CN114999419A - Display device and electronic apparatus - Google Patents
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- CN114999419A CN114999419A CN202210803392.XA CN202210803392A CN114999419A CN 114999419 A CN114999419 A CN 114999419A CN 202210803392 A CN202210803392 A CN 202210803392A CN 114999419 A CN114999419 A CN 114999419A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
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Abstract
The application discloses a display device and an electronic device, the display device comprises a display panel and a time schedule controller, the time schedule controller comprises at least one group of space compensation tables, at least one group of time compensation tables and a time control module, the time schedule controller executes the at least one group of space compensation tables to perform space compensation, different gray scales can be configured in one frame to a plurality of sub-pixels in each sub-pixel array, a viewer can see the display effect of the middle gray scale, and compared with the prior art that the brightness of one row of sub-pixels is sacrificed, the reduction of resolution can be reduced through the space compensation; the working time of the corresponding gray scale in the time compensation table is controlled by the time control module to compensate in time, so that a viewer can see the display effect of the intermediate gray scale, the display effect is combined with the space compensation, the granular sensation and the flicker sensation can be reduced, and compared with 8 domains, the transmittance and the brightness difference between front and side views, namely the viewing angle, can be improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display device and electronic equipment.
Background
As shown in fig. 1, as the viewing angle between the viewer and the display increases, the color shift experienced by the viewer tends to be slightly more severe.
Meanwhile, there is a large difference between the front luminance and the side luminance as perceived by the viewer, as shown in fig. 2, the ordinate represents the luminance percentage, the abscissa represents the gray scale, the curve S1 represents the luminance change in the side view, and the curve S2 represents the luminance change in the front view.
Based on the above problems, the related art improves the viewing angle by using a design technique of 8-Domain (Domain), but the design technique may cause a decrease in transmittance, which in turn causes deterioration in power consumption.
In addition, the related art also achieves a similar effect by using a space compensation technique in the timing controller (Tcon). However, the spatial compensation technique results in a reduced picture resolution and a poor picture quality. Specifically, as shown in fig. 3, the gray scale distribution of the sub-pixels under the gray scales 0, 64, 128, 192 and 255 are respectively shown from the first row to the fifth row from left to right, wherein the gray scale distribution shown in the first row from top to bottom is the same for each sub-pixel before the above spatial compensation technique is performed, for example, the gray scale of each sub-pixel under the gray scale 128 is 128. After the space compensation technology is adopted, four sub-pixels distributed in an array mode are taken as a minimum repeating unit, in the minimum repeating unit, the sub-pixels in the upper row keep the same higher gray scale, the sub-pixels in the lower row keep the same lower gray scale, liquid crystal has different deflection angles, the gray scale of the upper row is superposed with the gray scale of the lower row and is equal to a target gray scale after being averaged, and the space compensation technology can improve the visual angle, but also reduces half of the picture resolution at the same time. The visual effect of the spatial compensation technique is shown in fig. 4, the right image in fig. 4 is an original image, and the left image in fig. 4 is a display effect after the spatial compensation technique, so that it is obvious that the left image is rough in picture and large in granular sensation compared with the right image.
Disclosure of Invention
The application provides a display device and an electronic device, which are used for relieving the technical problem that the visual angle and the transmittance are difficult to be improved simultaneously.
In a first aspect, the present application provides a display device, which includes a display panel and a timing controller, the display panel including at least one sub-pixel array, each sub-pixel array including a plurality of sub-pixels; the time schedule controller is connected with the display panel; the time sequence controller comprises at least one group of space compensation tables, at least one group of time compensation tables and a time control module, wherein the space compensation tables are used for configuring different gray scales to a plurality of sub-pixels in each sub-pixel array in one frame; the time compensation table is used for configuring a plurality of gray scales to at least one sub-pixel array in one frame; the time control module is used for controlling the working time of each gray scale in the time compensation table.
In some embodiments, each sub-pixel array includes an upper left sub-pixel, an upper right sub-pixel, a lower left sub-pixel, and a lower right sub-pixel, which are distributed in an array, and in the same frame, the spatial compensation table sequentially and respectively configures a first gray scale, a second gray scale, a third gray scale, and a fourth gray scale to the upper left sub-pixel, the upper right sub-pixel, the lower left sub-pixel, and the lower right sub-pixel; wherein the first gray scale, the second gray scale, the third gray scale and the fourth gray scale are different from each other.
In some embodiments, the first gray scale, the second gray scale, the third gray scale and the fourth gray scale are sequentially decreased.
In some embodiments, the time control module controls the time compensation table to allocate a gray scale to at least one sub-pixel array in a first time period of a frame; the time control module controls the time compensation table to configure another gray scale to the at least one sub-pixel array in a second time period of one frame; wherein the first time period is different from the second time period.
In some embodiments, the timing controller further comprises at least one set of weight coefficient table, each item of data in the weight coefficient table comprises a space compensation coefficient and a time compensation coefficient, the space compensation coefficient is used for scaling each gray scale in the space compensation table, and the time compensation coefficient is used for scaling each gray scale in the time compensation table; the time schedule controller determines the gray scale range of the frame picture according to the received video signal, and calls the corresponding space compensation coefficient and time compensation coefficient according to the gray scale range of the frame picture.
In some embodiments, the gray scale range includes a low gray scale range, a middle gray scale range, and a high gray scale range; in the low gray scale range, the space compensation coefficient is larger than the time compensation coefficient along with the increase of the gray scale; in the middle gray scale range, along with the increase of the gray scale, the space compensation coefficient is equal to the time compensation coefficient; the spatial compensation coefficient is smaller than the temporal compensation coefficient as the gray scale increases in the high gray scale range.
In some embodiments, the spatial compensation coefficient is gradually decreased and the temporal compensation coefficient is gradually increased along with the increase of the gray scale in the low gray scale range and the high gray scale range; in the middle gray scale range, the space compensation coefficient and the time compensation coefficient are kept unchanged along with the increase of the gray scale.
In some of these embodiments, in the low gray scale range, the range of spatial compensation coefficients is greater than or equal to 1 and less than or equal to 1.6; in the medium gray scale range, the spatial compensation coefficient is equal to 1; in the high grayscale range, the range of the spatial compensation coefficient is greater than or equal to 0.35 and less than or equal to 1.
In some of these embodiments, in the low gray scale range, the range of the time compensation factor is greater than or equal to 0.4 and less than or equal to 1; in the low gray scale range, the time compensation factor is equal to 1; in the high gradation range, the range of the time compensation coefficient is 1 or more and 1.65 or less.
In a second aspect, the present application provides an electronic device, which includes the display device in at least one of the above embodiments, wherein the display device is a vertical alignment liquid crystal display device.
According to the display device and the electronic equipment, the at least one group of space compensation tables are executed through the time schedule controller to perform space compensation, different gray scales can be configured to the plurality of sub-pixels in each sub-pixel array in one frame, a viewer can see the display effect of the middle gray scale, and compared with the situation that the brightness of one row of sub-pixels is sacrificed in the related art, the space compensation can reduce the reduction of the resolution; the working time of the corresponding gray scale in the time compensation table is controlled by the time control module to compensate in time, so that a viewer can see the display effect of the intermediate gray scale, the display effect is combined with the space compensation, the granular sensation and the flicker sensation can be reduced, and compared with 8 domains, the transmittance and the brightness difference between front and side views, namely the viewing angle, can be improved.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of color shift as a function of viewing angle in the related art.
Fig. 2 is a diagram illustrating a comparison of brightness differences between front and side views in the related art.
Fig. 3 is a schematic diagram illustrating a principle of spatial compensation in the related art.
Fig. 4 is a schematic diagram illustrating comparison between the effects of the spatial compensation shown in fig. 3.
Fig. 5 is a schematic structural diagram of a display device according to an embodiment of the present application.
Fig. 6 is a schematic working diagram of a spatial compensation table according to an embodiment of the present application.
Fig. 7 is a schematic diagram of an operation of a time compensation table according to an embodiment of the present application.
Fig. 8 is a schematic diagram of an operation of a weight coefficient table according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In view of the above-mentioned technical problem that the viewing angle and transmittance are difficult to be improved at the same time, the present embodiment provides a display device, as shown in fig. 5 to 8, and as shown in fig. 5, the display device includes a display panel 100 and a timing controller 200, the display panel 100 includes at least one sub-pixel array 110, each sub-pixel array 110 includes a plurality of sub-pixels 111; the timing controller 200 is connected to the display panel 100; the timing controller 200 includes at least one spatial compensation table 210, at least one time compensation table 220, and a time control module 230, wherein the spatial compensation table 210 is used for configuring different gray scales to the plurality of sub-pixels 111 in each sub-pixel array 110 in one frame; the time compensation table 220 is used for allocating a plurality of gray scales to at least one sub-pixel array 110 in one frame; the time control module 230 is used for controlling the operation time of each gray level in the time compensation table 220.
It can be understood that, in the display device provided in the embodiment, by executing at least one set of spatial compensation table 210 by the timing controller 200 to perform spatial compensation, different gray scales can be configured to the plurality of sub-pixels 111 in each sub-pixel array 110 in one frame, and a viewer can see the display effect of the intermediate gray scale, and the spatial compensation can reduce the reduction of resolution compared to the related art that sacrifices the brightness of a row of sub-pixels 111; the time control module 230 controls the working time of the corresponding gray scale in the time compensation table 220 to compensate in time, so that the viewer can also see the display effect of the intermediate gray scale, and the viewer can reduce the granular sensation and the flicker sensation by combining with the spatial compensation, and can improve the transmittance and the brightness difference between the front view and the side view, i.e. the viewing angle, compared with the 8-domain.
In one embodiment, as shown in fig. 5 and 6, each sub-pixel array 110 includes an upper left sub-pixel 111, an upper right sub-pixel 111, a lower left sub-pixel 111, and a lower right sub-pixel, which are distributed in an array, and in the same frame, the spatial compensation table 210 sequentially and respectively configures a first gray scale, a second gray scale, a third gray scale, and a fourth gray scale to the upper left sub-pixel 111, the upper right sub-pixel 111, the lower left sub-pixel 111, and the lower right sub-pixel; wherein the first gray scale, the second gray scale, the third gray scale and the fourth gray scale are different from each other.
It should be noted that the number of the sub-pixels 111 distributed in the array included in each sub-pixel array 110 is not limited to four in the present embodiment, and may also be an even number, such as six, eight, ten, and so on. Compared with the case in which the same gray level is assigned to the sub-pixels 111 in the same row of the sub-pixel array 110 in fig. 3, which results in the sacrifice of the brightness of the sub-pixels 111 in the same row, the sub-pixels 111 in the same row of the sub-pixel array 110 in the present embodiment are assigned with different gray levels, which not only does not lose the brightness of the sub-pixels 111 in the same row, but also can be recognized as an average gray level of the sub-pixel array 110 by human eyes after the different gray levels of the sub-pixel array 110 are spatially combined, so that four different gray levels can be combined into a plurality of different intermediate gray levels, for example, 1/4 gray levels, 2/4 gray levels, 3/4 gray levels and the like between 0 gray level and the average gray level (which can be regarded as 1 gray level).
In one embodiment, the first gray scale, the second gray scale, the third gray scale and the fourth gray scale are decreased in sequence.
It should be noted that the first gray scale, the second gray scale, the third gray scale and the fourth gray scale may also be sequentially increased, that is, the sizes of the first gray scale, the second gray scale, the third gray scale and the fourth gray scale may be sequentially changed. The above two gray scale arrangement orders can be used as preferred embodiments, such that the arrangement of the gray scales in the sub-pixel array 110 is changed in order, which is beneficial to reducing or avoiding the granular sensation.
Specifically, the operation principle of the spatial compensation table 210 provided by the present application is shown in fig. 6, wherein the first row in fig. 6 is a schematic diagram in which each sub-pixel 111 is assigned with the same gray level before spatial compensation is performed. The second row in fig. 6 is a schematic diagram after the spatial compensation as shown in fig. 3 is performed. The third row in fig. 6 is a schematic diagram after the spatial compensation table 210 provided by the present application is executed. In fig. 6, five rows from left to right are assigned to the gray levels of the sub-pixels 111 under the gray levels of 0, 64, 128, 192 and 255, respectively, for example, the gray level of the sub-pixel 111 in the first row is 64; each sub-pixel 111 in the upper row of the sub-pixel array 110 in the second row has a gray scale, and each sub-pixel 111 in the lower row of the sub-pixel array 110 in the second row has another gray scale; and each sub-pixel 111 in the same sub-pixel array 110 in the third row has a different gray scale, wherein the average gray scale of each sub-pixel 111 in the same sub-pixel array 110 is 64 gray scales.
In one embodiment, as shown in fig. 5 and 7, the time control module 230 controls the time compensation table 220 to allocate a gray level to at least one of the sub-pixel arrays 110 during a first period of a frame; the time control module 230 controls the time compensation table 220 to allocate another gray level to at least one of the sub-pixel arrays 110 during a second period of a frame; wherein the first time period is different from the second time period.
It should be noted that, in this embodiment, a frame may include a plurality of time periods that are not overlapped with each other in time, for example, a first time period, a second time period, a third time period, and the like, each time period may correspond to a gray scale, and the more time periods are divided, the better the time compensation effect provided by the present application is. Wherein the first time period may be earlier or later than the second time period.
Different gray scales are configured in different time periods, the display brightness of different time periods in one frame can be changed, the display brightness of one frame is further adjusted, the fusion of brightness is realized by utilizing the visual inertia of human eyes, namely the brightness feeling of the human eyes cannot disappear immediately along with the disappearance of the brightness of an object, and the time compensation of the application is realized.
Specifically, the working principle of the time compensation table 220 provided by the present application is shown in fig. 7, wherein the first column, the second column, the third column and the fourth column from left to right are the first Frame (1st), the second Frame (2nd), the third Frame (3rd) and the fourth Frame (4th) of the consecutive four frames (frames), respectively. The first row shows a frame corresponding to a gray scale of 255, the fifth row shows a frame corresponding to a gray scale of 0, the two gray scales are two end point values at a gray scale of 256, and there is no space for modulation. In the second row, the first three frames of pictures can be configured to be 255 gray levels, and the fourth frame of pictures can be configured to be 0 gray level, so that the human eyes can watch the required higher gray level. In the third row, the first frame picture may be configured to be 255 gray scale, the second frame picture may be configured to be 0 gray scale, the third frame picture may be configured to be 255 gray scale, and the fourth frame picture may be configured to be 0 gray scale, so as to realize a lower gray scale required for human eyes to watch. In the fourth row, the first frame picture can be configured to be 255 gray scale, the second frame picture can be configured to be 0 gray scale, the third frame picture can be configured to be 0 gray scale, and the fourth frame picture can be configured to be 0 gray scale, so that the lower gray scale required by human eyes can be realized.
It should be noted that fig. 7 only shows the switching of the inter-frame gray levels, and similarly, the time compensation table 220 in the present application, in combination with the time control module 230, can implement the switching of the gray levels in different time periods within a frame to implement more precise and fine time compensation.
In one embodiment, as shown in fig. 5 and 8, the timing controller 200 further includes at least one set of weight coefficient table, each item of data in the weight coefficient table includes a spatial compensation coefficient and a temporal compensation coefficient, the spatial compensation coefficient is used for scaling each gray scale in the spatial compensation table 210, and the temporal compensation coefficient is used for scaling each gray scale in the temporal compensation table 220; the timing controller 200 determines a gray scale range of a frame according to the received video signal, and calls a corresponding spatial compensation coefficient and a corresponding time compensation coefficient according to the gray scale range of the frame.
It should be noted that, because human eyes have different sensitivities to different luminances, the present embodiment may adjust the time compensation table 220 by using the time compensation coefficient in a frame picture with a low gray scale to easily cause a flicker problem, and adjust the space compensation table 210 by using the space compensation coefficient in a frame picture with a high gray scale to easily cause a graininess problem.
As shown in FIG. 8, the curve S3 represents the spatial compensation coefficients corresponding to different gray levels, and the curve S4 represents the temporal compensation coefficients corresponding to different gray levels. It can be understood that different point values in the curves S3 and S4 correspond to different spatial compensation coefficients and temporal compensation coefficients, and thus each item of data in the weight coefficient table is composed, so that a corresponding weight coefficient table can be obtained.
In one embodiment, the gray scale range includes a low gray scale range, a middle gray scale range, and a high gray scale range; in the low gray scale range, the spatial compensation coefficient is larger than the temporal compensation coefficient along with the increase of the gray scale; in the middle gray scale range, along with the increase of the gray scale, the space compensation coefficient is equal to the time compensation coefficient; the spatial compensation coefficient is smaller than the temporal compensation coefficient as the gray scale increases in the high gray scale range.
It should be noted that the spatial compensation table 210, the temporal compensation table 220, and the temporal control module 230 can perfectly avoid the technical problems of transmittance reduction and resolution reduction, and improve the display effect of the brightness difference between the viewing angles, i.e. front and side views. On the basis, the magnitude relation between the space compensation coefficient and the time compensation coefficient is configured in different gray scale ranges, so that further optimization of flicker and granular sensation can be realized.
In one embodiment, the space compensation coefficient is gradually reduced and the time compensation coefficient is gradually increased along with the increase of the gray scale in the low gray scale range and the high gray scale range; in the middle gray scale range, the space compensation coefficient and the time compensation coefficient are kept unchanged along with the increase of the gray scale.
It should be noted that the variation trends of the spatial compensation coefficients and the temporal compensation coefficients in different gray scale ranges in this embodiment are preferred embodiments obtained by long-term research and practice of the inventors, and better display effects can be achieved by using this embodiment.
In one embodiment, in the low gray scale range, the range of the spatial compensation coefficient is greater than or equal to 1 and less than or equal to 1.6; in the medium gray scale range, the spatial compensation coefficient is equal to 1; in the high grayscale range, the range of the spatial compensation coefficient is greater than or equal to 0.35 and less than or equal to 1.
It should be noted that, in the present embodiment, on the basis of long-term research and practice of the inventor, the value range of the spatial compensation coefficient is further limited in the corresponding gray scale range, and as a preferred embodiment, a better display effect can be achieved.
In one embodiment, in the low gray scale range, the range of the time compensation coefficient is greater than or equal to 0.4 and less than or equal to 1; in the low gray scale range, the time compensation factor is equal to 1; in the high gradation range, the range of the time compensation coefficient is 1 or more and 1.65 or less.
It should be noted that, in this embodiment, on the basis of long-term research and practice of the inventor, the value range of the time compensation coefficient is further limited in the corresponding gray scale range, and as a preferred embodiment, a better display effect can also be achieved.
In one embodiment, the present embodiment provides an electronic device, which includes the display device in at least one of the above embodiments, wherein the display device is a vertical alignment liquid crystal display device.
It can be understood that, in the electronic device provided in the embodiment, by executing at least one set of spatial compensation table 210 by the timing controller 200 to perform spatial compensation, different gray scales can be configured to the plurality of sub-pixels 111 in each sub-pixel array 110 in one frame, and a viewer can see a display effect of an intermediate gray scale, so that the spatial compensation can reduce a reduction in resolution compared to sacrificing the brightness of a row of sub-pixels 111 in the related art; the time control module 230 controls the working time of the corresponding gray scale in the time compensation table 220 to compensate in time, so that the viewer can also see the display effect of the intermediate gray scale, and the viewer can reduce the granular sensation and the flicker sensation by combining with the spatial compensation, and can improve the transmittance and the brightness difference between the front view and the side view, i.e. the viewing angle, compared with the 8-domain.
It should be noted that the display device in the present embodiment may be other types of liquid crystal display devices, and the technical problem to be solved by the present application is more prominent in the vertical alignment type liquid crystal display device, and accordingly, when the vertical alignment type liquid crystal display device adopts the technical solution of the spatial compensation and the temporal compensation of the present application, the maximum improvement effect can be obtained.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display device and the electronic device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present application, and the description of the embodiments is only used to help understanding the technical solutions and their core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A display device, comprising:
a display panel comprising at least one sub-pixel array, each said sub-pixel array comprising a plurality of sub-pixels; and
the time sequence controller is connected with the display panel;
wherein the timing controller includes:
at least one set of spatial compensation tables for configuring different gray scales to a plurality of sub-pixels in each sub-pixel array in a frame;
at least one time compensation table for configuring a plurality of gray scales to the at least one sub-pixel array in one frame; and
and the time control module is used for controlling the working time of each gray scale in the time compensation table.
2. The display device according to claim 1, wherein each of the sub-pixel arrays comprises an upper left sub-pixel, an upper right sub-pixel, a lower left sub-pixel and a lower right sub-pixel, which are distributed in an array, and the spatial compensation table sequentially allocates a first gray scale, a second gray scale, a third gray scale and a fourth gray scale to the upper left sub-pixel, the upper right sub-pixel, the lower left sub-pixel and the lower right sub-pixel respectively in a same frame; wherein the first, second, third, and fourth grayscales are different from each other.
3. The display device according to claim 2, wherein the first gray scale, the second gray scale, the third gray scale, and the fourth gray scale decrease in order.
4. The display device according to claim 1, wherein the timing control module controls the timing compensation table to configure a gray scale to the at least one sub-pixel array during a first period of a frame; the time control module controls the time compensation table to configure another gray scale to the at least one sub-pixel array in a second time period of one frame; wherein the first time period is different from the second time period.
5. The display device according to claim 1, wherein the timing controller further comprises at least one set of weight coefficient table, each item of data in the weight coefficient table comprises a spatial compensation coefficient and a temporal compensation coefficient, the spatial compensation coefficient is used for scaling each gray scale in the spatial compensation table, and the temporal compensation coefficient is used for scaling each gray scale in the temporal compensation table;
and the time schedule controller determines the gray scale range of a frame picture according to the received video signal and calls the corresponding space compensation coefficient and the time compensation coefficient according to the gray scale range of the frame picture.
6. The display device according to claim 5, wherein the grayscale range includes a low grayscale range, a middle grayscale range, and a high grayscale range;
the spatial compensation coefficient is greater than the temporal compensation coefficient as gray scale increases in the low gray scale range;
the spatial compensation coefficient is equal to the temporal compensation coefficient as the gray scale increases in the middle gray scale range;
the spatial compensation coefficient is smaller than the temporal compensation coefficient as the gray scale increases in the high gray scale range.
7. The display device according to claim 6, wherein the spatial compensation coefficient is gradually decreased and the temporal compensation coefficient is gradually increased as gray scales are increased in the low gray scale range and the high gray scale range;
the space compensation coefficient and the time compensation coefficient are kept unchanged along with the increase of gray scales in the middle gray scale range.
8. The display device according to claim 6, wherein in the low gradation range, the range of the spatial compensation coefficient is greater than or equal to 1 and less than or equal to 1.6; in the intermediate gray scale range, the spatial compensation coefficient is equal to 1; in the high grayscale range, the range of the spatial compensation coefficient is greater than or equal to 0.35 and less than or equal to 1.
9. The display device according to claim 6, wherein in the low gradation range, the range of the time compensation coefficient is greater than or equal to 0.4 and less than or equal to 1; in the low gray scale range, the time compensation factor is equal to 1; in the high grayscale range, the range of the time compensation coefficient is greater than or equal to 1 and less than or equal to 1.65.
10. An electronic apparatus comprising the display device according to any one of claims 1 to 9, wherein the display device is a vertical alignment type liquid crystal display device.
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