Kiem tra LCD: Chon cong cu kiem tra man hinh dung
Lan kiem tra cuoi 2026-05-08. Bai kiem tra man hinh duoc lien ket tu trang nay chay trong trinh duyet cua ban tren chinh thiet bi cua ban - chinh bai kiem tra khong thu thap hoac tai len bat ky hinh anh nao cua man hinh.
Bon cum tu co cung mot cong viec
Nguoi ta go cung mot y dinh kiem tra man hinh theo bon cach khac nhau. Kiem tra lcd doc nhu mot dong tu; test lcd doc nhu mot danh tu; bo kiem tra lcd doc nhu mot cong cu; test lcd online them mot uu tien giao hang. Cac bo tim kiem xem dam dam day la cac truy van rieng biet va xep hang cac trang hoi khac nhau cho moi truy van, nhung cong viec coban giong nhau: cac mau dac toan man hinh de mat nguoi co the phat hien bat ky pixel hoac den nen nao khong cu xu giong nhung pixel ben canh. Do do chon cong cu dung khong phai la chon giua cac cong cu "test LCD" - ma la dinh tuyen y dinh thuc su cua ban (pixel tam nen? be mat cam ung? do chinh xac mau? bang chung bao hanh?) den cong cu dung.
Bang quyet dinh ben duoi anh xa moi y dinh pho bien den cong cu hoac huong dan giai quyet no trong mot cu nhan. Moi cong cu lien ket chay trong trinh duyet ma khong tai len thu gi; cac huong dan ben duoi cho cau chuyen dai hon khi cau tra loi mot dong khong du.
Bang quyet dinh - cong cu nao cho dieu ban muon kiem tra
| Dieu ban muon kiem tra | Lam gi | Cong cu / huong dan |
|---|---|---|
| Pixel chet, pixel ket, loi sub-pixel tren man hinh laptop, monitor hoac dien thoai | Chay chu trinh mau toan man hinh | LCD Test |
| Ro ri den nen, mang sang gan cac canh, do sang khong deu tren mau den dac | Chay chu trinh mau, tap trung vao khung toan den trong phong toi | LCD Test |
| Sai lech mau, tai tao mau sai, troi can chinh | Chay chu trinh mau va so sanh moi khung voi mot tham chieu duoc biet | LCD Test |
| Diem chet tren man hinh cam ung, cham ma, loi chi o canh, loi digitizer dai doc | Chay bai test theo dau son tren be mat cam ung, khong phai tren tam nen | Cach kiem tra man hinh cam ung tim diem xau |
| Camera lat guong preview vs tep da luu | Chay bai test camera (cong cu khac, y dinh khac) | Camera Test |
| Muc microphone, tat tieng mic, dinh tuyen tai nghe | Chay bai test microphone | Microphone Test |
| "Day la man hinh LED hay LCD va co quan trong cho bai test khong" | Doc bai giai thich LED-vs-LCD truoc | Test LED vs test LCD - cai nao ap dung cho man hinh cua ban |
| Xay dung bang chung de tra mot monitor theo bao hanh vi pixel chet | Chay chu trinh, chup anh moi loi tu khoang cach co dinh, luu anh chup man hinh | Cach kiem tra pixel chet truoc khi tra mot monitor |
| Cong cu online vs ung dung cai dat cho kiem tra man hinh | Doc bai so sanh do chinh xac online-vs-ung-dung truoc | Test man hinh online vs ung dung - cai nao chinh xac hon |
Cach chay test LCD trong 60 giay
Quy trinh day du cho truong hop pho bien nhat - kiem tra man hinh laptop, monitor hoac dien thoai vi pixel chet va van de den nen - mat khoang mot phut tu dau den cuoi. Mo cong cu LCD Test. Nhan F11 (hoac tuong duong tren macOS / iPad) de vao che do toan man hinh cua trinh duyet de bai test lap day moi pixel cua tam nen; chrome cua so va thanh tac vu cua he dieu hanh se che giau mot dai pixel o moi ben. Nhan hoac cham qua chu trinh mau - do dac, xanh la dac, xanh lam dac, trang dac, den dac, va gradient xam. Tren moi mau, tim bat ky cham hoac mang nao khong khop voi mau dac xung quanh. Mot pixel chet xuat hien nhu mot cham den tren cac khung mau va bat ky mau nao khac voi den tren khung den. Mot pixel ket hien thi cung mau bat ke khung. Ro ri den nen xuat hien nhu mot mang sang gan goc hoac canh tren khung den, dac biet ro rang trong phong toi. Sai lech mau xuat hien nhu mot sac thai tren khung trang so voi mot tham chieu duoc biet (mot to giay trang thuan in ra giu ben canh man hinh la mot kiem tra nhanh).
Neu ban tim thay mot loi va muon su dung ket qua cho mot lan tra hang bao hanh hoac ticket ho tro cua nha san xuat, chup anh loi voi mot camera rieng (dien thoai cung duoc) tu khoang cach co dinh voi man hinh o do sang toi da. Luu anh cong voi anh chup man hinh cua khung test de nhan vien ho tro co the thay chinh xac loi xuat hien tren khung mau nao. Quy trinh thu thap bang chung day du o tai cach kiem tra pixel chet truoc khi tra mot monitor; phan loai pixel chet (chet vs ket vs sub-pixel) o tai huong dan kiem tra pixel chet.
Bo kiem tra LCD thuc su kiem tra cai gi
Mot "bo kiem tra LCD" - dia la cong cu trinh duyet hay ung dung cai dat - lam mot dieu co ban: lai tam nen qua cac tin hieu tham chieu duoc biet (mau dac, gradient, mau) de mat nguoi co the phat hien bat ky sai lech nao tu dau ra mong doi. Bo kiem tra LCD dua tren trinh duyet nhu LCD Test cua chung toi su dung API toan man hinh cua trinh duyet cong voi mot div lap day viewport voi mot mau dac (CSS background-color) cho moi khung; vong lap la vai dong JavaScript chuyen tien qua mot chuoi mau co dinh. Chinh viec kiem tra duoc thuc hien boi mat ban - cong viec cua cong cu la cung cap mot tin hieu mau dac toan man hinh dang tin cay de bat ky loi nao phia tam nen tro nen ro rang qua tuong phan.
Bai giai thich dai hon ve cac kiem tra ma mot test LCD phat hien (tai tao mau, phat hien pixel chet, dong nhat den nen, xap xi thoi gian phan hoi) o tai test LCD - no kiem tra cai gi. Goc "khi nao toi nen chay mot bai" (sau mot chuyen bay dai, sau mot lan roi, truoc han bao hanh, khi man hinh trong sai nhung ban khong noi duoc cai gi sai) o tai test LCD lam gi va khi nao chay.
Test LCD online vs ung dung cai dat
Cau hoi tiep theo pho bien nhat sau khi chon cong cu la liec mot bai test LCD dua tren trinh duyet co chinh xac nhu mot ung dung cai dat nhu UFO Test hoac Eizo Monitor Test hoac mot trong cac tien ich kiem tra tam nen chuyen biet. Cau tra loi ngan la co cho cac cong viec pixel chet va ro ri den nen, voi hai luu y: trinh duyet phai o che do toan man hinh (neu khong chrome cua so va thanh tac vu cua he dieu hanh che giau mot dai pixel va ban se bo lo bat ky loi nao o do), va trinh duyet phai ton trong khong gian mau ban dia cua tam nen (hau het cac trinh duyet hien dai lam, nhung mot tam nen gam mau rong chay o che do trinh duyet chi-sRGB se hien thi mau khac voi tam nen co the hien thi). Cho do thoi gian phan hoi va can chinh mau, ung dung cai dat voi mau ke phan cung thang bat ky cong cu trinh duyet nao - mau ke do tam nen truc tiep. So sanh day du voi cac danh doi cu the o tai test man hinh online vs ung dung - cai nao chinh xac hon.
"Kiem tra lcd" vs test man hinh cam ung - be mat khac, cong cu khac
Neu van de man hinh cua ban la phan hoi cam ung thay vi pixel hien thi - con tro nhay, mot so diem tren man hinh khong phan hoi cham, vuot canh that bai, man hinh ghi nhan cham ma - mot bai test LCD se khong phat hien van de vi cac bai test LCD kiem tra tam nen ben duoi digitizer cam ung. Bai test dung la mot bai test rasch dau son hoac bao phu luoi tren chinh be mat cam ung, ve mot duong lien tuc qua toan bo dien tich va tim cac khoang trong. Quy trinh day du (cac vung nao bao phu, cach nhan biet nguyen nhan digitizer-vs-kinh-vs-phan-mem, khi nao nghi ngo cham ma) o tai cach kiem tra man hinh cam ung tim diem xau.
Quyen rieng tu: cai gi chay cuc bo va cai gi khong
Cong cu LCD Test la mot trong nhung thu don gian nhat de chay mot cach rieng tu vi khong co gi de tai len - bai test chi la cac mau dac toan man hinh duoc dieu khien boi vai quy tac CSS. Trang khong truy cap camera, microphone, API chup man hinh hoac clipboard cua ban. Trang khong luu hoac truyen bat ky hinh anh nao cua nhung gi tren man hinh cua ban. Dieu duy nhat trang lam cham vao mang la tai chinh trang (HTML, CSS, JavaScript nho chuyen tien chuoi mau) va phan tich tieu chuan nhu bat ky trang web nao khac. Dong tab ket thuc phien.
Di dau tiep theo
- Chay LCD Test ngay - chu trinh mau toan man hinh cho pixel chet, mau va den nen.
- Huong dan kiem tra pixel chet - phan loai chet vs ket vs sub-pixel.
- Test LCD kiem tra cai gi - danh sach day du cac thuoc tinh tam nen ma chu trinh phat hien.
- Test LCD lam gi va khi nao chay - goc "khi nao".
- Test LED vs test LCD - cau hoi cong nghe co ban.
- Cach kiem tra man hinh cam ung tim diem xau - doi tac be mat cam ung cua bai test tam nen.
- Cach kiem tra pixel chet truoc khi tra mot monitor - quy trinh bang chung bao hanh.
- Test man hinh online vs ung dung - so sanh trinh duyet-vs-cai-dat.
- Tu dien dong nghia test man hinh / display - neu ban den day tu mot tu khoa khac, xem ban do tu vung day du.
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