CN110232299A - Liquid crystal display die set - Google Patents
Liquid crystal display die set Download PDFInfo
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- CN110232299A CN110232299A CN201810179423.2A CN201810179423A CN110232299A CN 110232299 A CN110232299 A CN 110232299A CN 201810179423 A CN201810179423 A CN 201810179423A CN 110232299 A CN110232299 A CN 110232299A
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- liquid crystal
- crystal display
- light emitting
- emitting structure
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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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
A kind of liquid crystal display die set, comprising: monochromatic light emitting structure；Liquid crystal display panel, the liquid crystal display panel are located on the monochromatic light emitting structure, and light caused by the monochrome light emitting structure transmits the liquid crystal display panel and forms display light；The part display light forms the sensing light for carrying finger print information in sensing face；Imaging sensor, described image sensor are located at the side of the monochromatic light emitting structure far from the sensing face, and the sensing light of monochrome light emitting structure described in described image sensor acquisition of transmission is to obtain fingerprint image.Using monochromatic light emitting structure as the backlight of liquid crystal display panel, also as the light source of fingerprint imaging；Since the monochromatic light emitting structure being capable of light transmission, and formation process difficulty is lower, therefore the process yields of the liquid crystal display die set can be effectively improved, can effectively control the manufacturing cost of the liquid crystal display die set, function is integrated and cost control to achieve the purpose that take into account.
Description
Technical field
The present invention relates to optical finger print identification field more particularly to a kind of liquid crystal display die sets.
Background technique
Fingerprint imaging identification technology is the fingerprint image that human body is collected by fingerprint sensor, then and in system
Existing fingerprint imaging information is compared, and whether carrying out correct judgment, and then realizes the technology of identification.The side used due to it
Just property and the uniqueness of somatic fingerprint, fingerprint identification technology have been widely used in every field.Such as public security bureau, customs
Etc. field of safety check, consumer product areas such as the access control system and PC of building and mobile phone etc..
The implementation of fingerprint imaging identification technology has the multiple technologies such as optical imagery, capacitance imaging, ultrasonic imaging.Relatively
For, optical finger print imaging technique, imaging effect is relatively preferable, and equipment cost is relatively low.
On the other hand, increase development trend growth-promoting integrated fingerprint in display panel to mobile terminal display area to be imaged
The demand of function, to save the positive area of mobile terminal.In the prior art, have by optical finger print imaging technique and display
The technology that panel combines, but often there is a problem of that process yields are too low, manufacturing cost is excessively high.
Summary of the invention
Problems solved by the invention is to provide a kind of liquid crystal display die set, realizes optical finger print imaging technique and display panel
Technology integrates, and improves its process yields, reduces manufacturing cost.
To solve the above problems, the present invention provides a kind of liquid crystal display die set, comprising:
Monochromatic light emitting structure；Liquid crystal display panel, the liquid crystal display panel are located on the monochromatic light emitting structure, described monochromatic luminous
Light caused by structure transmits the liquid crystal display panel and forms display light；The part display light is formed in sensing face to be carried
The sensing light of finger print information；Imaging sensor, described image sensor are located at the monochromatic light emitting structure far from the sensing face
Side, the sensing light of monochrome light emitting structure described in described image sensor acquisition of transmission is to obtain fingerprint image.
Optionally, light color produced by the monochromatic light emitting structure is white light.
Optionally, the monochromatic light emitting structure includes multiple monochromatic luminescence units, and the monochrome luminescence unit is in parallel institute
It states in the plane of sensing face and is uniformly distributed.
Optionally, the multiple monochromatic luminescence unit is arranged in array, and constitutes monochromatic light emitting array；The monochrome light-emitting junction
Structure further include: multiple connecting lines, the connecting line extend along the line direction or column direction of the monochromatic light emitting array；Positioned at colleague
Or the monochromatic luminescence unit of same column is corresponding with same connecting line connected.
Optionally, the multiple monochromatic luminescence unit is arranged in array, and constitutes monochromatic light emitting array；Positioned at colleague or together
The monochromatic luminescence unit of column generates light under the control of same luminous signal.
Optionally, the monochromatic luminescence unit has transparent area, light transmission of the sensing light through the monochromatic luminescence unit
Area's transmission monochromatic light emitting structure.
Optionally, the liquid crystal display panel includes multiple display units；One display unit and a monochromatic hair
Light unit correspondence or multiple display units are corresponding with a monochromatic luminescence unit.
Optionally, the display unit has more than one color area；The monochrome luminescence unit is in the liquid crystal surface
The projected area of plate surface is greater than the area in a color area.
Optionally, the monochromatic luminescence unit includes one or more luminescent layers.
Optionally, the monochromatic luminescence unit includes multiple luminescent layers；The multiple luminescent layer is along the vertical liquid crystal surface
The direction of plate surface stacks.
Optionally, the monochromatic light emitting structure is organic light-emitting structure.
Optionally, the technique for forming the monochromatic light emitting structure includes: vapor deposition or imprint process.
Optionally, the monochromatic light emitting structure is active matrix driving light emitting structure.
Optionally, the monochromatic light emitting structure is the luminous monochromatic light emitting structure in top.
Optionally, further includes: collimating structure, the collimating structure are located at described image sensor and the monochromatic light-emitting junction
Between structure.
Compared with prior art, technical solution of the present invention has the advantage that
The monochrome light emitting structure serves not only as the backlight of liquid crystal display panel, also as the light source of fingerprint imaging；And institute
It states monochromatic translucent construction and is transmissive to light, the acquisition of fingerprint image will not be interfered；In addition, the formation of the monochrome translucent construction
Technology difficulty is lower, process yields with higher, lower manufacturing cost, therefore the use of the monochromatic translucent construction can
The process yields of the liquid crystal display die set are effectively improved, the manufacturing cost of the liquid crystal display die set can be effectively controlled, from
And achieve the purpose that take into account that function is integrated and cost control.
In optinal plan of the present invention, the liquid crystal display panel includes multiple display units, a display unit and one
The monochrome luminescence unit correspondence or multiple display units are corresponding with a monochromatic luminescence unit；Therefore described
The area of monochromatic luminescence unit is larger, and the resolution ratio of the monochrome light emitting structure is lower；Reduce point of the monochromatic light emitting structure
Resolution increases the area of the monochromatic luminescence unit, can be in the premise for the display function for not influencing the liquid crystal display die set
Under, the technology difficulty of the monochromatic light emitting structure is reduced, so as to effectively improve the process yields of the monochromatic light emitting structure,
Manufacturing cost is reduced, is advantageously implemented that function is integrated and cost control takes into account.
In optinal plan of the present invention, the monochrome luminescence unit includes multiple luminescent layers；The multiple luminescent layer is along vertical
The direction vertical stacking of the liquid crystal panel surface；Since the multiple luminescent layer is along the direction of the vertical liquid crystal panel surface
Vertical stacking, therefore the multiple luminous layer formation process is larger to the permissible value of stacking errors between different luminescent layers, is formed
The technology difficulty of the multiple luminescent layer is lower, so as to which the technology difficulty of the monochromatic light emitting structure is effectively reduced, favorably
In the process yields for improving the liquid crystal display die set, the manufacturing cost of the liquid crystal display die set is advantageously reduced.
In optinal plan of the present invention, the monochrome light emitting structure is organic light-emitting structure, can be by being deposited or imprinting
Technique forms the monochromatic light emitting structure, so as to which the formation process difficulty of the monochromatic light emitting structure is effectively reduced, favorably
In the process yields for improving the liquid crystal display die set, the manufacturing cost of the liquid crystal display die set is advantageously reduced.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of one embodiment of liquid crystal display die set of the present invention；
Fig. 2 be in liquid crystal display die set embodiment shown in Fig. 1 monochromatic light emitting structure along the overlooking structure diagram in the direction A；
Fig. 3 is the enlarged structure schematic diagram of single monochrome luminescence unit in liquid crystal display die set embodiment shown in Fig. 2；
Fig. 4 is in liquid crystal display die set shown in Fig. 3 along the schematic diagram of the section structure of A1A2 line；
Fig. 5 is overlooking structure diagram of the middle part liquid separation crystal panel of liquid crystal display die set embodiment shown in Fig. 1 along the direction A；
Fig. 6 is the schematic diagram of the section structure of another embodiment of liquid crystal display die set of the present invention.
Specific embodiment
It can be seen from background technology that often there is manufacture in the display panel for being integrated with optical finger print imaging technique in the prior art
The problem that cost is excessively high, process yields are too low.Its manufacturing cost height, the low problem of process yields are analyzed now in conjunction with a kind of display panel
The reason of:
The principle of optical finger print imaging technique is: after finger pressing is in sensing face, light caused by light source is projected to
In the sensing face, reflection and refraction occur in sensing face, forms the sensing light for carrying finger print information；By imaging sensor
The sensing light is acquired, fingerprint image is obtained.
After integrated with display panel, in order to avoid influencing the display function of display panel, the image of acquisition sensing light is passed
Sensor is often hidden in below display panel, i.e. display panel senses light between sensing face and imaging sensor
Need transmissive display panel that can be transmitted through in described image sensor, so display panel is needed with translucency.
In existing display panel, only active matrix organic light-emitting diode (Active-matrix Organic
Light Emitting Diode, AMOLED) display panel can be realized light transmission, therefore mould can only be imaged in optical finger print
Group is realized integrated with AMOLED display panel.AMOLED display panel fancy price causes to be integrated with optical finger print imaging skill
There is the problem that manufacturing cost is excessively high, process yields are too low in the display module of art.
And in cheap liquid crystal display panel, since liquid crystal display panel is passive luminous, liquid crystal display panel tool
There is backing structure, the backing structure of liquid crystal display panel is often lighttight, therefore limits optical finger print imaging technique and liquid crystal
Panel it is integrated, limit the reduction of the display module manufacturing cost for being integrated with optical finger print imaging technique, process yields mention
It is high.
To solve the technical problem, the present invention provides a kind of liquid crystal display die set, using monochromatic light emitting structure as liquid crystal
The backlight of panel, also as the light source of fingerprint imaging；Since the formation process difficulty of the monochromatic light emitting structure is lower,
The process yields of the liquid crystal display die set can be effectively improved, can effectively control the manufacture of the liquid crystal display die set at
This, to achieve the purpose that take into account, function is integrated and cost control.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
Referring to figs. 1 to Fig. 5, the structural schematic diagram of one embodiment of liquid crystal display die set of the present invention is shown.Wherein, Fig. 1 is
The schematic diagram of the section structure of the liquid crystal display die set embodiment.
As shown in Figure 1, the liquid crystal display die set includes: monochromatic light emitting structure 110；Liquid crystal display panel 120, the liquid crystal surface
Plate 120 is located on the monochromatic light emitting structure 110, and light caused by the monochrome light emitting structure 110 transmits the liquid crystal surface
Plate 120 forms display light；The part display light forms the sensing light for carrying finger print information in sensing face 130；Image passes
Sensor 140, described image sensor 140 is located at the side of the monochromatic light emitting structure 110 far from the sensing face 130, described
The sensing light of monochrome light emitting structure 110 described in 140 acquisition of transmission of imaging sensor is to obtain fingerprint image.
The monochrome light emitting structure 110 serves not only as the backlight of liquid crystal display panel 120, also as the light source of fingerprint imaging；
And the monochromatic translucent construction 110 is transmissive to light, will not interfere the acquisition of fingerprint image；In addition, the monochrome light transmission
The formation process difficulty of structure 110 is lower, process yields with higher, lower manufacturing cost, therefore the monochromatic light transmission
The use of structure 110 can effectively improve the process yields of the liquid crystal display die set, can effectively control the liquid crystal display
The manufacturing cost of mould group, to achieve the purpose that take into account, function is integrated and cost control.
The light that the monochrome light emitting structure 110 generates is used to perform image display and fingerprint image acquisition.
In the present embodiment, light caused by the monochrome light emitting structure 110 is white, i.e., the described monochromatic light emitting structure
110 be white-light emitting structure.Therefore light caused by the monochromatic light emitting structure 110 transmits the liquid crystal display panel 120
It is capable of forming colored display light later, to realize that image is shown.In other embodiments of the invention, the monochrome light emitting structure
Light caused by 110 may be the monochromatic light of other colors such as blue and green light.
In conjunction with reference Fig. 2, monochromatic light emitting structure bowing along the direction A in liquid crystal display die set embodiment shown in Fig. 1 is shown
Depending on structural schematic diagram.
As shown in Fig. 2, the monochrome light emitting structure 110 includes multiple monochromatic luminescence units 111, the monochrome luminescence unit
111 are uniformly distributed in the plane of the parallel sensing face 130.Each monochromatic luminescence unit 111 is independent to shine, described more
A monochrome luminescence unit 111 is evenly distributed, and can be effectively improved in the plane of the parallel sensing face 130, the monochrome
The uniformity of light light distribution produced by light emitting structure 110 is conducive to improve image displaying quality, is conducive to high quality fingerprint
The acquisition of image.
In the present embodiment, the multiple monochrome luminescence unit 111 is arranged in array, and constitutes monochromatic light emitting array 112；It is described
Monochromatic light emitting structure 110 further include: multiple connecting lines 113, the multiple connecting line 113 is along the monochromatic light emitting array 112
Line direction extends；The monochromatic luminescence unit 111 positioned at colleague is corresponding with same connecting line 113 connected.
The connecting line 113 is to transmit luminous signal, control of the monochrome luminescence unit 111 in the luminous signal
Lower generation light.The monochromatic connected way corresponding with same connecting line 111 of luminescence unit 111 for making colleague, can be effective
The layouts for simplifying the monochromatic light emitting structure, can effectively reduce the interference in signal transmission, advantageously form technique hardly possible
The reduction of degree is conducive to the improvement of manufacturing yield and device stability.
In the present embodiment, positioned at colleague or monochromatic luminescence unit 111 generate light under the control of same luminous signal.
The light as caused by the monochromatic luminescence unit 111 is used to perform image display and fingerprint image acquisition, makes multiple
Monochromatic luminescence unit 111 is controlled by same luminous signal, can effectively simplify the control method of the monochromatic light emitting array, favorably
In simplified circuit structure, reduce technology difficulty and manufacturing cost；And multiple monochromatic hairs are controlled by same luminous signal
The way of light unit 111 can also improve the equalization of intensity of light produced by the monochromatic light emitting array 112 as far as possible,
Be conducive to the raising of image displaying quality and fingerprint image quality.
It should be noted that the connecting line 113 extends along monochromatic 112 line direction of light emitting array in the present embodiment；
The monochromatic luminescence unit 111 positioned at colleague is corresponding with same connecting line 113 connected, and this connection type is only an example.
In other embodiments of the invention, the connecting line can also extend along the monochromatic light emitting array column direction；Then positioned at same column
The monochrome luminescence unit is corresponding with same connecting line to be connected.
In conjunction with reference Fig. 3, the amplification knot of single monochrome luminescence unit in liquid crystal display die set embodiment shown in Fig. 2 is shown
Structure schematic diagram.
The monochrome luminescence unit 111 has a transparent area 114, thus light can be transmitted through the transparent area 114 it is described
Monochromatic light emitting structure 110, to realize fingerprint image acquisition.
The monochrome luminescence unit 111 further includes alternatively non-transparent district 115, and the alternatively non-transparent district 115 is to be provided with photophore
Part and control device, that is to say, that light caused by the monochrome luminescence unit 111 is emitted from the alternatively non-transparent district 115.It will
Luminescent device and control device are set to alternatively non-transparent district 115, can be effectively reduced influence of the light to semiconductor devices, are conducive to
Improve the performance of the monochromatic light emitting structure 110.
It should be noted that the shape and position of the transparent area 114 and the alternatively non-transparent district 115 are only in the present embodiment
For an example.In other embodiments of the invention, the shape and position of the transparent area 114 and the alternatively non-transparent district 115 can be with
For other forms, which is not limited by the present invention.
In conjunction with reference Fig. 4, show in liquid crystal display die set shown in Fig. 3 along the schematic diagram of the section structure of A1A2 line.
As shown in figure 4, the monochrome luminescence unit 111 includes multiple luminescent layers 116 in the present embodiment.The multiple hair
Photosphere 116 generates the light of different colours under the control of the luminous signal, mutually mixed by the light of a variety of different colours
It closes, to form white light.
In the present embodiment, the multiple luminescent layer 116 is stacked along the direction of the vertical sensing face 130.Due to the list
Multiple luminescent layers 116 in color luminescence unit 111 are vertical stacking, therefore in the plane of the parallel sensing face 130, described
The position deviation of multiple luminescent layers 116 will not influence the color and intensity of light produced by the monochromatic luminescence unit 111, described
Multiple 116 forming processes of luminescent layer are larger to the permissible value of stacking errors between different luminescent layers 116, form the multiple shine
The process window of layer is larger, so as to which the technology difficulty of the monochromatic light emitting structure is effectively reduced, is conducive to improve the liquid
The process yields of brilliant display module advantageously reduce the manufacturing cost of the liquid crystal display die set.
In the present embodiment, the monochrome light emitting structure 110 is organic light-emitting structure, i.e., in the described monochromatic luminescence unit 111
The multiple luminescent layer 116 material be organic material.So the technique for forming the monochromatic light emitting structure 110 includes: to steam
Plating or imprint process, that is to say, that it is described monochrome luminescence unit 111 in the multiple luminescent layer 116 by vapor deposition or
Imprint process sequentially forms.
The monochrome light emitting structure 110 is organic light-emitting structure, can be formed by vapor deposition or imprint process, so as to
The formation process difficulty of the monochromatic light emitting structure 110, the technique for being conducive to improve the liquid crystal display die set is enough effectively reduced
Yield advantageously reduces the manufacturing cost of the liquid crystal display die set.
In other embodiments of the invention, the material of the monochrome light emitting structure may be inorganic light-emitting structure, i.e., described
The material of the multiple luminescent layer in monochromatic luminescence unit may be inorganic material；The formation work of the monochrome light emitting structure
Skill can be other semiconductor formation process such as vapor deposition, sputtering, i.e., the multiple luminous in the described monochromatic luminescence unit
Layer can also be formed by other semiconductor technologies such as being vapor-deposited, sputtering.
So the monochrome luminescence unit 111 is to generate the organic luminescent device that light is white.Specifically, the list
Color luminescence unit 111 is white organic LED (Organic Light-Emitting Diode, OLED).
Therefore, as shown in figure 4, the monochrome luminescence unit 111 includes three luminescent layers 116 stacked gradually, respectively
First luminescent layer 116a, the second luminescent layer 116b and third luminescent layer 116c.The first luminescent layer 116a, described second shine
The layer 116b and third luminescent layer 116c generates feux rouges, green light and blue light respectively.The first luminescent layer 116a, described second
Light produced by the luminescent layer 116b and third luminescent layer 116c is mutually mixed to form white light.
In addition, the monochrome luminescence unit 111 further includes two electrode layers 117, described two electrode layers 117 are located at
Above and below the multiple luminescent layer 116, for realizing the connection of the multiple luminescent layer 116 and external circuit, to be powered
And control.
It should be noted that there are three the ways of luminescent layer 116 for monochrome luminescence unit 111 tool only in the present embodiment
For an example.In other embodiments of the invention, the monochrome luminescence unit is also possible to single luminous layer structure, double emitting layers knot
Structure, four luminous layer structures, stacked in series structure or micro-cavity structure luminescent device.
On the other hand, with continued reference to Fig. 3, in the present embodiment, the monochrome light emitting structure 110 is to have chance with to drive light-emitting junction
Structure, therefore the monochromatic luminescence unit 111 further includes the switching device 118 positioned at the multiple 116 side of luminescent layer, it is described to open
Conducting and truncation that device is electrically connected for realizing the multiple luminescent layer 116 with external circuit are closed, to control single institute
State whether monochromatic luminescence unit 111 generates light and generate the power of light.
The monochromatic light emitting structure 110 is set as having chance with and drives the way of light emitting structure, can be realized the monochromatic hair
The single control of light unit 111, and power consumption is low, refresh rate is high, can be effectively improved effect and quality that image is shown.
In addition, the monochrome light emitting structure 110 is the luminous monochromatic light emitting structure in top, i.e. 111 institute of the monochromatic luminescence unit
The light of generation is emitted along the direction that the multiple luminescent layer 116 stacks towards side.Specifically, in the present embodiment, the list
Light caused by color light emitting structure 110 is emitted towards the direction of the liquid crystal display panel, reduces the monochromatic light emitting structure as far as possible
Interference of the light produced by 110 to described image sensor to sensing light, to obtain the fingerprint image of high quality.
It continues to refer to figure 1, the liquid crystal display die set further includes liquid crystal display panel 120, and the liquid crystal display panel 120 is located at described
The side in monochromatic 110 beam projecting direction of light emitting structure, therefore light caused by the monochromatic light emitting structure 110 is in transmission institute
During stating liquid crystal display panel 120, the modulation of liquid crystal material in liquid crystal display panel 120 is received, to be formed aobvious to carry out image
The display light shown.
Fig. 5 is referred to specifically, combining, shows the middle part of liquid crystal display die set embodiment shown in Fig. 1 liquid separation crystal panel along the side A
To overlooking structure diagram.
The liquid crystal display panel 120 includes multiple display units 121.In the present embodiment, multiple display units 121 and one
A monochromatic luminescence unit 111 is corresponding, that is to say, that on 110 surface of the monochromatic light emitting structure, multiple display units
121 projection is substantially overlapped with the corresponding one monochromatic luminescence unit 111.Therefore the monochromatic luminescence unit 111
Area is larger, and the resolution ratio of the monochrome light emitting structure 110 is lower；The resolution ratio for reducing the monochromatic light emitting structure 110, increases
The area of the monochrome luminescence unit 111 can reduce under the premise of not influencing the display function of the liquid crystal display die set
The formation process difficulty of the monochrome light emitting structure 110, it is good so as to the technique that effectively improves the monochromatic light emitting structure 110
Rate reduces manufacturing cost, is advantageously implemented that function is integrated and cost control takes into account.
It continues to refer to figure 1, the sensing face 130 is for receiving to touch to carry out fingerprint image acquisition.
In the present embodiment, the liquid crystal display die set further include: protection panels 131, the protection panels 131 are located at described
Side of the liquid crystal display panel 120 far from the monochromatic light emitting structure 110.The protection panels 131 are backwards to the liquid crystal display panel 120
Surface is the sensing face 130.
When fingerprint image acquisition, finger is pressed in the sensing face 130；The liquid crystal display panel 120 is transmitted to be formed by
It shows in light projection to the sensing face 130, reflection and refraction, the institute that part reflects occurs in the sensing face 130
It states display light and is emitted from the sense side 130 along the direction backwards to the liquid crystal display panel 120, to realize that image is shown, part is sent out
The display light of raw reflection carries finger print information, forms sensing light, and the sensing light successively transmits the liquid crystal display panel 120
With monochromatic light emitting structure 110.
Described image sensor 140 is located at the side of the monochromatic light emitting structure 110 far from the sensing face 130；Transmission
The sensing light projection of the monochrome light emitting structure 110 to described image sensor 140, by the acquisition of described image sensor 140 from
And obtain fingerprint image.
Due to the monochromatic light emitting structure 110 can light transmission, the use of the monochrome light emitting structure 110, Bu Huiying
The propagation of the sensing light is rung, so as to make the liquid crystal display die set realize fingerprint image acquisition and image display function
It is integrated.
It should be noted that as shown in Figure 1, in the present embodiment, the liquid crystal display die set further include: collimating structure 150,
The collimating structure 150 is located between described image sensor 140 and the monochromatic light emitting structure 110.
The stray light that the collimating structure 150 can remove in the sensing light improves to reach inhibition noise jamming
The purpose of signal-to-noise ratio, and then the quality of obtained fingerprint image can be effectively improved.
With reference to Fig. 6, the schematic diagram of the section structure of another embodiment of liquid crystal display die set of the present invention is shown.
Details are not described herein by the present embodiment and the previous embodiment something in common present invention.The present embodiment and previous embodiment are not
It is with place, in the present embodiment, a display unit 221 is corresponding with a monochromatic luminescence unit 211, i.e., described
Multiple display units 221 and the multiple monochromatic luminescence unit 211 correspond.Therefore, a display unit 221 is in institute
The projection for stating monochromatic 210 surface of light emitting structure is substantially overlapped with corresponding monochromatic luminescence unit 211.
In addition, the display unit 221 has more than one color area 222；The monochrome luminescence unit 211 is described
The projected area on 220 surface of liquid crystal display panel is greater than the area in a color area 122.
Light caused by the monochrome light emitting structure 210 forms the aobvious of different colours after transmiting different colours area 222
Show that light, different colours show the cooperation of light to realize that image is shown.In the present embodiment, a display unit 221 has
Three color areas 222, respectively the first color area 222r, the second color area 222g and third color area 222b.
The monochrome luminescence unit 211 is larger in 220 surface projection of liquid crystal display panel, therefore the monochromatic luminescence unit
211 area is larger, and resolution ratio is lower, thus it is described monochrome luminescence unit 211 formation process difficulty it is lower, manufacturing yield compared with
Height, manufacturing cost are lower.
Although present disclosure is as above, present invention is not limited to this.Anyone 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 (15)
1. a kind of liquid crystal display die set characterized by comprising
Monochromatic light emitting structure；
Liquid crystal display panel, the liquid crystal display panel are located on the monochromatic light emitting structure, light caused by the monochrome light emitting structure
It transmits the liquid crystal display panel and forms display light；
The part display light forms the sensing light for carrying finger print information in sensing face；
Imaging sensor, described image sensor are located at the side of the monochromatic light emitting structure far from the sensing face, the figure
The sensing light of the monochrome light emitting structure as described in sensor acquisition of transmission is to obtain fingerprint image.
2. liquid crystal display die set as described in claim 1, which is characterized in that light color produced by the monochrome light emitting structure
For white light.
3. liquid crystal display die set as described in claim 1, which is characterized in that the monochrome light emitting structure includes multiple monochromatic hairs
Light unit, the monochrome luminescence unit are uniformly distributed in the plane of the parallel sensing face.
4. liquid crystal display die set as claimed in claim 3, which is characterized in that the multiple monochrome luminescence unit is arranged in array
Cloth constitutes monochromatic light emitting array；
The monochrome light emitting structure further include: multiple connecting lines, the connecting line along the monochromatic light emitting array line direction or
Column direction extends；
The monochromatic luminescence unit positioned at colleague or same column is corresponding with same connecting line connected.
5. liquid crystal display die set as claimed in claim 3, which is characterized in that the multiple monochrome luminescence unit is arranged in array
Cloth constitutes monochromatic light emitting array；
Monochromatic luminescence unit positioned at colleague or same column generates light under the control of same luminous signal.
6. liquid crystal display die set as claimed in claim 3, which is characterized in that the monochrome luminescence unit has transparent area, institute
State transparent area transmission of the sensing light through the monochromatic luminescence unit monochromatic light emitting structure.
7. liquid crystal display die set as claimed in claim 3, which is characterized in that the liquid crystal display panel includes multiple display units；
Described in one display unit display unit corresponding or multiple with a monochromatic luminescence unit and one
Monochromatic luminescence unit is corresponding.
8. liquid crystal display die set as claimed in claim 7, which is characterized in that the display unit has more than one color
Area；
The monochrome luminescence unit is greater than the area in a color area in the projected area of the liquid crystal panel surface.
9. liquid crystal display die set as claimed in claim 3, which is characterized in that the monochrome luminescence unit includes one or more
Luminescent layer.
10. liquid crystal display die set as claimed in claim 9, which is characterized in that the monochrome luminescence unit includes multiple shines
Layer；The multiple luminescent layer is stacked along the direction of the vertical liquid crystal panel surface.
11. liquid crystal display die set as described in claim 1, which is characterized in that the monochrome light emitting structure is organic light emission knot
Structure.
12. the liquid crystal display die set as described in claim 1 or 11, which is characterized in that form the work of the monochromatic light emitting structure
Skill includes: vapor deposition or imprint process.
13. liquid crystal display die set as described in claim 1, which is characterized in that the monochrome light emitting structure is active matrix driving hair
Photo structure.
14. the liquid crystal display die set as described in claim 1,11 or 13, which is characterized in that the monochrome light emitting structure is top hair
Light monochrome light emitting structure.
15. liquid crystal display die set as described in claim 1, which is characterized in that further include: collimating structure, the collimating structure
Between described image sensor and the monochromatic light emitting structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810179423.2A CN110232299A (en) | 2018-03-05 | 2018-03-05 | Liquid crystal display die set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810179423.2A CN110232299A (en) | 2018-03-05 | 2018-03-05 | Liquid crystal display die set |
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| Publication Number | Publication Date |
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| CN110232299A true CN110232299A (en) | 2019-09-13 |
Family
ID=67861672
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810179423.2A Pending CN110232299A (en) | 2018-03-05 | 2018-03-05 | Liquid crystal display die set |
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