LCD panel and LCD device

A liquid crystal display (LCD) device comprising a backlight module and an LCD panel disposing oppositely;

• the backlight module providing a display light to the LCD panel such that the LCD panel can display an image, wherein, the LCD panel comprises:
• a gate driving module;
• a display unit;
• and
• multiple chip on film (COF) packaging units arranged at a side of the display unit and including a first COF packaging unit and a second COF packaging unit, wherein, an output lead wire of the multiple COF packaging units is connected with a gate lead wire of the display unit;
• the multiple COF packaging units are sequentially connected in series through a signal lead wire and are connected to the gate driving module;
• the gate driving module provides a scanning signal to the display unit through the multiple COF packaging units;
• wherein, a first insulating pattern layer is disposed on the gate lead wire;
• the first insulating pattern layer is provided with a through-hole structure including a first through-hole structure and a second through-hole structure;
• the output lead wire is connected with the gate lead wire by utilizing a metal lead wire passing through the through-hole structure;
• the first through-hole structure connected with the first COF packaging unit has a smaller contacting area comparing to the second through-hole structure connected with the second COF packaging unit;
• wherein, the portion of the signal lead wire connected between the first COF packaging unit and the gate driving module is shorter than the portion of the signal lead wire connected between the second COF packaging unit and the gate driving module;
• and
• wherein, the gate lead wire comprises a first metal layer and a second metal layer;
• the first metal layer and the second metal layer are isolated by a second insulating pattern layer;
• each of the first through-hole structure and the second through-hole structure comprises a first through-hole area and a second through-hole area;
• the metal lead wire connects with the first metal layer through the first through-hole area;
• and the metal lead wire connects with the second metal layer through the second through-hole area.