Lateral electric-field liquid crystal display device suitable for improvement of aperture ratio

An active matrix liquid crystal display device comprising:

• first and second substrates;
• a liquid crystal layer disposed between said first and second substrates;
• plural image signal lines, counter-voltage signal lines and scan signal lines formed on the first substrate, each pixel region which is formed by adjacent image signal lines and adjacent scan signal lines have at least an active device;
• at least a pixel electrode is connected to the active device in each pixel region;
• and
• at least a counter electrode provided in each pixel region, and the pixel electrode and the counter electrode being provided on the first substrate;
• wherein a counter voltage is applied to the pixel regions with a net-mesh-like pattern across the adjacent image signal lines and the adjacent scan signal lines.

An active matrix liquid crystal display device comprising:

• first and second substrates;
• a liquid crystal layer disposed between said first and second substrates;
• plural image signal lines, counter-voltage signal lines and scan signal lines formed on the first substrate, each pixel region which is formed by adjacent image signal lines and adjacent scan signal lines having at least an active device;
• at least a pixel electrode connected to the active device in each pixel region;
• and
• at least a counter electrode provided in each pixel region, and the pixel electrode and the counter electrode being provided on the first substrate;
• wherein a counter voltage is applied to each pixel region across the image signal lines and the scan signal lines which form the pixel.