CN101101735B - Liquid-crystal display device and excess driving method - Google Patents
Liquid-crystal display device and excess driving method Download PDFInfo
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- CN101101735B CN101101735B CN200610105488XA CN200610105488A CN101101735B CN 101101735 B CN101101735 B CN 101101735B CN 200610105488X A CN200610105488X A CN 200610105488XA CN 200610105488 A CN200610105488 A CN 200610105488A CN 101101735 B CN101101735 B CN 101101735B
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Abstract
A liquid crystal display device consists of a liquid crystal panel, a temperature sensor, a memory and a timing controller. The temperature sensor is used to sense the temperature of the liquid crystal. The memory is used to store a reference over driving inquiry table, a first over driving inquiry table and a second over driving inquiry table. The reference over driving inquiry table and the first over driving inquiry table are preloaded from the memory into the timing controller, and a first over driving pixel value is output. When the temperature is higher than the preset value, the first over driving inquiry table in the timing controller is deleted and the second over driving inquiry table is loaded from the memory. According to the reference over driving inquiry table and the second over driving inquiry table, the second over driving pixel value is output.
Description
Technical field
The present invention is a kind of liquid crystal indicator of relevant what and excess driving method thereof, and particularly relevant a kind of tool of what excessively drives the liquid crystal indicator and the excess driving method thereof of function.
Background technology
Austrian zoophytologist F.Reinitzer in 1888 finds liquid crystal so far from the Christian era, and liquid crystal is widely used in the work and rest of people's daily life gradually, for example is digital still camera, LCD, liquid crystal display television etc.Reaction velocity by the what liquid crystal molecule is slower, and general system accelerates the reaction velocity of liquid crystal molecule with excessive type of drive (Over Driving).
Please be simultaneously with reference to 1A figure, 1B figure and 1C figure, it illustrates the calcspar into traditional liquid crystal indicator.Tradition liquid crystal indicator 10 comprises storer 110, temperature inductor 120, time schedule controller 130 and liquid crystal panel 140.Temperature inductor 120 is in order to the temperature of sensing liquid crystal panel 140.Excessively drive look-up table and there is the m group in the storer 110, it is respectively excessive driving look-up table LUTa1～excessively drive look-up table LUTm, each group excessively drives look-up table system and is respectively under the different temperatures, drive in image time of liquid crystal panel 140 whats, reach the required excessive driving pixel value of each predetermined luminance, for example excessively driving look-up table LUTa1 is temperature t 1 time, makes liquid crystal panel 140 reach the required excessive driving pixel value of its predetermined luminance; And excessively drive look-up table LUTa2 is temperature t 2 times, makes liquid crystal panel 140 reach the required excessive driving pixel value of its predetermined luminance.
Tradition liquid crystal indicator 10 whats start Hou, in storer 110, be written into excessive driving look-up table LUTa1 in advance to time schedule controller 130, if the temperature of liquid crystal panel 140 is t1, time schedule controller 130 promptly drives liquid crystal panel 140 (shown in 1A figure) according to the pixel value that excessively drives that excessively drives among the look-up table LUTa1.
When the temperature of liquid crystal panel 140 changed to temperature t 2 by temperature t 1, time schedule controller 130 was that correspondence removes excessive driving look-up table LUTa1 (shown in 1B figure).Time schedule controller 130 whats remove the excessive driving look-up table LUTa1 Hou that finishes, be written into the excessively driving look-up table LUTa2 of corresponding temperature t2 again, time schedule controller 130 needs what excessively to drive look-up table LUTa2 and is written into Hou fully, could excessively drive pixel value according to excessively driving look-up table LUTa2 output, to drive liquid crystal panel 140 (shown in 1C figure).
Yet, when excessive driving look-up table LUTa1 removes Hou, and before excessively driving look-up table LUTa2 and not being written into fully as yet, time schedule controller 130 can't drive liquid crystal panel 140 (shown in 1B figure) according to the pixel value that excessively drives among the excessive driving look-up table LUTa2, make conventional display device 10 can't bring into play original excessive driving function, excessively drive the intersegmental break time that function is suspended and form, cause the discontinuous of picture, and then influence the picture quality of traditional liquid crystal indicator 10.
In addition, in the tradition liquid crystal indicator each excessively drives look-up table and needs all excessive pixel values that drive of independent complete record, therefore will occupy the storage space of suitable capacity, make in the displacement time schedule controller excessively drive look-up table the time, will expend the quite long access time.
Summary of the invention
Have the prison what this, purpose of the present invention is exactly at liquid crystal indicator that provides a kind of tool excessively to drive function and excess driving method thereof.By using benchmark excessively to drive look-up table and the sub excessively driving look-up table that excessively drives look-up table replacement tradition, to improve the picture quality of liquid crystal indicator.
According to first purpose of the present invention, a kind of driving circuit is proposed.Driving circuit is in order to drive liquid crystal panel, and driving circuit comprises storer, temperature inductor and time schedule controller.Temperature inductor is in order to the temperature of sensing liquid crystal panel.Benchmark excessively drives look-up table, first son excessively drives look-up table and second son excessively drives look-up table and storer is in order to store.Be written into from storer in advance that benchmark excessively drives look-up table and first son excessively drives look-up table to time schedule controller, and export first according to this and excessively drive pixel value.When the high what predetermined temperature value of temperature, first son that removes time schedule controller excessively drives look-up table, and be written into second son from storer and excessively drive look-up table, right Hou benchmark excessively drives look-up table and second son and excessively drives look-up table and export second and excessively drive pixel value.
According to second purpose of the present invention, a kind of liquid crystal indicator is proposed.Liquid crystal indicator comprises liquid crystal panel, storer, temperature inductor and time schedule controller.Temperature inductor is in order to the temperature of sensing liquid crystal panel.Benchmark excessively drives look-up table, first son excessively drives look-up table and second son excessively drives look-up table and storer is in order to store.Be written into from storer in advance that benchmark excessively drives look-up table and first son excessively drives look-up table to time schedule controller, and export first according to this and excessively drive pixel value.When the high what predetermined temperature value of temperature, first son that removes time schedule controller excessively drives look-up table, and be written into second son from storer and excessively drive look-up table, right Hou benchmark excessively drives look-up table and second son and excessively drives look-up table and export second and excessively drive pixel value.
According to the 3rd purpose of the present invention, a kind of excess driving method is proposed.Excess driving method what one liquid crystal indicator, liquid crystal indicator comprises liquid crystal panel, storer and time schedule controller, excess driving method comprises the steps: at first, be written into from storer in advance that benchmark excessively drives look-up table and first son excessively drives look-up table to time schedule controller, and export first according to this and excessively drive pixel value.Now, the temperature of sensing liquid crystal panel.With work, during the high what predetermined temperature value of what temperature, first son that removes time schedule controller excessively drives look-up table, and is written into second son from storer and excessively drives look-up table.Hou, benchmark excessively drive look-up table and second son and excessively drive look-up table and export second and excessively drive pixel value.
According to the 4th purpose of the present invention, a kind of driving circuit is proposed.Driving circuit is in order to drive a liquid crystal panel, and driving circuit comprises temperature inductor, storer and time schedule controller.The temperature of this liquid crystal panel of temperature inductor sensing, and export an induced voltage according to this.Benchmark excessively drives look-up table to storer, first son excessively drives look-up table and second son excessively drives look-up table in order to store.Time schedule controller is written into benchmark from storer in advance and excessively drives look-up table, first son excessively the driving look-up table and the second sub excessive look-up table that drives, and excessively drives look-up table, the first son excessive driving look-up table and second sub look-up table and the induced voltage of excessively driving to export excessive driving pixel value according to benchmark.
For the present invention's above-mentioned purpose, special little and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
1A, 1B, 1C figure illustrate the calcspar into traditional liquid crystal indicator.
2A, 2B, 2C figure illustrate the calcspar according to a kind of liquid crystal indicator of the present invention one first embodiment.
3A, 3B, 3C figure illustrate the calcspar according to a kind of liquid crystal indicator of the present invention one second embodiment.
The 4th figure illustrates the process flow diagram into a kind of excess driving method.
The 5th figure illustrates and is the calcspar according to a kind of liquid crystal indicator of the present invention 1 the 3rd embodiment.
6A figure and 6B figure illustrate and are the calcspar according to a kind of liquid crystal indicator of the present invention 1 the 4th embodiment.
Embodiment
Sequence controller is that foundation one benchmark excessively drives look-up table and at least one son excessively drives look-up table drives liquid crystal panel with decision excessively driving pixel value in the following embodiment.And what excessively drives in the replacement process of look-up table, benchmark excessively drives look-up table output and excessively drives pixel value, to improve traditional liquid crystal indicator because of the displacement that excessively drives look-up table, excessively drive the intersegmental break time that function is suspended and form, make liquid crystal indicator that better picture performance can be arranged.
First embodiment
Please be simultaneously with reference to 2A figure, 2B and 2C figure, it illustrates and is the calcspar according to a kind of liquid crystal indicator of the present invention one first embodiment.Liquid crystal indicator 20 comprises driving circuit 200 and liquid crystal panel 240.Driving circuit 200 is in order to drive liquid crystal panel 240 display frames, and driving circuit 200 comprises temperature inductor 220, storer 210 and time schedule controller 230.Temperature inductor 220 is in order to the temperature of sensing liquid crystal panel 240.And storer 210 is in order to storing a benchmark and excessively drive look-up table LUTb and plural height excessively drives look-up table LUTc1～LUTcn, and son excessively drives the preset temperature value of look-up table LUTc1～corresponding difference of LUTcn system.
As liquid crystal indicator 20 start Hous, driving circuit 200 is written in storer 210 in advance that benchmark excessively drives look-up table LUTb and son excessively drives look-up table LUTc1 to time schedule controller 230 (shown in 2A figure).Time schedule controller 230 is to receive a pixel information, and benchmark excessively drives look-up table LUTb and son excessively drives look-up table LUTG1 and exports excessive driving pixel value OD1, to drive liquid crystal panel 240 display frames.
When the high what predetermined temperature value of the temperature of liquid crystal panel 240, time schedule controller 230 removes son own and excessively drives look-up table LUTc1, and in storer 210, be written into son and excessively drive look-up table LUTc2 (shown in 2C figure), time schedule controller 230 benchmarks excessively drive look-up table LUTb and son excessively drives look-up table LUTc2 and exports excessive driving pixel value OD2, to drive liquid crystal panel 240 display frames.
Group excessively drives look-up table LUTc1 and removes Hou, and son is when excessively driving look-up table LUTc2 and not being written into time schedule controller 230 as yet (shown in 2B figure), time schedule controller 230 benchmarks excessively drive look-up table LUTb output and excessively drive pixel value OD3, to drive liquid crystal panel 240 display frames.Therefore can avoid causing excessive driving function to suspend, and influencing the picture quality of liquid crystal indicator 20 because there is not excessively driving look-up table in the time schedule controller 230.
The first above-mentioned embodiment excessively drives look-up table LUTc1 by the son that the benchmark that is written into one group of tool reference value in advance excessively drives look-up table LUTb and one group of tool off-set value, make time schedule controller 230 excessively drive in the process of look-up table at displacement son, the reference value that can be at least excessively drives look-up table LUTb according to benchmark drives liquid crystal panel 240.Avoiding in the time schedule controller 230 because of there not being excessive driving look-up table, and influence the picture quality of liquid crystal indicator 20.
Second embodiment
Please be simultaneously with reference to 3A figure, 3B figure and 3C figure, it illustrates and is the calcspar according to a kind of liquid crystal indicator of the present invention one second embodiment.Aforementioned liquid crystal indicator 20 excessively drives look-up table LUTc1 to time schedule controller 230 except that the son that the benchmark that can be written into one group of tool reference value in advance excessively drives look-up table LUTb and one group of tool off-set value, and the son that the benchmark that also can be written into one group of tool reference value in advance excessively drives look-up table LUTb and two groups of tool off-set values excessively drives look-up table to time schedule controller 230.
As liquid crystal indicator 20 start Hous, driving circuit 200 is written into benchmark in advance and drives excessively that look-up table LUTb, son excessively drive look-up table LUTc1 and son excessively drives look-up table LUTc2 to time schedule controller 230 (shown in 3A figure) in storer 210.Time schedule controller 230 benchmarks excessively drive look-up table LUTb, son and excessively drive look-up table LUTc1 and the excessive look-up table LUTc2 of driving of son and export excessive driving pixel value OD4, to drive liquid crystal panel 240 display frames.
When the high what predetermined temperature value of the temperature of liquid crystal panel 240, time schedule controller 230 removes son own and excessively drives look-up table LUTc1, and in storer 210, be written into son and excessively drive look-up table LUTc3 (shown in 3C figure), time schedule controller 230 benchmarks excessively drive look-up table LUTb, son and excessively drive look-up table LUTc2 and the excessive look-up table LUTc3 of driving of son and export excessive driving pixel value OD5, to drive liquid crystal panel 240 display frames.
Group excessively drives look-up table LUTc1 and removes Hou, and son is when excessively driving look-up table LUTc3 and not being written into time schedule controller 230 as yet, time schedule controller 230 benchmarks excessively drive look-up table LUTb and son excessively drives the excessive pixel value OD6 that drives of look-up table LUTc2 output, to drive liquid crystal panel 240 display frames.The pixel value OD3 that excessively drives that excessively drives among the pixel value OD6 and first embodiment compares, excessively drive pixel value OD6 and will excessively drive look-up table LUTb and the excessive driving of son look-up table LUTc2, and make that the picture performance of liquid crystal indicator 20 is better because of its benchmark.
Please refer to the 4th figure, it illustrates and is a kind of excess driving method.The excess driving method above-mentioned liquid crystal indicator 20 of what.Excess driving method comprises the steps: at first as described in the step 41, is written into from storer 210 in advance that benchmark excessively drives look-up table LUTb and son excessively drives look-up table LUTc1 to time schedule controller 230, and output according to this excessively drives pixel value OD1.Now is as described in the step 42, the temperature of sensing liquid crystal panel 240.As described in the step 43, during the high what predetermined temperature value of what temperature, the son that removes time schedule controller 230 excessively drives look-up table LUTc1 with work, and is written into son from storer 210 and excessively drives look-up table LUTc2.Hou is as described in the step 44, and benchmark excessively drives look-up table LUTb and son excessively drives look-up table LUTc2 and exports excessive driving pixel value OD2.
The 3rd embodiment
Please refer to the 5th figure, it illustrates and is the calcspar according to a kind of liquid crystal indicator of the present invention 1 the 3rd embodiment.In addition, temperature Hou of temperature inductor 220 sensing liquid crystal panels 240, to export an induced voltage Vt accordingly, time schedule controller 230 is also found out suitable excessively driving pixel value through a letter formula according to the size of induced voltage Vt, and the son that makes time schedule controller 230 not need to remove and be written into correspondence according to the temperature difference excessively drives look-up table.
Therefore, as LCD 20 start Hous, driving circuit 200 will be written into benchmark in advance and excessively drive look-up table LUTb, son and excessively drive look-up table LUTc1 and excessively drive look-up table LUTc2 to time schedule controller 230 with son in storer 210, and time schedule controller 230 benchmarks excessively drive look-up table LUTb, son and excessively drive look-up table LUTc1, son and excessively drive look-up table LUTc2 and induced voltage Vt and export excessive driving pixel value OD7.
When temperature change, time schedule controller 230 son excessively can not driven look-up table LUTc1 or the excessive look-up table LUTc2 that drives of son removes, can not be written into other new sons yet and excessively drive look-up table, but see through the correspondence change of induced voltage Vt size, calculate excessive driving pixel value OD7.
Furthermore, time schedule controller 230 is to see through a letter formula f (Vt) to export suitable excessively driving pixel value OD7, and f (Vt) for example is a linear interpolation formula or a polynomial expression, and excessively drives pixel value OD7=b+f (Vt) * c1+f (Vt) * c2.Wherein, b is that benchmark excessively drives one of look-up table LUTb reference value, and c1 and c2 are respectively son excessively driving look-up table LUTc1 and the excessive off-set value that drives among the look-up table LUTc2 of son.
The 4th embodiment
Please be simultaneously with reference to 6A figure and 6B figure, it illustrates and is the calcspar according to a kind of liquid crystal indicator of the present invention 1 the 4th embodiment.Compare what the 3rd embodiment and can not remove or be written into excessively driving look-up table of son with temperature change accordingly, the 4th embodiment is except that finding out the excessive driving pixel value according to an induced voltage Vt and a letter formula, simultaneously according to liquid crystal panel 240 temperature height, the son that is written into or removes correspondence excessively drives look-up table to time schedule controller 230, makes LCD 20 have splendid picture performance.
Therefore, as LCD 20 start Hous, driving circuit 200 is written into benchmark in advance and excessively drives look-up table LUTb, son and excessively drive look-up table LUTc1, son and excessively drive look-up table LUTc2 and excessively drive look-up table LUTc3 to time schedule controller 230 with son in storer 210, and time schedule controller 230 excessively drives look-up table LUTb, son according to son and excessively drives look-up table LUTc1 and excessively drive look-up table LUTc2 and induced voltage Vt and export excessive driving pixel value OD8 (shown in 6A figure) with son.
When high what predetermined temperature value Hou of temperature, time schedule controller 230 removes son and excessively drives look-up table LUTc1, and is written into the excessive look-up table LUTc4 that drives of son.Excessively do not drive look-up table LUTc4 to the time schedule controller 230 being written into son as yet, time schedule controller 230 is that benchmark excessively drives look-up table LUTb, son and excessively drives look-up table LUTc2, son and excessively drive the induced voltage Vt of look-up table LUTc3 and temperature variation Hou and export excessive driving pixel value OD9 (shown in 6B figure).
Furthermore, time schedule controller 230 is to see through a letter formula f ' (Vt) to export suitable excessively driving pixel value OD8, f ' for example is a linear interpolation formula or a polynomial expression (Vt), and before the not high what predetermined temperature value of temperature, its excessively drive pixel value OD8=b+f ' (Vt) * c1+f ' (Vt) * c2.If high what predetermined temperature value of temperature and son excessively drive look-up table LUTc4 be not written into as yet before, then excessively drive pixel value OD9=b+f ' (Vt) * c2+f ' (Vt) * c3.Wherein, b is that benchmark excessively drives one of look-up table LUTb reference value, and excessively driving look-up table LUTc1, son excessively drive look-up table LUTc2 and the excessive off-set value that drives among the look-up table LUTc3 of son and c1, c2 and c3 are respectively son.
A kind of tool that the above embodiment of the present invention disclosed excessively drives liquid crystal indicator, driving circuit and the excess driving method thereof of function.A benchmark excessively drives look-up table and at least one son excessively drives look-up table to time schedule controller by being written in advance, and output according to this drives the excessively driving pixel value of liquid crystal panel.Make the present invention will have following advantage:
First advantage is to improve picture quality, when traditional liquid crystal indicator what displacement excessively drives look-up table, will excessively not drive look-up table because of having in the time schedule controller, and the intersegmental break time of causing excessive driving function to suspend.The present invention's liquid crystal indicator what excessively drives look-up table LUTc1 and removes Hou, and son is when excessively driving look-up table LUTc2 and not being written into time schedule controller as yet, benchmark is excessively driven look-up table LUTb output excessively drive pixel value, to drive liquid crystal panel display frame.The picture quality of avoiding excessively driving the function time-out and influencing liquid crystal indicator
Second advantage of the present invention reduces the excessively occupied memory span of driving look-up table at what.See through benchmark and excessively drive look-up table and the excessive excessively driving look-up table of look-up table replacement tradition that drives of son, will make its occupied memory span reduce relatively.
The 3rd advantage of the present invention reduces the access time that excessively drives look-up table at what.It is littler than the excessively driving look-up table of tradition excessively to drive the required memory span that occupies of look-up table by what, and therefore, liquid crystal indicator only needs the short access time, can be written into the excessive look-up table that drives of son from storer.
In sum; though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the invention; when can doing various changes and retouching, so the present invention's protection domain is as the criterion when looking the attached claim person of defining of Hou.
[main element symbol description]
10: traditional liquid crystal indicator
20: the present invention's liquid crystal indicator
110,210: memory
120,220: temperature inductor
130,230: time schedule controller
140,240: liquid crystal panel
200: driving circuit
Claims (37)
1. driving circuit is in order to driving a liquid crystal panel, and this driving circuit comprises:
One storer is that a benchmark excessively drives look-up table, one first son excessively drives look-up table and one second son excessively drives look-up table in order to store;
Time schedule controller is to be written into this benchmark from this storer in advance excessively to drive look-up table and the excessive driving of this first son look-up table, and exports the one first excessive pixel value that drives according to this; And
One temperature inductor is in order to one of this liquid crystal panel of sensing temperature;
Wherein, when this temperature is higher than a predetermined temperature value, this first son that this time schedule controller removes itself excessively drives look-up table, and this storer is written into this second sub look-up table that excessively drives certainly, excessively drives look-up table and this second son excessive driving look-up table and export one second according to this benchmark then excessively to drive pixel value.
2. as the driving circuit as described in 1 of the claim the, wherein remove the excessive look-up table that drives of this first son of itself when this time schedule controller, and as yet not when this storer is written into this second son and excessively drives look-up table, excessively drive look-up table and export one the 3rd according to this benchmark and excessively drive pixel value.
3. as the driving circuit as described in 2 of the claims the, wherein this benchmark excessively drives look-up table system and has a reference value at least, excessively drives pixel value according to this reference value to export the 3rd.
4. as the driving circuit as described in 3 of the claims the, wherein this this temperature of temperature inductor sensing and corresponding output one induced voltage, this driving circuit excessively drives pixel value according to this reference value, this induced voltage and a letter formula to export the 3rd.
5. as the driving circuit as described in 4 of the claims the, wherein this letter formula is an interpolation letter formula.
6. as the driving circuit as described in 1 of the claim the, wherein this benchmark excessively drives look-up table system and has a reference value at least, and this first son excessively drives look-up table system and has an off-set value at least, and this time schedule controller first excessively drives pixel value according to this reference value and this off-set value to export this.
7. as the driving circuit as described in 6 of the claims the, wherein this this temperature of temperature inductor sensing and corresponding output one induced voltage, this driving circuit first excessively drives pixel value according to this reference value, this off-set value, this induced voltage and a letter formula to export this.
8. as the driving circuit as described in 7 of the claims the, wherein this letter formula is an interpolation letter formula.
9. as the driving circuit as described in 1 of the claim the, wherein this benchmark excessively drives look-up table system and has a reference value at least, and this second son excessively drives look-up table system and has an off-set value at least, second excessively drives pixel value according to this reference value and this off-set value to export this.
10. as the driving circuit as described in 9 of the claims the, wherein this this temperature of temperature inductor sensing and corresponding output one induced voltage, this driving circuit second excessively drives pixel value according to this reference value, this off-set value, this induced voltage and a letter formula to export this.
11. as the driving circuit as described in 10 of the claims the, wherein this letter formula is an interpolation letter formula.
12. a liquid crystal indicator comprises:
One liquid crystal panel;
One drive circuit comprises:
One storer is that a benchmark excessively drives look-up table, one first son excessively drives look-up table and one second son excessively drives look-up table in order to store;
Time schedule controller is to be written into this benchmark from this storer in advance excessively to drive look-up table and the excessive driving of this first son look-up table, and exports the one first excessive pixel value that drives according to this; And
One temperature inductor is in order to one of this liquid crystal panel of sensing temperature;
Wherein, when this temperature is higher than a predetermined temperature value, this first son that this time schedule controller removes itself excessively drives look-up table, and this storer is written into this second sub look-up table that excessively drives certainly, excessively drives look-up table and this second son excessive driving look-up table and export one second according to this benchmark then excessively to drive pixel value.
13. as the liquid crystal indicator as described in 12 of the claims the, wherein remove the excessive look-up table that drives of this first son of itself when this time schedule controller, and as yet not when this storer is written into this second son and excessively drives look-up table, excessively drive look-up table and export one the 3rd according to this benchmark and excessively drive pixel value.
14. as the liquid crystal indicator as described in 13 of the claims the, wherein this benchmark excessively drives look-up table system and has a reference value at least, excessively drives pixel value according to this reference value to export the 3rd.
15. as the liquid crystal indicator as described in 14 of the claims the, wherein this this temperature of temperature inductor sensing and corresponding output one induced voltage, this driving circuit excessively drives pixel value according to this reference value, this induced voltage and a letter formula to export the 3rd.
16. as the liquid crystal indicator as described in 15 of the claims the, wherein this letter formula is an interpolation letter formula.
17. as the liquid crystal indicator as described in 12 of the claims the, wherein this benchmark excessively drives look-up table system and has a reference value at least, and this first son excessively drives look-up table system and has an off-set value at least, first excessively drives pixel value according to this reference value and this off-set value to export this.
18. as the liquid crystal indicator as described in 17 of the claims the, wherein this this temperature of temperature inductor sensing and corresponding output one induced voltage, this driving circuit first excessively drives pixel value according to this reference value, this off-set value, this induced voltage and a letter formula to export this.
19. as the liquid crystal indicator as described in 18 of the claims the, wherein this letter formula is an interpolation letter formula.
20. as the liquid crystal indicator as described in 12 of the claims the, wherein this benchmark excessively drives look-up table system and has a reference value at least, and this second son excessively drives look-up table system and has an off-set value at least, second excessively drives pixel value according to this reference value and this off-set value to export this.
21. as the liquid crystal indicator as described in 20 of the claims the, wherein this this temperature of temperature inductor sensing and corresponding output one induced voltage, this driving circuit second excessively drives pixel value according to this reference value, this off-set value, this induced voltage and a letter formula to export this.
22. as the liquid crystal indicator as described in 21 of the claims the, wherein this letter formula is an interpolation letter formula.
23. a driving circuit is in order to driving a liquid crystal panel, this driving circuit comprises:
One temperature inductor is in order to one of this liquid crystal panel of sensing temperature, and exports an induced voltage according to this;
One storer is that a benchmark excessively drives look-up table, one first son excessively drives look-up table and one second son excessively drives look-up table in order to store; And
Time schedule controller, system is written into this benchmark from this storer in advance and excessively drives excessively driving look-up table of look-up table, this first sub excessive driving look-up table and this second son, and excessively drives look-up table, this first sub excessive look-up table and this second son excessive driving look-up table and this induced voltage of driving to export an excessive pixel value that drives according to this benchmark.
24. as the driving circuit as described in 23 of the claims the, wherein this benchmark excessively drives look-up table system and has a reference value at least, and this first son excessively drives look-up table and the excessive look-up table system that drives of this second son has an off-set value respectively at least, should excessively drive pixel value according to this reference value, this off-set value and this induced voltage with output.
25. as the driving circuit as described in 24 of the claims the, wherein this driving circuit should excessively drive pixel value according to this reference value, this off-set value, this induced voltage and a letter formula with output.
26. as the driving circuit as described in 25 of the claims the, wherein this letter formula is an interpolation letter formula.
27. an excess driving method is to be used for a liquid crystal indicator, this liquid crystal indicator comprises a liquid crystal panel, a storer and time schedule controller, and this excess driving method comprises:
Be written into from this storer in advance that a benchmark excessively drives look-up table and one first son excessively drives look-up table to this time schedule controller, and export one first according to this and excessively drive pixel value;
One of this liquid crystal panel of sensing temperature;
When this temperature was higher than a predetermined temperature value, this first son that removes this time schedule controller excessively drove look-up table, and this storer is written into the excessive look-up table that drives of one second son certainly; And
Excessively drive look-up table and this second son excessive driving look-up table and export the one second excessive pixel value that drives according to this benchmark.
28. as the excess driving method as described in 27 of the claims the, wherein remove the excessive look-up table that drives of this first son of itself when this time schedule controller, and as yet not when this storer is written into this second son and excessively drives look-up table, excessively drive look-up table and export one the 3rd according to this benchmark and excessively drive pixel value.
29. as the excess driving method as described in 28 of the claims the, wherein this benchmark excessively drives look-up table system and has a reference value at least, excessively drives pixel value according to this reference value and this off-set value to export the 3rd.
30. as the excess driving method as described in 29 of the claims the, wherein this this temperature of temperature inductor sensing and corresponding output one induced voltage excessively drive pixel value according to this reference value, this induced voltage and a letter formula to export the 3rd.
31. as the excess driving method as described in 30 of the claims the, wherein this letter formula is an interpolation letter formula.
32. as the excess driving method as described in 27 of the claims the, wherein this benchmark excessively drives look-up table system and has a reference value at least, and this first son excessively drives look-up table system and has an off-set value at least, and this time schedule controller first excessively drives pixel value according to this reference value and this off-set value to export this.
33. as the excess driving method as described in 32 of the claims the, wherein this this temperature of temperature inductor sensing and corresponding output one induced voltage first excessively drive pixel value according to this reference value, this off-set value, this induced voltage and a letter formula to export this.
34. as the excess driving method as described in 33 of the claims the, wherein this letter formula is an interpolation letter formula.
35. as the excess driving method as described in 27 of the claims the, wherein this benchmark excessively drives look-up table system and has a reference value at least, and this second son excessively drives look-up table system and has an off-set value at least, second excessively drives pixel value according to this reference value and this off-set value to export this.
36. as the excess driving method as described in 35 of the claims the, wherein this this temperature of temperature inductor sensing and corresponding output one induced voltage second excessively drive pixel value according to this reference value, this off-set value, this induced voltage and a letter formula to export this.
37. as the excess driving method as described in 36 of the claims the, wherein this letter formula is an interpolation letter formula.
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| CN106098005A (en) * | 2016-08-11 | 2016-11-09 | 深圳市华星光电技术有限公司 | Display floater and overdrive circuitry thereof |
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| CN1582464A (en) * | 2001-11-09 | 2005-02-16 | 夏普株式会社 | Liquid crystal display |
| EP1528534A1 (en) * | 2003-10-30 | 2005-05-04 | Vastview Technology Inc. | Driving circuit of a liquid crystal display and driving method thereof |
| EP1538595A1 (en) * | 2003-12-01 | 2005-06-08 | Vastview Technology Inc. | Driving circuit of a liquid crystal display and driving method thereof |
| CN1703650A (en) * | 2002-10-10 | 2005-11-30 | 三洋电机株式会社 | Liquid crystal panel drive device |
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|---|---|---|---|---|
| CN1582464A (en) * | 2001-11-09 | 2005-02-16 | 夏普株式会社 | Liquid crystal display |
| CN1703650A (en) * | 2002-10-10 | 2005-11-30 | 三洋电机株式会社 | Liquid crystal panel drive device |
| EP1528534A1 (en) * | 2003-10-30 | 2005-05-04 | Vastview Technology Inc. | Driving circuit of a liquid crystal display and driving method thereof |
| EP1538595A1 (en) * | 2003-12-01 | 2005-06-08 | Vastview Technology Inc. | Driving circuit of a liquid crystal display and driving method thereof |
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| CI01 | Correction of invention patent gazette |
Correction item: Inventor Correct: Lin Hongyu|Xu Yinghao| Huang Jiting False: Lin Hongyu|Xu Yinghao|Huang Jiyan Number: 30 Volume: 27 |
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Correction item: Third inventor Correct: Huang Jiting False: Huang Jiyan Number: 30 Page: The title page Volume: 27 |
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Free format text: CORRECT: INVENTOR; FROM: LIN HONGYU; XU YINGHAO, HUANG JIYAN TO: LIN HONGYU; XU YINGHAO, HUANG JITING |