A display module and a display device

Abstract

This application discloses a display module and a display device. The display module includes a display panel and an optical sensor. The display panel includes a display area, which further includes a first display area and a second display area. Along a first direction, the optical sensor at least partially overlaps with the first display area. The display panel also includes a first light-transmitting hole disposed in the first display area, a second light-transmitting hole disposed in the second display area, and a transmittance adjustment layer disposed on one side of the second light-transmitting hole. Along the first direction, the transmittance adjustment layer at least partially overlaps with the second light-transmitting hole. The technical solution of this application, by providing light-transmitting holes in both the first and second display areas, reduces the difference in reflectivity between the first and second display areas, avoiding the problem of inconsistent visual effects between the first and second display areas when the display panel is off. Furthermore, providing a transmittance adjustment layer in the second display area can also improve the display effect of the second display area.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display module and a display device. Background Technology

[0002] With the continuous development of science and technology, more and more electronic devices with display functions are being widely used in people's daily lives and work, bringing great convenience to people's daily lives and work, and becoming an indispensable tool for people today.

[0003] Currently, different areas of display panels equipped with optical sensors exhibit inconsistent visual effects when the screen is off, affecting the overall display performance of the panel. Summary of the Invention

[0004] This application provides a display module and a display device to solve the problem of poor display effect in existing display panels with optical sensors.

[0005] In a first aspect, embodiments of this application provide a display module, including a display panel and an optical sensor; The display panel includes a display area, which includes a first display area and a second display area. Along a first direction, the optical sensor at least partially overlaps with the first display area; the first direction is the thickness direction of the display module. The display panel also includes a first light-transmitting structure disposed in the first display area and a second light-transmitting structure disposed in the second display area; The first light-transmitting structure includes a first light-transmitting hole, and the second light-transmitting structure includes a second light-transmitting hole and a transmittance adjustment layer disposed on one side of the second light-transmitting hole; along the first direction, the transmittance adjustment layer and the second light-transmitting hole at least partially overlap.

[0006] Secondly, embodiments of this application provide a display device including the display module described in the first aspect above.

[0007] The technical solution of this application, by setting a first light-transmitting structure with a first light-transmitting hole in the first display area, can improve the light transmittance of the first display area, increase the light flux entering the optical sensor, and realize the optical sensing performance of the optical sensor. Furthermore, by setting a second light-transmitting structure with a second light-transmitting hole and a transmittance adjustment layer in the second display area, the second light-transmitting hole can increase the reflectance of the second display area, making its reflectance close to that of the first display area. This reduces the reflectance difference between the two display areas and avoids the visual unevenness problem of the first display area being significantly brighter than other areas when the screen is off. Simultaneously, the second light-transmitting structure also includes a transmittance adjustment layer, which can adjust the transmittance of the second display area, improving the display effect of the display panel.

[0008] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a top view structural diagram of a display module according to an embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the cross-section along AA'; Figure 3 yes Figure 1 An enlarged schematic diagram at point B; Figure 4 yes Figure 1 Another enlarged diagram at point B; Figure 5 yes Figure 1 Another enlarged diagram at point B; Figure 6 yes Figure 1 Another enlarged diagram at point B; Figure 7 yes Figure 1 Another enlarged diagram at point B; Figure 8 yes Figure 1 Another enlarged diagram at point B; Figure 9 yes Figure 1 Another enlarged diagram at point B; Figure 10 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. Detailed Implementation

[0011] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0012] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0013] Figure 1 This is a top view schematic diagram of a display module according to an embodiment of this application. Figure 2 yes Figure 1 A schematic diagram of the cross-section along AA'. Figure 3 yes Figure 1 An enlarged diagram at point B. (Combined with...) Figure 1 , Figure 2 and Figure 3 As shown, the display module includes a display panel 1 and an optical sensor 2. The display panel 1 includes a display area AA, which includes a first display area AA1 and a second display area AA2. Along a first direction (Z direction as shown in the figure, the following description will use the first direction Z as an example), the optical sensor 2 at least partially overlaps with the first display area AA1. The first direction Z is the thickness direction of the display module. The display panel 1 also includes a first light-transmitting structure 31 disposed in the first display area AA1 and a second light-transmitting structure 32 disposed in the second display area AA2. The first light-transmitting structure 31 includes a first light-transmitting hole 310, and the second light-transmitting structure 32 includes a second light-transmitting hole 321 and a transmittance adjustment layer 322 disposed on one side of the second light-transmitting hole 321. Along the first direction Z, the transmittance adjustment layer 322 at least partially overlaps with the second light-transmitting hole 321.

[0014] The display panel 1 includes a first display area AA1 and a second display area AA2, both of which have normal display functions. Specifically, both the first display area AA1 and the second display area AA2 include an electrically connected light-emitting element 4 and a pixel circuit 5. The pixel circuit 5 is used to transmit driving current to the light-emitting element 4 under the action of signals from the driving signal lines (such as scan signal lines, data signal lines, power signal lines, etc.) on the display panel 1, so as to drive the light-emitting element 4 to emit light. Multiple light-emitting elements 4 may include light-emitting elements of different colors, such as one or more of red light-emitting elements, green light-emitting elements, blue light-emitting elements, and white light-emitting elements, to achieve solid color display or color display of the display panel 1. Furthermore, the light-emitting element 4 may include micro light-emitting diodes (such as Micro-LED, Mini-LED), organic light-emitting diodes (OLED), or other types of light-emitting devices, which are not specifically limited in this embodiment of the invention. Pixel circuit 5 can be, for example, a "2T1C", "7T1C", or "8T1C" structure, where "T" represents a transistor and "C" represents a capacitor. Alternatively, pixel circuit 5 includes an amplitude adjustment module and a pulse width adjustment module. The amplitude adjustment module provides a driving current to the light-emitting element 4 and controls the luminous efficiency of the light-emitting element 4 by adjusting the amplitude of the driving current. The pulse width adjustment module controls the duration for which the amplitude adjustment module provides the driving current to the light-emitting element 4, thereby controlling the light emission duration of the light-emitting element 4. By controlling the light emission duration of the light-emitting element 4 (i.e., adjusting the light emission duty cycle of the light-emitting element 4), the brightness of the light-emitting element 4 can be controlled. This application does not limit the specific type of pixel circuit in its embodiments.

[0015] Furthermore, the first display area AA1 can be the area where the optical sensor 2 is located. That is, compared to the second display area AA2, the first display area AA1 needs to receive more external light so that the optical sensor 2 can receive more light flux, facilitating its corresponding sensing operations. Specifically, the optical sensor 2 can be a device capable of optical recognition, such as an ambient light sensor or a fingerprint sensor. Along the first direction Z, the optical sensor 2 and the first display area AA1 at least partially overlap, allowing external light entering from the first display area AA1 to pass through the optical sensor 2. Based on this, in this embodiment, the display panel 1 includes a first light-transmitting structure 31 disposed in the first display area AA1. The first light-transmitting structure 31 can be used to improve the light transmittance at its location. The first light-transmitting structure 31 includes a first light-transmitting hole 310, through which light can enter the first display area AA1, improving the light transmittance of the first display area AA1.

[0016] Optionally, the first light-transmitting hole 310 can be any shape of hole structure. For example, the first light-transmitting hole 310 can be a circular, quadrilateral or other shapes of hole structure. The specific shape of the first light-transmitting hole 310 is not limited in the embodiments of this application.

[0017] Furthermore, the second display area AA2 differs from the first display area AA1. The second display area AA2 can be a normal display area that does not require additional external light. However, due to the presence of the first light-transmitting structure 31, the light entering the first display area AA1 through the first light-transmitting structure 31 is reflected by the signal lines or components in the first display area AA1. After exiting through the first light-transmitting structure 31, there is a significant difference in the amount of light reflected between the first display area AA1 and the second display area AA2, resulting in a clear boundary between the first display area AA1 and the second display area AA2, affecting the user's viewing experience. Based on this, the display panel 1 provided in this application embodiment also includes a second light-transmitting structure 32 located in the second display area AA2. The second light-transmitting structure 32 includes a second light-transmitting hole 321, through which light can enter the second display area AA2, improving the light transmittance of the first display area AA1. Furthermore, the light entering the second display area AA2 through the second light-transmitting structure 32 is reflected by the signal lines or components in the second display area AA2, and then emitted through the second light-transmitting structure 32, which can provide the reflectivity of the second display area AA2. In this way, the reflectivity of the second display area AA2 and the first display area AA1 can be adjusted to be the same or similar, blurring the boundary between the first display area AA1 and the second display area AA2, and improving the user's viewing experience.

[0018] Optionally, the second light-transmitting hole 321 can be any shape, such as a circle, a quadrilateral, or other shapes. This embodiment does not limit the specific shape of the first light-transmitting hole 310. Furthermore, the shape of the second light-transmitting hole 321 can be the same as or different from the shape of the first light-transmitting hole 310; this embodiment does not limit this.

[0019] Further reference Figure 2 and Figure 3As shown in the embodiment of this application, in the display panel 1, the second light-transmitting structure 32 further includes a transmittance adjustment layer 322. The transmittance adjustment layer 322 at least partially overlaps with the second light-transmitting hole 321. The transmittance adjustment layer 322 can at least adjust the transmittance of a portion of the light entering the second light-transmitting hole 321. In other words, the transmittance and reflectance of the second display area AA2 can be controlled by the transmittance adjustment layer 322. The setting of the transmittance adjustment layer 322 can be reasonably adjusted based on display requirements, ensuring that the setting of the second light-transmitting structure 32 can serve the display requirements of the second display area AA2 while reducing the difference in reflectance between the first display area AA1 and the second display area AA2, thereby improving the display effect of the second display area AA2.

[0020] For example, the area of ​​the second display area AA2 can be much larger than the area of ​​the first display area AA1. The second display area AA2 serves as the main display area of ​​the display panel 1, undertaking its display function. When the ambient light intensity of the display panel 1 is high, such as under sunlight, a large amount of ambient light passes through the second light-transmitting hole 321 into the second display area AA2, resulting in a large amount of reflected ambient light. This excessive reflected light entering the human eye affects the normal reception of the display light from the second display area AA2, making it difficult for the human eye to clearly see the displayed content. Therefore, in this embodiment, the second light-transmitting structure 32 also includes a transmittance adjustment layer 322. The transmittance adjustment layer 322 can adjust the ambient light entering the second display area AA2 and the reflected ambient light, ensuring that while increasing the reflectivity of the second display area AA2, it does not affect the display effect, thus achieving a balance between the reflectivity and display effect of the second display area AA2.

[0021] In summary, the display panel provided in this application, by providing a first light-transmitting structure with a first light-transmitting hole in the first display area, can improve the light transmittance of the first display area, increase the light flux entering the optical sensor, and realize the optical sensing performance of the optical sensor. Furthermore, by providing a second light-transmitting structure with a second light-transmitting hole and a transmittance adjustment layer in the second display area, the second light-transmitting hole can increase the reflectance of the second display area, making the reflectance of the second display area closer to that of the first display area, thereby reducing the reflectance difference between the two display areas and avoiding the visual unevenness problem between the first and second display areas. Simultaneously, the second light-transmitting structure also includes a transmittance adjustment layer, which can adjust the reflectance of the transmittance of the second display area, improving the display effect of the display panel.

[0022] Optional, continue to refer to Figure 1 , Figure 2 and Figure 3As shown, along the first direction Z, the transmittance adjustment layer 322 covers the second light-transmitting hole 321. This arrangement ensures that all light entering the second light-transmitting hole 321 is adjusted by the transmittance adjustment layer 322, further improving the controllable transmittance and reflectance of the second display area AA2 and guaranteeing the display effect of the second display area AA2.

[0023] Optional, continue to refer to Figure 1 , Figure 2 and Figure 3 As shown, the transmittance adjustment layer 322 includes a transmittance adjustment layer of at least one color.

[0024] The transmittance adjustment layer 322 includes at least one color of transmittance adjustment layer, which can be used to filter light of a specific color entering the second light-transmitting hole 321 and to filter reflected light of a specific color escaping from the display panel 1. For example, the transmittance adjustment layer 322 may be at least one of a red transmittance adjustment layer, a green transmittance adjustment layer, and a blue transmittance adjustment layer. Figure 3 The following explanation uses a transmittance adjustment layer 322, which includes a transmittance adjustment layer of one color, as an example.

[0025] When the transmittance adjustment layer 322 is a red transmittance adjustment layer, the light entering the second display area AA2 after being filtered by the transmittance adjustment layer 322 is only red light, and only red light can be emitted from the display panel 1 after being filtered by the transmittance adjustment layer 322. Similarly, when the transmittance adjustment layer 322 is a green transmittance adjustment layer, the light entering the second display area AA2 after being filtered by the transmittance adjustment layer 322 is only green light, and only green light can be emitted from the display panel 1 after being filtered by the transmittance adjustment layer 322. When the transmittance adjustment layer 322 is a blue transmittance adjustment layer, the light entering the second display area AA2 after being filtered by the transmittance adjustment layer 322 is only blue light, and only blue light can be emitted from the display panel 1 after being filtered by the transmittance adjustment layer 322.

[0026] Therefore, the specific settings of the transmittance adjustment layer 322 can be flexibly configured based on the requirements of the display panel 1 for the emitted light color.

[0027] As a feasible implementation method, Figure 4 yes Figure 1 Another enlarged diagram at point B, see reference. Figure 4 As shown, the transmittance adjustment layer 322 includes a first color transmittance adjustment layer 3221, a second color transmittance adjustment layer 3222, and a third color transmittance adjustment layer 3223, and the colors of the first color transmittance adjustment layer 3221, the second color transmittance adjustment layer 3222, and the third color transmittance adjustment layer 3223 are all different.

[0028] Among them, the first color transmittance adjustment layer 3221, the second color transmittance adjustment layer 3222 and the third color transmittance adjustment layer 3223 can be red transmittance adjustment layer, green transmittance adjustment layer and blue transmittance adjustment layer respectively, that is, the transmittance adjustment layer 322 can include three different colors of transmittance adjustment layer.

[0029] Specifically, the first color transmittance adjustment layer 3221 filters light of the first color from entering the second display area AA2, and only light of the first color can be filtered by the first color transmittance adjustment layer 3221 before exiting from the display panel 1. The second color transmittance adjustment layer 3222 filters light of the second color from entering the second display area AA2, and only light of the second color can be filtered by the second color transmittance adjustment layer 3222 before exiting from the display panel 1. The third color transmittance adjustment layer 3223 filters light of the third color from entering the second display area AA2, and only light of the third color can be filtered by the third color transmittance adjustment layer 3223 before exiting from the display panel 1. The transmittance adjustment layer 322 includes a first color transmittance adjustment layer 3221, a second color transmittance adjustment layer 3222, and a third color transmittance adjustment layer 3223. Thus, the light incident on the second display area AA2, after reflection by the display panel 1, results in light of three colors, such as red, green, and blue. The resulting mixture of these three colors generally produces white light, meaning the reflected light from the second display area AA2 is predominantly white. This is the same color as the reflected light from the first display area AA1, ensuring no significant color difference between the reflected light from the first and second display areas AA1, preventing any visible difference between them, and guaranteeing the overall display effect of the display panel 1.

[0030] Optional, continue to refer to Figure 4 As shown, in at least part of the second display area AA2, the number of first color transmittance adjustment layers 3221 is N1, the number of second color transmittance adjustment layers 3222 is N2, and the number of third color transmittance adjustment layers 3223 is N3; wherein, 80%≤N1 / N2≤120%, 80%≤N1 / N3≤120%.

[0031] In order to further ensure that the light reflected from the second display area AA2 is approximately white light, it is necessary to ensure that the luminous flux of the reflected light of the three colors is relatively close. Therefore, the number of transmittance adjustment layers of different colors can be set to be relatively close. For example, the number N1 of the first color transmittance adjustment layer 3221 and the number N2 of the second color transmittance adjustment layer 3222 are set to satisfy 80%≤N1 / N2≤120%, and the number N1 of the first color transmittance adjustment layer 3221 and the number N3 of the third color transmittance adjustment layer 3223 are set to satisfy 80%≤N1 / N3≤120%. This ensures that the number of the first color transmittance adjustment layer 3221 and the number of the second color transmittance adjustment layer 3222 are similar, and the number of the first color transmittance adjustment layer 3221 and the number of the third color transmittance adjustment layer 3223 are similar. In other words, the number of the first color transmittance adjustment layer 3221, the number of the second color transmittance adjustment layer 3222, and the number of the first color transmittance adjustment layer 3221 and the number of the second color transmittance adjustment layer 3222 are all relatively close. This ensures that the luminous flux of the first color light, the second color light, and the third color light are relatively close, and that the reflected light of the second display area AA2 is generally white light, which is consistent with the color of the reflected light of the first display area AA1.

[0032] Furthermore, this application embodiment does not limit the setting position of the first color transmittance adjustment layer 3221, the second color transmittance adjustment layer 3222, and the third color transmittance adjustment layer 3223. Multiple transmittance adjustment layers 32 arranged along the second direction X can be configured to be transmittance adjustment layers 322 of the same color, while multiple transmittance adjustment layers 32 arranged along the third direction Y can include transmittance adjustment layers 322 of different colors; alternatively, multiple transmittance adjustment layers 32 arranged along the third direction Y can be configured to be transmittance adjustment layers 322 of the same color, while multiple transmittance adjustment layers 32 arranged along the second direction X can include transmittance adjustment layers 322 of different colors; furthermore, multiple first color transmittance adjustment layers 3221, multiple second color transmittance adjustment layers 3222, and multiple third color transmittance adjustment layers 3223 can be set relatively evenly and relatively dispersed throughout the entire second display area AA2. The positions of the first color transmittance adjustment layer 3221, the second color transmittance adjustment layer 3222, and the third color transmittance adjustment layer 3223 can be flexibly set according to requirements.

[0033] It is understandable that 80%≤N1 / N2≤120%, where N1 / N2 can be 80%, 82%, 85%, 87%, 88%, 90%, 92%, 94%, 96%, 98%, or 100%.

[0034] 80%≤N1 / N3≤120%, where N1 / N3 can be 80%, 82%, 85%, 87%, 88%, 90%, 92%, 94%, 96%, 98%, or 100%.

[0035] In some embodiments, N1=N2=N3 can be set, that is, N1 / N2=100% and N1 / N3=100%, meaning that the number of the first color transmittance adjustment layer 3221, the number of the second color transmittance adjustment layer 3222, and the number of the third color transmittance adjustment layer 3223 are all the same. This ensures that the amount of light reflected from the transmittance adjustment layers 322 of different colors in the second display area AA2 is the same, thereby ensuring that the reflected light of the second display area AA2 is white light, which is consistent with the color of the reflected light of the first display area AA1. This completely avoids the problem of the first display area AA1 and the second display area AA2 being visible from different perspectives, and ensures the overall display effect of the display panel 1.

[0036] As a feasible implementation method, Figure 5 yes Figure 1 Another enlarged diagram at point B. Figure 6 yes Figure 1 Another enlarged diagram at point B, combined with... Figure 5 and Figure 6 As shown, there are two colors of transmittance adjustment layers 322 with different numbers of layers.

[0037] The number of transmittance adjustment layers 322 with two different colors can be set according to the display requirements of the second display area AA2.

[0038] For example, the number of the first color transmittance adjustment layer 3221 and the number of the second color transmittance adjustment layer 3222 can be different, the number of the second color transmittance adjustment layer 3222 and the number of the third color transmittance adjustment layer 3223 can be different, and the first color transmittance adjustment layer 3221 and the third color transmittance adjustment layer 3223 can be different.

[0039] It is understandable that when there are two different numbers of transmittance adjustment layers 322 of different colors, the amount of light emitted after passing through a larger number of transmittance adjustment layers 322 is higher than the amount of light emitted after passing through a smaller number of transmittance adjustment layers 322. In this way, the emitted color of the second display area AA2 can be biased towards the color of the larger number of transmittance adjustment layers 322.

[0040] Therefore, the technical solution of this application embodiment can be set according to the actual light emission color requirements by setting different numbers of light transmittance adjustment layers with two different colors, so that the light emission amount after passing through the two different color light transmittance adjustment layers is different, and thus the display effect of the second display area AA2 can be set according to the requirements.

[0041] Optional, continue Figure 5 As shown, the first color transmittance adjustment layer 3221 is a red transmittance adjustment layer, and the second color transmittance adjustment layer 3222 and the third color transmittance adjustment layer 3223 are each one of a green transmittance adjustment layer and a blue transmittance adjustment layer; in at least part of the second display area AA2, the number of first color transmittance adjustment layers 3221 is N4, the number of second color transmittance adjustment layers 3222 is N5, and the number of third color transmittance adjustment layers 3223 is N6; wherein, N4 > N5, N4 > N6.

[0042] Specifically, the number of first color transmittance adjustment layers 3221 (N4) and the number of second color transmittance adjustment layers 3222 (N5) are set to satisfy N4 > N5, and the number of first color transmittance adjustment layers 3221 (N4) and the number of third color transmittance adjustment layers 3223 (N5) are set to satisfy N4 > N6. This means that the number of red transmittance adjustment layers is greater than the number of green and blue transmittance adjustment layers, so that the red light emitted from the second display area AA2 after passing through the red transmittance adjustment layer is greater than the green light emitted from the second display area AA2 after passing through the green transmittance adjustment layer, and also greater than the blue light emitted from the second display area AA2 after passing through the blue transmittance adjustment layer.

[0043] Specifically, since the second display area AA2 displays a bluish-green color in the dark, N4 > N5 and N4 > N6 are set so that the red light emitted from the second display area AA2 after passing through the red transmittance adjustment layer is greater than the green light emitted from the second display area AA2 after passing through the green transmittance adjustment layer, and also greater than the blue light emitted from the second display area AA2 after passing through the blue transmittance adjustment layer. This increases the amount of red light emitted to balance the bluish-green color of the second display area AA2 and ensures that the second display area AA2 can display normal white.

[0044] Furthermore, this application does not limit the specific implementation method of achieving N4 > N5 and N4 > N6. It can be that the number of rows in the first color transmittance adjustment layer 3221 is greater than the number of rows in the second color transmittance adjustment layer 3222, and also greater than the number of rows in the third color transmittance adjustment layer 3223. Here, a row of transmittance adjustment layers can be understood as a combination of multiple transmittance adjustment layers arranged along the second direction X. Alternatively, the number of columns in the first color transmittance adjustment layer 3221 can be greater than the number of columns in the second color transmittance adjustment layer 3222, and also greater than the number of columns in the third color transmittance adjustment layer 3223. Here, a column of transmittance adjustment layers can be understood as a combination of multiple transmittance adjustment layers arranged along the third direction Y. Multiple first color transmittance adjustment layers 3221, multiple second color transmittance adjustment layers 3222, and multiple third color transmittance adjustment layers 3223 can be set relatively evenly and relatively dispersed throughout the entire second display area AA2, and the number of first color transmittance adjustment layers 3221 is greater than the number of second color transmittance adjustment layers 3222 and the number of third color transmittance adjustment layers 3223.

[0045] Optional, continue to refer to Figure 6 As shown, the second color transmittance adjustment layer 3222 is a green transmittance adjustment layer, and the first color transmittance adjustment layer 3221 and the third color transmittance adjustment layer 3223 are each one of a red transmittance adjustment layer and a blue transmittance adjustment layer; in at least part of the second display area AA2, the number of first color transmittance adjustment layers 3221 is N7, the number of second color transmittance adjustment layers 3222 is N8, and the number of third color transmittance adjustment layers 3223 is N9; wherein, N8 > N7, N8 > N9.

[0046] Specifically, the number of second color transmittance adjustment layers 3222 (N8) and the number of first color transmittance adjustment layers 3221 (N7) are set to satisfy N8 > N7. The number of second color transmittance adjustment layers 3222 (N8) and the number of third color transmittance adjustment layers 3223 (N9) are set to satisfy N8 > N9. This means that the number of green transmittance adjustment layers is greater than the number of red and blue transmittance adjustment layers, so that the green light emitted from the second display area AA2 after passing through the green transmittance adjustment layer is greater than the red light emitted from the second display area AA2 after passing through the red transmittance adjustment layer, and also greater than the blue light emitted from the second display area AA2 after passing through the blue transmittance adjustment layer.

[0047] Specifically, since the human eye is more sensitive to green light, increasing the amount of green light emitted by display panel 1 under normal display conditions ensures that, from the perspective of human perception, the light output of display panel 1 is increased. Therefore, for high-power display panel 1, increasing green light at the same power consumption can increase the light output of display panel 1 from the perspective of human perception; or, at the same light output perceived by the human eye, it can reduce the display power consumption of display panel 1. Therefore, N8 > N7, N8 > N9, so that the green light emitted from the second display area AA2 after passing through the green transmittance adjustment layer is more than the red light emitted from the second display area AA2 after passing through the red transmittance adjustment layer, and also more than the blue light emitted from the second display area AA2 after passing through the blue transmittance adjustment layer, from the perspective of human perception, this increases the light output of display panel 1 or reduces the power consumption of display panel 1.

[0048] Furthermore, this application does not limit the specific implementation method of achieving N8 > N7 and N8 > N9. It can be that the number of rows in the second color transmittance adjustment layer 3222 is greater than the number of rows in the first color transmittance adjustment layer 3221, and also greater than the number of rows in the third color transmittance adjustment layer 3223. Here, a row of transmittance adjustment layers can be understood as a combination of multiple transmittance adjustment layers 322 arranged along the second direction X. Alternatively, the number of columns in the second color transmittance adjustment layer 3222 can be greater than the number of columns in the first color transmittance adjustment layer 3221, and also greater than the number of columns in the third color transmittance adjustment layer 3223. Here, a column of transmittance adjustment layers can be understood as a combination of multiple transmittance adjustment layers arranged along the third direction Y. Multiple first color transmittance adjustment layers 3221, multiple second color transmittance adjustment layers 3222, and multiple third color transmittance adjustment layers 3223 can be set relatively evenly and relatively dispersed throughout the entire second display area AA2, and the number of second color transmittance adjustment layers 3222 is greater than the number of first color transmittance adjustment layers 3221 and the number of third color transmittance adjustment layers 3223.

[0049] In summary, by setting the second light-transmitting structure 32 to include a light transmittance adjustment layer 322 and reasonably setting the color of the second light transmittance adjustment layer 322, various display requirements of the display panel 1 can be met, and the display effect of the display panel 1 can be guaranteed while ensuring the light transmittance and reflectance of the second display area AA2.

[0050] Optional, continue to refer to Figure 1 and Figure 2As shown, the display panel 1 also includes a light-emitting element 4 and a light-emitting adjustment structure 6 located on the light-emitting side of the light-emitting element 4; the light-emitting adjustment structure 6 includes a color resist layer 61 and a light-shielding layer 62; the color resist layer 61 and the light transmittance adjustment layer 322 are disposed in the same layer, and the first light-transmitting hole 310 and the second light-transmitting hole 321 are disposed in the light-shielding layer 62.

[0051] like Figure 1 and Figure 2 As shown, the light emission adjustment structure 6 is disposed on the light emission side of the light-emitting element 4 and can be used to adjust the light emitted by the light-emitting element 4. Along the first direction Z, the color resist layer 61 of the light emission adjustment structure 6 partially overlaps with the pixel opening of the light-emitting element 4. The color resist layer 61 can filter the light emitted by the light-emitting element 4, improving the color purity of the emitted light. Along the first direction Z, the light-shielding layer 62 does not overlap with the pixel opening of the light-emitting element 4. The light-shielding layer 62 can overlap with the signal lines or components in the display panel 1 to reduce the amount of light reflected by the signal lines or components from the external environment, increase the proportion of light emitted by the display panel 1 itself, and ensure the display effect of the display panel 1. Furthermore, the overlap of the light-shielding layer 62 with the signal lines or components in the display panel 1 can also prevent the signal lines or components from being visible, ensuring the display effect of the display panel 1.

[0052] Furthermore, in some embodiments, the transmittance adjustment layer 322 and the color resist layer 61 are disposed in the same layer and can be prepared in the same process. Such a configuration can further simplify the film layer structure and preparation process of the display panel 1, which is conducive to realizing the design of a thin display panel 1 and improving the preparation efficiency of the display panel 1.

[0053] Furthermore, by placing the first light-transmitting hole 310 and the second light-transmitting hole 321 in the light-shielding layer 62, the separate film layers for the first light-transmitting hole 310 and the second light-transmitting hole 321 are not required, which can simplify the film layer structure of the display panel 1 and facilitate the design of a thinner display panel 1.

[0054] Optional, Figure 7 yes Figure 1 Another enlarged diagram at point B, as shown below. Figure 3 and 7 As shown, the distribution density of the second light-transmitting hole 321 is less than or equal to the distribution density of the first light-transmitting hole 310.

[0055] In this display panel 1, the second display area AA2 serves as the main display area, primarily responsible for outputting the displayed content. To ensure sufficient display area for the light-emitting elements 4, the distribution density of the second light-transmitting holes 321 can be set to be less than or equal to the distribution density of the first light-transmitting holes 310. In other words, the distribution density of the second light-transmitting holes 321 should not exceed that of the first light-transmitting holes 310. This ensures that the second display area AA2 has the second light-transmitting holes 321, allowing for a smaller difference in reflectivity between the second display area AA2 and the first display area AA1. It also ensures that the second display area AA2 has a sufficiently large area to accommodate more light-emitting elements 4, thus guaranteeing the display effect of the second display area AA2 and the entire display panel 1.

[0056] Optional, Figure 8 yes Figure 1 Another enlarged diagram at point B, such as Figure 3 and 8 As shown, the area of ​​at least one second light-transmitting hole 321 is less than or equal to the area of ​​the first light-transmitting hole 310.

[0057] Since the second display area AA2 serves as the main display area in the display panel 1 and bears the primary responsibility for outputting display content, to ensure that the second display area AA2 has sufficient display area to accommodate the light-emitting elements 4, at least one second light-transmitting hole 321 can be configured with an area less than or equal to the area of ​​the first light-transmitting hole 310. In other words, the area of ​​the second light-transmitting hole 321 is not greater than the area of ​​the first light-transmitting hole 310. This ensures that the second display area AA2 has a second light-transmitting hole 321, allowing for a smaller difference in reflectivity between the second display area AA2 and the first display area AA1. It also ensures that the second display area AA2 has a sufficiently large area to accommodate more light-emitting elements 4, thus guaranteeing the display effect of the second display area AA2 and the entire display panel 1.

[0058] Optional, continue to refer to Figure 3As shown, the display panel 1 also includes a plurality of light-emitting elements 4, which include a first-color light-emitting element 41, a second-color light-emitting element 42, and a third-color light-emitting element 43; the display panel 1 also includes a plurality of light-emitting element groups 40, which include a first-color light-emitting element 41 and a third-color light-emitting element 43 arranged along a second direction X, and two second-color light-emitting elements 42 arranged along a third direction Y; the second direction X and the third direction Y intersect and are both parallel to the plane of the substrate in the display panel 1; along the second direction X, a second light-transmitting structure 32 is disposed between the first-color light-emitting element 41 and the third-color light-emitting element 43 in the same light-emitting element group 40; along the third direction Y, a second light-transmitting structure 32 is disposed between the two second-color light-emitting elements 42 in the same light-emitting element group 40.

[0059] In this design, the first color light-emitting element 41 can be a red light-emitting element, the second color light-emitting element 42 can be a green light-emitting element, and the third color light-emitting element 43 can be a blue light-emitting element. Each light-emitting element group 40 includes the first color light-emitting element 41 and the third color light-emitting element 43 arranged along the second direction X, and also includes two second color light-emitting elements 42 arranged along the third direction Y. Along the second direction X, there is a gap between the first color light-emitting element 41 and the third color light-emitting element 43 in the same light-emitting element group 40; along the third direction Y, there is a gap between the two second color light-emitting elements 423 in the same light-emitting element group 40. Therefore, the second light-transmitting structure 32 can be placed within these gaps, or in other words, the second light-transmitting structure 32 is placed within the area enclosed by the four light-emitting elements in the light-emitting element group 40. Thus, the placement of the second light-transmitting structure 32 will not affect the normal placement of the different color light-emitting elements 4, that is, it will not affect the normal display effect of the display panel 1. Thus, by setting the second light-transmitting structure 32 within the same light-emitting element group 40, the display effect of the second display area AA2 can be guaranteed while also minimizing the difference in reflectivity between the second display area AA2 and the first display area AA1. Optional, Figure 9 yes Figure 1 Another enlarged diagram at point B, combined with, as shown in... Figure 9As shown, the display panel 1 also includes a plurality of light-emitting elements 4, which include a first-color light-emitting element 41, a second-color light-emitting element 42, and a third-color light-emitting element 43; the display panel 1 also includes a plurality of light-emitting element columns 400, which include a first light-emitting element column 401 and a second light-emitting element column 402 arranged along a second direction X; in the first light-emitting element column 401, the first-color light-emitting element 41 and the second-color light-emitting element 42 are arranged alternately along a third direction Y; in the second light-emitting element column 402, a plurality of third-color light-emitting elements 43 are arranged along a third direction Y; the second direction X and the third direction Y intersect and are both parallel to the plane of the substrate in the display panel 1; a second light-transmitting structure 32 is disposed between two partially adjacent third-color light-emitting elements 43 in the second light-emitting element column 402.

[0060] Among them, the first color light-emitting element 41, the second color light-emitting element 42 and the third color light-emitting element 43 can be red light-emitting element, green light-emitting element and blue light-emitting element, respectively.

[0061] The display panel 1 also includes multiple light-emitting element columns 400. Each column 400 includes a first light-emitting element column 401 and a second light-emitting element column 402 arranged along a second direction X. The first light-emitting element column 401 includes alternating first-color light-emitting elements 41 and second-color light-emitting elements 42 arranged along a third direction Y. The second light-emitting element column 402 includes multiple third-color light-emitting elements 43 arranged along the third direction Y. Furthermore, the multiple third-color light-emitting elements 43 in the same second light-emitting element column 402 include first-third-color light-emitting elements 431, second-third-color light-emitting elements 432, and third-third-color light-emitting elements 433. Along the third direction Y, the distance between the first-third-color light-emitting elements 431 and the second-third-color light-emitting elements 432 is greater than the distance between the second-third-color light-emitting elements 431 and the second-third-color light-emitting elements 432. In this case, the second light-transmitting structure 32 can be disposed between the first-third-color light-emitting elements 431 and the second-third-color light-emitting elements 432, that is, disposed between the two third-color light-emitting elements 43 with a larger spacing. Thus, the setting of the second light-transmitting structure 32 will not affect the normal setting of different color light-emitting elements, that is, it will not affect the normal display effect of the display panel 1. In this way, by setting the second light-transmitting structure 32 between two adjacent and relatively far-spaced third color light-emitting elements 43 in the second light-emitting element column 402, the display effect of the second display area AA2 can be guaranteed while taking into account the small difference in reflectivity between the second display area AA2 and the first display area AA1.

[0062] Based on the same inventive concept, embodiments of this application also provide a display device, including a display module. Figure 10 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. Figure 10 As shown, the display device 100 includes the display module in the above embodiments. Therefore, the display device provided in this application also has the beneficial effects described in the above embodiments, which will not be repeated here. For example, the display device may be an electronic device such as a mobile phone, computer, smart wearable device (e.g., smartwatch), and in-vehicle display device. This application does not limit this.

[0063] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A display module, characterized in that, Including display panels and optical sensors; The display panel includes a display area, which includes a first display area and a second display area. Along a first direction, the optical sensor at least partially overlaps with the first display area; the first direction is the thickness direction of the display module. The display panel further includes a first light-transmitting structure disposed in the first display area and a second light-transmitting structure disposed in the second display area; The first light-transmitting structure includes a first light-transmitting hole, and the second light-transmitting structure includes a second light-transmitting hole and a transmittance adjustment layer disposed on one side of the second light-transmitting hole; along the first direction, the transmittance adjustment layer and the second light-transmitting hole at least partially overlap.

2. The display module according to claim 1, characterized in that, The transmittance adjustment layer includes at least one color transmittance adjustment layer.

3. The display module according to claim 2, characterized in that, The transmittance adjustment layer includes a first color transmittance adjustment layer, a second color transmittance adjustment layer, and a third color transmittance adjustment layer, each with a different color.

4. The display module according to claim 3, characterized in that, In at least a portion of the second display area, the number of the first color transmittance adjustment layers is N1, the number of the second color transmittance adjustment layers is N2, and the number of the third color transmittance adjustment layers is N3; Among them, 80%≤N1 / N2≤120%, 80%≤N1 / N3≤120%.

5. The display module according to claim 4, characterized in that, N1=N2=N3.

6. The display module according to claim 3, characterized in that, The number of transmittance adjustment layers differs for the two colors.

7. The display module according to claim 6, characterized in that, The first color transmittance adjustment layer is a red transmittance adjustment layer, and the second color transmittance adjustment layer and the third color transmittance adjustment layer are each one of a green transmittance adjustment layer and a blue transmittance adjustment layer; In at least a portion of the second display area, the number of the first color transmittance adjustment layers is N4, the number of the second color transmittance adjustment layers is N5, and the number of the third color transmittance adjustment layers is N6; Among them, N4 > N5, N4 > N6.

8. The display module according to claim 6, characterized in that, The second color transmittance adjustment layer is a green transmittance adjustment layer, and the first color transmittance adjustment layer and the third color transmittance adjustment layer are each one of a red transmittance adjustment layer and a blue transmittance adjustment layer; In at least a portion of the second display area, the number of the first color transmittance adjustment layers is N7, the number of the second color transmittance adjustment layers is N8, and the number of the third color transmittance adjustment layers is N9; Among them, N8 > N7, N8 > N9.

9. The display module according to claim 1, characterized in that, The display panel also includes a light-emitting element and a light-emitting adjustment structure located on the light-emitting side of the light-emitting element; The light emission adjustment structure includes a color resist layer and a light-shielding layer; The color resist layer and the light transmittance adjustment layer are disposed in the same layer, and the first light-transmitting hole and the second light-transmitting hole are disposed in the light-shielding layer.

10. The display module according to claim 1, characterized in that, The distribution density of the second light-transmitting hole is less than or equal to the distribution density of the first light-transmitting hole.

11. The display module according to claim 1, characterized in that, The area of ​​at least one of the second light-transmitting holes is less than or equal to the area of ​​the first light-transmitting hole.

12. The display module according to claim 1, characterized in that, The display panel also includes multiple light-emitting elements, which include a first-color light-emitting element, a second-color light-emitting element, and a third-color light-emitting element; The display panel further includes multiple light-emitting element groups, each light-emitting element group including a first-color light-emitting element and a third-color light-emitting element arranged along a second direction, and two second-color light-emitting elements arranged along a third direction; the second direction and the third direction intersect and are both parallel to the plane where the substrate is located in the display panel; Along the second direction, the second light-transmitting structure is disposed between the first color light-emitting element and the third color light-emitting element in the same light-emitting element group; along the third direction, the second light-transmitting structure is disposed between two second color light-emitting elements in the same light-emitting element group.

13. The display module according to claim 1, characterized in that, The display panel also includes multiple light-emitting elements, which include a first-color light-emitting element, a second-color light-emitting element, and a third-color light-emitting element; The display panel further includes multiple light-emitting element columns, which include a first light-emitting element column and a second light-emitting element column arranged along a second direction; in the first light-emitting element column, the first color light-emitting element and the second color light-emitting element are arranged alternately along a third direction; in the second light-emitting element column, multiple third color light-emitting elements are arranged along the third direction; the second direction and the third direction intersect and are both parallel to the plane of the substrate in the display panel; The second light-transmitting structure is disposed between two partially adjacent third color light-emitting elements in the second light-emitting element column.

14. The display module according to claim 1, characterized in that, Along the first direction, the transmittance adjustment layer covers the second light-transmitting hole.

15. A display device, characterized in that, Includes the display module as described in any one of claims 1-14.

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