In a departure for JVC, the company didn’t announce new D-ILA projector models at CEDIA Expo in September 2019. Instead, JVC’s key announcement at the show was a firmware update for the native 4K projector line it had unveiled at the previous CEDIA Expo in 2018. (Supported models include the DLA-NX9, DLA-NX7, DLA-NX5, DLA-RS3000, DLA-RS2000, and DLA-RS1000.) This update adds new features including proper 16x9 internal scaling when using a Panamorph “DCR” anamorphic lens (labeled as Anamorphic D) and new screen offsets for calibration purposes. But the most beneficial update by far is dynamic tone mapping, a feature that sets JVC apart as the only front projection brand on the market to offer a true “frame by frame” solution (LG’s HU85LA ultra-short-throw projector also features frame by frame tone mapping) for displaying HDR10 content.
A STATIC APPROACH
Projector owners so far have faced an uphill battle to optimize image quality for HDR sources. That’s mainly because HDR formats were developed not with consumer projection in mind, but rather flat-panel TVs capable of delivering massive light output. But even knowing the brightness limitations of their displays, projector owners may also want to take advantage of improvements offered by HDR such as higher video bit-depth and wide color gamut.
For a projector to work with HDR, it must employ what is known as a “tone map.” In a nutshell, this is a method for compressing a large amount of video dynamic range into the smaller space that the projector is capable of reproducing. Unfortunately, there’s no standard for tone mapping, so each manufacturer brings a different approach to the process.
Bu hikaye Sound & Vision dergisinin February - March 2020 sayısından alınmıştır.
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Bu hikaye Sound & Vision dergisinin February - March 2020 sayısından alınmıştır.
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