| 摘要 |
PURPOSE: A black TFT LCD is provided to form electrodes transparently with an interval between the electrodes smaller than the width of electrodes and cell gaps, thereby realizing the high brightness while keeping the wide viewing angle. CONSTITUTION: A black TFT LCD includes upper and lower transparent insulating substrates(200,100) interposed by a liquid crystal layer(170) filled with liquid crystal molecules(160) and joined with each other with a predetermined cell gap. The lower substrate is formed with transparent slit type pixel and counter electrodes(120,140) formed by a predetermined interval. The interval between the pixel and counter electrodes is smaller than the cell gap between the upper and lower substrates and smaller than the width(W2) of the pixel electrodes. Parabola electric fields(E2) are generated between the pixel and counter electrodes according to power supply, so that all the liquid crystal molecules between and on the electrodes become rotating. Then, a transmission area(A2) is formed over the entire upper substrate, increasing the brightness. |
