"infrared touch panel"

All In One Digital Interactive Smart Whiteboard Electronic Touch Display For Classroom Use Product Specifications: Specification Type Parameter Panel LCD size 110" Panel purchase standard A grad Light source D-LED Resolution 3840 x 2160pixels Brightness 400cd/m²(typ.) Contrast ration 1300:1(typ.) Pixel pitch 0.5622 (W) x 0.5622(H) Frequency 60Hz Viewing Angle 178 °(H)/178 °(V) Life span 60,000hrs(min.) Response time 8ms Color saturability 75% Visual area 2158.848×1214.352mm

86 Inch Flexible LCD Interconnected Smart Blackboard 86 inch LCD interconnected smart blackboard New generation interconnected smart blackboard High-quality smart teaching blackboard Choose MTHGH I.Product Introduction Connected Memory Blackboard Product size: 86 inches The connected blackboard solves the problem that traditional blackboard writing cannot be saved. Combined with the teacher's writing habits, the chalk writing intelligent storage can be quickly started on both

85" INTERACTIVE PRECISION DISPLAY SERIES: WIDESCREEN_COLLABORATION_2026 CONFIGURATION: MULTI-SPEC_CONFIGURABLE ◈ Google EDLA Certified Ecosystem Unlock native corporate productivity. Safely download enterprise applications directly from the Google Play Store with full hardware-level security authentication. ◈ High-Bandwidth I/O Connectivity FULL-FEATURE TYPE-C Single-cable 4K video, audio, power, & touch data transfer 6x USB 3.0 ARRAY High-speed front and rear hardware