Finger­print Scan­ners to Dis­ap­pear

Smart­phone man­u­fac­tur­erS are work­ing to­wardS in­te­grat­ing the finger­print Scan­ner un­der the phone’S diS­play.

Gadgets and Gizmos (India) - - CONTENTS - By Nidhi SiN­gal il­lus­tra­tion by Raj Verma @nid­hisin­gal

The fu­ture of bio­met­ric au­then­ti­ca­tion in smart­phones – in-dis­play finger­print sen­sors



he finger­print scan­ner that we have got so ha­bit­u­ated to will soon cease to ex­ist in its cur­rent form. the bio­met­ric au­then­ti­ca­tion fea­ture will now be in­vis­i­ble, al­beit con­tin­u­ing to do its job well. in a move that will rev­o­lu­tionise the mo­bile phone in­dus­try, smart­phone man­u­fac­tur­ers are work­ing to­wards in­te­grat­ing the finger­print scan­ner right un­der the dis­play of the phone.

companies have been ex­per­i­ment­ing with the place­ment of the scan­ner, ever since smart­phones started pack­ing in ad­vanced tech­nol­ogy and tak­ing on sleeker forms – think edge-to-edge dis­play or bezel-less dis­play that leave lit­tle room for this now in­dis­pen­si­ble fea­ture. from be­ing a fix­ture at the rear of the smart­phone, like in the Sam­sung galaxy S8, to be­ing moved to the side with the power but­ton, like what Sony did al­though with lit­tle suc­cess, the finger­print scan­ner has lit­er­ally gone places. ap­ple fa­mously de­cided to get rid of it al­to­gether by in­tro­duc­ing the faceid tech­nol­ogy in the iphone X.

when Sy­nap­tics inc., a uS-based com­pany de­vel­op­ing hu­man in­ter­face so­lu­tions, came up with the tech­nol­ogy wherein sen­sors for finger­print bio­met­rics are em­bed­ded un­der the dis­play, it was a eu­reka mo­ment for phone companies. re­ferred to as clear id optical in­dis­play finger­print sen­sor, it has been de­signed for smart­phones with edge-to-edge displays and can be mounted only un­der an oled panel. once the fin­ger touches the dis­play, the oled dis­play il­lu­mi­nates the finger­print, the optical sen­sor scans it and sends it to the pro­ces­sor to match it against the reg­is­tered en­crypted tem­plate. this tech­nol­ogy de­liv­ers one-touch high-res­o­lu­tion scan­ning through the cover glass and works even if your fingers are wet, dry or cold. users can se­curely un­lock the de­vice from any an­gle, whether it’s on a desk or mounted on a holder in the car.

while the reg­u­lar finger­print bio­met­ric sys­tem is not en­tirely fool­proof, Sy­nap­tics clear id claims to of­fer su­pe­rior se­cu­rity. david hurd, cor­po­rate mar­ket­ing, Sy­nap­tics, ex­plains, “clear id uses Sy­nap­tics’ hard­ware (cmoS sen­sor and con­troller ic) and soft- ware al­go­rithms. Sy­nap­tics also of­fers its Sen­try­point se­cu­rity suite that pro­tects data end to end, from the finger­print sen­sor to the host, and lever­ages the lat­est in­dus­try stan­dards. Quan­tum matcher tech­nol­ogy is used for finger­print tem­plate match­ing and au­then­ti­ca­tion. also, Sy­nap­tics pureprint anti-spoof tech­nol­ogy helps dis­tin­guish be­tween fake or spoofed fin­ger­prints and the real thing; the driv­ers are reg­u­larly up­dated to com­bat new spoof­ing tech­niques and ma­te­ri­als.”

hav­ing been in the works for over four years, the sen­sors are now go­ing into mass pro­duc­tion. Sy­nap­tics is work­ing with top five oems (orig­i­nal equip­ment man­u­fac­tur­ers) who will adopt this tech­nol­ogy for their flag­ship smart­phones. chi­nese smart­phone brand Vivo’s X20 plus ud is the first ever smart­phone to ship with this tech­nol­ogy. doogee V is an­other smart­phone brand that has in­cor­po­rated the finger­print sen­sor un­der­neath its 6.2-inch dis­play.

one­plus, known to pack in the lat­est tech­nol­ogy in its flag­ship smart­phones, is ru­moured to have adopted this fea­ture in the one­plus 6 that is slated to launch this year. Sam­sung has, re­cently, ap­plied for a patent for its new phone dis­play that will elim­i­nate the space re­quired by var­i­ous sen­sors, paving the way for the in-dis­play finger­print sen­sor. al­though un­con­firmed, lg, oppo, Xiaomi and huawei are also ex­pected to in­clude this tech­nol­ogy in their flag­ship smart­phones this year.

there is some­thing in the works for smart­phones with lcd screens, too. Ja­pan dis­play inc., an lcd tech­nol­ogy com­pany, has come up with a trans­par­ent finger­print scan­ner that is built right into the glass of the dis­play. this has been achieved by op­ti­mis­ing the pixel eyes tech­nol­ogy that has touch de­tec­tion built into the glass sub­strate to de­tect changes in ca­pac­i­tance that oc­cur when an lcd screen is touched by a fin­ger. the tech­nol­ogy will have the ca­pa­bil­ity to de­tect re­cesses and ridges of a finger­print, and can deftly re­place the sil­i­con-based finger­print sen­sors in use to­day.

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