CN105260057A - Electronic device - Google Patents
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- CN105260057A CN105260057A CN201510655190.5A CN201510655190A CN105260057A CN 105260057 A CN105260057 A CN 105260057A CN 201510655190 A CN201510655190 A CN 201510655190A CN 105260057 A CN105260057 A CN 105260057A
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Abstract
The present invention discloses an electronic device. The electronic device comprises: a display module for displaying images, and a sensing module which is embedded inside the display module and is used for sensing a biological characteristic image of a user and sensing a touch position of the user.
Description
Technical field
The present invention relates to the field of electronic technology, more particularly, relate to and display touch-control and biological characteristic are detected integrated technical field.
Background technology
Touch-screen " sensor " is a transparency glass plate with touch-responsive surface.This sensor is placed to above LCD, makes the touch area of panel can cover the viewing area of display screen.By touch sensor and the integrated and touch display screen that is that obtain of display screen being allowed user and the content direct interaction shown on screen, and no longer need keyboard, mouse or trace ball.This means that man-machine interaction is more simple and direct.Therefore, along with the development of various Portable intelligent terminal such as such as large-screen mobile phone, panel computer etc., touch display screen is widely used, and becomes the standard configuration of Portable intelligent terminal.
In addition, along with the arrival of the emerging technology such as mobile interchange, Internet of Things tide, traditional some cannot meet social development demand to the certification recognition method of people.Closely be combined with high-tech means such as optics, acoustics, biology sensor and biostatistics principles by computing machine, utilize the biological characteristic that human body is intrinsic, (as fingerprint, palmmprint) carries out the qualification of personal identification, becomes trend of the times.
Living things feature recognition is merged at the perfection of security and convenience, while both having catered to the requirements at the higher level that intelligent movable equipment proposes security, meets again the demand of user's property easy to use.Thus, increasing Portable intelligent terminal starts assemble the assembly for detecting biological characteristic.
Such as, in the prior art, a kind of possible scheme is that the assembly for detecting biological characteristic is arranged on independently key-press module.But this needs perforate to increase cost, and the surveyed area of biological characteristic is too limited.
Summary of the invention
In view of above situation, expect to provide new and display touch-control and biological characteristic are detected the electronic equipment integrated.
According to an aspect of the present invention, provide a kind of electronic equipment, comprising: display module, for showing image; And sensing module, be embedded in described display module internal, for the biometric image of sensing user and the touch location of sensing user.
Such as, according in the electronic equipment of the embodiment of the present invention, the viewing area of described display module can overlap with the sensing region of described sensing module.
Such as, according in the electronic equipment of the embodiment of the present invention, described sensing module can comprise: the first electrode; Insulating material; Second electrode, by described insulating material and described first electrode separation, wherein said first electrode and described second electrode are configured in the sensing region of described sensing module, provide the capacitive sensing passage being enough to the biological characteristic being identified in the user placed in described sensing region; Control module, is coupled to described first electrode and described second electrode, and the signal being configured to process the predetermined quantity obtained from capacitive sensing passage is to identify biological characteristic or to determine touch location.
Such as, according in the electronic equipment of the embodiment of the present invention, the signal of the first quantity that described control module process obtains from capacitive sensing passage is to identify biological characteristic, and the signal of the second quantity that described control module process obtains from capacitive sensing passage is to determine touch location, wherein said first quantity is greater than described second quantity.
Such as, according in the electronic equipment of the embodiment of the present invention, described display module comprises: backlight, pixel electrode, layer of liquid crystal molecule, public electrode, colored filter and Polarizer, and wherein said sensing module is arranged in described layer of liquid crystal molecule.
Such as, according in the electronic equipment of the embodiment of the present invention, described display module comprises: backlight, pixel electrode, layer of liquid crystal molecule, public electrode, colored filter and Polarizer, and wherein said sensing module is between described colored filter and described Polarizer.
Such as, according in the electronic equipment of the embodiment of the present invention, described first electrode in described sensing module and described second electrode share public electrode in described display module and pixel electrode.
According in the electronic equipment of the embodiment of the present invention, by the sensing module possessing sensing touch position and biological characteristic is embedded in display module internal simultaneously, effectively can reduces equipment size and reduce costs.In addition, by the sensing module possessing sensing touch position and biological characteristic is embedded in display module internal simultaneously, can by the area extension of sensing biological characteristic to whole display screen, more greatly and more meet user carry out the use habit of biological characteristic detection while viewing display, thus the experience of user is better for the sensing region of biological characteristic.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of diagram according to the configuration of the electronic equipment of the embodiment of the present invention;
Fig. 2 is the schematic circuit that diagram touches the ultimate principle detected;
Fig. 3 is the schematic circuit of the ultimate principle of diagram fingerprint detection;
Fig. 4 is the functional block diagram of diagram according to the configuration of the sensing module in the electronic equipment of the embodiment of the present invention;
Fig. 5 is the schematic diagram of the display module illustrated according to a first embodiment of the present invention and the position relationship sensing module; And
Fig. 6 is the schematic diagram of the display module illustrated according to a second embodiment of the present invention and the position relationship sensing module.
Embodiment
Below with reference to accompanying drawings of the present invention each is preferred embodiment described.There is provided the description referring to accompanying drawing, to help the understanding to the example embodiment of the present invention limited by claim and equivalent thereof.It comprises the various details helping to understand, but they can only be counted as exemplary.Therefore, those skilled in the art will recognize that, can make various changes and modifications embodiment described herein, and do not depart from the scope of the present invention and spirit.And, in order to make instructions clearly succinct, will the detailed description to well known function and structure be omitted.
First, with reference to Fig. 1, the basic conception according to the electronic equipment of the embodiment of the present invention is described.As shown in Figure 1, electronic equipment 100 comprises display module 101 and sensing module 102.
Display module 101 is for showing image.Here display module 101 can be configured by LCDs (LCD).
It is inner that sensing module 102 is embedded in described display module 101, for the biometric image of sensing user and the touch location of sensing user.Here, it is important to note that first, sensing module 102 is not positioned over the outside of the display module 101 of individual packages (such as, above the display module 101 being positioned over individual packages), but be positioned between assembly that display module 101 inside comprises.Secondly, sensing module 102 can not only as touch sensor of the prior art the touch location of sensing user, but also can the biometric image of sensing user.
In addition, the viewing area showing module 101 overlaps at least partly with the sensing region of sensing module 102.More preferably, the viewing area of described display module 101 can overlap completely with the sensing region of described sensing module 102.That is, can not only to user's rendering content on the whole viewing area of electronic equipment, but also can detect to perform the touch location of mutual user and the biological characteristic in order to the user that performs identification simultaneously.Such as, from only can to detect fingerprint in specific keys in prior art different, because sensing region of the present invention is larger, therefore except this biometric image of fingerprint, the biometric image of such as palmmprint and so on can also be detected.
Thus, according in the electronic equipment of the embodiment of the present invention, by being embedded in display module internal by being integrated with the sensing module touching measuring ability and biological characteristic measuring ability, compared with prior art, can no longer extra openings, reduce cost, and biological characteristic surveyed area is expanded to whole viewing area, improve the experience of user and improve the convenience of use.
Below, display module internal is embedded in realize the ultimate principle shown and touch detects and biological characteristic detects by describing in detail by being integrated with the sensing module touching measuring ability and biological characteristic measuring ability.
First, will the ultimate principle touching and detect be described.
At present, capacitive touch screen has been widely used in consumer electronics, portable product field gradually.Here the core of capacitive touch screen is introduced--the ultimate principle of capacitive transducer and working knowledge.In theory, electrode, interval, another electrode, Here it is a composition capacitive transducer whole needed for.Directly on these cablings, cover the part that one deck insulation transparent plastic foil can become circuit board.When finger or object or people close to or when touching sensor, capacitive transducer can detect (or claiming sensing) to the change of capacitance.
As shown in Figure 2, actual basic capacitive transducer includes an a receiving electrode Tx and emitting electrode Rx, and it all has the metal routing be shaped on printed circuit board (PCB) (PCB) layer respectively.An electric field can be formed between receiver and transmitter cabling.Most electric field all can concentrate between two flaggies of sensor PCB.But, have edge (fringe) electric field and produced by transmitter and extend to outside PCB, and then returnly to stop to receiver.Electric field intensity on receiver utilizes built-in integral triangle (sigma-dedta) capacitive digital converter to be measured.Capacitive transducer can detect the conductor different from sensor electrode characteristic and insulator.Coincidentally, this characteristic makes the mankind very be applicable to electric field imaging, because human body major part is all water, specific inductive capacity is very large, human body containing ionic species, is also good electric conductor, so when the hand of people enters in fringe field (see Fig. 2 B Suo Shi), electronic environment will change, and causes the electric field of a part to be divided to ground wire but not returnly to stop to receiver.This changes the electric capacity that causes to reduce scope be femto farad is the size of unit, be different from general adopt when calculating electric field can be converted the micromicrofarad size that device detects.In fig. 2, Cf is the absolute capacitance between finger and receiving electrode Rx, and Ct is the mutual capacitance between receiving electrode and emitting electrode, and Δ Ct is the variable quantity of the Ct when finger occurs.
Next, the ultimate principle of biological characteristic detection will be described.Be described for fingerprint.
As shown in Figure 3, the principle of condenser type semiconductor fingerprint sensor is, be integrated with on " flat board " of thousands of semiconductor devices at one piece, finger plaster thereon with the another side which constituting electric capacity, because finger flat is rough and uneven in surface, salient point place contacts dull and stereotyped actual range size with concave point place just different, and the capacitance values of formation is also just different, the different numerical value collected around this principle gathers by equipment, just completes the collection of fingerprint.
By above finding out the description of capacitance touch Cleaning Principle and capacitance type fingerprint Cleaning Principle, both hardware principles is similar, is all that the capacitance variations that causes due to the appearance of finger according to the electric capacity of two electrodes compositions is to detect touch location or to detect fingerprint image.Unlike, Processing Algorithm is different, adopting touch algorithm then for touching detection module, adopting fingerprint algorithm to be then finger print detecting module.Further, unlike, in touch detection module, because required resolution is lower, therefore the arrangement density of electrode is less, and in finger print detecting module, because required resolution is higher, therefore the arrangement density of electrode is larger.Such as, the resolution of touch control detection may only have the sixtieth of the resolution of fingerprint detection.In addition, because the resolution of display screen has higher resolution usually, particularly, show rate respectively and can reach the resolution the same with fingerprint detection, therefore in display, integrate touch-control, fingerprint function is feasible and effective.
Below, with reference to Fig. 4 according in the electronic equipment of the embodiment of the present invention, described sensing module 102 comprises: the first electrode 401, insulating material 402, second electrode 403 and control module 404.
Second electrode 403 is separated with described first electrode 401 by described insulating material 402.Wherein, described first electrode 401 and described second electrode 403 are configured in the sensing region of described sensing module 102, provide the capacitive sensing passage being enough to the biological characteristic being identified in the user placed in described sensing region.That is, the first electrode 401 and the second electrode 403 the requirement that must meet biological characteristic detection resolution is set.
Control module 404 is coupled to described first electrode 401 and described second electrode 403, and the signal being configured to process the predetermined quantity obtained from capacitive sensing passage is to identify biological characteristic or to determine touch location.
As noted before, owing to touching the resolution of resolution lower than fingerprint detection of detection, therefore in described sensing module 102, described control module 404 processes the signal of the first quantity obtained from capacitive sensing passage to identify biological characteristic, and described control module 404 processes the signal of the second quantity obtained from capacitive sensing passage to determine touch location, wherein said first quantity is greater than described second quantity.
Next, by the embedded structure of the described sensing module of detailed description in described display module.First, the formation of lower display module 101 will be briefly introduced.Be described for LCDs (LCD).
The principle of work of LCD display: from the structure of liquid crystal display, the hierarchy that the LCD display of employing is all made up of different piece.LCD is made up of two pieces of glass plates, thick about 1mm, is separated therebetween by the 5 μm of uniform intervals including liquid crystal material.Because liquid crystal material itself is not luminous, so be all provided with the fluorescent tube as light source on display screen both sides, and one piece of backlight (or claiming even tabula rasa) and reflective membrane is had at the LCDs back side, backlight by fluorescent material form can emission of light, its effect mainly provides uniform background light source.
The light that backlight sends enters the liquid crystal layer comprising thousands of liquid crystal droplet after passing ground floor polarization filter layer.Drop in liquid crystal layer is all comprised in tiny cell structure, and one or more cell forms a pixel on screen.Be transparent electrode between glass plate and liquid crystal material, electrode is divided into row and column, and be expert at on the point of crossing of row, change the optically-active state of liquid crystal by changing voltage, the effect of liquid crystal material is similar to light valve little one by one.Control circuit part and driving circuit section at liquid crystal material periphery.When the electrode in LCD produces electric field, liquid crystal molecule will produce distortion, thus the light passed through wherein is carried out well-regulated refraction, and the filtration then through second layer filtering layer shows on screen.
In the structure of liquid crystal display inside, we can be divided into " backlight source module " and " liquid crystal panel module " two parts substantially.The structure of liquid crystal display, be to want that the picture signal represented converts electronic signal to, these electronic signals can be converted into pixel small one by one on layer of liquid crystal molecule, then formed and backlight light can be made to pass through, or the state of shield lights.Now, the change of light and shade that each pixel can not only show, in order to show colour picture, also will add GTG and the complicated electronic signal of tone these two kinds, having the liquid crystal panel pixel group of such vast number to form the picture in liquid crystal display.
Liquid crystal panel can enclose layer of liquid crystal molecule in the middle of colored filter substrate module (Polarizer, colored filter, public electrode, nesa coating) and these two up/down glass substrate assemblies of pixel driver substrate module (Polarizer, membrane transistor, pixel electrode, nesa coating, oriented film).Be positioned at the colored filter substrate assembly of top, be made up of the Polarizer on glass substrate, colored light filter membrane layer and nesa coating (common electrode), then on nesa coating, process alignment film.And the pixel driver side board unit of below, be then made up of the Polarizer on glass substrate, nesa coating (pixel electrode, membrane transistor), nesa coating processes oriented film.
Therefore, say to simplified summary, described display module 102 comprises: backlight 501, pixel electrode 502, layer of liquid crystal molecule 503, public electrode 504, colored filter 505 and Polarizer 506.
As a kind of possible embodiment, as shown in Figure 5, described sensing module 102 can be positioned in described layer of liquid crystal molecule 503.
Due to the inside at display module 101, namely embed sensing module 102 in layer of liquid crystal molecule, screen can be made like this to become more frivolous.But its subject matter is yield rate because once damage, loss be not only sensing module 102, display module 101 also will together with scrapping.
In this embodiment, due to configuration and first electrode in sensing module 102 of the public electrode 504 in display module 101 and pixel electrode 502 and the configuration of the second electrode similar, described first electrode therefore in described sensing module 102 and described second electrode can share public electrode in described display module 101 and pixel electrode.Thus according in the electronic equipment of the embodiment of the present invention, no longer need to configure the first electrode in sensing module 102 and the second electrode extraly, therefore equipment cost reduces and equipment size reduction.Such as, the mode of time-division can be adopted to carry out common electrode.In the first moment, use electrode as the public electrode for performing display and pixel electrode by display module 101, and in the second moment, use electrode as the first electrode for performing sensing and the second electrode by sensing module 102.Due to the visual persistence phenomenon of human eye, as long as therefore arrange enough short by the switching interval in the first moment and the second moment, human eye would not discover such switching.
In addition, as the embodiment that another kind is possible, as shown in Figure 6, between the colored filter 505 that sensing module 102 can be embedded into display module 101 and polaroid 506, on liquid crystal panel, described sensing module 102 is namely configured.
Due to only simple transparent electrode pattern etc. need be formed between colored filter substrate and Polarizer, therefore easily guarantee yield rate.In addition, the area in the territory, effective display area in pixel also can not reduce, and thus image quality degradation phenomena occurs hardly.
Here, it is pointed out that for the sake of clarity, illustrate only the assembly relevant to inventive concept of the present invention that comprise of display module 101 in fig. 5 and fig., and and the not shown all components that it comprises.
Up to now, the concrete configuration of the electronic equipment according to the embodiment of the present invention is described in detail referring to figs. 1 through Fig. 6.According in the electronic equipment of the embodiment of the present invention, by the sensing module possessing sensing touch position and biological characteristic is embedded in display module internal simultaneously, effectively can reduces equipment size and reduce costs.In addition, by the sensing module possessing sensing touch position and biological characteristic is embedded in display module internal simultaneously, can by the area extension of sensing biological characteristic to whole display screen, more greatly and more meet user carry out the use habit of biological characteristic detection while viewing display, thus the experience of user is better for the sensing region of biological characteristic.
It should be noted that, in this manual, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Finally, also it should be noted that, above-mentioned a series of process not only comprises with the order described here temporally process that performs of sequence, and comprises process that is parallel or that perform respectively instead of in chronological order.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required hardware platform by software and realize, and can certainly all be implemented by software.Based on such understanding, what technical scheme of the present invention contributed to background technology can embody with the form of software product in whole or in part, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
Above to invention has been detailed introduction, applying specific case herein and setting forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. an electronic equipment, comprising:
Display module, for showing image; And
Sensing module, is embedded in described display module internal, for the biometric image of sensing user and the touch location of sensing user.
2. electronic equipment according to claim 1, the viewing area of wherein said display module overlaps with the sensing region of described sensing module.
3. electronic equipment according to claim 1, wherein said sensing module comprises:
First electrode;
Insulating material;
Second electrode, by described insulating material and described first electrode separation, wherein said first electrode and described second electrode are configured in the sensing region of described sensing module, provide the capacitive sensing passage being enough to the biological characteristic being identified in the user placed in described sensing region;
Control module, is coupled to described first electrode and described second electrode, and the signal being configured to process the predetermined quantity obtained from capacitive sensing passage is to identify biological characteristic or to determine touch location.
4. electronic equipment according to claim 3, the signal of the first quantity that wherein said control module process obtains from capacitive sensing passage is to identify biological characteristic, and the signal of the second quantity that described control module process obtains from capacitive sensing passage is to determine touch location, wherein said first quantity is greater than described second quantity.
5. electronic equipment according to claim 3, wherein said display module comprises: backlight, pixel electrode, layer of liquid crystal molecule, public electrode, colored filter and Polarizer,
Wherein said sensing module is arranged in described layer of liquid crystal molecule.
6. electronic equipment according to claim 3, wherein said display module comprises: backlight, pixel electrode, layer of liquid crystal molecule, public electrode, colored filter and Polarizer,
Wherein said sensing module is between described colored filter and described Polarizer.
7. electronic equipment according to claim 5, described first electrode in wherein said sensing module and described second electrode share public electrode in described display module and pixel electrode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510655190.5A CN105260057A (en) | 2015-10-12 | 2015-10-12 | Electronic device |
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| CN201510655190.5A CN105260057A (en) | 2015-10-12 | 2015-10-12 | Electronic device |
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| CN105260057A true CN105260057A (en) | 2016-01-20 |
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| CN107194321A (en) * | 2017-04-27 | 2017-09-22 | 广东欧珀移动通信有限公司 | Display screen, display device and mobile terminal |
| WO2017206425A1 (en) * | 2016-05-31 | 2017-12-07 | 深圳信炜科技有限公司 | Flexible circuit board, biological information sensing module, and electronic device |
| CN108399352A (en) * | 2017-02-04 | 2018-08-14 | 上海箩箕技术有限公司 | Fingerprint imaging module and electronic equipment |
| CN108846313A (en) * | 2018-05-03 | 2018-11-20 | Oppo广东移动通信有限公司 | Electronic device and its fingerprint identification method |
| CN110073366A (en) * | 2019-03-11 | 2019-07-30 | 深圳阜时科技有限公司 | Biological characteristic detects mould group, backlight module, display and electronic device |
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Application publication date: 20160120 |