Spesifikasi Tes

tujuane

Priksa manawa produk perusahaan memenuhi syarat pelanggan, nyedhiyakake basis kanggo pamriksa produk, lan njamin kualitas produk.

Lingkup aplikasi

Standar iki ditrapake kanggo kabeh produk modul TFT sing diproduksi dening XX.

Alat Tes

Mesin ukur listrik, perlengkapan uji, kaca pembesar, lampu neon, kaliper vernier

Rencana sampling lan priksa kahanan lingkungan

Unit manufaktur (utawa proses QC) nindakake inspeksi lengkap kanggo inspeksi tampilan lan tes kinerja listrik, lan kanggo pangukuran ukuran utawa inspeksi khusus, potongan pertama saben model diconto lan dites 5 pcs.

Unit kualitas ngukur 5 pcs kanggo conto pisanan kanggo saben model, lan nggunakake rencana sampel sampling inspeksi normal GB / —2012 kanggo inspeksi tampilan, lan level inspeksi umum yaiku II.

Tingkat sing ora nduweni kualifikasi Tingkat sing diidini (AQL) Pambiji standar kualitas sing mumpuni
Kekirangan utama   Yen ukurane rusak, 0 nampa 1 bali
Ngalahake  
gunggunge

Pemeriksa kudu nganggo cincin elektrostatik lan wolung cot driji ing loro tangan. Yen LCD tanpa polarizer sing dipasang, kabeh driji kudu nganggo cot driji.

Panliti bisa mriksa utawa mbandhingake kanthi visual karo tabel perbandingan film.

Mangga waca conto kanggo tes listrik nggunakake perlengkapan tes lan layar tampilan.

Jarak antarane mripat inspektur lan produk yaiku 30 ~ 40 cm. Sudut tampilan inspeksi yaiku ± 15 derajat ing permukaan ngarep panel tampilan vertikal lan ± 45 derajat ing permukaan ngarep panel tampilan horisontal (deleng gambar ing ngisor iki)

tft img1

Lampu lingkungan: 800 ~ 1200LUX kanggo inspeksi visual

Suhu lingkungan: 25 ± 5 ℃

Asor: 25 ~ 75% RH

Item mriksa

(1) Definisi cacat titik sing disebabake panel internal.

a) Titik sing padhang: titik sing padhang lan ukuran tetep katon ing LCD kanthi pola ireng.

b) Titik peteng: Ing gambar abang, ijo, lan biru murni, titik-titik peteng kanthi ukuran sing padha katon ing LCD.

c) 2 poin jejer = 1 pasangan = 2 poin.

tft img2

Tampilake mriksa

barang katrangan Jumlah sing bisa ditampa MAJ MIN
Sorotan acak-acakan N≤3  
Rong titik jejer N≤0
Rong titik jejer N≤0
kadohan Jarak minimal antarane rong titik sing padhang 5mm
titik peteng acak-acakan N≤4  
Rong titik jejer N≤0
Rong titik jejer N≤0
Jumlah total bintik peteng lan bintik padhang N≤6  
kadohan Jarak minimal antarane rong titik padhang (bintik peteng) 5mm  
Sorotan cilik 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

barang katrangan Jumlah sing bisa ditampa 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