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The Advantages And Disadvantages Of Capacitive Touch Panel Capacitive Touch Panel transmittance and clarity is better than four-wire resistive screen, of course, can not and surface acoustic wave and five-wire resistance screen compared. Capacitive screen reflective serious, and, capacitive technology of the four-layer composite touch screen on the wavelength of light transmission is not uniform, there is the problem of color distortion, due to the reflection of the light between the layers, but also cause the image character blur. Current: the capacitive screen in principle to the human body as a capacitor element of an electrode used, when there is a conductor near the junction with the ITO working surface coupling a sufficient amount of capacitance, the current flow is enough to cause the capacitive screen Wrong move. Although the capacitance value is inversely proportional to the distance between the poles, it is proportional to the relative area and is also related to the insulation coefficient of the medium. Therefore, when the larger area of the palm or hand-held conductor close to the capacitive screen rather than touch can cause capacitive screen malfunction, in wet weather, this situation is particularly serious, holding the monitor, palm close to the monitor 7 cm Or within the body close to the monitor within 15 cm can cause the capacitive screen malfunction. Another drawback of the capacitive screen is that it does not respond when wearing gloved hands or hand-held non-conductive objects, due to the addition of more insulating media. Drift: Capacitive screen is the main drawback is drift: When the ambient temperature, humidity changes, the environment electric field changes, will cause the capacitive screen drift, resulting in inaccurate. For example, the display temperature rise will cause drift after the boot: the user touches the screen while the other hand or body side is close to the monitor drift; the Capacitive Touch Panel near the larger objects move will drift, the user touches if someone around to watch (Including the user's body), although the Capacitive Touch Panel away from the far, but much larger than the finger area, they directly affect the touch location of the location of the screen Determination. Other: In addition, theoretically many should be linear relationship is actually non-linear, such as: different weight or different levels of finger wetting the total amount of current is different, and the total current changes and four sub-current The change of the non-linear relationship, the Capacitive Touch Panel used in this four-angle custom polar coordinate system has no coordinates on the origin, after drift the controller can not detect and restore, and, after 4 A / D is completed by the four The value of the split flow to the touch point in the Cartesian coordinate system on the X, Y coordinate value of the calculation process is complex. Since there is no origin, the drift of the capacitive screen is cumulative, and calibration is often required at the job site. Capacitive Touch Panel The outermost siliceous glass protects the glass from scratches well, but fear of nails or hard objects percussion, knocking out a small hole will hurt the mezzanine ITO, whether it is hurt the mezzanine ITO or install the transport process injury The inner surface of the ITO layer, capacitive screen can not work properly.
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Kapacitivni Touch Panel prolaska topline i jasnoća je bolji od četiri žice buntovna zaslon, naravno, ne mogu i akustički val površina i pet žica otpor ekrana u odnosu. Kapacitivni zaslon reflektirajuća ozbiljne i, kapacitivni tehnologiju od četiri sloja kompozitnog dodirni zaslon na valnoj dužini svjetla nije jedinstvena, postoji problem boja iskrivljenost, zbog refleksije svjetlosti između slojeva, ali također uzrokovati karakter zamagliti sliku. Aktualno: kapacitivni ekran u principu da ljudsko tijelo kao kondenzator element elektrode koristi, kada je kao dirigent u blizini raskršća sa ITO radna površina spojke dovoljnu količinu kapaciteta, trenutni protok je dovoljno da uzrokuje na kapacitivni zaslon pogrešan potez. Iako vrijednost kapaciteta je obrnuto proporcionalna udaljenosti između polova, je proporcionalan relativnom prostoru i također se odnosi na koeficijent izolacije medija. Dakle, veće područje dlan ili ručni dirigent blizu kapacitivni zaslon nego dodir može uzrokovati kvar kapacitivni zaslon, u vlažnim vremenskim uvjetima, ova situacija je posebno ozbiljna, drži monitor, dlan uz monitor 7 cm ili unutar tijela blizu monitora unutar 15 cm može uzrokovati kvar kapacitivni zaslon. Drugi nedostatak kapacitivnih ekrana je odgovoriti kada se nosi rukavicama ruke ili ručni ne-vodljivi predmeti, zbog toga više izolacijskog medija. Drift: Kapacitivni ekran je glavni nedostatak je drift: kada temperatura okoline, vlaga promjene, elektriËno polje mijenja okoliš će uzrokovati kapacitivni zaslon Smet, rezultira netočan. Na primjer, prikaz porasta temperature će uzrokovati zanošenje nakon boot: korisnik dotakne zaslon dok s druge strane ili strana tijela je blizu monitora drift; Kapacitivni Touch ploči u blizini većih objekata potez će drift korisnik dira ako netko da pazi (uključujući korisnika tijelo), iako je kapacitet Popipati Pravokutna ploča od daleko, ali mnogo veća od područja prst izravno utječu na dodir mjesto mjesto na zaslonu odlučnost. Ostalo: Osim toga, teoretski mnogi bi trebao biti linearni odnos nije zapravo linearna, kao što: različite težine ili različite razine prst vlaženje ukupan iznos struje je različit, i ukupno trenutne promjene i četiri pod-tekući ostatak od nelinearni odnos kapacitivni Touch Panel u ova četiri kuta prilagođene polarnom koordinatnom sustavu ima nema koordinata na porijeklo, nakon zanošenje kontroler može otkriti i vratiti, i nakon 4a / D je završena četiri vrijednosti protoka split do točke dodira u Kartezijev koordinatni sustav na X, Y koordinata vrijednost postupak izračuna je složen. Budući bez podrijetla, zanošenje kapacitivni zaslon je kumulativan, a kalibracija je često potrebno na gradilište. Kapacitivni dodir najudaljenije Silikatna stakla, štiti stakla od ogrebotina ali strah od noktiju ili tvrde predmete udaraljke, kucati mala rupa će povrijediti polukat ITO, bilo je povrijediti polukat ITO ili instalirati transportni proces ozljeda unutarnje površine ITO sloj, kapacitivni zaslon ne mogu raditi ispravno.