A Liquid Crystal Display device, comprising: an array substrate, a color film substrate, a first insulation layer on the array substrate, data lines (131; 132; 133) located on the first insulation layer, a second insulation layer covering the data lines (131; 132; 133), and a number of pixels located between the array substrate and the color film substrate, wherein each of the pixels includes a light reflection region, a third insulation layer (151; 152; 153) located on a partial surface of the second insulation layer and a light transmission region, wherein in each of the pixels a transparent electrode (171; 172; 173) located on the surface of the second insulation layer is formed in the light transmission region, and a reflection metal layer (161; 162; 163) located on a surface of the third insulation layer (151; 152; 153) is formed in the light reflection region, both of which belong to the same pixel, wherein the transparent electrodes (171; 172; 173) and the reflection metal layers (161; 162; 163) each of which is belonging to different adjacent pixels are electrically insulated from each other by the third insulation layers (151; 152; 153), and a distance between the transparent electrodes (171; 172; 173) and the reflection metal layers (161; 162; 163) each of which is belonging to different adjacent pixels is not more than 1 micrometer in a direction parallel to the surface of the array substrate, and wherein in each of the pixels the reflection metal layer (161; 162; 163) is L-shaped and includes a longitudinal reflection metal layer forming the first branch of the L-shape and covering the data lines and a lateral reflection metal layer forming the second branch of the L-shape, and a storage capacitor is formed between the lateral reflection metal layer and the array substrate under the lateral reflection metal layer. an array substrate, a color film substrate, a first insulation layer on the array substrate, data lines (131; 132; 133) located on the first insulation layer, a second insulation layer covering the data lines (131; 132; 133), and a number of pixels located between the array substrate and the color film substrate, wherein each of the pixels includes a light reflection region, a third insulation layer (151; 152; 153) located on a partial surface of the second insulation layer and a light transmission region, wherein in each of the pixels a transparent electrode (171; 172; 173) located on the surface of the second insulation layer is formed in the light transmission region, and a reflection metal layer (161; 162; 163) located on a surface of the third insulation layer (151; 152; 153) is formed in the light reflection region, both of which belong to the same pixel, wherein the transparent electrodes (171; 172; 173) and the reflection metal layers (161; 162; 163) each of which is belonging to different adjacent pixels are electrically insulated from each other by the third insulation layers (151; 152; 153), and a distance between the transparent electrodes (171; 172; 173) and the reflection metal layers (161; 162; 163) each of which is belonging to different adjacent pixels is not more than 1 micrometer in a direction parallel to the surface of the array substrate, and wherein in each of the pixels the reflection metal layer (161; 162; 163) is L-shaped and includes a longitudinal reflection metal layer forming the first branch of the L-shape and covering the data lines and a lateral reflection metal layer forming the second branch of the L-shape, and a storage capacitor is formed between the lateral reflection metal layer and the array substrate under the lateral reflection metal layer.