Hi Everyone,
I just recently bought a Prism+ TV Q65-QE. I've been using it for a while now.
But I notice this very weird issue with HDR. we all know that prism+ TV widely do advertise its specs as HDR.
I tried watching HDR content on disney+ and netflix using its built-in android TV app.
all 4K HDR content looks pale, looks so dark and sometimes its already watchable
I thought it could be the brightness settings but everything seems okay, I tried some other content on disney+ and netflix that is mark as HD. Surprisingly the visuals are WAY More watchable, Clear. A night and day difference.
so i had to isolate to see what is wrong. i bought an GCCw/TV hub. the new version and it works fine.
Does anyone notice these issues on your Prism+ , i called getting support today but there had been no productive response other than saying they escalate their case on their TV team.
Hopefully someone from here can share their experiences.
Thank you in advance!
The entire lineup of Prism+ do not have local dimming system, as such it is safe assumption that all their TVs will be hovering around 200-400 nits of brightness as we've seen in TVs without local dimming systems.
Here's an example of an IPS TV without local dimming system (similar setup as seen in prism TVs):
https://www.rtings.com/tv/reviews/lg/un7300We can see that brightness is just moderately enough for SDR and clearly insufficient for HDR.
This is insufficient for HDR as it requires at least 700 nits to make bright highlights pop. Additionally the entire Prism line up are equipped with IPS panel which suffers from poor contrast ratio as they hover around 700:1 - 1200:1 while TVs with VA Panels can have anywhere from 3000:1 - 7000:1. This means that VA panels can display on average 4x more deeper blacks and dark saturated colors than IPS panels. IPS panels will look washed out/hazy in comparison to a TV with a VA panel.
If you are serious about HDR, get a TV with a VA panel and Full-Array Local Dimming System. These 2 are the minimum must have.
Keep in mind that when we talk about brightness, its basically how bright a TV can be in various scenes. Some scenes in movies or other content will be dark with a small portion of the screen being lit up to 1000 nits (a scenario where a character uses a candle in a dark room or a scene depicting a campfire at night in a forest). To be able to brighten just that small area of the screen where the bright object is while keeping the rest of the screen dark and rich in color, the screen needs to have a local dimming system which can control the backlight individually. All current Prism TVs as advertised are direct/edge lit without local dimming (its backlighting system cannot individually dim the LEDs behind the panel). It is impossible to go over 400-500 nits on a TV without local dimming as that would mean brightening even the dark areas of the content resulting in raised black levels to an intolerable extent, making all the dark colors look faded/washed out.
Do not be fooled by the advertisements as they can claim anything without evidence. Trust reputable reviewers with actual calibration tools who gives unbias feedback an actual data to back their claims.
Reviewers such as RTINGS can be trusted for their data as they have already measured more than 300 TVs from major brands with a consistent test methodology:
https://www.rtings.com/tv/reviews
Refer here for a more detailed feedback on why VA instead of IPS:
https://forums.hardwarezone.com.sg/threads/sian-tv-spolit.6508207/