2-Piece Sample Order & Optical Bench Testing

Before committing to bulk inventory, B2B buyers, refurbishment engineers, and lead technicians require verifiable proof of optical clarity, touch responsiveness, and structural fitment on their own test benches. Unlike trading companies that enforce high minimum order thresholds, JH Screen supports a flexible 2-piece sample MOQ across our entire catalog of 71+ iPhone replacement screen SKUs. Once you select your evaluation models across our Soft OLED, Hard OLED, COF In-Cell FHD, or In-Cell HD+ series, our Huaqiang North export center dispatches your sample parcel within 24 to 48 hours via DHL, FedEx, or UPS. Every sample unit is pulled directly from our mass-production Class 1K cleanroom lines—never cherry-picked hand-built prototypes—ensuring that the screens you test in your laboratory are 100% identical to the bulk shipments you will receive in volume orders. Your technical team can subject our screens to rigorous side-by-side bench evaluations: measuring 1000+ cd/m² (OLED) and 700+ cd/m² (In-Cell) peak luminance on an optical spectrometer, verifying 7500±500K color temperature accuracy and 99.8% NTSC color saturation, checking 360-degree polarized sunglasses visibility without rainbow artifacts, and testing water-drop contact angles on our 9H oleophobic tempered glass. Furthermore, your technicians can validate 1:1 CNC frame bezel tolerances (such as our ultra-slim 2.38 mm profile on the iPhone 16 Pro Soft OLED), multi-touch digitizer linearity without ghost touch, seamless True Tone serial data read/write across mainstream programmers, Face ID ambient light sensor transmittance, and original touch IC grinding and soldering transfer for iOS unknown-part message removal. Throughout your sample testing window, our 20-member R&D team remains directly accessible via video call or WhatsApp to review your bench test metrics, compare power draw waveforms, and customize touch IC firmware parameters to match your exact refurbishment standards