Display module and display device

Abstract

The invention provides a display module and a display device.The display module comprises a display panel, a monitoring assembly and a driving chip, the monitoring assembly is arranged on one side of the display panel, and the monitoring assembly is configured to obtain pressure data of the display panel based on the deformation quantity of the display panel; the driving chip is electrically connected with the monitoring assembly, and the driving chip is used for receiving pressure data output by the monitoring assembly; the display panel is configured to be in a dark-state display mode, and the driving chip is configured to output gray-scale voltage to the display panel according to pressure data of the monitoring assembly, so that gray-scale voltage compensation is carried out on a stress area of the display panel, the light leakage phenomenon caused by deformation of the display panel is reduced, the picture uniformity in the dark-state display mode is improved, and the display quality is improved. And the display quality and the visual experience of the display panel are enhanced.

Description

Technical Field

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

[0002] In order to meet consumers' demands for high screen-to-body ratio, thin and light, and immersive display experiences, display technologies are rapidly developing towards ultra-narrow bezels, large sizes, and thin and light. As the thickness of the display panel decreases, its overall mechanical strength decreases accordingly, resulting in the display panel being easily affected by external forces during manufacturing, transportation, assembly, and use, thus causing deformation.

[0003] When the display panel is deformed, the thickness of the liquid crystal layer changes, thereby affecting the orientation of liquid crystal molecules and causing abnormal light transmittance of the display panel. When the display panel is in the dark state, the backlight cannot be completely blocked, and part of the light is refracted, scattered, or internally reflected at the edge area of the display panel and leaks out, forming a light leakage phenomenon, resulting in uneven display at the edge of the display panel. Summary of the Invention

[0004] Embodiments of this application provide a display module and a display device to improve the light leakage problem of the display module.

[0005] To achieve the above functions, the technical solutions provided by the embodiments of this application are as follows:

[0006] Embodiments of this application provide a display module, including:

[0007] A display panel;

[0008] A monitoring component disposed on one side of the display panel, the monitoring component being configured to obtain pressure data of the display panel based on the deformation amount of the display panel;

[0009] A driving chip electrically connected to the monitoring component, the driving chip being used to receive the pressure data output by the monitoring component;

[0010] Wherein, the display panel is configured in a dark display mode, and the driving chip is configured to output a gray-scale voltage to the display panel according to the pressure data of the monitoring component.

[0011] In one embodiment, the display module includes a display area and a non-display area disposed around the display area. The non-display area includes a first non-display sub-area and a second non-display sub-area disposed opposite to each other in a first direction, and a third non-display sub-area and a fourth non-display sub-area disposed opposite to each other in a second direction;

[0012] Wherein, the monitoring component is located in at least one of the first non-display sub-region, the second non-display sub-region, the third non-display sub-region, and the fourth non-display sub-region.

[0013] In one embodiment, the display area includes a plurality of first display sub-regions, and the plurality of first display sub-regions are located on a side of the display area close to the non-display area;

[0014] The monitoring component includes a plurality of first monitoring modules arranged at intervals, and one of the first monitoring modules is arranged corresponding to one of the first display sub-regions;

[0015] Wherein, the display panel is configured in a dark display mode, and any one of the first monitoring modules transmits the pressure data of the display panel obtained by it to the driving chip, and the driving chip is configured to output a corresponding gray-scale voltage to the first display sub-region corresponding to the first monitoring module according to the pressure data of the first monitoring module.

[0016] In one embodiment, the plurality of first display sub-regions are arranged around the non-display area, and the plurality of first monitoring modules are arranged around the display area;

[0017] Wherein, the display module includes a plurality of first connection lines arranged at intervals, the first connection lines are located in the non-display area, one of the first connection lines corresponds to one of the first monitoring modules, and one of the first monitoring modules is electrically connected to the driving chip through one of the first connection lines.

[0018] In one embodiment, the distance between two adjacent first monitoring modules is greater than or equal to 1 millimeter and less than or equal to 10 millimeters.

[0019] In one embodiment, the display area includes a plurality of second display sub-regions, and the second display sub-regions are located on a side of the first display sub-region away from the non-display area;

[0020] The monitoring component includes a plurality of second monitoring modules arranged at intervals, and one of the second monitoring modules is arranged in one of the second display sub-regions and / or one of the first display sub-regions;

[0021] Wherein, the display panel is configured in a dark display mode, and any one of the second monitoring modules sends the pressure data of the display panel obtained by it to the driving chip, and the driving chip is configured to output a corresponding gray-scale voltage to the second display sub-region and / or the first display sub-region corresponding to the second monitoring module according to the pressure data of the second monitoring module.

[0022] In one embodiment, the area of the second monitoring module is larger than the area of the first monitoring module.

[0023] In one embodiment, the display module includes a plurality of second connection lines arranged at intervals, the second connection lines are located in the display area, and one second connection line corresponds to one second monitoring module;

[0024] One second monitoring module is electrically connected to the driving chip through one second connection line;

[0025] Wherein, the display area includes a plurality of sub-pixels, a plurality of the sub-pixels along a first direction form a sub-pixel row, and a plurality of the sub-pixels along a second direction form a sub-pixel column, and the second connection lines are located between adjacent sub-pixel rows and / or between adjacent sub-pixel columns.

[0026] In one embodiment, the display module further includes a functional film layer, the functional film layer includes a first polarizer and a second polarizer, the first polarizer is disposed on a side of the display panel where light exits, and the second polarizer is disposed on a side of the display panel where backlight is provided;

[0027] Wherein, the monitoring component is disposed on a side of the first polarizer away from the display panel; or the monitoring component is disposed on a side of the second polarizer away from the display panel.

[0028] An embodiment of the present application provides a display device, including the display module according to any one of the above embodiments.

[0029] The beneficial effects of the embodiments of the present application are as follows: The embodiments of the present application provide a display module and a display device. The display module includes a display panel, a monitoring component, and a driving chip. The monitoring component is disposed on one side of the display panel and is configured to obtain pressure data of the display panel based on the deformation amount of the display panel; the driving chip is electrically connected to the monitoring component and is used to receive the pressure data output by the monitoring component; the display panel is configured in a dark display mode, and the driving chip is configured to output a grayscale voltage to the display panel according to the pressure data of the monitoring component, so as to perform grayscale voltage compensation on the stressed area of the display panel, reduce the light leakage phenomenon caused by the deformation of the display panel, improve the picture uniformity in the dark display mode, and enhance the display quality and visual experience of the display panel. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] To more fully understand the present application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, where the same reference numerals in the following description represent the same parts.

[0032] Figure 1 Schematic structural diagram of the display module provided by an embodiment of the present application;

[0033] Figure 2 Provided by an embodiment of the present application Figure 1 The first partial cross-sectional view corresponding to the A-A` position in

[0034] Figure 3 The first planar structural diagram of the display module provided by an embodiment of the present application;

[0035] Figure 4 Timing diagram of the sub-pixels provided by an embodiment of the present application;

[0036] Figure 5 Provided by an embodiment of the present application Figure 1 The second partial cross-sectional view corresponding to the A-A` position in

[0037] Figure 6 The second planar structural diagram of the display module provided by an embodiment of the present application;

[0038] Figure 7 The third planar structural diagram of the display module provided by an embodiment of the present application;

[0039] Figure 8 The fourth planar structural diagram of the display module provided by an embodiment of the present application;

[0040] Figure 9 Schematic structural diagram of the display device provided by an embodiment of the present application;

[0041] Figure 10 Provided by an embodiment of the present application Figure 9 The cross-sectional view corresponding to the B-B` position in

[0042] Explanation of reference numerals:

[0043] 1 - Display module; 11 - Display panel; 12 - Functional film layer; 13 - Flexible circuit board; 14 - Driving chip; 15 - Monitoring component; 16 - Encapsulation structure; 17 - Optically clear adhesive; 18 - First connection line; 19 - Second connection line;

[0044] 10 - Sub - pixel; 100 - Display area; 110 - First display sub - area; 120 - Second display sub - area; 130 - Step sub - area; 200 - Non - display area; 210 - First non - display sub - area; 220 - Second non - display sub - area; 230 - Third non - display sub - area; 240 - Fourth non - display sub - area; 11A - First substrate; 11B - Second substrate; 11C - Liquid crystal layer; 11D - Bonding end; 12A - First polarizer; 12B - Second polarizer; 15A - First monitoring module; 15B - Second monitoring module;

[0045] 2 - Display device; 21 - Backlight module; 22 - Middle frame. Detailed implementation manners

[0046] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the orientation words such as "upper" and "lower" usually refer to the upper and lower in the actual use or working mode of the device, specifically the drawing direction in the drawings; and "inner" and "outer" refer to the outline of the device.

[0047] In addition, the terms "first" and "second" are only used for descriptive purposes, and the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0048] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection or a detachable connection; it may be a mechanical connection, an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0049] The following disclosure provides many different embodiments for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0050] Please refer to Figures 1 to 3 ; This embodiment provides a display module 1, and the display module 1 includes a display panel 11, a functional film layer 12, a flexible circuit board 13, a driving chip 14, a monitoring component 15, and a packaging structure 16; wherein, one end of the flexible circuit board 13 is electrically connected to the display panel 11, and the other end of the flexible circuit board 13 is electrically connected to the driving chip 14.

[0051] The display panel 11 may be a liquid crystal display panel (Liquid Crystal Display, LCD), and the display panel 11 includes a first substrate 11A and a second substrate 11B which are oppositely arranged, and a liquid crystal layer 11C located between the first substrate 11A and the second substrate 11B; wherein, the first substrate 11A and the second substrate 11B are sealed to form a liquid crystal cell to accommodate the liquid crystal layer 11C, and the liquid crystal layer 11C includes a plurality of liquid crystal molecules.

[0052] Specifically, the first substrate 11A may be an array substrate, the first substrate 11A includes a first electrode, the second substrate 11B may be a color filter substrate, the second substrate 11B includes a second electrode, and the liquid crystal layer 11C includes a plurality of liquid crystal molecules; wherein, when an image is displayed, the first electrode and the second electrode apply an electric field to the liquid crystal layer 11C, and by controlling the twist of the liquid crystal molecules in the liquid crystal layer 11C, the polarization direction of the light from the backlight source is changed, so as to control whether to allow the light intensity after passing through the liquid crystal cell, thereby displaying a corresponding image.

[0053] The first substrate 11A includes a bonding end 11D that is not covered by the second substrate 11B, a stepped sub-region 130 is formed on one side of the second substrate 11B and the first substrate 11A close to the flexible circuit board 13, the bonding end 11D is located in the stepped sub-region 130, and the bonding end 11D is electrically connected to the flexible circuit board 13 in the stepped sub-region 130.

[0054] It should be noted that, in this embodiment, the display panel 11 may adopt the Pad Bending technology, that is, after the flexible circuit board 13 is led out from the bonding end 11D of the display panel 11, it is bent along a set bending path to the back of the display panel 11 to optimize circuit connection and space utilization. This embodiment is described by taking this technical solution as an example, but it is not limited thereto. Other display panels with similar structures or functions may also apply the technical solution described in this application.

[0055] The functional film layer 12 includes a first polarizer 12A and a second polarizer 12B, and both the first polarizer 12A and the second polarizer 12B are disposed in contact with the surface of the display panel 11; specifically, the first polarizer 12A is disposed on the light-emitting side of the display panel 11, the second polarizer 12B is disposed on the backlight side of the display panel 11, and the polarization directions of the first polarizer 12A and the second polarizer 12B are perpendicular to each other to achieve polarization control.

[0056] The monitoring component 15 is disposed on one side of the display panel 11, and the monitoring component 15 is configured to obtain the pressure data of the display panel 11 based on the deformation amount of the display panel 11; the driving chip 14 is electrically connected to the monitoring component 15, and the driving chip 14 is used to receive the pressure data output by the monitoring component 15; wherein, the display panel 11 is configured in a dark state display mode, and the driving chip 14 is configured to output a grayscale voltage to the display panel 11 according to the pressure data of the monitoring component 15, so as to compensate the grayscale voltage of the stressed area of the display panel 11, reduce the light leakage phenomenon caused by the deformation of the display panel 11, improve the picture uniformity in the dark state display mode, and further enhance the display quality and visual experience of the display panel 11.

[0057] Specifically, the monitoring component 15 includes, but is not limited to, a piezoelectric sensor. The piezoelectric sensor works based on the piezoelectric effect. When the display panel 11 deforms due to an externally applied pressure, the internal charge distribution of the piezoelectric sensor changes, thereby generating pressure data proportional to the deformation amount. Since this conversion mechanism does not require an external power supply, it has the advantages of fast response speed and high sensitivity, and is suitable for real-time pressure monitoring of the display panel 11.

[0058] The pressure data output by the piezoelectric sensor can be transmitted to the driving chip 14 through the flexible circuit board 13. The driving chip 14 determines the light leakage amount of the display panel 11 under the current pressure according to the mapping relationship between the pressure data and the light leakage amount, and the driving chip 14 is configured to output a corresponding grayscale voltage to the display panel 11 according to the light leakage amount of the display panel 11 to compensate or correct the display abnormality caused by light leakage.

[0059] The mapping relationship between the pressure data and the light leakage amount satisfies: ΔLv = k1·F + c1; where F is the pressure data output by the piezoelectric sensor; ΔLv is the light leakage amount of the display panel; k1 is the proportionality coefficient of the change in the light leakage amount caused by the unit pressure change; c1 represents the reference light leakage amount when the pressure is zero.

[0060] It should be noted that in the process of establishing the mapping relationship, the following method can be adopted: during the assembly and testing process, use a pressure sensor to measure the pressure data F of the display panel under different applied pressures, and at the same time use an optical detection device (such as a light intensity meter) to synchronously measure the corresponding light leakage amount ΔLv; by collecting multiple groups of (F, ΔLv) data samples and substituting them into the linear model ΔLv = k1F + c1, use mathematical methods such as the least squares method to fit the specific values of the proportionality coefficient k1 and the reference light leakage amount c1.

[0061] It can be understood that through the above method, an accurate correspondence between the pressure data and the light leakage amount can be established, so that the driving chip 14 can accurately calculate and adjust the light leakage amount of the display panel 11 based on the detected pressure data.

[0062] Furthermore, the driving chip 14 is configured to output a corresponding gray-scale voltage to the display panel 11 according to the light leakage amount of the display panel 11 to compensate or correct the display abnormality caused by light leakage;

[0063] It should be noted that in this embodiment, the deviation (ΔLv) between the actual brightness of each first display sub-region (such as A1 to A3) and the corresponding preset gray-scale standard brightness (such as Lv0 to Lv20) is used as the compensation basis; where ΔLv satisfies the following relational expression:

[0064] ΔLv = L (实际亮度) -L (标准亮度) ; where L (实际亮度) represents the actual brightness of each first display sub-region in the current working state, and L (标准亮度) represents the preset standard brightness corresponding to the gray-scale of this first display sub-region; when ΔLv > 0, it indicates that the actual brightness is higher than the standard brightness, and the gray-scale voltage needs to be reduced for compensation; when ΔLv < 0, it indicates that the actual brightness is lower than the standard brightness, and the gray-scale voltage needs to be increased for compensation.

[0065] Specifically, to better understand this embodiment, the gray-scale voltage compensation method will be specifically described below. The compensation algorithm of the gray-scale voltage includes but is not limited to:

[0066] 1. In the low gray scale range (e.g., Lv0 to Lv10), the mapping relationship between the light leakage amount and the gray scale voltage of the display panel satisfies: Vcomp = Vx - k2·ΔLv; where Vcomp is the compensated gray scale voltage, Vx is the standard gray scale voltage without compensation corresponding to the standard gray scale, k2 is the compensation coefficient, and the compensation coefficient can be obtained through experimental calibration and is related to the characteristics of the display panel.

[0067] It can be understood that by reducing the gray scale voltage, the brightness of the first display sub-region is returned to the standard value, thereby effectively compensating for the brightness deviation caused by light leakage.

[0068] 2. In the high gray scale range (e.g., Lv10 to Lv20), the mapping relationship between the light leakage amount and the gray scale voltage of the display panel satisfies: Vcomp = Vx - α·k2·ΔLv; where Vcomp is the compensated gray scale voltage, Vx is the standard gray scale voltage without compensation corresponding to the standard gray scale, k2 is the compensation coefficient, α is the attenuation factor, and α ∈ [0.2, 0.5].

[0069] It can be understood that by introducing the attenuation factor α to reduce the compensation amplitude, it is possible to avoid the display inconsistency problem caused by excessive adjustment in the high gray scale region, thereby ensuring the uniformity and stability of the display effect under high gray scales.

[0070] Furthermore, taking the actual compensation situation of three first display sub-regions as an example, the specific example of the mapping relationship is shown in Table 1 below:

[0071] Table 1

[0072] Partition Light leakage amount △Lv(%) Target gray level Lv_x Vx(V) Vcomp(V) A1 +12 (High brightness) Lv5 3.2 2.9 (Reduced by 9.4%) A2 +8 Lv5 3.2 3.0 (Reduced by 6.3%) A3 -5 (Low brightness) Lv15 5.8 2.9 (Increased by 5.2%)

[0073] Among them, in Table 1, "+" indicates that the brightness is too high, and "-" indicates that the brightness is too low. The driving chip 14 determines the light leakage amount ΔLv of the display panel 11 under the current pressure according to the mapping relationship between the pressure data and the light leakage amount. The target gray scale Lv_x is the standard gray scale level set according to the display design requirements. The original gray scale voltage Vx is the gray scale voltage set corresponding to Lv_x under standard conditions. The compensated voltage Vcomp is calculated according to the above gray scale voltage compensation algorithm; among them, the compensation amplitude is the ratio of the voltage change, usually expressed in percentage, and is used to quantify the compensation effect.

[0074] It should be noted that the original gray scale voltage Vx refers to the standard gray scale voltage value preset to make the display panel 11 reach the designed brightness corresponding to the target gray scale Lv_x under the conditions of no external pressure, no abnormal light leakage, and in a standard environment (including standard temperature and standard humidity). The original gray scale voltage Vx can be determined through the brightness calibration process when the display panel leaves the factory, and this embodiment will not elaborate on this.

[0075] In practical applications, the driving chip 14 can preset the compensation parameters for different sub-regions, and during the display process, dynamically adjust the gray-scale voltage of the corresponding sub-regions in real time according to the light leakage measured by the pressure sensor, so as to achieve fine-grained optimization of brightness uniformity and improve the consistency and display quality of the overall display panel.

[0076] Furthermore, as Figure 4 shown, if the light leakage in a certain area is high, the driving chip 14 will record the sub-pixel coordinates and pressure gradient distribution of this area by analyzing the real-time pressure data in the Nth frame. In the (N + 1)th frame, based on the dynamic compensation algorithm, an adaptive gray-scale voltage adjustment will be applied to the light-leakage area, specifically by reducing the driving voltage amplitude of the corresponding sub-pixels and shortening the effective light-emitting time through timing control, so as to reduce local brightness overflow while maintaining color consistency, reduce the brightness to balance the overall display, and thus compensate for the light leakage of the display panel 11.

[0077] Furthermore, when the display panel 11 is subjected to external pressure, the display panel 11 deforms, the thickness of the liquid crystal layer 11C changes, which affects the orientation of the liquid crystal molecules, resulting in abnormal light transmittance of the display panel 11; specifically, when the display panel 11 is configured in a dark-state display mode and the display panel 11 is subjected to external pressure, the light emitted by the backlight source cannot be completely blocked, and part of the light will generate a phase difference when passing through the first substrate 11A and the second substrate 11B, resulting in a relatively obvious light-leakage phenomenon; it can be understood that in this embodiment, the monitoring component 15 is configured to obtain the pressure data of the display panel 11 based on the deformation amount of the display panel 11, convert the pressure data into an electrical signal and transmit it to the driving chip 14, the driving chip 14 receives the pressure data electrical signal, obtains the light leakage amount of the display panel 11, and can perform gray-scale voltage compensation on the display panel 11 according to the magnitude of the light leakage amount.

[0078] The shape of the encapsulation structure 16 matches the shape of the functional film layer 12. The encapsulation structure 16 can be attached to the side of the functional film layer 12 away from the display panel 11 through an optically clear adhesive 17 (Optically Clear Adhesive, OCA) to ensure high light transmittance and excellent bonding performance; specifically, the encapsulation structure 16 includes, but is not limited to, a cover glass (Cover Glass, CG) to provide protection against the external environment and prevent moisture and oxygen from invading the functional film layer 12, thereby improving the reliability and service life of the display panel 11.

[0079] Please continue to combine Figures 1 to 3; In one embodiment, the display module 1 includes a display area 100 and a non-display area 200 disposed around the display area 100. The non-display area 200 includes a first non-display sub-area 210 and a second non-display sub-area 220 disposed opposite to each other in a first direction X, and a third non-display sub-area 230 and a fourth non-display sub-area 240 disposed opposite to each other in a second direction Y.

[0080] The monitoring component 15 is disposed between the first polarizer 12A and the optical transparent adhesive 17, and the optical transparent adhesive 17 covers the monitoring component 15, so as to fill the height difference between the monitoring component 15 and the first polarizer 12A by using the optical transparent adhesive 17, eliminating the optical path distortion caused by the height difference; at the same time, improving the flatness of the display panel 11, reducing the spacing fluctuation between the monitoring component 15 and the encapsulation structure 16, and improving the accuracy of strain detection.

[0081] The monitoring component 15 is located in at least one of the first non-display sub-area 210, the second non-display sub-area 220, the third non-display sub-area 230, and the fourth non-display sub-area 240, so as to be able to monitor the pressure changes in different edge areas of the display panel 11 in real time, accurately identify the stress position, and adjust the gray-scale voltage of the corresponding area according to the strain, reducing the light leakage phenomenon caused by stress, and improving the picture uniformity and display quality in the dark display mode.

[0082] It should be noted that, in this embodiment, the X direction in Figure 2 and Figure 3 is taken as the first direction, and the Y direction is taken as the second direction as an example to illustrate the technical means of this embodiment.

[0083] Specifically, the monitoring component 15 is disposed in the non-display area 200, so that the monitoring component 15 does not affect the light transmittance and display uniformity of the display area 100, ensuring the integrity of the display area 100; in addition, since the non-display area 200 does not include structures such as pixels, electrodes, or liquid crystal molecules, the monitoring component 15 can directly and stably sense the deformation of the display panel 11, thereby improving the detection accuracy of the monitoring component 15 for the strain.

[0084] Further, the flexible circuit board 13 is disposed between the monitoring component 15 and the driving chip 14. The monitoring component 15 is located within the first non-display sub-region 210, and the flexible circuit board 13 is disposed close to the first non-display sub-region 210. One side of the flexible circuit board 13 is electrically connected to the monitoring component 15, and the other side of the flexible circuit board 13 is electrically connected to the driving chip 14. Through the concealed layout of the non-display area 200, the monitoring component 15 can continuously detect local pressure or deformation data of the display panel 11, and through the fast response ability of the driving chip 14, it can real-time analyze the change trend of the light leakage amount of the display panel 11 (such as the backlight non-uniformity caused by pressure in the edge area), so as to dynamically adjust the pixel driving signal, achieve precise optical compensation, and avoid the deterioration of the light leakage problem due to external force. At the same time, by disposing the monitoring component 15 on the side of the display panel 11 close to the flexible circuit board 13, the signal transmission path length can be reduced, signal attenuation and interference can be reduced, and the real-time feedback speed of pressure data can be improved.

[0085] It should be noted that the monitoring component 15 being disposed between the first polarizer 12A and the optical transparent adhesive 17, and the monitoring component 15 being located within the first non-display sub-region 210 are only for illustrative purposes. In another embodiment, for example Figure 5 As shown, the monitoring component 15 is disposed on the side of the second polarizer 12B away from the display panel 11, and the second polarizer 12B and the monitoring component 15 can be seamlessly bonded through an optical adhesive, so as to achieve a compact spatial layout.

[0086] Further, the display area 100 includes a plurality of first display sub-regions 110, and the plurality of first display sub-regions 110 are located on the side of the display area 100 close to the non-display area 200. The monitoring component 15 includes a plurality of first monitoring modules 15A, and one first monitoring module 15A corresponds to one first display sub-region 110.

[0087] Wherein, the display panel 11 is configured in a dark state display mode. Any first monitoring module 15A transmits the pressure data of the display panel 11 obtained by it to the driving chip 14, and the driving chip 14 is configured to output a corresponding gray-scale voltage to the first display sub-region 110 corresponding to the first monitoring module 15A according to the pressure data of the first monitoring module 15A, so as to compensate for the local light leakage of the display panel 11.

[0088] Specifically, the display area 100 includes a plurality of first display sub-areas 110, and the plurality of first display sub-areas 110 are distributed on one side of the display area 100 close to the non-display area 200. Each first display sub-area 110 is provided with a corresponding first monitoring module 15A; wherein, the first monitoring module 15A includes, but is not limited to, a piezoelectric sensor. The first monitoring module 15A is located within the non-display area 200, and the first monitoring component 15 is physically adjacent to the corresponding first display sub-area 110.

[0089] When an external force is applied to the area of the display panel 11 where the first monitoring module 15A is provided, the display panel 11 is deformed. The first monitoring module 15A is configured to obtain the pressure data of the display panel 11 based on the amount of deformation of the display panel 11, and convert the pressure data into an electrical signal and transmit it to the driving chip 14. The driving chip 14 receives the pressure data output by the first monitoring module 15A to obtain the light leakage amount of the display panel 11 in the first display sub-area 110, and the driving chip 14 is configured to output a corresponding gray-scale voltage to the first display sub-area 110 corresponding to the first monitoring module 15A according to the light leakage amount of the display panel 11, so as to achieve light leakage compensation for the display panel 11.

[0090] It can be understood that in this embodiment, the edge of the display area 100 is divided into a plurality of independent first display sub-areas 110, and each first display sub-area 110 is provided with a corresponding first monitoring module 15A. The first monitoring module 15A is located within the non-display area 200, so that the light leakage or deformation area of the display panel 11 can be accurately located, avoiding interference of touch operations or display signals on pressure detection; at the same time, the driving chip 14 is configured to obtain the light leakage amount of the display panel 11 in each first display sub-area 110 according to the pressure data electrical signals output by each first monitoring module 15A, and the driving chip 14 is configured to output independent gray-scale voltages to each first display sub-area 110 according to the light leakage amount of the display panel 11 in each first display sub-area 110, so as to achieve local light leakage compensation for the display panel 11.

[0091] Please combine Figure 1 、 Figure 2 and Figure 6; In one embodiment, the multiple first display sub - regions 110 are arranged around the non - display region 200, and the multiple first monitoring modules 15A are arranged around the display region 100; wherein, the display module 1 includes multiple first connection lines 18 arranged at intervals, the first connection lines 18 are located within the non - display region 200, one first connection line 18 corresponds to one first monitoring module 15A, and one first monitoring module 15A is electrically connected to the driving chip 14 through one first connection line 18, so as to realize independent detection and signal transmission of the deformation amounts of different regions of the display panel 11, reduce signal interference, improve the accuracy and response speed of pressure data, and further improve the light leakage positioning accuracy, and maintain the stability and uniformity of the display panel 11.

[0092] Specifically, the multiple first display sub - regions 110 surround the edge of the non - display region 200 in a circular shape, the multiple first monitoring modules 15A are located within the first non - display sub - region 210, the second non - display sub - region 220, the third non - display sub - region 230, and the fourth non - display sub - region 240, and the multiple first monitoring modules 15A are arranged around the display region 100 in a circular arrangement. Each first monitoring module 15A is electrically connected to one end of the flexible circuit board 13 through an independent first connection line 18, and the other end of the flexible circuit board 13 is electrically connected to the driving chip 14, so as to ensure that each first monitoring module 15A can independently collect the pressure data of the corresponding region, and transmit it to the flexible circuit board 13 through the independent first connection line 18, and then transmitted to the driving chip 14 by the flexible circuit board 13, improving the stability and accuracy of data transmission.

[0093] It can be understood that, compared with setting the first monitoring module 15A on one side, in this embodiment, by arranging the multiple first display sub - regions 110 around the non - display region 200 and arranging the multiple first monitoring modules 15A around the display region 100, the pressure changes in different regions of the display panel 11 can be monitored in real time, and the pressure data is transmitted to the driving chip 14 through the independent first connection line 18, so that the driving chip 14 adjusts the gray - scale voltage for the stressed region, thereby effectively suppressing the light leakage phenomenon caused by the deformation of the display panel 11, improving the display uniformity, avoiding signal cross - interference at the same time, reducing the wiring complexity, and improving the reliability and detection accuracy of the display module 1.

[0094] Furthermore, the distance between two adjacent first monitoring modules 15A is greater than or equal to 1 mm and less than or equal to 10 mm. By controlling the distance between two adjacent first monitoring modules 15A, when the display panel 11 is deformed, fine monitoring of the deformation amount can be achieved, making the acquisition of pressure data more accurate, avoiding signal interference and increased wiring complexity caused by too high a density of the first monitoring modules 15A, thereby improving the stability and reliability of the detection system; at the same time, avoiding collision and friction between two adjacent first monitoring modules 15A due to being too close, which affects the stability and service life of the monitoring component 15.

[0095] Please refer to Figure 1 , Figure 2 and Figure 7 ; In one embodiment, the display area 100 includes a plurality of second display sub-areas 120, and the second display sub-areas 120 are located on the side of the first display sub-area 110 away from the non-display area 200; the monitoring component 15 includes a plurality of second monitoring modules 15B, and one second monitoring module 15B is correspondingly arranged in one second display sub-area 120. The second monitoring module is configured to obtain the pressure data of the display panel 11 based on the deformation amount of the display panel 11; wherein, the display panel 11 is configured in a dark state display mode, and the driving chip 14 is configured to output a corresponding gray-scale voltage to the second display sub-area 120 corresponding to the second monitoring module 15B according to the pressure data of the second monitoring module 15B, so as to realize independent gray-scale adjustment of the second display sub-area 120, and enable the display panel 11 to dynamically adjust the display effect based on the pressure data in the second display sub-area 120 in the dark state display mode.

[0096] Specifically, the second monitoring module 15B includes, but is not limited to, a transparent piezoelectric sensor; the display panel 11 is configured in a dark state display mode. By arranging one second monitoring module 15B in one second display sub-area 120, the second monitoring module 15B can sense the pressure change in the second display sub-area 120 corresponding to it; any second monitoring module 15B sends the pressure data of the display panel 11 it obtains to the driving chip 14, and the driving chip 14 is configured to obtain the light leakage amount of the display panel 11 in each second display sub-area 120 according to the pressure data electrical signals output by each first monitoring module 15A, and the driving chip 14 is configured to output an independent gray-scale voltage to each second display sub-area 120 according to the light leakage amount of the display panel 11 in each second display sub-area 120, so as to realize light leakage compensation of the display panel 11 in the second display sub-area 120.

[0097] The area of the second monitoring module 15B is larger than that of the first monitoring module 15A, thereby improving the reliability and detection accuracy of the display panel 11 within the display area 200; it can be understood that since the multiple second monitoring modules 15B work independently and respectively correspond to their respective second display sub-areas 120, the driving chip 14 can perform grayscale adjustment on each of the second display sub-areas 120 separately, avoiding errors caused by overall adjustment and improving the accuracy of deformation amount detection.

[0098] Please refer to Figure 1 , Figure 2 and Figure 8 ; In one embodiment, one second monitoring module 15B is also correspondingly arranged within one first display sub-area 110, and the second monitoring module is configured to obtain the pressure data of the display panel 11 based on the deformation amount of the display panel 11; wherein, the display panel 11 is configured in a dark display mode, and the driving chip 14 is configured to output corresponding grayscale voltages into the first display sub-area 110 corresponding to the second monitoring module 15B according to the pressure data of the second monitoring module 15B, thereby realizing independent grayscale adjustment of the first display sub-area 110, so that the display panel 11 can dynamically adjust the display effect based on the pressure data within the second display sub-area 120 in the dark display mode.

[0099] It should be noted that in this embodiment, the second monitoring module 15B is located within the first display sub-area 110 and the second monitoring module 15B is located within the second display sub-area 120, that is, within one first display sub-area 110 and one second display sub-area 120, one second monitoring module 15B is respectively arranged.

[0100] Specifically, the display panel 11 is configured in a dark display mode. By arranging one second monitoring module 15B within one first display sub-area 110, the second monitoring module 15B can sense the pressure change within the first display sub-area 110 corresponding to it; any second monitoring module 15B sends the pressure data of the display panel 11 obtained by it to the driving chip 14, and the driving chip 14 is configured to obtain the light leakage amount of the display panel 11 within each first display sub-area 110 according to the pressure data electrical signals output by each second monitoring module 15B, and the driving chip 14 is configured to output independent grayscale voltages to each first display sub-area 110 according to the light leakage amount of the display panel 11 within each first display sub-area 110, thereby realizing light leakage compensation of the display panel 11 within the first display sub-area 110.

[0101] It can be understood that the second monitoring module 15B and the first monitoring module 15A work together, enabling the monitoring component 15 to more accurately sense the pressure distribution in the first display sub-region 110, and dynamically adjusting the grayscale voltage of each first display sub-region 110 based on real-time data to achieve independent grayscale compensation for local regions; wherein, the first monitoring module 15A is used to monitor the deformation amount of the display panel 11 in the non-display region 200, and the second monitoring module 15B is used to directly monitor the pressure change inside the first display sub-region 110. The combination of the two enables the driving chip 14 to comprehensively analyze the pressure data, thereby further optimizing the light leakage compensation of the display panel 11 in the dark display mode.

[0102] Furthermore, the display module 1 includes a plurality of second connection lines 19 arranged at intervals, and the second connection lines 19 are located in the display region 100. One second connection line 19 corresponds to one second monitoring module 15B, and one second monitoring module 15B is electrically connected to the driving chip 14 through one second connection line 19; wherein, the display region 100 further includes a plurality of sub-pixels 10. A plurality of sub-pixels 10 along the first direction X form sub-pixel 10 rows, and a plurality of sub-pixels 10 along the second direction Y form sub-pixel 10 columns. The second connection lines 19 are located between adjacent sub-pixel 10 rows and / or between adjacent sub-pixel 10 columns, thereby improving the stability of signal transmission, and the second connection lines 19 do not occupy the openings of the sub-pixels 10, increasing the aperture ratio and maintaining a high-quality display effect; at the same time, reducing the occlusion of the display region 100 by the second connection lines 19 and avoiding affecting the effective light-emitting area of the sub-pixels 10.

[0103] It can be understood that in this embodiment, by arranging the second connection lines 19 between adjacent sub-pixel 10 rows and / or between adjacent sub-pixel 10 columns, the second connection lines 19 do not occupy the openings of the sub-pixels 10, increasing the aperture ratio and maintaining a high-quality display effect; at the same time, it can also reduce signal interference and parasitic capacitance effects, improving the stability and anti-interference ability of data transmission.

[0104] Please combine Figure 1 、 Figure 2 、 Figure 9 and Figure 10; This embodiment further provides a display device 2, which includes a backlight module 21 and the display module 1 described in any of the above embodiments; wherein, the backlight module 21 is located on the backlight side of the display panel 11, and the brightness display of the display panel 11 is realized by the light source provided by the backlight module 21. The backlight module 21 includes, but is not limited to, one of a direct-lit backlight module or a side-lit backlight module. In this embodiment, the side-lit backlight module is taken as an example for illustration.

[0105] Further, the display device 2 may further include a middle frame 22, which is combined with the display module 1 as a whole to provide support, fixation and protection for the display module 1.

[0106] It can be understood that the display module 1 has been described in detail in the above embodiments and will not be repeated here.

[0107] In specific applications, the display device 2 may be at least one of devices with a display function such as a smart phone, a tablet computer, a mobile phone, a video telephone, an e-book reader, a desktop computer, a laptop computer, a netbook, a workstation, a server, a personal digital assistant, a portable media player, an MP3 player, a mobile medical device, a camera, a game console, a digital camera, a car navigator, an electronic billboard, an ATM or a wearable device.

[0108] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0109] The above has introduced in detail a display module and a display device provided by the embodiments of the present application. Specific examples are used herein to elaborate the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display module, characterized in that: include: Display panel; A monitoring component, disposed on one side of the display panel, the monitoring component being configured to obtain pressure data of the display panel based on a deformation amount of the display panel; A driving chip, electrically connected to the monitoring component, and configured to receive pressure data output by the monitoring component; Wherein, the display panel is configured to be in a dark display mode, and the driving chip is configured to output a grayscale voltage to the display panel according to the pressure data of the monitoring component.

2. The display module according to claim 1, characterized in that: The display module comprises a display area and a non-display area arranged around the display area, wherein the non-display area comprises a first non-display sub-area and a second non-display sub-area arranged opposite to each other along a first direction, and a third non-display sub-area and a fourth non-display sub-area arranged opposite to each other along a second direction; Wherein, the monitoring component is located in at least one of the first non-display sub-area, the second non-display sub-area, the third non-display sub-area and the fourth non-display sub-area.

3. The display module according to claim 2, characterized in that: The display area includes a plurality of first display sub-areas, and the plurality of first display sub-areas are located at a side of the display area close to the non-display area; The monitoring component includes a plurality of first monitoring modules arranged at intervals, and one of the first monitoring modules is arranged with one of the first display sub-areas; In which, the display panel is configured as a dark display mode, and any first monitoring module transmits the pressure data of the display panel obtained by it to the driving chip, and the driving chip is configured to output a corresponding grayscale voltage to the first display sub-area corresponding to the first monitoring module according to the pressure data of the first monitoring module.

4. The display module according to claim 3, characterized in that: The plurality of first display sub-areas are arranged around the non-display area, and the plurality of first monitoring modules are arranged around the display area; Wherein, the display module includes a plurality of first connection lines arranged at intervals, the first connection lines are located in the non-display area, one first connection line corresponds to one first monitoring module, and one first monitoring module is electrically connected to the driving chip through one first connection line.

5. The display module according to claim 4, characterized in that: The distance between two adjacent first monitoring modules is greater than or equal to 1 mm and less than or equal to 10 mm.

6. The display module according to claim 3, characterized in that: The display area includes a plurality of second display sub-areas, and the second display sub-areas are located at a side of the first display sub-area away from the non-display area; The monitoring component comprises a plurality of second monitoring modules arranged at intervals, wherein one second monitoring module is arranged in one second display sub-area and / or one first display sub-area; In which, the display panel is configured as a dark display mode, and any second monitoring module sends the pressure data of the display panel obtained by it to the driving chip, and the driving chip is configured to output a corresponding grayscale voltage to the second display sub-area and / or the first display sub-area corresponding to the second monitoring module based on the pressure data of the second monitoring module.

7. The display module according to claim 6, characterized in that: The area of ​​the second monitoring module is larger than that of the first monitoring module.

8. The display module according to claim 7, characterized in that: The display module includes a plurality of second connection lines arranged at intervals, the second connection lines are located in the display area, and one second connection line corresponds to one second monitoring module; A second monitoring module is electrically connected to the driving chip via a second connecting line; The display area includes a plurality of sub-pixels, wherein the plurality of sub-pixels form sub-pixel rows along a first direction, and the plurality of sub-pixels form sub-pixel columns along a second direction, and the second connecting line is located between adjacent sub-pixel rows and / or adjacent sub-pixel columns.

9. The display module according to any one of claims 1 to 8, characterized in that: The display module further includes a functional film layer, and the functional film layer includes a first polarizer and a second polarizer, wherein the first polarizer is arranged on a light emitting side of the display panel, and the second polarizer is arranged on a backlight side of the display panel; Wherein, the monitoring component is arranged on a side of the first polarizer away from the display panel; or the monitoring component is arranged on a side of the second polarizer away from the display panel.

10. A display device, characterized in that: Comprising a display module as described in any one of claims 1 to 9.

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