Sony x900h television
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| Basic Information | |
|---|---|
| Release Year | 2020 |
| Product Type | |
| In Production | |
| Official Website | |
The Sony X900H (XH90 in Europe) Television is a 4K LCD TV produced by Sony in 2020.
Anti-consumer instances
The 4K120 blur issue
Sony advertised this TV in 2020 as supporting "4K120" feature[1] defined in HDMI 2.1 specifications[2], but the feature is still not fully supported, at least not exactly how it is defined in the referenced HDMI 2.1 specifications nor how an average person/buyer would be led to believe. The official specification states that 4K@120Hz enables ultra-fast motion UHD images to be crisp and razor sharp and this image from the same source defines the 4K Ultra HD resolution as 3840 horizontal pixels and 2160 vertical pixels, which is crucial for this case.
Sony started selling the TV with no support for 4K120 feature claiming it will be available via a future firmware update, which it has been. However, their implementation was very deceptive towards the consumers because the effective resolution this TV can display when outputting 4K120 content is 3840 horizontal and 1080 vertical pixels (even though TV is reporting 3840x2160 resolution in this case). A very simple close visual inspection is enough to see the degrade in image quality compared to 4K60, and a thorough pixel count will prove that the image resolution at 4K120 is 3840x1080 stretched vertically to fit the 2160 physical pixels.
This issue is ultimately manifested as vertical blur, because every 2 vertical pixels are duplicated instead of being unique.
Sony never fixed the blur issue in their X900H TV, as evident by the hundreds of people in the relevant topic at AVS forum [3]
Following this they decide to band-aid hoping nobody would notice by applying a sharpening filter as claimed in this article [4], which is a text version of a YouTube video from the reputable TV tester Vincent Teoh.[5]
References
- ↑ "Full Specifications and Features of the 4k120" - archive.org - archived 2021-01-11
- ↑ "8K60 / 4K120 Specs" - archive.org - archived 2020-11-12
- ↑ "Owner's Thread for the Sony X900H (No Price Talk)" - avsforum.com - accessed 2025-02-03 (Archived)
- ↑ "Sony fixes 4K@120Hz blurriness on X900H/XH90 TVs by… applying a sharpening filter" - videocardz.com - accessed 2025-02-03 (Archived)
- ↑ "Sony X900H/ XH90 4K@120Hz Blur Sharpened by Firmware Update 6.0414" - youtube.com - accessed 2025-02-03 (Archived)