Uainishaji wa Mtihani

kusudi

Hakikisha kuwa bidhaa za kampuni zinakidhi mahitaji ya wateja, hutoa msingi wa ukaguzi wa bidhaa, na uhakikishe ubora wa bidhaa.

Upeo wa matumizi

Kiwango hiki kinatumika kwa bidhaa zote za moduli za TFT zinazozalishwa na XX.

Vifaa vya Upimaji

Mashine ya kupimia umeme, vifaa vya kujipima, glasi ya kukuza, taa ya umeme, caliper ya vernier

Sampuli ya mpango na angalia hali ya mazingira

Kitengo cha utengenezaji (au mchakato wa QC) hufanya ukaguzi kamili wa ukaguzi wa muonekano na mtihani wa utendaji wa umeme, na kwa kipimo cha saizi au ukaguzi maalum, kipande cha kwanza cha kila mfano kimechunguzwa na kujaribiwa 5pcs.

Kitengo cha ubora kinachukua 5pcs kwa sampuli ya kwanza ya kila mfano, na inachukua mpango wa sampuli ya GB / -2012 ya kawaida ya sampuli ya ukaguzi wa kuonekana, na kiwango cha ukaguzi wa jumla ni II.

Kiwango kisicho na sifa Kiwango kinachoruhusiwa (AQL) Tathmini ya kiwango cha ubora kinachostahiki
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jumla

Mtihani anahitaji kuvaa pete ya umeme na vitanda nane vya vidole kwa mikono yote miwili.Kama ni LCD bila polarizer iliyowekwa, vidole vyote vinapaswa kuvaa vitanda vya kidole.

Mtihani anaweza kuangalia au kulinganisha na jedwali la kulinganisha filamu.

Tafadhali rejelea sampuli ya jaribio la umeme ukitumia fixture ya jaribio na skrini ya kuonyesha.

Umbali kati ya macho ya mkaguzi na bidhaa ni 30 ~ 40 cm. Pembe ya kutazama ukaguzi ni digrii ± 15 kwenye uso wa mbele wa paneli ya wima ya kuonyesha na digrii ± 45 kwenye uso wa mbele wa jopo la onyesho lenye usawa (angalia takwimu hapa chini)

tft img1

Taa ya mazingira: 800 ~ 1200LUX kwa ukaguzi wa kuona

Joto la mazingira: 25 ± 5 ℃

Unyevu: 25 ~ 75% RH

Angalia kipengee

(1) Ufafanuzi wa kasoro za uhakika zinazosababishwa na paneli za ndani.

a) Matangazo mkali: dots angavu, yenye ukubwa wa kila wakati huonekana kwenye LCD chini ya muundo mweusi.

b) Dots za giza: Katika picha safi nyekundu, kijani kibichi, na hudhurungi, nukta zenye giza zenye ukubwa sawa zinaonekana kwenye LCD.

c) Pointi 2 karibu = jozi 1 = alama 2.

tft img2

Onyesha hundi

bidhaa maelezo Kiasi kinachokubalika MAJ MIN
Mambo muhimu bila mpangilio N3  
Pointi mbili zilizo karibu N≤0
Pointi mbili zilizo karibu N≤0
umbali Kiwango cha chini kati ya matangazo mawili angavu 5mm
doa nyeusi bila mpangilio N4  
Pointi mbili zilizo karibu N≤0
Pointi mbili zilizo karibu N≤0
Jumla ya matangazo ya giza na matangazo meupe N6  
umbali Umbali wa chini kati ya matangazo mawili angavu (matangazo meusi) 5mm  
Vidokezo vidogo 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

bidhaa maelezo Kiasi kinachokubalika 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