CN1991953A - Liquid crystal reaction time adjusting device - Google Patents
Liquid crystal reaction time adjusting device Download PDFInfo
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- CN1991953A CN1991953A CN 200510135271 CN200510135271A CN1991953A CN 1991953 A CN1991953 A CN 1991953A CN 200510135271 CN200510135271 CN 200510135271 CN 200510135271 A CN200510135271 A CN 200510135271A CN 1991953 A CN1991953 A CN 1991953A
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- liquid crystal
- reaction time
- crystal reaction
- adjusting device
- picture frame
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention relates to a liquid crystal reaction time adjusting device that receives a series of image frame that comprises: a memory to store the pixel data of the image frame; a acceleration drive value generating unit which generates a corresponding acceleration drive value based on the pixel data of the former image frame and a current pixel data of the image frame; a adjusting unit to adjust the acceleration drive value. The liquid crystal reaction time adjusting device can make user adjust the liquid crystal reaction time value as his will, the display can fulfill different demand of user.
Description
Technical field
The present invention relates to a kind of liquid crystal accelerator, particularly relate to a kind of liquid crystal reaction time adjusting device.
Background technology
Liquid crystal indicator is in light weight because of it, power consumption is few, low radiation, advantage such as do not take up space, and has been widely used on the electronic product miscellaneous in recent years.
The pixel of liquid crystal indicator is arranged to rectangularly constitute by liquid crystal molecule in length and breadth, each pixel is equipped with the electrode to liquid crystal applied voltages, use the electrode pair liquid crystal applied voltages of each pixel can change the orientation of liquid crystal, and the orientation of liquid crystal has determined to see through the light quantity of liquid crystal, so can realize the purpose of display image by the orientation of control liquid crystal.
Please refer to Fig. 1, be the sequential chart of pixel voltage in the available liquid crystal display device and light penetration rate, wherein pixel voltage indicates with solid line, and the light penetration rate indicates with dotted line L.When the voltage of a pixel in the liquid crystal indicator switches to V2 by V1, because the characteristic of liquid crystal molecule has a time delay, make its liquid crystal molecule can't be at a picture frame cycle (T) intrinsic deflection to predetermined direction reaching predetermined light penetration rate, yet such delay but can make liquid crystal indicator the phenomenon of ghost occur.In order to improve this phenomenon, the method for quickening liquid crystal drive is used on the liquid crystal indicator, please refer to Fig. 2, and voltage and its light of its pixel were worn the sequential chart of rate when Fig. 2 quickened LCD drive method for existing use.When the pixel voltage in the liquid crystal indicator switches to V2 by V1, accelerate the liquid crystal molecule reverse speed by being increased to voltage V3, make liquid crystal molecule in a picture frame cycle (T), can deflect to predetermined direction, and then reach predetermined light penetration rate.And the speed of liquid crystal molecule reverse speed can be represented by the reaction time of liquid crystal indicator, and the liquid crystal molecule reverse speed is fast more, represented the required reaction time of its switching state shorter.
Please refer to Fig. 3, be the synoptic diagram of existing liquid crystal accelerator, this device 100 has an internal memory 10, in order to the pixel data of memory image picture frame, as existing picture frame G
nAfter the input, quicken motivation value generation unit 12 by more existing picture frame G
nPixel data be stored in last picture frame G in the internal memory
N-1Pixel data and produce suitable acceleration motivation value, this acceleration motivation value is and reaches the voltage change of accelerating the liquid crystal molecule reverse speed, utilizes a synthesis unit that this is quickened motivation value then and acts on existing picture frame G
nUpward get a picture frame G
n', picture frame G
n' then input in the liquid crystal panel module 18 with display image.This liquid crystal accelerator utilization is accelerated the liquid crystal molecule reverse speed and is reached the purpose that shortens the liquid crystal reaction time.
Display used in different situations following times, everyly be set with different demands for it, for example be used for display photos, play games, see film etc., in its brightness, color, reaction time etc. different requirements is arranged all, and each user also there is different requirement for the brightness of display, color, reaction time etc.Therefore every performance that can allow the user comply with its fancy setting display is very necessary.The liquid crystal accelerator has shortened the reaction time of liquid crystal, and there is to a certain degree influence in the reaction time of liquid crystal for image quality, but in the existing liquid crystal accelerator, it quickens motivation value is default value, can't allow the user adjust with the need, promptly the user can't adjust the reaction time of liquid crystal.
Summary of the invention
Technical problem underlying to be solved by this invention is to provide a kind of user of allowing to adjust the liquid crystal reaction time adjusting device in liquid crystal reaction time with its inclination.
Another technical matters to be solved by this invention is to provide the OSD of a kind of user of allowing in liquid crystal indicator (On Screen Display) to adjust the device in liquid crystal reaction time.
For achieving the above object, the invention provides a kind of liquid crystal reaction time adjusting device, receive a succession of image picture frame, it comprises: an internal memory, in order to the pixel data of memory image picture frame; One quickens the motivation value generation unit, according to corresponding pixel data in the pixel data of the last picture frame that is stored in the image picture frame in the internal memory and the existing picture frame, and then produces the acceleration motivation value of a correspondence; And an adjustment unit quickens motivation value in order to adjust.
Described liquid crystal reaction time adjusting device also can comprise a synthesis unit, in order to adjusted acceleration motivation value and existing picture frame are synthesized an output image picture frame.
Described acceleration motivation value generation unit is a lookup table, can utilize this lookup table to find a predetermined acceleration motivation value according to last picture frame and existing picture frame.
Described liquid crystal reaction time adjusting device is installed in the liquid crystal indicator, and the OSD by liquid crystal indicator sets adjustment unit to quickening the adjustment of motivation value.
The present invention also proposes a kind of picture menu device of adjusting the liquid crystal reaction time, is located on the liquid crystal indicator, has color, brightness, reduced parameter adjustment menu, can adjust the liquid crystal reaction time of this liquid crystal indicator by this picture menu device.
The present invention can allow the user adjust the liquid crystal reaction time with its inclination, and can allow the user adjust the liquid crystal reaction time in the OSD of liquid crystal indicator (On Screen Display).
Below with reference to embodiment and description of drawings, technology contents of the present invention, characteristics and the effect of bringing into play are done more detailed elaboration, enable more deep understanding.
Description of drawings
Fig. 1 is the sequential chart of pixel voltage and light penetration rate in the available liquid crystal display device;
Fig. 2 has the pixel voltage of liquid crystal indicator of liquid crystal accelerator and the sequential chart of light penetration rate;
Fig. 3 is existing liquid crystal accelerator block schematic diagram;
Fig. 4 is a liquid crystal reaction time adjusting device block schematic diagram of the present invention;
Fig. 5 is applied to the synoptic diagram of the OSD of a liquid crystal indicator for the present invention.
Wherein, Reference numeral:
100 liquid crystal accelerators, 10 internal memories
12 quicken motivation value generation unit 14 synthesis units
18 liquid crystal panel module, 200 liquid crystal accelerators
20 internal memories 22 quicken the motivation value generation unit
24 synthesis units, 26 adjustment units
28 liquid crystal panel module, 30 liquid crystal indicators
32 picture menus
Embodiment
In order to allow the user can adjust the liquid crystal reaction time of liquid crystal indicator according to hobby, the present invention proposes a liquid crystal reaction time adjusting device, sees also Fig. 4, is the block schematic diagram of an embodiment of liquid crystal reaction time adjusting device 200 of the present invention.As shown in Figure 4, this liquid crystal reaction time adjusting device 200 has an internal memory 20, an acceleration motivation value generation unit 22, an adjustment unit 26, reaches a synthesis unit 24.The picture signal that liquid crystal reaction time adjusting device 200 receives is a series of picture frame.At this, the picture frame that the present desire of display shows is called existing picture frame, and the previous picture frame of existing picture frame (being previous picture displayed) is called last picture frame.After a series of image picture frame inputed to liquid crystal reaction time adjusting device 200, the pixel data of picture frame can be stored in the internal memory 20, (was existing picture frame G after next picture frame input
n), the last picture frame G of internal memory stored
N-1Pixel data can be read into and quicken in the motivation value generation unit 22, and existing picture frame G
nPixel data store again in the internal memory 20.Quicken motivation value generation unit 22 and receive existing picture frame G
nAnd last picture frame G
N-1Pixel data after its difference relatively, and then produce one and quicken motivation value.This quickens motivation value and promptly is used for compensating the pixel voltage that puts on the liquid crystal panel, reverses with the acceleration liquid crystal to make it turn to predetermined direction in the given time, promptly reaches the purpose that shortens the liquid crystal reaction time.Quicken motivation value generation unit 22 and can be a default lookup table (look up table), utilize existing picture frame G
nAnd last picture frame G
N-1Pixel data table look-up and obtain a pre-designed acceleration motivation value.Adjustment unit 26 then is used for allowing the user adjust the size of quickening motivation value, and this size of quickening motivation value influences the speed that liquid crystal reverses, so can reach the purpose of adjusting the liquid crystal reaction time by adjusting this size of quickening motivation value.At last, utilize synthesis unit 24 that adjusted acceleration motivation value is acted on picture frame G again
nPixel data on and export a picture frame G
n', this synthesis unit 24 can be made of a totalizer.Picture frame G
n' via after the liquid crystal panel module demonstration, can obtain near G
nPicture, but reduce the generation of ghost.
In one embodiment of this invention, above-mentioned adjustment unit 26 can be a gain amplifier, and its gain to this acceleration motivation value can allow the user adjust its size, and its preferable yield value should be between 0 and 1.
In another embodiment of the present invention, above-mentioned adjustment unit 26 can be a multiplier, the adjusted value of user's input is multiplied by by exporting after the acceleration motivation value of quickening the generation of motivation value generation unit, and wherein, the adjusted value of user's input is preferably between 0 and 1.
And in another embodiment of the present invention, the function of above-mentioned adjustment unit 26 can be reached by software, and the user utilizes software to adjust the size of quickening motivation value, and then realizes adjusting the purpose in liquid crystal reaction time.
Liquid crystal reaction time adjusting device of the present invention can be installed in the liquid crystal indicator, and allow the user pass through the picture menu of liquid crystal indicator, adjust/set the adjustment size of adjustment unit to this acceleration motivation value, this picture menu is commonly referred to as OSD (On Screen Display).See also Fig. 5, it utilizes the OSD of liquid crystal indicator for one embodiment of the invention and adjusts the synoptic diagram in liquid crystal reaction time, as shown in the figure, liquid crystal indicator 30 has a picture menu (OSD) 32, and this picture menu 32 has the options such as color, contrast, brightness and liquid crystal reaction time of adjusting this liquid crystal indicator.The user can utilize this picture menu 32 to adjust every display setting of liquid crystal indicator, comprises the reaction time of liquid crystal.
In a preferred embodiment, can be in the OSD32 of liquid crystal indicator 30, default several display modes, these display modes are done optimal setting at different demonstration purposes and to color, brightness, contrast, the liquid crystal reaction time of display, for example at display photos, film or the default display mode of the purposes such as (Game) of playing games set, thus, the user can set every setting value of display apace according to its demand.
Liquid crystal reaction time adjusting device of the present invention allows the user can adjust the reaction time of liquid crystal according to its inclination, and by this function, display can satisfy the different demands of different users to display effect.
Above-mentioned only is preferred embodiment of the present invention, when can not be in order to limit the scope of the invention.All equivalences of making according to claim of the present invention change and revise, and still do not lose main idea of the present invention place, do not break away from the spirit and scope of the present invention, should be considered as further embodiment of the present invention.
Claims (15)
1, a kind of liquid crystal reaction time adjusting device receives a succession of image picture frame, it is characterized in that, comprising:
One internal memory is in order to store the pixel data of this image picture frame;
One quickens the motivation value generation unit, according to corresponding pixel data in the pixel data that is stored in the last picture frame of this image picture frame in this internal memory and the existing picture frame, and then produces the acceleration motivation value of a correspondence; And
One adjustment unit is in order to adjust this acceleration motivation value.
2, liquid crystal reaction time adjusting device as claimed in claim 1 is characterized in that, also comprises a synthesis unit, in order to will this adjusted acceleration motivation value to synthesize the pixel data of an output image picture frame with the pixel data of this existing picture frame.
3, liquid crystal reaction time adjusting device as claimed in claim 1 is characterized in that, this acceleration motivation value generation unit is a lookup table.
4, liquid crystal reaction time adjusting device as claimed in claim 1 is characterized in that, this adjustment unit is a gain amplifier.
5, liquid crystal reaction time adjusting device as claimed in claim 4 is characterized in that, the yield value of this gain amplifier is between 0 and 1.
6, liquid crystal reaction time adjusting device as claimed in claim 1 is characterized in that, this adjustment unit is a multiplier.
7, liquid crystal reaction time adjusting device as claimed in claim 1 is characterized in that, this liquid crystal reaction time adjusting device is installed in the liquid crystal indicator, and the OSD by this liquid crystal indicator sets this adjustment unit.
8, liquid crystal reaction time adjusting device as claimed in claim 7 is characterized in that, this OSD provides a plurality of display modes, and all predeterminable adjusted value of each display mode is to adjust this acceleration motivation value.
9, liquid crystal reaction time adjusting device as claimed in claim 1 is characterized in that, the function of this adjustment unit realizes by software.
10, a kind of picture menu device of adjusting the liquid crystal reaction time is located on the liquid crystal indicator, has color, brightness, reduced parameter adjustment menu, it is characterized in that, can adjust the liquid crystal reaction time of this liquid crystal indicator by this picture menu device.
11, the picture menu device in adjustment liquid crystal reaction time as claimed in claim 10, it is characterized in that, this picture menu device has a plurality of preset modes, the corresponding one group of parameter value of each preset mode, this parameter value is in order to the color of setting this liquid crystal indicator, brightness, to reaction time when.
12, the picture menu device in adjustment liquid crystal reaction time as claimed in claim 10, it is characterized in that, this liquid crystal indicator comprises a liquid crystal reaction time adjustment unit, and the liquid crystal reaction time of this liquid crystal indicator is adjusted in its setting according to this picture menu device.
13, the picture menu device in adjustment liquid crystal reaction time as claimed in claim 12 is characterized in that, this liquid crystal reaction time adjustment unit is a gain amplifier.
14, the picture menu device in adjustment liquid crystal reaction time as claimed in claim 12 is characterized in that, this liquid crystal reaction time adjustment unit is a multiplier.
15, the picture menu device in adjustment liquid crystal reaction time as claimed in claim 12 is characterized in that, the function of this liquid crystal reaction time adjustment unit realizes by software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101352719A CN100487784C (en) | 2005-12-29 | 2005-12-29 | Liquid crystal reaction time adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101352719A CN100487784C (en) | 2005-12-29 | 2005-12-29 | Liquid crystal reaction time adjusting device |
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| Publication Number | Publication Date |
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| CN1991953A true CN1991953A (en) | 2007-07-04 |
| CN100487784C CN100487784C (en) | 2009-05-13 |
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|---|---|---|---|
| CNB2005101352719A Active CN100487784C (en) | 2005-12-29 | 2005-12-29 | Liquid crystal reaction time adjusting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458903B (en) * | 2007-12-14 | 2011-12-07 | 佳世达科技股份有限公司 | Compensation device, method and electronic system applying the compensation device |
| CN102394044A (en) * | 2011-10-18 | 2012-03-28 | 友达光电股份有限公司 | display and pixel driving method thereof |
| CN102842298B (en) * | 2007-11-16 | 2015-12-16 | 瑞昱半导体股份有限公司 | The method of adjustment in display reaction time |
| CN108131641A (en) * | 2017-12-12 | 2018-06-08 | 李范伟 | A kind of driving signal projection arrangement and method |
-
2005
- 2005-12-29 CN CNB2005101352719A patent/CN100487784C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842298B (en) * | 2007-11-16 | 2015-12-16 | 瑞昱半导体股份有限公司 | The method of adjustment in display reaction time |
| CN101458903B (en) * | 2007-12-14 | 2011-12-07 | 佳世达科技股份有限公司 | Compensation device, method and electronic system applying the compensation device |
| CN102394044A (en) * | 2011-10-18 | 2012-03-28 | 友达光电股份有限公司 | display and pixel driving method thereof |
| CN102394044B (en) * | 2011-10-18 | 2014-05-07 | 友达光电股份有限公司 | Pixel driving method |
| CN104008718A (en) * | 2011-10-18 | 2014-08-27 | 友达光电股份有限公司 | Display and pixel driving method thereof |
| CN104008718B (en) * | 2011-10-18 | 2017-02-15 | 友达光电股份有限公司 | display and pixel driving method thereof |
| CN108131641A (en) * | 2017-12-12 | 2018-06-08 | 李范伟 | A kind of driving signal projection arrangement and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100487784C (en) | 2009-05-13 |
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Effective date of registration: 20200410 Address after: No.1, Duhang 1st Road, Hsinchu City, Hsinchu Science Park, Taiwan, China Patentee after: MEDIATEK Inc. Address before: Hsinchu County, Taiwan, China Patentee before: MStar Semiconductor, Inc. |
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