LG 55EA970T, Service Manual

Page: 19 / 105

- 19 -
LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
5.2.3. LED White balance table
5.2.3.1.Cool Mode
(1) Purpose : Especially G-gain fix adjust leads to the
luminance enhancement. Adjust the color
temperature to reduce the deviation of the
module color temperature.
(2) Principle : To adjust the white balance without the
saturation, Adjust the G gain more than 172 ( If
R gain or G gain is more than 255 , G gain can
adjust less than 172 ) and change the others
(R/B Gain ).
(3) Adjustment mode : mode – Cool
**For 55/65LA97 Models
* R-fix adjustment
Adjust modes (Cool), Fix the R gain to 210 (default data) and
change the others (G/B Gain ).
- Adjust the R gain more than 210 ( If G gain or B gain is less
than 0 , R gain can adjust more than 210 )
and change the others ( G/B Gain ).
Adjust two modes(Medium / Warm), Fix the one of R/G/B gain
to 192 (default data) and decrease the
others.
▪ If internal pattern is not available, use RF input. In EZ Adj.
menu 7.White Balance, you can select one of
2 Test-pattern: ON, OFF. Default is inner(ON). By selecting
OFF, you can adjust using RF signal in 216
Gray pattern.
5.2.3.2. Medium / Warm Mode
(1) Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
(2) Principle : To adjust the white balance without the
saturation, Fix the one of R/G/B gain to 192
(default data) and decrease the others.
(3) Adjustment mode : Two modes – Medium / Warm
5.2.4. OLED White balance table
5.2.4.1.Cool Mode
(1) Purpose : Especially B-gain fix adjust leads to the
luminance enhancement. Adjust the color
temperature to reduce the deviation of the
module color temperature
(2) Principle : To adjust the white balance without the
saturation, Adjust the B gain more than 192 ( If R
gain or G gain is more than 255 , G gain can
adjust less than 192 ) and change the others (
R/G Gain ).
(3) Adjustment mode : mode – Cool
5.2.4.2. Medium Mode
(1) Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
(2) Principle : To adjust the white balance without the
saturation, Fix the B gain to 192 (default data)
and decrease the others.
(3) Adjustment mode : mode – Medium
5.2.4.3. Warm Mode
(1) Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
(2) Principle : To adjust the white balance without the
saturation, Fix the W gain to 192 (default data)
and decrease the others.
(3) Adjustment mode : mode – Warm
● Standard color coordinate and temperature when using the
CA100+ or CA210 equipment
Mode Color coordinate Temp
△
uv
X Y
Cool 0.271±0.002 0.270±0.002 13000K 0.0000
Medium 0.285±0.002 0.293±0.002 9,300 K 0.000
Warm 0.313±0.002 0.329±0.002 6,500K 0.003
▪ Change reason : When vivid mode, more detail than other
company set.
● In case of Edge LED module, the color coordinates is
changing by aging, so you have to use the below table.
The Time Table of color coordinates by SET Aging Time
1) Edge LED Models(LA7xxx, LA8XXX, 55LA9600)_nomarl
line
GP3 Aging
time
(Min)
Cool Medium Warm
x y x y x y
271 270 285 293 313 329
1 271 270 285 293 313 329 342
2 3-5 280 285 294 308 319 340
3 6-9 278 284 292 307 317 339
4 10-19 276 281 290 304 315 336
5 20-35 275 277 289 300 314 332
6 36-49 274 274 288 297 313 329
7 50-79 273 272 287 295 312 327
8 80-119 272 271 286 294 311 326
9 Over 120 271 270 285 293 310 325