Test Bench

Hisense Laser TV 4K DLP Pro­jec­tor

Sound & Vision - - TEST REPORT - AG

FULL-ON/FULL-OFF Con­trast Ra­tio: 1,354:1

PRE-CAL­I­BRA­TION measurements were made with the Hisense Laser TV’S The­ater pre­set ac­tive. Post-cal­i­bra­tion measurements were made in the same mode. All measurements were made us­ing the 100-inch-di­ag­o­nal Screen In­no­va­tions Short Throw screen that’s in­cluded with the pro­jec­tor.

HD/SDR

AF­TER cal­i­bra­tion in The­ater mode, the pro­jec­tor’s black level mea­sured 0.020 ft-l and peak white 27.08 ft-l for a con­trast ra­tio of 1,354:1. An Ad­vanced Pic­ture Op­tions menu pro­vides var­i­ous Ac­tive Con­trast pre­sets, but none of these had any ef­fect on pic­ture con­trast; in­stead, they ap­peared to al­ter pic­ture gamma with neg­a­tive re­sults. Max­i­mum light out­put was mea­sured at 31.76 ft-l with con­trast set to max­i­mum in Vivid mode.

BE­FORE cal­i­bra­tion in The­ater mode with Low color tem­per­a­ture se­lected, the Laser TV dis­played mostly good grayscale track­ing, with the Delta Es av­er­ag­ing out to 3.2. Cal­i­bra­tion in the User mode im­proved that av­er­age to 1.2, with a high of 1.8 at 10 per­cent bright­ness. (Delta E is a fig­ure of merit that in­di­cates how closely a dis­play ad­heres to the Rec. 709 HD color stan­dard. Ex­perts gen­er­ally agree that lev­els be­low 3 are vis­i­bly in­dis­tin­guish­able from per­fect color track­ing.)

WITH the The­ater mode’s de­fault settings ac­tive, the pro­jec­tor’s mea­sured color points were some­what in­ac­cu­rate, with the Delta E av­er­ag­ing out to 6.3. Post-cal­i­bra­tion, the Delta E for color points aver­aged out to 2.3— a no­table im­prove­ment.

WITH the 1 Gamma pre­set se­lected, the Delta E for gamma in The­ater mode aver­aged 3.9. Post-cal­i­bra­tion, gamma im­proved sub­stan­tially, closely track­ing the 2.2 tar­get for most of its range with a high of 2.4 at 90 IRE.

UHD/HDR

WHILE it’s tech­ni­cally an Ul­tra HD dis­play, the Hisense Laser TV’S color re­pro­duc­tion ca­pa­bil­ity only ex­tends to the Rec. 709 (HDTV) gamut. The set’s Gamma 1 set­ting pro­vided the clos­est match to HDR’S EOTF (Elec­tro-op­ti­cal Trans­fer Func­tion, which is the spec­i­fied “gamma” for UHD), while its grayscale Delta E aver­aged out to 4.5 post-cal­i­bra­tion. Peak HDR light out­put in the Cal­i­brated HDR mode mea­sured 130 nits on a 10% white win­dow pat­tern and re­mained con­sis­tent across a range of win­dow pat­tern sizes, along with full-screen white.

PIC­TURE uni­for­mity was ex­cel­lent: White full-field test pat­terns showed only min­i­mal bright­ness drops be­tween the cen­ter and edges of the screen, and there was no vis­i­ble color shift­ing. Off-axis uni­for­mity was also ex­cel­lent. Our suite of video pro­cess­ing tests re­vealed mostly good per­for­mance, with the pro­jec­tor only trip­ping up on HD and SD 2:2 pull­down pat­terns, a not un­com­mon re­sult.—

AF­TER Cal­i­bra­tion

BE­FORE Cal­i­bra­tion

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