CN101198123B - Mobile phone with expandable display screen - Google Patents
Mobile phone with expandable display screen Download PDFInfo
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- CN101198123B CN101198123B CN200710115329.2A CN200710115329A CN101198123B CN 101198123 B CN101198123 B CN 101198123B CN 200710115329 A CN200710115329 A CN 200710115329A CN 101198123 B CN101198123 B CN 101198123B
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- mobile phone
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Abstract
The invention discloses a display screen expanding mobile telephone which is provided with a video signal processing circuit inside. A housing is provided with an expanding screen interface capable of connecting the external display screen. The video signal processing circuit is connected with the display screen on a mobile telephone body on the one hand and is connected with the expanding screen interface on the other hand. A video signal is transmitted to the external display screen by the video signal processing circuit through the expanding screen interface. The invention realizes the connection and communication of the mobile telephone and the external display screen, thereby overcoming the shortcomings of a small LCD visible range and a low resolution of the prior mobile telephone. Under the precondition that the volume and the weight of the prior mobile telephone are not increased, the invention meets the requirement of the user quickly browsing the video information such as the data service and the multimedia service.
Description
Technical field
The invention belongs to the mobile communication equipment technical field, specifically, relate to a kind of mobile phone that connects outside expansion screen.
Background technology
The development of mobile technology is maked rapid progress, and people also grow with each passing day to its dependence.Honeycomb mobile communication equipment had both brought use flexible to the user, had brought great riches to people again.Closely during the last ten years, global cellular mobile subscriber's annual average rate of increase surpasses 40%, surpasses 200% when China's mobile subscriber's annual growth is the highest, the prediction that has surpassed soon brainstrust of development speed.21 century is the information age, and the internet has produced volatile development in the whole world, and data transfer will surpass speech digit communication very soon, and the multimedia integration business service is increased sharply increasingly.
Traditional mobile phone wants that cube is little, lightweight, power saving, easy to carry, and original LCD display is difficult to satisfy the needs that the user browses data, multimedia service on the mobile phone and adopt.But, if at mobile phone larger LCD display is set, can cause the increase of mobile phone volume undoubtedly, thus be unfavorable for the user go out carry.
Therefore, how satisfying the user to the fast browsing demand of data, multimedia service under the prerequisite that does not increase the mobile phone volume, is a technical barrier of present vast mobile phone development merchant institute facing.
Summary of the invention
The present invention provides a kind of mobile phone of expandable display screen in order to overcome the little shortcoming of conventional mobile phone display screen, thereby has satisfied the fast browsing demand of user to data business and multimedia service.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of mobile phone of expandable display screen, its inside is provided with video processing circuit, be provided with the expansion screen interface that can connect exterior display screen on the housing, described video processing circuit connects the display screen on the mobile phone body on the one hand, connect on the other hand described expansion screen interface, shield interface to the exterior display screen transmission video signal by described expansion.
Wherein, in described expansion screen interface, include power supply terminal, earth terminal, data-signal transmission terminal and control signal transmission terminal, respectively with power supply, the ground wire of interior of mobile phone and the corresponding connection of data pins, control signal pin of video processing circuit of being connected.
Further, the video data that described video processing circuit needs exterior display screen to show by its data pins to the output of described expansion screen interface is for the exterior display screen output display.
Described expansion screen interface connects exterior display screen by signal transmssion line, when described exterior display screen is touch-screen, in order to make mobile phone can respond user's touch instruction, the coordinate position detection terminal of touch point is set on the one hand, in order to the position signalling to video processing circuit transmission touch point in described expansion screen interface; Receive on the other hand the data-signal of exterior display screen output by the data-signal transmission terminal of described expansion screen interface, namely realize the transmitted in both directions of data between described video processing circuit and the exterior display screen.
Further, in the control signal transmission terminal of described expansion screen interface, comprise the reset signal terminal, read the enable signal terminal, write the enable signal terminal, chip selection signal terminal and exterior display screen detection signal terminal, respectively with the corresponding connection of corresponding control signal pin of described video processing circuit.
In order to reach the purpose that is convenient for carrying, described exterior display screen preferably adopts the collapsible screen of being made by coiled material to realize, connects the expansion screen interface of mobile phone or directly is plugged on described expansion by signal transmssion line and shield on the interface.
Wherein, described exterior display screen preferably adopts LCD display or LCD touch-screen to realize, is connected communication by its inner treatment circuit with the video processing circuit of interior of mobile phone, to finish mobile phone to the demonstration control of exterior display screen.
For the operating time of extending cell phone when using exterior display screen to carry out the image demonstration, be preferably in rechargeable battery is set in the exterior display screen, for exterior display screen provides working power, to reduce the consumption to mobile phone internal cell electric weight.
Compared with prior art, advantage of the present invention and good effect are: extending screen mobile phone of the present invention is by the screen of device extension on mobile phone interface, be used for realization and be connected communication with exterior display screen, thereby overcome the shortcoming that conventional mobile phone LCD viewing area is little, resolution is low, under the prerequisite that does not increase existing mobile phone volume and weight, satisfied the fast browsing demand of user to video informations such as data business and multimedia services.
After reading by reference to the accompanying drawings the detailed description of embodiment of the present invention, other characteristics of the present invention and advantage will become clearer.
Description of drawings
Fig. 1 is the mobile phone of expandable display screen proposed by the invention and the connection diagram of exterior display screen;
Fig. 2 is the internal circuit schematic diagram of the mobile phone of described expandable display screen.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.
The present invention expands for the viewing area to mobile phone display screen, set up expansion screen interface in a side of handset shell, the video processing circuit that connects interior of mobile phone, can make mobile phone be connected communication with exterior display screen by described expansion screen interface, can only can show by external big screen display screen by the video information of the screen of the LCD on mobile phone body output thereby make originally, thereby realized the very big expansion of mobile phone viewing area, satisfied the fast browsing demand of user to video informations such as data business and multimedia services, displaying contents is presented on the exterior display screen in larger mode, is not that very good crowd uses thereby be fit to very much the elderly or eyesight.Because external screen size can not be subjected to the restriction of mobile phone volume, so its resolution can design quite highly, to the display frame that the user provides high definition, improves its visual effect with this.Its annexation is referring to shown in Figure 1, and wherein, exterior display screen can be that LCD screen or CRT shield etc., considers from angle easy to carry, preferably adopts the collapsible LCD screen of being made by coiled material to shield as the expansion of mobile phone and uses.
Fig. 2 has enumerated wherein a kind of way of realization of the internal circuit schematic diagram of described mobile phone, wherein, video processing circuit can adopt a video frequency processing chip U1 who is integrated with CPU to cooperate simple peripheral circuit to connect and realize, connects on the one hand the LCD screen on the mobile phone body; Connect on the other hand expansion screen interface, to realize to mobile phone body LCD screen and/or outside expansion screen output video information.Expansion screen interface can adopt the LCD Interface realization of standard, give unified definition by each pin to the LCD interface, and the interface that the outside expansion is shielded also gives corresponding unified definition, expansion screen and the mobile phone of self that the user just can arbitrarily buy other models are used, thereby help lend some impetus to promoting the use of of extending screen mobile phone.
Present embodiment is specifically addressed as an example of the LCD interface J1 of 32pin example, shown in the pin definitions of described LCD interface J1 sees table.
Among Fig. 2,1 pin of LCD interface J1 is earth terminal, connects the ground wire of interior of mobile phone circuit, and the realization system altogether; 2 pin, 3 pin connect interior of mobile phone provides operating voltage for the backlight of outside expansion screen power circuit; 4 pin are the reset signal terminal, connect the reseting pin RESET of video frequency processing chip U1; 5～22 pin are 18bit bi-directional data signal transmission terminal, connect the data pins D[0-17 of video frequency processing chip U1]; 23,24 pin are respectively and read the enable signal terminal and write the enable signal terminal, respectively with the corresponding connection of reading and writing enable signal output pin of video frequency processing chip U1; 25 pin are data or command selection signal terminal, connect the control signal output pin (specifically can adopt the GPIO cause for gossip of one road now) of video frequency processing chip U1; 26 pin are the chip selection signal terminal, connect the chip selection signal output pin of video frequency processing chip U1; 27 pin are external LCD screen detection signal terminal, connect the road GPIO mouth of video frequency processing chip U1, and the inserting state that external LCD is shielded detects; 28 pin are power supply terminal, connect the power supply of interior of mobile phone, when the external LCD screen is plugged on the mobile phone, in order to provide working power to the external LCD screen; 29～32 pin are the coordinate position detection terminal of touch point on the touch-screen, can select to arrange according to whether connecting touch-screen, the input pin (such as its GPIO mouth) that connects video frequency processing chip U1, in order to the position signalling to video frequency processing chip U1 transmission touch point, correctly to respond user's touch operation.
The exterior display screen that connects by LCD interface J1 when described mobile phone is when only having the common LCD screen of Presentation Function, video data to be shown is by the data pins D[0-17 of video frequency processing chip U1] output, 5～22 pin by LCD interface J1 are transferred to outside LCD screen, to realize the externally output display on the LCD screen of video information.Certainly, described video information also can show output simultaneously by the screen of the LCD on the mobile phone body and external LCD screen, browses to make things convenient for the user.And when exterior display screen selects to touch the LCD screen, the operational order that the user sends by touch can convert by the treatment circuit of touch-screen inside 5～22 pin of corresponding director data by LCD interface J1 to and be transferred to video frequency processing chip U1, to realize that mobile phone is to the timely response of user's operation.
Wherein, described exterior display screen can connect by signal transmssion line the LCD interface J1 of mobile phone, perhaps directly be plugged on the described LCD interface J1, be connected communication by its inner treatment circuit with the video frequency processing chip U1 of interior of mobile phone, to finish mobile phone to the demonstration control of exterior display screen.
In addition, in order to save the electric weight of interior of mobile phone battery, the boot running time of extending cell phone is preferably externally set up rechargeable battery in the display screen, to provide operating voltage to exterior display screen.Described rechargeable battery can be the common lithium battery with charge function, is its additional electric weight when the mobile phone internal cell is charged; Also can select solar energy charging battery to realize, solar energy is converted to electrical power storage in battery, provide operating voltage for exterior display screen on the one hand, also can replenish electric weight for the interior of mobile phone battery on the other hand.
By adopting above-mentioned Interface Expanding structure, make the viewing area of mobile phone obtain effective expansion, convenient for users to use, the additional function that the while has also been expanded mobile phone has improved its market competitiveness.
Certainly, the above only is a kind of preferred implementation of the present invention, should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. the mobile phone of an expandable display screen, it is characterized in that: the video processing circuit that is integrated with the video frequency processing chip of CPU in the interior of mobile phone setting, be provided with the expansion screen interface that can connect exterior display screen at handset shell, described video processing circuit connects the display screen on the mobile phone body on the one hand, connect on the other hand described expansion screen interface, shield interface to the exterior display screen transmission video signal by described expansion; Described expansion screen interface is the LCD interface, each pin to the LCD interface gives unified definition, and also give corresponding unified definition to the interface that is used on the exterior display screen linking to each other with the mobile phone main body, at least comprise power supply terminal, earth terminal, data-signal transmission terminal and control signal transmission terminal, they connect one to one with data pins, the control signal pin of power supply, ground wire and the described video processing circuit of interior of mobile phone respectively; Wherein, the data pins of described video processing circuit connects described data-signal transmission terminal by BDB Bi-directional Data Bus.
2. mobile phone according to claim 1 is characterized in that: described video processing circuit is by the data-signal transmission terminal of described expansion screen interface and the transmitted in both directions that exterior display screen carries out data-signal.
3. mobile phone according to claim 1, it is characterized in that: in the control signal transmission terminal of described expansion screen interface, comprise the reset signal terminal, read the enable signal terminal, write the enable signal terminal, chip selection signal terminal and exterior display screen detection signal terminal that the corresponding control signal pin with described video processing circuit connects one to one respectively.
4. mobile phone according to claim 1, it is characterized in that: the coordinate position detection terminal that in described expansion screen interface, also includes the touch point, when the exterior display screen that is connected with described expansion screen interface is touch-screen, by the position signalling of described coordinate position detection terminal to described video processing circuit transmission touch point.
5. each described mobile phone in 4 according to claim 1, it is characterized in that: exterior display screen connects the expansion screen interface of mobile phone by signal transmssion line or directly is plugged on the described expansion screen interface.
6. mobile phone according to claim 5, it is characterized in that: described exterior display screen is the collapsible screen of being made by coiled material.
7. mobile phone according to claim 6 is characterized in that: described exterior display screen is LCD screen or LCD touch-screen.
8. mobile phone according to claim 5 is characterized in that: be provided with rechargeable battery in described exterior display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710115329.2A CN101198123B (en) | 2007-12-08 | 2007-12-08 | Mobile phone with expandable display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710115329.2A CN101198123B (en) | 2007-12-08 | 2007-12-08 | Mobile phone with expandable display screen |
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| Publication Number | Publication Date |
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| CN101198123A CN101198123A (en) | 2008-06-11 |
| CN101198123B true CN101198123B (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710115329.2A Expired - Fee Related CN101198123B (en) | 2007-12-08 | 2007-12-08 | Mobile phone with expandable display screen |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916186A (en) * | 2010-07-30 | 2010-12-15 | 深圳创维－Rgb电子有限公司 | Method, device and terminal for expanded display of mobile terminal view |
| KR101952682B1 (en) * | 2012-04-23 | 2019-02-27 | 엘지전자 주식회사 | Mobile terminal and method for controlling thereof |
| CN102932504A (en) * | 2012-10-12 | 2013-02-13 | 袁阳 | Auxiliary device for smart machines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641944Y (en) * | 2003-09-01 | 2004-09-15 | 宁维屏 | Separating intelligent computerized cell having external displaying panel |
| CN1744029A (en) * | 2005-10-19 | 2006-03-08 | 康佳集团股份有限公司 | Subscriber-programmable mobile phone LCD interface configuration |
| CN1750532A (en) * | 2005-09-15 | 2006-03-22 | 北京工业大学 | Embedded general communication board based on signal ML language |
| CN1870126A (en) * | 2005-05-24 | 2006-11-29 | 乐金电子（昆山）电脑有限公司 | LCD module interface device and method |
| CN200956198Y (en) * | 2006-09-22 | 2007-10-03 | 中国科学院沈阳科学仪器研制中心有限公司 | Data acquisition and liquid crystal display module |
-
2007
- 2007-12-08 CN CN200710115329.2A patent/CN101198123B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641944Y (en) * | 2003-09-01 | 2004-09-15 | 宁维屏 | Separating intelligent computerized cell having external displaying panel |
| CN1870126A (en) * | 2005-05-24 | 2006-11-29 | 乐金电子（昆山）电脑有限公司 | LCD module interface device and method |
| CN1750532A (en) * | 2005-09-15 | 2006-03-22 | 北京工业大学 | Embedded general communication board based on signal ML language |
| CN1744029A (en) * | 2005-10-19 | 2006-03-08 | 康佳集团股份有限公司 | Subscriber-programmable mobile phone LCD interface configuration |
| CN200956198Y (en) * | 2006-09-22 | 2007-10-03 | 中国科学院沈阳科学仪器研制中心有限公司 | Data acquisition and liquid crystal display module |
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| CN101198123A (en) | 2008-06-11 |
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Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Applicant after: Qingdao Hisense Mobile Communication Technology Co., Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Applicant before: Qingdao Hisense Mobile Communication Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20191208 |