CN1549456A - Portable radio communication equipment - Google Patents
Portable radio communication equipment Download PDFInfo
- Publication number
- CN1549456A CN1549456A CNA031307280A CN03130728A CN1549456A CN 1549456 A CN1549456 A CN 1549456A CN A031307280 A CNA031307280 A CN A031307280A CN 03130728 A CN03130728 A CN 03130728A CN 1549456 A CN1549456 A CN 1549456A
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- radio communication
- touch pad
- portable radio
- communication device
- screening arrangement
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Abstract
The present invention provides a portable radio communication equipment. It includes a main body component whose interior is equipped with circuit portion and a touch plate for responding the touch of user and transferring the electric signal related to said touch into the described circuit. It is characterized by that it also includes a screening device, it is electrically connected with described main body component and can be used for reducing the interference of electric field outside of the described touch plate to said touch plate. Said invention can greatly improve the working performance of touch plate and can raise its hand-writing identification efficiency.
Description
Technical field
The present invention relates to Wireless Telecom Equipment, relating in particular to can be by the portable radio communication device of touch pad input information.
Background technology
Nowadays, Wireless Telecom Equipment can provide the various wireless communication business, as telephone service, cellular phone service, cordless telephone service and as the wireless data communication service of Email and short message.These business are bundled in respectively in the single communication equipment usually.By these radio communication services and independent equipment are bundled, production firm can provide more wieldy portable radio communication device.In fact, people more and more wish and can communicate by letter freely with Wireless Telecom Equipment by wired.And more and more popularizing of cellular communication makes that the use of portable cellular radiotelephones is more extensive.Along with the fast development of modern communication technology,, the demand more than a kind of multipurpose radio communication equipment of communication service improves greatly can being provided.
Portable radio communication device generally adopts keyboard input information or order.Also there are some portable radio communication devices to be provided with touch pad or touch-screen.For for simplicity, touch pad hereinafter also refers to touch-screen.Utilization is provided with the portable radio communication device of touch pad, and the user can with finger or stylus be clicked on touch pad or stroke write.Be arranged on the hand-written discrimination system of portable radio communication device inside, with the click on the touch pad or draw and to write (being referred to as " touch ") and be identified as corresponding information or order.Compare with keyboard, touch pad provides a kind of more natural, friendly information input mode.
Yet for the ease of the purpose of carrying, the common volume of portable radio communication device is less.In the limited inner space of portable radio communication device, have to be provided with touch pad very near other circuit elements.Like this, touch pad is subjected to the interference from other circuit element electric fields during operation inevitably, and the handwriting recognition rate descends, and service behaviour is unreliable.
Summary of the invention
The objective of the invention is to improve the service behaviour of touch pad in the portable radio communication device.
For achieving the above object, the invention provides a kind of portable radio communication device, comprising:
A main element, inside is provided with circuit;
A touch pad is used to respond the touch of user to described touch pad, transmits the signal of telecommunication relevant with touch to described circuit;
It is characterized in that also comprising:
A screening arrangement, electric go up is connected with described main element, is used to alleviate electric field outside the described touch pad to the interference of described touch pad.
According to portable radio communication device of the present invention, greatly reduce the interference of external electrical field to touch pad, improved the service behaviour of touch pad, improved the handwriting recognition rate.
Description of drawings
By following detailed, and in conjunction with the accompanying drawings, other characteristics of the present invention and advantage will be more obvious.
Fig. 1 is the schematic diagram according to portable radio communication device of the present invention;
Fig. 2 has schematically shown the plane figure of a touch pad or a face of electroluminescent sheet (ElectroluminescentSheet abbreviates the EL sheet as);
Fig. 3 is the schematic diagram according to another execution mode of portable radio communication device of the present invention;
Fig. 4 A and Fig. 4 B are the schematic diagrams according to the other execution mode of portable radio communication device of the present invention;
Fig. 5 is the layer structure schematic diagram of the EL sheet that uses in the portable radio communication device shown in Fig. 4 A and Fig. 4 B.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.
Fig. 1 is the schematic diagram according to portable radio communication device of the present invention.As shown in Figure 1, portable radio communication device of the present invention comprises a main element 1, and main element 1 inside is provided with the circuit 4 that is used to realize relevant function; A touch pad 2 is used for the touch (click or draw and write) to touch pad 2 in response to the user, the signal of telecommunication that the circuit 4 in main element 1 transmits corresponding to described touch.In main element 1, (not shown by corresponding hand-written discrimination system, play a role with circuit 4), will be identified as certain character or stroke from the signal of telecommunication of touch pad 2, thereby be corresponding information or order the touch recognition of user on touch pad 2.The operation principle of hand-written discrimination system for those of ordinary skills know, repeats no more.
Portable radio communication device shown in Figure 1 also comprises a screening arrangement 3, and it is connected with main element 1 on electric, is used to alleviate electric field outside the touch pad 2 to the interference of touch pad 2.Screening arrangement 3 can ground connection.
Under the situation that does not have screening arrangement 3, the electric field outside the touch pad 2 will be coupled on the top layer or bottom of touch pad 2, makes the linearity of touch pad 2 not meet its specification requirement.
Under the situation that is provided with screening arrangement 3, be inhibited from the interference (also being called " electrical noise ") of touch pad 2 external electrical fields, even make and touch pad 2 is not being carried out under the situation of adjustment, the linearity of touch pad 2 also can reach+/-2%.
As a kind of execution mode, screening arrangement 3 can be arranged on the conducting film at least one face of touch pad.This conducting film can be made by any electric conducting material, comprises silver, indium tin oxide (indium tin oxide is abbreviated as ITO), indium oxide, carbon etc.This conducting film can be with any technology be applied on the face of touch pad or two faces on, comprise printing, coating, vacuum deposition etc.This conducting film also can be an arbitrary shape.
In a word, the material of screening arrangement 3, formation technology and shape are not construed as limiting the invention.Also be like this in the execution mode afterwards.
Fig. 2 has schematically shown the plane figure of a face of touch pad (or the EL sheet that is described further below).Fig. 2 is that example has shown a surface of touch pad 2 (or the EL sheet 41 shown in Fig. 4 A, Fig. 4 B) with the rectangle.This surface comprises a main region 21 and fringe region 22.Can be arranged on as the conducting film of screening arrangement 3 in the main region 21 on the face of touch pad 2, also can be arranged in the fringe region 22 on the face of touch pad 2.In either case, conducting film can ground connection.
Fig. 3 is the schematic diagram according to another execution mode of portable radio communication device of the present invention.Compared to Figure 1, increased a kind of lighting device among Fig. 3, this lighting device is used to touch pad 2 that illumination is provided.As shown in Figure 3, lighting device comprises lamp 31 (cold light lamp, light-emitting diode etc.) and light guide plate 32.Lamp 31 is to light guide plate 32 emission light.Light guide plate 32 will reflex on the input plane of touch pad 2 from the light of lamp 31.
For touch pad 2 provides the benefit of lighting device be, in the environment of insufficient light, the user also can see touch pad 2 clearly, thereby utilizes touch pad 2 to portable radio communication device input information or order.
Structure shown in Figure 3 is applicable to that also touch pad is used as the situation of touch-screen.In this case, touch pad 2 is made with transparent material, and is superimposed upon on the LCD (not shown).The lighting device that is made of lamp 31 and light guide plate 32 provides backlight for LCD.See through touch pad 2, can see the display frame on the LCD clearly.
In the structure shown in Figure 3, screening arrangement 3 can be arranged on the touch pad 2.If be convenient to be provided with, also screening arrangement 3 can be arranged on the lighting device, as be arranged on the lamp 31, perhaps be arranged on the light guide plate 32, perhaps not only be arranged on the lamp 31 but also be arranged on the light guide plate 32.
Fig. 4 A and Fig. 4 B are the schematic diagrams according to the other execution mode of portable radio communication device of the present invention.Utilize electroluminescent sheet (being the EL sheet) 41 lighting devices among Fig. 4 A and Fig. 4 B as touch pad 2.Certainly, in this case, both screening arrangement 3 can be arranged on the touch pad 2, also screening arrangement 3 can be arranged on the lighting device (being EL sheet 41 in this example).The main distinction of Fig. 4 A and Fig. 4 B is, in Fig. 4 A, screening arrangement 3 is between touch pad 2 and EL sheet 41, and in Fig. 4 B, EL sheet 41 is between touch pad 2 and screening arrangement 3.
It should be noted that at this accompanying drawing of quoting in this specification all is schematic diagrames, do not represent the actual size of relevant parts shown in the figure, the relation between each parts also is a relative position relation.Be example only with Fig. 4 A, though touch pad 2 shown in Fig. 4 A, screening arrangement 3, electroluminescent sheet 41 are positioned at the below of main element 1, but in fact, for the ease of user's operation, touch pad 2, screening arrangement 3, electroluminescent sheet 41 are positioned at the upper surface of main element 1 (for example main body of a mobile phone).
If screening arrangement 3 is arranged on the EL sheet 41 shown in Fig. 4 A and Fig. 4 B, then screening arrangement 3 can be become at least one lip-deep conducting film that one deck is formed on EL sheet 41.This conducting film can ground connection.
As mentioned before, Fig. 2 also represents the plane figure on a surface of EL sheet 41.This surface of EL sheet 41 comprises a main region 21 and fringe region 22.Can be arranged on as the conducting film of screening arrangement 3 in the fringe region 22 on the face that also can be arranged on touch pad in the lip-deep main region 21 of EL sheet 41.In either case, conducting film can ground connection.
In the structure shown in Fig. 4 A and Fig. 4 B, EL sheet 41 and touch pad 2 can be superimposed.Compare with touch pad 2, EL sheet 41 can be more near the outside of portable radio communication device.This requires EL sheet 41 must possess enough pliabilities, so that the user is delivered on the touch pad 2 each layer that the touch of EL sheet 41 can see through EL sheet 41.
Under the situation that EL sheet 41 and touch pad 2 are superimposed, also can make touch pad 2 than EL sheet 41 more near the outside of portable radio communication device.The user is directly received by touch pad 2 touch of touch pad 2, and without EL sheet 41.
In a word, it is emphasized that about Fig. 4 A and Fig. 4 B if utilize conducting film as screening arrangement 3, then this layer conducting film both can be formed on the upper surface or lower surface of touch pad 2, also can be formed on the upper surface or lower surface of EL sheet 41; No matter be formed on which surface, conducting film both can take this surperficial main region 21, also can take this surperficial fringe region 22; If touch pad 2 and EL sheet 41 are stacked, then conducting film both can also can be positioned at outside touch pad 2 and the EL sheet 41 between touch pad 2 and EL sheet 41.
Fig. 5 is the layer structure schematic diagram of the EL sheet 41 that uses in the portable radio communication device shown in Fig. 4 A and Fig. 4 B.Among Fig. 5, EL sheet 41 comprises PET (terephthalic acid (TPA) ethanol polyester, i.e. polyethylene terephthalate) film 7, first electrode layer 8, phosphor layer 9, dielectric layer 10, the second electrode lay 11.By first electrode layer 8 and the second electrode lay 11 being applied alternating current (is that 59 volts, frequency are 250 hertz alternating current as effective value), under the AC field effect, phosphor layer 8 is with luminous.The operation principle of EL sheet 41 is that those of ordinary skills know, and repeats no more.In addition, different according to the stacked system of touch pad 2 and EL sheet 41, PET film 7 is optional, PET film 7 also can be made with other materials that is equal to, as Merlon (polycarbonate, be called for short PC), polyethers (polyether), sulfone class (sulfone, PES).The structure of EL sheet 41 and composition are not construed as limiting the invention.
Portable radio communication device is generally supplied with low-voltage DC by battery.In portable radio communication device inside, after low-voltage DC (as 2.78 volt direct currents) is converted to high voltagehigh frequency alternating current (is that 59 volts, frequency are 250 hertz alternating current as effective value) by electroluminescent sheet (EL sheet) driver 14, offer first electrode layer 8 and the second electrode lay 11 of EL sheet 41.
Because use alternating current, the AC field of generation must cause interference to the peripheral circuits components and parts.For reducing this interference, as shown in Figure 5, insulating barrier 12 and screen 13 outside the second electrode lay 11, have been increased.Screen 13 is a kind of conducting films.Screen 13 is exactly a kind of form of previously described screening arrangement 3.As mentioned before, as the screen 13 of screening arrangement 3, its material, formation technology and shape are not construed as limiting the invention.
To portable radio communication device shown in Figure 5, touch pad 2 can be an any kind at Fig. 1.For example, touch pad 2 can be resistive type, capacitance type, perhaps pressure sensitive.Dissimilar touch pads 2 are not construed as limiting the invention.
In addition, the touch pad 2 among the present invention also can be used as touch-screen, as long as the material of touch pad 2 is transparent.For example, when touch pad 2 is used as touch-screen, touch pad (being touch-screen) 2 and LCD display panel (not shown) can be stacked, can use the backlight of EL sheet 41 as the LCD display panel.In this case, both can be arranged on the surface of touch pad (being touch-screen) 2, also can be arranged on the surface of EL sheet 41 as the conducting film of screening arrangement 3.If the LCD display panel adopts other backlights that is not easy to be provided with screening arrangement 3 thereon without EL sheet 41 as backlight, then the conducting film as screening arrangement 3 can be arranged on the surface of touch pad (being touch-screen) 2.Under a lip-deep situation that conducting film is arranged on touch pad (being touch-screen) 2, conducting film must be transparent, for example adopts material indium tin oxide (ITO).
Though the specific embodiment of the present invention has been described in conjunction with the accompanying drawings,, for the ordinary skill in the art, under the situation that does not deviate from essence of the present invention, can make various changes and modifications to embodiments of the present invention.Therefore, scope of the present invention only is defined by the claims.
Claims (23)
1. portable radio communication device comprises:
A main element, inside is provided with circuit;
A touch pad is used to respond the touch of user to described touch pad, transmits the signal of telecommunication relevant with touch to described circuit;
It is characterized in that also comprising:
A screening arrangement, electric go up is connected with described main element, is used to alleviate electric field outside the described touch pad to the interference of described touch pad.
2. according to the portable radio communication device of claim 1, it is characterized in that described screening arrangement ground connection.
3. according to the portable radio communication device of claim 1, it is characterized in that described screening arrangement is arranged on the described touch pad.
4. according to the portable radio communication device of claim 3, it is characterized in that described screening arrangement is arranged on the conducting film at least one face of described touch pad.
5. according to the portable radio communication device of claim 4, it is characterized in that described conducting film has occupied the main region of described at least one face of described touch pad.
6. according to the portable radio communication device of claim 4, it is characterized in that described conducting film has occupied the fringe region of described at least one face of described touch pad.
7. according to the portable radio communication device of claim 3, it is characterized in that also comprising:
A lighting device is used to described touch pad that illumination is provided.
8. according to the portable radio communication device of claim 1, it is characterized in that also comprising:
A lighting device is used to described touch pad that illumination is provided;
Wherein said screening arrangement is arranged on the described lighting device.
9. portable radio communication device according to Claim 8 is characterized in that described lighting device is an electroluminescent sheet, and described screening arrangement is to be applied to lip-deep conducting film of described electroluminescent sheet.
10. according to the portable radio communication device of claim 9, it is characterized in that described conducting film has occupied the main region on the described surface of described electroluminescent sheet.
11., it is characterized in that described conducting film has occupied the fringe region on the described surface of described electroluminescent sheet according to the portable radio communication device of claim 9.
12., it is characterized in that described conducting film ground connection according to the portable radio communication device of claim 9.
13., it is characterized in that constituting an electrode layer ground connection described electroluminescent sheet part, that for described conducting film, be positioned at described electroluminescent sheet opposite side according to the portable radio communication device of claim 12.
14. according to the portable radio communication device of claim 9, it is characterized in that described electroluminescent sheet and described touch pad stack, compare the outside of the more approaching described portable radio communication device of described electroluminescent sheet with described touch pad.
15. according to the portable radio communication device of claim 9, it is characterized in that described electroluminescent sheet and described touch pad stack, compare the outside of the more approaching described portable radio communication device of described touch pad with described electroluminescent sheet.
16. according in the claim 1 to 17 each portable radio communication device, it is characterized in that described touch pad is the resistor-type touch pad.
17. according in the claim 1 to 17 each portable radio communication device, it is characterized in that described touch pad is the capacitance type touch pad.
18. according in the claim 1 to 17 each portable radio communication device, it is characterized in that described touch pad is the pressure sensitive touch pad.
19. according in the claim 1 to 17 each portable radio communication device, it is characterized in that described touch pad is as touch-screen.
20. according in the claim 1 to 17 each portable radio communication device, it is characterized in that the material of described screening arrangement contains silver.
21. according in the claim 1 to 17 each portable radio communication device, it is characterized in that the material of described screening arrangement contains indium tin oxide.
22. according in the claim 1 to 17 each portable radio communication device, it is characterized in that the material of described screening arrangement contains indium oxide.
23. according in the claim 1 to 17 each portable radio communication device, it is characterized in that the material of described screening arrangement contains carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031307280A CN1549456A (en) | 2003-05-09 | 2003-05-09 | Portable radio communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031307280A CN1549456A (en) | 2003-05-09 | 2003-05-09 | Portable radio communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1549456A true CN1549456A (en) | 2004-11-24 |
Family
ID=34322663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031307280A Pending CN1549456A (en) | 2003-05-09 | 2003-05-09 | Portable radio communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1549456A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7876037B2 (en) | 2007-03-02 | 2011-01-25 | Seiko Epson Corporation | Organic electroluminescence device having input function and electronic apparatus |
| CN102131374A (en) * | 2010-01-19 | 2011-07-20 | 环旭电子股份有限公司 | Shielding structure with electromagnetic protection function |
| CN102665308A (en) * | 2007-03-02 | 2012-09-12 | 精工爱普生株式会社 | Organic electroluminescence device having input function and electronic apparatus |
-
2003
- 2003-05-09 CN CNA031307280A patent/CN1549456A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7876037B2 (en) | 2007-03-02 | 2011-01-25 | Seiko Epson Corporation | Organic electroluminescence device having input function and electronic apparatus |
| CN101257746B (en) * | 2007-03-02 | 2012-01-25 | 精工爱普生株式会社 | Organic electroluminescence device having input function and electronic apparatus |
| CN102665308A (en) * | 2007-03-02 | 2012-09-12 | 精工爱普生株式会社 | Organic electroluminescence device having input function and electronic apparatus |
| CN102665308B (en) * | 2007-03-02 | 2015-07-22 | 精工爱普生株式会社 | Organic electroluminescence device having input function and electronic apparatus |
| CN102131374A (en) * | 2010-01-19 | 2011-07-20 | 环旭电子股份有限公司 | Shielding structure with electromagnetic protection function |
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