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US 9,430,975 B2Granted
Array substrate and the liquid crystal panel
AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorsXiaohui Yao, Cheng-hung Chen
Life of this patent
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Abstract
An array substrate and a liquid crystal panel are disclosed. Each of the pixel cells of the array substrate includes at least two pixel electrodes and at least two switch circuits. The first pixel electrode connects to the corresponding scanning line and corresponding data line of the pixel cell via the first switch circuit. The second pixel electrode connects to the corresponding scanning line of the pixel cell via the second switch circuit. The second pixel electrode connects to the first switch circuit at least via the second switch circuit such that the second pixel electrode is connected to the corresponding data line of the pixel cell. In this way, the color distortion in wide viewing angle and the display performance are enhanced.
Claims13
An array substrate, comprising:
- a plurality of scanning lines, a plurality of data lines, a plurality of pixel cells, and a common electrode for inputting a common voltage, and inch of the pixel cells corresponds to one scanning line and one data line;
- each of the pixel cells includes two pixel electrodes and two switch circuits, the two pixel electrode include a first pixel electrode and a second pixel electrode, the two switch circuits include a first switch circuit operating on the first pixel electrode and a second switch circuit operating on the second pixel electrode, each of the pixel cells further includes a controlled transistor having a control end, a first end, and a second end, the first pixel electrode connects to the corresponding scanning line and data line of the pixel cell via the first switch circuit, the second pixel electrode connects to the corresponding data line of the pixel cell via the second switch circuit, and the second pixel electrode connects to the first switch circuit at least via the second switch circuit such that the second pixel electrode connects to the corresponding data line of the pixel cell, the control end of the controlled transistor connects to the corresponding scanning line of the pixel cell, the first end of the controlled transistor connects to the second pixel electrode, and the second end of the controlled transistor connects to the common electrode;
- and
- wherein when the corresponding scanning line of the pixel cell inputs the scanning signals to turn on the first switch circuit, the second switch circuit and the controlled transistor, the first pixel electrode receives the data signals from the corresponding data lines of the pixel cell via the first switch circuit, the second pixel electrode receives the data signals from the corresponding data lines of the pixel cell via the first switch circuit and the second switch circuit in turn, the voltage difference between the first pixel electrode and the second pixel electrode is not equal to zero during operations of the first switch circuit and the second switch circuit, and a current amount of the first switch circuit is different from that of the second switch circuit when the switch, circuits are turned on so as to obtain different voltage difference between the first pixel electrode and the second pixel electrode, the controlled transistor is a discharging thins film transistor (TFT), a control end of the controlled transistor corresponds to a gate of the discharging TFT, a first end of the controlled transistor corresponds to a source of the discharging TFT and a second end of the controlled transistor corresponds to a drain of the discharging TFT, the discharging TFT changes the voltage of the second pixel electrode when the discharging TFT is turned on, a width/length ratio of the discharging TFT is smaller than a predetermined value such that the voltage difference between the second pixel electrode and the common electrode is decreased and is not equal to zero when the discharging TFT is turned on.
1 more element
An array substrate, comprising:
- a plurality of scanning lines, a plurality of data lines, a plurality of pixel cells, and a common electrode for inputting a common voltage, and each of the pixel cells corresponds to one scanning line and one data line;
- each of the pixel cells includes two pixel electrodes and two switch circuits, the two pixel electrode include a first pixel electrode and a second pixel electrode, the two switch circuits include a first switch circuit operating on the first pixel electrode and a second switch circuit operating on the second pixel electrode, each of the pixel cells further includes a controlled transistor having a control end, a first end, and a second end, the first pixel electrode connects to the corresponding scanning line and data line of the pixel cell via the first switch circuit, the second pixel electrode connects to the corresponding data line of the pixel cell via the second switch circuit, and the second pixel electrode connects to the first switch circuit at least via the second switch circuit such that the second pixel electrode connects to the corresponding data line of the pixel cell, the control end of the controlled transistor connects to the corresponding scanning line of the pixel cell, the first end of the controlled transistor connects to the second pixel electrode and the second end of the controlled transistor connects to the common electrode, and
- wherein when the corresponding scanning line of the pixel cell inputs the scanning signals to turn on the first switch circuit, the second switch circuit and the controlled transistor, the first pixel electrode receives the data signals from the corresponding data lines of the pixel cell via the first switch circuit, the second pixel electrode receives the data signals from the corresponding data lines of the pixel cell via the first switch circuit and the second switch circuit in turn, the voltage difference between the first pixel electrode and the second pixel electrode is not equal to zero during operations of the first switch circuit and the second switch circuit, and the controlled transistor changes the voltage of the second pixel electrode when the controlled transistor is turned on such that the voltage difference between the second pixel electrode and the common electrode is decreased and is not equal to zero.
A display panel, comprising:
- an array substrate, a color filtering substrate and a liquid crystal layer between the array substrate and the color filtering substrate, and
- the array substrate includes:
- a plurality of scanning lines, a plurality of data lines, a plurality of pixel cells, and a common electrode for inputting a common voltage, and each of the pixel cells corresponds to one scanning line and one data line;
- each of the pixel cells includes two pixel electrodes and two switch circuits, the two pixel electrode include a first pixel electrode and a second pixel electrode, the two switch circuits include a first switch circuit operating on the first pixel electrode and a second switch circuit operating on the second pixel electrode, each of the pixel cells further includes a controlled transistor having a control end, a first end, and a second end, the first pixel electrode connects to the corresponding scanning line and data line of the pixel cell via the first switch circuit, the second pixel electrode connects to the corresponding data line of the pixel cell via the second switch circuit, and the second pixel electrode connects to the first switch circuit at least via the second switch circuit such that the second pixel electrode connects to the corresponding data line of the pixel cell the control end of the controlled transistor connects to the corresponding scanning line of the pixel cell, the first end of the controlled transistor connects to the second pixel electrode, and the second end of the controlled transistor connects to the common electrode, and
- wherein when the corresponding scanning line of the pixel cell Inputs the scanning signals to turn on the first switch circuit, the second switch circuit and the controlled transistor, the first pixel electrode receives the data signals from the corresponding data lines of the pixel cell via the first switch circuit, the second pixel electrode receives the data signals from the corresponding data lines of the pixel cell pia the first switch circuit and the second switch circuit in turn, the voltage difference between the first pixel electrode and the second pixel electrode is not equal to zero during operations of the first switch circuit and the second switch circuit, and the controlled transistor changes the voltage of the second pixel electrode when the controlled transistor is turned on such that the voltage difference between the second pixel electrode and the common electrode is decreased and is not equal to zero.
2 more elements
Dependencies are inferred from the claim text.