1. A method of driving a display panel, the method comprising:
outputting odd-numbered and even-numbered gate signals having a first gate-on voltage during a first period;
outputting first data of odd-numbered and even-numbered horizontal lines in response to the odd-numbered and even-numbered gate signals having the first gate-on voltage;
outputting odd-numbered or even-numbered gate signals having a second gate-on voltage during a second period, wherein the second gate-on voltage is lower than the first gate-on voltage; and
outputting second data of the odd-numbered horizontal lines in response to the odd-numbered gate signals having the second gate-on voltage, or outputting second data of the even-numbered horizontal lines in response to the even-numbered gate signals having the second gate-on voltage,
wherein the second period corresponds to a first blank period, and when the odd-numbered gate signals having the second gate-on voltage and the second data of the odd-numbered horizontal lines are outputted during the first blank period, the even-numbered gate signals having the second gate-on voltage and the second data of the even-numbered horizontal lines are outputted during a second blank period, or
when the even-numbered gate signals having the second gate-on voltage and the second data of the even-numbered horizontal lines are outputted during the first blank period, the odd-numbered gate signals having the second gate-on volae and the second data of the odd-numbered horizontal lines are outputted during the second blank period.
2. The method of claim 1, wherein the first data of the odd-numbered and even-numbered horizontal lines is image data for a left eye or image data for a right eye.
3. The method of claim 2, wherein the second data of the odd-numbered or even-numbered horizontal lines is image data for the left eye when the first data of the odd-numbered and even-numbered horizontal lines is image data for the left eye, and the second data of the odd-numbered or even-numbered horizontal lines is image data for the right eye when the first data of the odd-numbered and even-numbered horizontal lines is image data for the right eye.
4. The method of claim 1, further comprising:
generating the first gate-on voltage and the second gate-on voltage based on a gate-on voltage control signal.
5. The method of claim 4, wherein generating the first gate-on voltage and the second gate-on voltage comprises:
generating the first gate-on voltage in response to the gate-on voltage control signal having a first level; and
generating the second gate-on voltage in response to the gate-on voltage control signal having a second level.
6. The method of claim 5, wherein generating the first gate-on voltage and the second gate-on voltage comprises:
receiving a first power voltage and amplifying the first power voltage to the first gate-on voltage in response to the gate-on voltage control signal having the first level; and
receiving a second power voltage and amplifying the second power voltage to the second gate-on voltage in response to the gate-on voltage control signal having the second level, wherein the second power voltage is lower than the first power voltage.
7. The method of claim 5, wherein generating the first gate-on voltage and the second gate-on voltage comprises:
dividing a power voltage to generate the first gate-on voltage in response to the gate-on voltage control signal having the first level; and
dividing the power voltage to generate the second gate-on voltage in response to the gate-on voltage control signal having the second level.
8. A display apparatus, comprising:
a display panel comprising a plurality of odd-numbered and even numbered gate lines and a plurality of data lines crossing the odd-numbered and even-numbered gate lines;
a gate driving part; and
a data driving part,
wherein, during a first period, the gate driving part outputs odd-numbered and even-numbered gate signals to the odd-numbered and even-numbered gate lines, respectively, wherein the odd-numbered and even-numbered gate signals have a first gate-on voltage, and
during a second period, the gate driving part outputs odd-numbered gate signals to the odd-numbered gate lines or even-numbered gate signals to the even-numbered gate lines, wherein the odd-numbered or even-numbered gate signals output during the second period have a second gate-on voltage lower than the first gate-on voltage, and
wherein during the first period, the data driving part outputs first data of odd-numbered and even-numbered horizontal lines to the data lines in response to the odd-numbered and even-numbered gate signals having the first gate-on voltage, and
during the second period, the data driving part outputs second data of the odd-numbered horizontal lines to the data lines in response to the odd-numbered gate signals having the second gate-on voltage, or outputs second data of the even-numbered horizontal lines to the data lines in response to the even-numbered gate signals having the second gate-on voltage,
wherein the second period corresponds to a first blank period, and when the odd-numbered gate signals having the second gate-on voltage and the second data of the odd-numbered horizontal lines are outputted during the first blank period, the even-numbered gate signals having the second gate-on voltage and the second data of the even-numbered horizontal lines are outputted during a second blank period, or
when the even-numbered gate signals having the second gate-on voltage and the second data of the even-numbered horizontal lines are outputted during the first blank period, the odd-numbered gate signals having the second gate-on voltage and the second data of the odd-numbered horizontal lines are outputted during the second blank period.
9. The display apparatus of claim 8, wherein the first data of the odd-numbered and even-numbered horizontal lines and the second data of the odd-numbered or even-numbered horizontal lines is image data for a left eye or image data for a right eye.
10. The display apparatus of claim 8, further comprising a timing controller outputting a gate-on voltage control signal controlling a level of the first and second gate-on voltages.
11. The display apparatus of claim 10, further comprising a voltage generator generating the first and second gate-on voltages based on the gate-on voltage control signal.
12. The display apparatus of claim 11, wherein the voltage generator generates the first gate-on voltage in response to the gate-on voltage control signal having a first level, and generates the second gate-on voltage in response to the gate-on voltage control signal having a second level.
13. The display apparatus of claim 12, wherein the voltage generator comprises a power voltage selector receiving a first power voltage in response to the gate-on voltage control signal having the first level, and receiving a second power voltage in response to the gate-on voltage control signal having the second level.
14. The display apparatus of claim 13, wherein the power voltage selector comprises a first switching element, and
the first switching element receives the second power voltage in response to the gate-on voltage control signal.
15. The display apparatus of claim 13, wherein the power voltage selector comprises a power controller that cuts off the first power voltage in response to the gate-on voltage control signal having the second level.
16. The display apparatus of claim 13, wherein the voltage generator comprises an amplifier amplifying the first or second power voltages received from the power voltage selector and generating the first or second gate-on voltages.
17. The display apparatus of claim 12, wherein the voltage generator comprises first and second resistors connected in series, and
in response to the gate-on voltage control signal having the first level, the voltage generator divides a power voltage to generate the first gate-on voltage using the first and second resistors.
18. The display apparatus of claim 17, wherein the voltage generator further comprises:
a third resistor; and
a second switching element selectively connecting the third resistor to the first resistor in parallel in response to the gate-on voltage control signal.
19. The display apparatus of claim 18, wherein in response to the gate-on voltage control signal having the second level, the voltage generator divides the power voltage to generate the second gate-on voltage using the third resistor and the first resistor connected in parallel and the second resistor.
20. A method of driving a display panel, the method comprising:
outputting, during a first active period of a frame, first gate signals to a first group of gate lines and second gate signals to a second group of gate lines, wherein the first and second gate signals have a first voltage level;
outputting, from a data driving part during the first active period, first data of first and second groups of horizontal lines in response to the first and second gate signals having the first voltage level;
outputting, during a first blank period of the frame, third gate signals to the first group of gate lines, wherein the third gate signals have a second voltage level that is lower than the first voltage level; and
outputting, from the data driving part during the first blank period, only second data of the first group of horizontal lines in response to the third gate signals having the second voltage level.
21. The method of claim 20, wherein when the first group of gate lines is odd-numbered gate lines, the second group of gate lines is even-numbered gate lines and the first group of horizontal lines is odd-numbered horizontal lines and when the first group of gate lines is even-numbered gate lines, the second group of gate lines is odd-numbered gate lines and the first group of horizontal lines is even-numbered horizontal lines.
22. The method of claim 20, wherein the frame includes the first active period, the first blank period, a second active period and a second blank period in sequence and only second data of the second group of horizontal lines is output from the data driving part during the second blank period.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for cleaning an oil strainer in an oil pan of an internal combustion engine from which substantially all lubricant has been drained, the method comprising:
removing an oil filter from an oil filter boss of said engine and sealing a first opening on said boss through which oil flows to an engine block of said engine during normal operation of said engine;
connecting a first conduit to said oil pan at a plug opening thereof;
introducing a cleaning fluid into said oil pan;
connecting a second conduit to a second opening on said boss of said engine;
creating a closed circuit by disposing a pressure pump in communication with said first and second conduits, wherein said cleaning fluid is pumped and moves from said oil pan, through said second opening, through said oil strainer and back into said oil pan, wherein said cleaning fluid is pumped in a direction reverse that of oil flow in said engine as occurs during normal operation of said engine and wherein said cleaning fluid in said closed circuit flows at a pressure great enough to open a by-pass valve of an oil pump of said engine in said closed circuit and maintain said by-pass valve in an open position; and
evacuating the cleaning fluid from the engine.
2. The method of claim 1 wherein said pressure pump is a positive displacement pump.
3. The method of claim 1, wherein said cleaning fluid in said circuit flows at a pressure of at least 30 psi.
4. The method of claim 1, further comprising using suction to drain said cleaning fluid from said oil pan.
5. The method of claim 1 wherein the cleaning fluid is introduced to the oil pan through said first conduit.
6. The method of claim 1, further comprising heating the engine prior to draining the lubricant from the internal combustion engine.
7. The method of claim 1, further comprising introducing an air blast to disrupt flow of cleaning fluid in the circuit.
8. The method of claim 7, wherein the air blast is at a pressure of at least 110 psi.
9. The method of claim 1, wherein the first conduit is in fluid communication with the second conduit.
10. The method of claim 1, wherein said first and second conduits are connected to said pressure pump.
11. A method of reducing oil sludge from an internal combustion engine having an engine block, oil pump and an oil strainer disposed with an oil pan, the method comprising:
draining substantially all lubricant from said engine;
removing an oil filter from an oil filter boss of said engine and sealing a first opening on said boss through which oil flows to said engine block during normal operation of said engine;
connecting a first conduit to said oil pan at a plug opening thereof;
introducing a cleaning fluid into said oil pan;
connecting a second conduit to a second opening on said boss of said engine;
creating a closed circuit through said conduits using a pressure pump, wherein said cleaning fluid moves from said oil pan, through said second opening, through said oil strainer and back into said oil pan, wherein said cleaning fluid is pumped in a direction reverse that of oil flow in said engine as occurs during normal operation of said engine; and
evacuating the cleaning fluid from the engine;
wherein said cleaning fluid in said circuit flows at a pressure great enough to open a by-pass valve of the oil pump and maintain said by-pass valve in an open position.
12. The method of claim 11 wherein said pressure pump is a positive displacement pump.
13. The method of claim 11, wherein said cleaning fluid in said circuit flows at a pressure of at least about 30 psi.
14. The method of claim 11 wherein the cleaning fluid is introduced to the oil pan through said first conduit.
15. A method for reducing carry-over oil contamination during an oil changing process for an internal combustion engine having an engine block, oil pump, oil strainer and an oil pan, the method comprising:
draining substantially all lubricant from said engine;
removing an oil filter from an oil filter boss of said engine and sealing a first opening on said boss through which oil flows to said engine block during normal operation of said engine;
connecting a first conduit to said oil pan at a plug opening thereof;
introducing a cleaning fluid into said oil pan;
connecting a second conduit to a second opening on said boss of said engine;
creating a closed circuit with a pressure pump wherein said cleaning fluid moves from said oil pan, through said second opening, through said oil strainer and back into said oil pan, wherein said cleaning fluid is pumped in a direction reverse that of oil flow in said engine as occurs during normal operation of said engine, and wherein said cleaning fluid in said closed circuit flows at a pressure great enough to open a by-pass valve of the oil pump while in said closed circuit and maintain said by-pass valve in an open position;
filtering said cleaning fluid through a filter media disposed in said first conduit;
evacuating the cleaning fluid from the engine; and
introducing a predetermined amount of clean oil to the engine.
16. The method of claim 15 wherein said pressure pump is a positive displacement pump.
17. The method of claim 15, wherein said cleaning fluid in said circuit flows at a pressure of at least about 30 psi.
18. The method of claim 15, wherein said first and second conduits are connected to said pressure pump.
19. A method of cleaning an oil flow path through components in an internal combustion engine, the method comprising:
removing an oil filter from an oil filter boss of the engine;
draining oil from the oil flow path;
after draining the oil, creating a closed circuit between a pressure pump and the components including an oil pump, an oil strainer, and an oil pan, with the closed circuit comprising the oil flow path;
pumping cleaning fluid through the closed circuit using the pressure pump, wherein the cleaning fluid is pumped in a direction reverse that of oil flow in the oil flow path as occurs during normal operation of the engine, and wherein the cleaning fluid in the closed circuit flows at a pressure great enough to open a by-pass valve of the oil pump and maintain the by-pass valve in an open position during the pumping;
wherein the pressure pump circulates the cleaning fluid from the oil pan through a plug opening thereof, through an opening disposed in the oil filter boss, through the oil pump, through the oil strainer, and then back to the oil pan; and
wherein the oil filter boss further includes a passage in communication with cams and mains of the engine, and the passage is blocked to prevent cleaning fluid from flowing to the cams and the mains.
20. The method of claim 19, further comprising:
evacuating the cleaning fluid from the engine.
21. The method of claim 19, wherein the closed circuit comprises a first conduit connecting the oil pan to the pressure pump and a second conduit connecting the pressure pump to the opening disposed in the oil filter boss of the engine.
22. The method of claim 19, further comprising pulsating the cleaning fluid.
23. The method of claim 19, further comprising heating the cleaning fluid.
24. The method of claim 19, further comprising injecting gas into the cleaning fluid.
25. The method of claim 19, further comprising filtering contaminants from the cleaning fluid while the cleaning fluid circulates through the closed circuit.
26. A method for cleaning an oil strainer in an internal combustion engine, the method comprising:
draining oil from the engine;
after draining the oil, creating a closed circuit between a pressure pump, an oil pump, an oil strainer, and an oil pan, with the closed circuit in part created by removing an oil filter from an oil filter boss of the engine and sealing a first opening on the boss through which oil flows to an engine block of the engine during normal operation of the engine;
pumping cleaning fluid through the closed circuit using the pressure pump, wherein the cleaning fluid is pumped in a direction reverse that of oil flow through the oil pump as occurs during normal operation of the engine, and wherein the cleaning fluid in the closed circuit flows at sufficient pressure to open a by-pass valve of the oil pump and maintain the by-pass valve in an open position during the pumping;
wherein the pressure pump circulates the cleaning fluid from the oil pan through a plug opening thereof, through a second opening in the oil filter boss, through the oil pump, through the oil strainer, and then back to the oil pan.
27. The method of claim 26, further comprising:
coupling an adaptor to the oil filter boss to seal the first opening.
28. The method of claim 26, further comprising:
coupling an adaptor to the second opening in the oil filter boss and permitting circulation of cleaning fluid therethrough.
29. The method of claim 26, wherein the cleaning fluid in the closed circuit flows at a pressure of at least about 30 psi.
30. The method of claim 1, further comprising:
coupling an adaptor to the oil filter boss to seal the first opening.
31. The method of claim 11, further comprising:
coupling an adaptor to the oil filter boss to seal the first opening.
32. The method of claim 15, further comprising:
coupling an adaptor to the oil filter boss to seal the first opening.
33. The method of claim 19, further comprising:
coupling an adaptor to the oil filter boss to block the passage.