CN101901023A - Double screen hand-held device based on paper-like display and liquid crystal display - Google Patents
Double screen hand-held device based on paper-like display and liquid crystal display Download PDFInfo
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- CN101901023A CN101901023A CN2009100851031A CN200910085103A CN101901023A CN 101901023 A CN101901023 A CN 101901023A CN 2009100851031 A CN2009100851031 A CN 2009100851031A CN 200910085103 A CN200910085103 A CN 200910085103A CN 101901023 A CN101901023 A CN 101901023A
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Abstract
The invention discloses a double screen hand-held device based on paper-like display and liquid crystal display, which belongs to the field of electric digital data processing. The device comprises a reader with a paper-like display screen and a computer with a liquid crystal display, wherein the reader and the computer share one power system, and the reader is connected to the computer through a control interface. The double screen hand-held device based on the paper-like display and the liquid crystal display integrates the computer with the reader through the control interface, so that the computer and the reader share one power system; the computer and the reader share the advantages and complement the disadvantages; the invention can realize all functions of the computer and satisfy the user demand for long time reading; and on the premise of satisfying the user demand for electronic reading, the invention provides the user with more functions of computer operation.
Description
Technical field
The present invention relates to computer and e-book technology, be specifically related to a kind of double screen hand-held device based on demonstration of class paper and liquid crystal display.
Background technology
E-book reader is a kind of instrument of browsing e-book, and the technology that is applied to the E-book reader screen has class paper display technique and lcd technology etc.
Wherein, E-book reader screen as concrete utilization class paper display technique is called as electrophoretic display device (EPD), electronic ink display, electric ink screen, Electronic Paper and electric paper etc.; its displaying principle is to apply voltage on display; make the charged particle generation electrophoretic effect of display interior; produce the demonstration of different gray scales; thereby present class paper display effect, reflection shows fully, realizes reading with great visual angle, vision protection and energy-conserving and environment-protective etc.In addition, because the E-book reader screen of utilization class paper display technique has the demonstration memory characteristic, promptly after the demonstration of finishing piece image on the screen, just no longer need consumed power promptly not need electric energy to keep the demonstration of image at screen, ability consumed power when only on screen, needing refreshed image, therefore, the E-book reader screen of utilization class paper display technique has advantages such as super low-power consumption and super long standby time.
At present, the part reader possesses the function of regulating font size, but only possesses the function of the black white image that shows JPEG, GIF form and Word file, RSS subscribe to news.Although it shows that memory characteristic is fit to display text very much, but because the E-book reader screen of utilization class paper display technique can only support that at present gray scale shows, refresh rate is slow, multimedia performance a little less than, when application demands such as video, online, real-time, interactive class were arranged as the user, existing E-book reader then can't be met consumers' demand.
UMPC (Ultra-mobile Personal Computer, super mobile personal computer) etc. new product is as small and exquisite removable computer, though multimedia performance is strong, also can be directly as the reading device of electronic document, there is the power consumption height in it, the deficiency big, that stand-by time is short of generating heat.In case when the user needed long document to read, highlighted display easily caused user's visual fatigue, applicability can reduce greatly.
Summary of the invention
The invention provides a kind of double screen hand-held device, can when satisfying the user's electronic reading, provide the function of more computation aspect for the user based on demonstration of class paper and liquid crystal display.
The invention provides a kind of double screen hand-held device based on demonstration of class paper and liquid crystal display, comprise: the reader and the computer that has LCD that have the class paper display screen, the shared cover power-supply system of described reader and described computer, described reader is connected on the described computer by control interface.
Preferably, described power-supply system comprises:
The computer power supply unit, being used for is separately described computer and LCD device electric supply thereof;
The reader power supply unit, being used for is separately the power supply of described reader and class paper display screen thereof;
Power-supply controller of electric is used for showing and the mode of operation of the double screen hand-held device of liquid crystal display based on class paper according to described, controls described computer power supply unit and described reader power supply unit and powers.
Preferably, described mode of operation comprises: first mode of operation, second mode of operation and the 3rd mode of operation, in first mode of operation, described computer power supply unit is described computer and LCD device electric supply thereof, and described reader power supply unit is described reader power supply; Under second mode of operation, described computer power supply unit is described computer power supply, and described reader power supply unit is described reader and the power supply of ink screen thereof; Under the 3rd mode of operation, described reader power supply unit is described reader and the power supply of ink screen thereof.
Alternatively, described double screen hand-held device based on demonstration of class paper and liquid crystal display also comprises:
Mode selection part is used to select describedly show and the mode of operation of the double screen hand-held device of liquid crystal display based on class paper.
Alternatively, described mode selection part is specially: button or dial.
Alternatively, described mode selection part is the soft-key button of computer operating system.
Alternatively, described mode selection part selects mode of operation to be specially: click described LCD or class paper display screen by the electromagnetism stylus and select describedly to show and the mode of operation of the double screen hand-held device of liquid crystal display based on class paper.
Described computer comprises: computer main board, described computer main board comprise CPU and system controller line concentration chip, comprise video module in the described system controller line concentration chip, and the vision signal that is used for obtaining from CPU outputs to described LCD;
Described reader comprises: the embedded microcontroller that is used for outputting video signal; Be used for the vision signal of described embedded microcontroller output is converted to the class paper display screen controller of the signal that drives described class paper display screen;
Under second mode of operation, described computer main board is closed described video module, and vision signal is sent to described embedded microcontroller by described control interface.
Preferably, described reader also comprises: the hand-written controller of electromagnetic antenna and electromagnetism, wherein:
Described electromagnetic antenna is used for receiving electromagnetic signals;
The hand-written controller of described electromagnetism is used for that described electromagnetic signal is converted to rs 232 serial interface signal and outputs to described computer main board or embedded microcontroller, so that described computer and described reader are realized the style of writing control function.
Preferably, described electromagnetic antenna is separately positioned on the LCD and the class paper display screen back side.
Alternatively, the switching of different working modes is triggered by described mode selection part; Perhaps the soft-key button by computer operating system triggers; Perhaps click described LCD or the triggering of class paper display screen by the electromagnetism stylus.
Alternatively, described control interface is specially: USB interface, IEEE1394 interface, Ethernet Ethernet interface, standard VGA interface or mini-PCIE.
Preferably, the positional structure of described class paper display screen and described LCD is a bilateral structure.
By above technical scheme provided by the invention as can be seen, the double screen hand-held device based on demonstration of class paper and liquid crystal display that the embodiment of the invention provides combines computer and reader by control interface, unite two into one, share a cover power-supply system, both advantages are shared, the shortcoming complementation.Both the computer repertoire can be realized, and the long-time demand of reading of user can be satisfied again.
Description of drawings
Fig. 1 is the principle schematic of the embodiment of the invention based on the double screen hand-held device of demonstration of class paper and liquid crystal display;
Fig. 2 is the basic structure synoptic diagram of reader in the embodiment of the invention;
Fig. 3 is the principle schematic of power-supply system in the embodiment of the invention.
Embodiment
In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is described in further detail below in conjunction with drawings and embodiments.
The double screen hand-held device based on demonstration of class paper and liquid crystal display that the embodiment of the invention provides combines computer and reader by control interface, unite two into one, and shares a cover power-supply system, and both advantages are shared, the shortcoming complementation.Both the computer repertoire can be realized, and the long-time demand of reading of user can be satisfied again.
As shown in Figure 1, be the principle schematic of the embodiment of the invention based on the double screen hand-held device of demonstration of class paper and liquid crystal display.
In this embodiment, described double screen hand-held device based on demonstration of class paper and liquid crystal display comprises: have the reader 102 and the computer 104 that has LCD 103 of class paper display screen 101, wherein,
Described reader 102 and described computer 104 shared cover power-supply systems 105, described reader 102 is connected on the described computer 104 by control interface 106.Described control interface 106 specifically can but to be not limited to be network interface, IEEE1394 interface (a kind of high-speed equipment interface that is used for computing machine) or USB (Universal Serial BUS, USB (universal serial bus)) mouth, Ethernet Ethernet interface, standard VGA interface or mini-PCIE etc.
This control interface 106 is used for setting up data and control link between computer 104 and reader 102, both can so that the data on 104 pairs of readers 102 of computer read and write, video data can be sent to reader 102 again, show by the class paper display screen 101 on the reader 102.
Described class paper display screen 101 is a kind of screens that adopt Electronic Paper, and described Electronic Paper is made up of electric ink and two plate bases, has the countless particulates that electric ink is housed between the substrate, has the low characteristics of consumption rate.
In embodiments of the present invention, described demonstration can have multiple different mode of operation with the double screen hand-held device of liquid crystal display based on class paper, and reader 102 and described computer 104 can work alone respectively as described, also can pass through control interface 106 collaborative works.
For convenience of description, show and the mode of operation of the double screen hand-held device of liquid crystal display is divided into following three classes based on class paper described:
1. first mode of operation, under this pattern, described power-supply system 105 is computer 104 and LCD 103 power supplies thereof, be reader 102 power supplies simultaneously, and disconnection is to the power supply of class paper display screen 101.Under this pattern, computer 104 operate as normal, and with LCD 103 as its display device.
2. second mode of operation, under this pattern, described power-supply system 105 is computer 104 power supplies, and disconnects the power supply to LCD 103, be that reader 102 and class paper display screen 101 thereof are powered simultaneously.Under this pattern, computer 104 operate as normal, and with class paper display screen 101 as its display device.
3. the 3rd mode of operation, under this pattern, described power-supply system 105 is that reader 102 and class paper display screen 101 thereof are powered separately, and disconnection is to the power supply of computer 104 and LCD 103 thereof, that is to say under this pattern, to have only reader 102 in work, and computer 104 is in off-position, does not work.
In embodiments of the present invention, described double screen hand-held device based on demonstration of class paper and liquid crystal display can be designed to front-back two-sided structure, and one side is the LCD 103 of computer, and one side is the class paper display screen 101 of electric paper book, and the two sides all can be used.Like this, can reduce volume, be convenient for carrying.Certainly, also can be designed to single-sided structure, LCD 103 and class paper display screen 101 is placed side by side.
In embodiments of the present invention, described reader can be common reader, can realize the repertoire of common reader, as operations such as demonstration, page turning, line feed.
With reference to Fig. 2, be a kind of basic structure synoptic diagram of reader in the embodiment of the invention.
Described reader mainly comprises: flash memory 201, embedded microcontroller (MCU) 202, class paper display screen controller (EPDC) 203, SDRAM204, SDRAM205, electromagnetic antenna 206 and the hand-written controller 207 of electromagnetism.Wherein:
Flash memory 201 is used to store the embedded OS mirror image;
SDRAM204 is used for loading electric paper book operating system mirror image and some other application programs after system start-up;
Embedded microcontroller 202 is used for receiving electromagnetic signals, and according to the electromagnetic signal outputting video signal that receives;
Class paper display screen controller 203 is used for the vision signal of described embedded microcontroller 202 outputs is converted to the signal that can drive described class paper display screen 208;
SDRAM205 is used to output video image to set up buffer zone;
The hand-written controller 207 of electromagnetism is used for that the electromagnetic signal that described electromagnetic antenna 206 receives is converted to rs 232 serial interface signal and outputs to embedded microcontroller 202, realizes time writer touch-control system function.
In embodiments of the present invention, described computer 104 can be common ultra portable computer, comprise: computer main board, described computer main board mainly contains CPU, system controller line concentration chip, SDRAM (SynchronousDynamic Random Access Memory, Synchronous Dynamic Random Access Memory) and some peripheral chips, such as, audio interface, video card interface, SD (Secure Digital Memory Card, safe digital card)/peripheral components such as MMC (Multimedia Card, multimedia card) interface.Comprise video module in the described system controller line concentration chip, the vision signal that is used for obtaining from CPU outputs to described LCD 103.That is to say that described computer 104 can be realized the repertoire of common super portable computer, as audio-visual broadcast, word processing, surfing on the net etc.
In embodiments of the present invention, describedly show and the volume of the double screen hand-held device of liquid crystal display in order further to reduce based on class paper, make it be more convenient for carrying, the hand-written control device of electromagnetism can also be set on described computer 104, replace the input equipment of common super portable computer with the electromagnetism stylus, such as keyboard or mouse.Particularly, electromagnetic antenna and the hand-written controller of electromagnetism (not shown) can be set in described computer 104.Wherein, described electromagnetic antenna is used for receiving electromagnetic signals; The hand-written controller of described electromagnetism is used for that described electromagnetic signal is converted to rs 232 serial interface signal and outputs to described computer main board, so that described LCD is realized the style of writing control function.In actual applications, described electromagnetic antenna can be arranged at the back side of described LCD, its structure is consistent with structure in the common reader, is not described in detail at this.
Like this, can not only carry out control operation, and can carry out control operation computer by the electromagnetism stylus to reader, do not need input equipments such as keyboard or mouse, can realize operation to computer, such as, the same user experience of PC can be obtained when carrying out amusement function; In the time of need carrying out word read and document process, can surf the Net and download after document, books, the mail, can close computer, on double screen hand-held device screen, read mail, the novel of downloading from computer, carry out document process work based on demonstration of class paper and liquid crystal display.
With reference to Fig. 3, be the principle schematic of power-supply system in the embodiment of the invention.
In this embodiment, described power-supply system 300 comprises: computer power supply unit 302, reader power supply unit 303 and power-supply controller of electric 304.Wherein:
Computer power supply unit 302, being used for is separately described computer and LCD device electric supply thereof;
Reader power supply unit 303, being used for is separately the power supply of described reader and class paper display screen thereof;
Power-supply controller of electric 304, be used for showing and the mode of operation of the double screen hand-held device of liquid crystal display based on class paper according to described, control the power supply of described computer power supply unit and described reader power supply unit, so that described the demonstration based on class paper works in different mode of operations with the double screen hand-held device of liquid crystal display.
Described power-supply system 300 can be connected on the AC power by power supply adaptor, also can provide power supply by battery.
In embodiments of the present invention, the switching between different working modes can be triggered by hardware and software.
If adopt the hardware trigger mode, can the embodiment of the invention show based on class paper and the double screen hand-held device of liquid crystal display in mode selection part (not shown) is set, to select the mode of operation of described double screen hand-held device based on demonstration of class paper and liquid crystal display.Described mode selection part specifically can be button or dial etc.
Like this, described power-supply controller of electric 304 just can be controlled described computer power supply unit 302 and 303 power supplies of described reader power supply unit according to the mode of operation of described mode selection part selection.
By described power-supply system 300, can make described double screen hand-held device work in three kinds of operational mode state introducing previously based on demonstration of class paper and liquid crystal display.
Describe in detail in the embodiment of the invention based on class paper below in conjunction with Fig. 3 and to show and process is changed in the switching of the double screen hand-held device different working modes of liquid crystal display.
At first, by the mode of operation of mode selection part selection based on the double screen hand-held device of demonstration of class paper and liquid crystal display, suppose to select first mode of operation, after system powers on, after the mode of operation that power-supply controller of electric 304 detects selection is first mode of operation, to computer power supply unit 302 output signals, simultaneously to reader power supply unit 303 output signals.
Computer power supply unit 302 begins computer 305 and the power supply of LCD 306 parts thereof.Particularly, after computer 305 parts were started working, the outputs state detection signal showed that the state of oneself is " ON ".Simultaneously, make it to LCD 306 power supplies to i.e. LCD device electric supply module 321 output signals shown in the figure of the power pack of LCD.Computer partial circuit operation this moment, LCD 306 normally shows, all functions that the user can use this computer to provide are such as audio-visual broadcast, word processing, surfing on the net etc.
In this case, reader 307 is subjected to the Control work of power-supply controller of electric 304 in the slave pattern, under this pattern, embedded controller in the reader 307 is according to pre-configured register setting, turn-off supply module 331 signals of class paper display screen, make it not to 308 power supplies of class paper display screen.
In this case, reader 307 is subjected to power-supply controller of electric 304 Control work in the slave pattern, and under this pattern, embedded controller is according to pre-configured register setting in the reader, turn-off supply module 331 signals of class paper display screen, make it not to 308 power supplies of class paper display screen.
When needs carry out state when switching, can by hardware and/mode of software realizes.Such as, need be when first mode of operation switches to second mode of operation, produce mode select signal by described mode selection part, after power-supply controller of electric 304 receives described mode select signal, keep computer power supply unit 302 and reader power supply unit 303 output signals.Simultaneously, power-supply controller of electric 304 also needs to operating computer main board sending mode switching signal, after computer main board receives this signal, closes the signal to 321 outputs of LCD device electric supply module, and it is stopped to LCD 306 power supplies.Simultaneously, reader 307 is opened the signal of class paper display screen supply module 331, at this moment, described reader 307 is as the slave unit and the External memory equipment of computer 305, can receive the vision signal that computer main board transmits from external interface, the video signal conversion that embedded microcontroller in the reader 307 will import into is the input signal of acceptable general 16/18 the LCD interface of class paper display screen controller in the reader 307, by class paper display screen controller this general 16/18 LCD signal is converted into the electric signal that can drive class paper display screen 208, computer interface is shown on the class paper display screen, thereby finish the mode switch process.
For another example, need be when first mode of operation switches to second mode of operation, can use the soft-key button trigger mode handover event on the computer operating system user interface, soft-key button belongs to a condition managing application program in the computer operating system, click the back and produce the incident that trigger mode is switched, the computer main board changeover program that promptly brings into operation, the handoff procedure of triggering is the same.
In addition, if described computer 305 has time writer touch-control system function, then can also hit described LCD 306 and come the trigger mode handover event, the computer main board changeover program that promptly brings into operation by the time writer contact, detailed process is similar to the above, is not described in detail at this.
Need to prove, under second mode of operation, computer main board is closed video module, and vision signal is sent to embedded microcontroller by described control interface, the computer picture is shown on the class paper display screen, thereby can further reduce power consumption.
Otherwise, switching to first mode of operation from second mode of operation if desired, then can finish by hardware and software mode similar to the above equally.
Switch to the 3rd mode of operation from second mode of operation if desired, equally also can realize by the hardware and software mode.
Such as, need be when second mode of operation switches to the 3rd mode of operation, produce mode select signal by described mode selection part, after power-supply controller of electric 304 receives described mode select signal, make the operating system on the computer main board carry out bolt down procedure, when system closes fully the computer main board state detection signal put low, power-supply controller of electric 304 monitor this detection signal put low after, to computer power supply unit 302 output inhibit signals, the power supply that computer power supply unit 302 disconnects computer 305.Power-supply controller of electric 304 is simultaneously to exporting a reset (resetting) signal based on the embedded microcontroller in the double screen hand-held device of demonstration of class paper and liquid crystal display, embedded microcontroller restarts, enter reader user interface, at this moment, embedded microcontroller can only be visited the memory device on electric paper books ground.
Certainly, the triggering of above-mentioned handoff procedure also can realize that concrete handoff procedure is similar to the above by the generation of the soft-key button in the computer operating system or by the electromagnetic antenna of electromagnetism stylus and LCD 306 1 sides.
Switch back first mode of operation from the 3rd mode of operation if desired, still can realize by soft, hardware mode.If the employing hardware mode is selected first mode of operation by described mode selection part, 304 pairs of computer power supply unit 302 output signals of power-supply controller of electric, this moment, computer main board began to work on power, and each chip of initialization and interface start the operating system.Simultaneously, the embedded microcontroller of power-supply controller of electric 304 in reader 307 sends the reset signal, will operate in the state of slave after embedded microcontroller restarts.
Need to prove, in mode switch, for avoiding various mode switch mode (hardware modes, soft-key button or stylus mode) between produce conflict, power-supply controller of electric 304 is in case when receiving any mode switch request, shield the signal data that other requests produce immediately, in a single day request such as software pattern arrives power-supply controller of electric 304, power-supply controller of electric 304 at first shields the mode switch request of other any kind ofs, and then execution pattern blocked operation, finish up to mode switch, shielding is removed in the normal back of the operation detected state of computer main board and embedded microcontroller.Even two requests arrive simultaneously, also can be by the mode value of comparison of request, select the operational mode of power saving to start, such as carrying out according to the order of the 3rd mode of operation＞second mode of operation＞first mode of operation.If the state that the mode switch request will be switched equals current running status through power-supply controller of electric 304 after relatively, then power-supply controller of electric 304 does not produce any blocked operation, continues the arrival of standby mode switching signal.
Certainly, the embodiment of the invention is not limited in above-mentioned this several mode of operations and conversion regime thereof, according to application need, other mode of operations can also be set.And the switching between various mode of operations also can adopt other modes to realize.
The double screen hand-held device based on demonstration of class paper and liquid crystal display of the embodiment of the invention organically combines the relatively independent control system of two covers, and both advantages are shared, the shortcoming complementation.Computer part and reader partly both can independent operatings, also can cooperating operation.Reader is both as the slave of computer, again as the demonstration output device of computer.Both the computer repertoire can be realized, and the long-time demand of reading of user can be satisfied again.
The shared cover power-supply system of two cover control system is shared the high capacity power supply, has saved electric energy, and the stand-by time when using as the double screen hand-held device based on demonstration of class paper and liquid crystal display can be doubled and redoubled, and reaches one month even the longer time.
Showing and the double screen hand-held device of liquid crystal display of the embodiment of the invention based on class paper, structurally can do very small and exquisite frivolously, be easy to carry, lightly, be fit to go on business, long-term outdoor study, military's use.
More than the embodiment of the invention is described in detail, used embodiment herein the present invention set forth, the explanation of above embodiment just is used for help understanding device and method of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (12)
1. one kind shows based on class paper and the double screen hand-held device of liquid crystal display, comprising: have the reader of class paper display screen and have the computer of LCD, it is characterized in that,
The shared cover power-supply system of described reader and described computer, described reader is connected with described computer by control interface.
2. equipment according to claim 1 is characterized in that, described power-supply system comprises:
The computer power supply unit, being used for is separately described computer and LCD device electric supply thereof;
The reader power supply unit, being used for is separately the power supply of described reader and class paper display screen thereof;
Power-supply controller of electric is used for showing and the mode of operation of the double screen hand-held device of liquid crystal display based on class paper according to described, controls described computer power supply unit and described reader power supply unit and powers.
3. equipment according to claim 2, it is characterized in that, described mode of operation comprises: first mode of operation, second mode of operation and the 3rd mode of operation, in first mode of operation, described computer power supply unit is described computer and LCD device electric supply thereof, and described reader power supply unit is described reader power supply; Under second mode of operation, described computer power supply unit is described computer power supply, and described reader power supply unit is described reader and the power supply of class paper display screen thereof; Under the 3rd mode of operation, described reader power supply unit is described reader and the power supply of class paper display screen thereof.
4. equipment according to claim 2 is characterized in that, also comprises:
Mode selection part is used to select describedly show and the mode of operation of the double screen hand-held device of liquid crystal display based on class paper.
5. equipment according to claim 4 is characterized in that, described mode selection part is specially: button or dial.
6. equipment according to claim 4 is characterized in that, described mode selection part is the soft-key button of computer operating system.
7. equipment according to claim 4 is characterized in that, described mode selection part selects mode of operation to be specially: click the mode of operation that described LCD or class paper display screen are selected described equipment by the electromagnetism stylus.
8. the equipment of stating according to claim 3 is characterized in that,
Described computer comprises: computer main board, described computer main board comprise CPU and system controller line concentration chip, comprise video module in the described system controller line concentration chip, and the vision signal that is used for obtaining from CPU outputs to described LCD;
Described reader comprises: the embedded microcontroller that is used for outputting video signal; Be used for the vision signal of described embedded microcontroller output is converted to the class paper display screen controller of the signal that drives described class paper display screen;
Under second mode of operation, described computer main board is closed described video module, and vision signal is sent to described embedded microcontroller by described control interface.
9. equipment according to claim 8 is characterized in that, described reader also comprises: the hand-written controller of electromagnetic antenna and electromagnetism, wherein:
Described electromagnetic antenna is used for receiving electromagnetic signals;
The hand-written controller of described electromagnetism is used for that described electromagnetic signal is converted to rs 232 serial interface signal and outputs to described computer main board or embedded microcontroller, so that described computer and described reader are realized the style of writing control function.
10. equipment according to claim 9 is characterized in that, described electromagnetic antenna is separately positioned on the LCD and the class paper display screen back side.
11. according to each described equipment of claim 1 to 10, it is characterized in that described control interface is specially: USB interface, IEEE1394 interface, Ethernet Ethernet interface, standard VGA interface or mini-PCIE.
12., it is characterized in that the positional structure of described class paper display screen and described LCD is a bilateral structure according to each described equipment of claim 1 to 10.
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| CN103064470A (en) * | 2011-10-22 | 2013-04-24 | 李帜 | Dual-screen tablet personal computer |
| CN102495690A (en) * | 2011-11-24 | 2012-06-13 | 汉王科技股份有限公司 | Touch detection method, device and mobile terminal |
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| CN103472906A (en) * | 2013-09-25 | 2013-12-25 | 小米科技有限责任公司 | Method and device for switching double screens of terminal, and terminal equipment |
| CN106950764A (en) * | 2017-04-06 | 2017-07-14 | 深圳天珑无线科技有限公司 | display panel, terminal and display control method |
| CN108962149A (en) * | 2017-05-17 | 2018-12-07 | 北京点石经纬科技有限公司 | Double-screen electronic facility for study and its display methods |
| CN107133007A (en) * | 2017-05-22 | 2017-09-05 | 董津沁 | A kind of double screen equipment |
| CN109976504A (en) * | 2019-04-01 | 2019-07-05 | 联想(北京)有限公司 | A kind of electronic equipment and control method |
| CN110209262A (en) * | 2019-05-31 | 2019-09-06 | 联想(北京)有限公司 | A kind of electronic equipment and processing method |
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