CN207586896U - Electronic equipment, display system and its integrated control device - Google Patents
Electronic equipment, display system and its integrated control device Download PDFInfo
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- CN207586896U CN207586896U CN201721650378.1U CN201721650378U CN207586896U CN 207586896 U CN207586896 U CN 207586896U CN 201721650378 U CN201721650378 U CN 201721650378U CN 207586896 U CN207586896 U CN 207586896U
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Abstract
This application discloses electronic equipment, display system and its integrated control devices.The integrated control device includes：Display unit, for providing display drive signals to display screen；Multiple sensor units are respectively used to acquire sensed data from multiple sensors；Processor is connected with the display unit and multiple sensor units, for controlling the display unit and multiple sensor units, manages according to the application instruction received and coordinates the multiple sensor unit；And communication interface, it is connected to communicate between the main control unit of electronic equipment with the processor.System design complexity is simplified, and alleviates the burden of main control chip.
Description
Technical field
This application involves display technology fields, are filled more particularly, to electronic equipment, display system and its integrated control
It puts.
Background technology
With the arrival in big data epoch, the safety of mass data becomes the key that must be effectively solved in " human-computer interaction "
Problem.The display screen being configured on an electronic device is applied not only to display image and text, and is further developed into human-computer interaction
Important channel.Touch sensing, fingerprint sensor, audio sensor, imaging sensor etc. can be integrated on a display screen, from
And form display system.User can directly input word, selection icon, gesture control and such as be referred on a display screen
The operations such as the living things feature recognition of line, vocal print, iris, face etc.
Various sensors and display screen are components independent of each other in traditional technology, single each by individual control
Member is connected on the main control unit of electronic equipment.Since component count is more, function is complicated, and complex procedures when causing to assemble occupy
It more space and may interfere with each other each other, package size is big, it is difficult to lightening.Such as mobile phone smart machine, due to more than
The limitation of component causes screen accounting less than normal, assembling difficulty, enterprise of high cost.On the other hand, since multiple assembly is directly by master control
Chip is coordinated and management, the main control unit work load for causing electronic equipment are heavy.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of electronic equipment, display system and its integrated controls
Device processed, wherein, multiple sensor units are incorporated in the integrated control device of display system, integrated control device is carrying out
While display driving, additionally it is possible to it is managed collectively and coordinates this multiple sensor unit to carry out the acquisition of data and transmission, from
And system design complexity is simplified, and alleviate the burden of main control chip.
It is according to the present utility model in a first aspect, provide a kind of integrated control device, including：Display unit, for aobvious
Display screen provides display drive signals；Multiple sensor units are respectively used to acquire sensed data from multiple sensors；Processor,
It is connected with the display unit and multiple sensor units, for controlling the display unit and multiple sensor units, according to
The application received instructs to manage and coordinate the multiple sensor unit；And communication interface, it is connected with the processor,
For communicating between the main control unit of electronic equipment.
Preferably, at least one of the multiple sensor unit sensor unit includes：First interface, for it is right
The sensor communication answered；Logic module, for providing drive signal to corresponding sensor and being connect from the corresponding sensor
It receives inductive signal and the inductive signal received is amplified and digital-to-analogue conversion, to generate sensed data；And second connect
Mouthful, for the processor communication.
Preferably, at least one of the multiple sensor unit sensor unit further includes：Third interface, for
The main control unit communication.
Preferably, the processor is additionally operable to handle at least part sensed data in the sensed data, and
At least one of worked as by communication interface output sensed data, treated sensed data and handling result.
Preferably, the integrated control device further includes：Nonvolatile memory is connected with the processor, for depositing
Storage sensed data, treated sensed data and handling result at least one of are worked as.
Preferably, the multiple sensors include touch sensing, fingerprint sensor, palmprint sensor, audio sensor,
At least one of imaging sensor.
Preferably, the integrated control device is one single chip.
Second aspect according to the present utility model provides a kind of display system, including：Display screen, for according to display
Data show image；At least one sensor, for obtaining the inductive signal of user's interaction；And above-mentioned integrated control dress
It puts, is connected with the display screen and at least one sensor.
The third aspect according to the present utility model, provides a kind of electronic equipment, including：Above-mentioned display system；And
Main control unit is connected with the display system, for instructing to display system sending application and being carried out between display system
Data transmit, and the application instruction contains and the management of the multiple sensors in display system and the relevant information of scheduling.
Embodiment according to the present utility model, integrated control chip is other than having display driving function, also in inside
Multiple sensor units are incorporated, are directed to such as fingerprint sensor, audio sensor, imaging sensor, pressure sensor respectively
Etc. multiple sensors, the processor of integrated control chip be capable of the main control unit of auxiliary electronic equipment to manage and coordinate a variety of biographies
The data acquisition and transmission of sensor cell simplify system design compared to traditional technology and alleviate the negative of main control unit
Load.
In a preferred embodiment, the modules of integrated control device are integrated in one single chip.Further, it will dodge
It deposits and is also integrated in the chip of integrated control device.The structure ruler of existing display module can be reduced using integrated control device
It is very little, electronic component quantity is reduced, reduces design complexities, improves yield rate.
Description of the drawings
By referring to the drawings to the description of the utility model embodiment, above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from.
Fig. 1 shows the equivalent circuit diagram of liquid crystal display device in the display system according to the utility model embodiment.
Fig. 2 shows the equivalent circuit diagrams of touch device in the display system according to the utility model embodiment.
Fig. 3 shows the internal structure schematic diagram of the display system according to the utility model embodiment.
Fig. 4 shows the circuit connection diagram of the electronic equipment comprising display system according to the utility model embodiment.
Fig. 5 shows the schematic block diagram of the electronic equipment comprising display system according to the utility model embodiment.
Fig. 6 shows the schematic block diagram of the sensor unit according to the utility model embodiment.
Fig. 7 shows a kind of schematic block diagram of integrated control device in the display system according to the utility model embodiment.
Fig. 8 shows the schematic frame of another integrated control device in the display system according to the utility model embodiment
Figure.
Fig. 9 shows in the display system according to the utility model embodiment to be shown using time-sharing multiplex mode and touch-control
Sequence diagram.
Specific embodiment
Hereinafter reference will be made to the drawings is more fully described the utility model.In various figures, identical element is using similar
Reference numeral represent.For the sake of clarity, the various pieces in attached drawing are not necessarily to scale.Furthermore, it is possible to it is not shown
Certain well known parts.
Many specific details of the utility model, such as the structure of device, material, size, place is described hereinafter
Science and engineering skill and technology, to be more clearly understood that the utility model.But just as the skilled person will understand,
The utility model can not be realized according to these specific details.
In this application, term " local " expression be arranged on display screen end integrated control device chip interior or
It is located in same printed circuit board with integrated control device.For example, " local verification " represents the chip in integrated control device
Inside performs proving program by processor, and " being locally stored " represents to store characteristic, encipheror and proving program
Non volatile memory bits are located at same printed circuit in the chip interior of integrated control device or with integrated control device
On plate.
The utility model can be presented in a variety of manners, some of them example explained below.
According to the display system of the utility model embodiment include display device and for obtain user information at least one
A sensor.The display device be, for example, selected from liquid crystal display, LED display, AMOLED display screens, quantum dot display screen,
Any one of Electronic Paper, MicroLED display screens.The sensor is, for example, to be passed selected from touch device, fingerprint sensor, optics
Any one of sensor, acoustic sensor.In examples below, illustrated by taking Touch-control liquid crystal display screen as an example, wherein,
Display device is liquid crystal display device, and sensor is touch device.
Fig. 1 shows the equivalent circuit diagram of liquid crystal display device in the display system according to the utility model embodiment.
Liquid crystal display device 110 include grid electrode drive module 111, source drive module 112, multiple thin film transistor (TFT) T, with
And the multiple pixel capacitance C formed between pixel electrode and public electrodeLC.The multiple thin film transistor (TFT) T forms array.Grid
Pole drive module 111 is respectively connected to the grid of the thin film transistor (TFT) T of corresponding line via a plurality of controlling grid scan line, for scanning
Mode grid voltage G1 to Gm is provided, so as in a picture frame period, gate the thin film transistor (TFT) do not gone together.Source electrode drives
Dynamic model block 112 is respectively connected to the source electrode of the thin film transistor (TFT) T of respective column via a plurality of source data line, in the more of each row
During a thin film transistor (TFT) T gatings, provided respectively to multiple thin film transistor (TFT) T of each row with the corresponding gray scale voltage S1 of grayscale extremely
Sn.Wherein, m and n is natural number.The drain electrode of the multiple thin film transistor (TFT) T is respectively connected to a corresponding pixel capacitance CLC。
Under strobe state, source drive module 112 applies gray scale voltage via source data line and thin film transistor (TFT) T
It is added in pixel capacitance CLCOn.Pixel capacitance CLCOn voltage act on liquid crystal molecule, so as to change the orientation of liquid crystal molecule,
To realize and the corresponding light transmittance of grayscale.In order to keep voltage, pixel capacitance C between the update cycle of pixelLCIt can be simultaneously
Join storage capacitance Cs to obtain the longer retention time.
Fig. 2 shows the equivalent circuit diagrams of touch device in the display system according to the utility model embodiment.
Touch device 120 includes touch-control drive module 121, touch-control sensing module 122 and in excitation electrode and induced electricity
The multiple inductance capacitance CT formed between pole.The multiple inductance capacitance CT forms array.Touch-control drive module 121 is connected to institute
There is capable excitation electrode, for providing pumping signal Tx1 to Txm in a manner of scanning, thus in a touch-control frame period, according to
It is secondary to provide pumping signal to the excitation electrode do not gone together.Touch-control sensing module 122 is connected to the induction electrode of all row, so as to connect
Receive the reception signal Rx1 to Rxn of respective column.Wherein, m and n is natural number.
Touch-control drive module 121 for example generates ac signal as pumping signal, and touch-control sensing module 122 for example receives
Ac signal goes out current value according to signal detection is received, further obtains driving electrodes and sensing according to the size of current value
The capacitance of electrode crossings, so as to judge whether to generate touch action in the point.
Fig. 3 shows the internal structure schematic diagram of the display system according to the utility model embodiment.In this embodiment, it shows
It is touching display screen 100 to show system.
As shown in the figure, touching display screen 100 includes liquid crystal display and stacks gradually 171 and of touch sensing thereon
Glass cover-plate 172.Liquid crystal display includes the backlight illuminating unit 131 for providing backlight and changes the liquid crystal of light transmittance according to grayscale signal
Panel.Touch sensing 171 is for example using plastic sheet as substrate.
Liquid crystal display panel further comprises the first glass substrate 141 relative to each other successively, the second glass substrate 142, is clipped in
Therebetween liquid crystal layer 161 forms the first polaroid 142 and tft array 143, in the second glass on the first glass substrate 141
The second polaroid 152 and colour filter 153 are formed on glass substrate 142.
First glass substrate 141 also forms a plurality of controlling grid scan line and a plurality of source data line and multiple pixel electrodes, TFT
Array 143 includes multiple thin film transistor (TFT)s, and the grid of the thin film transistor (TFT) is connected to a corresponding controlling grid scan line, source electrode
A corresponding source data line is connected to, drain electrode is connected to a corresponding pixel electrode.In pixel electrode and public electrode
Between form pixel capacitance.As described below, liquid crystal display panel further includes driving chip, the grid electrode drive module in the driving chip
Grid voltage and gray scale voltage are provided respectively with source drive module.
Under the strobe state of thin film transistor (TFT), source drive module, will be grey via source data line and thin film transistor (TFT)
Rank voltage is applied to pixel capacitance CLCOn.Pixel capacitance CLCOn voltage act on liquid crystal molecule, so as to change liquid crystal molecule
Orientation, with realize with the corresponding light transmittance of grayscale, shown so as to fulfill corresponding grayscale.
The touching display screen 100 of " cover board externally embedded type sensor " is shown in this embodiment, to illustrate the utility model
Basic principle.However, the utility model can be applied to the touching display screen of various structures, and it is not limited to the type of sensor
And its integration mode in display screen.
Using this design method, touch sensing 171 or be added on glass cover-plate (Cover Glass, CG) or
Person is placed in a dedicated sensor layer.Method touch sensing 171 being incorporated on glass cover-plate is sometimes referred to as " cover board
Externally embedded type sensor (Sensor-on-Lens, SoL) " or " cover board integrated solution (One Glass Solution,
OGS), because this method need not increase an individual sensor layer, merely with glass cover-plate.It is passed using independent touch-control
The design method of sensor 171 is known as glass-film (Glass-Film, GF) or glass-film-film (Glass-Film-
Film, GFF), the former uses single-layer electrodes, and the latter uses two layers of electrode.These design methods are referred to as " separate type ", that is, touch
Control sensor 171 is independent build stack on the surface of liquid crystal display.The advantage of separate type touch sensing coating is,
Technology maturation, risk are low, launch is fast.When using newest display and touch technology, separation design can be also used, at this
In the case of kind, usually separation design is integrated into subsequent design link.
In further improved structure, the electrod-array of touch sensing 171 is directly integrated into one layer of liquid crystal display
Or in multilayer.It is this it is integrated can be realized on the basic unit in display screen or within basic unit, i.e. externally embedded type (On-
Cell it) integrates or embedded (In-Cell) is integrated.
The setting of touch control electrode array is known as externally embedded type to the method on the second glass substrate 151 to integrate, because of sensing
Device is located on display screen basic unit.The driving electrodes and receiving electrode of sensor can also may be used with jumper electrical isolation
To use particular topology, so that these grids can be achieved with without building bridge.Kind design afterwards is known as individual layer multiple spot externally embedded type
(Single-Layer-On-Cell, SLOC), this design is very common, because cost is relatively low, yield is higher.
Touch function is increased simply, reliably, and this method is for active matrix to display screen using externally embedded type technology
For Organic Light Emitting Diode (Active-Matrix Organic Light Emitting Diode, AMOLED) display screen,
Often optimal selection.For relatively large display screen and curved surface or flexible display screen, no bridging is integrated in a manner of being externally embedded to
The metal net shaped sensor of line is also to select well.
Another embedded integrate belongs to hybrid design, and the driving electrodes of wherein touch sensing are embedded in the first glass
On substrate 141, and receiving electrode is then embedded on the second glass substrate 151.It is embedded that this mode is known as mixing multiple spot
(Hybrid In-Cell) is designed.In order to avoid obscuring, term " comprehensive multiple spot is embedded (Full In-Cell) " refers to drive
Moving electrode and receiving electrode are respectively positioned within basic unit.
In this embodiment, it is integrated with touch sensing in the display system.In alternate embodiments, except touch-control senses
Except device, various Photobiology sensors, such as fingerprint sensor, acoustic sensor, optical sensor etc. can also be integrated, is used
In biological informations such as acquisition fingerprint, vocal print, irises.
Fig. 4 shows the circuit connection diagram of the display system according to the utility model embodiment.In this embodiment, it shows
It is touching display screen 100 to show system.Touching display screen 100 further comprises integrated control chip 210, for in liquid crystal display
Thin film transistor (TFT) provides display drive signals, including grid voltage and gray scale voltage and is the driving electricity in touch sensing
Pole controls touch-control drive signal, and obtains reception signal from the receiving electrode in touch sensing, to judge touch location.It should
Integrated control chip 210 is connected to mainboard 410 via connection component 310.Connection component 310 is, for example, flexible PCB.Mainboard
410 include the primary processor (hereinafter referred main control unit 410) as main control unit, are used to implement the function of operating system.
The integrated control device of the prior art is used to implement at least one of display driving and touch-control driving function, but simultaneously
Such as fingerprint sensor, audio sensor, imaging sensor, pressure sensor, temperature sensor, humidity sensor cannot be managed
Etc. other sensors data acquisition and transmission.These usual sensors are connected to electronic equipment by individual control circuit
On mainboard, by the main control unit on mainboard come independent control.
Different from the integrated control device of the prior art, the integrated control chip of the utility model embodiment is aobvious in addition to having
Show except driving function, multiple sensor units are also incorporated in inside, sensed respectively for such as fingerprint sensor, audio
The multiple sensors such as device, imaging sensor, pressure sensor, temperature sensor, humidity sensor, the processing of integrated control chip
The data acquisition and transmission that device is capable of the main control unit of auxiliary electronic equipment to manage and coordinate multiple sensors unit, compared to
Traditional technology simplifies the burden that system designs and alleviates main control unit.
Fig. 5 shows the schematic block diagram of the electronic equipment comprising display system according to the utility model embodiment.Such as Fig. 5
Shown, electronic equipment includes main control unit 410 and display system, such as touching display screen described above 100.Display system can
To include：Display device 110；At least one sensor, including but not limited to touch sensing 120, fingerprint sensor 130, sound
Video sensor 140, imaging sensor 150 etc.；And integrated control device, integrated control chip 210 as escribed above.
Integrated control device 210 includes processor 211, storage unit 24, display unit 21,22 and of multiple sensor units
Communication interface 261.
As shown in figure 5, multiple sensor units include touch control unit 221, fingerprint unit 222, audio unit 223 and figure
As unit 224 (hereafter be referred to as sensor unit 22), respectively with touch sensing 120, fingerprint sensor 130, audio sensor
140 are connected with imaging sensor 150, for acquiring sensed data from corresponding sensor under the control of processor 211 and carrying
Supply processor 211.
The main control unit 410 of the electronic equipment is used to implement the function of operating system, can be by the application of electronic equipment
Processor (AP, application processor) is realized.
211 control display unit 21 of processor and multiple sensor units 22 are managed according to the application instruction received
With the multiple sensor unit 22 of coordination.For example, main control unit 410 can be needed according to application come to integrated control device
210 sending applications instruct, and using that can include the information related with the management and coordination of each sensor unit 22 in instruction, collect
Processor 211 into control device 210 carries out sensed data according to application instruction to manage and coordinate each sensor unit 22
Acquisition and transmission.As an example, user's booting needs fingerprint authentication, selected in fingerprint authentication by rear user by touch control
It selects and takes pictures, then just need integrated control device 210 that fingerprint unit 222 is first controlled to acquire finger print data from fingerprint sensor 130,
Touch control unit 221 is controlled to acquire touch data from touch sensing 120 again after, and triggered in touch control operation in fingerprint authentication
Image data is obtained from imaging sensor 150 by elementary area 224 after photographing operation.Main control unit 410 can pass through
The beginning and end to inform this sequence of operations and association each other are instructed to 210 sending application of integrated control device
It adjusts.In some embodiments, processor 211 judges whether there is collision event in can also being instructed from application, when two or more
It, can be according to preset rules or according to from main control unit 410 when the data acquisition of sensor unit has conflict
Coordination information coordinate the operation of the sensor unit clashed.Processor 211 is also based on sensed data to carry out
The data processing operations such as data encryption, safety verification, living things feature recognition, and by sensed data, by data processing
Sensed data and data processed result are supplied to main control unit 410 after at least one of working as packing.It such as can be in data
Additional start bit and type identification, add stop bits after data content and check bit, main control unit 410 can roots before holding
Which in sensed data, treated sensed data and data processed result carrys out identification data content according to type identification is
Kind, can also identify sensed data be touch sensible data, it is finger print data, image data, any in audio data.
Storage unit 24 can be nonvolatile memory, such as flash memory, sensed data can be stored, by data at
The sensed data and data processed result of reason at least one of are worked as.
Communication interface 231 can support various communications protocols and number I/O, such as I2C agreements and SPI protocol, and carry
For multiple number I/O pins.Processor 211 communicates via communication interface 231 with main control unit 410.
The structure of multiple sensor units 22 described below with reference to Fig. 6, in plurality of sensor unit 22 at least
One structure that can have Fig. 6.It is connect as shown in fig. 6, sensor unit can include first interface 1, second interface 2, third
Mouth 3 and logic module 4.First interface 1 is used to communicate with corresponding sensor, and second interface 2 is used to communicate with processor 211,
Third interface 3 is optional, is used to communicate with main control unit 410.For example, the fingerprint unit 222 of Fig. 5 can include for
The first interface 1 of the communication of fingerprint sensor 130, second interface 2 and fingerprint logic module 4 for communicating with processor 211,
Fingerprint logic module 4 can apply drive signal to fingerprint sensor 130 via first interface 1 and be obtained from fingerprint sensor 130
Inductive signal, the inductive signal received is amplified and digital-to-analogue conversion, to generate sensed data, and via second interface
Sensed data is supplied to processor 211 by 2.Optionally, fingerprint unit 222 can also include communicating with main control unit 410
Third interface 3, processor 211 can control fingerprint unit 222 that sensed data is supplied to main control unit by third interface 3
410.In some embodiments, in the case where sensor unit 22 has second interface 2 and third interface 3 simultaneously, Ke Yishe
Two kinds of operating modes are put, the sensed data that sensor unit 22 acquires in the first operation mode provides processor 211, master control list
Member 410 obtains sensed data or its treated data via the assistance of processor 211；Master control list in the second operation mode
Member 410 directly obtains sensed data via third interface 3 from control sensor unit 22, so as to enhance flexibility, raising processing
Efficiency.
In addition in some embodiments, sensor unit 22 can also use other structures as needed, such as all
As video camera etc imaging sensor 150 for, be capable of providing what can be handled by processor 211 and main control unit 410
Image data, elementary area 224 can include the image data interface for being connect with processor 211, to realize image sensing
Communication between device 150 and processor 211.In some embodiments, elementary area 244 can connect including two image datas
Mouthful, for being connect with processor 211, another is in this case, similar for being connect with main control unit 410 for one of them
In aforesaid way, main control unit 410 both can obtain image data via the assistance of processor 211, can also be directly from figure
As sensor 150 obtains data.
The integrated control chip of the utility model embodiment also incorporates other than having display driving function in inside
Multiple sensor units pass respectively for such as fingerprint sensor, audio sensor, imaging sensor, pressure sensor, temperature
The multiple sensors such as sensor, humidity sensor, the processor of integrated control chip are capable of the main control unit of auxiliary electronic equipment
Management and the data acquisition and transmission for coordinating multiple sensors unit, simplify system design compared to traditional technology and mitigate
The burden of main control unit.
Fig. 7 shows a kind of schematic block diagram of integrated control device in the display system according to the utility model embodiment.
The display system is for example, by using liquid crystal display.
As shown in the figure, integrated control chip 210 includes processor 211, communication interface 231, storage unit 24, display unit
21 and sensor unit 22.
Processor 211 is von Karman or the RISC CPU, including but not limited to ARM, MIPS, OPEN of Harvard framework
RISC etc., preferably ARM；Can also be DSP etc..The processor 211 can be managed and be assisted according to the application instruction received
The multiple sensor unit 22 is adjusted to carry out the acquisition and transmission of sensed data.Processor 211 can also be directed to touch control detection or
It is optimized for the sensor of remaining type.It can be inputted in processing locality touch-control, to judge whether to need wake operation
Systems process user is asked.In some embodiments, processor 211 be also based on sensed data carry out such as data encryption,
The data processing operations such as safety verification, living things feature recognition, and as needed provide corresponding data via communication interface 231
To main control unit 410.For example, processor 211 can be by untreated sensed data, biometric templates, safety verification knot
One or more packings in fruit and encryption data are supplied to main control unit 410.
Communication interface 231 can support various communications protocols and number I/O, such as I2C agreements and SPI protocol, and carry
For multiple number I/O pins.The user interface 231 can communicate with one another with the primary processor on mainboard.
Storage unit 24 can include data RAM 241, program RAM 242, guiding ROM 243 and flash memory 244.In flash memory
Following at least one can be stored in 244：Sensed data, encryption data, characteristic, encipheror, secret key and proving program.
For example, in integrated control chip 210 can be powered on period, the bootstrap in ROM243 is guided to detect flash memory 244, and
Encipheror is loaded when needing encryption from flash memory 244 sensitive data to be encrypted, and store encrypted sensitive data.
The data that processor 211 generates during operation can be stored in data RAM 241.In this embodiment, in flash memory 244
Characteristic can come from the primary processor on mainboard or under the control of processor 211 locally acquisition and data at
Manage the characteristic obtained.In the case of the latter, the not only sensitive data of user but also characteristic is locally generated.Behaviour
Make system and only obtain verification result from integrated control chip 210, and both sensitive data and characteristic can not be got, from
And be conducive to improve safety.
Display unit 21 includes display controller 212, graphics engine 213, sequence controller 214, display and graphic interface
215th, grid electrode drive module 216, source drive module 217, common voltage drive module 218, backlight control module 219 and gamma
Base modules 251.Display controller 212 is used to generate graph data according to the display data of input.Graphics engine 213 is used to control
Memory window processed, cursor, pointer and smart figure, so as to provide high performance optimization figure for touch-control.Display and figure connect
Mouth 215 provides the display interface of a variety of industrial standards, for receiving display data, such as DSI TCVR, DBI I/F, DPI I/
F.Backlight control module 219 is used to control the backlight of liquid crystal display, low-power consumption management is realized, so as to energy saving with existing backlight
Technology is combined.Grid electrode drive module 216, source drive module 217, common voltage drive module 218 are respectively used to generate grid
Pole tension, gray scale voltage and common voltage.Sequence controller 214 is used to control the output time of gate electrode and gray scale voltage,
So as to which in a picture frame period, grid voltage G1 to Gm is provided in a manner of scanning, selected in the thin film transistor (TFT) of corresponding line
When logical, to multiple thin film transistor (TFT) T offers and the corresponding gray scale voltage S1 to Sn of grayscale of each row, so as on pixel capacitance
Apply voltage and change the orientation of liquid crystal molecule, to realize and the corresponding light transmittance of grayscale.Gamma base modules 251 are used to deposit
It stores up gamma correction curve and provides correction signal to source drive module 217 for correcting the gray scale voltage, to meet people
Eye is to the nonlinear requirements of brightness change.
Sensor unit 22 include but not limited to above-mentioned touch control unit 221, fingerprint unit 222, audio unit 223 and
Elementary area 224, respectively with touch sensing 120,150 phase of fingerprint sensor 130, audio sensor 140 and imaging sensor
Connect, for acquiring sensed data from corresponding sensor under the control of processor 211 and being supplied to processor 211.Multiple biographies
At least one of sensor cell 22 can have the structure described above with reference to Fig. 6.In some embodiments, integrated control core
Piece 210 obtains the mark of each sensor by the hardware interface of sensor unit 22, such as can consider from touch control unit
221 sensed data is that touch sensing 120 provides, and the sensed data from fingerprint unit 222 is that fingerprint sensor 130 carries
It supplies.In alternate embodiments, mark and inductive signal can be sent to integrated control together by each sensor 120 to 150
Coremaking piece 210, in order to which integrated control chip 210 distinguishes that sensed data comes from that sensor..
Integrated control device has at least one of display driving and touch-control driving function according to prior art, and such as
The sensor of fingerprint sensor, audio sensor, imaging sensor, pressure sensor etc passes through individual control unit and master
Plate is connected, and is managed and is controlled by the main control unit on mainboard.
Unlike the prior art, in this embodiment, it is incorporated in integrated control chip 210 and is directed to multiple sensors respectively
120 to 150 multiple sensor units 22, processor 211, can be with other than having display driving and touch-control driving function
Have both the multiple sensors function such as fingerprint collecting, Image Acquisition.On the one hand, originally independent, dispersion sensor control circuit is whole
It is combined, so as to reach highly integrated synergy, reduces assembly process and make component occupied space minimization, simplify people
The design of machine interaction systems.On the other hand, the main control unit of electronic equipment need not connect and manage one by one numerous sensing
Device alleviates the work load of main control unit.In some embodiments, integrated control device can also locally carry out some data
Processing, such as data encryption, safety verification etc., so as to further improve safety.However, the utility model is not limited to.
Integrated control chip 210 can form multiple chips, and be commonly mounted on the circuit board at display screen end.
Sensed data, characteristic, encryption are stored using flash memory 244 in the integrated control chip 210 of the embodiment
At least one of program, encryption data and proving program.However, the utility model is without being limited thereto.In alternate embodiments,
Integrated control chip 210 may be used any kind of nonvolatile memory, for example, selected from flash memory, SRAM, DRAM,
Any one of EEPROM, EPROM.
In this embodiment, flash memory 244 is integrated in integrated control chip 210, to improve safety.In the implementation of replacement
In example, flash memory 244 can be located at the outside of integrated control chip 210 and be connected via bus with integrated control chip 210,
To reduce system cost.
Fig. 8 shows the schematic frame of another integrated control device in the display system according to the utility model embodiment
Figure.The display system is for example, by using AMOLED display screens.
As shown in the figure, integrated control chip 220 include processor 211, communication interface 231, storage unit, display unit and
Touch control unit.
Processor 211 is von Karman or the RISC CPU, including but not limited to ARM, MIPS, OPEN of Harvard framework
RISC etc., preferably ARM；Can also be DSP etc..The processor 211 can be managed and be assisted according to the application instruction received
The multiple sensor unit 22 is adjusted to carry out the acquisition and transmission of sensed data.Processor 211 can also be directed to touch control detection or
It is optimized for the sensor of remaining type.It can be inputted in processing locality touch-control, to judge whether to need wake operation
Systems process user is asked.In some embodiments, processor 211 be also based on sensed data carry out such as data encryption,
The data processing operations such as safety verification, living things feature recognition, and as needed provide corresponding data via communication interface 231
To main control unit 410.For example, processor 211 can be by untreated sensed data, biometric templates, safety verification knot
One or more packings in fruit and encryption data are supplied to main control unit 410.
Communication interface 231 can support various communications protocols and number I/O, such as I2C agreements and SPI protocol, and carry
For multiple number I/O pins.The user interface 231 can communicate with one another with the primary processor on mainboard.
Storage unit 24 can include data RAM 241, program RAM 242, guiding ROM 243 and flash memory 244.In flash memory
At least one of sensed data, characteristic, secret key, encryption data, encipheror and proving program are stored in 244.Collecting
Period is powered on into control chip 220, the bootstrap in ROM243 is guided to detect flash memory 244, and add from flash memory 244
Encipheror and proving program are carried, and is decrypted and stores data in program RAM.Processor 211 is during operation
The data of generation can be then stored in data RAM 241.In this embodiment, the characteristic in flash memory 244 can come from
Primary processor on mainboard or the characteristic that locally acquisition and data processing obtain under the control of processor 211.
In the case of the latter, the not only sensitive data of user but also characteristic is locally generated.Operating system is only from integrated
Chip 220 is controlled to obtain verification result, and both sensitive data and characteristic can not be got, so as to be conducive to further carry
High security.
Display unit 21 includes display controller 212, graphics engine 213, sequence controller 214, display and graphic interface
215th, row drive module 226, row drive module 227 and gamma base modules 251.Display controller 212 is used for according to input
Display data generates graph data.Graphics engine 213 is for controlling memory window, cursor, pointer and smart figure, so as to be directed to
Touch-control provides high performance optimization figure.Display and graphic interface 215 provide the display interface of a variety of industrial standards, for receiving
Display data, such as DSI TCVR, DBI I/F, DPI I/F.Row drive module 226 and row drive module 227 are respectively used to produce
Raw grid voltage and gray scale voltage.Sequence controller 214 is used to control the output time of gate electrode and gray scale voltage, thus
In one picture frame period, grid voltage G1 to Gm is provided in a manner of scanning, in the thin film transistor (TFT) gating of corresponding line, to
The multiple thin film transistor (TFT) T respectively arranged are provided and the corresponding gray scale voltage S1 to Sn of grayscale, so as to apply on a light emitting diode
The electric current of numerical value corresponding with gray scale voltage and shine, with realize with the corresponding light emission luminance of grayscale.Gamma base modules 251
Correction signal is provided for correcting the gray scale voltage for storing gamma correction curve and nematic drive module 227, with symbol
Close nonlinear requirements of the human eye to brightness change.
Sensor unit 22 include but not limited to above-mentioned touch control unit 221, fingerprint unit 222, audio unit 223 and
Elementary area 224, respectively with touch sensing 120,150 phase of fingerprint sensor 130, audio sensor 140 and imaging sensor
Connect, for acquiring sensed data from corresponding sensor under the control of processor 211 and being supplied to processor 211.Multiple biographies
At least one of sensor cell 22 can have the structure described above with reference to Fig. 6.In some embodiments, integrated control core
Piece 220 obtains the mark of each sensor by the hardware interface of sensor unit 22, such as can consider from touch control unit
221 sensed data is that touch sensing 120 provides, and the sensed data from fingerprint unit 222 is that fingerprint sensor 130 carries
It supplies.In alternate embodiments, mark and inductive signal can be sent to integrated control together by each sensor 120 to 150
Coremaking piece 220, in order to which integrated control chip 220 distinguishes that sensed data comes from that sensor.
In this embodiment, it is incorporated in integrated control chip 220 respectively for the multiple of multiple sensors 120 to 150
Sensor unit 22, processor 211 in addition to have display driving and touch-control driving function other than, can also have both fingerprint collecting,
The multiple sensors function such as Image Acquisition.On the one hand, originally independent, dispersion sensor control circuit combines, so as to
Reach highly integrated synergy, reduce assembly process and make component occupied space minimization, simplify human-computer interaction system
Design.On the other hand, the main control unit of electronic equipment need not connect and manage one by one numerous sensor, alleviate master control
The work load of unit.In some embodiments, integrated control device can also locally carry out some data processings, such as data
Encryption, safety verification etc., so as to further improve safety.In some embodiments, integrated control device can also be local
Some data processings, such as data encryption, safety verification etc. are carried out, so as to further improve safety.However, this practicality is new
Type is not limited to.Integrated control chip 210 can form multiple chips, and be commonly mounted on the circuit board at display screen end.
Sensed data, characteristic, encryption are stored using flash memory 244 in the integrated control chip 210 of the embodiment
At least one of program, encryption data and proving program.However, the utility model is without being limited thereto.In alternate embodiments,
Integrated control chip 210 may be used any kind of nonvolatile memory, for example, selected from flash memory, SRAM, DRAM,
Any one of EEPROM, EPROM.
In this embodiment, flash memory 244 is integrated in integrated control chip 220, to improve safety.In the implementation of replacement
In example, flash memory 244 can be located at the outside of integrated control chip 220 and be connected via bus with integrated control chip 220,
To reduce system cost.
Fig. 9 shows in the display system according to the utility model embodiment to be shown using time-sharing multiplex mode and touch-control
Sequence diagram.
In practical applications, display system can integrate a plurality of types of sensors.Processing in integrated control chip 210
Device has display driving, sensor driving and three kinds of functions of safety verification concurrently, so as to provide the secure authentication mechanisms of hardware level.Respectively
Kind sensing unit is in periodical polling status with relatively low working frequency.
For touch control detection, when sensing unit senses are to when having object touch, conversion is in working condition, and acquisition touches number
According to display data and touch data are by the way of time-sharing multiplex at this time.
For contact living things feature recognition, such as fingerprint recognition, contact living things feature recognition needs to touch, therefore,
The biological attribute data that this mode acquires is similar with touch data, with display data by the way of time-sharing multiplex.
Contactless biometric is identified, is preset.For needing the acquisition manually supervised, string may be used
Row data frame, switching display data is current gathered data, after currently displayed gathered data terminates, then is switched to original
Picture to be shown.And if contactless biometric identification gatherer process does not need to manually supervise (unsupervised), can be with
Display data is by the way of time-sharing multiplex in background process.When such as using imaging sensor acquisition image, need manually to proofread
Whether real-time image acquisition meets the requirements, then can show and be currently capturing object, and display data is imaging sensor at this time
Current gathered data.
It need to be illustrated for the situation of synchronous progress by touch-control with display.
Blanking interval in picture frame handoff procedure, display unit are smaller for the influence of noise of touch control unit.Thus exist
Device in actual work, display and touch-control using time-sharing multiplex principle, display data processing can with touch data processing when
Between it is upper separate, interfered with each other with reducing.Among image frame scan, some time slots are marked off, as touch-control frame.
As shown in figure 9, during a picture frame, multiple display period TP and multiple touch-control periods are respectively included
TP.In different times in section, the alternately processing of display data and touch data.That is display and touch-control time-sharing multiplex.Cause
Human eye has certain recognition time window to changing picture, thus frame per second and the time accounting of two kinds of periods have and have to
It asks.Using this type of drive, influence of the noise electric signal of LCD array to touch working lining can be effectively reduced, also
Shielding lamination is saved, reduces the thickness of touching display screen.
More than time-sharing multiplex function, can be operated by software program, can also be combined MUX multiplexings and be multiplexed selecting unit
It switches over.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in process, method, article or equipment including the element.
Embodiment according to the utility model as described above, these embodiments there is no all details of detailed descriptionthe,
Also it is only the specific embodiment not limit the utility model.Obviously, as described above, many modification and change can be made
Change, change including but not limited to the local structure of circuit, the replacement to the type or model of component.This specification is chosen
And these embodiments are specifically described, it is the principle and practical application in order to preferably explain the utility model, so as to make affiliated skill
Art field technology personnel can be used using the utility model and the modification on the basis of the utility model well.This practicality is new
Type is limited only by the claims and their full scope and equivalents.
Claims (9)
1. a kind of integrated control device, which is characterized in that including：
Display unit, for providing display drive signals to display screen；
Multiple sensor units are respectively used to acquire sensed data from multiple sensors；
Processor is connected with the display unit and multiple sensor units, for controlling the display unit and multiple sensings
Device unit manages according to the application instruction received and coordinates the multiple sensor unit；And
Communication interface is connected with the processor, for communicating between the main control unit of electronic equipment.
2. integrated control device according to claim 1, which is characterized in that at least one in the multiple sensor unit
A sensor unit includes：
First interface, for communicating with corresponding sensor；
Logic module, for providing drive signal to corresponding sensor and receiving inductive signal from the corresponding sensor,
And the inductive signal received is amplified and digital-to-analogue conversion, to generate sensed data；And
Second interface, for the processor communication.
3. integrated control device according to claim 2, which is characterized in that at least one in the multiple sensor unit
A sensor unit further includes：
Third interface, for communicating with the main control unit.
4. integrated control device according to claim 1, which is characterized in that the processor is additionally operable to the sensing number
At least part sensed data in is handled, and exports sensed data, treated sensing by the communication interface
Data and handling result at least one of are worked as.
5. integrated control device according to claim 1, which is characterized in that further include：Nonvolatile memory, it is and described
Processor is connected, and at least one of works as storing sensed data, treated sensed data and handling result.
6. integrated control device according to claim 1, which is characterized in that the multiple sensors are sensed including touch-control
At least one of device, fingerprint sensor, palmprint sensor, audio sensor, imaging sensor.
7. integrated control device according to claim 1, wherein, the integrated control device is one single chip.
8. a kind of display system, including：
Display screen, for showing image according to display data；
At least one sensor, for obtaining the inductive signal of user's interaction；
Integrated control device according to any one of claim 1 to 7, with the display screen and at least one sensing
Device is connected.
9. a kind of electronic equipment, including：
Display system according to claim 8；
Main control unit is connected with the display system, for being instructed and between display system to display system sending application
Data transmission is carried out, the application instruction contains and the management of the multiple sensors in display system and the relevant letter of scheduling
Breath.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817964A (en) * | 2017-11-30 | 2018-03-20 | 北京集创北方科技股份有限公司 | Electronic equipment, display system and its integrated control device |
| US11403251B2 (en) | 2018-07-09 | 2022-08-02 | Chipone Technology (Beijing) Co., Ltd. | Single-wire transmission method, chip and communication system |
| CN115206254A (en) * | 2022-06-15 | 2022-10-18 | Tcl华星光电技术有限公司 | Display device, display control method and electronic equipment |
-
2017
- 2017-11-30 CN CN201721650378.1U patent/CN207586896U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817964A (en) * | 2017-11-30 | 2018-03-20 | 北京集创北方科技股份有限公司 | Electronic equipment, display system and its integrated control device |
| US11403251B2 (en) | 2018-07-09 | 2022-08-02 | Chipone Technology (Beijing) Co., Ltd. | Single-wire transmission method, chip and communication system |
| CN115206254A (en) * | 2022-06-15 | 2022-10-18 | Tcl华星光电技术有限公司 | Display device, display control method and electronic equipment |
| US11798455B1 (en) | 2022-06-15 | 2023-10-24 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display device, display control method, and electronic equipment |
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