Display module, driving method thereof, and display device

Abstract

The application discloses a display module, a driving method thereof and a display device. The display module comprises a display panel, a backlight panel and a driving signal terminal. The display panel comprises a driving signal line and a sub-pixel unit. The driving signal line is electrically connected with the sub-pixel unit. The first end of the driving signal line is electrically connected with the driving signal terminal. The backlight panel comprises a plurality of light emitting units. In the thickness direction of the display module, the sub-pixel unit and the corresponding light emitting unit at least partially overlap. In a frame time, after the driving signal terminal starts to send the driving signal to the sub-pixel unit and delays for a preset time, the corresponding light emitting unit of the sub-pixel unit starts to emit light. According to the embodiment of the application, the power consumption is reduced, and the performance of the display product is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display module, a driving method thereof and a display device. BACKGROUND

[0002] With the continuous development of electronic devices, the structure of display products is becoming more and more diversified. Non-self-luminous display panels, such as liquid crystal display panels, do not need to set up complex circuit structures, so they are applied to various display products. Such display products need a backlight module to provide backlight for the non-self-luminous display panel.

[0003] However, with the continuous updating of display technology, users have higher and higher performance requirements for display products. For example, users hope that display products have lower power consumption.

[0004] Therefore, how to reduce the power consumption of display products is a research direction of those skilled in the art. SUMMARY

[0005] The embodiments of the present application provide a display module, a driving method thereof and a display device, which are beneficial to reduce power consumption and improve the performance of display products.

[0006] In a first aspect, the embodiments of the present application provide a display module, comprising: a display panel comprising a driving signal line and a sub-pixel unit, a plurality of sub-pixel units being electrically connected to the driving signal line, and a first end of the driving signal line being electrically connected to a driving signal end; a backlight panel comprising a plurality of light emitting units, in a thickness direction of the display module, the sub-pixel unit and its corresponding light emitting unit at least partially overlapping; within a frame time, after the driving signal end starts to send a driving signal to the sub-pixel unit and delays for a preset time length, the corresponding light emitting unit of the sub-pixel unit starts to emit light.

[0007] Based on the same inventive concept, in a second aspect, the embodiments of the present application provide a driving method of a display module, wherein the display module comprises: a display panel comprising a driving signal line and a sub-pixel unit, a plurality of sub-pixel units being electrically connected to the driving signal line, and a first end of the driving signal line being electrically connected to a driving signal end; a backlight panel comprising a plurality of light emitting units, in a thickness direction of the display module, the sub-pixel unit and its corresponding light emitting unit at least partially overlapping; the driving method of the display module comprises: within a frame time, after the driving signal end starts to send a driving signal to the sub-pixel unit and delays for a preset time length, the corresponding light emitting unit of the sub-pixel unit starts to emit light.

[0008] Based on the same inventive concept, in a third aspect, the embodiments of the present application provide a display device comprising the display module of the first aspect.

[0009] At the starting moment of the driving signal sent from the driving signal end, the sub-pixel unit cannot immediately complete the response, and thus this period of time belongs to the non-display time of the sub-pixel unit. The display module, the driving method thereof and the display device provided in the embodiments of the present application can make the light-emitting unit corresponding to the sub-pixel unit not emit light immediately after the starting moment of the driving signal sent from the driving signal end, but start to emit light after the starting moment of the driving signal sent from the driving signal end and a preset time delay, which can be beneficial to reduce the power consumption of the display module. BRIEF DESCRIPTION OF DRAWINGS

[0010] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments thereof as taken in conjunction with the accompanying drawings, in which like references denote like features, and in which:

[0011] Figure 1 FIG. 1 shows a structural schematic diagram of a display module provided in an embodiment of the present application;

[0012] Figure 2 FIG. 2 shows a top view structural schematic diagram of a display panel in the display module provided in an embodiment of the present application;

[0013] Figure 3 FIG. 3 shows another top view structural schematic diagram of a display panel in the display module provided in an embodiment of the present application;

[0014] Figure 4 FIG. 4 shows another structural schematic diagram of a display panel in the display module provided in an embodiment of the present application;

[0015] Figure 5 FIG. 5 shows yet another top view structural schematic diagram of a display panel in the display module provided in an embodiment of the present application;

[0016] Figure 6 FIG. 6 shows a sectional structural schematic diagram of a display panel in the display module provided in an embodiment of the present application;

[0017] Figure 7 FIG. 7 shows a timing schematic diagram of the display module provided in an embodiment of the present application;

[0018] Figure 8 FIG. 8 shows another timing schematic diagram of the display module provided in an embodiment of the present application;

[0019] Figure 9 FIG. 9 shows a load schematic diagram of the display module provided in an embodiment of the present application;

[0020] Figure 10 FIG. 10 shows yet another timing schematic diagram of the display module provided in an embodiment of the present application;

[0021] Figure 11Another timing diagram of the display module provided by the embodiment of the present application is shown.

[0022] Figure 12 A flow diagram of a driving method of the display module provided by the embodiment of the present application is shown.

[0023] Figure 13 A structure diagram of the display device provided by the embodiment of the present application is shown.

[0024] Legend of reference signs:

[0025] 100, display module;

[0026] 10, display panel;

[0027] 11, driving signal line; 111, data line; 112, scanning line;

[0028] 12a, pixel unit group; 12, sub-pixel unit;

[0029] 13, driving signal end; 131, data signal end; 132, scanning signal end;

[0030] 20, backlight panel;

[0031] 21, light emitting unit;

[0032] 101, array substrate; 102, color film substrate;

[0033] 1000, display device. DETAILED DESCRIPTION

[0034] The features and exemplary embodiments of various aspects of the present application will be described in detail below, in order to make the purposes, technical solutions and advantages of the present application more clear and apparent, the present application will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are configured only to explain the present application, and are not configured to limit the present application. The present application can be implemented without some of these specific details by those skilled in the art. The following description of the embodiments is merely to provide a better understanding of the present application by showing examples of the present application.

[0035] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0036] It should be understood that when describing the structure of a component, when one layer, one region is referred to as being "on" or "above" another layer, another region, it can mean being directly on or above the other layer, the other region, or other layers or regions can be included therebetween. And if the component is turned over, the layer, the region will be "under" or "below" the other layer, the other region.

[0037] It should be understood that the term "and / or" used herein only describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B, which can represent three cases of A existing alone, A and B existing together, and B existing alone. In addition, the character " / " in the present document generally represents an "or" relationship between the front and rear associated objects.

[0038] In the embodiments of the present application, the term "electrically connected" can mean that two components are directly electrically connected, or can mean that two components are electrically connected via one or more other components. The term "drive" can mean "control" or "operate". The term "part" can mean "partial". The term "end" can mean "end section" or "end edge".

[0039] Various modifications and changes can be made to the present application in light of the above description without departing from the spirit or scope of the present application. Accordingly, the present application is intended to embrace all modifications and alterations of this application that fall within the scope of the corresponding claims (claims for the technical solutions protected by the present application) and their equivalents. It should be noted that the embodiments provided by the present application can be combined with each other as long as they do not contradict each other.

[0040] The present application provides a display module and a driving method thereof, and a display device, which will be described below with reference to the accompanying drawings.

[0041] As Figures 1 to 5As shown, the display module 100 includes a display panel 10 and a backlight panel 20. The display panel 10 may be located on one side of the light-emitting surface of the backlight panel 20.

[0042] The display panel 10 may include drive signal lines 11 and sub-pixel units 12. Multiple sub-pixel units 12 may be arranged in an array along a first direction X and a second direction Y. The first direction X and the second direction Y intersect. For example, the first direction X may be a row direction, and the second direction Y may be a column direction.

[0043] The driving signal line 11 may include multiple lines, and multiple sub-pixel units 12 may be electrically connected on one driving signal line 11, and the first end of the driving signal line 11 is electrically connected to the driving signal terminal 13.

[0044] For example, the drive signal line 11 may include at least one of a data line and a scan line.

[0045] As an example, such as Figure 2 As shown, the drive signal line 11 may include a data line 111, and the drive signal terminal 13 may include a data signal terminal 131, which is used to provide a data signal. The first end of the data line 111 is electrically connected to the data signal terminal 131, and the data signal provided by the data signal terminal 131 can be transmitted to multiple sub-pixel units 12 through the data line 111.

[0046] As another example, such as Figure 3 or Figure 4 As shown, the driving signal line 11 may include a scan line 112, and the driving signal terminal 13 may include a scan signal terminal 132, which is used to provide a scan signal. The display panel may include a scan driving circuit, and the scan signal terminal 132 is the output terminal of the scan driving circuit. The first end of the scan line 112 is electrically connected to the scan signal terminal 132, and the scan signal provided by the scan signal terminal 132 can be transmitted to multiple sub-pixel units 12 through the scan line 112.

[0047] For example, the scan driving circuit may include multiple cascaded shift registers, which can sequentially output valid scan signals to achieve line-by-line scanning of multiple sub-pixel units.

[0048] For example, such as Figure 3 As shown, scan line 112 can be electrically connected to scan signal terminal 132 at only one end; this can be called single-ended drive. Alternatively, as... Figure 4 As shown, the two ends of the scan line 112 are electrically connected to the scan signal terminal 132, which can be called the dual-end drive method.

[0049] As yet another example, such as Figure 5As shown, the driving signal line 11 can include a data line 111 and a scan line 112, and the driving signal terminal 13 can include a data signal terminal 131 and a scan signal terminal 132, the data signal terminal 131 being configured to provide a data signal, and the scan signal terminal 132 being configured to provide a scan signal.

[0050] It is to be understood that Figure 1 The backlight panel 20 includes a plurality of light emitting units 21. Exemplarily, the light emitting unit 21 can include a miniled. In the thickness direction of the display module, the sub-pixel unit 12 and the corresponding light emitting unit 21 at least partially overlap.

[0051] It is to be understood that Figure 1 As shown, the sub-pixel units 12 of the display panel can be divided into a plurality of pixel unit groups 12a, and one pixel unit group 12a can include one or more sub-pixel units 12. In the thickness direction of the display module, one pixel unit group 12a and one light emitting unit 21 overlap.

[0052] For example, the light emitting unit 21 is a micro led, and one pixel unit group 12a can include one sub-pixel unit 12. For another example, the light emitting unit 21 is a miniled, and one pixel unit group 12a can include a plurality of sub-pixel units 12.

[0053] Of course, the correspondence between the sub-pixel unit 12 and the light emitting unit 21 can also be arranged in other manners, which is not limited in the present application. Exemplarily, as shown in Figure 6 The display panel 10 can include a display medium C, which can be located between the array substrate 101 and the color filter substrate 102. The sub-pixel unit can include a pixel electrode E1, a common electrode E2, and a pixel circuit (not shown in the figure). Figure 5 The electric field formed by the pixel electrode E1 and the common electrode E2 can be used to control the light transmittance of the display medium C. The display medium C can include liquid crystal. The pixel electrode E1 can be connected to the data signal under the control of the pixel circuit, and the display medium C has different light transmittances under different data signals connected to the pixel electrode E1.

[0054] Under the control of the pixel electrode E1, the common electrode E2, and the pixel circuit, the display medium C can be used to transmit the light from the backlight area 21. Under the condition that the brightness of the light emitting unit 21 is constant, the greater the light transmittance of the display medium C, the brighter the brightness of the display panel.

[0055] Exemplarily, in one frame time, a plurality of scan lines 112 can sequentially provide an enable signal, so as to scan a plurality of rows of sub-pixel units 12 row by row; and any one data line 111 can provide a data signal row by row, so as to drive a plurality of rows of sub-pixel units 12 row by row.

[0056] Within one frame, after the drive signal terminal 13 sends a drive signal to the sub-pixel unit 12 and after a preset delay, the light-emitting unit 21 corresponding to the sub-pixel unit 12 begins to emit light.

[0057] For example, please refer to the reference. Figure 1 and Figure 7 For example, for the i-th sub-pixel unit 12, after the driving signal terminal 13 sends a driving signal to the i-th sub-pixel unit 12 and delays for a preset time Ti, the light-emitting unit 21 corresponding to the i-th sub-pixel unit 12 starts to emit light. It is understood that, in the embodiments of this application, the light-emitting unit 21 in the backlight panel may no longer start to emit light at the beginning of a frame, but may emit light after a preset time delay.

[0058] At the beginning of the drive signal output from the drive signal terminal 13, the sub-pixel unit 12 cannot immediately complete the response; therefore, this period belongs to the non-display time of the sub-pixel unit 12. In this embodiment, from the beginning of the drive signal output from the drive signal terminal 13, the light-emitting unit 21 corresponding to the sub-pixel unit 12 no longer emits light immediately, but starts to emit light after a preset delay following the start of the drive signal output from the drive signal terminal 13. This helps to reduce the power consumption of the display module.

[0059] For example, the material of the transistor in the sub-pixel unit 12 may include A-si. Compared to low-temperature polysilicon (LTPS), A-si type transistors have the advantage of low cost.

[0060] In some embodiments, the preset duration of the delay corresponding to the light-emitting unit 21 is positively correlated with the path consumption duration of the driving signal; the path consumption duration of the driving signal is positively correlated with the load of the driving signal line 11.

[0061] For example, in an A-si type display panel, the electron mobility of the transistors is relatively high, resulting in relatively slow charging. Therefore, the load (RC loading) on ​​the drive signal line 11 is relatively large. From the time the drive signal is emitted from the drive signal terminal 13 to its transmission to the sub-pixel unit 12, a relatively large amount of time is wasted on the transmission path. The longer the path time of the drive signal, the longer the preset delay time corresponding to the light-emitting unit 21 can be; conversely, the shorter the path time of the drive signal, the shorter the preset delay time corresponding to the light-emitting unit 21 can be.

[0062] In some embodiments, the display panel 10 includes a liquid crystal display panel, and the preset duration of the delay corresponding to the light-emitting unit 21 is positively correlated with the response duration of the liquid crystal.

[0063] After the sub-pixel unit 12 is charged, the corresponding liquid crystal of the sub-pixel unit 12 cannot complete the flip immediately, and the liquid crystal needs a certain response time, which is also the non-emitting time of the sub-pixel unit 12. The longer the response time of the liquid crystal is, the longer the preset time corresponding to the delay of the light-emitting unit 21 can be. Conversely, the shorter the response time of the liquid crystal is, the shorter the preset time corresponding to the delay of the light-emitting unit 21 can be.

[0064] For example, the response time of the liquid crystal corresponding to different sub-pixel units 12 can be the same.

[0065] In some embodiments, the preset time corresponding to the delay of the light-emitting unit 21 can be equal to the sum of the path consumption time τ of the driving signal and the response time ct of the liquid crystal. It should be noted that "equal to" herein can allow a certain error. In addition, Figure 7 In some embodiments, τi represents the path consumption time of the driving signal of the i-th sub-pixel unit 12, and τj represents the path consumption time of the driving signal of the j-th sub-pixel unit 12.

[0066] In some embodiments, the display module can include a storage module that stores a plurality of preset time delays corresponding to the light-emitting units 21. In this way, when displaying, the pre-stored delay time can be directly called to control the light-emitting of the light-emitting units 21.

[0067] For example, simulation experiments can be performed on the display module to determine the delay time corresponding to the light-emitting unit 21.

[0068] In some embodiments, each light-emitting unit 21 can be individually controlled, so that the light-emitting delay time corresponding to each light-emitting unit 21 can be independently set. For example, referring to Figure 5 and Figure 7 The i-th sub-pixel unit 12(i) and the j-th sub-pixel unit 12(j) are electrically connected to the same driving signal line 11, and i≠j. In order to distinguish, the light-emitting unit 21 corresponding to the i-th sub-pixel unit 12(i) is referred to as the i-th light-emitting unit 21(i), and the light-emitting unit 21 corresponding to the j-th sub-pixel unit 12(i) is referred to as the j-th light-emitting unit 21(j). In the thickness direction of the display module, the i-th sub-pixel unit 12(i) and the i-th light-emitting unit 21(i) can at least partially overlap, and the j-th sub-pixel unit 12(i) and the j-th light-emitting unit 21(j) can at least partially overlap.

[0069] Figure 5 For example, the i-th sub-pixel unit 12(i) and the j-th sub-pixel unit 12(j) are electrically connected to the same data line 111. In other examples, the i-th sub-pixel unit 12(i) and the j-th sub-pixel unit 12(j) can be electrically connected to the same scan line 112.

[0070] In a frame time, after the driving signal end 13 sends a driving signal to the i-th sub-pixel unit 12(i) and delays for a preset time length Ti, the light-emitting unit 21(i) corresponding to the i-th sub-pixel unit 12(i) starts to emit light. After the driving signal end 13 sends a driving signal to the j-th sub-pixel unit 12(j) and delays for a preset time length Tj, the light-emitting unit 21(j) corresponding to the j-th sub-pixel unit 12(j) starts to emit light. Ti≠Tj.

[0071] In the embodiments of the present application, the light-emitting delay time lengths of the light-emitting units corresponding to different sub-pixel units 12 on the same driving signal line 11 are different, so that the light-emitting units corresponding to sub-pixel units 12 at different positions can be flexibly controlled.

[0072] For example, the path consumption time lengths of the driving signals of different sub-pixel units 12 on the same driving signal line 11 are different. For example, the path consumption time length of the driving signal of a sub-pixel unit 12 far away from the driving signal end 13 is relatively long, and the path consumption time length of the driving signal of a sub-pixel unit 12 close to the driving signal end 13 is relatively short. The light-emitting delay time lengths of the light-emitting units corresponding to different sub-pixel units 12 on the same driving signal line 11 are different, so as to match the path consumption time lengths of the driving signals of different sub-pixel units 12, thereby facilitating flexible matching of different requirements and reducing the power consumption of the display product.

[0073] In some embodiments, please refer to Figure 5 and Figure 8 The m-th sub-pixel unit 12(m) to the n-th sub-pixel unit 12(n) are connected to the same driving signal line 11, and m Figure 5 For example, the m-th sub-pixel unit 12(m) to the n-th sub-pixel unit 12(n) are connected to the same data line 111 in the above example. In other examples, the m-th sub-pixel unit 12(m) to the n-th sub-pixel unit 12(n) can be connected to the same scan line 112.

[0074] In a frame time, the preset time lengths of the delays of the multiple light-emitting units 21 corresponding to the m-th sub-pixel unit 12(m) to the n-th sub-pixel unit 12(n) are all Tmn.

[0075] As an example, the m-th sub-pixel unit 12(m) to the n-th sub-pixel unit 12(n) can correspond to the m-th light-emitting unit 21(m) to the n-th light-emitting unit 21(n), respectively. In this case, the total number of sub-pixel units and the total number of light-emitting units can be equal and one-to-one corresponding.

[0076] As another example, the mth sub-pixel unit 12(m) to the nth sub-pixel unit 12(n) are a total of m-n+1 sub-pixel units, and the number of the light emitting units corresponding to the mth sub-pixel unit 12(m) to the nth sub-pixel unit 12(n) can be less than m-n+1. In this case, the total number of the sub-pixel units is greater than the total number of the light emitting units, and one light emitting unit can correspond to multiple sub-pixel units, and in the thickness direction of the display module, one light emitting unit can overlap multiple sub-pixel units.

[0077] In the embodiments of the present application, the multiple light emitting units 21 corresponding to the mth sub-pixel unit 12(m) to the nth sub-pixel unit 12(n) can share one delay time Tmn, which can reduce the complexity of the driving timing, thereby reducing the cost of the driving chip. Moreover, one delay time Tmn can be stored for use by the multiple light emitting units 31, which can reduce the occupation of the storage space.

[0078] In some embodiments, please continue to refer to Figure 5 and Figure 8 In a frame of picture time, the multiple light emitting units 21 corresponding to the mth sub-pixel unit 12(m) to the nth sub-pixel unit 12(n) start to emit light at the same time.

[0079] In the embodiments of the present application, the multiple light emitting units 21 corresponding to the mth sub-pixel unit 12(m) to the nth sub-pixel unit 12(n) start to emit light at the same time, which can further reduce the complexity of the driving timing, thereby reducing the cost of the driving chip.

[0080] It can be understood that, in the case that the multiple light emitting units 21 corresponding to the mth sub-pixel unit 12(m) to the nth sub-pixel unit 12(n) share one delay time Tmn, and the multiple light emitting units 21 corresponding to the mth sub-pixel unit 12(m) to the nth sub-pixel unit 12(n) start to emit light at the same time, the starting time of the delay of the multiple light emitting units 21 corresponding to the mth sub-pixel unit 12(m) to the nth sub-pixel unit 12(n) is the same.

[0081] In some embodiments, in a frame of picture time, the driving signal end 13 sends driving signals to the mth to the nth sub-pixel unit in turn, which means that the driving signal end 13 first sends a driving signal to the mth sub-pixel unit 12(m), then sends a driving signal to the m+1th sub-pixel unit 12, and finally sends a driving signal to the nth sub-pixel unit 12(n). It can be understood that the driving signal end 13 sends driving signals to the mth to the nth sub-pixel unit at different times.

[0082] After the driving signal end 13 sends the driving signal to the mth sub-pixel unit 12(m) and delays for a preset time length Tmn, the multiple light emitting units 21 corresponding to the mth to nth sub-pixel units start to emit light.

[0083] In this way, the starting time of the delay of the multiple light emitting units 21 corresponding to the mth to nth sub-pixel units 12(m) to 12(n) is the starting time of the driving signal sent by the driving signal end 13 to the mth sub-pixel unit 12(m). This can also avoid the situation that the driving signal of the mth sub-pixel unit 12(m) has been written, but the corresponding light emitting unit 21 has not emitted light, thereby affecting the display.

[0084] In some embodiments, the preset time length Tmn of the delay of the multiple light emitting units corresponding to the mth to nth sub-pixel units is related to the average of the path consumption time lengths of the multiple driving signals of the mth to nth sub-pixel units.

[0085] Please continue to refer to Figure 5 and Figure 8 The path consumption time length of the driving signal corresponding to the mth sub-pixel unit 12(m) is τ m The path consumption time length of the driving signal corresponding to the mth+1 sub-pixel unit 12(m+1) is τ m+1 The path consumption time length of the driving signal corresponding to the nth sub-pixel unit 12(n) is τ n The path consumption time lengths τ m , τ m+1 , …, τ n may be different. The preset time length Tmn is related to the average of τ m , τ m+1 , …, τ n . For example, the preset time length Tmn is equal to the sum of the average of τ m , τ m+1 , …, τ n and the liquid crystal response time length.

[0086] In the embodiments of the present application, the preset time length Tmn is related to the average of the path consumption time lengths of the multiple driving signals of the mth to nth sub-pixel units, so that the path consumption of the multiple driving signals of the mth to nth sub-pixel units can be considered, thereby more favorably reducing power consumption.

[0087] In some embodiments, the second end of the driving signal line 11 is an end away from the driving signal end 13. As shown in Figure 2 , the first end of the driving signal line 11 can be located below, and the second end of the driving signal line 11 can be located above. Alternatively, as shown in Figure 3As shown, the first end of the driving signal line 11 can be located at the left, and the second end of the driving signal line 11 can be located at the right. Alternatively, as shown in Figure 4 As shown, the left and right ends of the driving signal line 11 are both connected with the driving signal end 13, and the left and right ends of the driving signal line 11 are both the first end, and the middle of the driving signal line 11 is the second end.

[0088] In a frame of picture, in the direction from the second end to the first end of the driving signal line 11, the preset time length of the delay of the multiple light emitting units corresponding to the multiple sub-pixel units 12 on the same driving signal line 11 presents a decreasing trend.

[0089] For example, as shown in Figure 9 As shown, in the direction from the second end to the first end of the driving signal line 11, that is, in the direction from the far end to the near end, the farther from the driving signal end 13, the greater the RC loading of the driving signal line 11, and thus the greater the path consumption time length of the driving signal to the farther place; the closer to the driving signal end 13, the smaller the RC loading of the driving signal line 11, and thus the smaller the path consumption time length of the driving signal to the closer place.

[0090] In the direction from the second end to the first end of the driving signal line 11, the RC loading of the driving signal line 11 presents a decreasing trend, and thus the path consumption time length of the driving signal presents a decreasing trend, and the time length of the delayed light emission of the corresponding light emitting unit is also set to present a decreasing trend, which can be more conducive to reducing power consumption.

[0091] As an example, please refer to Figure 2 and Figure 10 For example, the driving signal line 11 includes a data line 111, wherein the sub-pixel unit 12(A), the sub-pixel unit 12(B), and the sub-pixel unit 12(C) are connected with the same data line 111 and sequentially close to the data signal end 131, the sub-pixel unit 12(A), the sub-pixel unit 12(B), and the sub-pixel unit 12(C) correspond to the light emitting unit 21(A), the light emitting unit 21(B), and the light emitting unit 21(C) respectively, the path consumption time length of the driving signal corresponding to the sub-pixel unit 12(A), the sub-pixel unit 12(B), and the sub-pixel unit 12(C) gradually decreases, and the time length Ta, Tb, and Tc of the light emission delay corresponding to the light emitting unit 21(A), the light emitting unit 21(B), and the light emitting unit 21(C) gradually decreases.

[0092] In a frame of picture, for the light emitting unit corresponding to a single column, the light emission time length that can be saved is at least the sum of the delay time lengths of the multiple light emitting units in the column.

[0093] As another example, please refer to Figure 3 and Figure 11Taking the drive signal line 11 including the scan line 112 as an example, sub-pixel units 12(D), 12(E), and 12(F) are connected to the same scan line 112 and are successively away from the scan signal end 132. Sub-pixel units 12(D), 12(E), and 12(F) correspond to light-emitting units 21(D), 21(E), and 21(F), respectively. The path consumption time of the drive signal corresponding to sub-pixel units 12(D), 12(E), and 12(F) gradually increases, and the light emission delay times Td, Te, and Tf corresponding to light-emitting units 21(D), 21(E), and 21(F) gradually increase.

[0094] In a single frame, for a single row of light-emitting units, the light-emitting time that can be saved is at least the sum of the delay times of multiple light-emitting units in that row.

[0095] In some embodiments, within a frame time, the preset duration of the delay of the plurality of light-emitting units 21 corresponding to the plurality of sub-pixel units 12 on the same driving signal line 11 in the direction from the second end to the first end of the driving signal line 11 can be linearly reduced.

[0096] Of course, a linear decrease is just one example; other types of changes may also occur in other examples.

[0097] Based on the same inventive concept, embodiments of this application also provide a driving method for a display module.

[0098] The display module includes: a display panel, including a driving signal line and sub-pixel units, wherein multiple sub-pixel units are electrically connected to the driving signal line, and a first end of the driving signal line is electrically connected to a driving signal terminal; and a backlight panel, including multiple light-emitting units, wherein in the thickness direction of the display module, the sub-pixel units and their corresponding light-emitting units at least partially overlap.

[0099] like Figure 12 As shown, the driving method for the display module provided in this application embodiment includes step 120.

[0100] Step 120: Within one frame of video time, after the drive signal is sent to the sub-pixel unit from the drive signal terminal and a preset delay is reached, the light-emitting unit corresponding to the sub-pixel unit is controlled to start emitting light.

[0101] At the starting moment of the driving signal sent from the driving signal end, the sub-pixel unit cannot immediately complete the response, and thus this period of time belongs to the non-emitting time of the sub-pixel unit. In the embodiment of the present application, after the starting moment of the driving signal sent from the driving signal end, the corresponding emitting unit of the sub-pixel unit no longer emits light immediately, but starts to emit light after the starting moment of the driving signal sent from the driving signal end and a preset time delay. In this way, the power consumption of the display module can be reduced.

[0102] In some embodiments, the i th< sub-pixel unit and the j th< sub-pixel unit are connected to the same driving signal line, i≠j;

[0103] The driving method of the display module provided in the embodiment of the present application comprises:

[0104] In a frame time, after the starting moment of the driving signal sent from the driving signal end to the i th< sub-pixel unit and a preset time delay Ti, the corresponding emitting unit of the i th< sub-pixel unit starts to emit light; and after the starting moment of the driving signal sent from the driving signal end to the j th< sub-pixel unit and a preset time delay Tj, the corresponding emitting unit of the j th< sub-pixel unit starts to emit light.

[0105] Ti≠Tj.

[0106] In some embodiments, the m th< to n th< sub-pixel units are connected to the same driving signal line, m

[0107] The driving method of the display module provided in the embodiment of the present application comprises:

[0108] In a frame time, the preset time delay of the multiple emitting units corresponding to the m th< to n th< sub-pixel units is Tmn.

[0109] In some embodiments, the preset time delay is positively correlated with the path consumption time of the driving signal; and the path consumption time of the driving signal is positively correlated with the load of the driving signal line.

[0110] In some embodiments, the display panel comprises a liquid crystal display panel; and the preset time delay is positively correlated with the response time of the liquid crystal.

[0111] In some embodiments, the driving signal line comprises at least one of a data line and a scanning line.

[0112] In some embodiments, in a frame time, the multiple emitting units corresponding to the m th< to n th< sub-pixel units start to emit light at the same moment.

[0113] In some embodiments, the driving signal end sequentially sends driving signals to the mth to nth sub-pixel units within a frame time, and the plurality of light emitting units corresponding to the mth to nth sub-pixel units start emitting light after the driving signal end sends the driving signal to the mth sub-pixel unit and delays for a preset time Tmn.

[0114] In some embodiments, the preset time of the delay of the plurality of light emitting units corresponding to the mth to nth sub-pixel units is related to the average of the path consumption time of the plurality of driving signals of the mth to nth sub-pixel units.

[0115] In some embodiments, the second end of the driving signal line is an end away from the driving signal end.

[0116] In some embodiments, within a frame time, the preset time of the delay of the plurality of light emitting units corresponding to the plurality of sub-pixel units on the same driving signal line decreases in the direction from the second end to the first end.

[0117] In some embodiments, within a frame time, the preset time of the delay of the plurality of light emitting units corresponding to the plurality of sub-pixel units on the same driving signal line decreases linearly in the direction from the second end to the first end.

[0118] In some embodiments, the display module includes a storage module that stores the preset time of the delay of the plurality of light emitting units.

[0119] Based on the same inventive concept, the present application also provides a display device including the display panel provided by the present application. Please refer to Figure 13 , Figure 13 is a structural schematic diagram of a display device provided by an embodiment of the present application. Figure 13 The display device 1000 provided by the present application includes the display module 100 provided by any of the above embodiments of the present application. Figure 13 The embodiments only take a mobile phone as an example to describe the display device 1000. It can be understood that the display device provided by the embodiments of the present application can be a wearable product, a computer, a television, a vehicle-mounted display device, or other display devices with display functions. The present application does not specifically limit this. The display device provided by the embodiments of the present application has the beneficial effects of the display panel provided by the embodiments of the present application. For specific descriptions of the display panel, please refer to the specific descriptions of the display panel in the above embodiments. The present embodiment will not be described here.

[0120] In accordance with the embodiments of the application described above, these embodiments are not meant to be all-inclusive or limiting of the scope of the application. It will be apparent to those having skill in the art that many more embodiments that are apparent in light of the above description are suitable for use with the present application. It is therefore contemplated to be within the scope of the application to depart from these specific embodiments. The description is thus to be construed in view of the claims and all their equivalents.

Claims

1. A display module, characterized in that, include: The display panel includes a driving signal line and sub-pixel units. Multiple sub-pixel units are electrically connected to the driving signal line, and a first end of the driving signal line is electrically connected to a driving signal terminal. The backlight panel includes multiple light-emitting units; Within one frame, after the drive signal terminal sends a drive signal to the sub-pixel unit and a preset delay occurs, the light-emitting unit corresponding to the sub-pixel unit begins to emit light. In the thickness direction of the display module, the sub-pixel unit and its corresponding light-emitting unit at least partially overlap. The i-th sub-pixel unit and the j-th sub-pixel unit are electrically connected to the same driving signal line, i ≠ j; Within one frame, after the driving signal terminal sends a driving signal to the i-th sub-pixel unit and delays for a preset time Ti, the light-emitting unit corresponding to the i-th sub-pixel unit starts to emit light. After the driving signal terminal sends a driving signal to the j-th sub-pixel unit and delays for a preset time Tj, the light-emitting unit corresponding to the j-th sub-pixel unit starts to emit light. Ti≠Tj.

2. The display module according to claim 1, characterized in that, The preset duration is positively correlated with the path consumption time of the drive signal; the path consumption time of the drive signal is positively correlated with the load of the drive signal line.

3. The display module according to claim 1, characterized in that, The sub-pixel unit display panel includes a liquid crystal display panel; The preset duration is positively correlated with the response duration of the liquid crystal.

4. The display module according to claim 1, characterized in that, The drive signal lines include at least one of data lines and scan lines.

5. The display module according to claim 1, characterized in that, The m-th to n-th sub-pixel units are electrically connected to the same driving signal line, where m < n; Within one frame, the preset duration of the delay of the multiple light-emitting units corresponding to the m-th to n-th sub-pixel units is Tmn.

6. The display module according to claim 5, characterized in that, Within one frame, the multiple light-emitting units corresponding to the m-th to n-th sub-pixel units begin to emit light at the same time.

7. The display module according to claim 6, characterized in that, Within one frame, the driving signal terminal sequentially sends driving signals to the m-th to n-th sub-pixel units. After the driving signal terminal starts sending driving signals to the m-th sub-pixel unit and is delayed for a preset time Tmn, the plurality of light-emitting units corresponding to the m-th to n-th sub-pixel units begin to emit light.

8. The display module according to claim 5, characterized in that, The preset duration of the delay of the plurality of light-emitting units corresponding to the m-th to n-th sub-pixel units is related to the average path consumption duration of the plurality of driving signals of the m-th to n-th sub-pixel units.

9. The display module according to claim 1, characterized in that, The second end of the drive signal line is the end that is away from the drive signal end; Within one frame, in the direction from the second end to the first end, the preset duration of the delay of the multiple light-emitting units corresponding to the multiple sub-pixel units on the same driving signal line shows a decreasing trend.

10. The display module according to claim 9, characterized in that, Within one frame, in the direction from the second end to the first end, the preset duration of the delay of the multiple light-emitting units corresponding to the multiple sub-pixel units on the same driving signal line decreases linearly.

11. The display module according to claim 1, characterized in that, The display module includes a storage module that stores preset delay durations corresponding to the plurality of light-emitting units.

12. A display device, characterized in that, Includes the display module as described in any one of claims 1 to 11.

13. A driving method for a display module, characterized in that, The display module includes: The display panel includes a driving signal line and sub-pixel units. Multiple sub-pixel units are electrically connected to the driving signal line, and a first end of the driving signal line is electrically connected to a driving signal terminal. The backlight panel includes multiple light-emitting units, and in the thickness direction of the display module, the sub-pixel unit and its corresponding light-emitting unit at least partially overlap; The driving method includes: Within one frame, after the drive signal terminal sends a drive signal to the sub-pixel unit and delays for a preset time, the light-emitting unit corresponding to the sub-pixel unit is controlled to start emitting light. The i-th sub-pixel unit and the j-th sub-pixel unit are electrically connected to the same driving signal line, i ≠ j; The driving method includes: Within one frame, after the driving signal terminal sends a driving signal to the i-th sub-pixel unit and delays for a preset time Ti, the light-emitting unit corresponding to the i-th sub-pixel unit is controlled to start emitting light. After the driving signal terminal sends a driving signal to the j-th sub-pixel unit and delays for a preset time Tj, the light-emitting unit corresponding to the j-th sub-pixel unit is controlled to start emitting light. Ti≠Tj.

14. The method according to claim 13, characterized in that, The m-th to n-th sub-pixel units are electrically connected to the same driving signal line, where m < n; The driving method includes: Within one frame, the preset duration for controlling the delay of the multiple light-emitting units corresponding to the m-th to n-th sub-pixel units is Tmn.

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