HP ENVY All-in-One 27-b000 27-b100 27-b200 Series 27" 3840x2160 IPS Display Panel Touchscreen Digitizer Assembly 901288-001 LG LM270WR5 (SS)(A1). This LCD assembly is designed for the HP Envy 27 AIO 4K Series desktops with touchscreen compatibility.HP Screen Assembly Part Number: 901288-001LG LCD Part Number: LM270WR5(SS)(A1)Compatible Models: HP ENVY AIO 27-b000: 27-b001la 27-b002la 27-b003la 27-b005xt 27-b010 27-b010t 27-b011 27-b014 27-b015qe 27-b019 27-b020qe 27-b021 27-b025se 27-b100: 27-b100nb 27-b100nd 27-b100ne 27-b100nf 27-b100ng 27-b100nh 27-b100nj 27-b100nl 27-b100nq 27-b100nw 27-b100ny 27-b100ur 27-b101nf 27-b101nk 27-b101nl 27-b101no 27-b101np 27-b101nq 27-b101nx 27-b101ny 27-b101ur 27-b105na 27-b107na 27-b109na 27-b110 27-b110nl 27-b110no 27-b111 27-b111nb 27-b112ur 27-b114 27-b120 27-b120qd 27-b135t 27-b145se 27-b150nc 27-b150ns 27-b153ng 27-b154ng 27-b155qd 27-b160nz 27-b170na 27-b170nj 27-b170ur 27-b171ns 27-b180nz 27-b190na 27-b100la 27-b100no 27-b100nt 27-b100nu 27-b100nx 27-b101la 27-b101nu 27-b102nf 27-b102nu 27-b102nx 27-b102ny 27-b103np 27-b103nx 27-b104nf 27-b105nl 27-b107no 27-b110nb 27-b110nh 27-b110ur 27-b111nf 27-b111ur 27-b112nb 27-b112nf 27-b112ny 27-b113nf 27-b113ur 27-b119 27-b121ni 27-b123nb 27-b150ur 27-b170ns 27-b171ur 27-b190nz 27-b199nz 27-200: 27-b220qd 27-b200ne 27-b200nf 27-b200nk 27-b200no 27-b200np 27-b200ns 27-b200ur 27-b201nj 27-b201ns 27-b201ur 27-b202nf 27-b202no 27-b202ur 27-b203nb 27-b203no 27-b203ns 27-b204nf 27-b204ns 27-b205na 27-b206na 27-b206nx 27-b210 27-b214 27-b219nb 27-b230nb 27-b233nb 27-b235t 27-b245se 27-b250nd 27-b250nz 27-b255qd 27-b270nz 27-b271a 27-b273jp 27-b276aSpecifications:Luminance 350 cd/m² (Typ.)Native resolution 4K UHD (3840 x 2160)Contrast ratio 1300:1 static; 10000000:1 dynamicResponse Speed 14ms (Typ.)(G to G)Chromaticity Wx:0.313; Wy:0.329Support Color 1.07B (8-bit + Hi-FRC)Gamut sRGBArrangement RGB Vertical StripeDot Pitch(W×H) 0.0518×0.1554 mmPixel Pitch(W×H) 0.1554×0.1554 mmAspect Ratio(W:H) 16:9Rear mounting holes (11-M3)Refresh Rate 60HzSmall piece of debris located on the left side between the LCD and the digitizer glass as shown in the image below.