the invention provided
The cross-sectional view of display unit, Fig. 9 are white light backboard layout structure schematic diagram in Fig. 8, and Figure 10 is optical filter cloth in Fig. 8
Office's structure diagram.
With reference to figure 8 to Figure 10, the display unit includes：
White light backboard 301, for sending white light, the face that the white light backboard 301 is used to send white light is front, and
There is optical fingerprint sensor 302, the optical fingerprint sensor 302 is carried for reception on 301 front of white light backboard
The reflected light of finger print information is to obtain fingerprint image；
The optical filter 303 being oppositely arranged with 301 front of white light backboard, the optical filter 303 include light-leaking area 307
And multiple sub-pixel layers being set up in parallel, wherein, the light-leaking area 307 and the position of the optical fingerprint sensor 302
Relatively, and multiple word pixel layers color it is different；
Hollow and annular protection well 308 on 301 front of white light backboard, the protection well 308 is around the light
Fingerprint sensor 302 is learned, for stopping that the white light that white light backboard 301 is sent is projected to the optical fingerprint sensor 302.
Unlike previous embodiment, in the present embodiment, the optical filter 303 is four colo(u)r filters, below will be with institute
Optical filter 203 is stated the present embodiment is described in detail for CMYK optical filters.
The display unit is arranged on display screen, has multiple display lists in array arrangement on the display screen
Member.Wherein, the multiple sub-pixel layer includes cyan sub-pixel layer 304, pinkish red sub-pixels layer 305, yellow sub-pixel layer 306
And black sub-pixels layer 316；Wherein, the cyan sub-pixel layer 304, pinkish red sub-pixels layer 305, yellow sub-pixel layer
306th, black sub-pixels layer 316 and light-leaking area 307 are in strip and along going to being set up in parallel.
In the present embodiment, the cyan sub-pixel layer 304, pinkish red sub-pixels layer 305, yellow sub-pixel layer 306, black
Sub-pixel layer 316 and the area of light-leaking area 307 are equal.
In the present embodiment, the side that the multiple sub-pixel layer is located at using the light-leaking area 307 is used as example.Specifically
Ground, the light-leaking area 307 can be located at 304 side of cyan sub-pixel layer, and the light-leaking area 307 and the magenta
Sub-pixels layer 305 is located at the opposite both sides of the cyan sub-pixel layer 304；Alternatively, the light-leaking area 307 may be located on
The side of the black sub-pixels layer 316, and the light-leaking area 307 is located at the black with the yellow sub-pixel layer 306
The opposite both sides of sub-pixel layer 316.
It should be noted that in other embodiments, the light-leaking area may be located on two adjacent words pixel layers it
Between.
Correspondingly, the white light backboard 301 includes four white light sub-pixels 30, and four white light sub-pixels 30 with
The cyan sub-pixel layer 304, pinkish red sub-pixels layer 305, the position of yellow sub-pixel layer 306 and black sub-pixels layer 316
Put one-to-one corresponding so that the white light that four white light sub-pixels 30 are sent is projected in the multiple sub-pixel layer respectively
On one sub-pixel layer.
Specifically, the white light that the white light sub-pixel 30 is sent is projected to the cyan sub-pixel layer 304, via described
Cyan light is sent after cyan sub-pixel layer 304；The white light that the white light sub-pixel 30 is sent is projected to the pinkish red dice picture
Plain layer 305, via sending pinkish red coloured light after the pinkish red sub-pixels layer 305；The white light that the white light sub-pixel 30 is sent
The yellow sub-pixel layer 306 is projected to, via sending sodium yellow after the yellow sub-pixel layer 306；The white light sub-pixel
30 white lights sent are projected to the black sub-pixels layer 316, via sending black light after the black sub-pixels layer 316.
In the present embodiment, the white light backboard 301 is carried on the back for OLED (Organic Light-Emitting Diode) white light
Plate.In other embodiments, the white light backboard can also be micro LED white light backboards.
The optical filter 303 includes transparent substrates 31 and the black matrix pattern layer on the transparent substrates 31
(not indicating), the black matrix pattern layer include multiple black matrix 32 being spaced apart；Wherein, each sub-pixel layer is all provided with
Put between adjacent black matrix 32, and the light-leaking area 307 runs through adjacent black matrix.Specifically, the cyan sub-pixel layer
304th, pinkish red sub-pixels layer 305, yellow sub-pixel layer 306 and black sub-pixels layer 316 are arranged at adjacent black matrix 32
Between.
It in display unit provided in this embodiment, can realize that colourama is shown, identification fingerprint image can also be provided
Function.Specifically, with reference to reference to figure 8, the method for realizing display and fingerprint recognition using the display unit includes：
Obtain pixel unit using the display unit, the pixel unit include cyan sub-pixel, pinkish red sub-pixels,
Yellow sub-pixel and black sub-pixels, wherein, the white light that the white light backboard 301 is sent is via the cyan sub-pixel layer
304 obtain the cyan sub-pixel, and the white light that the white light backboard 301 is sent is obtained via the pinkish red sub-pixels layer 305
The pinkish red sub-pixels are obtained, the white light that the white light backboard 301 is sent obtains described via the flavine sub-pixel layer 306
Yellow sub-pixel, the white light that the white light backboard 301 is sent obtain the black picture via the black sub-pixels layer 316
Element；
Detection light is produced using the display unit, after the detection light is projected on the finger on display screen, warp
Reflected light with finger print information is reflected to form by the finger, and the reflected light is projected to via the light-leaking area 307
On the optical fingerprint sensor 302, to obtain the fingerprint image of finger.
Wherein, the detection light includes the white light that white light backboard 301 is sent；The white light is via the light-leaking area
307 are projected on the finger on display screen.
The detection light can also include the white light that sends of the white light backboard 301 via the cyan sub-pixel layer
The cyan light obtained after 304；The cyan light is projected on the finger on display screen via the light-leaking area 307.Institute
The white light backboard 301 can also be included via the pinkish red coloured light obtained after the pinkish red sub-pixels layer 305 by stating detection light；Institute
Pinkish red coloured light is stated to be projected on the finger on display screen via the light-leaking area 307.
The detection light can also include the white light that sends of the white light backboard 301 via the yellow sub-pixel layer
The sodium yellow obtained after 306；The sodium yellow is projected on the finger on display screen via the light-leaking area 307.Institute
The white light backboard 301 can also be included via the black light obtained after the black sub-pixels layer 316 by stating detection light；It is described black
Coloured light is projected on the finger on display screen via the light-leaking area 307.
It should also be noted that, it can reasonably select what the optical fingerprint sensor 302 received to carry finger print information
Reflected light extension, to determine one or more face in white light, cyan light, pinkish red coloured light, sodium yellow or black light
The reflected light that the light of color is formed is as detection light.For example, the optical fingerprint sensor 302 receives the reflection with finger print information
When the color of light is cyan, then cyan light is detection light；The optical fingerprint sensor 302 receives the reflection with finger print information
When the color of light is yellow, then sodium yellow is detection light.The present invention also provides a kind of display screen, including several are described above
Display unit so that the display screen also realizes the function of fingerprint recognition, and the system of display screen while screen display is realized
It is low to make cost.
Specifically, several described display units are arranged in array, so as to meet the needs of full screen gathers fingerprint.
It should be noted that in other embodiments, when display screen only needs subregion to realize fingerprint identification function,
Can also only have subregion in the display screen includes above-mentioned display unit.
The protection well in several display units in the display screen can be separate, that is to say, that each is aobvious
Show that unit has an independent protection well.Multiple display units in the display screen can also share a protection
Well, the protection well is across the multiple display unit, optical finger print of the same protection well around the multiple display unit
Sensor.For example, the protection well shares same across 5 display units in same row, 5 display units
Protect well；Alternatively, the protection well shares same across 10 display units in same row, 10 display units
A protection well.
When several described display units are located at least one row of the display screen full screen, the portion on a row
Divide or whole display units can share a protection well.
Figure 11 shows a kind of layout structure schematic diagram of display screen, and the display screen 40 includes some above-mentioned display lists
Member, by taking each display unit includes 3 white light sub-pixels (not indicating) as an example, the display unit includes optical finger print sensing
Device 42 and protection well 48；Wherein, several described display units are located at least one row of 40 full screen of display screen, institute
State the part or all of display unit on a row and share a protection well 48, that is to say, that same protection well 48 is around described
The optical fingerprint sensor 42 in part or all of display unit on one row.
Direction from left to right in Figure 11, whole display units on first row share a protection well 48, the protection well
48 optical fingerprint sensor 42 in whole display units on the first row；Part display unit on secondary series is total to
With a protection well 48, optical fingerprint sensor of the protection well 48 in the part display unit on the secondary series
42.And whole display units in same row can also have mutually independent protection well 48, each protection well 48 is around single
Optical fingerprint sensor 42 in a display unit.Since the optical fingerprint sensor is integrated on white light backboard, the light
It is small to learn influence of the fingerprint sensor to the screen accounting of the display screen so that the display screen has larger screen accounting, can be with
Allow terminal user to obtain the screen accounting of bigger, improve user experience.Shown in addition, display unit provided by the invention is applied
On screen, it can also realize and unlocked by fingerprint function is carried out to single application program.
In addition, using the OLED self-luminous principles of white light backboard, solving optical fingerprint sensor needs backlight to limit, can
Shone in itself as detection light by the use of OLED pixel, obtain fingerprint image.
Meanwhile the optical fingerprint sensor is set on the white light backboard, the picture of display unit formation will not be reduced
Plain density (PPI, Pixels Per Inch), and will not because the optical fingerprint sensor is set and caused by display screen thickness
Increase, the thickness of the display screen are thin.
Also, optical fingerprint sensor is set in the display screen so that the security of application increases substantially.With hand
Exemplified by machine, even if after mobile phone is unlocked by people, due to needing fingerprint identification using the opening of itself, and can set using unlock fingerprint
It is different from mobile phone unlock fingerprint, it might even be possible to the confirmation of multiple fingers is set, therefore application is difficult to be opened, so as to improve hand
Machine safety in utilization.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, are not departing from this
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the scope of restriction.
Claims (25)
- A kind of 1. display unit, it is characterised in that including：White light backboard, for sending white light, the face that the white light backboard is used to send white light is front, and the white light is carried on the back There is optical fingerprint sensor, the optical fingerprint sensor is used to receive the reflected light with finger print information to obtain on plate front Fetching print image；The optical filter being oppositely arranged with the white light backboard front, the optical filter include light-leaking area and multiple are set up in parallel Sub-pixel layer, wherein, the light-leaking area is opposite with the position of the optical fingerprint sensor, and the face of multiple sub-pixel layers Color is different；Hollow and annular protection well on the white light backboard front, the protection well surround the optical fingerprint sensor, For stopping that the white light that white light backboard is sent is projected to the optical fingerprint sensor.
- 2. display unit as claimed in claim 1, it is characterised in that it is described protection well thickness be equal to the white light backboard with The distance between described optical filter.
- 3. display unit as claimed in claim 1, it is characterised in that it is described protection well thickness be less than the white light backboard with The distance between described optical filter.
- 4. display unit as claimed in claim 3, it is characterised in that the protection well is hollow and annular column, the protection well Thickness and the protection well diameter between ratio be aspect ratio, and the aspect ratio is 0.1~15.
- 5. display unit as claimed in claim 3, it is characterised in that the display unit further includes：Carried on the back positioned at the white light Supporting structure between plate and the optical filter, and the thickness of the supporting structure is equal to the white light backboard and the optical filter The distance between.
- 6. display unit as claimed in claim 1, it is characterised in that the protection well is laminated construction, including light transmissive material Layer and the light-shielding material layers on the transparent material layer side wall, wherein, the transparent material layer refers to around the optics Line sensor.
- 7. display unit as claimed in claim 1, it is characterised in that the optical filter filters for three-colour filter or four colors Piece.
- 8. the display unit as described in claim 1 or 7, it is characterised in that the display unit is arranged on display screen, described There are multiple display units in array arrangement on display screen；The optical filter is RGB filter.
- 9. display unit as claimed in claim 8, it is characterised in that the multiple sub-pixel layer include red sub-pixel layer, Blue subpixels layer and green sub-pixels layer；The red sub-pixel layer, blue subpixels layer, green sub-pixels layer and leakage Light region is in strip and along going to being set up in parallel.
- 10. display unit as claimed in claim 9, it is characterised in that the red sub-pixel layer, blue subpixels layer, green Sub-pixels layer and the area of the light-leaking area are equal.
- 11. display unit as claimed in claim 9, it is characterised in that the light-leaking area is located at the multiple sub-pixel layer Side.
- 12. display unit as claimed in claim 11, it is characterised in that on along row to direction, the red sub-pixel layer, Blue subpixels layer, green sub-pixels layer and light-leaking area put in order for：Red sub-pixel layer, green sub-pixels layer, Blue subpixels layer and light-leaking area；Or it is light-leaking area, red sub-pixel layer, green sub-pixels layer and blueness Pixel layer.
- 13. display unit as claimed in claim 9, it is characterised in that the light-leaking area is located at two adjacent subpixels layers Between.
- 14. display unit as claimed in claim 13, it is characterised in that the light-leaking area is located at the red sub-pixel layer Between the green sub-pixels layer；Alternatively, the light-leaking area is located at the green sub-pixels layer and the blue subpixels Between layer.
- 15. the display unit as described in claim 1 or 7, it is characterised in that the display unit is arranged on display screen, institute State the multiple display units having on display screen in array arrangement；The optical filter is CMYK optical filters.
- 16. display unit as claimed in claim 15, it is characterised in that the multiple sub-pixel layer includes cyan sub-pixel Layer, pinkish red sub-pixels layer, yellow sub-pixel layer and black sub-pixels layer；The cyan sub-pixel layer, pinkish red sub-pixels Layer, yellow sub-pixel layer, black sub-pixels layer and light-leaking area are in strip and along going to being set up in parallel.
- 17. display unit as claimed in claim 16, it is characterised in that the cyan sub-pixel layer, pinkish red sub-pixels layer, The area of yellow sub-pixel layer, black sub-pixels layer and light-leaking area is equal.
- 18. display unit as claimed in claim 16, it is characterised in that the light-leaking area is located at the multiple sub-pixel layer Side；Alternatively, the light-leaking area is between two adjacent subpixels layers.
- 19. display unit as claimed in claim 1, it is characterised in that the optical filter includes transparent substrates and positioned at institute The black matrix pattern layer on transparent substrates is stated, the black matrix pattern layer includes multiple black matrix being spaced apart；Wherein, each sub-pixel layer is arranged between adjacent black matrix, and the light-leaking area runs through adjacent black matrix.
- 20. display unit as claimed in claim 1, it is characterised in that the white light backboard is OLED white light backboards.
- 21. display unit as claimed in claim 1, it is characterised in that the white light backboard is micro LED white light backboards.
- A kind of 22. display screen, it is characterised in that including：Including some such as claim 1~21 any one of them display unit.
- 23. display screen as claimed in claim 22, it is characterised in that several described display units are arranged in array.
- 24. display screen as claimed in claim 22, it is characterised in that multiple display units share a protection well；Together Optical fingerprint sensor of one protection well around the multiple display unit.
- 25. display screen as claimed in claim 24, it is characterised in that it is complete that several described display units are located at the display screen On at least one row of screen；Part or all of display unit on one row shares a protection well.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610914803.7A CN107967870B (en) | 2016-10-20 | 2016-10-20 | Display unit and display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610914803.7A CN107967870B (en) | 2016-10-20 | 2016-10-20 | Display unit and display screen |
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| CN107967870B CN107967870B (en) | 2020-03-10 |
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| CN201610914803.7A Active CN107967870B (en) | 2016-10-20 | 2016-10-20 | Display unit and display screen |
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| CN109709701A (en) * | 2019-01-16 | 2019-05-03 | 柳州阜民科技有限公司 | A kind of display device and the electronic equipment using the display device |
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| CN107967870B (en) | 2020-03-10 |
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