Liquid crystal display device

摘要

In the step of curing a resin for bonding a TFT substrate and a counter substrate each having an alignment film that has been optically aligned by using UV-light, damage to the alignment film due to the UV-light can be prevented without using a light shielding mask. A UV-light absorption layer is formed between each black matrix on the counter substrate. The TFT and the counter substrates are sealed at their periphery by a resin that is cured by UV-light radiated from the counter substrate side. Since the absorption layer has a high absorbability to UV-light at a wavelength of 300 nm or less that degrades the alignment film, damage to the alignment film due to the UV-light for curing the resin can be prevented. Thus, provision of a light shielding mask for shielding the UV-light for the display region can be saved.

主权项

1. A liquid crystal display device comprising:
a TFT substrate having a first alignment film; a counter substrate having a second alignment film and a light shielding film, the counter substrate being bonded to the TFT substrate by means of a seal material; and liquid crystals sealed inside the substrates and the seal material; wherein the counter substrate having a UV-light absorption layer formed between each light shielding film, wherein the second alignment film is optically aligned by UV-light, the second alignment film is formed between the light shielding film and the liquid crystals, and between the UV-light absorption layer and the liquid crystals, the seal material is a UV-light curable resin, the transmittance of the UV-light absorption layer to UV-light at a wavelength of 300 nm is lower than that to UV-light at a wavelength of 340 nm.