JVC D-ILA DLA-RS640 Instructions Manual page 40

Gamma Adjustment
255
Bright
D" D
0
Dark
0
Dark
Gamma Adjustment When Viewing HDR Contents (Tone Mapping)
"HDR(ST.2084)" gamma is the PQ curve adopted by HDR10. Fine adjustments can be made according to the screen
size and environment although the default settings for viewing with the projector have been adjusted to allow optimum
viewing.
Default settings when viewing HDR contents of this projector
Picture Mode
Gamma
Estimated Screen Size
Estimated MaxCLL/MaxFALL : MaxCLL 1000 nits, MaxFALL 400 nits
Picture tone adjustment method
Picture Tone
.
When Picture Tone is set to "-"
(The entire screen becomes dark.)
Screen size is smaller than estimated
0
MaxFALL/MaxCLL value is higher than
0
estimated (P. 59)
Screen becomes brighter in the course of
0
viewing
Bright/dark area adjustment method
Dark Level
.
(―) To enhance the contrast
Bright Level
.
(―) To enhance the gradation of highlight areas
40
Gamma Curve
A
B
255
C
Input Value Bright
: HDR
: HDR(ST.2084)
: 90 to 120 inch (screen gain 1.0)
.
.
.
When the gamma curve is a straight line:
0
The brightness and contrast of the video input will be
the same as that of the video output.
Area for which the gamma curve is above the straight
0
line (A):
Video output appears brighter than the input.
Area for which the gamma curve is below the straight
0
line (B):
Video output appears darker than the input.
Area for which the slope of the gamma curve is steep
0
(midtone) (C):
The grayscale range of the video output becomes
wider, and the contrast increases (D"D').
0
When Picture Tone is set to "+"
(The entire screen becomes brighter.)
Screen size is bigger than estimated
0
MaxFALL/MaxCLL value is lower than
0
estimated (P. 59)
Screen becomes darker in the course of
0
viewing
0
(+) To make the dark area information more
visible
0
(+) To enhance the contrast