Liquid crystal display panel and method of manufacturing the same
View Patent ↗A liquid crystal display (LCD) panel and a method of manufacturing the same are provided, and the LCD panel comprises: a first substrate and a second substrate, which are assembled together to form a cell, in which liquid crystal; and spacers formed between the first substrate and the second substrate. The spacers comprise, at least, first-type spacers and second-type spacers, which are formed of different kinds of materials, the material for the first-type spacers has a thermal expansion coefficient lower than that of liquid crystal, the material for the second-type spacers has a thermal expansion coefficient higher than that of liquid crystal, and the first-type spacers and the second-type spacers are disposed in alternation.
1. A liquid crystal display (LCD) panel, comprising
a first substrate;
a second substrate, wherein the first and second substrates are assembled together to form a cell, in which liquid crystal is provided; and
spacers provided between the first substrate and the second substrate, used to keep a cell gap between the two substrates,
wherein materials used to form the respective spacers comprise N kinds, where N is a natural number, greater than or equal to two, and
wherein the spacers comprise, at least, first-type spacers and second-type spacers, which are formed of different kinds of materials, the material for the first-type spacers has a thermal expansion coefficient lower than that of liquid crystal, the material for the second-type spacers has a thermal expansion coefficient higher than that of liquid crystal, and the first-type spacers and the second-type spacers are disposed in alternation.
2. The LCD panel according to claim 1 ,
wherein N equals two, and
wherein the number ratio of the first-type spacers to the second-type spacers equals the ratio of the thermal expansion coefficient difference between liquid crystal and the first-type spacers to the thermal expansion coefficient difference between the second-type spacers and liquid crystal.
3. The LCD panel according to claim 1 ,
wherein both the first-type spacers and the second type spacers are evenly distributed between the first substrate and the second substrate.
4. The LCD panel according to claim 2 ,
wherein both the first-type spacers and the second type spacers are evenly distributed between the first substrate and the second substrate.
5. The LCD panel according to claim 1 ,
wherein N is greater than two, and
wherein the sum of the products of the number ratio of each type of spacers to all the spacers and the expansion coefficient of the each type of the spacers equals the thermal expansion coefficient of liquid crystal.
6. The LCD panel according to claim 1 , further comprising secondary spacers formed between the first substrate and the second substrate,
wherein the secondary spacers have a height that is lower that of the spacers when the liquid crystal is at a normal state.
7. The LCD panel according to claim 2 , further comprising secondary spacers formed between the first substrate and the second substrate,
wherein the secondary spacers have a height that is lower that of the spacers when the liquid crystal is at a normal state.
8. The LCD panel according to claim 1
wherein the material used for the second-type spacers is selected from the group consisting of ultra-high molecular weight polyethylene, isobutene rubber and polyurethane.
9. The LCD panel according to claim 2
wherein the material used for the second-type spacers is selected from the group consisting of ultra-high molecular weight polyethylene, isobutene rubber and polyurethane.
10. The LCD panel according to claim 1 , wherein the thermal expansion coefficient of the spacers as a whole is close to or equal to that of the liquid crystal.