Circuit for controlling the lines of a display screen and including test means with a single output

摘要

A circuit for controlling the lines of a display screen and including a test means with a single output is disclosed. The test means includes a single test control line (LCT), a single test output line (LST) and a plurality of sample holders (CEBj) and associated gates (Pj) and switches (Ij). The output voltage of the sample holders is transmitted onto a test output block (ST).