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Discussion Starter · #1 · (Edited)
Link to official LG C1 page,

KEY FEATURES
  • Self-lighting OLED: Perfect Black, Intense Color, Infinite Contrast
  • α9 Gen 4 AI Processor 4K with AI Picture Pro/Sound Pro
  • Dolby Vision IQ and Dolby Atmos
  • webOS + ThinQ AI w/ Magic Remote
  • Gaming: G-SYNC Compatible, FreeSync, VRR, ALLM
4x HDMI 2.1 40Gbps 4k 120Hz ports

Approximate average brightness testing in accurate HDR modes.
720-770 nits 10% window (CX was 650-700)
125-140 nits 100% window (CX was 120-130)

Launch MSRP pricing,
48" $1500
55" $1800
65" $2500
77" $3800
83" $6000

Current Theory
D-Nice has confirmed his US region model has the new 2021 LG panel (same as EVO). Others show this as well. Vincent Teoh in the UK has the white backed EU region model with the same old panel as the CX. This could be pure panel lottery, or some regions already have EVO panels in them.


Link to official LG G1 page,

KEY FEATURES

  • Gallery Design: Designed to put the spotlight on your content and complement your home's interior
  • Self-lighting OLED: Perfect Black, Intense Color, Infinite Contrast
  • α9 Gen4 AI Processor 4K with AI Picture Pro & AI Sound Pro
  • Dolby Vision IQ and Dolby Atmos
  • webOS & ThinQ AI w/ Hands-Free Voice Control
4x HDMI 2.1 40Gbps 4k 120Hz ports
ATSC 3.0 Tuner

Approximate average brightness testing in accurate HDR modes.
760-830 nits 10% window
150-170 nits 100% window

Launch MSRP pricing
55" $2200
65" $3000
77" $4500

No included stand, only flush wall mount. Legs are $100 extra



Break In Period

Attached are color slides, you can save them to a USB drive and follow the steps in the video above to run them during the first 100-200 hours when you aren't using the TV.


Black Crush or Low Level Detail Loss Fix

For grayscale luminance tracking only, not RGB balance. There were a couple steps where I saw red change more from the same increase than green and blue, but for the most part the balance stayed about the same. Used 55 OLED backlight in ISF Dark to target 150 lumens at 100 white, but this should apply to any brightness/gamma/mode in SDR.
2.5% + 10 RGB
5% + 13 RGB
7.5% + 13 RGB
10% + 15 RGB
15% + 11 RGB
20% + 10 RGB
25% + 8 RGB
30% + 7 RGB
35% + 5 RGB
40% + 5 RGB
45% + 2 RGB

For HDR,
22pt RGB settings,

Code Value - increase R, G, and B evenly
15/17 - +6
48/53 - +7
135/148 - +6
218/235 - +10
282/300 - +10
332/350 - +5
374/393 - +10
410/430 - +5
442/463 - +4
469/492 - +5
496/518 - +5
518/543 - +3



These values are what got the smoothest / best EOTF tracking in the low end of the grayscale on mine, with no effect to RGB balance (other than raising the dip in that section) or other negative effects.
Due to panel variance its possible these values could get another panel to overshoot the target, but for most of the ranges it takes quite a large jump to make much of a difference. So I would suggest starting with values 2-3 points lower than mine on one profile like filmmaker, and then the following values on ISF Dark (set all other settings equal as those two modes are very similar) then switch back and forth in dark scenes to see what looks better. The lowest levels need the most change, with 10% needing the biggest increase, and you want a smooth roll off from that point.

2.5% +12
5% +12
7.5% +12
10% +15
15% +12
20% +8
25% +5
30% +5
35% +5
40% +5


If you want to play it very safe to not overshoot, use between 3-8, but you will likely still have some detail loss, at least better than out of the box though.
 

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Discussion Starter · #2 · (Edited)



After about a hundred hours with the C1, the image has changed enough that I redid the initial settings with new ones that required less changes overall. Here is a video to settings for many modes and types of content. The written settings below are from earlier on and were what was used to compare with the CX so Ill leave them. Ill write up new recommended starting settings though.



Recommended settings post break in

Disable eco settings, and recommend disable AI settings

SDR Bright Room / TV Settings

ISF Expert Bright

OLED Brightness - 85-100
Contrast 85-90
Screen Brightness 50
Dynamic Contrast off
Peak Brightness off or low (will harm color accuracy)
Gamma 2.2
Black Level auto
Motion Eye Care off

Color Depth 50
Tint 0
Color Gamut Auto Detect
Fine Tune off
White Balance Warm 50

Sharpness 0
Super Resolution off
Noise Reduction off
MPEG Noise Reduction off
Smooth Gradation off or low
Cinema Screen on or personal preference
TruMotion Off or personal preference


SDR Dark Room / Movie Settings

ISF Expert Dark

OLED Brightness 55
Contrast 85
Screen Brightness 50
Dynamic Contrast off
Peak Brightness off
Gamma BT.1886
Black Level auto
Motion Eye Care off

Color Depth 50
Tint 0
Color Gamut Auto Detect
Fine Tune off
White Balance Warm 50

Sharpness 0
Super Resolution off
Noise Reduction off
MPEG Noise Reduction off
Smooth Gradation off or low
Cinema Screen on or personal preference
TruMotion Off or personal preference


SDR Game Settings

Game Optimizer mode

OLED Brightness 100
Contrast 97 (doesn't clip white, clips some color but needed for brightness)
Screen Brightness 50-52
Dynamic Contrast off
Peak Brightness off
Gamma 2.2
Black Level auto
Motion Eye Care off

Color Depth 55
Tint 0
Color Gamut Auto Detect
Fine Tune off
White Balance Warm 50

Sharpness 0
Super Resolution off
Noise Reduction off
MPEG Noise Reduction off
Smooth Gradation off
Cinema Screen off
TruMotion Off


HDR10 TV / Movie Settings

Cinema Home

OLED Brightness 100
Contrast 100
Screen Brightness 50
Dynamic Contrast off
HDR Tone Mapping off
Peak Brightness High
Gamma 2.2 (greyed out)
Black Level auto
Motion Eye Care off

Color Depth 50
Tint 0
Color Gamut Auto Detect
Fine Tune off
White Balance Warm 50

Sharpness 0
Super Resolution off
Noise Reduction off
MPEG Noise Reduction off
Smooth Gradation off or low
Cinema Screen on or personal preference
TruMotion Off or personal preference


HDR10 Game Settings

Game Optimizer

OLED Brightness 100
Contrast 100
Screen Brightness 50
Dynamic Contrast off
HDR Tone Mapping HGiG
Peak Brightness High
Gamma 2.2 (greyed out)
Black Level auto
Motion Eye Care off

Color Depth 55
Tint 0
Color Gamut Auto Detect
Fine Tune off
White Balance Warm 50

Sharpness 0
Super Resolution off
Noise Reduction off
MPEG Noise Reduction off
Smooth Gradation off
Cinema Screen off
TruMotion Off


Dolby Vision TV / Movie Settings

Cinema Home

OLED Brightness 100
Contrast 100
Screen Brightness 50
Dynamic Contrast off
Peak Brightness High
Gamma 2.2 (greyed out)
Black Level auto
Motion Eye Care off

Color Depth 50
Tint 0
Color Gamut Native (greyed out)
Fine Tune off
White Balance Warm 50

Sharpness 0
Super Resolution off
Noise Reduction off
MPEG Noise Reduction off
Smooth Gradation off or low
Cinema Screen on or personal preference
TruMotion Off or personal preference


Dolby Vision Game Settings

Game Optimizer

OLED Brightness 100
Contrast 100
Screen Brightness 50
Dynamic Contrast off
HDR Tone Mapping HGiG
Peak Brightness High
Gamma 2.2 (greyed out)
Black Level auto
Motion Eye Care off

Color Depth 55
Tint 0
Color Gamut Native (greyed out)
Fine Tune off
White Balance Warm 50

Sharpness 0
Super Resolution off
Noise Reduction off
MPEG Noise Reduction off
Smooth Gradation off
Cinema Screen off
TruMotion Off

May need to disable VRR/Gsync if Dolby Vision gaming isnt working at 4k 120Hz



Below are early / initial findings.



C1 on right, CX on left

Comparison video and settings videos are shot, just have to edit and upload tonight.

Bottom line between CX and C1, the C1 is improved slightly in multiple areas, but none are very noticeable except one. Very dark areas just above black are handled better on the C1. On the CX they are dark grey while the C1 is much darker without losing detail or crushing the blacks. Skin tones look a little better on the C1 as well, and red objects seem to have more volume or pop to them on the C1.

Color accuracy seems a little better, whites are slightly whiter, and it seems very slightly brighter. Nothing on the CX is better from what I can tell, so no steps back were taken.


Using the Disney Wow Blu-ray I adjusted each for no bright or dark clipping while having contrast high as possible and brightness low as possible. All motion, eco, AI, or image adjusting features disabled.


C1 settings are,
Expert bright for SDR movie/video content
OLED brightness 100 (for CX comparison)
Contrast 98
Screen brightness 56
Peak brightness off (only use for HDR)
Gamma bt1886
Black level Auto

Color depth 52
Tint 0
Color gamut Native
Fine tune all off
White balance W50

Sharpness 0
All clarity settings off


CX settings are
Expert bright room for SDR movie/video content

OLED light 100 (for C1 comparison)
Contrast 99
Brightness 50
Sharpness 0
Color 53
Tint R1

Dynamic contrast off
Super resolution off
Color gamut Wide
Gamma bt1886
White balance Warm2
Peak brightness off (only use for HDR)
All filters off
Black level Auto

3120410
3120411

3120413

3120418



3120419



C1 HDR Game Optimizer mode
OLED pixel brightness 100
Contrast 100
Screen brightness 50

HDR tone mapping HGiG
Peak Brightness High
Gamma 2.2 (greyed out)
Black level Auto

Color depth 52
Tint 0
Color gamut Auto
White balance W50

Sharpness 0
All filters off


CX HDR Game mode settings
OLED light 100
Contrast 100
Brightness 50
Sharpness 0
Color 52
Tint R1

Dynamic contrast off
Dynamic tone mapping HGiG
Super resolution off
Color gamut Auto
Gamma 2.2 (greyed out)
White balance Warm2

All filters off
Black level Auto

3120455


C1 has darker black areas without loss of detail and slightly brighter highlights giving higher perceived contrast.

3120458






3120459


Some images from the Snyder Cut in Dolby Vision. The CX still has a greenish tinge while the C1 leans a little more red. But have to say the C1 stands out more here with cleaner whites and better skin tones.

3120554

3120555

3120556
 

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Discussion Starter · #3 · (Edited)
Reserved post 3

I'll have a lengthier review here in the next couple of days.

Here is a shot of the 55" C1 by my 85" Sony X900H, and I wasn't expecting the difference I'm seeing. The X900H is no slouch and in an SDR bright colorful game like fortnite, it is brighter overall (especially given the size difference) but the contrast difference with the C1 is instantly noticable. As are the vastly superior viewing angles.

3120564


3120565


3120566
 
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Waiting for next year. Ridiculous that the Evo panel is reserved solely for the G1 and not the C1. Not even the top of the line 8K Z1 gets the Evo panel.
 

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Discussion Starter · #8 ·
Should I add the G1 to this thread like last year's thread had CX and GX, or do you think they are different enough now to warrant separate threads?
 

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Should I add the G1 to this thread like last year's thread had CX and GX, or do you think they are different enough now to warrant separate threads?
How about we wait until we understand whether they are based on the same panel or not...
 

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Discussion Starter · #11 ·
C1 vs CX comparison post updated with preliminary results.

I highly doubt the panels are any different. I'm struggling to see any difference between them, with the exception of upscaling on the C1 being a better. Out of box colors seem to have a little more depth to them on the C1, but that's only with very basic setting changes and not a full color calibration.
 
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C1 vs CX comparison post updated with preliminary results.

I highly doubt the panels are any different. I'm struggling to see any difference between them, with the exception of upscaling on the C1 being a better. Out of box colors seem to have a little more depth to them on the C1, but that's only with very basic setting changes and not a full color calibration.
Thanks for posting this. I'm assuming you'll get to it after some runtime, but how's the uniformity on both out of the box? Any DSE or serious banding?

It's interesting the scaling is better. I usually left that to a streaming box (Nvidia Shield) but that's not always an option.
 

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Hey guys I picked up the 77C1 and I keep having issues regarding ARC with my Denon receiver. I actually got it to work once by allowing the Denon reciever to use the TVAudio assistant. Unfortunately it hasn't worked since. I don't see the "DIG" icon and it won't turn on with the AV receiver. Oddly enough I turned off the display earlier and it turned off the Denon as well.

I have the HDMI cable connected to receiver on port 2 and I haven't changed cables from my previous 77C9(still feels odd typing this, LG really needs to name these sets differently). Does anyone have any ideas I can try? I'd rather not use an optical cable if I can help it.
 

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I don't know if this picture is showing raised blacks on the CX when gaming vs not raising them on the C1, or if something else is going on. Shadow detail is the same but blacks and really dark areas seem more grey on the CX.
View attachment 3120244
Does this mean that the raised black/gamma changes with VRR and flicker issues that were a hindrance in the CX has been solved on the C1? By the way does the C1 have the full 48gbps hdmi 2.1 bandwidth?
 

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Does this mean that the raised black/gamma changes with VRR and flicker issues that were a hindrance in the CX has been solved on the C1? By the way does the C1 have the full 48gbps hdmi 2.1 bandwidth?
Nope, 40 per some guys on YouTube.

Sent from my SM-G991U using Tapatalk
 

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Discussion Starter · #20 ·
I'm removing the preliminary C1 vs CX thoughts and pictures. For them being preliminary, they were quite wrong lol. At least I found out what was going on. The C1 color gamut was on "Auto" which really threw off color accuracy. Setting it to native (in SDR modes) was way better, less red push, and color depth and tint were now accurate at 51 and G1.

I reset both the C1 and CX and spent more time doing all the settings over with the Disney Wow Blu-ray, the Xbox calibration tool, and Lagom-lcd website. They are now both extremely even and when I get home from work will go through with more content to find differences if any.
 
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