A display panel, a driving method of the display panel, and a display device

Abstract

Embodiments of the present application disclose a display panel, a driving method of the display panel and a display device, which comprise a plurality of pixel regions, each of the pixel regions comprises at least one minimum repeating region, the minimum repeating region comprises a transmission area and a light emitting element setting area, the transmission area is provided with a transmission rate adjusting structure, and the light emitting element setting area is provided with a light emitting element, and a display mode of the display panel comprises a first display mode, in the first display mode, the transmission rate of the transmission area is adjusted according to the set brightness of the display panel and whether the light emitting element of the pixel region emits light, through the technical scheme, in the first display mode, when the light emitting element of the pixel region emits light, the transmission rate of the transmission area of the pixel region is adjusted according to the set brightness of the display panel, so that the display contrast of the pixel region in which the light emitting element emits light is improved, and the display effect of the display panel is improved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of display, and in particular, to a display panel, a driving method of the display panel and a display device. BACKGROUND

[0002] The display panel in the prior art is usually a device used in a specific application scenario, such as transparent display or non-transparent display, and cannot realize both transparent display and non-transparent display in the same display panel, which limits the full-function application in different scenarios. Moreover, when transparent display is realized, although a certain degree of transparency is achieved, the display contrast is low, resulting in poor display effect of transparent display. SUMMARY

[0003] Embodiments of the present application provide a display panel, a driving method of the display panel and a display device. The transmittance of the transmittance region is adjusted according to the set brightness of the display panel and whether the light emitting element of the pixel region emits light, so as to improve the display contrast of the pixel region where the light emitting element emits light and improve the display effect.

[0004] In a first aspect, embodiments of the present application provide a display panel, the display panel comprising a plurality of pixel regions; the pixel region comprising at least one minimum repeating region, the minimum repeating region comprising a transmittance region and a light emitting element setting region;

[0005] The transmittance region is provided with a transmittance adjusting structure, and the light emitting element setting region is provided with a light emitting element.

[0006] The display mode of the display panel comprises a first display mode.

[0007] In the first display mode, the transmittance of the transmittance region is adjusted according to the set brightness of the display panel and whether the light emitting element of the pixel region emits light.

[0008] In a second aspect, embodiments of the present application further provide a driving method of a display panel, comprising the display panel of the first aspect, and the driving method comprises:

[0009] Obtaining the display mode of the display panel;

[0010] In the first display mode, the transmittance of the transmittance region is adjusted according to the set brightness of the display panel and whether the light emitting element of the pixel region emits light.

[0011] In a third aspect, embodiments of the present application further provide a display device comprising the display panel of the first aspect.

[0012] The display panel provided by the application comprises a plurality of pixel regions, each pixel region comprises at least one minimum repeating region, the minimum repeating region comprises a transmission area and a light emitting element setting area, in the first display mode, the transmission rate of the transmission area is adjusted according to the set brightness of the display panel and whether the light emitting element of the pixel region emits light, thus, when the light emitting element of the pixel region emits light, the transmission rate of the transmission area of the pixel region where the light emitting element emits light is adjusted according to the relationship between the set brightness of the display panel and the set brightness adjustment range of the display panel, so as to improve the display contrast of the pixel region where the light emitting element emits light and improve the display effect when the display panel is transparently displayed, when the light emitting element of the pixel region does not emit light, the transmission rate of the transmission area of the pixel region is not adjusted, so as to ensure the transparent effect when the display panel is transparently displayed. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some specific embodiments of the application, and for those skilled in the art, the basic concepts of device structure, driving method and manufacturing method disclosed and suggested by various embodiments of the application can be expanded and extended to other structures and drawings, which should be within the scope of the claims of the application without doubt.

[0014] Figure 1 is a structural schematic diagram of a display panel provided by an embodiment of the application;

[0015] Figure 2 is Figure 1 is a sectional schematic diagram along the direction of A-A' in the figure;

[0016] Figure 3 is a structural schematic diagram of another display panel provided by an embodiment of the application;

[0017] Figure 4 is a structural schematic diagram of another display panel provided by an embodiment of the application;

[0018] Figure 5 is a structural schematic diagram of another display panel provided by an embodiment of the application;

[0019] Figure 6 is a structural schematic diagram of another display panel provided by an embodiment of the application;

[0020] Figure 7 is a structural schematic diagram of another display panel provided by an embodiment of the application;

[0021] Figure 8 is an adjustment schematic diagram of a pixel region provided by an embodiment of the application;

[0022] Figure 9 is another schematic diagram of adjusting a pixel region provided by an embodiment of the present application;

[0023] Figure 10 is another schematic diagram of adjusting a pixel region provided by an embodiment of the present application;

[0024] Figure 11 is another schematic diagram of adjusting a pixel region provided by an embodiment of the present application;

[0025] Figure 12 is another schematic diagram of adjusting a pixel region provided by an embodiment of the present application;

[0026] Figure 13 is another schematic diagram of adjusting a pixel region provided by an embodiment of the present application;

[0027] Figure 14 is another schematic diagram of a display panel provided by an embodiment of the present application;

[0028] Figure 15 is another schematic diagram of a display panel provided by an embodiment of the present application;

[0029] Figure 16 is another schematic diagram of a display panel provided by an embodiment of the present application;

[0030] Figure 17 is another schematic diagram of a display panel provided by an embodiment of the present application;

[0031] Figure 18 is a flowchart of a driving method of a display panel provided by an embodiment of the present application;

[0032] Figure 19 is a schematic diagram of a display device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely by embodiments with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments but not all of the embodiments of the present application. Based on the basic concepts disclosed and suggested in the embodiments of the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0034] Figure 1 is a schematic diagram of a display panel provided by an embodiment of the present application, Figure 2 is Figure 1 is a schematic diagram of a display panel provided by an embodiment of the present application, Figure 1And Figure 2 As shown in FIG. 1, the display panel provided by the embodiment of the present application includes a plurality of pixel regions 01, each of which includes at least one minimum repeating region 10, and the minimum repeating region includes a transmissive region 110 and a light emitting element arrangement region 120. The transmissive region 110 is provided with a transmittance adjusting structure 111, and the light emitting element arrangement region 120 is provided with a light emitting element 121. The display mode of the display panel includes a first display mode. In the first display mode, the transmittance of the transmissive region 110 is adjusted according to the set brightness of the display panel and whether the light emitting element 121 of the pixel region 01 emits light.

[0035] Specifically, as shown in FIG. 1, the display panel includes a plurality of pixel regions 01, each of which includes at least one minimum repeating region 10, and the minimum repeating region includes a transmissive region 110 and a light emitting element arrangement region 120. The transmissive region 110 is provided with a transmittance adjusting structure 111, and the light emitting element arrangement region 120 is provided with a light emitting element 121. The display mode of the display panel includes a first display mode. In the first display mode, the transmittance of the transmissive region 110 is adjusted according to the set brightness of the display panel and whether the light emitting element 121 of the pixel region 01 emits light. Figure 1 And Figure 2 As shown in FIG. 1, the display panel includes a plurality of pixel regions 01, each of which includes at least one minimum repeating region 10, and the minimum repeating region includes a transmissive region 110 and a light emitting element arrangement region 120. The transmissive region 110 is provided with a transmittance adjusting structure 111, and the light emitting element arrangement region 120 is provided with a light emitting element 121. The display mode of the display panel includes a first display mode. In the first display mode, the transmittance of the transmissive region 110 is adjusted according to the set brightness of the display panel and whether the light emitting element 121 of the pixel region 01 emits light.

[0036] It should be noted that, Figure 1 In the embodiment, the minimum repeating regions 10 are arranged in the first direction X and the second direction Y. The number of minimum repeating regions 10 included in the display panel is not limited thereto, and a person skilled in the art can set the number and arrangement of the minimum repeating regions 10 according to actual needs. In addition, Figure 1 In the embodiment, the pixel region 01 is exemplarily illustrated as including two minimum repeating regions 10, and the number of minimum repeating regions 10 in the pixel region 01 is not limited thereto. A person skilled in the art can set the number and arrangement of the minimum repeating regions 10 in the pixel region 01 according to actual needs.

[0037] The light emitting element arrangement area 120 comprises a plurality of light emitting elements 121, which can comprise red, green and blue light emitting elements, and further constitute a pixel unit. In one embodiment, the light emitting elements 121 in one minimum repeating area 10 can comprise one red, one green and one blue light emitting element, each constituting a pixel unit. In another embodiment, the light emitting elements 121 in one minimum repeating area 10 can comprise at least two of each color, one being a normal light emitting element and the other being a redundant light emitting element, which can replace the normal light emitting element with defects as a sub-pixel to display, for example, Figure 1 As shown, the six light emitting elements 121 in one minimum repeating area 10 can comprise two red, two green and two blue light emitting elements. The light emitting element arrangement area 120 further comprises a driving circuit 20, which can be electrically connected to the light emitting elements 121. The driving circuit 20 comprises a thin film transistor T, and the light emitting element comprises a light emitting body, a first electrode and a second electrode. The film layer where the thin film transistor T is located comprises an active layer, a gate insulating layer, a gate metal layer, an insulating layer and a source-drain metal layer, which are sequentially stacked. The channel of the thin film transistor T is located in the active layer, the gate of the thin film transistor T is located in the gate metal layer, and the source and drain of the thin film transistor T are located in the source-drain metal layer. The first electrode of the light emitting element 121 can be an anode, and the drain of the thin film transistor T is connected to the anode, so that the light emitting element 121 emits light under the control of the thin film transistor T.

[0038] The transmission area 110 comprises a transmittance adjusting structure 111, which can be an electrochromic structure. The driving circuit 20 in the light emitting element arrangement area 120 can also be electrically connected to the transmittance adjusting structure 111, so that the transmittance of the transmission area 110 is adjusted by adjusting the blackening degree of the transmittance adjusting structure 111 by the driving circuit 20. For example, when the driving circuit 20 adjusts the blackening degree of the transmittance adjusting structure 111 to 100%, the transmittance of the transmission area 110 is 0, and under this transmittance, the display panel realizes ordinary full black display, i.e. non-transparent display with a black background; when the driving circuit 20 adjusts the blackening degree of the transmittance adjusting structure 111 to 75%, the transmittance of the transmission area 110 is 25%; when the driving circuit 20 adjusts the blackening degree of the transmittance adjusting structure 111 to 25%, the transmittance of the transmission area 110 is 75%; and when the driving circuit 20 adjusts the blackening degree of the transmittance adjusting structure 111 to 0, the transmittance of the transmission area 110 is 100%, and under this transmittance, the transparent display of the display panel has the best transparent effect.

[0039] In addition, the display panel further comprises a plurality of display modes, such as a first display mode, a second display mode, and a third display mode. The first display mode is an automatic adjustment mode, which can adjust the transmittance of the transmittance area 110 according to the set brightness of the display panel and whether the light emitting element 121 in the pixel area 01 emits light. The second display mode is a multi-grade adjustment mode, which can adjust the transmittance of each transmittance area 110 of the display panel to the same transmittance as needed. The third display mode is a power saving display mode, which can control the transmittance adjustment structure 111 in the corresponding transmittance area 110 to be black to realize display according to display requirements. Specifically, in the first display mode, when the light emitting element 121 in the pixel area 01 emits light, the transmittance of the transmittance area 110 in the pixel area 01 is adjusted according to the relationship between the set brightness of the display panel and the set brightness adjustment range of the display panel, so as to as far as possible improve the display contrast of the pixel area in which the light emitting element 121 emits light, and improve the display effect of the transparent display of the display panel. When the light emitting element 121 in the pixel area 01 does not emit light, the transmittance of the transmittance area 110 in the corresponding pixel area 01 does not need to be adjusted, that is, when the light emitting element 121 does not emit light, the transmittance of the transmittance area 110 in the corresponding pixel area 01 is not affected, so as to ensure the transparency effect of the transparent display of the display panel.

[0040] It can be understood that the set brightness of the display panel mentioned above can be the current overall brightness of the display panel. When the display panel is working, the set brightness of the display panel can be adjusted by the corresponding module. By increasing the brightness of the display panel, the brightness of the picture of the display panel as a whole can be increased, and the picture can be brighter. By reducing the brightness of the display panel, the brightness of the picture of the display panel as a whole can be reduced, and the picture can be darker.

[0041] It should be noted that when the pixel area 01 comprises a plurality of minimum repeating areas 10, the light emitting element 121 can emit light in part of the minimum repeating areas 10. The light emitting element 121 in the minimum repeating area 10 can emit light in one light emitting element 121 or a plurality of light emitting elements 121 in the minimum repeating area 10. The light emitting element 121 in the plurality of minimum repeating areas 10 in the pixel area 01 can all emit light. That is, as long as the light emitting element 121 in the pixel area 01 emits light, the transmittance of the transmittance area 110 in the pixel area 01 needs to be adjusted. When the light emitting element 121 in the pixel area 01 does not emit light, the transmittance of the transmittance area 110 in the pixel area 01 does not need to be adjusted, that is, the transmittance of the transmittance area 110 in the pixel area 01 can be kept at 100%, so as to improve the display effect of the transparent display of the display panel while ensuring the transparency effect of the transparent display of the display panel.

[0042] It should be further noted that the transmittance of the transmissive region 110 in the adjusting pixel region 01 can be the blackening degree of the transmissive region 110 in the adjusting pixel region 01, can be the adjusting amount of the transmissive region 110 in the adjusting pixel region 01, or can be both the blackening degree and the adjusting amount of the transmissive region 110 in the adjusting pixel region 01.

[0043] In summary, the pixel region in the embodiment of the present application includes at least one minimum repeating region, the light emitting element arrangement region of the minimum repeating region includes a light emitting element, the transmissive region of the minimum repeating region includes a transmittance adjusting structure, and in the first display mode, the transmittance of the transmissive region is adjusted according to the set brightness of the display panel and whether the light emitting element of the pixel region emits light. In this way, when the light emitting element of the pixel region emits light, the transmittance of the transmissive region of the pixel region where the light emitting element emits light is adjusted according to the relationship between the set brightness of the display panel and the set brightness adjusting range of the display panel, so as to improve the display contrast of the pixel region, and the display content of the pixel region can be clearly seen, and the display effect of transparent display is improved. When the light emitting element of the pixel region does not emit light, the transmittance of the transmissive region of the corresponding pixel region is not adjusted, that is, the transmittance of the transmissive region of the pixel region is not affected, so as to ensure the transparent effect of the display panel in transparent display.

[0044] Optionally, Figure 3 is another structural schematic diagram of a display panel provided by the embodiment of the present application, Figure 4 is another structural schematic diagram of a display panel provided by the embodiment of the present application, referring to Figure 3 and Figure 4 The set brightness adjusting range of the display panel is [L1, L2], when the set brightness of the display panel is less than a first brightness threshold and the light emitting element 121 of the pixel region 01 emits light, the transmittance of the transmissive region 110 in the same minimum repeating region 10 as the light emitting element 121 is at least reduced to T1, and when the set brightness of the display panel is greater than or equal to the first brightness threshold and the light emitting element 121 of the pixel region 01 emits light, the transmittance of the transmissive region 110 in the same minimum repeating region 01 as the light emitting element 121 is at least adjusted to T2, wherein the first brightness threshold is greater than L1 and less than L2, and T2 is greater than T1.

[0045] Specifically, as shown in Figure 3 and Figure 4 The set brightness adjusting range of the display panel is [L1, L2], that is, the minimum value of the set brightness of the display panel is L1, and the maximum value is L2, which can also be understood as the overall brightness adjusting range of the display panel being [L1, L2]. As shown in Figure 3As shown, when the light-emitting element 121 of pixel region 01 emits light, and the set brightness of the display panel is less than the first brightness threshold, wherein the first brightness threshold is greater than L1 and less than L2, the transmittance of the transmission area located in the same minimum repeating area 10 as the light-emitting element 121 is reduced to T1. That is, when the set brightness of the display panel is low, the display content of the pixel region 01 corresponding to the light-emitting element 121 is not easily seen clearly. Therefore, it is necessary to reduce the transmittance of the transmission area 110 in the pixel region 01 corresponding to the light-emitting element 121 when it emits light, that is, to reduce the transmittance of the transmission area located in the same minimum repeating area 10 as the light-emitting element 121 in the emitting state to T1, so as to improve the display contrast of the pixel region 01 and improve the display effect of the pixel region 01. The transmittance of other transmission areas can remain unchanged, such as being kept at 100%, so as to improve the display effect when the display panel is transparent while ensuring the transparency effect when the display panel is transparent. Figure 4 As shown, when the light-emitting element 121 of pixel region 01 emits light, and the set brightness of the display panel is greater than or equal to the first brightness threshold, the transmittance of the transmission area 110 located in the same minimum repeating area 10 as the light-emitting element 121 is adjusted to at least T2, where T1 is less than T2. ​​That is, when the set brightness of the display panel is high, the display content of the pixel region 01 corresponding to the light-emitting element 121 is clearly visible. Therefore, it is not necessary to reduce the transmittance of the transmission area 110 in the pixel region 01 corresponding to the light-emitting element 121. The transmittance of the transmission area 110 located in the same minimum repeating area 10 as the light-emitting element 121 can be adjusted to at least T2. In other words, when the set brightness of the display panel is high, the transmittance of the transmission area 110 of the pixel region 01 corresponding to the light-emitting element 121 is high, and when the set brightness of the display panel is low, the transmittance of the transmission area 110 of the pixel region 01 corresponding to the light-emitting element 121 is low, thereby improving the display effect when the set brightness of the display panel is low.

[0046] It should be noted that the aforementioned reduction of the transmittance of the transmittance region 110 located in the same minimum repeating region 10 as the light-emitting element 121 to T1 can be either reducing the transmittance of the transmittance region 110 located in the same minimum repeating region 10 as the light-emitting element 121 to T1, or reducing the transmittance of the transmittance region 110 located in the same minimum repeating region 10 as the light-emitting element 121 to T1, and reducing the transmittance of the transmittance region 110 in the minimum repeating region 10 adjacent to the minimum repeating region 10 where the light-emitting element 121 is located.

[0047] Optionally, based on the above embodiments, see also... Figure 3T1 = 0. That is, when the set brightness of the display panel is less than the first brightness threshold and the light-emitting element 121 of pixel area 01 emits light, the transmittance of the transmission area 110 located in the same minimum repeating area 10 as the light-emitting element 121 is reduced to 0. In other words, when the light-emitting element 121 of pixel area 01 emits light and the set brightness of the display panel is less than the first brightness threshold, the transmittance of the transmission area 110 corresponding to the light-emitting element 121 in the light-emitting state of pixel area 01 is adjusted to the minimum, that is, completely black. In this way, the display contrast of the pixel area is further improved, and the display effect of the display panel is improved. When the light-emitting element 121 of pixel area 01 emits light, and the set brightness of the display panel is greater than or equal to the first brightness threshold, the transmittance of the transmission area 110 located in the same minimum repeating area 10 as the light-emitting element 121 is adjusted to T2. T2 can be 100%, that is, when the set brightness of the display panel is high, the display content of the pixel area 01 corresponding to the light-emitting element 121 is clearly visible. By adjusting the transmittance of the transmission area 110 located in the same minimum repeating area 10 as the light-emitting element 121 to 100%, the transparency effect of the display panel when the set brightness of the display panel is high can be guaranteed.

[0048] It should be noted that the above embodiments exemplify the case where T1 = 0 and T2 = 100%. In other embodiments, T1 can also be 20%, 50%, etc., and T2 can also be 75%, etc. The embodiments of the present invention do not limit the specific values ​​of T1 and T2, as long as T2 is greater than T1.

[0049] Optional, Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. See also... Figure 4 and Figure 5 The first brightness threshold is the maximum value of the set brightness of the display panel. When the set brightness of the display panel is equal to the first brightness threshold and the light-emitting element 121 of the pixel area 01 emits light, the transmittance of the transmittance area 110 located in the same minimum repeating area 10 as the light-emitting element 121 is adjusted to T2.

[0050] Specifically, the set brightness adjustment range of the display panel is [L1, L2], that is, the minimum value of the set brightness of the display panel is L1, and the maximum value is L2. The first brightness threshold is the maximum value L2 of the set brightness of the display panel. Furthermore, when the light-emitting element 121 in the pixel region 01 emits light and the set brightness of the display panel is equal to the first brightness threshold, at least adjust the transmittance of the transmissive region 110 in the same minimum repeating region 10 as the light-emitting element 121 to T2. In other words, when the set brightness of the display panel is the maximum value L2 of the set brightness of the display panel, the set brightness of the display panel is relatively high, and the display content of the pixel region 01 corresponding to the light emission of the light-emitting element 121 can be seen more clearly. Furthermore, there is no need to reduce the transmittance of the transmissive region 110 in the pixel region 01 corresponding to the light emission of the light-emitting element 121. Instead, the transmittance of the transmissive region 110 in the same minimum repeating region 10 as the light-emitting element 121 can be adjusted to be relatively high. Therefore, when the set brightness of the display panel is relatively high, the transparency effect of the display panel during transparent display is ensured.

[0051] In another embodiment, the set brightness adjustment range of the display panel is [L0, LN+1], and the display panel includes N set brightness thresholds, which are L1 to L N , and L i <L i+1 , the set brightness thresholds are all greater than L0 and all less than LN+1, where i is a natural number in [1, N-1];

[0052] When the set brightness of the display panel is less than Lj and the light-emitting element 121 in the pixel region 01 emits light, at least reduce the transmittance of the transmissive region 110 in the same minimum repeating region 10 as the light-emitting element 121 to Tj, where Tj < Tj+1, and j is a natural number in [1, N-1].

[0053] Specifically, assume N is 3. The set brightness adjustment range of the display panel is [L0, L4]. The display panel includes 3 set brightness thresholds, namely L1, L2, and L3, where L1 is less than L2, L2 is less than L3, and L1, L2, and L3 are all greater than L0 and less than L4. Further, when the set brightness of the display panel is less than L1 and the light-emitting element 121 in the pixel region 01 emits light, at least reduce the transmittance of the transmissive region 110 in the same minimum repeating region 10 as the light-emitting element 121 to T1, where T1 < T2. When the set brightness of the display panel is less than L2, at least reduce the transmittance of the transmissive region 110 in the same minimum repeating region 10 as the light-emitting element 121 to T2, where T2 < T3. When the set brightness of the display panel is less than L3, at least reduce the transmittance of the transmissive region 110 in the same minimum repeating region 10 as the light-emitting element 121 to T3, where T3 is less than T4. That is to say, when the set brightness adjustment range of the display panel includes multiple set brightness thresholds, the smaller the set brightness threshold, the smaller the transmittance of the transmissive region 110 in the pixel region 10 corresponding to the light-emitting element 121 is adjusted, and the higher the display contrast of the pixel region 10 is. Thus, when the set brightness of the display panel gradually changes from small to large, the transmittance of the transmissive region 110 of the corresponding pixel region 10 is gradually increased, and the display effect of the transparent display can be better improved when the set brightness of the display panel is small.

[0054] In another embodiment, Figure 6 is a schematic structural diagram of another display panel provided by an embodiment of the present invention, Figure 7 is a schematic structural diagram of another display panel provided by an embodiment of the present invention. Refer to Figure 6 and Figure 7 , the set brightness adjustment range of the display panel is [L1, L2]. When the set brightness of the display panel is greater than the second brightness threshold and the light-emitting element 121 in the pixel region 01 emits light, reduce the transmittance of the transmissive region 110 in the same minimum repeating region 10 as the light-emitting element 121. When the set brightness of the display panel is less than or equal to the second brightness threshold and the light-emitting element 121 in the pixel region 01 emits light, reduce the transmittance of the transmissive region 110 in the same minimum repeating region 10 as the light-emitting element 121, and reduce the transmittance of the transmissive region 110 in at least one minimum repeating region 10 adjacent to the minimum repeating region 10 where the light-emitting element 121 is located, where the second brightness threshold is greater than L1 and less than L2.

[0055] Specifically, the set brightness adjustment range of the display panel is [L1, L2], that is, the minimum value of the set brightness of the display panel is L1, and the maximum value is L2. It can also be understood that the overall brightness adjustment range of the display panel is [L1, L2]. The display panel further includes a second brightness threshold, where the second brightness threshold is greater than L1 and less than L2. AsFigure 6 As shown, when the light-emitting element 121 of pixel region 01 emits light, and the set brightness of the display panel is greater than the second brightness threshold, the transmittance of the transmission area 110 located in the same minimum repeating region 10 as the light-emitting element 121 is reduced. In other words, when the set brightness of the display panel is high, only the transmittance of the transmission area 110 in the minimum repeating region 10 corresponding to the light-emitting element's emission is adjusted. This improves the display contrast of pixel region 01 while avoiding affecting the transmittance of the transmission areas 110 in other minimum repeating regions 10 adjacent to the minimum repeating region 10 where the light-emitting element 121 is located, thus ensuring the transparent effect of the display panel. Figure 7 As shown, when the light-emitting element 121 of pixel region 01 emits light, and the set brightness of the display panel is less than or equal to the second brightness threshold, the transmittance of the transmission area 110 located in the same minimum repeating area 10 as the light-emitting element 121 is reduced, and the transmittance of the transmission area 110 in at least one minimum repeating area 10 adjacent to the minimum repeating area 10 where the light-emitting element 121 is located is also reduced. In other words, when the set brightness of the display panel is low, the display content of pixel region 01 corresponding to the light-emitting element 121 is not easily visible. Therefore, it is necessary to reduce the transmittance of the transmission area 110 in pixel region 01 corresponding to the light-emitting element 121 as much as possible. Furthermore, while reducing the transmittance of the transmission area 110 corresponding to the light-emitting element 121, it is also necessary to reduce the transmittance of the transmission area 110 in the minimum repeating area 10 adjacent to the minimum repeating area 10 where the light-emitting element 121 is located, so as to ensure that the display content of pixel region 01 corresponding to the light-emitting element 121 can be clearly seen when the set brightness of the display panel is low, thereby improving the display effect when the display panel is transparent.

[0056] It should be noted that the above embodiments are all described using a preset control method excluding the influence of ambient light. The following describes the adjustment method of the display panel under the influence of ambient light in conjunction with specific embodiments.

[0057] Optional, see below Figure 1 The display panel also includes a control chip (not shown in the figure). The set brightness adjustment range of the display panel is [L1, L2]. In the first display mode, when the set brightness of the display panel is less than the maximum set brightness of the display panel and the light-emitting element 121 of the pixel area 01 emits light, the control chip is used to adjust the set brightness of the display panel and / or the transmittance of the pixel area 01 where the light-emitting element 121 is located according to the first display mode, so that the set brightness L of the display panel is adjusted. 灯 Transmittance X of pixel region 01, reflectance Y of pixel region 01, and ambient brightness L 环 Satisfy L 灯 >4*(X+Y)*L 环 ;

[0058] When the set brightness of the display panel equals the maximum set brightness of the display panel and the light-emitting element 121 of pixel area 01 emits light, the control chip adjusts the transmittance of pixel area 01 where the light-emitting element 121 is located according to the first display mode, so that the set brightness L of the display panel is increased. 灯 The transmittance X of pixel region 01, the reflectance Y of pixel region 01, and the ambient brightness L 环 Satisfy L 灯 >4*(X+Y)*L 环 .

[0059] Specifically, the brightness adjustment range of the display panel is [L1, L2], meaning the minimum brightness setting of the display panel is L1 and the maximum brightness is L2. Considering the influence of ambient brightness, to clearly see the display content of pixel area 01 where the light-emitting element 121 is emitting light, the brightness needs to meet the following conditions: 灯 >4*(X+Y)*L 环 L 灯 The settings are: brightness for the display panel, X is the transmittance of pixel area 01, Y is the reflectance of pixel area 01, and L... 环 Let L be the ambient brightness. 环 The reflectivity Y of pixel area 01 is fixed, while the reflectivity Y of pixel area 01 is determined by the display panel. That is, when the display panel is fixed, the reflectivity Y of pixel area 01 is also fixed. In other words, the above formula can be understood as allowing adjustment of the display panel's set brightness L. 灯 This allows the display panel to set its brightness L. 灯 Greater than 4*(X+Y)*L 环 This allows one to clearly see the display content of pixel area 01 where the light-emitting element 121 emits light, or to adjust the transmittance of pixel area 01 to make 4*(X+Y)*L 环 Less than the set brightness L of the display panel 灯 It is also possible to clearly see the display content of pixel area 01 where the light-emitting element 121 emits light.

[0060] In addition, the display panel also includes a control chip, which can be electrically connected to the transmittance adjustment structure to control the degree of transmittance adjustment of the transmittance area 110 and / or the number of transmittance areas 110. The control chip can also be electrically connected to the light-emitting element 121, thereby controlling the set brightness of the display panel. In the first display mode, when the light-emitting element 121 of pixel area 01 emits light, and the set brightness of the display panel is less than the maximum value of the set brightness of the display panel—that is, when the set brightness of the display panel has not been adjusted to the maximum value of the set brightness of the display panel—the control chip can increase the set brightness L of the display panel according to the first display mode.灯 To adjust the brightness L of the display panel 灯 Greater than 4*(X+Y)*L 环 Alternatively, by reducing the transmittance X of the pixel area where the light-emitting element 121 emits light, 4*(X+Y)*L can be achieved. 环 Less than the set brightness L of the display panel 灯 Or the control chip increases the set brightness L of the display panel. 灯 At the same time, the transmittance X of the pixel area where the light-emitting element 121 emits light is reduced to satisfy the formula L. 灯 >4*(X+Y)*L 环 This improves the display contrast of the pixel area 01 where the light-emitting element 121 emits light, thereby making the display content of the pixel area 01 where the light-emitting element 121 emits light clearer and improving the display effect when the display panel is transparent.

[0061] When the light-emitting element 121 of pixel area 01 emits light, and the set brightness of the display panel is equal to the maximum set brightness of the display panel, that is, when the set brightness of the display panel has been adjusted to the maximum set brightness of the display panel, it is impossible to adjust the set brightness L of the display panel. 灯 To adjust the brightness L of the display panel 灯 Greater than 4*(X+Y)*L 环 That is, the only way to reduce the transmittance X of the pixel area where the light-emitting element 121 emits light is to make 4*(X+Y)*L. 环 Less than the set brightness L of the display panel 灯 This improves the display contrast of the pixel area 01 where the light-emitting element 121 emits light, thereby making the display content of the pixel area 01 where the light-emitting element 121 emits light clearer and improving the display effect when the display panel is transparent.

[0062] It should be noted that the aforementioned adjustment of the transmittance of the pixel area where the light-emitting element is located can be achieved by adjusting the transmittance adjustment structure through a control chip, thereby controlling the degree of transmittance adjustment of the transmittance area 110 and / or the number of transmittance areas 110 adjusted.

[0063] Optional, Figure 8 This is a schematic diagram of pixel region adjustment provided by an embodiment of the present invention. Figure 9 This is another schematic diagram of pixel region adjustment provided by an embodiment of the present invention. Figure 10 This is a schematic diagram of another pixel region adjustment provided by an embodiment of the present invention, see [link / reference]. Figures 8-10When the light-emitting element 121 of pixel region 01 emits light, the control chip is used to adjust the transmittance of at least one transmittance area 110 in pixel region 01 where the light-emitting element 121 is located according to the first display mode; and / or, the control chip is used to adjust the number of transmittance areas 110 in pixel region 01 where the light-emitting element 121 is located to maintain a preset transmittance according to the first display mode.

[0064] Specifically, such as Figure 8 As shown, in the first display mode, the control chip can adjust the transmittance of at least one transmittance region 110 in the pixel region 01 where the light-emitting element 121 is located according to the first display mode. For example, before displaying a frame, the control chip can first set the transmittance of the transmittance region 110 of the minimum repeating region 10 corresponding to the light-emitting element 121 emitting light to T11, and the transmittance of the transmittance region 110 of the two minimum repeating regions adjacent to the minimum repeating region 10 where the light-emitting element 121 is located to T11, and then determine 4*(X+Y)*L 环 Is it less than the set brightness L of the display panel? 灯 If the formula is not satisfied, then the transmittance of the transmittance region 110 of the minimum repeating region 10 corresponding to the light-emitting element 121, and the transmittance of the transmittance regions 110 of the two minimum repeating regions adjacent to the minimum repeating region 10 where the light-emitting element 121 is located, are both set to T21, where T21 is less than T11. The above steps are repeated until the formula L is satisfied. 灯 >4*(X+Y)*L 环 When the light-emitting element 121 emits light, the transmittance of the transmission area of ​​the minimum repeating region 10 adjacent to the minimum repeating region 10 where the light-emitting element 121 is located is adjusted to the required transmittance of the corresponding area to achieve the display of the current frame. In this way, by adjusting the transmittance of multiple transmission areas 110, the formula is satisfied so that the display content of the pixel area 01 where the light-emitting element 121 is located can be clearly seen, thus improving the display effect when the display panel is transparent.

[0065] In yet another embodiment, such as Figure 9 As shown, in the first display mode, the control chip is used to adjust the number of transmittance zones 110 in the pixel area 01 where the light-emitting element 121 is located, maintaining a preset transmittance, according to the first display mode. For example, if the preset transmittance is set to T11, before displaying a frame, the control chip can first set the transmittance of the transmittance zone 110 of the minimum repeating area 10 corresponding to the light-emitting element 121 emitting light to T11, and then determine 4*(X+Y)*L 环 Is it less than the set brightness L of the display panel? 灯If the formula is not satisfied, the transmittance of the transmittance region 110 in the minimum repeating region 10 adjacent to the minimum repeating region 10 where the light-emitting element 121 is located is also set to T11. The above steps are repeated until the formula L is satisfied. 灯 >4*(X+Y)*L 环 When this happens, the number of transparent areas needs to be adjusted to the preset transmittance, and then the transmittance of the corresponding number of transparent areas is adjusted to the preset transmittance to achieve the display of the current frame. In this way, while maintaining the preset transmittance, the formula is satisfied by adjusting the number of transparent areas 110 so that the display content of the pixel area 01 where the light-emitting element 121 emits light can be clearly seen, thus improving the display effect when the display panel is transparent.

[0066] In yet another embodiment, such as Figure 10 As shown, the control chip is used to adjust the transmittance of at least one transmittance region 110 in the pixel region 01 where the light-emitting element 121 is located according to the first display mode, and also to adjust the number of transmittance regions 110 in the pixel region 01 where the light-emitting element 121 is located that maintain a preset transmittance. For example, if the preset transmittance is set to T11, before displaying a frame, the control chip can first set the transmittance of the transmittance region 110 of the minimum repeating region 10 corresponding to the light-emitting element 121 emitting light to T11, and then determine 4*(X+Y)*L 环 Is it less than the set brightness L of the display panel? 灯 If the formula is not satisfied, the transmittance of the transmittance region 110 in the minimum repeating region 10 adjacent to the light-emitting element 121 is set to T21, where T11 is less than T21. Then, 4*(X+Y)*L is judged again. 环 Is it less than the set brightness L of the display panel? 灯 If the formula is not satisfied, the transmittance of the transmittance region 110 in the minimum repeating region 10 adjacent to the minimum repeating region 10 where the light-emitting element 121 is located is set to T11, and the above steps are repeated until the formula L is satisfied. 灯 >4*(X+Y)*L 环 When adjusting the transmittance and number of transmission zones, the transmittance of the corresponding number of transmission zones is adjusted to achieve the corresponding transmittance, thereby realizing the display of the current frame. Thus, by adjusting the degree of transmittance adjustment of the transmission zone 110 and the number of transmission zones 110, the formula is satisfied, so that the display content of the pixel area 01 where the light-emitting element 121 emits light can be clearly seen, improving the display effect when the display panel is transparent. In another embodiment, Figure 11 This is a schematic diagram of another pixel region adjustment provided by an embodiment of the present invention, see [link / reference]. Figure 11When the set brightness of the display panel is less than the maximum set brightness of the display panel and the light-emitting element 121 of the pixel area 01 emits light, the control chip is used to adjust the transmittance of the transmittance area 110 located in the same minimum repeating area 10 as the light-emitting element 121 according to the first display mode.

[0067] Specifically, such as Figure 11 As shown, in the first display mode, when the light-emitting element 121 of pixel area 01 emits light and the set brightness of the display panel is less than the maximum value of the set brightness of the display panel, the set brightness of the display panel is relatively small. That is to say, the transmittance X of pixel area 01 can satisfy the formula after being reduced to a small extent. Therefore, the control chip can adjust the transmittance of the transmission area 110 in the minimum repeating area 10 corresponding to the light-emitting element 121 emitting light only to T11 according to the first display mode. The value of T11 is small. Without affecting the transmittance of the transmission area 110 in other adjacent minimum repeating areas 10, the display contrast of pixel area 01 is increased, thereby improving the display effect of transparent display of the display panel.

[0068] In another embodiment, Figure 12 This is a schematic diagram of another pixel region adjustment provided by an embodiment of the present invention, see [link / reference]. Figure 12 When the set brightness of the display panel is equal to the maximum value of the set brightness of the display panel and the light-emitting element 121 of the pixel area 01 emits light, the control chip is used to adjust the transmittance of the transmission area 110 located in the same minimum repeating area 10 as the light-emitting element 121, and the transmittance of the transmission area 110 in the minimum repeating area 10 adjacent to the minimum repeating area 10 where the light-emitting element 121 is located, according to the first display mode.

[0069] Specifically, such as Figure 12 As shown, pixel region 01 includes multiple minimum repeating regions 10, each of which includes a light-emitting element 121 and a transparent region 110. When at least one light-emitting element 121 in pixel region 01 emits light, and the set brightness of the display panel is equal to the maximum value of the set brightness of the display panel, the set brightness L of the display panel... 灯 To maximize this, the transmittance X of pixel region 01 needs to be reduced significantly before the formula L can be satisfied. 灯 >4*(X+Y)*L 环If only the transmittance of the transmission area 110 in the minimum repeating area 10 corresponding to the light-emitting element 121 when it emits light is adjusted to T11, where the value of T11 is small, the formula may not be satisfied. Therefore, while adjusting the transmittance of the transmission area 110 in the minimum repeating area 10 corresponding to the light-emitting element 121 when it emits light, it is also necessary to adjust the transmittance of the transmission area 110 in the minimum repeating area 10 adjacent to the light-emitting element 121. In this way, when the set brightness of the display panel is the maximum value of the set brightness of the display panel, by adjusting the transmittance of the transmission area 110 in the minimum repeating area 10 corresponding to the light-emitting element 121 and the transmission area 110 adjacent to it, the display effect of transparent display of the display panel when the brightness is high can be improved.

[0070] In yet another embodiment, Figure 13 This is a schematic diagram of another pixel region adjustment provided by an embodiment of the present invention, see [link / reference]. Figure 13 Pixel region 01 includes at least two sub-pixel regions 100. Each sub-pixel region 100 includes a plurality of minimum repeating regions 10. The at least two sub-pixel regions 100 include a first sub-pixel region 101 and a second sub-pixel region 102. The second sub-pixel region 102 surrounds the first sub-pixel region 101. When the light-emitting element 121 of pixel region 01 emits light, the light-emitting element 121 is at least located in the first sub-pixel region 101, and the transmittance of the first sub-pixel region 101 is less than the transmittance of the second sub-pixel region 102.

[0071] Specifically, such as Figure 13As shown, pixel region 01 also includes at least two sub-pixel regions 100. Each sub-pixel region 100 includes multiple minimum repeating regions 10. Each minimum repeating region 10 includes a light-emitting element setting area 120 and a transmission area 110. Furthermore, the at least two minimum repeating regions 10 include a first sub-pixel region 101 and a second sub-pixel region 102. The second sub-pixel region 102 surrounds the first sub-pixel region 101. For example, the first sub-pixel region 101 and the second sub-pixel region 102 can form a concentric circle structure. When the light-emitting element 121 of pixel region 01 emits light, the light-emitting element 121 is at least located in the first sub-pixel region 101 within the inner ring of the concentric circle structure, and the transmission area of ​​the first sub-pixel region 101... The transmittance is less than that of the second sub-pixel region 102. Thus, when the light-emitting element 121 emits light, the pixel region 01 where the light-emitting element 121 emits light is divided into multiple sub-pixel regions 100 from the inside to the outside. The sub-pixel regions 100 located on the outer layer surround the sub-pixel regions 100 located on the inner layer, and the transmittance of the sub-pixel regions 100 gradually increases along the direction from the inner sub-pixel regions 100 to the outer sub-pixel regions 100. In other words, the display contrast of the sub-pixel regions 100 located on the inner layer is better, and the display contrast gradually changes from the inner sub-pixel regions 100 to the outer sub-pixel regions 100, so that there is a transition area when the display panel switches modes, which prompts the visual effect of the display panel.

[0072] It should be noted that, Figure 13 The illustration only shows that pixel region 01 includes two sub-pixel regions 100. The present invention does not limit this. In other embodiments, pixel region 01 may also include other numbers of sub-pixel regions 100. The more sub-pixel regions 100 there are, the better the visual effect of the display panel.

[0073] Optional, Figure 14 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. See also... Figure 14 The display panel also includes a control chip, and the display mode includes a second display mode. In the second display mode, the light-emitting element 121 is used for display, and the control chip is used to adjust the transmittance of the pixel area 01 according to the second display mode. The transmittance of the transmission area 110 in different pixel areas 01 is the same.

[0074] Specifically, such as Figure 14As shown, the display panel also includes a second display mode. This second display mode can be a multi-level adjustable mode, meaning the transmittance of each transmittance zone 110 of the display panel can be adjusted to the same transmittance level according to transmittance requirements. For example, when the display panel needs to achieve a normal full-black display, the control chip can adjust the transmittance of the transmittance zone 110 in all pixel areas 01 of the display panel to T11, where T11 = 0, thus transforming the transparent display into a full-black background display, i.e., a non-transparent display. Alternatively, the control chip can adjust the transmittance of the transmittance zone 110 in the pixel area 01 of the display panel to T21, where T21 = 25%; or the control chip can adjust the transmittance of the transmittance zone 110 in the pixel area 01 of the display panel to T31, where T31 = 75%. Thus, in the second display mode, multiple levels of transmittance adjustment can be achieved according to the overall transmittance requirements of the display panel. Furthermore, the control chip can switch between the first and second display modes according to different display needs to achieve a gradual change from transparent display to normal full-black display, thereby expanding the application scenarios of the display panel.

[0075] Optional, Figure 15 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. See also... Figure 15 The display panel also includes a control chip, and the display mode includes a third display mode. In the third display mode, at least one transmittance adjustment structure 111 is used for display, and the control chip is used to adjust the transmittance of the transmittance zone 110 where the transmittance adjustment structure 111 is located according to the third display mode, so that there is a difference between the transmittance of the transmittance zone 110 where the at least one transmittance adjustment structure 111 is located and the transmittance of the transmittance zone 110 adjacent to it.

[0076] Specifically, such as Figure 15 As shown, the display panel also includes a third display mode, which can be a power-saving display mode. In the third display mode, the light-emitting element 121 in the display panel is not used for display, that is, the light-emitting element 121 in the display panel does not emit light. The transmittance of the transmittance adjustment structure 111 is adjusted to T11 by controlling the transmittance adjustment structure 111, where T11 = 0, so that there is a difference between the transmittance of the transmittance adjustment structure 111 and the transmittance of the adjacent transmittance areas 110. Then, the transmittance area 110 is used as a pixel to display indicator information, such as date and time. In this way, when the display panel is not working, the control chip can switch the display panel to the third display mode to achieve power-saving display and improve the user experience.

[0077] Based on the above embodiments, Figure 16 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. See also... Figure 16The display panel also includes a light source module 30, which provides light to the transmittance area 110 in the third display mode. Specifically, the display panel also includes a light source module 30, which can be located in the bezel area of ​​the display panel. The light source module 30 can be an LED. Since the indicator information is displayed by adjusting a portion of the transmittance area 110 to turn black in the third display mode, the indicator information on the display panel cannot be seen in the dark without a light source. Therefore, by providing light to the transmittance area 110 through the light source module, the indicator information in the third mode can be clearly seen even in the dark, thus improving the user experience.

[0078] In yet another embodiment, Figure 17 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. See also... Figure 17 The display panel also includes a reflection module 40, which is used to reflect at least a portion of the light emitted by the light-emitting element 121 to the light-emitting surface of the display panel in the third display mode.

[0079] Specifically, such as Figure 17 As shown, the reflection module 40 can be located in the bezel area of ​​the display panel. The reflection module 40 can be a reflector. Since the indicator information is displayed by adjusting the partial transparent area 110 to turn black in the third display mode, it means that the indicator information on the display panel cannot be seen in the dark if there is no light source. Therefore, in the third display mode, while controlling the partial transparent area 110 to turn black, the light-emitting element 121 in the minimum repeating area near the bezel area of ​​the display panel is adjusted to emit light, so that the light emitted by the light-emitting element 121 is reflected by the reflection module 40 to the light-emitting surface of the display panel, so that the indicator information in the third mode can be clearly seen in the dark, thus improving the user experience.

[0080] Based on the above embodiments, see below. Figure 2The transmittance adjustment structure 111 includes a first transparent electrode 1111, an electrochromic layer 1112, a second transparent electrode 1113, and an electrolyte layer 1114. The electrochromic layer 1112 is located between the first transparent electrode 1111 and the second transparent electrode 1113. The electrolyte layer 1114 is formed on the electrochromic layer 1112, thereby filling the gap between the second transparent electrode 1113 and the electrochromic layer 1112 to ensure that the second transparent electrode 1113 and the cathode signal transmission structure 50 are on the same horizontal plane. Specifically, the materials of the first transparent electrode 1111 and the second transparent electrode 1113 can be ITO, IZO, conductive silver wire, etc. The electrochromic layer 1112 located between the two electrodes can be electrically controlled to adjust the degree of color change in the transmittance region 110. The electrochromic layer 1112 can be an inorganic or organic electrochromic layer, and its material can include Ir₂O, NiO, WO₃, polythiophene, violetin, etc. It can be formed on the first transparent electrode 1111 by CVD, PVD, electrodeposition, etc. Thus, the first transparent electrode 1111, the electrochromic layer 1112, and the second transparent electrode 1113 ensure a simple control method for the transmittance adjustment structure 111.

[0081] Based on the above embodiments, see below. Figure 2 The light-emitting element 121 includes a light-emitting diode 1210, and the display panel also includes a cathode signal transmission structure 50. The cathode signal transmission structure 50 is electrically connected to the cathode of the light-emitting diode 1210, and the cathode signal transmission structure 50 is integrally disposed with the second transparent electrode 1113. Specifically, as shown... Figure 2 As shown, the light-emitting element 121 can be a light-emitting diode 1210. The anode of the light-emitting diode 1210 is electrically connected to the source of the thin-film transistor T, and the cathode of the light-emitting diode 1210 is electrically connected to the cathode signal transmission structure 50, so that the light-emitting diode 1210 can emit light normally. In addition, the cathode signal transmission structure 50 and the second transparent electrode 1113 are integrally formed. During manufacturing, the cathode signal transmission structure 50 and the second transparent electrode 1113 can be formed using the same mask in the same manufacturing process, eliminating the need to make separate masks for the cathode signal transmission structure 50 and the second transparent electrode 1113, saving costs, reducing the number of processes, and improving production efficiency.

[0082] It should be noted that in other embodiments, the cathode signal transmission structure 50 and the second transparent electrode 1113 can also be configured separately. Figure 2 The example shown illustrates that the cathode signal transmission structure 50 and the second transparent electrode 1113 are made of different materials and in different processes. This invention does not limit this, and those skilled in the art can make the settings as needed.

[0083] Optionally, based on the above embodiments, see also... Figure 2 The display panel also includes a first driving circuit 210 and a second driving circuit 220. The first driving circuit 210 is electrically connected to the transmittance adjustment structure 111, and the second driving circuit 220 is electrically connected to the light-emitting element 121. The first driving circuit 210 and the second driving circuit 220 are independently configured. Specifically, the display panel also includes a driving circuit 10, which includes a first driving circuit 210 and a second driving circuit 220. The first driving circuit 210 can be a 2T1C circuit, electrically connected to the transmittance adjustment structure 111, and drives the transmittance adjustment structure 111 to operate. The second driving circuit 220 can be a 7T1C circuit, electrically connected to the light-emitting element 121, and drives the light-emitting element 121 to emit light. The independent configuration of the first driving circuit 210 and the second driving circuit 220 ensures that the control of the light-emitting element 121 and the transmittance adjustment structure 111 does not interfere with each other, guaranteeing the normal operation of the display panel.

[0084] Based on the same inventive concept, embodiments of the present invention also provide a method for driving a display panel. Figure 18 This is a flowchart illustrating a driving method for a display panel according to an embodiment of the present invention. See also... Figure 18 The driving method includes:

[0085] S110. Obtain the display mode of the display panel.

[0086] Specifically, the display mode of the display panel can be obtained through the control chip. The display modes include a first display mode, a second display mode, and a third display mode. The first display mode can be an automatic adjustment mode, which can adjust the transmittance of the transmission area according to the set brightness of the display panel and whether the light-emitting elements in the pixel area are emitting light. The second display mode is a multi-level adjustment mode, which can adjust the transmittance of each transmission area of ​​the display panel to the same transmittance as needed. The third display mode is a power-saving display mode, which can control the transmittance adjustment structure in the corresponding transmission area to turn black to achieve the display according to the display requirements.

[0087] S120. In the first display mode, the transmittance of the transmission area is adjusted according to the set brightness of the display panel and whether the light-emitting elements in the pixel area emit light.

[0088] Specifically, in the first display mode, when the light-emitting element in a pixel area emits light, the transmittance of the transmissive area in the pixel area is adjusted according to the relationship between the set brightness of the display panel and its adjustable range. This maximizes the display contrast of the pixel area where the light-emitting element is emitting light, enhancing the display effect when the display panel is transparent. When the light-emitting element in a pixel area is not emitting light, there is no need to adjust the transmittance of the corresponding transmissive area. In other words, the absence of light emission does not affect the transmittance of the corresponding transmissive area, ensuring the transparency effect when the display panel is transparent. The adjustment of the transmittance of the transmissive area in the pixel area can be an adjustment of the degree of darkening of the transmissive area, an adjustment of the number of transmissive areas in the pixel area, or a simultaneous adjustment of both the degree of darkening and the number of transmissive areas in the pixel area.

[0089] In summary, in this embodiment of the invention, by acquiring the display mode of the display panel, and under the condition that it is confirmed to be the first display mode, the transmittance of the transmission area is adjusted according to the set brightness of the display panel and whether the light-emitting element in the pixel area emits light. Thus, using whether the light-emitting element emits light as a judgment condition, when the light-emitting element emits light, the transmittance of the transmission area of ​​the pixel area where the light-emitting element is emitting light is adjusted according to the relationship between the set brightness of the display panel and the set brightness adjustment range of the display panel, thereby improving the display contrast of the pixel area where the light-emitting element is emitting light and improving the display effect when the display panel is transparent. When the light-emitting element in the pixel area does not emit light, the transmittance of the transmission area of ​​the pixel area is not adjusted to ensure the transparency effect when the display panel is transparent.

[0090] Based on the same inventive concept, embodiments of the present invention also provide a display device. Figure 19 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Figure 19 As shown, the display device includes the display panel 10 in the above embodiments. This display device includes the display panel 10 of any embodiment of the present invention; therefore, the display device provided by the embodiments of the present invention possesses the corresponding beneficial effects of the display panel 10 provided by the embodiments of the present invention, which will not be elaborated further here. For example, the display device can be an electronic device such as a mobile phone, computer, smart wearable device (e.g., smartwatch), and in-vehicle display device; the embodiments of the present invention do not limit this.

[0091] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A display panel, characterized by, The display panel comprises a plurality of pixel regions; the pixel regions comprise at least one minimum repeating region, the minimum repeating region comprises a transmittance region and a light emitting element arrangement region; The transmittance region is provided with a transmittance adjusting structure, and the light emitting element arrangement region is provided with a light emitting element; The display mode of the display panel comprises a first display mode; In the first display mode, the transmittance of the transmittance region is adjusted according to the set brightness of the display panel and whether the light emitting element of the pixel region emits light; When the set brightness adjustment range of the display panel is [L1, L2]; When the set brightness of the display panel is greater than a second brightness threshold and the light emitting element of the pixel region emits light, the transmittance of the transmittance region in the same minimum repeating region as the light emitting element is reduced; When the set brightness of the display panel is less than or equal to the second brightness threshold and the light emitting element of the pixel region emits light, the transmittance of the transmittance region in the minimum repeating region adjacent to the minimum repeating region where the light emitting element is located is reduced. Wherein, the second brightness threshold is greater than L1 and less than L2.

2. The display panel of claim 1, wherein, The set brightness adjustment range of the display panel is [L1, L2]; When the set brightness of the display panel is less than a first brightness threshold and the light emitting element of the pixel region emits light, the transmittance of the transmittance region in the same minimum repeating region as the light emitting element is at least reduced to T1; When the set brightness of the display panel is greater than or equal to the first brightness threshold and the light emitting element of the pixel region emits light, the transmittance of the transmittance region in the same minimum repeating region as the light emitting element is at least adjusted to T2; Wherein, the first brightness threshold is greater than L1 and less than L2, and T2 is greater than T1.

3. The display panel of claim 2, wherein, T1=0。 4. The display panel of claim 2, wherein, The first brightness threshold is the maximum value of the set brightness of the display panel; When the set brightness of the display panel is equal to the first brightness threshold and the light emitting element of the pixel region emits light, the transmittance of the transmittance region in the same minimum repeating region as the light emitting element is at least adjusted to T2.

5. The display panel of claim 1, wherein, The set brightness adjustment range of the display panel is [L0, LN+1]; The display panel comprises N set luminance thresholds, respectively L1~L N , and L i < L i+1 , the set luminance thresholds are all greater than L0 and all less than LN+1, wherein i is a natural number in [1, N-1]. When the set brightness of the display panel is less than Lj and the light emitting element of the pixel region emits light, the transmittance of the transmittance region in the same minimum repeating region as the light emitting element is at least reduced to Tj, wherein Tj < Tj+1, j is a natural number in [1, N-1].

6. The display panel of claim 1, wherein, The display panel further comprises a control chip, and the set brightness adjustment range of the display panel is [L1, L2]; In the first display mode, when the set luminance of the display panel is less than a maximum value of the set luminance of the display panel and the light emitting element of the pixel region emits light, the control chip is configured to adjust the set luminance of the display panel and / or the transmittance of the pixel region where the light emitting element is located according to the first display mode, so that the set luminance L 灯 of the display panel, the transmittance X of the pixel region, the reflectivity Y of the pixel region and the ambient brightness L 环 satisfy ; When the set luminance of the display panel is equal to a maximum value of the set luminance of the display panel and the light emitting element of the pixel region emits light, the control chip is configured to adjust the transmittance of the pixel region where the light emitting element is located according to the first display mode, so that the set luminance L of the display panel is less than the maximum value of the set luminance of the display panel 灯 The transmittance X of the pixel region, the reflectivity Y of the pixel region and the ambient brightness L 环 satisfy .

7. The display panel of claim 6, wherein, When the light emitting element of the pixel region emits light, the control chip is configured to adjust the transmittance of at least one of the transmittance regions in the pixel region in which the light emitting element is located according to the first display mode. And / or, the control chip is configured to adjust the number of the transmittance regions maintaining preset transmittance in the pixel region in which the light emitting element is located according to the first display mode.

8. The display panel of claim 7, wherein, When the set brightness of the display panel is less than the maximum value of the set brightness of the display panel and the light emitting element of the pixel region emits light, the control chip is configured to adjust the transmittance of the transmittance region in the same minimum repeating region as the light emitting element according to the first display mode.

9. The display panel of claim 7, wherein, When the set brightness of the display panel is equal to the maximum value of the set brightness of the display panel and the light emitting element of the pixel region emits light, the control chip is configured to adjust the transmittance of the transmittance region in the same minimum repeating region as the light emitting element and the transmittance of the transmittance region in the minimum repeating region adjacent to the minimum repeating region in which the light emitting element is located according to the first display mode.

10. The display panel of claim 7, wherein, The pixel region comprises at least two sub-pixel regions, and any one of the sub-pixel regions comprises a plurality of minimum repeating regions. The at least two sub-pixel regions comprise a first sub-pixel region and a second sub-pixel region, and the second sub-pixel region surrounds the first sub-pixel region. When the light emitting element of the pixel region emits light, the light emitting element is located at least in the first sub-pixel region, and the transmittance of the first sub-pixel region is less than the transmittance of the second sub-pixel region.

11. The display panel of claim 1, wherein, The display panel further comprises a control chip, and the display mode comprises a second display mode, in which the light emitting element is configured to display. The control chip is configured to adjust the transmittance of the pixel region according to the second display mode, and the transmittance of the transmittance region in different pixel regions is the same.

12. The display panel of claim 1, wherein, The display panel further comprises a control chip, and the display mode comprises a third display mode, in which at least one transmittance adjusting structure is configured to display. The control chip is configured to adjust the transmittance of the transmittance region in which the transmittance adjusting structure is located according to the third display mode, so that the transmittance of the transmittance region in which the at least one transmittance adjusting structure is located and the transmittance of the transmittance region adjacent thereto are different.

13. The display panel of claim 12, wherein, The display panel further comprises a light source module, which is configured to provide a light source for the transmittance region in the third display mode.

14. The display panel of claim 12, wherein, The display panel further comprises a reflection module, which is configured to reflect at least part of the light emitted by the light emitting element to the light exit surface of the display panel in the third display mode.

15. The display panel of claim 1, wherein, The transmittance adjusting structure comprises a first transparent electrode, an electrochromic layer and a second transparent electrode, and the electrochromic layer is located between the first transparent electrode and the second transparent electrode.

16. The display panel of claim 15, wherein, The light emitting element comprises a light emitting diode. The display panel further comprises a cathode signal transmission structure, which is electrically connected with the cathode of the light emitting diode. The cathode signal transmission structure is integrally arranged with the second transparent electrode.

17. The display panel of claim 1, wherein, The display panel further comprises a first driving circuit and a second driving circuit, the first driving circuit is electrically connected with the transmittance adjusting structure, and the second driving circuit is electrically connected with the light-emitting element. The first driving circuit and the second driving circuit are independently arranged.

18. A driving method of a display panel, applied to the display panel of any one of claims 1-17, characterized in that, The driving method comprises: acquiring a display mode of the display panel; in the first display mode, adjusting the transmittance of the transmittance region according to the set brightness of the display panel and whether the light-emitting element of the pixel region emits light.

19. A display device comprising: The display panel according to any one of claims 1-17.

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