This application claims priority of Chinese Patent Application No. 202211634144.3, filed on Dec. 19, 2022, the entire content of which is hereby incorporated by reference.
The present disclosure generally relates to the field of display technology and, more particularly, relates to a display module, a driving method thereof, and a display device.
In existing technologies, a display module may include a display panel and a backlight module. Brightness of the backlight module may be adjusted by a local dimming technology. The backlight module may be divided into a plurality of backlight partitions, and backlight brightness of each backlight partition may be adjusted separately. When the display module displays a high-resolution picture, and when an area of each backlight partition in the backlight module is large, due to lighting of the backlight partition with a large area, light sources may exist at the edge of the picture that do not need light sources. Since this part of the light source may have a large area, halos may appear at the edge of the picture displayed. That is, dimming effects of the local dimming technology may not be ideal at the position of the backlight module corresponding to the edge of the picture displayed. Tuning of the corresponding display fineness may be difficult, and unfavorable display effects, such as halos at corners of the picture, may appear.
One aspect of the present disclosure includes a display module. The display module includes a backlight structure including a plurality of backlight partitions. The display module includes a first display mode and a second display mode. Resolution of the display module in the first display mode is greater than the resolution of the display module in the second display mode. In the first display mode, a quantity of the plurality of backlight partitions of the backlight structure is n1, and an area of one of the plurality of backlight partitions of the backlight structure is S1. In the second display mode, the quantity of the plurality of backlight partitions of the backlight structure is n2, and the area of one of the plurality of backlight partitions of the backlight structure is S2, with n1>n2, and S1<S2.
Another aspect of the present disclosure includes a driving method for a display module. The display module includes a backlight structure including a plurality of backlight partitions, the display module includes a first display mode and a second display mode, and resolution of the display module in the first display mode is greater than the resolution of the display module in the second display mode. The driving method includes, in the first display mode, adjusting the backlight partitions of the backlight structure, such that a quantity of the backlight partitions of the backlight structure is n1, and an area of one of the backlight partitions of the backlight structure is S1. The driving method also includes, in the second display mode, adjusting the backlight partitions of the backlight structure, such that the backlight partitions of the backlight structure is n2, and the area of one of the backlight partitions of the backlight structure is S2, with n1>n2, and S1<S2.
Another aspect of the present disclosure includes a display device. The display device includes a display module. The display module includes a backlight structure including a plurality of backlight partitions. The display module includes a first display mode and a second display mode. Resolution of the display module in the first display mode is greater than the resolution of the display module in the second display mode. In the first display mode, a quantity of the plurality of backlight partitions of the backlight structure is n1, and an area of one of the plurality of backlight partitions of the backlight structure is S1. In the second display mode, the quantity of the plurality of backlight partitions of the backlight structure is n2, and the area of one of the plurality of backlight partitions of the backlight structure is S2, with n1>n2, and S1<S2.
Other aspects of the present disclosure may be understood by those skilled in the art in light of the description, the claims, and the drawings of the present disclosure.
The following drawings are merely examples for illustrative purposes according to various disclosed embodiments and are not intended to limit the scope of the present disclosure.
To make the objectives, technical solutions and advantages of the present disclosure clearer and more explicit, the present disclosure is described in further detail with accompanying drawings and embodiments. It should be understood that the specific exemplary embodiments described herein are only for explaining the present disclosure and are not intended to limit the present disclosure.
Technologies, methods, and equipment known to those of ordinary skill in relevant fields may not be discussed in detail, but where appropriate, these technologies, methods, and equipment should be regarded as part of the specification.
In the present disclosure, any specific values should be construed as exemplary only, and not as limitations. Different embodiments may have different values.
Reference will now be made in detail to embodiments of the present disclosure, which are illustrated in the accompanying drawings. Similar labels and letters designate similar items in the drawings. Once an item is defined in one drawing, the item may not be defined and discussed in subsequent drawings.
The display module may include a first display mode and a second display mode. Resolution of the display module in the first display mode is greater than resolution of the display module in the second display mode. That is, in the first display mode, the display module may display a high-resolution picture, and in the second display mode, the display module may display a low-resolution picture.
In the first display mode, the quantity of backlight partitions 11a of the backlight structure 10 is n1, and the area of each backlight partition 11a of the backlight structure 10 is S1. In the second display mode, the quantity of backlight partitions 11b of the backlight structure 10 is n2, and the area of each backlight partition 11b of the backlight structure 10 is S2, with n1>n2, S1<S2. That is, the quantity of backlight partitions 11a in the backlight structure 10 in the first display mode is greater than the quantity of backlight partitions 11b in the backlight structure 10 in the second display mode. Accordingly, the area of each backlight partition 11a in the first display mode is smaller than the area of each backlight partition 11a in the second display mode.
Specifically, in the present disclosure, the area of the backlight partition 11 in the backlight structure 10 may be adjusted according to the display mode of the display module. When the display module displays a high-resolution picture, the backlight structure 10 may be divided into more backlight partitions 11, and thus the area of each backlight partition 11 in the backlight structure 10 may be reduced. Accordingly, at the edge of the picture displayed by the display module, the area of the backlight partition 11 may be relatively small. As such, at the edge of the picture displayed, even if a light source may exist at the part that does not need to a light source, the area of the part of the light source may be small. Thus, the halos at the edge of the picture displayed may be reduced, and may even be negligible. Accordingly, the difficulty of adjusting the fineness of high-resolution pictures may be decreased, problems such as halos on the edges of pictures displayed may be reduced, and display effects may thus be improved.
It should be noted that,
It should be noted that,
With continuous reference to
It should be noted that, in some other embodiments, the light-emitting unit 13 may also be an LED or a Micro-LED. The present disclosure will not go into details here.
In the first display mode, the quantity of the light-emitting units 13 in one backlight partition 11a is N1. In the second display mode, the quantity of the light-emitting units 13 in one backlight partition 11b is N2, with N1<N2. Exemplarily, referring to
Specifically, in the display module provided by the present disclosure, the area of the backlight partition 11 in the backlight structure 10 may be adjusted according to the display mode of the display module. When the display module displays a high-resolution picture, the quantity of the light-emitting units 13 in each backlight partition 11 in the backlight structure 10 may be reduced. Accordingly, the area of each backlight partition 11 in the backlight structure 10 may be decreased. As such, the difficulty of adjusting the fineness of the high-resolution picture may be reduced, problems such as halos at the edge of the picture displayed may be alleviated, and the display effect may thus be improved.
It should be noted that
In some embodiments, in the second display mode, some light-emitting units in the backlight partition may not emit light.
Specifically, in one embodiment, the area of the backlight partition 11 in the backlight structure 10 may be adjusted according to the display mode of the display module. When the display module displays a high-resolution picture, the quantity of the light-emitting units 13 in each backlight partition 11 in the backlight structure 10 may be reduced, and the area of each backlight partition 11 in the backlight structure 10 may thus be reduced. Accordingly, the difficulty of adjusting the fineness of the high-resolution picture may be reduced, problems such as halos at the edge of the picture displayed may be alleviated, and the display effect may thus be improved. In addition, in the second display mode, the display module displays a low-resolution picture. When the backlight partition 11b in the backlight structure 10 needs to provide a light source, some light-emitting units 13 in the backlight partition 11b may not emit light. As such, while meeting the resolution requirement of the display screen of the display module, power consumption may be reduced, and device consumption may also be reduced.
It should be noted that,
The backlight structure 10 may further include a plurality of scan lines G extending along the first direction X and a plurality of data lines D extending along the second direction Y. The light-emitting units 13 arranged along the first direction X are electrically connected to a same scan line G. That is, an entire row of light-emitting units 13 arranged along the first direction X is electrically connected to a same scan line G. The light-emitting units 13 arranged along the second direction Y are electrically connected to a same data line D. That is, the entire column of light-emitting units 13 arranged along the second direction Y is electrically connected to a same data line D.
The data lines D may be used to transmit signals to adjust the quantity of the light-emitting units 13 in each backlight partition 11 in the first display mode and in the second display mode. The scan lines G may be used to transmit signals to adjust the quantity of the light-emitting units 13 in each backlight partition 11 in the first display mode and in the second display mode.
Specifically,
It should be noted that
In some embodiments, the data lines may be used to transmit signals to adjust the ratio of the light-emitting units used for emitting light and the light-emitting units not used for emitting light in the backlight partition in the second display mode. The scan lines may also be used to transmit signals to adjust the ratio of the light-emitting units used for emitting light and the light-emitting units not used for emitting light in the backlight partition in the second display mode.
Specifically,
Optionally, in the second display mode, in two adjacent backlight partitions 11b along the first direction X, the light-emitting units 13a used for emitting light and the light-emitting units 13b not used for emitting light may be arranged alternately. As such, the overall uniformity of the light source of the backlight structure 10 may be improved, and the display effect may thus be improved.
Optionally, in the second display mode, in two adjacent backlight partitions 11b along the second direction Y, the light-emitting units 13a used for emitting light and the light-emitting units 13b not used for emitting light may be arranged alternately. As such, the overall uniformity of the light source of the backlight structure 10 may be improved, and thus the display effect may be improved.
In the second display mode, the ratio of the light-emitting unit 13a used for emitting light to the light-emitting unit 13b not used for emitting light in the backlight partition 11b may be adjusted through the signals of the data lines D and/or the scan lines G. In addition, the arrangement of the light-emitting units 13a used for emitting light and the light-emitting units 13b not used for emitting light in the backlight partition 11b may be adjusted through the signals of the data lines D and/or the scan lines G.
It should be noted that, in the present disclosure, in the second display mode, when the quantity of the light-emitting units 13 in each backlight partition 11b in the backlight structure 10 is 2×2, a plurality of arrangements of the light-emitting units 13a used for emitting light and the light-emitting units 13b not used for emitting light in the backlight partition 11b may be achieved through the adjustment of the signals of the data lines D and the scan lines G. In some other embodiments, other signal adjustment methods may also be used. The present disclosure will not go into details here.
In the second display mode, when the numbers of light-emitting units 13 in each backlight partition 11b in the backlight structure 10 are other numbers, realization of arrangements of the light-emitting units 13a used for emitting light and the light-emitting units 13b not used for emitting light in the backlight partition 11b through the adjustment of signals in the data lines D and the scan lines G may refer to the adjustment of the signals of the data lines D and the scan lines G presented in the present disclosure. The present disclosure will not go into details here.
Referring to
The backlight structure 10 may also include at two or more shift-register groups 14. Two adjacent scan lines G may be electrically connected to different shift-register groups 14 respectively. That is, the scan lines G in each scan line group may be electrically connected to different shift-register groups 14. Two shift-register groups 14 may simultaneously provide same signals to different scan lines G in a same scan line group that are electrically connected to the two shift-register groups 14. Thus, the signals of the scan lines G in the same scan line group may be same. Accordingly, the difficulty of driving the scan lines G by the shift-register groups 14 may be reduced, the design difficulty of the register groups 14 may be reduced, and the production cost may be decreased.
In one embodiment, the backlight structure 10 includes two shift-register groups 14. The two shift-register groups 14 are respectively a shift-register group 14a and a shift-register group 14b. Adjacent scan lines G are electrically connected to the shift-register group 14a and the shift-register group 14b respectively. In some other embodiments, the backlight structure 10 may include other numbers of shift-register groups 14. The connection methods between the shift-register groups 14 and each scan line G may be set with reference to the present disclosure.
Optionally, a shift-register group 14 may include two gate drive circuits. One scan line G may be electrically connected to the two gate drive circuits. Accordingly, the drive capability of the scan line G may be improved. In some other embodiments, a shift-register group 14 may include one gate driving circuit, and the present disclosure will not go into details here.
The present disclosure also provides a driving method for a display module. With continuous reference to
The driving method includes:
The display module may have a first display mode and a second display mode. The resolution of the display module in the first display mode is greater than the resolution of the display module in the second display mode. That is, in the first display mode, the display module may display a high-resolution picture, and in the second display mode, the display module may display a low-resolution picture.
In the first display mode, the backlight partitions 11a of the backlight structure 10 may be adjusted such that the quantity of the backlight partitions 11a of the backlight structure 10 is n1, and the area of the backlight partitions 11a of the backlight structure 10 is S1.
In the second display mode, the backlight partition 11b of the backlight structure 10 may be adjusted such that the quantity of the backlight partition 11b of the backlight structure 10 is n2, and the area of the backlight partition 11b of the backlight structure 10 is S2, with n1>n2, S1<S2. That is, the quantity of backlight partitions 11a of the backlight structure 10 in the first display mode may be greater than the quantity of backlight partitions 11b of the backlight structure 10 in the second display mode. Accordingly, the area of each backlight partition 11a in the first display mode may be smaller than the area of each backlight partition 11a in the second display mode.
Specifically, in the driving method of the display module provided by the present disclosure, the area of the backlight partition 11 in the backlight structure 10 may be adjusted according to the display mode of the display module. When the display module displays a high-resolution picture, the backlight structure 10 may be divided into more backlight partitions 11, and thus the area of each backlight partition 11 in the backlight structure 10 may be reduced. Accordingly, at the edge of the picture displayed by the display module, the area of the backlight partition 11 may be relatively small. In this case, even if a light source may exist at the edge of the display screen that does not need a light source, the area of the light source in this part may be small. As such, the halos at the edge of the display screen may be alleviated, and may even be negligible. Accordingly, the difficulty of adjusting the fineness of the high-resolution picture may be reduced, problems such as the halos at the edge of the picture displayed may be alleviated, and the display effect may thus be improved.
With continuous reference to
It should be noted that, in some other embodiments, the light-emitting unit 13 may also be an LED or a Micro-LED. The present disclosure will not go into details here.
In the first display mode, the quantity of the light-emitting units 13 in one backlight partition 11a is N1. In the second display mode, the quantity of the light-emitting units 13 in one backlight partition 11b is N2, with N1<N2. Exemplarily, referring to
Specifically, in the display module provided by the present disclosure, the area of the backlight partition 11 in the backlight structure 10 may be adjusted according to the display mode of the display module. When the display module displays a high-resolution picture, the quantity of the light-emitting units 13 in each backlight partition 11 in the backlight structure 10 may be reduced. Accordingly, the area of each backlight partition 11 in the backlight structure 10 may be decreased. As such, the difficulty of adjusting the fineness of the high-resolution picture may be reduced, problems such as halos at the edge of the picture displayed may be alleviated, and the display effect may thus be improved.
In some embodiments, in the second display mode, some light-emitting units in the backlight partition may not emit light.
Specifically, in one embodiment, the area of the backlight partition 11 in the backlight structure 10 may be adjusted according to the display mode of the display module. When the display module displays a high-resolution picture, the quantity of the light-emitting units 13 in each backlight partition 11 in the backlight structure 10 may be reduced, and the area of each backlight partition 11 in the backlight structure 10 may thus be reduced. Accordingly, the difficulty of adjusting the fineness of the high-resolution picture may be reduced, problems such as halos at the edge of the picture displayed may be alleviated, and the display effect may thus be improved. In addition, in the second display mode, the display module displays a low-resolution picture. When the backlight partition 11b in the backlight structure 10 needs to provide a light source, some light-emitting units 13 in the backlight partition 11b may not emit light. As such, while meeting the resolution requirement of the display screen of the display module, power consumption may be reduced, and device consumption may also be reduced.
With continuous reference to
The backlight structure 10 may further include a plurality of scan lines G extending along the first direction X and a plurality of data lines D extending along the second direction Y. The light-emitting units 13 arranged along the first direction X are electrically connected to a same scan line G. That is, an entire row of light-emitting units 13 arranged along the first direction X is electrically connected to a same scan line G. The light-emitting units 13 arranged along the second direction Y are electrically connected to a same data line D. That is, an entire column of light-emitting units 13 arranged along the second direction Y is electrically connected to a same data line D.
The data lines D may be used to transmit signals to adjust the quantity of the light-emitting units 13 in each backlight partition 11 in the first display mode and in the second display mode. The scan lines G may be used to transmit signals to adjust the quantity of the light-emitting units 13 in each backlight partition 11 in the first display mode and in the second display mode.
Specifically,
In some embodiments, in the second display mode, the ratio of the light-emitting units used for emitting light and the light-emitting units not used for emitting light in the backlight partition may be adjusted by the signals of the data lines and/or the scan lines.
Specifically, with continuous reference to
With continuous reference to
With continuous reference to
With continuous reference to
As discussed above, in the second display mode, the ratio of the light-emitting unit 13a used for emitting light to the light-emitting unit 13b not used for emitting light in the backlight partition 11b may be adjusted through the signals of the data lines D and/or the scan lines G. In addition, the arrangement of the light-emitting units 13a used for emitting light and the light-emitting units 13b not used for emitting light in the backlight partition 11b may be adjusted through the signals of the data lines D and/or the scan lines G.
It should be noted that, in the present disclosure, in the second display mode, when the quantity of the light-emitting units 13 in each backlight partition 11b in the backlight structure 10 is 2×2, 3×2, 2×3, or 4×2, a plurality of arrangements of the light-emitting units 13a used for emitting light and the light-emitting units 13b not used for emitting light in the backlight partition 11b may be achieved through the adjustment of the signals of the data lines D and the scan lines G. In some other embodiments, other signal adjustment methods may also be used. The present disclosure will not go into details here.
In the second display mode, when the quantity of light-emitting units 13 in each backlight partition 11b in the backlight structure 10 is another number, realization of arrangements of the light-emitting units 13a used for emitting light and the light-emitting units 13b not used for emitting light in the backlight partition 11b through the adjustment of signals in the data lines D and the scan lines G may refer to the adjustment of the signals of the data lines D and the scan lines G presented in the present disclosure. The present disclosure will not go into details here.
In some embodiments, in the second display mode, among the data lines electrically connected to the light-emitting units in a same backlight partition, two or more data lines have a same signal. Accordingly, in the second display mode, each backlight partition may include a plurality of light-emitting units.
Exemplarily, with continuous reference to
With continuous reference to
Since adjacent scan lines G are electrically connected to different shift-register groups 14, in some embodiments, in the second display mode, scan enable signals may be simultaneously provided to two or more scan lines G of the scan lines G electrically connected to the light-emitting units 13 in a same backlight partition 11b through different shift-register groups 14.
Exemplarily, with continuous reference to
The backlight structure 10 may also include at two or more shift-register groups 14. Two adjacent scan lines G may be electrically connected to different shift-register groups 14 respectively. That is, the scan lines G in each scan line group may be electrically connected to different shift-register groups 14. Two shift-register groups 14 may simultaneously provide same signals to different scan lines G in a same scan line group that are electrically connected to the two shift-register groups 14. Thus, the signals of the scan lines G in the same scan line group may be same. Accordingly, the difficulty of driving the scan lines G by the shift-register groups 14 may be reduced, the design difficulty of the register groups 14 may be reduced, and the production cost may be decreased.
In one embodiment, the backlight structure 10 includes two shift-register groups 14. In some other embodiments, the backlight structure 10 may include other numbers of shift-register groups 14. The connection methods between the shift-register groups 14 and each scan line G may be set with reference to the present disclosure.
As disclosed, the technical solutions of the present disclosure have the following advantages.
In the display module provided by the present disclosure, the area of the backlight partition in the backlight structure may be adjusted according to the display mode of the display module. When the display module displays a high-resolution picture, the backlight structure may be divided into more backlight partitions, and thus the area of each backlight partition in the backlight structure may be reduced. Accordingly, at the edge of the picture displayed by the display module, the area of the backlight partition may be relatively small. As such, at the edge of the picture displayed, even if a light source may exist at the part that does not need a light source, the area of the part of the light source may be small. Thus, the halos at the edge of the picture displayed may be reduced, and may even be negligible. Accordingly, the difficulty of adjusting the fineness of high-resolution pictures may be decreased, problems such as halos on the edges of pictures displayed may be reduced, and display effects may thus be improved.
The embodiments disclosed herein are exemplary only and not limiting the scope of the present disclosure. Various combinations, alternations, modifications, equivalents, or improvements to the technical solutions of the disclosed embodiments may be obvious to those skilled in the art. Without departing from the spirit and scope of this disclosure, such combinations, alternations, modifications, equivalents, or improvements to the disclosed embodiments are encompassed within the scope of the present disclosure.
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