CN101673526B - Liquid crystal display device and related drive method - Google Patents
Liquid crystal display device and related drive method Download PDFInfo
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- CN101673526B CN101673526B CN2009101797833A CN200910179783A CN101673526B CN 101673526 B CN101673526 B CN 101673526B CN 2009101797833 A CN2009101797833 A CN 2009101797833A CN 200910179783 A CN200910179783 A CN 200910179783A CN 101673526 B CN101673526 B CN 101673526B
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Abstract
The invention discloses a liquid crystal display device which switches two groups of gate drive circuits according to a predetermined cycle, by a time sharing activating mode, only one of the two groups of gate drive circuits is opened when one picture is displayed. The two groups of gate drive circuits can be arranged at one side of a gate line, or respectively arranged at both opposite sides of the gate line. The predetermined cycle for switching the gate drive circuits can switch every other picture, or switch every few pictures.
Description
Technical field
The present invention is relevant to a kind of liquid crystal indicator and drive method thereof, refers to a kind of liquid crystal indicator and drive method thereof that utilizes many group circuit to come timesharing to drive especially.
Background technology
LCD (liquid crystal display, LCD) have low radiation, volume is little and advantage such as low power consuming, replace traditional cathode-ray tube (CRT) (cathode ray tube display gradually, CRT) display, thereby be widely used in notebook computer, personal digital assistant (personaldigital assistant, PDA), flat-surface television, or on the information products such as mobile phone.The mode of conventional liquid crystal is to utilize the external drive chip to drive pixel on the panel with display image, but in order to reduce component number and to reduce manufacturing cost, the structure that develops into gradually in recent years driving circuit directly is made on the display panel, for example use gate driver circuit (gate driver) is integrated in liquid crystal panel (gate on array, technology GOA).
Please refer to Fig. 1, Fig. 1 is the simplification block schematic diagram of a liquid crystal indicator 700 in the prior art.Fig. 1 has only shown the part-structure of liquid crystal indicator 700, comprises many gate lines G L (1)～GL (N), a gate driver circuit 10 and time schedule controller (timing controller) 20.Gate lines G L (1)～GL (N) is located in the viewing area 30 of liquid crystal indicator 700, can drive pixel according to gate drive signal GS (1)～GS (N) respectively.Gate driver circuit 10 is located in the non-display area 40 of liquid crystal indicator 700, it comprises multistage displacement temporary storage unit SR (1)～SR (N), can export gate drive signal GS (1)～GS (N) to corresponding gate lines G L (1)～GL (N) according to initial pulse signal VST (1) and clock signal C K, the XCK that time schedule controller 20 is produced, wherein N is a positive integer.Liquid crystal indicator 700 adopts the framework of monolateral layout single-ended drive, that is gate driver circuit 10 is sides that are arranged at gate lines G L (1)～GL (N), and comes driving grid line GL (1) from the same side～GL (N).
Please refer to Fig. 2, Fig. 2 is the sequential chart of liquid crystal indicator 700 when running of prior art.When driving liquid crystal indicator 700, first order displacement temporary storage unit SR (1) exports first order gate drive signal GS (1) according to the initial pulse signal VST (1) that time schedule controller 20 is produced, and the second level to the N level displacement temporary storage unit SR (2)～SR (N) then exports the second level to the N level gate drive signal GS (2)～GS (N) according to initial pulse signal VST (2)～VST (N) that previous stage displacement temporary storage unit SR (1)～SR (N-1) is produced respectively.Fig. 2 has illustrated liquid crystal indicator 700 in showing a plurality of pictures when two adjacent picture F (N) and F (N+1), the sequential chart of initial pulse signal VST (1)～VST (N).
LCD generally use no crystal silicon (amorphous silicon, a-Si) processing procedure make thin film transistor (TFT) in each displacement temporary storage unit (thin film transistor, TFT).The electrical characteristics of thin film transistor (TFT) are relevant to the stress of its grid voltage, and the time that applies grid voltage is long more, and the electrical characteristics deterioration situation of thin film transistor (TFT) is serious more, so can reduce the term of life and the fiduciary level of LCD.
Summary of the invention
The invention provides a kind of liquid crystal indicator, comprise the viewing area, which is provided with N bar gate line parallel to each other, wherein N is a positive integer; First non-display area and second non-display area lay respectively at two subtends of this viewing area; First driving circuit, it operates according to first group of control signal, this first driving circuit is located in this first non-display area and is comprised first displacement temporary storage unit of N level serial connection, wherein a n level first displacement temporary storage unit is used for driving in this N bar gate line a corresponding n bar gate line showing first picture in a plurality of pictures in this N level first displacement temporary storage unit, and n is the positive integer that is not more than N; And second driving circuit, it operates and comprises second displacement temporary storage unit of N level serial connection according to second group of control signal, wherein a n level second displacement temporary storage unit is used for driving this n bar gate line to show second picture that is connected in these a plurality of pictures behind this first picture in this N level second displacement temporary storage unit.
The present invention also provides a kind of liquid crystal indicator, comprises a viewing area, which is provided with many gate lines parallel to each other; One first non-display area and one second non-display area lay respectively at two subtends of this viewing area; One first driving circuit, be located in this first non-display area and and operate according to one first group of control signal, this first driving circuit comprises first displacement temporary storage unit of multi-stage serial connection, is used for driving in these many gate lines corresponding odd number bar gate line respectively to show one first picture in a plurality of pictures; One second driving circuit, be located in this second non-display area and and operate according to one second group of control signal, this second driving circuit comprises second displacement temporary storage unit of multi-stage serial connection, is used for driving in these many gate lines corresponding even number bar gate line respectively to show this first picture; One the 3rd driving circuit, it operates and comprises the 3rd displacement temporary storage unit of multi-stage serial connection according to one the 3rd group of control signal, is used for driving this corresponding odd number bar gate line respectively to show one second picture that is connected in these a plurality of pictures behind this first picture; And the moving circuit of a 4 wheel driven, one the 4th group of control signal of its foundation operates and comprises the 4th displacement temporary storage unit of multi-stage serial connection, is used for driving this corresponding even number bar gate line respectively to show this second picture.
The present invention also provides a kind of liquid crystal indicator, comprises a viewing area, which is provided with N bar gate line parallel to each other, and wherein N is a positive integer; One first non-display area and one second non-display area lay respectively at two subtends of this viewing area; One first driving circuit, be located in this first non-display area and and operate according to one first group of control signal, this first driving circuit comprises first displacement temporary storage unit of N level serial connection, is used for driving in this N bar gate line corresponding gate line respectively to show one first picture in a plurality of pictures; One second driving circuit, it operates according to one second group of control signal, and this second driving circuit comprises second displacement temporary storage unit of N level serial connection, is used for driving corresponding this N bar gate line respectively to show this first picture; One the 3rd driving circuit, be located in this first non-display area and and operate according to one the 3rd group of control signal, the 3rd driving circuit comprises the 3rd displacement temporary storage unit of N level serial connection, is used for driving corresponding this N bar gate line respectively to show one second picture that is connected in these a plurality of pictures behind this first picture; And the moving circuit of a 4 wheel driven, be located in this second non-display area and and operate according to one the 4th group of control signal, the moving circuit of this 4 wheel driven comprises the 4th displacement temporary storage unit of N level serial connection, is used for driving corresponding this N bar gate line respectively to show this second picture.
The present invention also provides a kind of liquid crystal indicator, comprises a viewing area, which is provided with many gate lines parallel to each other; One first non-display area and one second non-display area lay respectively at two subtends of this viewing area; One first driving circuit, be located in this first non-display area and and operate according to one first group of control signal, this first driving circuit comprises first displacement temporary storage unit of multi-stage serial connection, is used for driving in these many gate lines corresponding odd number bar gate line respectively to show one first picture in a plurality of pictures; One second driving circuit, be located in this first non-display area and and operate according to one second group of control signal, this second driving circuit comprises second displacement temporary storage unit of multi-stage serial connection, is used for driving in these many gate lines corresponding even number bar gate line respectively to show this first picture; One the 3rd driving circuit, be located in this second non-display area and and operate according to one the 3rd group of control signal, the 3rd driving circuit comprises the 3rd displacement temporary storage unit of multi-stage serial connection, is used for driving this corresponding odd number bar gate line respectively to show one second picture that is connected in these a plurality of pictures behind this first picture; And the moving circuit of a 4 wheel driven, be located in this second non-display area and and operate according to one the 4th group of control signal, the moving circuit of this 4 wheel driven comprises the 4th displacement temporary storage unit of multi-stage serial connection, is used for driving this corresponding even number bar gate line respectively to show this second picture.
The present invention also provides a kind of driving method of liquid crystal indicator, comprises with one first driving circuit to drive a gate line to show one first picture in a plurality of pictures; And close this first driving circuit and drive this gate line to show one second picture that is connected in these a plurality of pictures behind this first picture with one second driving circuit.
Description of drawings
Fig. 1 is the simplification block schematic diagram of a liquid crystal indicator in the prior art.
Fig. 2 is the sequential chart of liquid crystal indicator when running of Fig. 1.
Fig. 3 is the simplification block schematic diagram of a liquid crystal indicator in the first embodiment of the invention.
Fig. 4 is the simplification block schematic diagram of a liquid crystal indicator in the second embodiment of the invention.
Fig. 5 is the sequential chart of liquid crystal indicator when operating of the present invention first and second embodiment.
Fig. 6 is the simplification block schematic diagram of a liquid crystal indicator in the third embodiment of the invention.
Fig. 7 is the simplification block schematic diagram of a liquid crystal indicator in the fourth embodiment of the invention.
Fig. 8 is the simplification block schematic diagram of a liquid crystal indicator in the fifth embodiment of the invention.
Fig. 9 is the sequential chart of liquid crystal indicator when operating of the present invention the 3rd to the 5th embodiment.
Figure 10 is the simplification block schematic diagram of a liquid crystal indicator in the sixth embodiment of the invention.
Figure 11 is the sequential chart of liquid crystal indicator when running of sixth embodiment of the invention.
[main element label declaration]
20 time schedule controller GL (1)～GL (N) gate line
30 viewing areas 40,40L, 40R non-display area
10,11,10A, 10A ', 10B, 10B ' gate driver circuit
100,200,300,400,500,600,700 liquid crystal indicators
SR (1), SR (2), SR (N), SR ' (1), SR ' (2), SR ' (N), SR_A (1), SR_A (2), SR_A (n), SR_A (N), SR_A ' (1), SR_A ' (2), SR_A ' (n), SR_A ' (N), SR_B (1), SR_B (2), SR_B (n), SR_B (N), SR_B ' (1), SR_B ' (2), SR_B ' (n), (N) displacement temporary storage unit of SR_B '
Embodiment
Please refer to Fig. 3, Fig. 3 is the simplification block schematic diagram of a liquid crystal indicator 100 in the first embodiment of the invention.Fig. 3 has only shown the part-structure of liquid crystal indicator 100, comprises many gate lines G L (1)～GL (N), two gate driver circuits 10 and 11, and time schedule controller 20.Gate lines G L (1)～GL (N) is located in the viewing area 30 of liquid crystal indicator 100, can drive pixel according to gate drive signal GS (1)～GS (N) respectively.Gate driver circuit 10 is located in the non-display area 40L of liquid crystal indicator 100, it comprises multistage displacement temporary storage unit SR (1)～SR (N), can export gate drive signal GS (1)～GS (N) respectively to corresponding gate lines G L (1)～GL (N) according to initial pulse signal VST (1) and clock signal C K, the XCK that time schedule controller 20 is produced; Gate driver circuit 11 is located in the non-display area 40R of liquid crystal indicator 100, it comprises multistage displacement temporary storage unit SR ' (1)～SR ' (N), can export gate drive signal GS (1)～GS (N) respectively to corresponding gate lines G L (1)～GL (N) according to initial pulse signal VST ' (1) and clock signal C K ', the XCK ' that time schedule controller 20 is produced.Wherein, non-display area 40L and 40R lay respectively at two subtends of viewing area 30, and N is a positive integer.In Fig. 3, the sign scope of viewing area 30 and non-display area 40L, 40R only for the position of each element is described, does not limit the actual size ratio of each element in the liquid crystal indicator 100 of the present invention.
The liquid crystal indicator 100 of first embodiment of the invention adopts the framework of bilateral layout single-ended drive, and the mode that starts with timesharing drives.In other words, gate driver circuit 10 and 11 is arranged at two subtends of gate lines G L (1)～GL (N) respectively, during a picture F (N), gate drive signal GS (1)～GS (N) provides (being represented by solid arrow) by the gate driver circuit 10 in Fig. 3 left side in showing a plurality of pictures; When demonstration continued afterwards picture F (N+1) of picture F (N), gate drive signal GS (1)～GS (N) provided (being represented by dotted arrow) by the gate driver circuit 11 on Fig. 3 right side.
Please refer to Fig. 4, Fig. 4 is the simplification block schematic diagram of a liquid crystal indicator 200 in the second embodiment of the invention.Fig. 4 has only shown the part-structure of liquid crystal indicator 200, comprises many gate lines G L (1)～GL (N), two gate driver circuits 10 and 11 and time schedule controller 20.Gate lines G L (1)～GL (N) is located in the viewing area 30 of liquid crystal indicator 200, can drive pixel according to gate drive signal GS (1)～GS (N) respectively.Gate driver circuit 10 is located in the non-display area 40 of liquid crystal indicator 200, it comprises multistage displacement temporary storage unit SR (1)～SR (N), can export gate drive signal GS (1)～GS (N) respectively to corresponding gate lines G L (1)～GL (N) according to initial pulse signal VST (1) and clock signal C K, the XCK that time schedule controller 20 is produced; Gate driver circuit 11 also is located in the non-display area 40 of liquid crystal indicator 200, it comprises multistage displacement temporary storage unit SR ', and (1)～SR ' (N), can export gate drive signal GS (1)～GS (N) respectively to corresponding gate lines G L (1)～GL (N) according to initial pulse signal VST ' (1) and clock signal C K ', the XCK ' that time schedule controller 20 is produced, wherein N is a positive integer.In Fig. 4, the sign scope of viewing area 30 and non-display area 40 only for the position of each element is described, does not limit the actual size ratio of each element in the liquid crystal indicator 200 of the present invention.
The liquid crystal indicator 200 of second embodiment of the invention adopts the framework of monolateral layout single-ended drive, and the mode that starts with timesharing drives.In other words, gate driver circuit 10 and 11 all is arranged at the side of gate lines G L (1)～GL (N), and comes driving grid line GL (1) from the same side～GL (N).During a picture F (N), gate drive signal GS (1)～GS (N) provides (being represented by solid arrow) by gate driver circuit 10 in showing a plurality of pictures; When demonstration continued afterwards picture F (N+1) of picture F (N), gate drive signal GS (1)～GS (N) provided (being represented by dotted arrow) by gate driver circuit 11.
Please refer to Fig. 5, Fig. 5 is the liquid crystal indicator 100 of first embodiment of the invention and the sequential chart of liquid crystal indicator 200 when running of second embodiment of the invention.In gate driver circuit 10, first order displacement temporary storage unit SR (1) exports first order gate drive signal GS (1) according to the initial pulse signal VST (1) that time schedule controller 20 is produced, and the second level to the N level displacement temporary storage unit SR (2)～SR (N) then exports the second level to the N level gate drive signal GS (2)～GS (N) respectively according to initial pulse signal VST (2)～VST (N) that previous stage displacement temporary storage unit SR (1)～SR (N-1) is produced respectively; In gate driver circuit 11, first order displacement temporary storage unit SR ' (1) exports first order gate drive signal GS (1) according to the initial pulse signal VST ' (1) that time schedule controller 20 is produced, and initial pulse signal VST ' (2)～VST ' that the second level to the N level displacement temporary storage unit SR ' (2)～SR ' (N) then (N-1) is produced according to previous stage displacement temporary storage unit SR ' (1)～SR ' respectively (N) exports the second level to the N level gate drive signal GS (2)～GS (N).In the liquid crystal indicator 100 and 200 in the present invention, two groups of gate driver circuits 10 and 11 can the alternately opening and closing according to different pictures, and the cycle of alternation switch can be one or more pictures.Suppose in a plurality of pictures between the two adjacent picture F (N) and F (N+1) for switching the time point of gate driver circuit 10 and 11, this moment initial pulse signal VST (1)～VST (N) and VST ' (1)～VST ' sequential chart (N) as shown in Figure 5.
Please refer to Fig. 6, Fig. 6 is the simplification block schematic diagram of a liquid crystal indicator 300 in the third embodiment of the invention.Fig. 6 has only shown the part-structure of liquid crystal indicator 300, comprises many gate lines G L (1)～GL (N), four gate driver circuit 10A, 10B, 10A ' and 10B ', and time schedule controller 20.Gate lines G L (1)～GL (N) is located in the viewing area 30 of liquid crystal indicator 300, can drive pixel according to gate drive signal GS (1)～GS (N) respectively.Gate driver circuit 10A is located in the non-display area 40L of liquid crystal indicator 300, it comprises multistage displacement temporary storage unit SR_A (1)～SR_A (n), the initial pulse signal VST_A (1) that can be produced according to time schedule controller 20 and clock signal C KA, XCKA export respectively odd level gate drive signal GS (1), GS (3) ..., GS (N-1) to corresponding odd number bar gate lines G L (1), GL (3) ..., GL (N-1).Gate driver circuit 10B is located in the non-display area 40L of liquid crystal indicator 300, it comprises multistage displacement temporary storage unit SR_B (1)～SR_B (n), the initial pulse signal VST_B (1) that can be produced according to time schedule controller 20 and clock signal C KB, XCKB export respectively even level gate drive signal GS (2), GS (4) ..., GS (N) to corresponding even number bar gate lines G L (2), GL (4) ..., GL (N).Gate driver circuit 10A ' is located in the non-display area 40R of liquid crystal indicator 300, it comprises multistage displacement temporary storage unit SR_A ' (1)～SR_A ' (n), the initial pulse signal VST_A ' (1) that can be produced according to time schedule controller 20 and clock signal C KA ', XCKA ' export respectively odd level gate drive signal GS (1), GS (3) ..., GS (N-1) to corresponding odd number bar gate lines G L (1), GL (3) ..., GL (N-1).Gate driver circuit 10B ' is located in the non-display area 40R of liquid crystal indicator 300, it comprises multistage displacement temporary storage unit SR_B ' (1)～SR_B ' (n), the initial pulse signal VST_B ' (1) that can be produced according to time schedule controller 20 and clock signal C KB ', XCKB ' export respectively even level gate drive signal GS (2), GS (4) ..., GS (N) to corresponding even number bar gate lines G L (2), GL (4) ..., GL (N).Wherein, non-display area 40L and 40R lay respectively at two subtends of viewing area 30, and N and n are positive integer, and the value of N is 2n.In Fig. 6, the sign scope of viewing area 30 and non-display area 40L, 40R only for the position of each element is described, does not limit the actual size ratio of each element in the liquid crystal indicator 300 of the present invention.
The liquid crystal indicator 300 of third embodiment of the invention adopts the framework of bilateral layout single-ended drive, and the mode that starts with timesharing drives.In other words, gate driver circuit 10A and 10B are arranged at the side of gate lines G L (1)～GL (N), gate driver circuit 10A ' and 10B ' are arranged at the opposite side of gate lines G L (1)～GL (N), are arranged at the wherein gate driver circuit of a side of gate lines G L (1)～GL (N) but only can open during display frame.For instance, in showing a plurality of pictures during a picture F (N), gate driver circuit 10A and 10B be for opening, and gate driver circuit 10A ' and 10B ' be for closing, and gate drive signal GS (1)～GS (N) provides (being represented by solid arrow) by gate driver circuit 10A and 10B at this moment; When demonstration continues afterwards picture F (N+1) of picture F (N), gate driver circuit 10A ' and 10B ' are for opening, and gate driver circuit 10A and 10B be for closing, and this moment, gate drive signal GS (1)～GS (N) provided (being represented by dotted arrow) by gate driver circuit 10A ' and 10B '.
Please refer to Fig. 7, Fig. 7 is the simplification block schematic diagram of a liquid crystal indicator 400 in the fourth embodiment of the invention.Fig. 7 has only shown the part-structure of liquid crystal indicator 400, comprises many gate lines G L (1)～GL (N), four gate driver circuit 10A, 10B, 10A ' and 10B ', and time schedule controller 20.Gate lines G L (1)～GL (N) is located in the viewing area 30 of liquid crystal indicator 400, can drive pixel according to gate drive signal GS (1)～GS (N) respectively.Gate driver circuit 10A is located in the non-display area 40L of liquid crystal indicator 400, it comprises multistage displacement temporary storage unit SR_A (1)～SR_A (n), the initial pulse signal VST_A (1) that can be produced according to time schedule controller 20 and clock signal C KA, XCKA export respectively odd level gate drive signal GS (1), GS (3) ..., GS (N-1) to corresponding odd number bar gate lines G L (1), GL (3) ..., GL (N-1).Gate driver circuit 10B is located in the non-display area 40R of liquid crystal indicator 400, it comprises multistage displacement temporary storage unit SR_B (1)～SR_B (n), the initial pulse signal VST_B (1) that can be produced according to time schedule controller 20 and clock signal C KB, XCKB export respectively even level gate drive signal GS (2), GS (4) ..., GS (N) to corresponding even number bar gate lines G L (2), GL (4) ..., GL (N).Gate driver circuit 10A ' is located in the non-display area 40R of liquid crystal indicator 400, it comprises multistage displacement temporary storage unit SR_A ' (1)～SR_A ' (n), the initial pulse signal VST_A ' (1) that can be produced according to time schedule controller 20 and clock signal C KA ', XCKA ' export respectively odd level gate drive signal GS (1), GS (3) ..., GS (N-1) to corresponding odd number bar gate lines G L (1), GL (3) ..., GL (N-1).Gate driver circuit 10B ' is located in the non-display area 40L of liquid crystal indicator 400, it comprises multistage displacement temporary storage unit SR_B ' (1)～SR_B ' (n), the initial pulse signal VST_B ' (1) that can be produced according to time schedule controller 20 and clock signal C KB ', XCKB ' export respectively even level gate drive signal GS (2), GS (4) ..., GS (N) to corresponding even number bar gate lines G L (2), GL (4) ..., GL (N).Wherein, non-display area 40L and 40R lay respectively at two subtends of viewing area 30, and N and n are positive integer, and the value of N is 2n.In Fig. 7, the sign scope of viewing area 30 and non-display area 40L, 40R only for the position of each element is described, does not limit the actual size ratio of each element in the liquid crystal indicator 400 of the present invention.
The framework that the liquid crystal indicator 400 of fourth embodiment of the invention adopts bilateral layout both-end to drive, and the mode that starts with timesharing drives.In other words, gate driver circuit 10A and 10A ' are arranged at two subtends of gate lines G L (1)～GL (N) respectively, and gate driver circuit 10B and 10B ' are arranged at two subtends of gate lines G L (1)～GL (N) respectively, but only can respectively open a gate driver circuit in the both sides of gate lines G L (1)～GL (N) during display frame.For instance, in showing a plurality of pictures during a picture F (N), gate driver circuit 10A and 10B be for opening, and gate driver circuit 10A ' and 10B ' be for closing, and gate drive signal GS (1)～GS (N) provides (being represented by solid arrow) by gate driver circuit 10A and 10B at this moment; When demonstration continues afterwards picture F (N+1) of picture F (N), gate driver circuit 10A ' and 10B ' are for opening, and gate driver circuit 10A and 10B be for closing, and this moment, gate drive signal GS (1)～GS (N) provided (being represented by dotted arrow) by gate driver circuit 10A ' and 10B '.
Please refer to Fig. 8, Fig. 8 is the simplification block schematic diagram of a liquid crystal indicator 500 in the fifth embodiment of the invention.Fig. 8 has only shown the part-structure of liquid crystal indicator 500, comprises many gate lines G L (1)～GL (N), four gate driver circuit 10A, 10B, 10A ' and 10B ', and time schedule controller 20.Gate lines G L (1)～GL (N) is located in the viewing area 30 of liquid crystal indicator 500, can drive pixel according to gate drive signal GS (1)～GS (N) respectively.Gate driver circuit 10A is located in the non-display area 40L of liquid crystal indicator 500, it comprises multistage displacement temporary storage unit SR_A (1)～SR_A (n), the initial pulse signal VST_A (1) that can be produced according to time schedule controller 20 and clock signal C KA, XCKA export respectively odd level gate drive signal GS (1), GS (3) ..., GS (N-1) to corresponding odd number bar gate lines G L (1), GL (3) ..., GL (N-1).Gate driver circuit 10B is located in the non-display area 40R of liquid crystal indicator 500, it comprises multistage displacement temporary storage unit SR_B (1)～SR_B (n), the initial pulse signal VST_B (1) that can be produced according to time schedule controller 20 and clock signal C KB, XCKB export respectively even level gate drive signal GS (2), GS (4) ..., GS (N) to corresponding even number bar gate lines G L (2), GL (4) ..., GL (N).Gate driver circuit 10A ' is located in the non-display area 40L of liquid crystal indicator 500, it comprises multistage displacement temporary storage unit SR_A ' (1)～SR_A ' (n), the initial pulse signal VST_A ' (1) that can be produced according to time schedule controller 20 and clock signal C KA ', XCKA ' export respectively odd level gate drive signal GS (1), GS (3) ..., GS (N-1) to corresponding odd number bar gate lines G L (1), GL (3) ..., GL (N-1).Gate driver circuit 10B ' is located in the non-display area 40R of liquid crystal indicator 500, it comprises multistage displacement temporary storage unit SR_B ' (1)～SR_B ' (n), the initial pulse signal VST_B ' (1) that can be produced according to time schedule controller 20 and clock signal C KB ', XCKB ' export respectively even level gate drive signal GS (2), GS (4) ..., GS (N) to corresponding even number bar gate lines G L (2), GL (4) ..., GL (N).Wherein, non-display area 40L and 40R lay respectively at two subtends of viewing area 30, and N and n are positive integer, and the value of N is 2n.In Fig. 8, the sign scope of viewing area 30 and non-display area 40L, 40R only for the position of each element is described, does not limit the actual size ratio of each element in the liquid crystal indicator 500 of the present invention.
The framework that the liquid crystal indicator 500 of fifth embodiment of the invention adopts bilateral layout both-end to drive, and the mode that starts with timesharing drives.In other words, gate driver circuit 10A and 10A ' are arranged at the side of gate lines G L (1)～GL (N), gate driver circuit 10B and 10B ' then are arranged at the opposite side of gate lines G L (1)～GL (N), but only can respectively open a gate driver circuit in the both sides of gate lines G L (1)～GL (N) during display frame.For instance, in showing a plurality of pictures during a picture F (N), gate driver circuit 10A and 10B be for opening, and gate driver circuit 10A ' and 10B ' be for closing, and gate drive signal GS (1)～GS (N) provides (being represented by solid arrow) by gate driver circuit 10A and 10B at this moment; When demonstration continues afterwards picture F (N+1) of picture F (N), gate driver circuit 10A ' and 10B ' are for opening, and gate driver circuit 10A and 10B be for closing, and this moment, gate drive signal GS (1)～GS (N) provided (being represented by dotted arrow) by gate driver circuit 10A ' and 10B '.
Please refer to Fig. 9, Fig. 9 is the liquid crystal indicator 300 of third embodiment of the invention, the liquid crystal indicator 400 of fourth embodiment of the invention and the sequential chart of liquid crystal indicator 500 when running of fifth embodiment of the invention.In gate driver circuit 10A, displacement temporary storage unit SR_A (1) exports first order gate drive signal GS (1) according to the initial pulse signal VST_A (1) that time schedule controller 20 is produced, displacement temporary storage unit SR_A (2)～SR_A (n) then respectively according to initial pulse signal VST_A (2)～VST_A (n) that previous stage displacement temporary storage unit SR_A (1)～SR_A (n-1) is produced export respectively odd level gate drive signal GS (3), GS (5) ..., GS (N-1).In gate driver circuit 10B, displacement temporary storage unit SR_B (1) exports second level gate drive signal GS (2) according to the initial pulse signal VST_B (1) that time schedule controller 20 is produced, displacement temporary storage unit SR_B (2)～SR_B (n) then respectively according to initial pulse signal VST_B (2)～VST_B (n) that previous stage displacement temporary storage unit SR_B (1)～SR_B (n-1) is produced export respectively even level gate drive signal GS (2), GS (4) ..., GS (N).In gate driver circuit 10A ', displacement temporary storage unit SR_A ' (1) exports first order gate drive signal GS (1) according to the initial pulse signal VST_A ' (1) that time schedule controller 20 is produced, initial pulse signal VST_A ' (2)～VST_A ' that displacement temporary storage unit SR_A ' (2)～SR_A ' (n) then (n-1) is produced according to previous stage displacement temporary storage unit SR_A ' (1)～SR_A ' respectively (n) export respectively odd level gate drive signal GS (3), GS (5) ..., GS (N-1).In gate driver circuit 10B ', displacement temporary storage unit SR_B ' (1) exports second level gate drive signal GS (2) according to the initial pulse signal VST_B ' (1) that time schedule controller 20 is produced, initial pulse signal VST_B ' (2)～VST_B ' that displacement temporary storage unit SR_B (2)～SR_B (n) then (n-1) is produced according to previous stage displacement temporary storage unit SR_B ' (1)～SR_B ' respectively (n) export respectively even level gate drive signal GS (4), GS (6) ..., GS (N).In the liquid crystal indicator 300,400 and 500 in the present invention, gate driver circuit 10A/10B and gate driver circuit 10A '/10B ' can the alternately opening and closing according to different pictures, and the cycle of alternation switch can be one or more pictures.Suppose in a plurality of pictures between the two adjacent picture F (N) and F (N+1) for switching the time point of gate driver circuit 10A/10B and gate driver circuit 10A '/10B ', this moment initial pulse signal VST_A (1)～VST_A (n), VST_B (1)～VST_B (n), VST_A ' (1)～VST_A ' (n) and VST_B ' (1)～VST_B ' sequential chart (n) as shown in Figure 9.
Please refer to Figure 10, Figure 10 is the simplification block schematic diagram of a liquid crystal indicator 600 in the sixth embodiment of the invention.Figure 10 has only shown the part-structure of liquid crystal indicator 600, comprises many gate lines G L (1)～GL (N), four gate driver circuit 10A, 10B, 10A ' and 10B ', and time schedule controller 20.Gate lines G L (1)～GL (N) is located in the viewing area 30 of liquid crystal indicator 600, can drive pixel according to gate drive signal GS_A (1)～GS_A (N) and GS_B (1)～GS_B (N) respectively.Gate driver circuit 10A is located in the non-display area 40L of liquid crystal indicator 600, it comprises multistage displacement temporary storage unit SR_A (1)～SR_A (N), can export gate drive signal GS_A (1)～GS_A (N) respectively to corresponding gate lines G L (1)～GL (N) according to initial pulse signal VST_A (1) and clock signal C KA, the XCKA that time schedule controller 20 is produced.Gate driver circuit 10B is located in the non-display area 40R of liquid crystal indicator 600, it comprises multistage displacement temporary storage unit SR_B (1)～SR_B (N), can export gate drive signal GS_B (1)～GS_B (N) respectively to corresponding gate lines G L (1)～GL (N) according to initial pulse signal VST_B (1) and clock signal C KB, the XCKB that time schedule controller 20 is produced.Gate driver circuit 10A ' is located in the non-display area 40L of liquid crystal indicator 600, it comprises multistage displacement temporary storage unit SR_A ' (1)～SR_A ' (N), can export gate drive signal GS_A (1)～GS_A (N) respectively to corresponding gate lines G L (1)～GL (N) according to initial pulse signal VST_A ' (1) and clock signal C KA ', the XCKA ' that time schedule controller 20 is produced.Gate driver circuit 10B ' is located in the non-display area 40R of liquid crystal indicator 600, it comprises multistage displacement temporary storage unit SR_B ' (1)～SR_B ' (N), can export gate drive signal GS_B (1)～GS_B (N) respectively to corresponding gate lines G L (1)～GL (N) according to initial pulse signal VST_B ' (1) and clock signal C KB ', the XCKB ' that time schedule controller 20 is produced.Wherein, non-display area 40L and 40R lay respectively at two subtends of viewing area 30, and N is a positive integer.In Figure 10, the sign scope of viewing area 30 and non-display area 40L, 40R only for the position of each element is described, does not limit the actual size ratio of each element in the liquid crystal indicator 600 of the present invention.
The framework that the liquid crystal indicator 600 of sixth embodiment of the invention adopts bilateral layout both-end to drive, and the mode that starts with timesharing drives.In other words, gate driver circuit 10A and 10B are arranged at two subtends of gate lines G L (1)～GL (N) respectively, and gate driver circuit 10A ' and 10B ' are arranged at two subtends of gate lines G L (1)～GL (N) respectively, can all respectively open a gate driver circuit in the both sides of gate lines G L (1)～GL (N) during display frame.For instance, in showing a plurality of pictures during a picture F (N), gate driver circuit 10A and 10B are for opening, and gate driver circuit 10A ' and 10B ' be for closing, and this moment, gate drive signal GS_A (1)～GS_A (N) and GS_B (1)～GS_B (N) provided (being represented by solid arrow) by gate driver circuit 10A and 10B respectively; When demonstration continues afterwards picture F (N+1) of picture F (N), gate driver circuit 10A ' and 10B ' are for opening, and gate driver circuit 10A and 10B be for closing, and this moment, gate drive signal GS_A (1)～GS_A (N) and GS_B (1)～GS_B (N) provided (being represented by dotted arrow) by gate driver circuit 10A ' and 10B ' respectively.
Please refer to Figure 11, Figure 11 is the sequential chart of liquid crystal indicator 600 when running of sixth embodiment of the invention.In gate driver circuit 10A, displacement temporary storage unit SR_A (1) exports gate drive signal GS_A (1) according to the initial pulse signal VST_A (1) that time schedule controller 20 is produced, and displacement temporary storage unit SR_A (2)～SR_A (N) then exports gate drive signal GS_A (2)～GS_A (N) respectively according to initial pulse signal VST_A (2)～VST_A (N) that previous stage displacement temporary storage unit SR_A (1)～SR_A (N-1) is produced respectively.In gate driver circuit 10B, displacement temporary storage unit SR_B (1) exports gate drive signal GS_B (1) according to the initial pulse signal VST_B (1) that time schedule controller 20 is produced, and displacement temporary storage unit SR_B (2)～SR_B (N) then exports GS_B (2)～GS_B (N) respectively according to initial pulse signal VST_B (2)～VST_B (N) that previous stage displacement temporary storage unit SR_B (1)～SR_B (N-1) is produced respectively.In gate driver circuit 10A ', displacement temporary storage unit SR_A ' (1) exports gate drive signal GS_A (1) according to the initial pulse signal VST_A ' (1) that time schedule controller 20 is produced, and initial pulse signal VST_A ' (2)～VST_A ' that displacement temporary storage unit SR_A ' (2)～SR_A ' (N) then (N-1) is produced according to previous stage displacement temporary storage unit SR_A ' (1)～SR_A ' respectively (N) exports gate drive signal GS_A (2)～GS_A (N) respectively.In gate driver circuit 10B ', displacement temporary storage unit SR_B ' (1) exports gate drive signal GS_B (1) according to the initial pulse signal VST_B ' (1) that time schedule controller 20 is produced, and initial pulse signal VST_B ' (2)～VST_B ' that displacement temporary storage unit SR_B ' (2)～SR_B ' (N) then (N-1) is produced according to previous stage displacement temporary storage unit SR_B ' (1)～SR_B ' respectively (N) exports GS_B (2)～GS_B (N) respectively.In the liquid crystal indicator 600 in the present invention, gate driver circuit 10A/10B and gate driver circuit 10A '/10B ' can the alternately opening and closing according to different pictures, and the cycle of alternation switch can be one or more pictures.Suppose in a plurality of pictures between the two adjacent picture F (N) and F (N+1) for switching the time point of gate driver circuit 10A/10B and gate driver circuit 10A '/10B ', this moment initial pulse signal VST_A (1)～VST_A (N), VST_B (1)～VST_B (N), VST_A ' (1)～VST_A ' (N) and VST_B ' (1)～VST_B ' sequential chart (N) as shown in figure 11.
The present invention utilizes many group gate driver circuits to come the driving grid line in the mode that timesharing starts, and can reduce the grid voltage stress of thin film transistor (TFT) in the displacement temporary storage unit, therefore can increase the term of life and the fiduciary level of LCD.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (18)
1. liquid crystal indicator comprises:
The viewing area which is provided with N bar gate line parallel to each other, and wherein N is a positive integer;
First non-display area and second non-display area lay respectively at two subtends of this viewing area;
First driving circuit, it operates according to first group of control signal, this first driving circuit is located in this first non-display area and is comprised first displacement temporary storage unit of N level serial connection, wherein a n level first displacement temporary storage unit is used for driving in this N bar gate line a corresponding n bar gate line showing first picture in a plurality of pictures in this N level first displacement temporary storage unit, and n is the positive integer that is not more than N; And
Second driving circuit, it operates and comprises second displacement temporary storage unit of N level serial connection according to second group of control signal, wherein a n level second displacement temporary storage unit is used for driving this n bar gate line to show second picture that is connected in these a plurality of pictures behind this first picture in this N level second displacement temporary storage unit.
2. liquid crystal indicator according to claim 1, wherein this second driving circuit is located in this first non-display area.
3. liquid crystal indicator according to claim 1, wherein this second driving circuit is located in this second non-display area.
4. liquid crystal indicator according to claim 1 also comprises control circuit, is used for producing this first group and second group of control signal.
5. liquid crystal indicator comprises:
The viewing area which is provided with many gate lines parallel to each other;
First non-display area and second non-display area lay respectively at two subtends of this viewing area;
First driving circuit is located in this first non-display area and first group of control signal of foundation operates, and this first driving circuit comprises first displacement temporary storage unit of multi-stage serial connection;
Second driving circuit is located in this second non-display area and second group of control signal of foundation operates, and this second driving circuit comprises second displacement temporary storage unit of multi-stage serial connection;
The 3rd driving circuit, it operates and comprises the 3rd displacement temporary storage unit of multi-stage serial connection according to the 3rd group of control signal; And
4 wheel driven moves circuit, and the 4th group of control signal of its foundation operates and comprise the 4th displacement temporary storage unit of multi-stage serial connection,
Wherein first displacement temporary storage unit of this multi-stage serial connection is used for driving corresponding odd number bar gate line in these many gate lines respectively, second displacement temporary storage unit of this multi-stage serial connection is used for driving corresponding even number bar gate line in these many gate lines respectively, to show first picture in a plurality of pictures
Wherein the 3rd displacement temporary storage unit of this multi-stage serial connection is used for driving this corresponding odd number bar gate line respectively, the 4th displacement temporary storage unit of this multi-stage serial connection is used for driving this corresponding even number bar gate line respectively, to show second picture that is connected in these a plurality of pictures behind this first picture.
6. liquid crystal indicator according to claim 5, wherein the 3rd driving circuit is located in this first non-display area, and the moving circuit of this 4 wheel driven is located in this second non-display area.
7. liquid crystal indicator according to claim 5, wherein the 3rd driving circuit is located in this second non-display area, and the moving circuit of this 4 wheel driven is located in this first non-display area.
8. liquid crystal indicator according to claim 5 also comprises control circuit, is used for producing this first group to the 4th group control signal.
9. liquid crystal indicator comprises:
The viewing area which is provided with N bar gate line parallel to each other, and wherein N is a positive integer;
First non-display area and second non-display area lay respectively at two subtends of this viewing area;
First driving circuit is located in this first non-display area and first group of control signal of foundation operates, and this first driving circuit comprises first displacement temporary storage unit of N level serial connection;
Second driving circuit is located in this second non-display area and second group of control signal of foundation operates, and this second driving circuit comprises second displacement temporary storage unit of N level serial connection;
The 3rd driving circuit is located in this first non-display area and the 3rd group of control signal of foundation operates, and the 3rd driving circuit comprises the 3rd displacement temporary storage unit of N level serial connection; And
4 wheel driven moves circuit, is located in this second non-display area and according to the 4th group of control signal to operate, and the moving circuit of this 4 wheel driven comprises the 4th displacement temporary storage unit of N level serial connection,
Wherein first displacement temporary storage unit of this N level serial connection is used for driving corresponding gate line in this N bar gate line respectively, and second displacement temporary storage unit of this N level serial connection is used for driving corresponding this N bar gate line respectively, showing first picture in a plurality of pictures,
Wherein the 3rd displacement temporary storage unit of this N level serial connection is used for driving corresponding this N bar gate line respectively, the 4th displacement temporary storage unit of this N level serial connection is used for driving corresponding this N bar gate line respectively, to show second picture that is connected in these a plurality of pictures behind this first picture.
10. liquid crystal indicator according to claim 9 also comprises control circuit, is used for producing this first group to the 4th group control signal.
11. a liquid crystal indicator comprises:
The viewing area which is provided with many gate lines parallel to each other;
First non-display area and second non-display area lay respectively at two subtends of this viewing area;
First driving circuit is located in this first non-display area and first group of control signal of foundation operates, and this first driving circuit comprises first displacement temporary storage unit of multi-stage serial connection;
Second driving circuit is located in this first non-display area and second group of control signal of foundation operates, and this second driving circuit comprises second displacement temporary storage unit of multi-stage serial connection;
The 3rd driving circuit is located in this second non-display area and the 3rd group of control signal of foundation operates, and the 3rd driving circuit comprises the 3rd displacement temporary storage unit of multi-stage serial connection; And
4 wheel driven moves circuit, is located in this second non-display area and according to the 4th group of control signal to operate, and the moving circuit of this 4 wheel driven comprises the 4th displacement temporary storage unit of multi-stage serial connection,
Wherein first displacement temporary storage unit of this multi-stage serial connection is used for driving corresponding odd number bar gate line in these many gate lines respectively, second displacement temporary storage unit of this multi-stage serial connection is used for driving corresponding even number bar gate line in these many gate lines respectively, to show first picture in a plurality of pictures
Wherein the 3rd displacement temporary storage unit of this multi-stage serial connection is used for driving this corresponding odd number bar gate line respectively, the 4th displacement temporary storage unit of this multi-stage serial connection is used for driving this corresponding even number bar gate line respectively, to show second picture that is connected in these a plurality of pictures behind this first picture.
12. liquid crystal indicator according to claim 11 also comprises control circuit, is used for producing this first group to the 4th group control signal.
13. the driving method of a liquid crystal indicator comprises:
Drive a gate line to show first picture in a plurality of pictures with first driving circuit; And
Close this first driving circuit and drive this gate line to show second picture that is connected in these a plurality of pictures behind this first picture with second driving circuit.
14. driving method according to claim 13 also comprises:
Drive this gate line to show M adjacent first picture in these a plurality of pictures with this first driving circuit; And
Close this first driving circuit and drive this gate line to show N adjacent second picture that is connected in these a plurality of pictures behind this M adjacent first picture with this second driving circuit, wherein M and N are positive integer.
15. driving method according to claim 13, wherein the value of M and N is identical.
16. driving method according to claim 13, wherein this first and second driving circuit drives this gate line to show this first and second picture respectively from the same side of this gate line.
17. driving method according to claim 13, wherein this first driving circuit drives this gate line showing this first picture from first side of this gate line, and this second driving circuit drives this gate line to show this second picture from second side of this gate line.
18. driving method according to claim 13, wherein this first driving circuit drives this gate line showing this first picture from the both sides of this gate line, and this second driving circuit drives this gate line to show this second picture from the both sides of this gate line.
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| CN2009101797833A CN101673526B (en) | 2009-10-19 | 2009-10-19 | Liquid crystal display device and related drive method |
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| CN2009101797833A CN101673526B (en) | 2009-10-19 | 2009-10-19 | Liquid crystal display device and related drive method |
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| CN107516505B (en) * | 2017-10-19 | 2021-01-15 | 京东方科技集团股份有限公司 | Shifting register unit and driving method thereof, grid driving circuit and display panel |
| US11158228B1 (en) | 2020-04-20 | 2021-10-26 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display driving circuit and display device |
| CN111445828A (en) * | 2020-04-20 | 2020-07-24 | 深圳市华星光电半导体显示技术有限公司 | Display driving circuit and display device |
| CN111613182A (en) * | 2020-05-25 | 2020-09-01 | 武汉华星光电半导体显示技术有限公司 | Display panel, driving method thereof and electronic equipment |
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