1. What are the factors that consider the screen area allowed by the user's site?
(1) The relationship between the effective line of sight and the actual site size;
(2) pixel size and resolution;
(3) The unit is the base area estimate;
(4) Screen body mechanical installation and maintenance operation space;
(5) The influence of the screen tilt angle on the distance.
2. What are the playback effects that users need?
(1) Text display: depending on the size of the text and the need for resolution;
(2) Ordinary video display: 320 × 240 dot matrix;
(3) Digital standard DVD display: ≥ 640 × 480 dot matrix;
(4) Complete computer video: ≥800×600 dot matrix;
3. What are the brightness requirements for the screen brightness?
The general brightness requirements are as follows:
(1) Indoor: >800CD/M2
(2) Semi-indoor: >2000CD/M2
(3) Outdoor (sitting south to north): >4000CD/M2
(4) Outdoor (sitting north facing south): >8000CD/M2
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