CN104795045A - Driving method, driving device and display of display panel - Google Patents
Driving method, driving device and display of display panel Download PDFInfo
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Abstract
The invention discloses a driving method, a driving device and a display of a display panel. The driving method comprises: determining pixel gray scale hopping difference values of pixels at vertex positions of temperature areas to determine the pixel gray scale hopping difference values of the pixels located on the boundaries of the temperature areas, determining the pixel gray scale hopping difference values of the pixels in the temperature areas according to the determined pixel gray scale hopping difference values of the pixels on the boundaries of the temperature areas, determining actual pixel driving voltage values necessary for driving the pixel gray scale hopping of the pixels according to the determined pixel gray scale hopping difference values of the pixels, in this way, in a transitional area of points and points, the pixel gray scale hopping difference values of the pixels in the transitional area are calculated by linear differential in real time to determine the actual pixel driving voltage values applied for driving the pixel gray scale hopping of the pixels in the transitional area, so as to continuously control the transitional area and improve the overall response time and response uniformity of the display panel.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of driving method of display panel, drive unit and display.
Background technology
At present, display technique is widely used in the display of TV, mobile phone and public information, and the flat-panel monitor for display frame is widelyd popularize because of the advantage of its ultra-thin energy-saving.As everyone knows, liquid crystal display has low in energy consumption, that other displays many such as volume is little, lightweight, ultra-thin screen are incomparable advantage, is widely used in recent years in monolithic processor controlled intelligent instrument, instrument and low power dissipation electron product.
In prior art, liquid crystal deflection is driven to realize display panels when showing, due to the physical characteristics of liquid crystal, under the driving of certain driving voltage, liquid crystal deflection needs the regular hour, the i.e. response time of liquid crystal, and under normal circumstances, this response time is slower, actual demand can not be met, so need the response speed improving liquid crystal, at this moment this method of overdriving just is introduced, and another important factor affecting the response speed of liquid crystal is temperature, there is very large difference the liquid crystal response time at different temperature, therefore, if all adopt same group of driving data at various temperatures, the liquid crystal display response time at different temperatures will be caused widely different, usually, in prior art, each temperature province on a display panel adopts no driving data to drive liquid crystal, to improving response time and the response homogeneity of whole display panel, but, on display panel, each temperature province adopts one group of driving data of fixing, therefore when display panels shows, each temperature province border transition place on display panel, the phenomenon of uneven saltus step will be there is, affect the image quality of display panel display.
Therefore, how improving the liquid crystal response time difference of each temperature province edge transitional region in liquid crystal display, improve the Whole Response speed of display panels and response homogeneity, is those skilled in the art's technical matterss urgently to be resolved hurrily.
Summary of the invention
Embodiments provide a kind of driving method of display panel, drive unit and display, deposit in order to solve in prior art the problem that each temperature province edge transitional region liquid crystal response time difference is larger on a display panel.
The invention process example provides a kind of driving method of display panel, and described display panel is divided into multiple temperature province, and this driving method comprises:
According to the Current Temperatures at each described temperature province vertex position place detected, and the pixel drive data that the pixel at the vertex position place of each described temperature province pre-determined out is corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each described temperature province vertex position place under determining Current Temperatures;
According to the pixel gray level saltus step difference of the pixel at the vertex position place of each described temperature province determined, determine the pixel gray level saltus step difference of each pixel be positioned on each described temperature province boundary line;
According to the pixel gray level saltus step difference of each pixel on each described temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each described temperature province;
According to the pixel gray level saltus step difference of each described pixel determined, determine that each described pixel of driving carries out the actual pixels driving voltage value needed for pixel gray level saltus step.
In a kind of possible embodiment, in the above-mentioned driving method that the embodiment of the present invention provides, the pixel gray level saltus step difference of the pixel at the vertex position place of the described each described temperature province according to determining, determine the pixel gray level saltus step difference of each pixel be positioned on each described temperature province boundary line, specifically comprise:
According to the pixel gray level saltus step difference of the pixel at two described vertex position places on the same boundary line of each described temperature province determined, determine the pixel gray level saltus step difference of each pixel between the pixel at described two vertex position places on line; Or,
According to the pixel gray level saltus step difference of two described vertex position place pixels on the same boundary line of each described temperature province determined, determine the pixel gray level saltus step difference of at least one pixel on line between the pixel at described two vertex position places, according to the pixel gray level saltus step difference of the pixel gray level saltus step difference of the pixel determined and the pixel at described two vertex position places, determine the pixel gray level saltus step difference being positioned at rest of pixels on described boundary line.
In a kind of possible embodiment, in the above-mentioned driving method that the embodiment of the present invention provides, according to the pixel gray level saltus step difference of each pixel on each described temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each described temperature province, specifically comprise:
According to the pixel gray level saltus step difference of each pixel on be parallel to each other two boundary lines of each described temperature province, to determine between described two parallel edges boundary lines and perpendicular to the pixel gray level saltus step difference of each pixel on the line in described two parallel edges boundary lines.
In a kind of possible embodiment, in the above-mentioned driving method that the embodiment of the present invention provides, determine the pixel gray level saltus step difference of each described pixel, specifically comprise:
According to the pixel gray level saltus step difference of two pixels determined, and the distance of at least one pixel respectively and between described two pixels between described two pixels on line, by linearly calculating the pixel gray level saltus step difference determining described pixel.
In a kind of possible embodiment, in the above-mentioned driving method that the embodiment of the present invention provides, determine the pixel gray level saltus step difference of each described pixel, specifically comprise:
According to the pixel gray level saltus step difference of two pixels determined, and the pixel quantity of at least one pixel respectively and between described two pixels between described two pixels on line, by linearly calculating the pixel gray level saltus step difference determining described pixel.
Embodiments provide a kind of drive unit of display panel, comprising: the first determining unit, the second determining unit, the 3rd determining unit and the 4th determining unit; Wherein,
Described first determining unit is used for the Current Temperatures according to each described temperature province vertex position place detected, and the pixel drive data that the pixel at the vertex position place of each described temperature province pre-determined out is corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each described temperature province vertex position place under determining Current Temperatures;
Described second determining unit is used for the pixel gray level saltus step difference according to the pixel at the vertex position place of each described temperature province determined, determines the pixel gray level saltus step difference of each pixel be positioned on each described temperature province boundary line;
Described 3rd determining unit, for the pixel gray level saltus step difference according to each pixel on each described temperature province boundary line determined, determines the pixel gray level saltus step difference of each pixel being positioned at each described temperature province;
Described 4th determining unit is used for the pixel gray level saltus step difference according to each described pixel determined, determines that each described pixel of driving carries out the actual pixels driving voltage value needed for pixel gray level saltus step.
In a kind of possible embodiment, in the above-mentioned drive unit that the embodiment of the present invention provides, described second determining unit, specifically for:
According to the pixel gray level saltus step difference of the pixel at two described vertex position places on the same boundary line of each described temperature province determined, determine the pixel gray level saltus step difference of each pixel between the pixel at described two vertex position places on line; Or,
According to the pixel gray level saltus step difference of two described vertex position place pixels on the same boundary line of each described temperature province determined, determine the pixel gray level saltus step difference of at least one pixel on line between the pixel at described two vertex position places, according to the pixel gray level saltus step difference of the pixel gray level saltus step difference of the described pixel determined and the pixel at described two vertex position places, determine the pixel gray level saltus step difference being positioned at rest of pixels on described boundary line.
In a kind of possible embodiment, in the above-mentioned drive unit that the embodiment of the present invention provides, described 3rd determining unit, specifically for:
According to the pixel gray level saltus step difference of each pixel on be parallel to each other two boundary lines of each described temperature province, to determine between described two parallel edges boundary lines and perpendicular to the pixel gray level saltus step difference of each pixel on the line in described two parallel edges boundary lines.
Embodiments provide a kind of display, comprising: the above-mentioned drive unit that display panel, temperature sensor, storer and the embodiment of the present invention provide; Wherein,
Described display panel is divided into multiple temperature province;
Described temperature sensor is for detecting the temperature at each described temperature province vertex position place on described display panel;
Described storer is for the pixel at the vertex position place storing each described temperature province pre-determined out the pixel drive data corresponding with different temperatures;
Described drive unit is used for the Current Temperatures at each described temperature province vertex position place detected according to described temperature sensor, and described storer store predefined go out the pixel at vertex position place of each described temperature province pixel drive data corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each described temperature province vertex position place under determining Current Temperatures;
According to the pixel gray level saltus step difference of the pixel at the vertex position place of each described temperature province determined, determine the pixel gray level saltus step difference of each pixel be positioned on each described temperature province boundary line;
According to the pixel gray level saltus step difference of each pixel on each described temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each described temperature province;
According to the pixel gray level saltus step difference of each described pixel determined, determine that each described pixel of driving carries out the actual pixels driving voltage value needed for pixel gray level saltus step.
The beneficial effect of the embodiment of the present invention comprises:
Embodiments provide a kind of driving method of display panel, drive unit and display, this driving method comprises: according to the Current Temperatures at each temperature province vertex position place detected, and the pixel drive data that the pixel at the vertex position place of each temperature province pre-determined out is corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each temperature province vertex position place under determining Current Temperatures, according to the pixel gray level saltus step difference of the pixel at the vertex position place of each temperature province determined, determine the pixel gray level saltus step difference being positioned at each pixel on each temperature province boundary line, according to the pixel gray level saltus step difference of each pixel on each temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each temperature province, according to the pixel gray level saltus step difference of each pixel determined, determine to drive the actual pixels driving voltage value that each pixel is carried out needed for pixel gray level saltus step, like this according to the pixel gray level saltus step difference of the pixel at each temperature province vertex position place determined, determine the pixel gray level saltus step difference of all the other position pixels, namely linear differential method is adopted to calculate the pixel gray level saltus step difference of each pixel in transitional region in real time in transitional region between points, and then determine the pixel drive voltage value driving each pixel to carry out the required actual applying of pixel gray level saltus step, thus realize the stepless control of transitional region on display panel, improve response time and the response homogeneity of display panel entirety.
Accompanying drawing explanation
The temperature province schematic diagram that the display panel that Fig. 1 provides for the embodiment of the present invention divides;
The driving method process flow diagram of the display panel that Fig. 2 provides for the embodiment of the present invention;
A temperature province schematic diagram on the display panel that Fig. 3 provides for example of the present invention;
The pixel drive data algorithm table that Fig. 4 provides for example of the present invention;
The structural representation of the drive unit that Fig. 5 provides for example of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the driving method of the display panel that the embodiment of the present invention provides, drive unit and display is described in detail.
Embodiments provide a kind of driving method of display panel, as shown in Figure 1, display panel can be divided into multiple temperature province, and T1-T12 is the summit of each temperature province, and this driving method as shown in Figure 2, can comprise the following steps:
The Current Temperatures at each temperature province vertex position place that S101, basis detect, and the pixel drive data that the pixel at the vertex position place of each temperature province pre-determined out is corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each temperature province vertex position place under determining Current Temperatures;
S102, pixel gray level saltus step difference according to the pixel at the vertex position place of each temperature province determined, determine the pixel gray level saltus step difference being positioned at each pixel on each temperature province boundary line;
The pixel gray level saltus step difference of each pixel on each temperature province boundary line that S103, basis are determined, determines the pixel gray level saltus step difference of each pixel being positioned at each temperature province;
S104, according to the pixel gray level saltus step difference of each pixel determined, determine to drive the actual pixels driving voltage value that each pixel is carried out needed for pixel gray level saltus step.
In the above-mentioned driving method that the embodiment of the present invention provides, according to the Current Temperatures at each temperature province vertex position place detected, and the pixel drive data that the pixel at the vertex position place of each temperature province pre-determined out is corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each temperature province vertex position place under determining Current Temperatures; According to the pixel gray level saltus step difference of the pixel at the vertex position place of each temperature province determined, determine the pixel gray level saltus step difference being positioned at each pixel on each temperature province boundary line; According to the pixel gray level saltus step difference of each pixel on each temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each temperature province; according to the pixel gray level saltus step difference of each pixel determined, determine to drive the actual pixels driving voltage value that each pixel is carried out needed for pixel gray level saltus step, like this according to the pixel gray level saltus step difference of the pixel at each temperature province vertex position place determined, determine the pixel gray level saltus step difference of all the other position pixels, namely linear differential method is adopted to calculate the pixel gray level saltus step difference of each pixel in transitional region in real time in transitional region between points, and then determine the pixel drive voltage value driving each pixel to carry out the required actual applying of pixel gray level saltus step, adopt one group of pixel drive data fixed relative to temperature province each in prior art and cause each temperature province edge transitional region to occur the problem of uneven saltus step, the driving method that the embodiment of the present invention provides can adopt linear differential method to calculate the pixel gray level saltus step difference of each pixel in transitional region in real time in transitional region between points, thus determine the pixel drive voltage value driving each pixel to carry out pixel gray level saltus step, realize the stepless control of transitional region on display panel, improve response time and the response homogeneity of display panel entirety.
In the specific implementation, in the above-mentioned driving method that the embodiment of the present invention provides, step S102 can specifically comprise: according to the pixel gray level saltus step difference of the pixel at two vertex position places on the same boundary line of each temperature province determined, determines the pixel gray level saltus step difference of each pixel between the pixel at two vertex position places on line; Or, according to the pixel gray level saltus step difference of two vertex position place pixels on the same boundary line of each temperature province determined, determine the pixel gray level saltus step difference of at least one pixel on line between the pixel at two vertex position places, according to the pixel gray level saltus step difference of the pixel gray level saltus step difference of the pixel determined and the pixel at two vertex position places, determine to be positioned at the pixel gray level saltus step difference of rest of pixels on boundary line.
Particularly, in the above-mentioned driving method that the embodiment of the present invention provides, can by the pixel gray level saltus step difference of the pixel of vertex position determined, to determine between summit on line the pixel gray level saltus step difference of each pixel on i.e. each temperature province boundary line, such as shown in Fig. 3, the summit of a temperature province is A, B, C, D, the pixel gray level saltus step difference of the pixel of known A point and B point position, be positioned at E point on AB line for needing to determine the location of pixels of pixel gray level saltus step difference, therefore the pixel gray level saltus step difference of the pixel of E point position can carry out linear differential calculating acquisition according to the pixel gray level saltus step difference of A point and B point, and between AB on line the pixel gray level saltus step difference of rest of pixels also can carry out linear differential by the pixel gray level saltus step difference of A point and B point and calculate and obtain, or the pixel gray level saltus step difference of the pixel between A point and E point is carried out linear differential by the pixel gray level saltus step difference of E point and A point and is calculated and obtain, the pixel gray level saltus step difference of the pixel between E point and B point carries out linear differential calculating acquisition by the pixel gray level saltus step difference of E point and B point, the pixel gray level saltus step difference of each pixel on all the other boundary lines can obtain in the same way, be not described further at this.
In the specific implementation, in the above-mentioned driving method that the embodiment of the present invention provides, step S103 can specifically comprise: according to the pixel gray level saltus step difference of each pixel on be parallel to each other two boundary lines of each temperature province, to determine between two parallel edges boundary lines and perpendicular to the pixel gray level saltus step difference of each pixel on the line in two parallel edges boundary lines.
Particularly, in the above-mentioned driving method that the embodiment of the present invention provides, the pixel gray level saltus step difference of each pixel being positioned at each temperature province can be determined according to the pixel gray level saltus step difference of each pixel on each temperature province boundary line, such as shown in Fig. 3, by determining the pixel gray level saltus step difference of the pixel of the E point between AB on line, with the pixel gray level saltus step difference of the pixel of the F point on CD line, and then by the pixel gray level saltus step difference of the pixel of E point, linear differential calculating is carried out with the pixel gray level saltus step difference of the pixel of F point, obtain the pixel gray level saltus step difference of the pixel of G point, and the pixel gray level saltus step difference of all the other each pixels also can obtain in the same way in temperature province, pixel is not made at this.
In the specific implementation, in the above-mentioned driving method that the embodiment of the present invention provides, determine the pixel gray level saltus step difference of each pixel, can specifically comprise: according to the pixel gray level saltus step difference of two pixels determined, and the distance of at least one pixel respectively and between two pixels between two pixels on line, by linearly calculating the pixel gray level saltus step difference determining pixel.
Particularly, in the above-mentioned driving method that the embodiment of the present invention provides, according to the pixel gray level saltus step difference of the pixel determined, by linear differential calculate obtain rest of pixels pixel gray level saltus step difference detailed process for: such as shown in Fig. 3, the distance of E point distance A point is X, the distance of distance B point is Y, the pixel gray level saltus step difference of the pixel of A point position is a, the pixel gray level saltus step difference b of the pixel of B point position, then pixel gray level saltus step difference e=(Y*a+X*b)/(X+Y) of the pixel of E point position, the pixel gray level saltus step difference calculating each pixel of transitional region between points in real time can be calculated like this by linear differential, and then determine that transitional region drives each pixel to carry out the required actual pixel drive voltage value applied of pixel gray level saltus step, thus realize the stepless control of transitional region, improve response time and the response homogeneity of display panel entirety.
In the specific implementation, in the above-mentioned driving method that the embodiment of the present invention provides, determine the pixel gray level saltus step difference of each pixel, can specifically comprise: according to the pixel gray level saltus step difference of two pixels determined, and the pixel quantity of at least one pixel respectively and between two pixels between two pixels on line, by linearly calculating the pixel gray level saltus step difference determining pixel.
Particularly, in the above-mentioned driving method that the embodiment of the present invention provides, according to the pixel gray level saltus step difference of the pixel determined, by linear differential calculate obtain rest of pixels pixel gray level saltus step difference detailed process for: such as shown in Fig. 3, E point and A point have X pixel, Y pixel is had between E point and B point, the pixel gray level saltus step difference of the pixel of A point position is a, the pixel gray level saltus step difference b of the pixel of B point position, then pixel gray level saltus step difference e=(Y*a+X*b)/(X+Y) of the pixel of E point position, because the size of pixel each on display panel is consistent, therefore the quantity of spacing one pixel being positioned at two points can be characterized, when carrying out linear differential between points and calculating, can be easier, the pixel gray level saltus step difference calculating each pixel of transitional region between points is in real time calculated like this by linear differential, and then determine that transitional region drives each pixel to carry out the required actual pixel drive voltage value applied of pixel gray level saltus step, thus realize the stepless control of transitional region, improve response time and the response homogeneity of display panel entirety.
Particularly, with a specific embodiment, the above-mentioned driving method that the embodiment of the present invention provides is described below, wherein, for the temperature province of on display panel, as shown in Figure 3, four summit A of this temperature province, B, C, the pixel gray level saltus step difference of the pixel of D position can be determined according to predetermined pixel drive data, the measurement of its pixel drive data is determined same as the prior art, be not described further at this, and G point is the position wishing to calculate pixel drive voltage value, because temperature variation has linear trends of change, therefore can determine that the pixel of G point position carries out the pixel drive voltage value needed for pixel gray level saltus step by linear differential, specific implementation process is as follows:
As shown in Figure 3, E point is the unknown point on the line between A point and B point, F point is the unknown point on the line between C point and D point, such as A point pixel, the GTG saltus step difference jumping to GTG 96 from GTG 128 under the Current Temperatures that B point pixel is corresponding is respectively-11,-6, the distance of E point distance A point is 500 pixels, spacing 1100 pixels of AB, therefore E point pixel jumps to the GTG saltus step difference of GTG 96 for [(1100-500) * (-11)+500* (-6)]/1100=-8.7 from GTG 128, result of calculation is rounded into-9, in the same way according to the pixel gray level saltus step difference of the pixel of C point and D point, and the pixel quantity of F point respectively and between C point and D point, F point jumps to GTG 96 pixel gray level saltus step difference from GTG 128 can be calculated, and then in the same way according to the pixel gray level saltus step difference of the pixel of E point and F point, and the pixel quantity of G point respectively and between E point and F point, calculate G point jumps to GTG 96 pixel gray level saltus step difference from GTG 128, the pixel drive voltage value driving G point pixel to carry out the actual applying of pixel gray level saltus step is determined finally by the pixel gray level saltus step difference determined, such as shown in Fig. 4, for pixel drive data algorithm table, wherein, runic-11 is the pixel gray level saltus step difference jumping to GTG 96 from GTG 128, therefore pixel is driven to jump to from GTG 128 the GTG driving voltage value that the actual pixel drive voltage applied of GTG 96 is 96-11=85.
Based on same inventive concept, embodiments provide a kind of drive unit of display panel, as shown in Figure 5, can comprise: the first determining unit 1, second determining unit 2, the 3rd determining unit 3 and the 4th determining unit 4; Wherein,
First determining unit 1 is for the Current Temperatures according to each temperature province vertex position place detected, and the pixel drive data that the pixel at the vertex position place of each temperature province pre-determined out is corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each temperature province vertex position place under determining Current Temperatures;
Second determining unit 2, for the pixel gray level saltus step difference of the pixel at the vertex position place according to each temperature province determined, determines the pixel gray level saltus step difference being positioned at each pixel on each temperature province boundary line;
3rd determining unit 3, for the pixel gray level saltus step difference according to each pixel on each temperature province boundary line determined, determines the pixel gray level saltus step difference of each pixel being positioned at each temperature province;
4th determining unit 4 for according to the pixel gray level saltus step difference of each pixel determined, determines to drive the actual pixels driving voltage value that each pixel is carried out needed for pixel gray level saltus step.
Particularly, in the above-mentioned drive unit that the embodiment of the present invention provides, by determining the pixel gray level saltus step difference of the pixel at each temperature province vertex position place, determine the pixel gray level saltus step difference of each pixel be positioned on each temperature province boundary line, according to the pixel gray level saltus step difference of each pixel on each temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each temperature province, according to the pixel gray level saltus step difference of each pixel determined, determine to drive the actual pixels driving voltage value that each pixel is carried out needed for pixel gray level saltus step, linear differential is adopted to calculate the difference that each pixel of transitional region carries out pixel gray level saltus step in real time in transitional region between points like this, and then determine that transitional region drives each pixel to carry out the required actual pixel drive voltage value applied of pixel gray level saltus step, thus realize the stepless control of transitional region, improve response time and the response homogeneity of display panel entirety.
In the specific implementation, in the above-mentioned drive unit that the embodiment of the present invention provides, second determining unit, specifically for: according to the pixel gray level saltus step difference of the pixel at two vertex position places on the same boundary line of each temperature province determined, determine the pixel gray level saltus step difference of each pixel between the pixel at two vertex position places on line; Or, according to the pixel gray level saltus step difference of two vertex position place pixels on the same boundary line of each temperature province determined, determine the pixel gray level saltus step difference of at least one pixel on line between the pixel at two vertex position places, according to the pixel gray level saltus step difference of the pixel gray level saltus step difference of the pixel determined and the pixel at two vertex position places, determine to be positioned at the pixel gray level saltus step difference of rest of pixels on boundary line.
Particularly, in the above-mentioned drive unit that the embodiment of the present invention provides, second determining unit can specifically for the pixel gray level saltus step difference of the pixel according to each temperature province vertex position place determined, determine the pixel gray level saltus step difference of each pixel between two summits on same boundary line on line, also the pixel gray level saltus step difference of at least one pixel between two summits on same boundary line on line can be determined, again according to the pixel gray level saltus step difference of two vertex position place pixels, with the pixel gray level saltus step difference of the pixel determined, the pixel gray level saltus step difference of the upper rest of pixels that defines boundaries, it determines that the process of the pixel gray level saltus step difference of each pixel is identical with the enforcement of abovementioned steps S102, be not described further at this.
In the specific implementation, in the above-mentioned drive unit that the embodiment of the present invention provides, 3rd determining unit, can be specifically for: according to the pixel gray level saltus step difference of each pixel on be parallel to each other two boundary lines of each temperature province, to determine between two parallel edges boundary lines and perpendicular to the pixel gray level saltus step difference of each pixel on the line in two parallel edges boundary lines.
Particularly, in the above-mentioned drive unit that the embodiment of the present invention provides, 3rd determining unit can specifically for the pixel gray level saltus step difference according to each pixel on each temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each temperature province, by the pixel gray level saltus step difference of each pixel in two parallel edges boundary lines, to determine between two parallel edges boundary lines and perpendicular to the pixel gray level saltus step difference of each pixel on the line in two parallel edges boundary lines, its detailed process is identical with the enforcement of abovementioned steps S103, be not described further at this.
Based on same inventive concept, embodiments provide a kind of display, comprising: the above-mentioned drive unit that display panel, temperature sensor, storer and the embodiment of the present invention provide; Wherein,
Display panel is divided into multiple temperature province;
The temperature at temperature sensor each temperature province vertex position place on detection display panel;
Storer is for the pixel at the vertex position place storing each temperature province pre-determined out the pixel drive data corresponding with different temperatures;
Drive unit is used for the Current Temperatures at each temperature province vertex position place detected according to temperature sensor, and storer store predefined go out the pixel at vertex position place of each temperature province pixel drive data corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each temperature province vertex position place under determining Current Temperatures;
According to the pixel gray level saltus step difference of the pixel at the vertex position place of each temperature province determined, determine the pixel gray level saltus step difference being positioned at each pixel on each temperature province boundary line;
According to the pixel gray level saltus step difference of each pixel on each temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each temperature province;
According to the pixel gray level saltus step difference of each pixel determined, determine to drive the actual pixels driving voltage value that each pixel is carried out needed for pixel gray level saltus step.
Particularly, in the aforementioned display device that the embodiment of the present invention provides, due to the physical characteristics of liquid crystal, can deflect under certain driving voltage, thus the Presentation Function of display can be realized, and due to liquid crystal at different temperatures, response time is widely different, therefore temperature sensor is provided with on a display panel, like this by the temperature of the liquid crystal at each temperature province vertex position place in temperature sensor real-time detection display panel, and the pixel drive data that the pixel at the vertex position place of predetermined each temperature province of storer storage is corresponding with different temperatures, determine the pixel gray level saltus step difference of each pixel on display panel and drive each pixel to carry out the pixel drive voltage value of pixel gray level saltus step, it is determined the pixel gray level saltus step difference of each pixel and drives each pixel to carry out the process of the pixel drive voltage value of pixel gray level saltus step as previously mentioned, be not described further at this, the transitional region that can be implemented in so between points adopts linear differential to calculate the difference that each pixel of transitional region carries out pixel gray level saltus step in real time, and then determine that transitional region drives each pixel to carry out the required actual pixel drive voltage value applied of pixel gray level saltus step, namely in each temperature province edge transitional region, each pixel uses different driving voltages to drive liquid crystal deflection, response time and the response homogeneity of display panel entirety can be improved.
Embodiments provide a kind of driving method of display panel, drive unit and display, this driving method comprises: according to the Current Temperatures at each temperature province vertex position place detected, and the pixel drive data that the pixel at the vertex position place of each temperature province pre-determined out is corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each temperature province vertex position place under determining Current Temperatures, according to the pixel gray level saltus step difference of the pixel at the vertex position place of each temperature province determined, determine the pixel gray level saltus step difference being positioned at each pixel on each temperature province boundary line, according to the pixel gray level saltus step difference of each pixel on each temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each temperature province, according to the pixel gray level saltus step difference of each pixel determined, determine to drive the actual pixels driving voltage value that each pixel is carried out needed for pixel gray level saltus step, like this according to the pixel gray level saltus step difference of the pixel at each temperature province vertex position place determined, determine the pixel gray level saltus step difference of all the other position pixels, namely linear differential method is adopted to calculate the pixel gray level saltus step difference of each pixel in transitional region in real time in transitional region between points, and then determine the pixel drive voltage value driving each pixel to carry out the required actual applying of pixel gray level saltus step, thus realize the stepless control of transitional region on display panel, improve response time and the response homogeneity of display panel entirety.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a driving method for display panel, described display panel is divided into multiple temperature province, it is characterized in that, this driving method comprises:
According to the Current Temperatures at each described temperature province vertex position place detected, and the pixel drive data that the pixel at the vertex position place of each described temperature province pre-determined out is corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each described temperature province vertex position place under determining Current Temperatures;
According to the pixel gray level saltus step difference of the pixel at the vertex position place of each described temperature province determined, determine the pixel gray level saltus step difference of each pixel be positioned on each described temperature province boundary line;
According to the pixel gray level saltus step difference of each pixel on each described temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each described temperature province;
According to the pixel gray level saltus step difference of each described pixel determined, determine that each described pixel of driving carries out the actual pixels driving voltage value needed for pixel gray level saltus step.
2. driving method as claimed in claim 1, it is characterized in that, the pixel gray level saltus step difference of the pixel at the vertex position place of the described each described temperature province according to determining, determine the pixel gray level saltus step difference of each pixel be positioned on each described temperature province boundary line, specifically comprise:
According to the pixel gray level saltus step difference of the pixel at two described vertex position places on the same boundary line of each described temperature province determined, determine the pixel gray level saltus step difference of each pixel between the pixel at described two vertex position places on line; Or,
According to the pixel gray level saltus step difference of two described vertex position place pixels on the same boundary line of each described temperature province determined, determine the pixel gray level saltus step difference of at least one pixel on line between the pixel at described two vertex position places, according to the pixel gray level saltus step difference of the pixel gray level saltus step difference of the described pixel determined and the pixel at described two vertex position places, determine the pixel gray level saltus step difference being positioned at rest of pixels on described boundary line.
3. driving method as claimed in claim 1, it is characterized in that, according to the pixel gray level saltus step difference of each pixel on each described temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each described temperature province, specifically comprise:
According to the pixel gray level saltus step difference of each pixel on be parallel to each other two boundary lines of each described temperature province, to determine between described two parallel edges boundary lines and perpendicular to the pixel gray level saltus step difference of each pixel on the line in described two parallel edges boundary lines.
4. the driving method as described in any one of claim 1-3, is characterized in that, determines the pixel gray level saltus step difference of each described pixel, specifically comprises:
According to the pixel gray level saltus step difference of two pixels determined, and the distance of at least one pixel respectively and between described two pixels between described two pixels on line, by linearly calculating the pixel gray level saltus step difference determining described pixel.
5. the driving method as described in any one of claim 1-3, is characterized in that, determines the pixel gray level saltus step difference of each described pixel, specifically comprises:
According to the pixel gray level saltus step difference of two pixels determined, and the pixel quantity of at least one pixel respectively and between described two pixels between described two pixels on line, by linearly calculating the pixel gray level saltus step difference determining described pixel.
6. a drive unit for display panel, is characterized in that, comprising: the first determining unit, the second determining unit, the 3rd determining unit and the 4th determining unit; Wherein,
Described first determining unit is used for the Current Temperatures according to each described temperature province vertex position place detected, and the pixel drive data that the pixel at the vertex position place of each described temperature province pre-determined out is corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each described temperature province vertex position place under determining Current Temperatures;
Described second determining unit is used for the pixel gray level saltus step difference according to the pixel at the vertex position place of each described temperature province determined, determines the pixel gray level saltus step difference of each pixel be positioned on each described temperature province boundary line;
Described 3rd determining unit, for the pixel gray level saltus step difference according to each pixel on each described temperature province boundary line determined, determines the pixel gray level saltus step difference of each pixel being positioned at each described temperature province;
Described 4th determining unit is used for the pixel gray level saltus step difference according to each described pixel determined, determines that each described pixel of driving carries out the actual pixels driving voltage value needed for pixel gray level saltus step.
7. drive unit as claimed in claim 6, is characterized in that, described second determining unit, specifically for:
According to the pixel gray level saltus step difference of the pixel at two described vertex position places on the same boundary line of each described temperature province determined, determine the pixel gray level saltus step difference of each pixel between the pixel at described two vertex position places on line; Or,
According to the pixel gray level saltus step difference of two described vertex position place pixels on the same boundary line of each described temperature province determined, determine the pixel gray level saltus step difference of at least one pixel on line between the pixel at described two vertex position places, according to the pixel gray level saltus step difference of the pixel gray level saltus step difference of the described pixel determined and the pixel at described two vertex position places, determine the pixel gray level saltus step difference being positioned at rest of pixels on described boundary line.
8. drive unit as claimed in claim 6, is characterized in that, described 3rd determining unit, specifically for:
According to the pixel gray level saltus step difference of each pixel on be parallel to each other two boundary lines of each described temperature province, to determine between described two parallel edges boundary lines and perpendicular to the pixel gray level saltus step difference of each pixel on the line in described two parallel edges boundary lines.
9. a display, is characterized in that, comprising: display panel, temperature sensor, storer and the drive unit as described in any one of claim 6-8; Wherein,
Described display panel is divided into multiple temperature province;
Described temperature sensor is for detecting the temperature at each described temperature province vertex position place on described display panel;
Described storer is for the pixel at the vertex position place storing each described temperature province pre-determined out the pixel drive data corresponding with different temperatures;
Described drive unit is used for the Current Temperatures at each described temperature province vertex position place detected according to described temperature sensor, and described storer store predefined go out the pixel at vertex position place of each described temperature province pixel drive data corresponding with different temperatures, the pixel gray level saltus step difference of the pixel at each described temperature province vertex position place under determining Current Temperatures;
According to the pixel gray level saltus step difference of the pixel at the vertex position place of each described temperature province determined, determine the pixel gray level saltus step difference of each pixel be positioned on each described temperature province boundary line;
According to the pixel gray level saltus step difference of each pixel on each described temperature province boundary line determined, determine the pixel gray level saltus step difference of each pixel being positioned at each described temperature province;
According to the pixel gray level saltus step difference of each described pixel determined, determine that each described pixel of driving carries out the actual pixels driving voltage value needed for pixel gray level saltus step.
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