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)
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.
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 spots |
D≤ignorable, <D≤, N≤4, spacing ≥5mm (Figure 2) | √ | ||
| Bad linearity (display and appearance) | Black line, white line, bright line  |
W≤ignorable, <W≤,L≤, N≤4, | √ | ||
| Polarizer defect | Dents, bubbles | D≤ignorable, <D≤, N≤4, | √ | ||
| Scratch | W≤ignorable,<W≤,L≤, N≤4 | √ | |||
| Panel crack |  |
Not allowed | √ | ||
| Damaged TFT non-lead side |  |
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 |  |
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 |  |
The swastika cannot be damaged. W≦,L≦5mm | √ | ||
| TFT / CF edge burr |  |
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
|
There are Newton rings and interference lines on the touch screen, rejected | √ | ||
 |
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.
