An Operating Methodology of SPC System in LCD Industries

Glass_Id PT_01 PT_02 … PT_0n 평균 표준편차

Glass_001 x₁₁ x₁₂ ^… x_1n x₁ s₁

Glass_002 x₂₁ x₂₂ ^… x_2n x₂ s₂

⋮ ⋮ ⋮ ⋮ ⋮ ⋮ ⋮

Glass_00k x_k1 x_k2 … x_kn x_k s_k

Line Plot (By Zone)

1 3 5 7 9 11 13 15 17 19 2 1 23 25 27 29

GlassId 9.8

10.0 10.2 10.4 10.6 10.8 11.0 11.2 11.4 11.6

THK

Zone 1 Zone 2 Zone 3 Zone 4

Univariate Tests of Significance for THK Sigma-restricted parameterization Effective hypothesis decomposition Effect

SS Degr. of Freedom

MS F p

Intercept Zone Error

13568.52 1 13568.52 169858.2 0.000000

6.43 3 2.14 26.8 0.000000

9.27 116 0.08

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E k E Q O

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SixGraph X-bar and S Chart: THK

X-bar: 44.001 (44.001); Sigma: .00955 ; n=24

5 10 15 20 25

43.985 43.990 43.995 44.000 44.005 44.010 44.015 44.020

43.988 44.001 44.014

Normal Probability Plot

43.96 43.97 43.98 43.99 44.00 44. 01 44.02 44. 03 44.04 -4

-3 -2 -1 0 1 2 3 4

0.01 0.15 0.50 0.85 0.99

Std.Dv.: .00898 (.00898); Sigma: .00326; n=24

5 10 15 20 25

-0.002 0.002 0.006 0.010 0.014 0.018 0.022

0.0000 .00898 .01875

Ca pability P lot

43.94 43.9543.96

43.9743.98 43.9944.00

44.0144.02 44.0344.04

44.0544.06 Spec.

Limits Overall Within

Individual Plot

X -b ar : 44.001 (44.001 ); Si gma: 0. 0095 5; n= 24

5 10 15 20 25

43.96 43.97 43.98 43.99 44.00 44.01 44.02 44.03 44.04

43.988 44.001 44.014

Capability Histogram

43.94 43.9543.96

43.9743.98 43.9944.00

44.0144.02 44.0344.04

44.0544.06

LSL -3.*S Nominal +3.*S USL

0 10 20 30 40 50 60

Within SD: .0095; Cp: 1.745; Cpk: 1.702 Overall SD: .0099; Pp: 1.684; Ppk: 1.641 LSL: 43.95; Nom.: 44.00; USL: 44.05