Liquid crystal displays and methods for manufacturing the same

Abstract

A liquid crystal display is provided. The liquid crystal display includes a first substrate. The liquid crystal display also includes a plurality of first thin film transistors disposed on the first substrate. The liquid crystal display further includes a second substrate disposed opposite to the first substrate. In addition, the liquid crystal display includes a plurality of second thin film transistors disposed on the second substrate. The liquid crystal display also includes a plurality of sensing units disposed on the second substrate, and at least one of the plurality of sensing units electrically connected to at least one of the plurality of second thin film transistors. The liquid crystal display further includes a liquid crystal layer disposed between the first substrate and the second substrate.

1 . A liquid crystal display, comprising:
 a first substrate;   a plurality of first thin film transistors disposed on the first substrate;   a second substrate disposed opposite to the first substrate;   a plurality of second thin film transistors disposed on the second substrate;   a plurality of sensing units disposed on the second substrate, and at least one of the plurality of sensing units electrically connected to at least one of the plurality of second thin film transistors; and   a liquid crystal layer disposed between the first substrate and the second substrate.   
     
     
         2 . The liquid crystal display according to  claim 1 , wherein the at least one of the plurality of second thin film transistors at least partially overlaps with at least one of the plurality of first thin film transistors in a top view direction of the liquid crystal display. 
     
     
         3 . The liquid crystal display according to  claim 1 , further comprising:
 a first shielding layer disposed between the second substrate and the at least one of the plurality of second thin film transistors.   
     
     
         4 . The liquid crystal display according to  claim 3 , wherein the at least one of the plurality of second thin film transistors comprises a semiconductor layer, and the first shielding layer overlaps with the semiconductor layer. 
     
     
         5 . The liquid crystal display according to  claim 1 , further comprising:
 a second shielding layer disposed between the liquid crystal layer and the at least one of the plurality of second thin film transistors.   
     
     
         6 . The liquid crystal display according to  claim 5 , wherein the at least one of the plurality of second thin film transistors comprises a semiconductor layer, and the semiconductor layer overlaps with the second shielding layer. 
     
     
         7 . The liquid crystal display according to  claim 1 , further comprising:
 a first shielding layer disposed between the second substrate and at least one of the plurality of second thin film transistors; and   a second shielding layer disposed between the liquid crystal layer and the at least one of the plurality of second thin film transistors,   wherein a width of the first shielding layer is greater than a width of the second shielding layer.   
     
     
         8 . The liquid crystal display according to  claim 7 , wherein a material of the first shielding layer is different from a material of the second shielding layer. 
     
     
         9 . The liquid crystal display according to  claim 1 , further comprising:
 a third shielding layer disposed between the liquid crystal layer and at least one of the plurality of first thin film transistors.   
     
     
         10 . The liquid crystal display according to  claim 1 , wherein the liquid crystal display comprises a curved liquid crystal display. 
     
     
         11 . The liquid crystal display according to  claim 1 , further comprising:
 a color filter layer disposed on the first substrate.   
     
     
         12 . The liquid crystal display according to  claim 11 , further comprising:
 a shielding layer disposed between the color filter layer and the first substrate.   
     
     
         13 . The liquid crystal display according to  claim 1 , wherein a distance between a semiconductor layer of at least one of the plurality of first thin film transistors and a semiconductor layer of the at least one of the plurality of second thin film transistors is in a range of 0.5 μm and 10 μm. 
     
     
         14 . The liquid crystal display according to  claim 1 , wherein at least one of the plurality of first thin film transistors comprises a first semiconductor layer, the at least one of the plurality of second thin film transistors comprises a second semiconductor layer, and a material of the first semiconductor layer is different from a material of the second semiconductor layer. 
     
     
         15 . The liquid crystal display according to  claim 14 , wherein the first semiconductor layer comprises a first channel, the second semiconductor layer comprises a second channel, and a width-to-length ratio of the first channel is different from a width-to-length ratio of the second channel. 
     
     
         16 . The liquid crystal display according to  claim 1 , wherein the at least one of the plurality of sensing units extends across at least two of the plurality of first thin film transistors. 
     
     
         17 . A method for manufacturing a liquid crystal display, comprising:
 providing a first substrate;   forming a plurality of first thin film transistors on the first substrate;   providing a second substrate;   forming a plurality of second thin film transistors on the second substrate;   forming a plurality of sensing units on the second substrate, wherein at least one of the plurality of sensing units is electrically connected to at least one of the plurality of second thin film transistors; and   combining the first substrate and the second substrate.   
     
     
         18 . The method according to  claim 17 , further comprising:
 providing a first flexible substrate on the first substrate, the plurality of first thin film transistors disposed between the first flexible substrate and the first substrate; and   providing a second flexible substrate on the second substrate, the plurality of second thin film transistors disposed between the second flexible substrate and the second substrate.   
     
     
         19 . The method according to  claim 17 , further comprising:
 forming a first shielding layer on the second substrate, wherein the first shielding layer is disposed between the second substrate and the at least one of the plurality of second thin film transistors.   
     
     
         20 . The method according to  claim 19 , further comprising:
 forming a second shielding layer on the at least one of the plurality of second thin film transistors, wherein the second shielding layer is disposed between the first substrate and the at least one of the plurality of second thin film transistors.