Specifikacija testa

namen

Prepričajte se, da izdelki podjetja izpolnjujejo zahteve kupcev, zagotavljajo osnovo za pregled izdelkov in zagotavljajo kakovost izdelkov.

Področje uporabe

Ta standard velja za vse izdelke modulov TFT, ki jih proizvaja XX.

Preskusna oprema

Električni merilni stroj, preskusna naprava, povečevalno steklo, fluorescenčna sijalka, nonier

Načrt vzorčenja in preverjanje okoljskih pogojev

Proizvodna enota (ali procesna kontrola kakovosti) opravi popoln pregled za pregled videza in preizkus električne zmogljivosti, za merjenje velikosti ali poseben pregled pa se vzame prvi kos vsakega modela in testira 5 kosov.

Enota za kakovost meri 5 kosov za prvi vzorec vsakega modela in sprejme enkraten načrt vzorčenja GB / —2012 za enkratni pregled za pregled videza, splošna raven pregleda pa je II.

Nekvalificirana raven Dovoljena raven (AQL) Kvalificirana ocena standarda kakovosti
Glavna pomanjkljivost   Če je velikost okvarjena, 0 prejme 1 vrnitev
Pokoren  
skupaj

Izpraševalec mora nositi elektrostatični obroč in osem postelj za prste na obeh rokah. Če gre za LCD brez pritrjenega polarizatorja, morajo vsi prsti nositi posteljice za prste.

Izpraševalec lahko vizualno preveri ali primerja s tabelo za primerjavo filmov.

Oglejte si vzorec za električni preskus z uporabo preskusne naprave in zaslona zaslona.

Razdalja med očmi inšpektorja in izdelkom je 30 ~ 40 cm. Pregledni kot gledanja je ± 15 stopinj na sprednji površini navpične zaslonke in ± 45 stopinj na sprednji površini vodoravne zaslonke (glej sliko spodaj)

tft img1

Okoljska osvetlitev: 800 ~ 1200LUX za vizualni pregled

Temperatura okolja: 25 ± 5 ℃

Vlažnost: 25 ~ 75% RH

Preverite element

(1) Opredelitev točkovnih napak, ki jih povzročajo notranje plošče.

a) Svetle lise: pod črnim vzorcem se na LCD-prikazovalniku pojavijo svetle pike konstantne velikosti.

b) Temne pike: na čisto rdečih, zelenih in modrih slikah se na LCD-prikazovalniku prikažejo temne pike z enako velikostjo.

c) 2 sosednji točki = 1 par = 2 točki.

tft img2

Pokaži ček

element opis Sprejemljiva količina MAJ MIN
Poudarki naključen N≤3  
Dve sosednji točki N≤0
Dve sosednji točki N≤0
razdalja Najmanjša razdalja med dvema svetlima točkama 5 mm
temna lisa naključen N≤4  
Dve sosednji točki N≤0
Dve sosednji točki N≤0
Skupno število temnih in svetlih lis N≤6  
razdalja Najmanjša razdalja med dvema svetlima pikama (temne lise) 5 mm  
Majhni poudarki 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

element opis Sprejemljiva količina 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