Bo kiem tra LCD: Chay kiem tra man hinh online mien phi tren trinh duyet
Lan kiem tra cuoi 2026-05-18. Tac gia: nhom bien tap freetoolonline. Kiem tra man hinh duoc lien ket tu trang nay chay trong trinh duyet cua ban tren chinh thiet bi cua ban - chinh viec kiem tra khong thu thap hoac tai len bat ky hinh anh nao cua man hinh.
Ly do tai sao cach viet doc nhu "checker" chu khong phai "tester"
Cac truy van tim kiem chia thanh hai ho cach dien dat cho cung mot cong viec. Ho tester / test / test online coi nhiem vu nhu mot dong tu chu dong ("chay mot bai test"); ho checker / check / check online coi do la mot buoc xac minh ("kiem tra xem tam nen co on khong"). Ca hai ho deu chi den cung mot quy trinh trinh duyet - lai tam nen qua cac mau dac toan man hinh va quan sat bat ky pixel hoac mang nao hoat dong sai - nhung doc gia den voi truy van "checker" thuong tien xa hon mot buoc trong luong cong viec. Ho da nhan thay dieu gi do trong nhin sai tren man hinh, hoac ho sap tra mot man hinh va muon mot luot xac minh nhanh, va ho dang tim kiem su xac nhan chu khong phai giao duc. Cong cu trinh duyet giong nhau trong ca hai truong hop; cai thay doi la khung canh tai sao ban dang chay no.
Mot bo kiem tra LCD thuc su xac minh dieu gi trong mot luot
| Loai loi | Cach kiem tra phat hien | Khung mau de quan sat |
|---|---|---|
| Pixel chet | Pixel van den tren moi khung mau | Do dac, xanh la, xanh lam hoac trang |
| Pixel ket | Pixel khoa o mot mau (thuong do, xanh la hoac xanh lam) tren moi khung | Bat ky khung dac nao khac voi mau bi khoa |
| Loi sub-pixel | Diem mau nho ben trong mot pixel lon hon | Quan sat gan tren trang dac |
| Ro ri den nen | Cac mang sang gan canh hoac goc | Den dac, phong toi |
| Sai lech mau | Toan bo tam nen nhuom ve mot kenh | Trang dac, tham chieu ben canh man hinh |
| Vet bam ap luc / va cham | Cham toi khong di chuyen voi khung | Trang dac hoac gradient xam dac |
Cach chay kiem tra LCD trong 60 giay
Mo LCD Test. Nhan F11 (hoac tuong duong toan man hinh tren macOS / iPad) de bai test lap day moi pixel cua tam nen - vien cua so va thanh tac vu cua he dieu hanh se che giau mot dai pixel doc theo canh tren va canh duoi. Nhan hoac cham qua chu trinh mau - do dac, xanh la dac, xanh lam dac, trang dac, den dac, 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 co 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. Toan bo luot mat khoang mot phut tu dau den cuoi.
Neu kiem tra phat hien mot loi ban can ghi lai de tra hang bao hanh, chup loi do bang mot camera rieng (mot 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 kiem tra de nhan vien ho tro co the thay 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 man hinh; phan loai pixel chet (chet vs ket vs sub-pixel) o tai huong dan kiem tra pixel chet.
Bo kiem tra LCD vs tester LCD - co su khac biet thuc su khong?
Cho cong viec trinh duyet duoc mo ta o tren - lai tam nen qua cac khung tham chieu de mat nguoi co the phat hien bat ky sai lech nao - khong co su khac biet ve chuc nang. Cach viet "checker" va "tester" deu den cung mot cong cu. Noi ma cach viet bat dau co y nghia la o phia phan cung: mot LCD checker chuyen biet trong cua hang sua chua thuong la mot phan cung tra van tam nen qua giao dien hien thi cua no (LVDS, eDP) va bao cao chu ky tam nen; mot LCD tester chuyen biet thuong la bo phat mau truc quan ma ky thuat vien quan sat bang mat. Mot cong cu trinh duyet bao quat nua truc quan - cung nua quan trong voi mot nguoi dung cuoi xac minh man hinh cua chinh ho - va bo qua nua tra van phan cung (can mot dau do gan vao cap tam nen, khong phai mot trang web).
Tai sao kiem tra online tot hon khong kiem tra - va khi nao no khong vuot qua mot bo can chinh
Mot kiem tra LCD dua tren trinh duyet du de bat duoc cac loi ma hau het nguoi dung cuoi quan tam: mot pixel chet duy nhat trong vung nhin, mot ro ri den nen ro rang o goc, mot sai lech mau khien trang trong hong hoac xanh la. Cac loi nay co the nhin thay bang mat khi tam nen hien thi mot khung tham chieu duoc biet, do do bo phat mau truc quan ben trong trinh duyet la tat ca cong cu can. Hai truong hop trong do mot ung dung cai dat voi mot mau ke phan cung van thang la: can chinh mau chinh xac den mot diem trang da biet (do Delta-E; mau ke nhin tam nen truc tiep, mat nguoi uoc tinh), va do thoi gian phan hoi (mot camera toc do cao hoac mot dau do chuyen biet do thoi gian chuyen pixel; cong cu trinh duyet khong the). Cho moi thu nam giua hai truong hop chuyen biet do va "man hinh cua toi co bi hong khong?", mot kiem tra trinh duyet la cong cu dung.
Huong dan lien quan
- Test LCD - chon cong cu kiem tra man hinh dung - huong dan anh em cho ho cach viet "test lcd" / "lcd test".
- Test LCD - no kiem tra cai gi - bai giai thich dai hon ve cac loi ma moi khung phat hien.
- Test LCD lam gi va khi nao chay no - goc "khi nao toi nen ban tam chay nay".
- Test LED vs test LCD - cai nao ap dung cho man hinh cua ban - phan biet cong nghe tam nen.
- Test LCD vs test display - cai nao ban can - phan biet pham vi tam nen vs display.
- Test man hinh online vs ung dung - cai nao chinh xac hon - so sanh trinh duyet vs ung dung cai dat.
- Huong dan kiem tra pixel chet - phan loai chet vs ket vs sub-pixel.
- Cach kiem tra pixel chet truoc khi tra mot man hinh - quy trinh bang chung bao hanh.
Cac cau hoi thuong gap
Bo kiem tra LCD online co can cai dat thu gi khong?
Khong. Kiem tra chay trong trinh duyet cua ban su dung API toan man hinh va mot div lap day viewport voi mau dac cho moi khung. Khong co tien ich mo rong, khong plugin, khong trinh cai dat. Chrome, Edge, Firefox va Safari hien dai deu ho tro API toan man hinh va viec render mau ma cai nay su dung.
Kiem tra LCD trinh duyet co the sai ve mot pixel chet khong?
Duong tinh gia hiem. Kiem tra la cac mau dac toan man hinh, do do mot pixel chet phia tam nen se xuat hien nhu mot cham den hoac sai mau bat ke truoc do co gi tren man hinh. Ly do pho bien nhat khien mot "pixel chet" hoa ra binh thuong la bui tren tam nen: lau man hinh bang mot khan microfibre sach va chay lai kiem tra; neu cham di chuyen hoac bien mat, do la bui. Mot cham keo dai o cung mot vi tri qua nhieu khung mau la mot loi tam nen.
Bo kiem tra LCD cung kiem tra man hinh cam ung khong?
Khong. Kiem tra chu trinh mau xac minh cac pixel tam nen va den nen, khong phai be mat cam ung. Mot diem chet tren mot man hinh cam ung la mot loi cua digitizer, khong phai loi tam nen, va can mot bai test theo dau son hoac dau ngon tay. Quy trinh o tai cach kiem tra man hinh cam ung tim diem xau.
Ket qua cua kiem tra LCD trinh duyet co duoc chap nhan cho bao hanh khong?
Hau het nha san xuat man hinh va laptop chap nhan mot anh chup ro rang cua loi tren tam nen, chup tu khoang cach co dinh o do sang toi da, voi man hinh hien thi mot trong cac khung kiem tra tieu chuan. Quy trinh thu thap bang chung day du - bao gom khung nao su dung cho loai loi nao - o tai cach kiem tra pixel chet truoc khi tra mot man hinh.
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