CN201233589Y - Double touch screen display apparatus - Google Patents
Double touch screen display apparatus Download PDFInfo
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- CN201233589Y CN201233589Y CNU2008200957817U CN200820095781U CN201233589Y CN 201233589 Y CN201233589 Y CN 201233589Y CN U2008200957817 U CNU2008200957817 U CN U2008200957817U CN 200820095781 U CN200820095781 U CN 200820095781U CN 201233589 Y CN201233589 Y CN 201233589Y
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Abstract
The utility model relates to a two-touch screen display device, which comprises a main touchpad and an auxiliary touchpad which generate analog semaphore by touch input, a main touch chip and an auxiliary touch chip which are connected with the main touchpad and the auxiliary touchpad respectively and process the analog semaphore, a baseband chip which is connected with the main touch chip and the auxiliary touch chip and sends control signals based on the processed signal, and a main screen and an auxiliary screen which are connected with the baseband chip and controlled by the control signal, wherein, the main screen is connected with the baseband chip through a shared data wire, a first chip selection signal wire and a first reset signal wire; and the auxiliary screen is connected with the baseband chip through the shared data wire, a second chip selection signal wire and a second reset signal wire. The two-touch screen display device has the advantage of convenient operation, and overcomes the defects of reciprocating switching operation creating the difficulty in operation and wasting time and labor.
Description
Technical field
The utility model relates to touch-screen, more particularly, relates to a kind of dual touch screen display device.
Background technology
Along with development of science and technology, touch-screen develops very fast as a kind of instrument.Touch screen technology is commonly used in business intelligence mobile phone, MP4, PDA and other integrated service and handles on the wireless terminal, has made things convenient for business people's operation on the one hand, also is a kind of embodiment of hommization on the other hand.But existing single touch screen operation gets up often convenient inadequately, needs the setting operation button toward contact, also needs to realize operation together by the menu of action button and touch-screen, does not have realization touch screen operation truly.While is owing to actions menu and want content displayed on a screen, and behind the click menu, content displayed will directly show, and actions menu has just disappeared, and wants to continue to operate and must switch back and forth.For example, we will see picture, can demonstrate the thumbnail preview earlier, need see which is opened the figure that clicks correspondence again and enters full figure demonstration (this moment, the thumbnail preview menu just withdrawed from), as will be again selecting the picture that to see, must turn off and to enter the thumbnail preview again after full figure shows by the thumbnail preview.Again for example we by the video software playing video file, with video file full frame after, play menu has just been hidden, and just can access play menu and operates if the operation play menu is dwindled in progress full frame video file with regard to having to.Blocked operation has back and forth like this increased difficulty to operation, wastes time and energy.
The utility model content
The technical problems to be solved in the utility model is, the defective at the touch screen operation inconvenience of prior art provides a kind of easy to operate dual touch screen display device.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of dual touch screen display device, it comprises by touching main touch pad and the secondary touch pad that input produces the simulating signal amount, touch chip with the main chip that touches that described simulating signal amount is handled that main touch pad is connected with secondary touch pad with pair respectively, the signal based on after handling that is connected with main touch chip and pair touch chip sends the baseband chip of control signal, main screen that is subjected to described control signal control that is connected with baseband chip and secondary screen, wherein main screen is by the shared data line, the first chip selection signal line and first reseting signal line are connected with baseband chip, and secondary screen is by the shared data line, the second chip selection signal line and second reseting signal line are connected with baseband chip.
In dual touch screen display device described in the utility model, described main screen is provided with 16 bit parallel data-interface NLD0-NLD16, and described secondary screen is provided with 8 bit parallel data-interface NLD0-NLD8.
In dual touch screen display device described in the utility model, described shared data line comprises that parallel data line NLD0-NLD8, reading signal lines, write signal line, RS control signal wire, pattern select signal wire and LCDID signal lines.
In dual touch screen display device described in the utility model, described baseband chip communicates by one group of Serial Peripheral Interface (SPI) with main touch chip, the secondary chip that touches.
In dual touch screen display device described in the utility model, described Serial Peripheral Interface (SPI) comprises clock signal, chip selection signal, data input signal, instruction/data selection signal and data output signal.
In dual touch screen display device described in the utility model, the main external interrupt mouth EINT1 that is provided with the trigger data transmission between chip and the baseband chip that touches, the secondary external interrupt mouth EINT5 that is provided with the trigger data transmission between chip and the baseband chip that touches.
In dual touch screen display device described in the utility model, described dual touch screen display device also comprises and is connected the main Hall chip that is used to produce first chip selection signal and second chip selection signal, secondary Hall chip with baseband chip.
In dual touch screen display device described in the utility model, described dual touch screen display device also comprises main screen backlight module and the secondary screen backlight module that is connected with baseband chip.
In dual touch screen display device described in the utility model, described main screen and main touch pad are installed together forms main touch-screen, and described secondary screen and secondary touch pad are installed together forms secondary touch-screen.
In dual touch screen display device described in the utility model, described dual touch screen display device is handset touch panel and wireless telecommunications and data processing terminal screen or MP4 touch-screen, PDA touch-screen, and described baseband chip is a device main control chip or from control chip.
Implement dual touch screen display device of the present utility model, has following beneficial effect: because dual touch screen display device of the present utility model adopts the double screen setting, cancelled action button, a screen wherein can be used as actions menu, a screen full screen display wherein needs content displayed, increase the picture displayed size, made things convenient for operation.For example, we will see picture, can demonstrate the thumbnail preview on a screen, show on another piece screen that full figure shows, do not need to close full figure and just can enter another picture full figure demonstration again from the thumbnail preview.For example we show full screen video by the video software playing video file in another menu of menu that can display the play in a menu again, need not switch back and forth, and it is convenient to operate.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the logic diagram of the utility model dual touch screen display device;
Fig. 2 is the schematic diagram of the main screen circuit of the utility model dual touch screen display device;
Fig. 3 is the schematic diagram of the pair screen circuit of the utility model dual touch screen display device;
Fig. 4 is the main schematic diagram that touches chip and peripheral loop of the utility model dual touch screen display device;
Fig. 5 is the schematic diagram that the pair of the utility model dual touch screen display device touches chip and peripheral loop;
Fig. 6 is the schematic diagram of the main screen backlight module of the utility model dual touch screen display device;
Fig. 7 is the schematic diagram of the pair screen backlight module of the utility model dual touch screen display device;
Fig. 8 is the main Hall chip of the utility model dual touch screen display device and the schematic diagram in peripheral loop;
Fig. 9 is the secondary Hall chip of the utility model dual touch screen display device and the schematic diagram in peripheral loop.
Figure 10 is the structural representation of an embodiment of the utility model dual touch screen display device.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Dual touch screen display device of the present utility model can be used for handset touch panel, MP4 touch-screen or PDA touch-screen, below will use mobile phone to describe as embodiment of the present utility model.
As shown in Figure 1, dual touch screen display device of the present utility model comprises baseband chip BIC1, main screen LCD1 that is connected with baseband chip BIC1 and secondary screen LCD2, main touch chip TPIC1 touches main touch pad TP1 and the secondary touch pad TP2 that chip TPIC2 is connected respectively with the secondary chip TPIC2 of touch and with the main chip TPIC1 that touches with pair, the touch input of main touch pad TP1 and secondary touch pad TP2 produces the simulating signal amount, be sent to baseband chip BIC1 after the processing of the main touch of process chip TPIC1 and secondary touch chip TPIC2, baseband chip BIC1 and then based on signal controlling main screen LCD1 after handling and secondary screen LCD2, wherein main screen LCD1 is by shared data line DATA, the first chip selection signal line CS1 and the first reseting signal line RST1 are connected with baseband chip BIC1, and secondary screen LCD2 is by shared data line DATA, the second chip selection signal line CS2 and the second reseting signal line RST2 are connected with baseband chip BIC1.Wherein, baseband chip BIC1 touches chip TPIC2 by one group of Serial Peripheral Interface (SPI) (SPI with main touch chip TPIC1, pair, SerialPeripheral Interface) communicates, comprise clock signal DCLK, chip selection signal CS, data input signal DIN, instruction/data selection signal BUSY and data output signal DOUT.Main chip TPIC1 of touch and secondary external interrupt mouth EINT1, the EINT5 that is provided with two trigger data transmission between chip TPIC2 and the baseband chip BIC1 that touch.In addition, dual touch screen display device of the present utility model also comprises and is connected major and minor Hall chip HIC1 and the HIC2 that is used to produce chip selection signal CS1, CS2 with baseband chip BIC1, chip selection signal CS1, CS2 can be produced by Hall chip HIC1 and HIC2, also can be produced by baseband chip BIC1 itself.According to the utility model, this dual touch screen display device also comprises main screen backlight module and the secondary screen backlight module that is connected with baseband chip BIC1, and these two modules do not illustrate in Fig. 1.As a rule, main screen LCD1 and main touch pad TP1 are installed together and form main touch-screen, and described secondary screen LCD2 and secondary touch pad TP2 are installed together and form secondary touch-screen.
The utility model adopts the dual touch screen display device as user input apparatus, two touch chip independent control on hardware, each five GPIO ports (universal input and output port, promptly above-mentioned SPI interface) conduct control and data transmission mouth by baseband chip BIC1.As the triggering that needs data transmission, major and minor touch-screen uses the EINT1 of baseband chip BIC1 and EINT5 as interrupt pin respectively to major and minor touch-screen by two external interrupt.For touching input, consider and to carry out parallel processing to the touch input of outside, so used two different system tasks to handle respectively, and guaranteeing switching and real-time thereof between two tasks by the task scheduling of operating system, the priority of secondary screen LCD2 place task is that main screen LCD1 place task priority adds 1.Use the event signal different, data circular buffer and touch drives structure body variable etc. to handle with main touch-screen; such software architecture has made full use of the data protection and the process synchronizing function of operating system; can make can be more succinct efficient on the software design; thereby the degree of coupling that reduces intermodule reduces the probability make mistakes, but more the CPU of consumption systems and memory resource.
As shown in Figure 2, main screen of the present utility model adopts the mode of 16 bit parallel data-interfaces, 8080 MCU control, and the NLD0-NLD16 parallel data line hangs over NFI (the Nand Flash Interface) interface of baseband chip, and chip selection signal is set at LCE0#.Be compatible other 2.4 cun LCD, pattern selects signal IM0 to do compatible design, can move high level on the outside, and also down-drawable is to low level.It then is to utilize base band ADC resource that LCD ID detects, and detects the ID pin voltage of Different L CD and distinguishes different LCD.
As shown in Figure 3, secondary screen of the present utility model adopts the mode (select move high level on the signal IM0 to and realize by pattern) of 8 bit parallel data-interfaces, 8080 MCU control, the least-significant byte parallel data line NLD0-NLD7 of its shared main screen.In addition, reading data signal RD, write data signal WR, RS control signal are also shared with main screen, and chip selection signal is set at LCE1#.Use independent reset signal design between main screen and the secondary screen,, may cause electrification reset unsuccessful when shared so that prevent Different L CD reset timing difference.The same with main screen, secondary screen has also been done the compatibility design that pattern selects IM0 and LCD ID to detect.In preferred embodiment of the present utility model, secondary screen is to make button to show usefulness, therefore need be in ESD (Electro-Staticdischarge, static discharges) the some more considerations in aspect.Also have, the LCD reset signal is relatively more responsive, and the interference that is subjected to ESD easily causes white screen, has reserved voltage dependent resistor (VDR) in the design, also needs during the PCB cabling this signal is protected.
As shown in Figure 4, the utility model has adopted 2 groups of SPI interfaces (GPIO simulation), controls two respectively and touches chip (promptly main chip and the secondary chip that touches of touching), is used to produce the different look-at-me of two-way and gives base band, with the separate responses that realizes that major and minor screen touches.Because a lot of peripheral hardwares of this dual touch screen display device have all been used power vd D, and the VDD maximum output current has only 100mA, therefore upward load is overweight in order to prevent VDD, and the power supply that will touch chip has usually changed AVDD into.Aspect ESD, X+, X-, Y+, Y-at touch-screen in the design have kept voltage dependent resistor (VDR), to prevent that electrostatic damage from touching chip and causing touch to lose efficacy.
As shown in Figure 5, the pair that there is shown the two touch mobile phones of the utility model touches the schematic diagram in chip and peripheral loop, with main chip and the peripheral loop basically identical of touching shown in Figure 4, different is mainly touches chip and the secondary chip that touches produces two look-at-me EINT1 and EINT5 respectively as the triggering that needs data transmission.
Fig. 6 is the schematic diagram of the main screen backlight module of the two touch mobile phones of the utility model.Main screen of the present utility model employing backlight be that the key-press backlight of MTK power management chip MT6318 drives mouthful, the electric current of maximum exportable 80mA.By software setting MT6318 internal register, change output duty of ratio and frequency, can realize the adjusting of backlight illumination.
Fig. 7 is the schematic diagram of the pair screen backlight module of the two touch mobile phones of the utility model.What pair of the present utility model was shielded employing backlight is that output voltage is 5V with RT9361A charge-pump type DC-DC converter, and maximum output current is 110mA, can drive 4 white led lamps.The pin EN that enables of this converter receives baseband chip and has PWM output function GPIO mouth, recently adjusts secondary screen backlight illumination by frequency and the duty of regulating enable signal.In addition, in circuit shown in Figure 7, also can accomplish the compatibility of common the moon, common positive LCD on the hardware.
Fig. 8 and Fig. 9 are respectively the major and minor Hall chip of the two touch mobile phones of the utility model and the schematic diagram in peripheral loop.In Fig. 8, main Hall chip produces look-at-me EINT4_HALL1 to baseband chip, and baseband chip and then generation chip selection signal CS1 are to main screen LCD1 (with reference to figure 1).In Fig. 9, secondary Hall chip produces look-at-me EINT7_HALL2 to baseband chip, and baseband chip and then generation chip selection signal CS2 are to secondary screen LCD2.It should be noted that chip selection signal CS1, CS2 can be produced by Hall chip HIC1 and HIC2, also can be produced by baseband chip BIC1 itself.
As shown in figure 10, there is shown the embodiment of dual touch screen display device applications of the present utility model on mobile phone, main screen and main touch pad are installed together forms main touch-screen 101, and secondary screen and secondary touch pad are installed together forms secondary touch-screen 102.Especially, main touch-screen 101 is of a size of 2.4 cun shown in the figure, and secondary touch-screen 102 is of a size of 1.7 cun.
The above only is preferred embodiment of the present utility model, and in order to restriction the utility model, touch-screen can not be the touch-screen of resistance-type, and the simulating signal amount of output is a magnitude of voltage; Also can be capacitance touch, the simulating signal amount of output be a magnitude of voltage; It also can be other any touch-screen.Any modification of being done within every spirit of the present utility model and the principle, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1, a kind of dual touch screen display device, it is characterized in that, comprise by touching main touch pad and the secondary touch pad that input produces the simulating signal amount, touch chip with the main chip that touches that described simulating signal amount is handled that main touch pad is connected with secondary touch pad with pair respectively, the signal based on after handling that is connected with main touch chip and pair touch chip sends the baseband chip of control signal, main screen that is subjected to described control signal control that is connected with baseband chip and secondary screen, wherein main screen is by the shared data line, the first chip selection signal line and first reseting signal line are connected with baseband chip, and secondary screen is by the shared data line, the second chip selection signal line and second reseting signal line are connected with baseband chip.
2, dual touch screen display device according to claim 1 is characterized in that, described main screen is provided with 16 bit parallel data-interface NLD0-NLD16, and described secondary screen is provided with 8 bit parallel data-interface NLD0-NLD8.
3, dual touch screen display device according to claim 2 is characterized in that, described shared data line comprises that parallel data line NLD0-NLD8, reading signal lines, write signal line, RS control signal wire, pattern select signal wire and LCD ID signal lines.
4, dual touch screen display device according to claim 1 is characterized in that, described baseband chip communicates by one group of Serial Peripheral Interface (SPI) with main touch chip, the secondary chip that touches.
5, dual touch screen display device according to claim 4 is characterized in that, described Serial Peripheral Interface (SPI) comprises clock signal, chip selection signal, data input signal, instruction/data selection signal and data output signal.
6, dual touch screen display device according to claim 1, it is characterized in that, the main external interrupt mouth EINT1 that is provided with the trigger data transmission between chip and the baseband chip that touches, the secondary external interrupt mouth EINT5 that is provided with the trigger data transmission between chip and the baseband chip that touches.
7, dual touch screen display device according to claim 1 is characterized in that, described dual touch screen display device also comprises and is connected the main Hall chip that is used to produce first chip selection signal and second chip selection signal, secondary Hall chip with baseband chip.
8, dual touch screen display device according to claim 1 is characterized in that, described dual touch screen display device also comprises main screen backlight module and the secondary screen backlight module that is connected with baseband chip.
9, dual touch screen display device according to claim 1 is characterized in that, described main screen and main touch pad are installed together forms main touch-screen, and described secondary screen and secondary touch pad are installed together forms secondary touch-screen.
10, according to any one described dual touch screen display device in the claim 1 to 9, it is characterized in that, described dual touch screen display device is handset touch panel and wireless telecommunications and data processing terminal screen or MP4 touch-screen, PDA touch-screen, and described baseband chip is a device main control chip or from control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200957817U CN201233589Y (en) | 2008-07-25 | 2008-07-25 | Double touch screen display apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008200957817U CN201233589Y (en) | 2008-07-25 | 2008-07-25 | Double touch screen display apparatus |
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| CN201233589Y true CN201233589Y (en) | 2009-05-06 |
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| CNU2008200957817U Expired - Fee Related CN201233589Y (en) | 2008-07-25 | 2008-07-25 | Double touch screen display apparatus |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996031A (en) * | 2009-08-25 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Electronic device with touch input function and touch input method thereof |
| CN102200885A (en) * | 2010-03-25 | 2011-09-28 | Nec卡西欧移动通信株式会社 | Terminal device and control program thereof |
| CN102340569A (en) * | 2010-07-27 | 2012-02-01 | 上海闻泰电子科技有限公司 | Mobile phone with LED (Light-emitting Diode) backlight flickering by touch control |
| CN102385470A (en) * | 2010-09-01 | 2012-03-21 | 富葵精密组件(深圳)有限公司 | Electronic device |
| CN103336661A (en) * | 2012-03-12 | 2013-10-02 | 三星电子株式会社 | Display apparatus and control method thereof |
| CN103886697A (en) * | 2014-03-19 | 2014-06-25 | 深圳市中兴移动通信有限公司 | Reminding device and method of unread messages |
| CN105652973A (en) * | 2015-12-28 | 2016-06-08 | 深圳宝龙达信息技术股份有限公司 | Mainboard structure compatible with notebook computer and multi-source liquid crystal screen |
| WO2016173141A1 (en) * | 2015-04-27 | 2016-11-03 | 京东方科技集团股份有限公司 | Touch display circuit and driving method therefor, touch display panel and display device |
| CN111625146A (en) * | 2020-05-27 | 2020-09-04 | 北京无线电测量研究所 | Electronic product with double touch screens |
| WO2021139189A1 (en) * | 2020-01-08 | 2021-07-15 | 深圳市鸿合创新信息技术有限责任公司 | Transparent double-sided touch-control display method and display system |
| CN113760122A (en) * | 2021-07-21 | 2021-12-07 | 深圳市智微智能科技股份有限公司 | Secondary screen touch control method and system for dual-screen equipment, terminal and storage medium |
-
2008
- 2008-07-25 CN CNU2008200957817U patent/CN201233589Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996031A (en) * | 2009-08-25 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Electronic device with touch input function and touch input method thereof |
| CN102200885A (en) * | 2010-03-25 | 2011-09-28 | Nec卡西欧移动通信株式会社 | Terminal device and control program thereof |
| US9092127B2 (en) | 2010-03-25 | 2015-07-28 | Nec Casio Mobile Communications, Ltd. | Terminal device and control program thereof |
| CN102200885B (en) * | 2010-03-25 | 2017-05-17 | 日本电气株式会社 | terminal device and control program thereof |
| CN102340569A (en) * | 2010-07-27 | 2012-02-01 | 上海闻泰电子科技有限公司 | Mobile phone with LED (Light-emitting Diode) backlight flickering by touch control |
| CN102385470A (en) * | 2010-09-01 | 2012-03-21 | 富葵精密组件(深圳)有限公司 | Electronic device |
| CN103336661A (en) * | 2012-03-12 | 2013-10-02 | 三星电子株式会社 | Display apparatus and control method thereof |
| CN103886697A (en) * | 2014-03-19 | 2014-06-25 | 深圳市中兴移动通信有限公司 | Reminding device and method of unread messages |
| WO2016173141A1 (en) * | 2015-04-27 | 2016-11-03 | 京东方科技集团股份有限公司 | Touch display circuit and driving method therefor, touch display panel and display device |
| US9983712B2 (en) | 2015-04-27 | 2018-05-29 | Boe Technology Group Co., Ltd. | Touch display circuit, its driving method, touch display panel and display device |
| CN105652973A (en) * | 2015-12-28 | 2016-06-08 | 深圳宝龙达信息技术股份有限公司 | Mainboard structure compatible with notebook computer and multi-source liquid crystal screen |
| CN105652973B (en) * | 2015-12-28 | 2019-06-04 | 深圳宝龙达信息技术股份有限公司 | A kind of mainboard structure that notebook is mutually compatible with multi-source liquid crystal display |
| WO2021139189A1 (en) * | 2020-01-08 | 2021-07-15 | 深圳市鸿合创新信息技术有限责任公司 | Transparent double-sided touch-control display method and display system |
| CN111625146A (en) * | 2020-05-27 | 2020-09-04 | 北京无线电测量研究所 | Electronic product with double touch screens |
| CN111625146B (en) * | 2020-05-27 | 2023-08-04 | 北京无线电测量研究所 | Electronic product with double touch screens |
| CN113760122A (en) * | 2021-07-21 | 2021-12-07 | 深圳市智微智能科技股份有限公司 | Secondary screen touch control method and system for dual-screen equipment, terminal and storage medium |
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Effective date of registration: 20160216 Address after: 518000, No. 201, block B, garden city digital building, No. 1079 Nanhai Road, Guangdong, Shenzhen, Nanshan District Patentee after: Shenzhen K-free Wireless Information Technology Co., Ltd. Address before: 518000 China Nonferrous building, Shennan Avenue, Shenzhen, Guangdong, Futian District Patentee before: Shenzhen Wirelessk K-phone Technology Co., Ltd. |
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Granted publication date: 20090506 Termination date: 20170725 |