Display apparatus and method of manufacturing the same

Abstract

A display apparatus includes a first base substrate, a touch sensing part provided on the first base substrate, an electronic device provided on the first base substrate, a black matrix provided on the first base substrate, a signal line provided on the black matrix to apply a driving signal to the electronic device, a second base substrate facing the first base substrate, and a liquid crystal layer disposed between the first base substrate and the second base substrate.

1 . A display apparatus comprising:
 a first base substrate;   a touch sensing part on the first base substrate;   an electronic device on the first base substrate;   a black matrix on the first base substrate;   a signal line on the black matrix;   a second base substrate facing the first base substrate; and   a liquid crystal layer between the first base substrate and the second base substrate.   
     
     
         2 . The display apparatus of  claim 1 , wherein the electronic device comprises a first electrode, a second electrode configured to form an electric field in the liquid crystal layer in cooperation with the first electrode, and a switching device connected to the first electrode. 
     
     
         3 . The display apparatus of  claim 2 , wherein the touch sensing part comprises:
 a plurality of first lines extended in a first direction, the plurality of first lines configured to receive an operating voltage; and   a plurality of second lines extended in a second direction different from the first direction, the plurality of second lines configured to receive a sensing voltage,   wherein the second lines are capacitively coupled to the first lines, and wherein the sensing voltage is changed by the capacitive coupling between the first and second lines.   
     
     
         4 . The display apparatus of  claim 3 , wherein at least one of the first lines comprises a plurality of first blocks arranged in the first direction and a plurality of first bridges, at least one of the first bridges connecting adjacent first blocks to each other, wherein at least one of the second lines comprises a plurality of second blocks arranged in the second direction and a plurality of second bridges, at least one of the second bridges connecting adjacent second blocks to each other, and wherein the first bridges are insulated from and cross the second bridges while the black matrix is disposed between the first and second bridges. 
     
     
         5 . The display apparatus of  claim 4 , wherein the black matrix is disposed between the electronic device and the first blocks, the electronic device and the second blocks, and the electronic device and the first bridges. 
     
     
         6 . The display apparatus of  claim 4 , wherein the switching device comprises:
 a gate electrode on the black matrix;   a source electrode, a portion of the source electrode corresponding to the gate electrode while a first insulating layer is disposed between the source electrode and the gate electrode; and   a drain electrode spaced apart from the source electrode, a portion of the drain electrode corresponding to the gate electrode while the first insulating layer is disposed between the drain electrode and the gate electrode, the drain electrode being connected to the first electrode.   
     
     
         7 . The display apparatus of  claim 6 , wherein the gate electrode and a portion of the second bridges are disposed on the black matrix. 
     
     
         8 . The display apparatus of  claim 4 , wherein the signal line comprises a plurality of gate lines extended in the first direction and configured to apply a gate signal to the gate electrode and a plurality of data lines extended in the second direction and configured to apply a data signal to the source electrode. 
     
     
         9 . The display apparatus of  claim 8 , wherein contact holes are formed through the black matrix to expose a portion of the second blocks, and the second bridges are connected to the second blocks through the contact holes. 
     
     
         10 . The display apparatus of  claim 9 , wherein the contact holes are provided in the black matrix corresponding to the gate lines. 
     
     
         11 . The display apparatus of  claim 9 , wherein the contact holes are provided in the black matrix corresponding to the data lines. 
     
     
         12 . The display apparatus of  claim 11 , wherein the black matrix has a width in an area through which the contact holes are formed, wherein the width of the black matrix is greater than a width in an area through which the contact holes are not formed. 
     
     
         13 . The display apparatus of  claim 4 , further comprising one or more switching devices, the switching devices respectively corresponding to the gate lines and the data lines, and wherein at least one of the first blocks or the second blocks corresponds to at least one switching device when viewed in a plan view. 
     
     
         14 . The display apparatus of  claim 2 , wherein the signal line comprises a plurality of gate lines extended in the first direction and configured to apply a gate signal to the gate electrode and a plurality of data lines extended in the second direction and configured to apply a data signal to the source electrode, and wherein the touch sensing part comprises a plurality of touch sensing lines capacitively coupled to the gate lines and extended in the second direction, wherein a voltage applied to the touch sensing part is changed by the capacitive coupling between the touch sensing lines and the gate lines. 
     
     
         15 . The display apparatus of  claim 2 , wherein the first electrode and the second electrode are provided on the first base substrate. 
     
     
         16 . The display apparatus of  claim 15 , wherein the first electrode comprises a plurality of first branch portions, the second electrode comprises a plurality of second branch portions, and the first branch portions are alternately arranged with the second branch portions when viewed in a plan view. 
     
     
         17 . The display apparatus of  claim 15 , wherein the first electrode comprises a plurality of first branch portions, the second electrode is formed as a single plate, and the first branch portions overlap the second electrode when viewed in a plan view. 
     
     
         18 . The display apparatus of  claim 17 , wherein the switching device comprises:
 a gate electrode disposed on the black matrix; and   a source and drain electrode disposed on a first insulating layer, wherein a portion of the source and drain electrode corresponds to the gate electrode.   
     
     
         19 . The display apparatus of  claim 18 , wherein the signal line further comprises:
 a plurality of gate lines extended in a first direction and configured to apply a gate signal to the gate electrode;   a common line extended in the first direction and spaced apart from the gate lines, the common line configured to apply a common voltage to the second electrode;   a plurality of data lines extended in a second direction crossing the first direction and configured to apply a data signal to the source electrode.   
     
     
         20 . The display apparatus of  claim 19 , further comprising a second insulating layer on the switching device and a third insulating layer on the second insulating layer, wherein the first electrode is disposed on the third insulating layer, and the second electrode is disposed between the second insulating layer and the third insulating layer. 
     
     
         21 . The display apparatus of  claim 1 , wherein the black matrix comprises at least one of molybdenum oxide, manganese oxide, amorphous carbon, silicon-germanium compound, or germanium oxide. 
     
     
         22 . A display apparatus comprising:
 a first base substrate;   a touch sensing part on the first base substrate;   a black matrix on the first base substrate;   a signal line on the black matrix, the signal line configured to output a driving signal;   a second base substrate facing the first base substrate;   a liquid crystal layer between the first base substrate and the second base substrate; and   an electronic device configured to drive the liquid crystal layer in response to the driving signal.   
     
     
         23 . The display apparatus of  claim 22 , wherein the electronic device comprises a first electrode, a second electrode configured to form an electric field in the liquid crystal layer in cooperation with the first electrode, and a switching device connected to the first electrode. 
     
     
         24 . The display apparatus of  claim 23 , wherein the first electrode is disposed on the first base substrate, and the second electrode is disposed on the second base substrate. 
     
     
         25 . The display apparatus of  claim 24 , wherein at least one of the first electrode or the second electrode comprises a domain divider and divides the liquid crystal layer into a plurality of domains. 
     
     
         26 . The display apparatus of  claim 25 , wherein the domain divider includes a slit or a protrusion. 
     
     
         27 . A method of manufacturing a display apparatus, comprising:
 forming a touch sensing part on a first base substrate;   forming a black matrix on the first base substrate;   forming a signal line on the black matrix;   forming an electronic device connected to the signal line; and   forming a liquid crystal layer between the first base substrate and a second base substrate.   
     
     
         28 . The method of  claim 27 , wherein forming the electronic device comprises:
 forming a switching device on the first base substrate, the switching device connected to the signal line;   forming a first electrode on the first base substrate, the first electrode connected to the switching device; and   forming a second electrode on the second base substrate.   
     
     
         29 . The method of  claim 27 , wherein forming the electronic device comprises:
 forming a switching device on the first base substrate, the switching device connected to the signal line;   forming a first electrode on the first base substrate, the first electrode connected to the switching device; and   forming a second electrode on the first base substrate, the second electrode spaced from and insulated from the first electrode.   
     
     
         30 . The method of  claim 29 , further comprising forming an insulating layer between the first electrode and the second electrode. 
     
     
         31 . The method of  claim 29 , wherein forming the switching device comprises:
 forming a gate electrode on the black matrix; and   forming a source and drain electrode to be insulated from the gate electrode.   
     
     
         32 . The method of  claim 31 , wherein forming the touch sensing part comprises:
 forming a plurality of first lines extended in a first direction; and   forming a plurality of second lines extended in a second direction different from the first lines, the second lines capacitively coupled to the first lines.   
     
     
         33 . The method of  claim 32 , wherein at least one of the first lines comprises a plurality of first blocks arranged in the first direction and a plurality of first bridges, at least one of the first bridges connecting adjacent first blocks to each other, at least one of the second lines comprises a plurality of second blocks arranged in the second direction and a plurality of second bridges insulated from and crossing the first bridges, wherein the black matrix is disposed between the first bridges and the second bridges, and wherein the first blocks, the second blocks, and the first bridges or the second bridges are formed by a single mask process. 
     
     
         34 . The method of  claim 33 , wherein the gate electrode and remaining bridges of the first and second bridges are formed by a single mask process. 
     
     
         35 . The method of  claim 31 , wherein forming the signal line comprises forming a plurality of gate lines extended in the first direction and configured to apply a gate signal to the gate electrode and forming a plurality of data lines extended in the second direction and configured to apply a data signal to the source electrode, and wherein forming the touch sensing part comprises forming a plurality of touch sensing lines extended in the first direction and capacitively coupled to the gate lines, and wherein a voltage applied to the touch sensing part is changed by the capacitive coupling between the touch sensing lines and the gate lines. 
     
     
         36 . The method of  claim 27 , wherein the black matrix comprises at least one of molybdenum oxide, manganese oxide, amorphous carbon, silicon-germanium compound, or germanium oxide. 
     
     
         37 . A display apparatus comprising:
 a first base substrate;   a second base substrate facing the first base substrate;   a liquid crystal layer between the first base substrate and the second base substrate;   a touch sensing part and an electronic device on an inner surface of the first base substrate; and   a signal line on the touch sensing part or the electronic device.   
     
     
         38 . The display apparatus of  claim 37 , further comprising a black matrix on the first base substrate.