LG 47LB5610 - Total Assembly line process; Adjustment Preparation; W;B adj. Objective & How-it-works

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Only for training and service purposes
5. Total Assembly line process
5.1. Adjustment Preparation
▪ W/B Equipment condition
CA210: LED → CH14, Test signal: Inner pattern(80IRE)
▪ Above 5 minutes H/run in the inner pattern. ("power on" key
of Adjustment remote control)
* The spec of color temperature and coordinate.
5.1.1. W/B adj. Objective & How-it-works
(1) Objective: To reduce each Panel’s W/B deviation
(2) How-it-works: When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range.
In order to prevent saturation of Full Dynamic range and
data, one of R/G/B is fixed at 192, and the other two is
lowered to find the desired value.
(3) Adj. condition: normal temperature
- Surrounding Temperature: 25 ± 5 °C
- Warm-up time: About 5 Min
- Surrounding Humidity: 20% ~ 80%
- Before White balance adjustment, Keep power on status,
don’t power off
* If Model is POLA model
* W/B Table( Netcast4.0 Model)
CA210 : CH 14, Test signal : Inner pattern (80IRE)
Normal line - Standard color coordinate and temprature using
CA-1000(by H/R time)
Aging chamber line - Standard color coordinate and temprature
using CA-1000(by H/R time)
* When Model produce in Gumi Factory at Winter(Jan,Feb)
Normal line
* AUO, Sharp, CSOT use Model(If Cool spec 13000K)
Mode Color Temp Color coordinate Remark
Cool (C50) 13,000 K
X=0.271 (±0.002)
Y=0.270 (±0.002)
<Test Signal>
- Inner pattern
for W/B adjust
- External white
pattern(80IRE,
204gray)
Medium(0) 9,300 K
X=0.286 (±0.002)
Y=0.289 (±0.002)
Warm(W50) 6,500 K
X=0.313 (±0.002)
Y=0.329 (±0.002)
NC4.0
Aging
time
(Min)
Cool Medium Warm
x y x y x y
271 270 286 289 313 329
1 0-2 282 289 297 308 324 348
2 3-5 281 287 296 306 323 346
3 6-9 279 284 294 303 321 343
4 10-19 277 280 292 299 319 339
5 20-35 275 277 290 296 317 336
6 36-49 274 274 289 293 316 333
7 50-79 273 272 288 291 315 331
8 80-119 272 271 287 290 314 330
9 Over 120 271 270 286 289 313 329
NC4.0
Aging
time
(Min)
Cool Medium Warm
x y x y x y
271 270 285 293 313 329
1 0-5 280 285 294 308 319 340
2 6-10 276 280 290 303 315 335
3 11-20 272 275 286 298 311 330
4 21-30 269 272 283 295 308 327
5 31-40 267 268 281 291 306 323
6 41-50 266 265 280 288 305 320
7 51-80 265 263 279 286 304 318
8 81-119 264 261 278 284 303 316
9 Over 120 264 260 278 283 303 315
NC4.0
Aging
time
(Min)
Cool Medium Warm
x y x y x y
271 270 286 289 313 329
1 0-5 286 295 301 314 328 354
2 6-10 284 290 299 309 326 349
3 11-20 282 287 297 306 324 346
4 21-30 279 283 294 302 321 342
5 31-40 276 278 291 297 318 337
6 41-50 274 275 289 294 316 334
7 51-80 273 272 288 291 315 331
8 81-119 272 271 287 290 314 330
9 Over 120 271 270 286 289 313 329
NC4.0 Cool Medium Warm
x y x y x y
spec 271 270 286 289 313 329
target 278 280 293 299 320 339
Case : Cool Mode
• Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
• Principle : To adjust the white balance without the
saturation, Fix the G gain to 172 (default data) and
change the others ( R/B Gain ).
• Adjustment mode : mode - Cool
Case : Medium / Warm Mode
• Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
• 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.
• Adjustment mode : Two modes - Medium / Warm