CN102298419A - Mobile terminal with double display screens - Google Patents
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- CN102298419A CN102298419A CN2011102591214A CN201110259121A CN102298419A CN 102298419 A CN102298419 A CN 102298419A CN 2011102591214 A CN2011102591214 A CN 2011102591214A CN 201110259121 A CN201110259121 A CN 201110259121A CN 102298419 A CN102298419 A CN 102298419A
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Abstract
The invention discloses a mobile terminal with double display screens. The mobile terminal comprises a main shell, an auxiliary shell, a central processing unit (CPU), a first display screen, a second display screen and an electromagnetic plate, wherein the main shell and the auxiliary shell rotate relatively; the CPU is arranged in the main shell; the first display screen and the second display screen are respectively arranged on the upper surfaces of the main shell and the auxiliary shell, and the first display screen and the second display screen are respectively connected with the CPU to correspond to different display applications; the electromagnetic plate is arranged on the back of the first display screen of the main shell and jointed to the first display screen; the electromagnetic plate is connected with the CPU and used for detecting an input locus and sending the input locus to the CPU; and the CPU is used for selecting the current used display screen and sending display data to the current used display screen. The mobile terminal with double display screens has the advantages of low cost, good body heat dissipation effect, high system stability and long service life.
Description
Technical field
The present invention relates to a kind of portable terminal, particularly, relate to a kind of double-display screen portable terminal.
Background technology
Electric ink screen (EPD) has clear superiorities such as reading with great visual angle, environmental protection, vision protection, super low-power consumption as studying up the display screen that electronic edition books, document are used.But ordinary electronic ink screen can only support 16 rank gray scales to show at present, even high-end color electric ink shields its color saturation also far away not as good as LCD Panel, and the maximum shortcoming of electric ink screen is exactly that refresh rate is slow, can't satisfy the application demand that the user watches video, recreation, real-time, interactive class.
And the panel computer of being furnished with large-sized liquid crystal display (LCD) has begun to enter consumer electronics market as a kind of emerging portable mobile termianl, compare panel computer with mobile phone and have higher handling property, more the picture effect of high-quality and good man-machine interaction mode; Has outstanding travelling performance and compare it, longer cruising time, the more outward appearance of fashion and the more application of diversification with common computer; But the panel computer that adopts LCDs in applications such as carry out that large volume document is read, write its exist power consumption height, heating greatly, the stand-by time outstanding problem of lacking, dig-in screen for a long time and can cause user's visual fatigue, therefore in the function application facet not high to response time requirement, LCDs has been compared obvious deficiency with the electric ink screen.
Many in the market companies have released the double screen solution of portable mobile terminal, but its double screen that adopts mostly is two LCDs greatly, the scheme or the product that have LCDs and electric ink screen simultaneously then seldom come out, and be existing at present and be described below with the approaching double screen portable terminal scheme of the present invention:
Complete machine only adopts a casing, the one side of casing is placed LCDs, another side is placed the electric ink screen, adopt a processor to control two display screens respectively, wherein CPU links to each other with the electric ink screen controller by USB interface, image with control electric ink screen shows that the standard video interface links to each other with LCDs on the sheet of CPU employing simultaneously, thereby reaches two screen displays of a CPU control.The mainboard of complete machine and battery are sandwiched in the middle of two display screens; This equipment does not have physical keyboard, only adopts the electromagnetism handwriting device to carry out man-machine interaction; Fuselage interior has two magnetic boards, be close to LCDs and electric ink screen respectively after, manipulate for two display screens.
Though this portable terminal combines LCDs and electric ink screen, realized the mutual supplement with each other's advantages of two kinds of screens, but it has following defective: adopt two magnetic boards to use for two display screens respectively, because the user can not use two display screens simultaneously, once can only select one, so both increase the complete machine Material Cost, and can make the magnetic board utilization factor low again, be unfavorable for reducing fuselage thickness simultaneously; And this portable terminal can't add physical keyboard, can't provide feel literal import pathway fast preferably for the user; This portable terminal be with system board and battery folder in the middle of two display screens, rather than be close to shell, will cause difficulty to the mainboard heat radiation like this, make heat in fuselage, accumulate, cause temperature to raise, influence product stability.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of with LCDs and electric ink screen combine, the double screen portable terminal of a shared magnetic board.
Double-display screen portable terminal of the present invention comprises: counterrotating main case and subsidiary engine shell, and this double-display screen portable terminal also comprises: be arranged on interior system board of main case and the CPU on the system board; Be separately positioned on first display screen and second display screen of the upper surface of main case and subsidiary engine shell, first display screen links to each other with CPU respectively with second display screen; Be arranged on main case first display screen the back side and be close to the magnetic board of first display screen, described magnetic board links to each other with CPU, is used to detect input trajectory and the input trajectory coordinate data is sent to CPU; Wherein, CPU is used to select presently used display screen and sends video data to presently used display screen, and, CPU also judges the operation that the user carries out by the handwriting tracks coordinate information that magnetic board receives, carrying out function corresponding handles, and on display screen, carry out Display Realization, control this portable terminal.
In one embodiment, first display screen is a LCDs, and second display screen is the electric ink screen.
In another embodiment, first display screen is the electric ink screen, and second display screen is a LCDs.
In one embodiment, when with the subsidiary engine cap to the positive top of main case when using second display screen, CPU heightens the induction sensitivity of magnetic board to writing pencil, makes magnetic board be enough to sense the signal of the time writer that moves above second display screen; When using first display screen, CPU turns down the induction sensitivity of magnetic board to writing pencil, makes magnetic board only can sense the signal of the time writer that moves above first display screen.In one embodiment, system board is provided with respectively electric ink screen power supervisor, the LCDs power supervisor that links to each other with CPU in the main case, is used for being respectively electric ink screen and LCDs and powers under the control of CPU.
In one embodiment, the outside of electric ink screen power supervisor and LCDs power supervisor is provided with metallic shield.
In one embodiment, also be provided with the membrane keyboard that links to each other with CPU on the opposite one side of the not electric ink screen of the casing that is provided with electric ink screen, when the use LCDs, this membrane keyboard is used for inputting word information.
In one embodiment, on the one side that is provided with the electric ink screen of the casing that is provided with the electric ink screen, also be provided with at least one button, be used for the electric ink screen is operated.
In one embodiment, main case or subsidiary engine shell are provided with the range sensor that links to each other with CPU, and what CPU judged current use by this range sensor is first display screen or second display screen.
In one embodiment, this portable terminal also comprises the rotating shaft web member, main case and subsidiary engine shell are provided with a groove on interconnective side, be provided with hollow rotating shaft on two sidewalls of each groove, one end of hollow rotating shaft is fixed on the sidewall, the other end inserts in the rotating shaft web member that is arranged in the groove, thereby main case and subsidiary engine shell are rotatably connected, and hollow rotating shaft also is arranged with rubber ring outward.
In one embodiment, this portable terminal also comprises the rotating shaft web member, main case and subsidiary engine shell are provided with a lug boss on interconnective side, be provided with hollow rotating shaft on two sidewalls of each lug boss, one end of hollow rotating shaft is fixed on the sidewall, the other end inserts in the rotating shaft web member, thereby main case and subsidiary engine shell are rotatably connected, and hollow rotating shaft also is arranged with rubber ring outward.Connecting line between main case and the subsidiary engine shell enters in the rotating shaft web member by the hollow rotating shaft of a casing among main case and the subsidiary engine shell, and passes by the hollow rotating shaft of another casing.
In one embodiment, the arranged outside at described rotating shaft web member has a groove.Be provided with the style of writing switch that is connected with CPU in this groove, when writing pencil was put into groove, the style of writing switch closure also sent signal to CPU, and CPU is according to this signal at stop magnetic board; When writing pencil was taken out in a groove, the style of writing switch disconnected and sends signal to CPU, and CPU opens magnetic board according to this signal.
Double-display screen portable terminal of the present invention has the function of panel computer, notebook computer and electric paper book simultaneously concurrently.And only use a magnetic board, and reduced cost, saved the fuselage interior space; Because circuit board is arranged on separately in the casing, thereby radiating effect is better, has improved the stability of system; The introducing of membrane keyboard has promoted user's use experience; The two shaft connecting modes that adopt between two casings make the user to switch between two display screens easily, and have prolonged the serviceable life of the connecting line between two casings.
Description of drawings
Fig. 1 is the perspective view of double-display screen portable terminal of the present invention;
Fig. 2 is the structural representation of the Circuits System of double-display screen portable terminal of the present invention;
Fig. 3 is the schematic cross-section of double-display screen portable terminal of the present invention, and wherein, the subsidiary engine cap is on main case;
Fig. 4 is the synoptic diagram that double-display screen portable terminal of the present invention is 180 ° of expansion;
Fig. 5 is the local enlarged diagram of the twin shaft syndeton of double-display screen portable terminal of the present invention;
Fig. 6 is the local enlarged diagram of another kind of scheme of the twin shaft syndeton of double-display screen portable terminal of the present invention.
Embodiment
Hereinafter will technical scheme of the present invention be described by preferred implementation.
Fig. 1 is the perspective view of double-display screen portable terminal of the present invention.As shown in Figure 1, whole fuselage comprises main case 101 and subsidiary engine shell 102 two parts altogether.For reducing fuselage weight, reduce influence simultaneously to the shielding of fuselage interior aerial signal, two casing materials all should adopt plasticity good engineering plastics.Be respectively arranged with first display screen and second display screen on the upper surface of main case 101 and subsidiary engine shell 102, first display screen links to each other with CPU respectively with second display screen, and first display screen is applicable to different display applications with second display screen.To be that LCDs, second display screen are that the electric ink screen describes as an example hereinafter with first display screen.
The upper surface of main case 101 is provided with LCDs 104, LCDs 104 back sides also are close to LCDs 104 and are provided with magnetic board 117, also be provided with mainboard and some other components and parts (as power supply, storer, WIFI communication facilities, audio ﹠ video equipment etc.) in the main case 101, mainboard is provided with CPU (central processing unit); And the upper surface of subsidiary engine shell 102 is provided with electric ink screen 103, wherein, LCDs 104 is applicable to non-text class application (for example: refresh rates such as video, recreation require to use faster), but also videotex class content, and electric ink screen 103 is applicable to that mainly the text class (for example: the slower application of refresh rate such as document reading) uses.Because the subsidiary engine shell is thinner, intensity is protected in the electric ink screen protection of glass-based may be not enough, so the electric ink screen preferably adopts flexible electronic ink screen.Because two screens are to be used for difference in functionality, so the user once only can adopt a display screen, two screens need not to carry out simultaneously the picture refreshing action.When a screen refreshes, another screen should be in dormancy or off-position, therefore CPU selects presently used display screen and sends video data to presently used display screen, and, CPU also judges the operation that the user carries out by the handwriting tracks coordinate information that magnetic board receives, carry out function corresponding and handle, and on display screen, carry out Display Realization.
The used magnetic board of this double screen portable terminal is made up of induction zone and non-induction zone two parts: induction zone is made up of orthogonal transmitting coil and receiving coil.The magnetic board controller produces square wave, the input transmitting coil in the electromagnetic wave of the launching input writing pencil circuit, makes the interior antiresonant circuit of writing pencil produce resonance, the electromagnetic wave that resonance generates is received by the receiving coil of magnetic board, and the simulating signal that receives is admitted to the magnetic board controller.The size of induction zone should be measure-alike with the entire display screen curtain, makes writing pencil optional position on display screen move and can both be the perception of induction zone institute.Zone beyond the induction zone is non-induction zone, be mainly used in and place magnetic board controller and peripheral circuit thereof, this processor is mainly used in the simulating signal on the receiving coil is carried out analog to digital conversion, draw writing pencil accurate coordinates information by the digital signal that obtains after the conversion is carried out computing, and send to CPU.
In Fig. 1, subsidiary engine shell 102 upper surfaces (promptly being provided with a side of electric ink screen 103) can add one or more buttons 108, are used to control the operation of electric ink screen.Button 108 can be the mechanical key identical with the casing material.Generally speaking, be to guarantee that the basic functions such as document reading of electric ink screen 103 are used, minimumly should lay 4 function keys, wherein two key is determined in a conduct as page turning key, one is return key, be used for electric paper book page turning, operation such as return.Keypress function can suitably increase, but final function setting should reach following purpose: the user does not use time writer, only depends on the button 108 in subsidiary engine shell 102 fronts can finish the major function operation of electric ink screen 103.These four buttons are corresponding with the non-induction zone of magnetic board 107.
In Fig. 1, the lower surface of subsidiary engine shell 102 (being the back side), an opposite side that promptly is provided with electric ink screen 103 also is provided with membrane keyboard 120, this membrane keyboard 120 adopts high-grade medical grade silicone material, and it has good rebound characteristics, quiet knock noiseless, soft-touch is comfortable, the feel cordiality, and volume is slim, is fit to very much ultrathin mobile terminal equipment and uses.Among the present invention with this membrane keyboard 120 by the back side of adhesive securement at subsidiary engine shell 102.When rotation subsidiary engine shell 102, make when the back side of subsidiary engine shell 102 and main case 101 fronts are 120 ° of left and right sides angles, this moment, LCD Panel 104 and membrane keyboard 120 were formed a miniature notebook system, and the user can pass through membrane keyboard 120 quick inputting word informations.Rotate to main case 101 back sides and work as subsidiary engine shell 102, when complete machine was used as the panel computer use, then system closed membrane keyboard 120 automatically, prevented the false triggering operation.Electric ink screen and the back-to-back placement of membrane keyboard in subsidiary engine shell 102 simultaneously, the engineering plastics fender 119 (shown in Figure 3) of a non-metallic material should be added in the centre, does not produce than large deformation in use with protection electric ink screen and membrane keyboard.For convenient electromagnetic plate investigative range can evenly cover entire display screen, subsidiary engine shell 102 vertical axial sections can be made and the consistent rectangle of main case vertical axial sectional width.If relatively pay attention to complete machine symmetry aesthetic property, can consider main case 101 and subsidiary engine shell 102 vertical axial section shapes can all be done wedgewise, the thickness difference of thickness and thinnest part is unsuitable excessive, guarantees that as far as possible the magnetic board investigative range can evenly cover entire display screen.
Fig. 2 is the structural representation of the Circuits System of double-display screen portable terminal of the present invention.As shown in Figure 2, total system is controlled by high-performance central processing unit (CPU), and this processor requirement possesses the ability of supporting LCDs 104 and electric ink screen 103.Storer in the total system, power supply managing unit, audio ﹠ video equipment and WIFI communication facilities and common embedded device are similar, and these equipment all can be positioned at main case.
Hereinafter the timesharing to electric ink screen and LCDs shows that control describes:
Magnetic board 117 (shown in Figure 3) is placed in the main case, is close to the back side of LCDs 104, and timesharing is carried out pen control operation for two screens.Can whether be positioned at a groove by writing pencil and open and close magnetic board 117 automatically.Particularly, can be at an arranged outside groove of rotating shaft web member 107, be provided with the style of writing switch of the opening and closing that are used to control magnetic board 117 in the groove.When writing pencil 113 is put into groove, style of writing switch closure and send a low level look-at-me then to CPU, CPU closes magnetic board 117 automatically according to this low level look-at-me, saves electric weight; And after writing pencil 113 is taken out in the groove, the style of writing switch disconnects and sends a high level look-at-me to CPU, CPU opens magnetic board 117 according to this level look-at-me, begin to receive the motion track information of magnetic board 117 top time writers 113, and the motion track of time writer 113 is presented on the display screen that is using, simultaneously this trace information is carried out information Recognition and handle, at last result is shown, and can realize control presently used display screen.
The viewing area of LCDs 104 and electric ink screen 103 will overlap in vertical direction with the induction zone of magnetic board 117, to guarantee all to carry out hand-written operation Anywhere in the viewing area.Front at main case can be provided with electric capacity navigation key 105, and this navigation key is communicated by letter with CPU by serial bus, can stir up and down LCDs 104 display pages, and energy fill order, double-click are user-friendly simultaneously.
The induction sensitivity setting of 117 pairs of writing pencils of magnetic board can not be excessive or too small, too small meeting makes magnetic board 117 can't perceive writing pencil 113 motion tracks, excessively then be easy to generate false triggering operation, so the sensitivity of magnetic board 117 should be adjusted in the OK range, it can just be perceived be positioned at the magnetic field that 1mm-10mm place, display screen top writing pencil 113 nibs produce.When perceived distance was made as 1mm, its false triggering probability was very low, but can not realize that unsettled the streaking of writing pencil is page-turnable or the effect that triggers the menu function key, only can realize handwriting functions; When perceived distance is made as 10mm, the unsettled triggering effect of realization writing pencil that can be outstanding, but the false triggering rate can be very high.Perceived distance is made as 5mm then can realizes the unsettled triggering effect of good writing pencil, can keep lower false triggering rate again, preferentially adopt this distance value.
Because magnetic board 117 needs timesharing to use for two screens, which screen what therefore be necessary definite current use is.CPU is LCDs 104 or electric ink screen 103 by what be installed in that miniature range sensor 109 (in the embodiment of Fig. 1, range sensor 109 is positioned at the front of main case) on main case 101 or the subsidiary engine shell 102 judges the current use of user.Range sensor 109 links to each other with CPU and himself need send the invisible light of a certain frequency, can be received by the photodiode on the range sensor 109 after running into barrier reflection, judges the distance of himself and barrier according to receiving light intensity.
When the user is covered on main case 101 (as shown in Figure 3) with subsidiary engine shell 102, prepare to use electric ink to shield at 103 o'clock, the subsidiary engine shell 101 that the light that the range sensor 109 at main case 102 back sides sends can be pressed close to reflects back, and reflective light intensity surpasses preset value, this moment, range sensor 109 meetings sent look-at-me to CPU, make CPU know that the employed screen of user is an electric ink screen 103, automatically close LCDs 104 display modules immediately, display message before will closing simultaneously on the LCDs 104 is preserved, and still can reduce the display image of last time after opening LCDs 104 again.
CPU also will send instruction to the magnetic board controller by serial ports when closing LCDs 104, heighten the induction sensitivity of magnetic board controller by software to writing pencil in the induction zone, make magnetic board be enough to see through LCDs 104 and electric ink screen 103 and perceive and be positioned at electric ink and shield the magnetic field that 5mm place, 103 top writing pencil 113 nibs produce, promptly sense the user and shield handwriting tracks on 103 at electric ink.
If what adopted in two casing cross sections is wedge structure, when the subsidiary engine cap is on main case, the sensitivity setting of magnetic board should guarantee that magnetic board is enough to see through LCDs 104 and subsidiary engine shell 102 thickness and perceives and be positioned at electric ink and shield the magnetic field that 5mm place, 103 top writing pencil 113 nibs produce, and shields handwriting tracks on 103 thereby sense the user at electric ink.Otherwise, when the user rotates to main case 101 back sides with subsidiary engine shell 102, when portable terminal is used as panel computer, as shown in Figure 4, range sensor 109 tops are with clear, the light that it sent will can not be reflected, CPU then knows that according to the result of detection of range sensor 109 screen that the user uses is LCDs 104, then system closes electric ink screen power supervisor automatically, demonstration is switched to LCDs 104, automatically the image frame of being preserved before recovering simultaneously to close last time, this moment, CPU also will send instruction to the magnetic board controller, make magnetic board controller change software parameter value, improve received signal level and trigger thresholding, only signal amplitude is higher than the received signal that triggers thresholding and is considered as useful signal, thereby reduce the sensitivity of magnetic board received signal, shorten magnetic board 117 to the time writer distance of reaction, perceive the magnetic field that 5mm place, LCDs 104 top writing pencil nib produces as long as make it be enough to see through LCDs 104, promptly only sense the handwriting tracks of user on LCDs 104, the maloperation that can avoid too high trigger sensitivity to bring like this influences, thereby can realize the purpose of the shared magnetic board 117 of double screen.
The internal connection line of double-display screen portable terminal of the present invention preferably adopts Du Pont's line, but because Du Pont's line can not directly directly link to each other with FPC (flexible PCB) interface line that electric ink shields on 103 with LCDs 104, so need carry out interface conversion, the fixed interface seat 116 of used FPC is placed on the interior little circuit board 112 of subsidiary engine shell, simultaneously the interface of four buttons 108 on the subsidiary engine shell and membrane keyboard 120 also should be fixed on this circuit board, and the position of this circuit board 112 should be positioned at button 108 belows of subsidiary engine shell 102, and when subsidiary engine shell 102 covered on the main case 101, circuit board 112 was corresponding to the non-induction zone of magnetic board 117.The FPC interface of electric ink screen 103 is connected on this fixed interface seat 116, and the signal wire on the FPC interface line, power lead are forwarded to Du Pont's line interface 122 together with button 108 and the membrane keyboard 120 signal wires cabling by little circuit board 112, and link to each other with mainboard by Du Pont's line 114, thereby realize being electrically connected of subsidiary engine shell 102 and main case 101.
In another embodiment, main case and subsidiary engine shell are provided with a lug boss on interconnective side, has a rotating shaft web member respectively on two sidepieces of lug boss, and be provided with hollow rotating shaft on two sidewalls of each lug boss, one end of hollow rotating shaft is fixed on the sidewall, the other end inserts the rotating shaft web member, thereby main case and subsidiary engine shell are rotatably connected, referring to accompanying drawing 6.In this embodiment, Du Pont's line between main case and the subsidiary engine shell also can enter in the rotating shaft web member by the hollow rotating shaft of a casing, hollow rotating shaft from another casing passes again, thereby make Du Pont's line neither influence the screen rotation, can prolong simultaneously Du Pont's line serviceable life again, be unlikely to because the screen number of revolutions too much causes signal wire to fracture.
In order to make two casings keep the angle of rotation constant, need in all metal hollow rotating shafts 121, install rubber ring additional, the outer shroud of this rubber ring is adhesively fixed on the rotating shaft web member, 121 of metal hollow rotating shafts penetrate ring in the rubber ring, and can rotate at interior ring, but because the friction of rubber ring and metal hollow rotating shaft 121 is very big, cause the moment of torsion of rotating shaft to increase, make subsidiary engine shell 102 free not to be rotated around axle, need to rotate under external force, thereby the angle that makes two casings can keep the user to rotate is constant, realizes miniature notebook function.
Though above described the embodiment that the electric ink screen is set on LCDs, the subsidiary engine shell is set on the main case, one skilled in the art would recognize that by some and revise, the position of LCDs and electric ink screen can be exchanged mutually.
Portable terminal of the present invention has the function of panel computer, notebook computer and electric paper book simultaneously concurrently.The present invention adopts main case to add the structural design pattern of subsidiary engine shell, and LCDs is placed in the main case; And the electric ink screen is placed in the subsidiary engine shell, its electric ink screen is placed in the same way with LCDs, simultaneously a magnetic board is put into and is close to the LCDs back side in the main case below the LCDs, switch employed display screen by rotation subsidiary engine shell, this method can solve the problem of the time sharing shared magnetic board of two screens, the scheme that each screen that before adopts respectively is equipped with an electromagnetic screen is compared and is greatly reduced cost, has also saved the fuselage interior space simultaneously.
Main case inside is used to lay circuit board and battery, because the one side of circuit board is pressed close to the housing of main case, it is better that two schemes of shielding the centre that before circuit board are clipped in are compared radiating effect, prevent the accumulation of heat at inner fuselage, cause system's fluctuation of service, the back mounted membrane keyboard of subsidiary engine shell can bring better information input feel to the user simultaneously.
The two shaft connecting modes that adopt between main case and the subsidiary engine shell make the subsidiary engine shell to carry out 360 ° of rotations around main case, make the user to switch between two display screens.The data bus connection employing between the mainboard of subsidiary engine shell and main case simultaneously is connected from Du Pont's line that hollow rotating shaft passes, make the subsidiary engine shell in rotary course, Du Pont's line does not have than the wide-angle bending, thereby prolonged the serviceable life of Du Pont's line greatly, simultaneously can rotation cause difficulty to casing because of the existence of Du Pont's line yet.
Need to prove that at last the above only is a better embodiment of the present invention, rather than to the qualification of technical solution of the present invention, any the technology of the present invention feature being equal to of being done replaced or corresponding improvement, still within protection scope of the present invention.
Claims (13)
1. double-display screen portable terminal, comprising: counterrotating main case and subsidiary engine shell is characterized in that this double-display screen portable terminal also comprises:
Be arranged on the CPU in the main case;
Be separately positioned on first display screen and second display screen of the upper surface of main case and subsidiary engine shell, first display screen links to each other with CPU respectively with second display screen;
Be arranged on main case first display screen the back side and be close to the magnetic board of first display screen; Described magnetic board links to each other with CPU, is used to detect input trajectory and input trajectory is sent to CPU;
Wherein, CPU is used to select presently used display screen and sends video data to presently used display screen.
2. double-display screen portable terminal as claimed in claim 1 is characterized in that, first display screen is a LCDs, and second display screen is the electric ink screen; Perhaps, first display screen is the electric ink screen, and second display screen is a LCDs.
3. double-display screen portable terminal as claimed in claim 1 or 2 is characterized in that,
When with the subsidiary engine cap to first display screen when using second display screen, CPU heightens the induction sensitivity of magnetic board to writing pencil, makes magnetic board be enough to respond to the signal of the time writer that moves above second display screen;
When using first display screen, CPU turns down the induction sensitivity of magnetic board to writing pencil, makes magnetic board only can sense the signal of the time writer that moves above first display screen.
4. double-display screen portable terminal as claimed in claim 2, it is characterized in that, be provided with respectively the electric ink screen power supervisor, the LCDs power supervisor that link to each other with CPU in the main case in the non-induction zone of magnetic board, be used under the control of CPU, being respectively electric ink screen and LCDs and power.
5. double-display screen portable terminal as claimed in claim 4 is characterized in that, the outside of electric ink screen power supervisor and LCDs power supervisor is provided with metallic shield.
6. double-display screen portable terminal as claimed in claim 2, it is characterized in that, also be provided with the membrane keyboard that links to each other with CPU on the back side face of the electric ink screen of the casing that is provided with electric ink screen, when the use LCDs, this membrane keyboard is used for inputting word information.
7. double-display screen portable terminal as claimed in claim 1 is characterized in that, also is provided with at least one button on the one side that is provided with the electric ink screen of the casing that is provided with the electric ink screen, is used for the electric ink screen is operated.
8. double-display screen portable terminal as claimed in claim 1 is characterized in that, main case or subsidiary engine shell are provided with the range sensor that links to each other with CPU, and what CPU judged current use by this range sensor is first display screen or second display screen.
9. as each described double-display screen portable terminal of claim 1-8, it is characterized in that, this portable terminal also comprises the rotating shaft web member, main case and subsidiary engine shell are provided with a groove on interconnective side, be provided with hollow rotating shaft on two sidewalls of each groove, an end of hollow rotating shaft is fixed on the sidewall, and the other end inserts in the rotating shaft web member that is arranged in the groove, thereby main case and subsidiary engine shell are rotatably connected, and hollow rotating shaft also is arranged with rubber ring outward.
10. as each described double-display screen portable terminal of claim 1-8, it is characterized in that, this portable terminal also comprises the rotating shaft web member, main case and subsidiary engine shell are provided with a lug boss on interconnective side, be provided with hollow rotating shaft on two sidewalls of each lug boss, an end of hollow rotating shaft is fixed on the sidewall, and the other end inserts in the rotating shaft web member, thereby main case and subsidiary engine shell are rotatably connected, and hollow rotating shaft also is arranged with rubber ring outward.
11. as claim 9 or 10 described double-display screen portable terminals, it is characterized in that, connecting line between main case and the subsidiary engine shell enters in the rotating shaft web member by the hollow rotating shaft of a casing among main case and the subsidiary engine shell, and passes by the hollow rotating shaft of another casing.
12. described double-display screen portable terminal as claimed in claim 9 is characterized in that, in the arranged outside of described rotating shaft web member a groove is arranged.
13. double-display screen portable terminal as claimed in claim 12 is characterized in that, is provided with the style of writing switch that is connected with CPU in this groove, when writing pencil was put into groove, the style of writing switch closure also sent signal to CPU, and CPU is according to this signal at stop magnetic board; When writing pencil was taken out in a groove, the style of writing switch disconnected and sends signal to CPU, and CPU opens magnetic board according to this signal.
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| CN2011102591214A CN102298419A (en) | 2011-09-02 | 2011-09-02 | Mobile terminal with double display screens |
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| CN2011102591214A CN102298419A (en) | 2011-09-02 | 2011-09-02 | Mobile terminal with double display screens |
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| CN103309560A (en) * | 2013-06-08 | 2013-09-18 | 东莞宇龙通信科技有限公司 | Multi-interface information display method and terminal |
| CN103561143A (en) * | 2013-10-30 | 2014-02-05 | 惠州Tcl移动通信有限公司 | Intelligent terminal with electronic ink display device |
| CN103853314A (en) * | 2012-11-28 | 2014-06-11 | 联想(北京)有限公司 | Automatic control method and device |
| CN104333619A (en) * | 2014-10-30 | 2015-02-04 | 合肥京东方光电科技有限公司 | Portable display device |
| CN105205041A (en) * | 2015-09-28 | 2015-12-30 | 努比亚技术有限公司 | Text editing method and device for mobile terminal and mobile terminal |
| CN105242757A (en) * | 2015-11-09 | 2016-01-13 | 合肥宝龙达光电技术有限公司 | Connection structure of tablet personal computer and base |
| WO2016023455A1 (en) * | 2014-08-15 | 2016-02-18 | 杨蔚航 | Double-face double-screen smart mobile terminal |
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| CN107705750A (en) * | 2017-11-24 | 2018-02-16 | 常州市创联电源科技股份有限公司 | A kind of double-display screen mobile device and its power supply |
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Application publication date: 20111228 |