Liquid crystal display panel having a constant cell gap and method of making the same
View Patent ↗An LCD panel that provides improved image quality by preventing light leakage and maintaining constant cell gap is provided, along with a method of making the LCD panel. The LCD panel includes a first member that has a column spacer, a second member that is positioned substantially parallel to the first member, and a polymer layer disposed between the column spacer and the second member. The polymer layer combines the column spacer with the second member. A liquid crystal layer is disposed between the first member and the second member.
1. An LCD panel comprising:
a first member including a column spacer;
a second member disposed substantially parallel to the first member;
a polymer layer disposed between the column spacer and the second member, the polymer layer adhering the column spacer to the second member;
a liquid crystal layer disposed between the first member and the second member; and
wherein the second member has a caved-in part, the polymer layer being disposed only in the caved-in part.
2. The LCD panel according to claim 1 , wherein at least one of the first member and the second member comprises an insulating substrate made of plastic.
3. The LCD panel according to claim 2 , wherein a TFT is formed on the first member, and the insulating substrate of the second member is made of plastic.
4. The LCD panel according to claim 1 , further comprising a first alignment layer disposed between the column spacer and the polymer layer.
5. The LCD panel according to claim 1 , wherein the second member comprises an insulating substrate and a common electrode layer and a second alignment layer which are formed sequentially on the insulating substrate, and wherein the polymer layer is formed on the second alignment layer.
6. The LCD panel according to claim 1 , wherein a black matrix is formed on the second member in a lattice pattern and the caved-in part is formed in the black matrix.
7. The LCD panel according to claim 6 , wherein the black matrix is removed from the caved-in part.
8. The LCD panel according to claim 6 , wherein the black matrix comprises an organic substance.
9. The LCD panel of claim 6 , wherein the black matrix has a thin portion and a thick portion and the caved-in part is aligned with the thin portion.
10. The LCD panel according to claim 1 , wherein the second member further comprises an overcoat layer and the caved-in part is formed on the overcoat layer.
11. The LCD panel according to claim 1 , wherein a metal pattern is formed on an area of the first member that aligns with the caved-in part when the first member and the second member are aligned to reduce light leakage.
12. The LCD panel according to claim 1 , wherein the polymer layer comprises acryl resin and epoxy resin.
13. The LCD panel according to claim 1 , wherein the polymer layer comprises an ultraviolet hardening resin.
14. The LCD panel according to claim 1 , further comprising a sealant combining the first member with the second member, wherein the sealant contains an ultraviolet hardening resin.
15. The LCD panel of claim 1 , further comprising:
a black matrix is formed on the second member in a lattice pattern; and
an overcoat layer on the black matrix,
wherein the overcoat layer is removed from an area aligned with the caved-in part.