Liquid crystal display

Abstract

A liquid crystal display includes: first and second gate lines disposed on the first substrate and which respectively transmit first and second gate signals; first, second and third data lines disposed on the first substrate; a first switching element connected to the first gate line and the first data line; a second switching element connected to the first gate line and the second data line; a third switching element connected to the second gate line and the second data line; a fourth switching element connected to the second gate line and the third data line; first and second pixel electrodes respectively connected to the first and second switching and which form a first liquid crystal capacitor; and third and fourth pixel electrodes respectively connected to the third and fourth switching elements and which form a second liquid crystal capacitor.

1 . A liquid crystal display comprising:
 a first substrate;   a second substrate disposed opposite the first substrate;   a liquid crystal layer interposed between the first and second substrates and including liquid crystal molecules;   a first gate line disposed on the first substrate and which transmits a first gate signal;   a second gate line disposed on the first substrate and which transmits a second gate signal;   a first data line disposed on the first substrate;   a second data line disposed on the first substrate;   a third data line disposed on the first substrate;   a first switching element connected to the first gate line and the first data line;   a second switching element connected to the first gate line and the second data line;   a third switching element connected to the second gate line and the second data line;   a fourth switching element connected to the second gate line and the third data line;   a first pixel electrode connected to the first switching element;   a second pixel electrode connected to the second switching element and separated from the first pixel electrode;   a third pixel electrode connected to the third switching element; and   a fourth pixel electrode connected to the fourth switching element and separated from the third pixel electrode,   wherein the first pixel electrode and the second pixel electrode form a first liquid crystal capacitor, and the third pixel electrode and the fourth pixel electrode form a second liquid crystal capacitor.   
     
     
         2 . The liquid crystal display of  claim 1 , wherein
 the first pixel electrode includes first branches,   the second pixel electrode includes second branches,   the first branches of the first pixel electrode and the second branches of the second pixel electrode are alternately disposed on the first substrate,   the third pixel electrode includes third branches,   the fourth pixel electrode includes fourth branches, and   the third branches of the third pixel electrode and the fourth branches of the fourth pixel electrode are alternately disposed on the first substrate.   
     
     
         3 . The liquid crystal display of  claim 2 , wherein
 when the first gate line receives a gate-on signal, the first pixel electrode receives a first data voltage from the first data line and the second pixel electrode receives a second data voltage from the second data line, and   a polarity of the first data voltage with respect to a reference voltage is opposite to a polarity of the second data voltage with respect to the reference voltage.   
     
     
         4 . The liquid crystal display of  claim 3 , wherein
 when the second gate line receives a gate-on signal, the third pixel electrode receives a third data voltage from the second data line and the fourth pixel electrode receives a fourth data voltage from the third data line,   a polarity of the third data voltage with respect to the reference voltage is opposite to a polarity of the fourth data voltage with respect to the reference voltage, and   the polarity of the second data voltage with respect to the reference voltage is the same as the polarity of the third data voltage with respect to the reference voltage.   
     
     
         5 . The liquid crystal display of  claim 2 , further comprising:
 a third gate line disposed on the first substrate;   a fourth gate line disposed on the first substrate;   a fourth data line disposed on the first substrate;   a fifth data line disposed on the first substrate;   a sixth data line disposed on the first substrate;   a fifth switching element connected to the third gate line and the fourth data line;   a sixth switching element connected to the third gate line and the fifth data line;   a seventh switching element connected to the fourth gate line and the fifth data line;   an eighth switching element connected to the fourth gate line and the sixth data line;   a fifth pixel electrode connected to the fifth switching element;   a sixth pixel electrode connected to the sixth switching element and separated from the fifth pixel electrode;   a seventh pixel electrode connected to the seventh switching element; and   a eighth pixel electrode connected to the eighth switching element and separated from the seventh pixel electrode,   wherein   the third gate line is connected to the first gate line and transmits the first gate signal,   the fourth gate line is connected to the second gate line and transmits the second gate signal,   the fifth pixel electrode and the sixth pixel electrode form a third liquid crystal capacitor, and   the seventh pixel electrode and the eighth pixel electrode form a fourth liquid crystal capacitor.   
     
     
         6 . The liquid crystal display of  claim 5 , wherein
 the first data line and the fourth data line are disposed substantially adjacent to each other,   the second data line and the fifth data line are disposed substantially adjacent to each other, and   the third data line and the sixth data line are disposed substantially adjacent to each other.   
     
     
         7 . The liquid crystal display of  claim 6 , wherein
 the fifth pixel electrode includes fifth branches,   the sixth pixel electrode includes sixth branches,   the fifth branches of the fifth pixel electrode and the sixth branches of the sixth pixel electrode are alternately disposed on the first substrate,   the seventh pixel electrode includes seventh branches,   the eighth pixel electrode includes eighth branches, and   the seventh branches of the seventh pixel electrode and the eighth branches of the eighth pixel electrode are alternately disposed on the first substrate.   
     
     
         8 . The liquid crystal display of  claim 1 , further comprising:
 a first storage capacitor connected to the first switching element; and   a second storage capacitor connected to the second switching element and separated from the first storage capacitor.   
     
     
         9 . The liquid crystal display of  claim 1 , further comprising:
 a capacitive electrode connected to the first pixel electrode and which overlaps the second pixel electrode with an insulating layer disposed therebetween,   wherein the capacitive electrode and the second pixel electrode form a storage capacitor.   
     
     
         10 . A liquid crystal display comprising:
 a first substrate;   a second substrate disposed opposite the first substrate;   a liquid crystal layer interposed between the first and second substrates and including liquid crystal molecules;   a first gate line disposed on the first substrate and which transmits a first gate signal;   a second gate line disposed on the first substrate and which transmits a second gate signal;   a third gate line disposed on the first substrate and which transmits a third gate signal;   a first data line disposed on the first substrate;   a second data line disposed on the first substrate;   a first switching element connected to the first gate line and the first data line;   a second switching element connected to the second gate line and the second data line;   a third switching element connected to the third gate line and an output terminal of the second switching element; and   a first pixel electrode connected to the first switching element and a second pixel electrode connected to the second switching element and separated from the first pixel electrode,   wherein an input terminal of the third switching element is connected to the output terminal of the second switching element, an output terminal of the third switching element is connected to the second pixel electrode, and   the first pixel electrode and the second pixel electrode form a first liquid crystal capacitor.   
     
     
         11 . The liquid crystal display of  claim 10 , wherein
 the first pixel electrode includes first branches,   the second pixel electrodes includes second branches, and   the first branches of the first pixel electrode and the second branches of the second pixel electrode are alternately disposed on the first substrate.   
     
     
         12 . The liquid crystal display of  claim 11 , wherein
 when the first gate line receives a gate-on signal, the first pixel electrode receives a first data voltage from the first data line and the third pixel electrode receives a second data voltage from the second data line,   when the second gate line receives the gate-on signal, the second pixel electrode receives a third data voltage from the second data line and the fourth pixel electrode receives a fourth data voltage from the third data line,   the first data voltage and the second data voltage have different polarities,   the second data voltage and the third data voltage have different polarities, and when the third gate line receives the gate on signal, the second data voltage is transmitted through the third switching element.   
     
     
         13 . The liquid crystal display of  claim 10 , further comprising:
 a fourth gate line disposed on the first substrate;   a fifth gate line disposed on the first substrate;   a sixth gate line disposed on the first substrate;   a third data line disposed on the first substrate;   a fourth data line disposed on the first substrate;   a fourth switching element connected to the fourth gate line and the third data line;   a fifth switching element connected to the fifth gate line and the fourth data line;   a sixth switching element connected to the sixth gate line and an output terminal of the fifth switching element; and   a third pixel electrode connected to the fourth switching element and a fourth pixel electrode connected to the fifth switching element and separated from the third pixel electrode,   wherein the fourth gate line is connected to the first gate line and transmits the first gate signal,   the fifth gate line is connected to the second gate line and transmits the second gate signal,   the sixth gate line is connected to the third gate line and transmits the third gate signal, and   the third pixel electrode and the fourth pixel electrode form a second liquid crystal capacitor.   
     
     
         14 . The liquid crystal display of  claim 13 , wherein
 the first data line and the third data line are disposed substantially adjacent to each other, and   the second data line and the fourth data line are disposed substantially adjacent to each other.   
     
     
         15 . The liquid crystal display of  claim 14 , wherein
 the third pixel electrode includes third branches,   the fourth pixel electrode includes fourth branches, and   the third branches of the third pixel electrode and the fourth branches of the fourth pixel electrode are alternately disposed on the first substrate.   
     
     
         16 . A liquid crystal display comprising:
 a first substrate;   a second substrate disposed opposite the first substrate;   a liquid crystal layer interposed between the first and second substrates and including liquid crystal molecules;   a first gate line disposed on the first substrate and which transmits a first gate signal;   a second gate line disposed on the first substrate and which transmits a gate signal;   a data line disposed on the first substrate;   a first switching element connected to the first gate line and the data line;   a second switching element connected to the second gate line and the data line;   a first pixel electrode connected to the first switching element;   a second pixel electrode connected to the second switching element and separated from the first pixel electrode; and   a step-up capacitor including a first capacitive electrode and a second capacitive electrode connected to the first and second switching elements, respectively, and which overlap each other with an insulating layer disposed therebetween,   wherein the first pixel electrode and the second pixel electrode form a first liquid crystal capacitor.   
     
     
         17 . The liquid crystal display of  claim 16 , wherein
 the first pixel electrode includes first branches,   the second pixel electrode includes second branches, and   the first branches of the first pixel electrode and the second branches of the second pixel electrode are alternately disposed on the first substrate.   
     
     
         18 . The liquid crystal display of  claim 17 , wherein
 when the first gate line receives a gate-on signal, the first pixel electrode and the first capacitive electrode receive the first data voltage from the data line, and   when the second gate line receives the gate-on signal, the second pixel electrode and the second capacitive electrode receive the second data voltage from the data line and voltages of the first pixel electrode and the first capacitive electrode are substantially increased.   
     
     
         19 . The liquid crystal display of  claim 16 , further comprising:
 a third switching element including an input terminal connected to the first gate line and an output terminal connected to the second pixel electrode and the second capacitive electrode, wherein the input terminal of the third switching element receives a common voltage.   
     
     
         20 . The liquid crystal display of  claim 19 , wherein
 when the first gate line receives the gate-on signal, the second pixel electrode and the second capacitive electrode receive the common voltage through the third switching element.