Manyleb Prawf

pwrpas

Sicrhewch fod cynhyrchion y cwmni'n cwrdd â gofynion cwsmeriaid, yn darparu sylfaen ar gyfer archwilio cynnyrch, a sicrhau ansawdd y cynnyrch.

Cwmpas y cais

Mae'r safon hon yn berthnasol i bob cynnyrch modiwl TFT a gynhyrchir gan XX.

Offer Profi

Peiriant mesur trydan, gosodiad prawf, chwyddwydr, lamp fflwroleuol, caliper vernier

Cynllun samplu a gwirio amodau amgylcheddol

Mae'r uned weithgynhyrchu (neu'r broses QC) yn cynnal arolygiad llawn ar gyfer archwilio ymddangosiad a phrawf perfformiad trydanol, ac ar gyfer mesur maint neu arolygiad arbennig, mae darn cyntaf pob model yn cael ei samplu a'i brofi 5cc.

Mae'r uned ansawdd yn mesur 5cc ar gyfer sampl gyntaf pob model, ac yn mabwysiadu cynllun samplu un-amser arolygu arferol GB / —2012 ar gyfer yr arolygiad ymddangosiad, a'r lefel arolygu gyffredinol yw II.

Lefel ddiamod Lefel a ganiateir (AQL) Asesiad safon ansawdd cymwys
Prif ddiffyg   Os yw'r maint yn ddiffygiol, derbyniwch 0 ffurflen
Yn ymostyngol  
cyfanswm

Mae angen i'r arholwr wisgo modrwy electrostatig ac wyth cot bys ar ei ddwy law. Os yw'n LCD heb polarydd ynghlwm, dylai'r holl fysedd wisgo cotiau bys.

Gall yr arholwr wirio neu gymharu â'r tabl cymharu ffilm yn weledol.

Cyfeiriwch at y sampl ar gyfer y prawf trydanol gan ddefnyddio gosodiad prawf a sgrin arddangos.

Y pellter rhwng llygaid yr arolygydd a'r cynnyrch yw 30 ~ 40 cm. Mae ongl wylio'r arolygiad yn ± 15 gradd ar wyneb blaen y panel arddangos fertigol a ± 45 gradd ar wyneb blaen y panel arddangos llorweddol (gweler y ffigur isod)

tft img1

Goleuadau amgylchedd: 800 ~ 1200LUX ar gyfer archwiliad gweledol

Tymheredd yr amgylchedd: 25 ± 5 ℃

Lleithder: 25 ~ 75% RH

Gwiriwch yr eitem

(1) Diffiniad o ddiffygion pwynt a achosir gan baneli mewnol.

a) Smotiau llachar: mae dotiau llachar, maint cyson yn ymddangos ar yr LCD o dan y patrwm du.

b) Dotiau tywyll: Yn y lluniau coch, gwyrdd a glas pur, mae dotiau tywyll gyda'r un maint yn ymddangos ar yr LCD.

c) 2 bwynt yn gyfagos = 1 pâr = 2 bwynt.

tft img2

Dangos siec

eitem disgrifiad Maint derbyniol MAJ MIN
Uchafbwyntiau ar hap N≤3  
Dau bwynt cyfagos N≤0
Dau bwynt cyfagos N≤0
pellter Y pellter lleiaf rhwng dau smotyn llachar 5mm
man tywyll ar hap N≤4  
Dau bwynt cyfagos N≤0
Dau bwynt cyfagos N≤0
Cyfanswm nifer y smotiau tywyll a smotiau llachar N≤6  
pellter Y pellter lleiaf rhwng dau smotyn llachar (smotiau tywyll) 5mm  
Uchafbwyntiau bach D≤can be ignored,<D≤, N≤4,spacing≧5mmD(Point diameter) √ 
Show fault V/H line/line crossover line etc. Not allowed  
Chromatic aberration, uneven; ripple; hot spot Pass 5% filter under 50% dark light Invisible, can be judged by limit sample if necessary    

*Note: Defects on the black matrix (outside the active area) are not considered defects

Visual inspection

eitem disgrifiad Maint derbyniol MAJ MIN
Point defect (display and appearance) Black spots, white spots, bright spotstft img4 D≤ignorable, <D≤, N≤4, spacing ≥5mm (Figure 2)  
Bad linearity (display and appearance) Black line, white line, bright line tft img5 W≤ignorable, <W≤,L≤, N≤4,  
Polarizer defect Dents, bubbles D≤ignorable, <D≤, N≤4,  
Scratch W≤ignorable,<W≤,L≤, N≤4  
Panel crack  tft img6 Not allowed
Damaged TFT non-lead side  tft img7 The distance between the minimum break point area, d1≧, cannot be ignored; d1<, N≦0d 1: the minimum distance between the break point area and the dot area
Damaged TFT pin side  tft img8 The alignment mark is damaged, the damaged angle>90  
W≦,L is ignored, but the pin cannot be damaged
W≦, (D depth)≦1/2 (1 layer glass thickness)
Damaged TFT lead side corner  tft img9 The swastika cannot be damaged. W≦,L≦5mm  
TFT / CF edge burr  tft img10 d2≦d 2: The distance between the burr and the edge of the TFT  
other Poor sealing glue Height: no more than length: no more than 80mm, the sealing glue must completely cover the crystal filling mouth and the penetration depth is greater than  
LCD dimensions The size refers to the design specification, the tolerance is ± mm, if it exceeds the tolerance range, it is unqualified  
The liquid crystal is not completely poured into the box Not allowed  
Gas enters the box during crystal filling Not allowed  
Smudge Stain that cannot be wiped off is not allowed to have liquid crystal on the surface or in the glass gap  
Module appearance Newton ring

tft img11

There are Newton rings and interference lines on the touch screen, rejected  
 tft img12 The pattern font is clear, the font line becomes thicker or thinner than the normal line width ≤1/3 (and ≤+/), no hyphenation. accept  
Drums on the touch screen Acceptable without affecting writing  
There are fish-eye bubbles on the surface of the touch screen FILM According to the inspection standard of the touch screen  
Poor assembly Module assembly does not match the assembly instructions Reject  
Poor assembly The assembly does not meet the process requirements (fixed double-sided tape or shading tape is not attached, etc.) Reject  
The connection between the components is not strong (the glass is separated from the backlight, etc.) Reject  
Defects when attaching transfer paper Insufficient adhesion to tear off the protective film Reject  
Attach position Does not meet the specifications, rejected  
Attaching angle Attached to the edge of the LCD edge angle is greater than ±15 degrees, rejected  
Poor coding   Does not meet the document requirements  
Other items PCBA, HSC, FPC, backlight, etc. Refer to "LCM Finished Product Inspection Specification" ~ conduct inspection    

Remarks:

1. Ignore any defects on the protective film of the polarizer, such as scratches, bubbles and particles on the protective film.

2. The angle of all damage must be greater than 90 degrees as shown on the right.

3. If the customer has specified requirements according to customer requirements.

tft img3