Testspesifikaasje

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Soargje derfoar dat de produkten fan it bedriuw foldogge oan klanteasken, in basis jouwe foar produktynspeksje, en soargje foar kwaliteit fan it produkt.

Tapassingsberik

Dizze standert is fan tapassing op alle produkten fan TFT-modules produsearre troch XX.

Testapparatuer

Elektryske mjitmasine, testapparatuer, fergrutglês, tl-lampe, skjirrekliper

Samplingsplan en kontrolearje omjouwingsbetingsten

De produksje-ienheid (as proses QC) fiert folsleine ynspeksje út foar uterlikynspeksje en elektryske prestaasjetest, en foar maatmjitting of spesjale ynspeksje wurdt it earste stik fan elk model 5 stiks sampled en test.

De kwaliteitseenheid mjit 5 stuks foar it earste stekproef fan elk model, en oannimt it GB / —2012 normale ynspeksje ienmalich samplingsplan foar it uterlik ynspeksje, en it algemiene ynspeksjenivo is II.

Unkwalifisearre nivo Tastean nivo (AQL) Kwalifisearre kwaliteitsnormale beoardieling
Wichtichste tekoart   As de grutte defekt is, ûntfange 0 1 werom
Underdanich  
totaal

De ûndersiker moat in elektrostatyske ring en acht fingerbêdden oan beide hannen drage. As it in LCD is sûnder in polarisearder oan te sluten, moatte alle fingers vingerbotten drage.

De ûndersiker kin fisueel kontrolearje of ferlykje mei de filmferlikingstabel.

Sjoch asjebleaft nei it stekproef foar de elektryske test mei testbefestiging en werjaan skerm.

De ôfstân tusken de eagen fan 'e ynspekteur en it produkt is 30 ~ 40 sm. De kijkhoek fan de ynspeksje is ± 15 graden op it foargrûn fan it fertikale werjaanpaniel en ± 45 graden op it foargrûn fan it horizontale werjaanpaniel (sjoch de figuer hjirûnder)

tft img1

Omjouwingsferljochting: 800 ~ 1200LUX foar fisuele ynspeksje

Omjouwingstemperatuer: 25 ± 5 ℃

Fochtigens: 25 ~ 75% RH

Item kontrolearje

(1) Definysje fan puntdefekten feroarsake troch ynterne panielen.

a) Ljochte flekken: ljochte punten mei konstante grutte ferskine op it LCD ûnder it swarte patroan.

b) Donkere stippen: Yn 'e suvere reade, griene en blauwe plaatsjes ferskine donkere stippen mei deselde grutte op it LCD.

c) 2 neistlizzende punten = 1 pear = 2 punten.

tft img2

Tsjek sjen litte

ûnderdiel beskriuwing Akseptabele kwantiteit MAJ MIN
Hichtepunten willekeurich N≤3  
Twa oanswettende punten N≤0
Twa oanswettende punten N≤0
ôfstân Minimale ôfstân tusken twa ljochte plakken 5mm
tsjuster plak willekeurich N≤4  
Twa oanswettende punten N≤0
Twa oanswettende punten N≤0
Totaal oantal donkere spots en ljochte spots N≤6  
ôfstân Minimale ôfstân tusken twa ljochte plakken (donkere plakken) 5mm  
Lytse hichtepunten 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

ûnderdiel beskriuwing Akseptabele kwantiteit 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