CN109614958A - A kind of liquid crystal display device, lines recognition methods and electronic equipment - Google Patents
A kind of liquid crystal display device, lines recognition methods and electronic equipment Download PDFInfo
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- CN109614958A CN109614958A CN201910008508.9A CN201910008508A CN109614958A CN 109614958 A CN109614958 A CN 109614958A CN 201910008508 A CN201910008508 A CN 201910008508A CN 109614958 A CN109614958 A CN 109614958A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Liquid Crystal (AREA)
- Human Computer Interaction (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Multimedia (AREA)
Abstract
The invention discloses a kind of liquid crystal display devices, lines recognition methods and electronic equipment, in the viewing area of liquid crystal display device, lines identification region is set, by making region setting opening of the reflector plate in backlight module in corresponding lines identification region, and the lines identification structure of the corresponding opening is set, the light that backlight module can be made to issue is after liquid crystal display panel, after being reflected again via the textured main body of tool, it can be incident in lines identification structure by backlight module and across the opening, to be received by lines identification structure, and then liquid crystal display device can be made to realize lines identification function.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of liquid crystal display device, lines recognition methods and electronics are set
It is standby.
Background technique
With the high speed development of technology, the mobile product with bio-identification function is progressed into people's lives.By
It is that human body is inherent and unique and can be with other people phase region another characteristics in fingerprint, it is by the system on finger tip skin surface
Column valley and a ridge composition, the composition details of these valley and a ridges generally include the bifurcated of ridge, the end of ridge, arch, the arch of tent-type,
The details such as left-handed, dextrorotation, spiral or bispin, determine the unique trait of fingerprint, therefore have received widespread attention.Currently, by
There is backlight module in liquid crystal display device (Liquid Crystal Display, LCD), and be provided with and be used in backlight module
The material of the reflector plate of reflected light, reflecting layer is generally light-proof material, can not pass through back so as to cause the light of finger reflection
Optical mode group causes application of the optical fingerprint identification technology on LCD to be affected.
Summary of the invention
The embodiment of the present invention provides a kind of liquid crystal display device, lines recognition methods and electronic equipment, for making liquid crystal
Showing device realizes optical fingerprint identification function.
The embodiment of the invention provides a kind of liquid crystal display devices, comprising: backlight module and goes out positioned at the backlight module
The viewing area of the liquid crystal display panel of light side, the liquid crystal display device has lines identification region；
Reflector plate in the backlight module has opening in the region of the correspondence lines identification region；
The liquid crystal display device further include: the lines of the corresponding opening setting identifies structure；
The lines identification structure is for receiving the light across the opening that the backlight module directly issues, Yi Jijie
Receive the light that the opening is passed through after being had textured main body reflection.
Optionally, in embodiments of the present invention, the lines identification structure includes: to be sequentially located at the backlight module to deviate from
Imaging arrangement, photosensitive structure and the light shield layer of the liquid crystal display panel side；Wherein, the photosensitive structure includes multiple senses
Optical element；The light shield layer covers each photosensitive element in the LCD display in the orthographic projection of the liquid crystal display panel
The orthographic projection of plate；
The light that the imaging arrangement is used to pass through the opening is incident on the photosensitive element after being collimated.
Optionally, in embodiments of the present invention, the imaging arrangement and the photosensitive structure are located in the opening.
Optionally, in embodiments of the present invention, the light shield layer is located at the reflector plate away from the liquid crystal display panel
Except plane where side.
Optionally, in embodiments of the present invention, the light shield layer is multiplexed with reflecting layer.
Optionally, in embodiments of the present invention, described in the light shield layer is covered in the orthographic projection of the liquid crystal display panel
It is open in the orthographic projection of the liquid crystal display panel.
Optionally, in embodiments of the present invention, the liquid crystal display device further include: lines identification chip, the lines
Identification chip is used to show the stage in the image of lines recognition cycle, obtains the lines and identify the first telecommunications that structure generates
Number；In the lines cognitive phase of the lines recognition cycle, the second electric signal that the lines identification structure generates is obtained；And it will
First electric signal carries out Denoising disposal as noise signal, to second electric signal, determines lines image information；
First electric signal by the lines identification the received backlight module of structure directly issue pass through opened
The light of mouth generates；
Second electric signal is described by passing through of directly issuing of the lines identification received backlight module of structure
The light of opening and the light that the opening is passed through after main body reflection generate.
Correspondingly, the embodiment of the invention also provides a kind of knowledges of the lines of liquid crystal display device provided in an embodiment of the present invention
Other method, comprising: multiple lines recognition cycles；The lines recognition cycle includes: that image shows stage and lines cognitive phase；
The stage is shown in described image, obtains the first electric signal that the lines identification structure generates；
In the lines cognitive phase, the second electric signal that the lines identification structure generates is obtained；
Using first electric signal as noise signal, Denoising disposal is carried out to second electric signal, determines lines
Image information.
Optionally, in embodiments of the present invention, the stage is shown in described image, obtain that each photosensitive element generates the
One electric signal；Wherein, first electric signal passes through institute by what the received backlight module of the photosensitive element directly issued
Light after stating image-forming component collimation generates；
In the lines cognitive phase of the lines recognition cycle, the second electric signal that each photosensitive element generates is obtained；
Wherein, second electric signal passes through the image-forming component by what the received backlight module of the photosensitive element directly issued
Light after collimation and the light after image-forming component collimation is passed through after main body reflection generated；
Using first electric signal as noise signal, according to corresponding first electric signal pair of each photosensitive element
Corresponding second electric signal of each photosensitive element carries out Denoising disposal, determines lines image information.
Correspondingly, the embodiment of the invention also provides a kind of electronic equipment, including liquid crystal provided in an embodiment of the present invention
Showing device.
The present invention has the beneficial effect that:
Liquid crystal display device, lines recognition methods and electronic equipment provided in an embodiment of the present invention, in liquid crystal display device
Viewing area lines identification region is set, by setting region of the reflector plate in backlight module in corresponding lines identification region
Opening is set, and the lines identification structure of the corresponding opening is set, the light that backlight module can be made to issue is by liquid crystal display panel
Afterwards, after then reflecting via the textured main body of tool, lines identification structure can be incident on by backlight module and across the opening
In, to be received by lines identification structure, and then liquid crystal display device can be made to realize lines identification function.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of liquid crystal display device provided in an embodiment of the present invention；
Fig. 2 is the second structural representation of liquid crystal display device provided in an embodiment of the present invention；
Fig. 3 is the flow chart of lines recognition methods provided in an embodiment of the present invention.
Specific embodiment
In order to make the purpose of the present invention, the technical scheme and advantages are more clear, with reference to the accompanying drawing, to the embodiment of the present invention
The specific embodiment of the liquid crystal display device of offer, lines recognition methods and electronic equipment is described in detail.It should manage
Solution, preferred embodiment disclosed below is only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.And it is not rushing
In the case where prominent, the feature in embodiment and embodiment in the present invention be can be combined with each other.It should be noted that each in attached drawing
Layer film thickness and shape do not reflect actual proportions, and purpose is schematically illustrate the content of present invention.And it is identical from beginning to end or
Similar label indicates same or similar element or element with the same or similar functions.
A kind of liquid crystal display device provided in an embodiment of the present invention, as shown in Figure 1, comprising: backlight module 100 and be located at back
The liquid crystal display panel 200 of 100 light emission side of optical mode group.The viewing area AA of liquid crystal display device 200 has lines identification region BB；
Wherein, the reflector plate 110 in backlight module 100 has open C C in the region of corresponding lines identification region BB.Liquid crystal display dress
Set can also include: corresponding open C C setting lines identification structure 300；Wherein, lines identification structure 300 is for receiving back
The light across open C C that optical mode group 100 directly issues, and receive to be had after textured main body 400 reflects and pass through open C C
Light L1.
Lines cog region is arranged in the viewing area of liquid crystal display device in liquid crystal display device provided in an embodiment of the present invention
Domain by making region setting opening of the reflector plate in backlight module in corresponding lines identification region, and is arranged corresponding this and opens
The lines of mouth identifies structure, can make the light of backlight module sending after liquid crystal display panel, then via the textured master of tool
After body reflection, it can be incident in lines identification structure by backlight module and across the opening, to identify structure by lines
It receives, and then liquid crystal display device can be made to realize lines identification function.
In the specific implementation, in embodiments of the present invention, can by by the region of 110 corresponding opening CC of reflector plate to cut
The mode borehole that cuts or by forming it into hollowed out area, to be used for transmitted light.In practical applications, reflector plate may include
Plate base and the reflecting layer on reflection plate base are reflected, it in this way can also be by making reflecting layer in the region of corresponding opening CC
It is avoided, so that the region of corresponding opening CC is formed as transparent region, to be used for transmitted light.
In the specific implementation, in embodiments of the present invention, as shown in Figure 1, lines identifies structure in liquid crystal display panel 200
Orthographic projection and open C C liquid crystal display panel 200 orthographic projection have overlapping region.It is possible to further identify lines
Structure covers open C C in the orthographic projection of liquid crystal display panel 200 in the orthographic projection of liquid crystal display panel 200.
Since fingerprint is that human body is inherent and unique and can be with other people phase region another characteristics, it is by finger tip skin table
A series of valley and a ridges composition on face, the composition details of these valley and a ridges generally include the bifurcated of ridge, the end of ridge, arch, account
The details such as the arch of levelling, left-handed, dextrorotation, spiral or bispin, determine the unique trait of fingerprint, therefore, implement in the present invention
In example, finger can be set by main body.It is illustrated for setting finger for main body below.
In the specific implementation, backlight module can be side entering type, in embodiments of the present invention, as shown in Fig. 2, backlight mould
Group 100 can also include: light guide plate 120 between reflector plate 110 and liquid crystal display panel 200, be located at light guide plate 120 with
Prismatic lens 130 between liquid crystal display panel 200, and it is located at the light source in 120 side of light guide plate (left side as shown in Figure 2)
140.General prismatic lens 130 and light guide plate 120 can with light transmission, therefore, when finger touches liquid crystal display panel 200,
The light that not only there is the light being incident in lines identification structure 300 across open C C finger to reflect, also has backlight module 100 straight
Pick out the light penetrated.Therefore in order to avoid backlight module 100 interferes the fingerprint lines identification of finger, in the specific implementation,
In embodiments of the present invention, liquid crystal display device can also include: lines identification chip.The lines identification chip can be used for
The image of lines recognition cycle shows the stage, obtains the first electric signal that lines identification structure generates.In lines recognition cycle
Lines cognitive phase obtains the second electric signal that lines identification structure generates；And using the first electric signal as noise signal, to
Two electric signals carry out Denoising disposal, determine lines image information.Wherein, the first electric signal identifies the received back of structure by lines
The light for passing through opening that optical mode group directly issues generates.Second electric signal is directly sent out by the lines identification received backlight module of structure
The light for passing through the light being open and passing through opening after being reflected by main body out generates.Further, in order to improve the integrated of chip
Degree, in the specific implementation, lines identification chip can be also used for showing stage and lines cognitive phase in image respectively, drive liquid
LCD panel carries out display image.It can not have to worry that display interferes fingerprint recognition in this way.In the specific implementation, line
Road identification chip can be the form of embodiment combining software and hardware aspects.
Since in the image display stage, liquid crystal display device is for showing picture, and backlight module can go out light, so that line
Road identification structure 300 can receive light that is that backlight module 100 directly issues and passing through open C C, then lines identifies structure
300 light can directly be issued according to backlight module 100 and across open C C generate the first electric signal.In this way by obtaining the
One electric signal obtains so as to obtaining directly issuing to backlight module 100 and pass through the relevant information of the light of open C C
The information of noise signal.In lines cognitive phase, due to after needing finger to be reflected the light of backlight module 100 to pass through
Opening be incident on lines identification structure 300 on, at this time backlight module 100 equally also shine, therefore lines identification structure 300 this
When the light that receives include that backlight module 100 directly issues and the light across open C C and pass through opening after being reflected by finger
The light of CC.Then lines identification structure 300 can generate the second electric signal according to the light in both different paths.Pass through acquisition in this way
Second electric signal, so as to obtain light directly issue with backlight module 100 and across open C C and reflected by finger
The relevant information of light of open C C is passed through afterwards.Therefore, using the first electric signal as noise signal, the second electric signal is denoised
Sonication so as to obtain the fingerprint lines image information of finger, and then obtains the fingerprint of finger.
In the specific implementation, in embodiments of the present invention, as shown in Fig. 2, lines identification structure 300 may include: successively
Deviate from imaging arrangement 310, photosensitive structure 320 and the light shield layer 330 of 200 side of liquid crystal display panel positioned at backlight module 100.
In the specific implementation, photosensitive structure 320 includes multiple photosensitive elements 321.The photosensitive element 321 can receive across opening
Light, to generate electric signal according to the light received.Further, photosensitive element may include: photodiode and with the light
The switching transistor of electric diode electrical connection, the switching transistor are used to that lines to be identified core under the control of detection control signal
Piece and photodiode conducting, so that lines identification chip can detecte the electric signal that each photosensitive element generates.General photoelectricity two
Pole pipe can produce photoelectric current when being illuminated by the light, to flow through its galvanoluminescence variation.In embodiments of the present invention, telecommunications
It number can be current signal.
In the specific implementation, in embodiments of the present invention, the light that imaging arrangement can be used for passing through opening is collimated
After be incident on photosensitive element.Further, imaging arrangement may include one group of lens, so as to pass through the light of opening into
To be incident on photosensitive element after row collimation.
In the specific implementation, in embodiments of the present invention, the influence in order to avoid external environmental light to photosensitive element, can be with
Light shield layer is set to cover each photosensitive element in the orthographic projection of liquid crystal display panel in the orthographic projection of liquid crystal display panel.
In the specific implementation, open C C be by the region of 110 corresponding opening CC of reflector plate in a manner of cutting borehole
Or by forming it into hollowed out area, in embodiments of the present invention, referring to figs. 1 and 2, imaging arrangement 310 and photosensitive knot
Structure 320 is respectively positioned in open C C.For example, the photosensitive element 321 in imaging arrangement 310 and photosensitive structure 320 is embedded into opening
In CC.
In the specific implementation, in embodiments of the present invention, referring to figs. 1 and 2, light shield layer 320 can be located at anti-
Piece 110 is penetrated except the plane S1 where 200 side of liquid crystal display panel.I.e. light shield layer 320 is not embedded into open C C, and
It is to be arranged on the outside of open C C.
It is possible to further which light shield layer is multiplexed with reflecting layer, to reduce the thickness of liquid crystal display device.Generally, backlight
It is that mould group directly generates and across open C C light may not be absorbed completely by photosensitive element, therefore in order to by remaining not by
The light reflection that photosensitive element absorbs, in embodiments of the present invention, referring to figs. 1 and 2, can make light shield layer 330 in liquid crystal
Orthographic projection of the orthographic projection covering open C C of display panel 200 in liquid crystal display panel 200.
Based on the same inventive concept, the embodiment of the invention also provides a kind of liquid crystal displays provided in an embodiment of the present invention to fill
The lines recognition methods set may include: multiple lines recognition cycles；Lines recognition cycle may include: that image shows the stage
With lines cognitive phase；
The stage is shown in image, obtains the first electric signal that lines identification structure generates；
In lines cognitive phase, the second electric signal that lines identification structure generates is obtained；
Using the first electric signal as noise signal, Denoising disposal is carried out to the second electric signal, determines lines image information.
In the specific implementation, lines recognition cycle can be that an at least frame shows the time.Specifically, lines recognition cycle can
Think that a frame shows the time, preceding 1/2 frame can be shown to the time is set as image and shows the stage in this way, when 1/2 frame is shown by after
Between be set as lines cognitive phase.Alternatively, lines recognition cycle may be that five frames show the time, this five frame can be shown in this way
Show that the frame in the time shows that the time is set as image and shows the stage, another frame shows that the time is set as lines cognitive phase.When
So, requirement of the different liquid crystal display devices to lines recognition cycle is different, therefore in practical applications, and lines recognition cycle can be with
Determination is designed according to actual application environment, is not limited thereto.
Below with reference to liquid crystal display device shown in Fig. 2, to above-mentioned lines recognition methods provided in an embodiment of the present invention into
Row explanation.Wherein, by taking lines recognition cycle can show the time for a frame as an example.Image shows that stage corresponding preceding 1/2 frame is shown
Time, 1/2 frame shows the time after lines cognitive phase is corresponding.
As shown in figure 3, lines recognition methods provided in an embodiment of the present invention may include steps of:
S301, the stage is shown in image, obtain the first electric signal that each photosensitive element generates；Wherein, the first electric signal by
What the received backlight module of photosensitive element directly issued passes through the light generation after image-forming component collimation.
Specifically, the stage is shown in image, driving liquid crystal display device carries out picture and shows work.The time is shown in a frame
In first 1/4 frame show in the time that the light that transmits on light guide plate 120 is by being incident on each photosensitive member after imaging system collimation
On the photodiode of part 321, photodiode is made to generate photoelectric current.And each switching transistor is controlled by detection control signal
Conducting, is supplied to lines detection chip for the photoelectric current that each photodiode generates, so as to so that lines detection chip obtains
Getting the first current signal I1_m that each photodiode generates, (1≤m≤M, m are integer, and M represents the total of photodiode
Number).Later, show that second 1/4 frame in the time was shown in the time in a frame, detection control signal controls each switching transistor
It disconnects.
S302, the lines cognitive phase in lines recognition cycle obtain the second electric signal that each photosensitive element generates；Its
In, the second electric signal by the received backlight module of photosensitive element directly issue pass through image-forming component collimate after light and led
Light after passing through image-forming component collimation after body reflection generates.
Specifically, it in lines cognitive phase, drives liquid crystal display device to carry out picture and shows work.The time is shown in a frame
In third 1/4 frame show in the time that the light transmitted on light guide plate 120 is by being incident on each photosensitive member after imaging system collimation
On the photodiode of part 321, and light of the backlight module 100 by liquid crystal display panel outgoing is passed through into again by finger reflection
As being also incident on the photodiode of each photosensitive element 321 after system collimation, the light in both different paths makes two pole of photoelectricity
Pipe generates photoelectric current.Each switching transistor conducting, the photoelectricity that each photodiode is generated are controlled by detection control signal
Stream is supplied to lines detection chip, so as to so that lines detection chip gets the second electric current letter that each photodiode generates
Number I2_m.Later, show that the 4th 1/4 frame in the time was shown in the time in a frame, it is brilliant that detection control signal controls each switch
Body pipe disconnects.
S303, using the first electric signal as noise signal, according to corresponding first electric signal of each photosensitive element to each photosensitive
Corresponding second electric signal of element carries out Denoising disposal, determines lines image information.
Specifically, the corresponding first current signal I1_m of each photodiode is converted into first voltage signal V1_m, it will
Second current signal I2_m is converted to second voltage signal V2_m.For each photodiode, by the photodiode pair
The first voltage signal V1_m answered is denoised as noise signal, second voltage signal V2_m corresponding to the photodiode
Sonication, to obtain the voltage signal V2_m-V1_m after removal V1_m.To according to the corresponding voltage signal of each photodiode
V2_m-V1_m determines the lines image information of finger print.
Based on the same inventive concept, the embodiment of the invention also provides a kind of electronic equipment, including the embodiment of the present invention to mention
The above-mentioned liquid crystal display device supplied.The implementation of the electronic equipment may refer to the embodiment of above-mentioned liquid crystal display device, repetition
Place repeats no more.
In the specific implementation, electronic equipment can be with are as follows: mobile phone, tablet computer, Digital Frame, navigator etc. be any have it is aobvious
Show the products or components of function.Other essential component parts for the electronic equipment are the ordinary skill of this field
What personnel should be understood that, this will not be repeated here, also should not be taken as limiting the invention.
Liquid crystal display device, lines recognition methods and electronic equipment provided in an embodiment of the present invention, in liquid crystal display device
Viewing area lines identification region is set, by setting region of the reflector plate in backlight module in corresponding lines identification region
Opening is set, and the lines identification structure of the corresponding opening is set, the light that backlight module can be made to issue is by liquid crystal display panel
Afterwards, after then reflecting via the textured main body of tool, lines identification structure can be incident on by backlight module and across the opening
In, to be received by lines identification structure, and then liquid crystal display device can be made to realize lines identification function.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of liquid crystal display device, comprising: backlight module and the liquid crystal display panel positioned at the backlight module light emission side,
It is characterized in that, the viewing area of the liquid crystal display device has lines identification region；
Reflector plate in the backlight module has opening in the region of the correspondence lines identification region；
The liquid crystal display device further include: the lines of the corresponding opening setting identifies structure；
The lines identification structure is for receiving the light across the opening that the backlight module directly issues, and reception quilt
Has the light that the opening is passed through after textured main body reflects.
2. liquid crystal display device as described in claim 1, which is characterized in that the lines identification structure includes: to be sequentially located at
The backlight module deviates from imaging arrangement, photosensitive structure and the light shield layer of the liquid crystal display panel side；Wherein, the sense
Photo structure includes multiple photosensitive elements；The light shield layer covers each photosensitive element in the orthographic projection of the liquid crystal display panel
In the orthographic projection of the liquid crystal display panel；
The light that the imaging arrangement is used to pass through the opening is incident on the photosensitive element after being collimated.
3. liquid crystal display device as claimed in claim 2, which is characterized in that the imaging arrangement and the photosensitive structure are located at
In the opening.
4. liquid crystal display device as claimed in claim 2, which is characterized in that the light shield layer is located at the reflector plate away from institute
It states except the plane where liquid crystal display panel side.
5. such as the described in any item liquid crystal display devices of claim 2-4, which is characterized in that the light shield layer is multiplexed with reflection
Layer.
6. liquid crystal display device as claimed in claim 5, which is characterized in that the light shield layer is in the liquid crystal display panel
Orthographic projection covers the opening in the orthographic projection of the liquid crystal display panel.
7. liquid crystal display device according to any one of claims 1-4, which is characterized in that the liquid crystal display device also wraps
It includes: lines identification chip,
The lines identification chip is used to show the stage in the image of lines recognition cycle, obtains the lines identification structure and generate
The first electric signal；In the lines cognitive phase of the lines recognition cycle, the lines identification structure generates second is obtained
Electric signal；And using first electric signal as noise signal, Denoising disposal is carried out to second electric signal, determines lines
Image information；
First electric signal is open by passing through of directly issuing of the lines identification structure received backlight module
Light generates；
Second electric signal passes through the opening by what the lines identification received backlight module of structure directly issued
Light and by the main body reflection after pass through the opening light generate.
8. a kind of lines recognition methods of such as described in any item liquid crystal display devices of claim 1-7, which is characterized in that packet
It includes: multiple lines recognition cycles；The lines recognition cycle includes: that image shows stage and lines cognitive phase；
The stage is shown in described image, obtains the first electric signal that the lines identification structure generates；
In the lines cognitive phase, the second electric signal that the lines identification structure generates is obtained；
Using first electric signal as noise signal, Denoising disposal is carried out to second electric signal, determines lines image
Information.
9. lines recognition methods as claimed in claim 8, which is characterized in that
The stage is shown in described image, obtains the first electric signal that each photosensitive element generates；Wherein, first electric signal
It is generated by the light after the image-forming component collimates that passes through that the received backlight module of the photosensitive element directly issues；
In the lines cognitive phase of the lines recognition cycle, the second electric signal that each photosensitive element generates is obtained；Wherein,
Second electric signal is collimated by the image-forming component that passes through that the received backlight module of the photosensitive element directly issues
Rear light and the light after image-forming component collimation is passed through after main body reflection generated；
Using first electric signal as noise signal, according to corresponding first electric signal of each photosensitive element to each institute
It states corresponding second electric signal of photosensitive element and carries out Denoising disposal, determine lines image information.
10. a kind of electronic equipment, which is characterized in that including such as described in any item liquid crystal display devices of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910008508.9A CN109614958B (en) | 2019-01-04 | 2019-01-04 | Liquid crystal display device, line identification method and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910008508.9A CN109614958B (en) | 2019-01-04 | 2019-01-04 | Liquid crystal display device, line identification method and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109614958A true CN109614958A (en) | 2019-04-12 |
| CN109614958B CN109614958B (en) | 2020-11-17 |
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