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1. (WO2017178792) DIGITAL DISPLAY APPARATUS

Pub. No.:    WO/2017/178792    International Application No.:    PCT/GB2017/050888
Publication Date: Fri Oct 20 01:59:59 CEST 2017 International Filing Date: Fri Mar 31 01:59:59 CEST 2017
IPC: G09G 5/397
G09G 3/20
G09G 3/34
G09G 5/20
Applicants: BAE SYSTEMS PLC
Inventors: OFFREDI, Matthew Frank
OFFREDI, Luke Severino
Title: DIGITAL DISPLAY APPARATUS
Abstract:
A method for controlling a digital display device (105),such as a digital micro-mirror device,and a digital display apparatus (101, 106) are provided in which, in order to meet the latency requirements of the display, each frame of received image symbology data is divided into several subframes. A tag is assigned to an incoming drawing command, the tag having an initial value equal to the number of subframes in a frame. The drawing command is rendered on the first subframe and the tag is decremented by one. The drawing command is rendered again on subsequent subframes and the tag value is decremented by one each time the drawing is rendered. When the tag value reaches zero, the drawing command is discarded. Thus, a line may be rendered with lower latency compared with known systems which refresh on a frame-by-frame basis.