1986; returning to a plasma screens (but with red/orange text color and wide aspect ratio).

[5] 3D view: http://vintage-laptops.com/en/grid-case-3 1986; the rugged version of GRiDCASE 3 with electromagnetic protection.

3D view: http://vintage-laptops.com/en/grid-case-1520 Source:[6] The modification of 1530 – the Grid GRiDCASE 1535EXP is a rugged laptop with a 80386 CPU, an optional 80387 floating-point processor and up to 8 Mbyte of DRAM.

The 1535EXP was also the first rugged portable PC to attain full TEMPEST accreditation from the NSA.

3D view: http://vintage-laptops.com/en/grid-case-1537e 1990;[6] This model has an integrated pointing device,[6] and was based on an Intel 80386sx processor.