Display module and display device

Abstract

The embodiment of the utility model provides a display module and a display device, relates to the technical field of display, and is used for tracing influence factors causing performance failure of the display module, prolonging the service life of the display module and improving the quality of the display module. The display module comprises a display panel, a back plate assembly, a cover plate and at least one environment detection module. Wherein the display panel comprises a light emitting surface and a backlight surface; the backboard assembly is located on one side of the backlight face of the display panel. The cover plate is positioned on one side of the light emitting surface of the display panel; the environment detection module is at least arranged on one layer of the back plate assembly or arranged on the surface of the cover plate; the environment detection module is configured to change color according to the change of the physical quantity of the environment; the environmental physical quantity comprises humidity, pressure, pH value, harmful ion concentration and temperature.

Description

Technical Field

[0001] The present disclosure relates to the field of display technologies, and in particular, to a display module and a display device. Background Art

[0002] With the rapid development of display technologies, display technologies such as liquid crystal display devices (abbreviation: LCD), organic light emitting display devices (abbreviation: OLED), quantum dot light emitting display devices (abbreviation: QLED), and mini / micro light emitting display devices (abbreviation: MLED) have been widely used in people's daily lives. For example, smartphones, wearable watches, televisions, laptop computers, and in-vehicle displays have gradually become widespread in people's lives. With the development of display technologies, the requirements for the product performance, service life, durability, and reliability of display devices are also getting higher and higher. Summary of the Utility Model

[0003] The purpose of the embodiments of the present disclosure is to provide a display module and a display device, which are used to trace the influencing factors that may cause the performance failure of the display module, quickly analyze the reasons for the performance failure of the display module, and promptly take corresponding solutions to improve the life and quality of the display module.

[0004] To achieve the above purpose, the embodiments of the present disclosure provide the following technical solutions:

[0005] On the one hand, a display module is provided. The display module includes a display panel, a backplane assembly, a cover plate, and at least one environmental detection module. The display panel includes a light-emitting surface and a backlight surface. The backplane assembly is located on the backlight surface side of the display panel. The cover plate is located on the light-emitting surface side of the display panel. The environmental detection module is at least disposed on one layer of the backplane assembly or on the surface of the cover plate; the environmental detection module is configured to change color according to changes in environmental physical quantities; the environmental physical quantities include: humidity, pressure, pH value, harmful ion concentration, temperature.

[0006] Setting up the above-mentioned environment detection module can achieve real-time detection of the working environment of the display module, that is, detection of environmental physical quantities. The environment detection module is configured to change color according to changes in environmental physical quantities. Among them, the color change includes changes in different colors and changes in the shade of the same color. The environment detection module can present color changes according to changes in environmental physical quantities. Operators can intuitively see the color changes presented by the environment detection module. According to the color changes or their shades of the environment detection module, the reasons for the defects or performance failures of the display module caused by the influence of environmental physical quantities can be quickly judged, and then relevant solutions can be taken.

[0007] In some embodiments, the environment detection module includes one or more of a pressure sensing detection module, a humidity detection module, an acid-base detection module, a harmful ion detection module, and a temperature detection module; the environment detection module includes: a detection base layer and a detection reagent layer provided on one side of the detection base layer; the detection reagent layer is configured to react under the action of environmental physical quantities and present color changes; the environment detection module is attached to one layer of the backplane assembly or the cover plate through the detection base layer.

[0008] In some embodiments, the environment detection module includes a humidity detection module, and the humidity detection module is configured to change color according to changes in environmental humidity.

[0009] In some embodiments, the humidity detection module includes a first humidity detection module; the first humidity detection module is configured to change the shade of color according to changes in environmental humidity, and the change in color shade is reversible.

[0010] In some embodiments, the humidity detection module includes a second humidity detection module; the second humidity detection module is configured to change the shade of color according to changes in environmental humidity; the second humidity detection module includes a humidity detection base layer and a humidity reaction layer stacked, and the humidity reaction layer is configured to react with the dew condensation in the environment and present a change in color shade.

[0011] In some embodiments, the environment detection module includes a pressure sensing detection module, and the pressure sensing detection module is configured to change color according to the pressure received at its location; the pressure sensing detection module includes: a pressure sensing detection base layer, a donor layer provided on the pressure sensing detection base layer, and a receiving layer provided on the side of the donor layer away from the pressure sensing detection base layer; the donor layer and the receiving layer are configured to react under the action of pressure to form an indentation, and the donor layer is configured to change from a first color to a second color when the indentation is formed, and the shade of the second color is related to the pressure received by the pressure sensing detection module.

[0012] In some embodiments, the environmental detection module includes an acid-base detection module configured to change color according to the environmental acidity; the acid-base detection module includes: an acid-base detection base layer and an acid-base reagent layer disposed on the acid-base detection base layer; the acid-base reagent layer is configured to change from an initial color to a first reaction color in an acidic environment and change from the initial color to a second reaction color in a basic environment.

[0013] In some embodiments, the environmental detection module further includes a harmful ion detection module configured to change the color shade according to the harmful ion concentration; the heavy ion detection module includes: an ion detection base layer; and an ion reaction layer disposed on the ion detection base layer, the ion reaction layer being configured to react with harmful ions and exhibit a change in color shade.

[0014] In some embodiments, the environmental detection module further includes a temperature detection module configured to change the color shade according to the temperature change in the environment; the temperature detection module includes: a temperature detection base layer and a temperature reaction layer disposed on the temperature detection base layer; the temperature reaction layer includes a reaction substance configured to volatilize as the temperature increases.

[0015] In some embodiments, the display module further includes a particle detection film layer; the particle detection film layer is disposed on at least one layer of the backplane assembly and is configured to adsorb suspended particles in the environment.

[0016] In some embodiments, the particle detection film layer includes: a particle detection base layer and a particle adsorption layer disposed on the particle detection base layer, the particle adsorption layer being configured to adsorb suspended particles in the environment.

[0017] In some embodiments, the backplane assembly includes: a support assembly layer disposed on one side of the backlight surface of the display panel; a flip chip film connected to the display panel, the flip chip film being configured to be bent to the side of the support assembly layer away from the display panel; a driving chip and a flexible circuit board disposed on the side of the support assembly layer away from the display panel; the cover plate includes a central area and a peripheral area, the peripheral area being located around the central area; the environmental detection module is disposed at a position to be detected of the display module; the position to be detected includes at least one of the surface of the support assembly layer away from the display panel, on the driving chip, the surface of the flexible circuit board away from the display panel, the surface of the peripheral area of the cover plate and close to the display panel, and the surface of the flip chip film away from the side of the support assembly layer away from the display panel.

[0018] In some embodiments, at least two environment detection modules are disposed at the position to be detected of the display module. The types of the at least two environment detection modules are different, and the at least two environment detection modules are stacked; alternatively, the at least two environment detection modules are staggeredly tiled.

[0019] In some embodiments, at least one environment detection module is disposed at the position to be detected of the display module; when one environment detection module is disposed at the position to be detected of the display module, the ratio of the total area of the environment detection module to the area of the region of the position to be detected is greater than 60%; when a plurality of environment detection modules are disposed at the position to be detected of the display module, the plurality of environment detection modules are arranged in an array and spaced apart; alternatively, the plurality of environment detection modules are in contact with each other, and the ratio of the total area of the plurality of environment detection modules to the area of the region of the position to be detected is greater than 60%.

[0020] In some embodiments, at least one environment detection module is disposed on the side of the support component layer away from the display panel. The at least one environment detection module includes at least one of a pressure sensing detection module, a humidity detection module, an acid-base detection module, and a harmful particle detection module; and / or, the particle detection module layer is disposed on the side of the support component layer away from the display panel.

[0021] In some embodiments, at least one environment detection module is disposed on the driving chip. The at least one environment detection module includes at least one of a humidity detection module, a pH detection module, a pressure sensing detection module, and a temperature detection module.

[0022] In some embodiments, at least one environment detection module is disposed on the side of the flexible printed circuit board away from the display panel; the at least one environment detection module includes at least one of a pressure sensing detection module, a humidity detection module, a temperature detection module, and an acid-base detection module.

[0023] In some embodiments, at least one environment detection module is disposed in the peripheral area of the cover plate and close to the side of the display panel; at least one of the environment detection modules includes at least one of a pressure sensing detection module, an acid-base detection module, and a humidity detection module.

[0024] In some embodiments, at least one environment detection module is disposed on the surface of the chip-on-film away from the support component layer; the at least one environment detection module includes at least one of an acid-base detection module and a humidity detection module.

[0025] In some embodiments, the display module includes a perforated area, and at least one through hole is provided in the perforated area; the through hole penetrates at least the support component layer and the display panel; at least one of the environmental detection modules is further disposed on a surface of the support component layer away from the display panel and located in the perforated area, and the support component layer is located around the through hole.

[0026] In some embodiments, at least one of the environmental detection modules includes at least one of a humidity detection module and a pressure sensing detection module.

[0027] In some embodiments, the support component layer includes a support layer and a first water absorption layer. A plurality of grooves are formed on a side of the support layer away from the display panel, and adjacent two of the plurality of grooves are connected; the first water absorption layer is disposed in the plurality of grooves.

[0028] In some embodiments, the material of the first water absorption layer is water-absorbing resin.

[0029] In some embodiments, the surface of the first water absorption layer is flush with the surface of the portion of the support layer without grooves;

[0030] The ratio of the thickness of the first water absorption layer to the thickness of the support layer is greater than 0 and less than 0.5.

[0031] In some embodiments, the orthographic projection of each of the plurality of grooves on the display panel is in a cross shape, a square shape or a honeycomb shape.

[0032] In some embodiments, the support component layer further includes: a second water absorption layer, which is disposed on a side of the support layer and the first water absorption layer away from the display panel, and the second water absorption layer is a water-permeable foam.

[0033] In some embodiments, the support component layer further includes: a third water absorption layer, which is disposed on a side of the support layer close to the display panel, and the third water absorption layer is a buffer foam; both the second water absorption layer and the third water absorption layer have a plurality of porous holes; a first adhesive layer, which is disposed on a side of the third protective layer close to the display panel.

[0034] In some embodiments, the display module further includes at least one functional film layer located between the cover plate and the display panel; the cover plate includes a central area and a peripheral area disposed around the central area; the orthographic projection of the film layer closest to the cover plate among the at least one functional film layer on the cover plate is located in the peripheral area; a flow blocking groove is formed on one side of the cover plate close to the display panel, and the flow blocking groove is located in the peripheral area; the display module further includes: a waterproof adhesive disposed between the cover plate and the display panel and around the functional film layer, and a boundary portion of the waterproof adhesive away from the functional film layer is located in the flow blocking groove.

[0035] In some embodiments, the material of the waterproof adhesive is a black fluorinated liquid.

[0036] In some embodiments, the display module further includes a first ink layer and a second ink layer on one side of the cover plate close to the display panel, the first ink layer is relatively farther from the display panel than the second ink layer, and both the first ink layer and the second ink layer are disposed in the peripheral area; a humidity color-changing coating, the humidity color-changing coating is in the same layer as the first ink layer and is located on a side of the first ink layer away from the central area; the second ink layer covers the junction position of the humidity color-changing coating and the first ink layer.

[0037] On the other hand, a display device is provided. The display device includes: the display module according to any one of the above embodiments.

[0038] The above display device has the same structure and beneficial technical effects as the display module provided in some of the above embodiments, and will not be elaborated herein. Description of the Drawings

[0039] In order to more clearly illustrate the technical solutions in the present disclosure, the drawings required to be used in some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings in the following description are only the drawings of some embodiments of the present disclosure, and those of ordinary skill in the art can also obtain other drawings based on these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limitations on the actual dimensions of the products, the actual processes of the methods, the actual timings of the signals, etc. involved in the embodiments of the present disclosure.

[0040] Figure 1 It is a planar structure diagram of a display device according to some embodiments of the present disclosure;

[0041] Figure 2A It is a cross-sectional structure diagram of a display module according to some embodiments of the present disclosure;

[0042] Figure 2B It is another cross-sectional structure diagram of a display module according to some embodiments of the present disclosure;

[0043] Figure 2C Another cross-sectional structure diagram of the display module according to some embodiments of the present disclosure;

[0044] Figure 2D Another cross-sectional structure diagram of the display module according to some embodiments of the present disclosure;

[0045] Figure 2E Structure diagram of the environmental detection module according to some embodiments of the present disclosure;

[0046] Figure 3A Structure diagram of the pressure sensing detection module provided by some embodiments of the present disclosure;

[0047] Figure 3B Color change comparison diagram of the pressure sensing detection module provided by some embodiments of the present disclosure;

[0048] Figure 4A Structure diagram of the second humidity detection module provided by some embodiments of the present disclosure;

[0049] Figure 4B Color change comparison diagram of the second humidity detection module provided by some embodiments of the present disclosure;

[0050] Figure 5A Structure diagram of the acid-base detection module provided by some embodiments of the present disclosure;

[0051] Figure 5B Color change comparison diagram of the acid-base detection module provided by some embodiments of the present disclosure;

[0052] Figure 6A Structure diagram of the harmful ion detection module provided by some embodiments of the present disclosure;

[0053] Figure 6B Color change comparison diagram of the harmful ion detection module provided by some embodiments of the present disclosure;

[0054] Figure 7A Structure diagram of the temperature detection module provided by some embodiments of the present disclosure;

[0055] Figure 7B Color change comparison diagram of the temperature detection module provided by some embodiments of the present disclosure;

[0056] Figure 8 Structure diagram of the ion adsorption film layer provided by some embodiments of the present disclosure;

[0057] Figure 9A Stacked structure diagram of two environmental detection modules provided by some embodiments of the present disclosure;

[0058] Figure 9BStacked structure diagrams of two environmental detection modules provided by some embodiments of the present disclosure;

[0059] Figure 9C Another stacked structure diagram of two environmental detection modules provided by some embodiments of the present disclosure;

[0060] Figure 9D Yet another stacked structure diagram of two environmental detection modules provided by some embodiments of the present disclosure;

[0061] Figure 9E Another stacked structure diagram of two environmental detection modules provided by some embodiments of the present disclosure;

[0062] Figure 9F Yet another stacked structure diagram of two environmental detection modules provided by some embodiments of the present disclosure;

[0063] Figure 10A Structure diagram of the detection drive chip of the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0064] Figure 10B Another structure diagram of the detection drive chip of the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0065] Figure 10C Yet another structure diagram of the detection drive chip of the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0066] Figure 11A Structure diagram of the detection support component layer of the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0067] Figure 11B Another structure diagram of the detection support component layer of the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0068] Figure 11C Yet another structure diagram of the detection support component layer of the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0069] Figure 11D Another structure diagram of the detection support component layer of the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0070] Figure 11E Yet another structure diagram of the detection support component layer of the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0071] Figure 11FAnother structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the support component layer;

[0072] Figure 12A Structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the flexible printed circuit board;

[0073] Figure 12B Another structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the flexible printed circuit board;

[0074] Figure 12C Another structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the flexible printed circuit board;

[0075] Figure 12D Another structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the flexible printed circuit board;

[0076] Figure 12E Another structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the flexible printed circuit board;

[0077] Figure 13A Structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the cover plate;

[0078] Figure 13B Another structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the cover plate;

[0079] Figure 13C Another structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the cover plate;

[0080] Figure 13D Another structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the cover plate;

[0081] Figure 14A Structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the chip-on-film;

[0082] Figure 14B Another structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the chip-on-film;

[0083] Figure 14C Another structural diagram of the environmental detection module of the display module provided by some embodiments of the present disclosure for detecting the chip-on-film;

[0084] Figure 14DAnother structural diagram of the flip-chip film detected by the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0085] Figure 14E Another structural diagram of the flip-chip film detected by the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0086] Figure 15A Structural diagram of the punching area detected by the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0087] Figure 15B Another structural diagram of the punching area detected by the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0088] Figure 15C Another structural diagram of the punching area detected by the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0089] Figure 15D Another structural diagram of the punching area detected by the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0090] Figure 15E Another structural diagram of the punching area detected by the environmental detection module of the display module provided by some embodiments of the present disclosure;

[0091] Figure 16A Structural diagram of the first water absorption layer and the support layer provided by some embodiments of the present disclosure;

[0092] Figure 16B Another structural diagram of the first water absorption layer and the support layer provided by some embodiments of the present disclosure;

[0093] Figure 16C Another structural diagram of the first water absorption layer and the support layer provided by some embodiments of the present disclosure;

[0094] Figure 17A Another structural diagram of the first water absorption layer and the support layer provided by some embodiments of the present disclosure;

[0095] Figure 17B Structural diagram of the support component layer provided by some embodiments of the present disclosure;

[0096] Figure 18A Structural diagram of the cover plate in the display module provided by some embodiments of the present disclosure;

[0097] Figure 18B provided by some embodiments of the present disclosure Figure 18A Cross-sectional structural diagram obtained by taking a cross-section along the section line EE;

[0098] Figure 19A Another structural diagram of the cover plate of the display module provided by some embodiments of the present disclosure;

[0099] Figure 19B Provided by some embodiments of the present disclosure Figure 19A The structural diagram of the humidity indication layer and the ink layer obtained by making a cross-section along the section line FF in Detailed implementation manners

[0100] Next, the technical solutions in some embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present disclosure.

[0101] Unless otherwise required by the context, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular form "comprises" and the present participle form "comprising", are interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples", etc., are intended to indicate that the specific features, structures, materials or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms are not necessarily referring to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any suitable manner.

[0102] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "a plurality" is two or more.

[0103] In describing some embodiments, the terms "coupled" and "connected" and their derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral one; it can be directly connected or indirectly connected through an intermediate medium. The term "coupled" indicates, for example, that two or more components have direct physical contact or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content herein.

[0104] "At least one of A, B, and C" has the same meaning as "at least one of A, B, or C", and both include the following combinations of A, B, and C: only A, only B, only C, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C.

[0105] "A and / or B" includes the following three combinations: only A, only B, and the combination of A and B.

[0106] As used herein, depending on the context, the term "if" is optionally interpreted to mean "when" or "upon" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if it is determined that..." or "if [the stated condition or event] is detected" is optionally interpreted to mean "when it is determined that..." or "in response to determining..." or "when [the stated condition or event] is detected" or "in response to detecting [the stated condition or event]".

[0107] The use of "configured to" or "adapted to" herein means open and inclusive language, which does not exclude devices that are configured to or adapted to perform additional tasks or steps.

[0108] In addition, the use of "based on" means open and inclusive because a process, step, calculation, or other action "based on" one or more of the stated conditions or values may, in practice, be based on additional conditions or values beyond the stated ones.

[0109] As used herein, "about", "substantially", or "approximately" includes the stated value and the average value within an acceptable deviation range of the specific value, where the acceptable deviation range is determined by a person of ordinary skill in the art considering the measurement being discussed and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system).

[0110] As used herein, "parallel", "perpendicular", and "equal" include the stated cases and cases similar to the stated cases, where the range of the similar cases is within an acceptable deviation range, and the acceptable deviation range is determined by a person of ordinary skill in the art considering the measurements being discussed and the errors associated with the measurements of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism can be, for example, within 5 degrees; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity can also be, for example, within 5 degrees. "Equal" includes absolute equality and approximate equality, where the acceptable deviation range for approximate equality can be, for example, that the difference between the two equal values is less than or equal to 5% of either one of them.

[0111] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can be that the layer or element is directly on the other layer or substrate, or there can be an intermediate layer between the layer or element and the other layer or substrate.

[0112] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of layers and the area of regions are exaggerated for clarity. Accordingly, variations in the shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances can be expected. Therefore, the exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but rather include shape deviations caused by, for example, manufacturing. For example, an etched region shown as rectangular will generally have curved features. Thus, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shape of the regions of the device and are not intended to limit the scope of the exemplary embodiments.

[0113] Currently, with the development of OLED display technology and its applications in fields such as mobile phone mobile wearables, scenario-based office work, in-vehicle, and aviation entertainment, OLED display has gradually become the mainstream. Correspondingly, the requirements for the product performance and service life of OLED display technology are getting higher and higher, and at the same time, the internal working environment of the product is becoming more and more complex; the humidity condensation, acids and alkalis, heavy ions, temperature, etc. in the environment where the whole machine is located, as well as the harsh environments during its assembly, transportation, and use, will all have an important impact on the product performance and service life. When these factors exceed the rated range that the product can withstand, it may lead to a decline in product performance or permanent damage. Since the inside of the product housing is a closed environment, it is impossible to directly confirm its internal working environment. When the product is affected by environmental factors and causes defects or performance failures, it is impossible to quickly trace the triggering factors and take timely solutions.

[0114] Based on this, some embodiments of the present disclosure provide a display module and a display device. By integrating multiple detection layers in the display module and observing the changes in the states of the detection layers in real time, the influencing factors that may cause the performance failure of the display module can be traced, the reasons for the performance failure of the display module can be quickly analyzed, and corresponding solutions can be taken in a timely manner, thereby improving the lifespan and quality of the display module.

[0115] The display module and the display device provided by the present disclosure are introduced separately below.

[0116] As Figure 1 shown, some embodiments of the present disclosure provide a display device 1000. The display device 1000 may be any device that displays whether it is moving (e.g., video) or stationary (e.g., still image), and whether it is text or image. More specifically, it is expected that the embodiments can be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal digital assistants (abbreviated as PDA in English), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, video cameras, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, augmented reality (AR) devices, virtual reality (VR) devices, cockpit controllers and / or displays, displays of camera views (e.g., displays of rear view cameras in vehicles), electronic photos, electronic billboards or signs, projectors, architectural structures, packaging, and aesthetic structures (e.g., displays of images of a piece of jewelry), etc., any product or component with a display function.

[0117] Exemplarily, as Figure 1 shown, the display device 1000 may be any product or component with a display function, such as a television, a laptop computer, a tablet computer, a mobile phone, a personal digital assistant (abbreviated as PDA in English), a navigator, an in-vehicle display, a flight display, a wearable device, a virtual reality (abbreviated as VR in English) device, etc.

[0118] The above-mentioned display device 1000 may be any one of a flat panel display device, a curved display device, a foldable display device, or a rollable display device.

[0119] Taking the above display device 1000 as an example of a flat panel display device, some embodiments of the present disclosure will be schematically described. However, the embodiments of the present disclosure are not limited thereto, and any other display device 1000 can also be considered, as long as the same technical idea is applied.

[0120] In some embodiments, as Figure 1 shown, the display device 1000 includes a display module 100. The display module 100 includes a display panel 10.

[0121] The display panel 10 can be: an organic light-emitting diode display panel, a quantum dot light-emitting diode display panel, a micro light-emitting diode display panel, a liquid crystal display panel, a plasma display panel, a field emission display panel, an electro-wetting display panel, or an electrophoretic display panel, etc. The embodiments of the present disclosure do not make specific limitations herein.

[0122] Taking the above display panel 10 as an example of an organic light-emitting diode display panel, some embodiments of the present disclosure will be schematically described. However, the embodiments of the present disclosure are not limited thereto, and any other display panel can also be considered, as long as the same technical idea is applied.

[0123] In some embodiments, as Figure 2A shown, the display module 100 further includes a backplane assembly 2, a cover plate 30, and at least one environmental detection module 1. The display panel 10 includes a light-emitting surface 10a and a backlight surface 10b, and the light-emitting surface 10a and the backlight surface 10b are disposed opposite to each other. The backplane assembly 2 is located on the backlight surface 10b side of the display panel 10, and the cover plate 30 is located on the light-emitting surface 10a side of the display panel 10. The environmental detection module 1 is configured to change color according to changes in environmental physical quantities, where the environmental physical quantities include humidity, pressure, pH value, harmful ion concentration, and temperature.

[0124] It should be noted that by setting the above environmental detection module 1, real-time detection of the working environment of the display module 100 can be achieved, that is, detection of environmental physical quantities. The environmental detection module 1 is configured to change color according to changes in environmental physical quantities, where the color change includes changes in different colors and changes in the depth of the same color. The environmental detection module 1 can present color changes according to changes in environmental physical quantities. Operators can intuitively see the color changes presented by the environmental detection module. According to the color changes or the depth thereof of the environmental detection module 1, the cause of the malfunction or performance failure problem of the display module 100 caused by environmental physical quantities can be quickly determined, and then relevant solutions can be taken.

[0125] In some embodiments, referring to Figure 2A 、 Figure 2B and Figure 2D, the environmental detection module 1 is disposed on at least one layer of the backplane assembly 2. The backplane assembly 2 includes a support assembly layer 20, a flip chip film 80, a driving chip 40, and a flexible circuit board 60. The support assembly layer 20 is disposed on one side of the backlight surface 10b of the display panel 10. The flip chip film 80 is connected to the display panel 10 and is configured to be bent to the side of the support assembly layer 20 away from the display panel 10. The driving chip 40 and the flexible circuit board 60 are disposed on the side of the support assembly layer 20 away from the display panel 10.

[0126] It should be noted that the environmental detection module 1 is disposed on at least one layer of the backplane assembly 2. That is to say, the environmental detection module 1 can be disposed on any one or several of the support assembly layer 20, the flip chip film 80, the driving chip 40, and the flexible circuit board 60. And with such a setting, the operator can visually observe the color change of the environmental detection module 1 disposed at different positions of the backplane assembly 2, and can quickly and accurately analyze and judge the cause of the defect or performance failure problem caused by the above environmental physical quantity at different positions of the backplane assembly 2 according to the color change or the depth of the environmental detection module 1, and then can quickly take relevant solutions. Figure 2B The environmental detection module 1 is disposed on the support assembly layer 20 in [the example] only.

[0127] In some embodiments, as Figure 2C shown, the environmental detection module 1 is disposed on the surface of the cover plate 30.

[0128] It should be noted that since the cover plate 30 is located on the light-emitting surface 10a side of the display panel 10, corresponding to the front of the display module 100, therefore, setting the environmental detection module 1 on the surface of the cover plate 30 can observe the color change of the environmental detection module 1 in real time on the front of the display module 100. According to the color change or the depth of the environmental detection module 1, the cause of the defect or performance failure problem of the display module 100 caused by the environmental physical quantity can be quickly judged, and then relevant solutions can be taken. Exemplarily, the setting position of the environmental detection module 1 on the cover plate 30 is subject to not affecting the display. For example, it can be disposed in the border area of the display module 100.

[0129] In some embodiments, referring to Figures 3A to 7B and combining with Figure 2A and Figure 2B , the environmental detection module 1 includes one or more of a pressure sensing detection module 11, a humidity detection module 12, an acid-base detection module 13, a harmful ion detection module 14, and a temperature detection module 15. Referring to Figure 2E, the environmental detection module 1 includes a detection base layer 101 and a detection reagent layer 102 disposed on one side of the detection base layer 101. The detection reagent layer 102 is configured to react under the action of environmental physical quantities and present a color change. The environmental detection module 1 is attached to one layer of the backplane assembly 2 or the cover plate 30 through the detection base layer 101.

[0130] The detection base layer 101 serves as the base layer of the environmental detection module 1, which is used to carry the detection reagent layer 102 and fix the environmental detection module 1 on the display module 100. The detection reagent layer 102 has a detection function. For example, the side of the detection base layer 101 away from the detection reagent layer 102 is attached to the position to be detected on the display module 100, and the detection reagent layer 102 faces the outside of the display module 100, facilitating the detection reagent layer 102 to present a color change according to the change of environmental physical quantities. Exemplarily, the material of the detection base layer 101 can be paper, plastic or synthetic material, and the detection reagent layer 102 has different materials correspondingly according to the different environmental physical quantities it detects.

[0131] The thickness H of the environmental detection module 1 can be 30μm - 50μm. For example, the thickness H of the environmental detection module 1 is 30μm, 40μm, 50μm.

[0132] It should be noted that when the environmental detection module 1 includes one of the pressure sensing detection module 11, humidity detection module 12, acid-base detection module 13, harmful ion detection module 14, and temperature detection module 15, the environmental detection module 1 is directly attached to one layer of the backplane assembly 2 or the cover plate 30. When the environmental detection module 1 includes multiple ones of the pressure sensing detection module 11, humidity detection module 12, acid-base detection module 13, harmful ion detection module 14, and temperature detection module 15, multiple environmental detection modules 1 can be attached to the same layer or different layers of the backplane assembly 2.

[0133] The performance and structure of each type of environmental detection module are introduced separately below.

[0134] In some embodiments, as Figures 4A to 4B shown, the environmental detection module 1 includes a humidity detection module 12, and the humidity detection module 12 is configured to change color according to the change of environmental humidity.

[0135] In some embodiments, the humidity detection module 12 includes a first humidity detection module, and the first humidity detection module is configured to change the color depth according to the change of environmental humidity, and the change of color depth is reversible.

[0136] Exemplarily, the first humidity detection module has a QR code pattern. The QR code pattern in the figure is only for illustration and does not represent the QR code actually used. The material of the first humidity detection module is a color-changing ink made of a sensing material. The first humidity detection module can sense the humidity in the environmental physical quantities. The change in the color depth of the first humidity detection module is reversible. That is to say, the color of the QR code of the first humidity detection module gradually fades with the increase in humidity until it disappears, and the color of the first humidity detection module gradually darkens with the decrease in humidity until the QR code is redisplayed; or, the color of the QR code of the first humidity detection module gradually fades with the decrease in humidity until it disappears, and the color of the first humidity detection module gradually darkens with the increase in humidity until the QR code is displayed. The reversible characteristic of the above color change enables the first humidity detection module to be reused, thereby saving costs.

[0137] The above setting that the first humidity detection module has a QR code pattern can scan and display relevant information of the display module 100 in real time, such as encoding, date, etc., which is beneficial for analysis and traceability when the performance of the display module 100 deteriorates or fails.

[0138] In some embodiments, referring to Figure 4A , the humidity detection module 12 includes a second humidity detection module 122, and the second humidity detection module 122 is configured to change the color depth according to the change in environmental humidity; the second humidity detection module 122 includes a humidity detection base layer 1221 and a humidity reaction layer 1222 arranged in a stacked manner, and the humidity reaction layer 1222 is configured to react with the dew in the environment and present a change in color depth.

[0139] It should be noted that the humidity reaction layer 1222 does not contain cobalt elements, which can avoid environmental pollution caused by high cobalt content. In the case of high humidity, dew will be generated, and the humidity reaction layer 1222 can react with the dew in the environment. Specifically, referring to Figure 4A , the dew is formed by the aggregation of multiple water vapor molecules Q. Referring to Figure 4A , Figure 4A there are multiple water vapor molecules on the humidity reaction layer 1222. The water vapor molecules Q in the environment diffuse to the humidity reaction layer 1222 and can react, presenting an irreversible color change. Referring to Figure 4B , Figure 4B is a schematic diagram of the color change of the second humidity detection module 122. It can be obtained from Figure 4B that the deeper the color change of the humidity reaction layer 1222, the greater the degree of dew in the environment. By setting the above second humidity detection module 122, it can be quickly analyzed and judged whether the location is due to high environmental humidity generating dew, which causes performance failure of the display module 100 such as short circuit and burning of the device, and timely remedial measures can be taken for the performance problems that occur.

[0140] In some embodiments, as Figure 3A and Figure 3B shown, the environmental detection module 1 includes a pressure-sensitive detection module 11, and the pressure-sensitive detection module 11 is configured to change color according to the pressure received at its location; the pressure-sensitive detection module 11 includes: a pressure-sensitive detection base layer, a donor layer 112 disposed on the pressure-sensitive detection base layer 111, and a receiving layer 113 disposed on the side of the donor layer 112 away from the pressure-sensitive detection base layer 111; the donor layer 112 and the receiving layer 113 are configured to react under pressure to form an indentation, and the donor layer 112 is configured to change from a first color D1 to a second color D2 when the indentation is formed, and the depth of the second color is related to the pressure received by the pressure-sensitive detection module 11.

[0141] It should be noted that the material of the above-mentioned donor layer 112 is pixel particles. When the pressure-sensitive detection module 1 is subjected to stress, the pixel particles react with the receiving layer 113 to form an indentation. At this time, the color of the donor layer 112 changes from the first color D1 to the second color D2. Exemplarily, as Figure 3B shown, the first color D1 is white, the second color D2 is red, and the greater the depth of the second color, the greater the degree of extrusion. By setting the above-mentioned pressure-sensitive detection module 11, it is possible to quickly analyze and judge whether the location is subjected to high-intensity extrusion or pulling, which may cause performance failure of the display module 100 caused by rupture, damage, etc. of the device, and take corresponding remedial measures in a timely manner for the existing performance problems.

[0142] In some embodiments, as Figure 5A and Figure 5B shown, the environmental detection module 1 includes an acid-base detection module 13, and the acid-base detection module 13 is configured to change color according to the environmental acidity; the acid-base detection module 13 includes an acid-base detection base layer 131 and an acid-base reagent layer 132 disposed on the acid-base detection base layer 131; the acid-base reagent layer 132 is configured to change from an initial color O to a first reaction color O1 in an acidic environment and change from the initial color O to a second reaction color O2 in a basic environment.

[0143] It should be noted that the stronger the acidity of the above-mentioned acid-base reagent layer 132 in the environment, the deeper the degree of the first reaction color O1, and the stronger the alkalinity of the acid-base reagent layer 132 in the environment, the deeper the degree of the second reaction color O2. Exemplarily, the initial color O is yellow or yellow-green, the first reaction color O1 is a warm color, such as red, red-orange, orange, or yellow-orange; the second reaction color O2 is a cold color, such as green, blue-green, blue, or blue-violet. By setting the above-mentioned acid-base detection module 13, it is possible to quickly analyze and judge whether the location has an excessive acid-base degree, which may cause performance failure of the display module 100 caused by corrosion and damage of the device, and take corresponding remedial measures in a timely manner for the existing performance problems.

[0144] In some embodiments, such as Figure 6A and Figure 6B shown, the environmental detection module 1 further includes a harmful ion detection module 14, and the harmful ion detection module 14 is configured to change the color depth according to the concentration of the harmful ions; the harmful ion detection module 14 includes: an ion detection base layer 141 and an ion reaction layer 142 provided on the ion detection base layer 141, and the ion reaction layer 142 is configured to react with the harmful ions and present a change in color depth.

[0145] It should be noted that the ion reaction layer 142 is provided with ions that can react with the harmful ions, and after the ion reaction layer 142 reacts with the harmful ions, the color of the ion reaction layer 142 will change in depth according to the concentration of the harmful ions. The higher the concentration of the harmful ions, the darker the color of the ion reaction layer 142. For example, harmful ions such as sulfur ions may be generated during the use of the display module 100, affecting the customer experience and physical health. That is to say, by setting the above-mentioned harmful ion detection module 14, it is possible to quickly analyze and judge whether there are high-concentration harmful ions at the location, and take corresponding solutions in time.

[0146] In some embodiments, such as Figure 7A and Figure 7B shown, the environmental detection module 1 further includes a temperature detection module 15, and the temperature detection module 15 is configured to change the color depth according to the temperature change in the surrounding environment; the temperature detection module 15 includes: a temperature detection base layer 151 and a temperature reaction layer 152 provided on the temperature detection base layer 151; the temperature reaction layer 152 includes a reaction substance, and the reaction substance is configured to volatilize as the temperature rises.

[0147] It should be noted that the reaction substance in the temperature reaction layer 152 has a color, and the reaction substance volatilizes as the working environment temperature of the display module 100 rises until it disappears. During the volatilization process, since the reaction substance becomes less, the color presented by the reaction substance becomes lighter, and the temperature detection module 15 gradually presents the color of the temperature detection base layer or the color of the remaining substance in the temperature reaction layer 152 except the reaction substance, thus presenting a change in color depth. By setting the above-mentioned temperature detection module 15 and observing its color change, it is possible to quickly judge whether the display module 100 has an overloaded temperature during operation, resulting in the internal components being burned out by high temperature and then causing the performance of the display module 100 to fail, and take corresponding solutions in time.

[0148] In some embodiments, such as Figure 8 Combined with Figure 2AAs shown, the display module 100 further includes a particle detection film layer 16; the particle detection film layer 16 is disposed on at least one layer of the backplane assembly 2 and is configured to adsorb suspended particles in the environment.

[0149] Exemplarily, the particle detection film layer 16 can be attached to any one or several of the support component layer 20, the chip-on-film 80, the driving chip 40, and the flexible printed circuit board 60, and the number of the particle detection film layers 16 is not limited.

[0150] In some embodiments, referring to Figure 8 , the particle detection film layer 16 includes a particle detection base layer 161 and a particle adsorption layer 162 disposed on the particle detection base layer 161, and the particle adsorption layer 162 is configured to adsorb suspended particles in the environment.

[0151] It should be noted that the particle adsorption layer 162 has high adsorption performance and high purity of its internal components, and can adsorb suspended particles generated in the working environment. When the performance of the display module 100 fails, maintenance personnel can perform component analysis on the particle adsorption layer 162, analyze the concentration of target particles in the environment, and deduce whether a chemical reaction or other physical reaction occurs in the device or circuit due to a short circuit, and then quickly determine the reason for the performance failure in the display module 100 according to the particle components.

[0152] The following introduces the position setting of the environmental detection module in the display module.

[0153] In some embodiments, as Figures 2A to 2C shown, the cover plate 30 includes a central area AA and a peripheral area BB, and the peripheral area BB is located around the central area AA. The environmental detection module 1 is disposed at the position P to be detected of the display module 100. When the display module 100 further includes the particle detection film layer 16, the particle detection film layer 16 is also disposed at the position P to be detected of the display module 100; the position P to be detected includes at least one of the side surface of the support component layer (SCF, Super Clear Film) 20 away from the display panel 10 (hereinafter referred to as the SCF area), the driving chip (IC, Integrated Circuit) 40 (hereinafter referred to as the IC area), the side surface of the flexible printed circuit board (FPC, Flexible Printed Circuit) 60 away from the display panel 10 (hereinafter referred to as the FPC area), the peripheral area BB of the cover plate 30 and the side surface close to the display panel 10 (hereinafter referred to as the edge encapsulation area), and the side surface of the chip-on-film (COF, Chip On Film) 80 away from the support component layer 20 away from the display panel 10 (hereinafter referred to as the COF area).

[0154] The above-mentioned position to be detected is an area in the display module that is more vulnerable to environmental factors. By setting the environmental detection module in the high-risk area of the display module affected by the environment, the environmental physical quantities at these positions can be detected more accurately by observing the color change of the environmental detection module, so as to trace the influencing factors that may cause product performance failure, quickly distinguish the reasons for product performance failure, and take corresponding solutions in a timely manner.

[0155] Exemplarily, as Figure 2A and Figure 2B shown, when the environmental detection module 1 is set at the position P to be detected in the display module 100, and the environmental detection module 1 includes one of the pressure sensing detection module 11, humidity detection module 12, acid-base detection module 13, harmful ion detection module 14, and temperature detection module 15, at the same time, the particle detection film layer 16 is also set at the position P to be detected in the display module 100. At this time, the position P to be detected can be any one of the surface on the side of the support component layer 20 away from the display panel 10, on the driving chip 40, on the surface of the flexible circuit board 60 away from the display panel 10, in the peripheral area BB of the cover plate 30 and on the surface close to the display panel 10, and on the surface of the flip chip film 80 away from the side of the support component layer 20 away from the display panel 10.

[0156] Exemplarily, as Figure 2A and Figure 2C shown, when the environmental detection module 1 is set at the position P to be detected in the display module 100, that is to say, when multiple of the pressure sensing detection module 11, humidity detection module 12, acid-base detection module 13, harmful ion detection module 14, temperature detection module 15, and particle detection film layer 16 are set at the position P to be detected in the display module 100, at the same time, the particle detection film layer 16 is also set at the position P to be detected in the display module 100. At this time, the position P to be detected can be any one of the surface on the side of the support component layer 20 away from the display panel 10, on the driving chip 40, on the surface of the flexible circuit board 60 away from the display panel 10, in the peripheral area BB of the cover plate 30 and on the surface close to the display panel 10, and on the surface of the flip chip film 80 away from the side of the support component layer 20 away from the display panel 10; or, as Figure 2C shown, the position P to be detected can be multiple of the surface on the side of the support component layer 20 away from the display panel 10, on the driving chip 40, on the surface of the flexible circuit board 60 away from the display panel 10, in the peripheral area BB of the cover plate 30 and on the surface close to the display panel 10, and on the surface of the flip chip film 80 away from the side of the support component layer 20 away from the display panel 10.

[0157] In some embodiments, such as Figures 9A to 9C Combined with Figure 2CAs shown, at least two environmental detection modules 1 are provided at the position P to be detected of the display module 100. The types of the at least two environmental detection modules 1 are different, and the at least two environmental detection modules 1 are stacked; alternatively, the at least two environmental detection modules 1 are arranged in a tiled manner with a dislocation.

[0158] Exemplarily, referring to Figure 9A , Figure 9A there are two environmental detection modules 1 at the position P to be detected of the display module 100 in [reference], and the types of the two environmental detection modules 1 are different. They can be any two of the pressure sensing detection module 11, humidity detection module 12, acid-base detection module 13, harmful ion detection module 14, temperature detection module 15 and particle detection film layer 16. The two environmental detection modules 1 are stacked together to simultaneously detect the changes of two different environmental physical quantities at the position P to be detected. Among them, Figure 9A taking the two environmental detection modules 1 as the pressure sensing detection module 11 and the acid-base detection module 13 as an example in [reference], the stacking manner of the pressure sensing detection module 11 and the acid-base detection module 13 is a direct superposition in the vertical direction. The pressure sensing detection module 11 is located above the acid-base detection module 13, and the acid-base detection module 13 is directly attached to the position P to be detected, and simultaneously detects the changes of the pressure and the acidity at the position P to be detected. Figure 9B taking the two environmental detection modules 1 as the pressure sensing detection module 11 and the second humidity detection module 122 as an example in [reference], the stacking manner of the pressure sensing detection module 11 and the second humidity detection module 122 is a direct superposition in the vertical direction. The pressure sensing detection module 11 is located above the second humidity detection module 122, and the second humidity detection module 122 is directly attached to the position P to be detected, and simultaneously detects the changes of the pressure and the humidity at the position P to be detected.

[0159] The different types of environmental detection modules 1 at the unified position P to be detected can adopt a stacked design scheme. By using the superposition scheme, the detection stack can be separated during later analysis and tracing, and the color change of each detection reagent layer 102 can be observed to realize the multi-environmental physical quantity detection of the environmental detection module 1, and multiple environmental influencing factors can be traced simultaneously.

[0160] Exemplarily, referring to Figures 9C to 9FThere are two environmental detection modules 1 at the position P to be detected on the display module 100, and the two environmental detection modules 1 are of different types, which can be any two of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, the harmful ion detection module 14, the temperature detection module 15 and the particle detection film layer 16. The two environmental detection modules 1 are arranged in a staggered and tiled manner to simultaneously detect the changes of two different environmental physical quantities at the position P to be detected. The staggered and tiled setting means that the orthographic projections of the two environmental detection modules 1 on their respective planes do not overlap, and the detection reagent layer 102 of each environmental detection module 1 can be exposed to the surrounding environment, having a large contact area with condensation, harmful ions, etc. in the external environment, facilitating the perception and detection of environmental physical quantities. And during later analysis and traceability, there is no need to process the environmental detection module 1, and the color changes of various types of environmental detection modules 1 can be directly observed, realizing convenient and accurate multi-environmental physical quantity detection using the environmental detection module and simultaneously tracing multiple environmental influencing factors.

[0161] Among them, referring to Figure 9C and Figure 9D , Figure 9C and Figure 9D Taking the two environmental detection modules 1 as the pressure sensing detection module 11 and the acid-base detection module 13 as an example, the pressure sensing detection base layer 111 and the acid-base detection base layer 131 are located on the same layer, and the pressure sensing detection base layer 111 and the acid-base detection base layer 131 can be made of the same material and integrated. It is equivalent to the pressure sensing detection base layer 111 and the acid-base detection base layer 131 being simultaneously attached to the position P to be detected. The donor layer 112, the receiver layer 113 and the acid-base reagent layer 132 are arranged in a staggered manner on the same layer, and the orthographic projection shapes of the donor layer 112 and the receiver layer 113 at the position P are combined with the orthographic projection shape of the acid-base reagent layer 132 at the position P to form a square, simultaneously detecting the changes of the pressure and the acidity / alkalinity at the position P to be detected.

[0162] Referring to Figure 9E and Figure 9F , Figure 9E and Figure 9F Taking the two environmental detection modules 1 as the pressure sensing detection module 11 and the acid-base detection module 13 as an example, the pressure sensing detection base layer 111 and the acid-base detection base layer 131 are located on the same layer, and the pressure sensing detection base layer 111 and the acid-base detection base layer 131 can be made of the same material and integrated. It is equivalent to the pressure sensing detection base layer 111 and the acid-base detection base layer 131 being simultaneously attached to the position P to be detected. The donor layer 112, the receiver layer 113 and the acid-base reagent layer 132 are arranged in a staggered manner on the same layer, and the orthographic projection shapes of the donor layer 112 and the receiver layer 113 at the position P are combined with the orthographic projection shape of the acid-base reagent layer 132 at the position P to form a circle, simultaneously detecting the changes of the pressure and the acidity / alkalinity at the position P to be detected.

[0163] It should be noted that the orthographic projection of the above environmental detection module 1 at the position P to be detected can be square, circular, polygonal, etc., which is not limited here.

[0164] In this article, "shaped like a square, a circle or a polygon" means that the shape is generally square, circular or polygonal, but is not limited to a standard square, circle or polygon. That is, "square, circular or polygonal" here includes not only the shapes of basic squares, circles or polygons, but also shapes similar to squares, circles or polygons. For example, the long side and the short side of a rectangle are curved at each intersecting position (i.e., the corner), that is, the corner is smooth, and the shape is a rounded rectangle.

[0165] In some embodiments, referring to Figures 11A to 11F , at least one environmental detection module 1 is provided at the position P to be detected of the display module 100; when there is one environmental detection module 1 provided at the position P to be detected of the display module 100, the ratio of the total area of the environmental detection module 1 to the area of the region of the position P to be detected is greater than 60%.

[0166] Exemplarily, referring to Figure 11F , one environmental detection module 1 is provided at the position P to be detected of the display module 100. In order to accurately detect the change of the environmental physical quantity at the position P to be detected, the ratio of the total area of the environmental detection module 1 to the area of the region of the position P to be detected is set to be greater than 60%. For example, the shape of the environmental detection module 1 is the same as the shape of the region of the position P to be detected, that is, a contour shape, and the environmental detection module 1 is attached to the middle area of the position P to be detected.

[0167] In other embodiments, referring to Figures 11A to 11E , when a plurality of environmental detection modules 1 are provided at the position P to be detected of the display module 100, the plurality of environmental detection modules 1 are arranged in an array and spaced apart; or, the plurality of environmental detection modules 1 are in contact with each other, and the ratio of the total area of the plurality of environmental detection modules 1 to the area of the region of the position P to be detected is greater than 60%.

[0168] Exemplarily, referring to Figures 11A to 11D , a plurality of environmental detection modules 1 are provided at the position P to be detected of the display module 100, and the plurality of environmental detection modules 1 are arranged in an array and spaced apart. Among them, Figures 11A to 11C the distribution mode of the plurality of environmental detection modules 1 in the position P to be detected is a dot matrix distribution, Figure 11D the distribution mode of the plurality of environmental detection modules 1 in the position P to be detected is a longitudinal strip interval distribution, Figure 11EThe distribution pattern of multiple environmental detection modules 1 at the position P to be detected is a horizontal strip-shaped spaced distribution. By performing various arrangements and shape settings on the environmental detection modules, it is possible to make the environmental detection modules as evenly distributed as possible in the area where the position to be detected is located, and to increase the laying area of the environmental detection modules as much as possible without affecting the normal functions of the display module, which can improve the detection accuracy of the environmental physical quantities in this area.

[0169] Exemplarily, referring to Figure 11E , at the position P to be detected of the display module 100, a plurality of environmental detection modules 1 are provided. The plurality of environmental detection modules 1 are in contact with each other, and the shape of each environmental detection module 1 can be a regular shape such as a circle, a square or a strip shape.

[0170] In some embodiments, referring to Figures 11A to 11E , the position P to be detected is the SCF area. At least one environmental detection module 1 is disposed on the side of the support component layer 20 away from the display panel 10. At least one environmental detection module 1 includes at least one of a pressure sensing detection module 11, a humidity detection module 12, an acid-base detection module 13 and a harmful particle detection module 14.

[0171] It should be noted that during the assembly process of the display module 100, the SCF area is prone to being damaged by extrusion. And during the use process of the display module 100, the SCF area is prone to water vapor penetration, acid-base gas-liquid penetration, and the materials in the SCF area will generate high-concentration harmful ions due to the increase in temperature, resulting in damage. That is to say, the SCF area is easily affected by environmental physical quantities such as pressure, humidity, acidity and alkalinity, and harmful ions. Therefore, by setting the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13 and the harmful particle detection module 14 in the SCF area, the operator can directly observe the color changes of various types of environmental detection modules 1, and at the same time quickly trace back to the influence of the environmental physical quantities received by the SCF area according to the color changes, and then take corresponding solutions.

[0172] Exemplarily, referring to Figure 11E , the number of the environmental detection modules 1 is one, and this environmental detection module 1 can be one of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13 and the harmful particle detection module 14.

[0173] Exemplarily, the number of the environmental detection modules 1 is two. The environmental detection module 1 can be any two of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, and the harmful particle detection module 14, or both of the two environmental detection modules 1 are any one of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, and the harmful particle detection module 14. At this time, the attachment manner of the two environmental detection modules 1 on the support component layer 20 can be stacked or staggeredly tiled. Figures 11A to 11D The number of the environmental detection modules 1 is multiple. The multiple environmental detection modules 1 can be a combination of any several of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, and the harmful particle detection module 14.

[0174] In some other embodiments, referring to Figure 2B , the particle detection module layer 16 is disposed on the side of the support component layer 20 away from the display panel 10.

[0175] Exemplarily, the particle detection module layer 16 can be set to one or more and is uniformly distributed on the side of the support component layer 20 away from the display panel 10.

[0176] In still some other embodiments, referring to Figures 11A to 11E , the position P to be detected is the SCF area. At least one environmental detection module 1 is disposed on the side of the support component layer 20 away from the display panel 10. At least one environmental detection module 1 includes at least one of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, and the harmful particle detection module 14, and the particle detection module layer 16 is disposed on the side of the support component layer 20 away from the display panel 10.

[0177] Exemplarily, referring to Figure 11E , the number of the environmental detection modules 1 is one. The environmental detection module 1 can be one of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, and the harmful particle detection module 14. At the same time, the particle detection module layer 16 is disposed on the side of the support component layer 20 away from the display panel 10. At this time, the attachment manner of the environmental detection module 1 and the particle detection film layer 16 on the support component layer 20 can be stacked or staggeredly tiled.

[0178] Exemplarily, the number of the environmental detection modules 1 is multiple. The environmental detection module 1 can be a combination of any several of the pressure detection module 11, the humidity detection module 12, the acid-base detection module 13, and the harmful particle detection module 14, or all of the multiple environmental detection modules 1 are any one of the pressure detection module 11, the humidity detection module 12, the acid-base detection module 13, and the harmful particle detection module 14. At the same time, the particle detection film layer 16 is disposed on the side of the support component layer 20 away from the display panel 10. At this time, the attachment manner of the environmental detection module 1 and the particle detection film layer 16 on the support component layer 20 can be stacked setting, or staggered flat setting, or attached to the support component layer 20 in an array and spaced arrangement.

[0179] In some embodiments, as Figures 10A to 10C shown, the position P to be detected is the IC area, and at least one environmental detection module 1 is disposed on the driving chip 40. For example, the environmental detection module 1 covers the driving chip 40, and at least one environmental detection module 1 includes at least one of the humidity detection module 12, the pH detection module 13, the pressure detection module 11, and the temperature detection module 15.

[0180] It should be noted that during the assembly process of the display module 100, the IC area is prone to being damaged by extrusion. And during the operation process of the display module 100, the IC area is prone to water vapor penetration, acid-base gas-liquid penetration, and damage caused by the high-temperature working environment. That is to say, the IC area is easily affected by environmental physical quantities such as pressure, humidity, pH, and temperature. Therefore, by disposing the pressure detection module 11, the humidity detection module 12, the acid-base detection module 13, and the temperature detection module 15 in the IC area, the operator can directly observe the color changes of various types of environmental detection modules 1, and at the same time quickly trace back to the influence of the environmental physical quantities received by the IC area according to the color changes, and then take corresponding solutions.

[0181] Exemplarily, referring to Figure 10A and Figure 10B , the number of the environmental detection modules 1 is one, and the environmental detection module 1 can be one of the pressure detection module 11, the humidity detection module 12, the acid-base detection module 13, and the temperature detection module 15.

[0182] Exemplarily, the number of the environmental detection modules 1 is two. The environmental detection module 1 can be any two of the pressure detection module 11, the humidity detection module 12, the acid-base detection module 13, and the temperature detection module 15, or both of the two environmental detection modules 1 are any one of the pressure detection module 11, the humidity detection module 12, the acid-base detection module 13, and the temperature detection module 15. At this time, the attachment manner of the two environmental detection modules 1 on the driving chip 40 can be stacked setting or staggered flat setting. Referring to Figure 10C, The number of environmental detection modules 1 in the figure is six. Every two environmental detection modules 1 can be grouped together, and they are environmental detection modules 1 of the same type.

[0183] The environmental detection modules have various arrangement methods and shapes. For example, as Figure 10A shown, the display panel 10 is connected to the flexible circuit board 60 through a flip chip film 80, and the driving chip 40 is arranged on the side of the flip chip film 80 close to the display panel 10. The environmental detection module 1 is in a long strip frame shape surrounding the driving chip 40. As Figure 10B shown, the driving chip 40 is directly packaged on the display panel 10 by COP (English: Chip On Pi) and is bent to the non-display side together with the display panel 10. The driving chip 40 is closer to the non-display side relative to the display panel 10. The environmental detection module 1 is in a long strip frame shape surrounding the driving chip 40. As Figure 10C shown, one environmental detection module is arranged on each driving chip 40, and the environmental detection module is in a block shape. By performing various arrangement settings and shape settings on the environmental detection modules, it is possible to make the environmental detection modules as evenly distributed as possible in the area where the position to be detected is located, and to increase the laying area of the environmental detection modules as much as possible without affecting the normal functions of the display module, which can improve the detection accuracy of the environmental physical quantities in this area.

[0184] In some embodiments, as Figures 12A to 12E shown, the position P to be detected is the FPC area. At least one environmental detection module 1 is arranged on the side of the flexible circuit board 60 away from the display panel 10; at least one environmental detection module 1 includes at least one of a pressure sensing detection module 11, a humidity detection module 12, a temperature detection module 15, and an acid-base detection module 13.

[0185] It should be noted that during the assembly process of the display module 100, the FPC area is prone to being squeezed and damaged. And during the working process of the display module 100, the FPC area is prone to water vapor penetration, acid-base gas and liquid penetration, and damage caused by a high-temperature working environment. That is to say, the FPC area is easily affected by environmental physical quantities such as pressure, humidity, acidity and alkalinity, and temperature. Therefore, by arranging the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, and the temperature detection module 15 in the FPC area, the operator can directly observe the color changes of various types of environmental detection modules 1, and at the same time quickly trace back to the influence of the environmental physical quantities on the FPC area according to the color changes, and then take corresponding solutions.

[0186] Exemplarily, referring to Figure 12D and Figure 12E , the number of environmental detection modules 1 is one, and this environmental detection module 1 can be one of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, and the temperature detection module 15.

[0187] Exemplarily, the number of the environmental detection modules 1 is two. The environmental detection module 1 can be any two of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, and the temperature detection module 15, or both of the two environmental detection modules 1 are any one of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, and the temperature detection module 15. At this time, the attachment manner of the two environmental detection modules 1 on the flexible circuit board 60 can be stacked or arranged in a staggered and tiled manner. Figure 12B , Figure 12C In, the number of the environmental detection modules 1 is six, and every two environmental detection modules 1 are set as the same type of environmental detection module 1 in a group.

[0188] The environmental detection module 1 has various arrangement manners and shapes. For example, as Figure 12B and Figure 12C show, six environmental detection modules 1 are arranged on the surface of the flexible circuit board 60 far away from the display panel 10 in an array and at intervals. The orthographic projections of the six environmental detection modules 1 on the flexible circuit board 60 are circular and square respectively. As Figure 12D show, one environmental detection module 1 is arranged on the surface of the flexible circuit board 60 far away from the display panel 10, and the environmental detection module 1 is strip-shaped. As Figure 12E show, one environmental detection module is arranged on the surface of the flexible circuit board 60 far away from the display panel 10, and the outer contour of the environmental detection module 1 is the same as the outer contour of the flexible circuit board 60. By performing various arrangement settings and shape settings on the environmental detection module, it is possible to make the environmental detection module distribute as evenly as possible in the area where the position to be detected is located, and to increase the laying area of the environmental detection module as much as possible without affecting the normal function of the display module, thereby improving the detection accuracy of the environmental physical quantity in this area.

[0189] In some embodiments, as Figures 13A to 13D and Figure 2C show, the position P to be detected is an edge encapsulation area, and at least one environmental detection module 1 is arranged in the peripheral area BB of the cover plate 30 and close to the side of the display panel 10; at least one environmental detection module 1 includes at least one of the pressure sensing detection module 11, the acid-base detection module 13, and the humidity detection module 12.

[0190] It should be noted that during the assembly process of the display module 100, the edge encapsulation area is prone to being damaged by extrusion. Moreover, during the operation of the display module 100, the edge encapsulation area is prone to water vapor penetration, acid-base gas-liquid penetration, resulting in circuit damage. That is to say, the edge encapsulation area is susceptible to the influence of environmental physical quantities such as pressure, humidity, and acidity. Therefore, a pressure sensing detection module 11, a humidity detection module 12, and an acid-base detection module 13 are provided in the edge encapsulation area. The operator can directly observe the color changes of various types of environmental detection modules 1, and at the same time, quickly trace back to the influence of environmental physical quantities on the edge encapsulation area based on the color changes, and then take corresponding solutions.

[0191] Exemplarily, referring to Figure 13D , the number of the environmental detection modules 1 is one, and this environmental detection module 1 can be one of the pressure sensing detection module 11, the humidity detection module 12, and the acid-base detection module 13.

[0192] Exemplarily, the number of the environmental detection modules 1 is two, and this environmental detection module 1 can be any two of the pressure sensing detection module 11, the humidity detection module 12, and the acid-base detection module 13, or both of the two environmental detection modules 1 are any one of the pressure sensing detection module 11, the humidity detection module 12, and the acid-base detection module 13. At this time, the attachment method of the two environmental detection modules 1 on the cover plate 30 can be stacked or staggeredly tiled. Figures 13A to 13C The number of the environmental detection modules 1 in [[ ]] is multiple, and the multiple environmental detection modules 1 can be a combination of any several of the pressure sensing detection module 11, the humidity detection module 12, and the acid-base detection module 13.

[0193] The environmental detection module 1 has various arrangement methods and shapes. For example, as Figures 13A to 13C shown, a plurality of environmental detection modules 1 are provided on the edge encapsulation area, arranged in an array and at intervals. The orthographic projections of the plurality of environmental detection modules 1 on the edge encapsulation area are respectively circular and strip-shaped. As Figure 13C shown, a plurality of environmental detection modules 1 are evenly provided on the edge encapsulation area. Among them, the orthographic projections of a part of the environmental detection modules 1 on the edge encapsulation area are strip-shaped, and another part of the environmental detection modules 1 are located at the corner positions of the edge encapsulation area, conforming to the corner positions, in an L shape, and the two are evenly spaced on the edge encapsulation area. As Figure 13D shown, one environmental detection module is provided on the edge encapsulation area, and the outer contour of the environmental detection module 1 is the same as the outer contour of the edge encapsulation area. By performing various arrangement settings and shape settings on the environmental detection module, it is possible to make the environmental detection module as evenly distributed as possible in the area where the position to be detected is located, and to increase the laying area of the environmental detection module as much as possible without affecting the normal function of the display module, which can improve the detection accuracy of the environmental physical quantities in this area.

[0194] In some embodiments, as Figures 14A to 14E shown, the position P to be detected is the COF area, and at least one environmental detection module 1 is disposed on the surface of the chip-on-film 80 away from the support component layer 20; at least one environmental detection module 1 includes at least one of an acid-base detection module 13 and a humidity detection module 12.

[0195] It should be noted that during the operation of the display module 100, the COF area is prone to water vapor penetration and acid-base gas-liquid penetration, resulting in circuit damage. That is to say, the COF area is easily affected by environmental physical quantities such as humidity and acidity. Therefore, by setting the humidity detection module 12 and the acid-base detection module 13 in the COF area, the operator can directly observe the color changes of various types of environmental detection modules 1, and at the same time quickly trace back to the influence of environmental physical quantities on the COF area according to the color changes, and then take corresponding solutions.

[0196] Exemplarily, referring to Figure 14B , the number of the environmental detection modules 1 is one, and this environmental detection module 1 can be one of the humidity detection module 12 and the acid-base detection module 13.

[0197] Exemplarily, the number of the environmental detection modules 1 is two, and these environmental detection modules 1 can be the humidity detection module 12 and the acid-base detection module 13, or both of the two environmental detection modules 1 are any one of the humidity detection module 12 and the acid-base detection module 13. At this time, the attachment manner of the two environmental detection modules 1 on the chip-on-film 80 can be stacked or staggeredly tiled. Figure 14D and Figure 14E in, the number of the environmental detection modules 1 is six, and every two environmental detection modules 1 are set as the same type of environmental detection module 1 in a group.

[0198] In some examples, the display module 100 includes a plurality of chip-on-films 80, and the plurality of chip-on-films 80 are all connected to one end of the display panel 10 and bent to the non-display surface side of the display panel 10. At least one environmental detection module 1 is disposed on the surface of each chip-on-film away from the support component layer 20. A driving chip 40 is also disposed on the surface of the chip-on-film away from the support component layer 20. The environmental detection module 1 is farther from the frame of the display module than the driving chip 40.

[0199] The environmental detection modules have various arrangement manners and shapes. For example, as Figure 14C shown, two environmental detection modules are disposed on the surface of each chip-on-film away from the support component layer 20. The two environmental detection modules are in a block shape and are arranged at intervals. As Figure 14D shown, one environmental detection module is disposed on the surface of each chip-on-film away from the support component layer 20. The environmental detection module is in a strip shape.Figure 14E As shown, an environmental detection module is provided on the surface of each flip-chip thin film away from the support component layer 20. The environmental detection module is strip-shaped and semi-surrounds the driving chip 40. By arranging and shaping the environmental detection module in various ways, it is possible to make the environmental detection module as evenly distributed as possible in the area where the position to be detected is located, and to increase the laying area of the environmental detection module as much as possible without affecting the normal function of the display module, which can improve the detection accuracy of the environmental physical quantity in this area.

[0200] In some embodiments, as Figure 15A and Figure 15B shown, the display module 100 includes a punching area K, and at least one through hole K1 is provided in the punching area K; the through hole K1 penetrates at least the support component layer 20 and the display panel 10; at least one environmental detection module 1 is also provided on the surface of the support component layer 20 away from the display panel 10 and is located in the punching area K, and the support component layer 20 is located around the through hole K1.

[0201] It should be noted that the above through hole K1 is a camera hole, and the punching area K is the area where the camera hole is located.

[0202] Exemplarily, the environmental detection module 1 located in the punching area K is arranged on the periphery of the through hole K1, and the shape of the environmental detection module 1 can be a circular ring type, a square box type, a long strip box type or a contour type, respectively referring to Figure 15A 、 Figure 15C 、 Figure 15D and Figure 15E .

[0203] In some embodiments, referring to Figures 15A to 15E , at least one environmental detection module 1 includes at least one of a humidity detection module 12 and a pressure sensing detection module 11.

[0204] It should be noted that during the assembly process of the display module 100, the punching area K is prone to being squeezed and damaged, and during the working process of the display module 100, the punching area K is prone to water vapor penetration resulting in circuit damage. That is to say, the punching area K is easily affected by environmental physical quantities such as humidity and pressure. Therefore, by setting the humidity detection module 12 and the pressure sensing detection module 11 in the punching area K, the operator can directly observe the color change of each type of environmental detection module 1, and at the same time quickly trace back to the influence of the environmental physical quantity on the punching area K according to the color change, and then take corresponding solutions.

[0205] Exemplarily, referring to Figures 15A to 15D , the number of the environmental detection modules 1 is one, and this environmental detection module 1 can be one of the pressure sensing detection module 11 and the humidity detection module 12.

[0206] Exemplarily, referring toFigure 15E There are two environmental detection modules 1, which are arranged adjacent to each other. The environmental detection module 1 can be a pressure sensing detection module 11, a humidity detection module 12, or both environmental detection modules 1 are any one of the humidity detection module 12 and the pressure sensing detection module 11. At this time, the attachment manner of the two environmental detection modules 1 in the punching area K can be stacked or offset and tiled.

[0207] In some embodiments, referring to Figures 16A to 16C , the support component layer 20 includes a support layer 21 and a first water absorption layer 22. A plurality of grooves 211 are formed on the side of the support layer 21 away from the display panel 10, and adjacent two of the plurality of grooves 211 are connected; the first water absorption layer 22 is disposed in the plurality of grooves 211.

[0208] It should be noted that, as Figures 16A to 16C shown, adjacent multiple grooves 211 are connected. Here, the connection means that adjacent two grooves 211 are in communication, which is equivalent to the first water absorption layer 22 being filled in the edge contour where the multiple grooves 211 are connected, that is, the first water absorption layer 22 is a whole layer without interruption positions, which can simplify the manufacturing process to a certain extent. At the same time, setting the grooves 211 not only accommodates the first water absorption layer 22, but also has a certain limiting effect on the first water absorption layer 22 to prevent the water vapor in the first water absorption layer 22 from affecting other film layers.

[0209] In some embodiments, the material of the first water absorption layer 22 is a super absorbent polymer (SAP).

[0210] It should be noted that when the environmental humidity of the display module 100 is relatively high, setting the super absorbent polymer can absorb the moisture in the environment, ensure the dryness of the display module 100, and prevent the short circuit or damage of the internal devices of the display module 100 due to excessive environmental humidity.

[0211] Exemplarily, as Figure 17A shown, the surface of the first water absorption layer 22 is flush with the surface of the part of the support layer 21 where no grooves 211 are provided; the ratio of the thickness h1 of the first water absorption layer 22 to the thickness h2 of the support layer 21 is greater than 0 and less than 0.5.

[0212] In some embodiments, as Figure 17B shown, the surface of the first water absorption layer 22 is flush with the surface of the part of the support layer 21 where no grooves 211 are provided; the ratio of the thickness h1 of the first water absorption layer 22 to the thickness h2 of the support layer 21 is greater than 0 and less than 0.5.

[0213] It should be explained that setting the ratio of the thickness h1 of the first water absorption layer 22 to the thickness h2 of the support layer 21 within a certain range is mainly to ensure the support performance of the support layer 21 and improve the stability of the structure.

[0214] In some embodiments, such as Figures 16A to 16C , the orthographic projection of each of the plurality of grooves 211 on the display panel 10 is a cross shape, a double-square shape or a honeycomb shape.

[0215] Exemplarily, referring to Figure 16A , Figure 16A the orthographic projection of each groove 211 in Figure 16A on the display panel 10 is a cross shape. For the convenience of illustration, only one cross-shaped groove 211 is shown in

[0216] . And for the beauty of the groove, the orthographic projection of the edge positions of the plurality of grooves 211 on the display panel 10 is set as a T shape. This is only one kind of illustration. Specifically, the structure of the edge positions of the plurality of grooves 211 is not limited. Figure 16B Exemplarily, referring to Figure 16B , the orthographic projection of each groove 211 in

[0217] on the display panel 10 is a double-square shape, and two adjacent grooves 211 are connected to each other. It is equivalent to that the first water-absorbing layer 22 is filled in the annular area of each groove 211. The double-square structure of the groove 211 set here is only one example, and it can also be other annular regular structures. Figure 16C Exemplarily, referring to Figure 16C , the orthographic projection of each groove 211 on the display panel 10 is a honeycomb shape, that is, the orthographic projection of each groove 211 on the display panel 10 is a polygon.

[0218] It should be noted that the above settings of the grooves 211 with different structures are all for ensuring the support performance of the support layer 21 and improving the stability of the overall structure of the display module 100.

[0219] In some embodiments, continuing to refer to Figure 17B , the support component layer 20 further includes a second water-absorbing layer 23. The second water-absorbing layer 23 is disposed on the side of the support layer 21 and the first water-absorbing layer 22 away from the display panel 10, and the second water-absorbing layer 23 is a high-transparency foam.

[0220] It should be noted that since the surface of the first water-absorbing layer 22 is flush with the surface of the part of the support layer 21 where the groove 211 is not provided, considering the actual setting process, due to the different materials of the first water-absorbing layer 22 and the support layer 21, there may be a slight step difference on their surfaces. Setting the second water-absorbing layer 23 can avoid the step difference problem. On the other hand, setting the second water-absorbing layer 23 as a highly permeable bubble sponge, when there is a large amount of water vapor in the environment, it can pass through the second water-absorbing layer 23 and be further absorbed by the first water-absorbing layer 22 to ensure the dryness of the side of the support layer 21 close to the display panel 10.

[0221] In some embodiments, with continued reference to Figure 17B , the support component layer 20 further includes: a third water-absorbing layer 24 and a first adhesive layer 24. The third water-absorbing layer 24 is disposed on the side of the support layer 21 close to the display panel 10, and the third water-absorbing layer 24 is a buffer foam; both the second water-absorbing layer 23 and the third water-absorbing layer 24 have a plurality of loose pores; the first adhesive layer 24 is disposed on the side of the third water-absorbing layer 24 close to the display panel 10.

[0222] Exemplarily, both the second water-absorbing layer 23 and the third water-absorbing layer 24 have a plurality of loose pores. Among them, the loose pores can pass through the water vapor in the environment. The second water-absorbing layer 23 itself has a water-absorbing function and can directly absorb the moisture on the surface of the second water-absorbing layer 23. In addition, the loose pores provided in the second water-absorbing layer 23 can enable some water vapor in the environment to pass through and enter the first water-absorbing layer 22, and further absorb water through the superabsorbent resin, so as to make the side of the support layer 21 close to the display panel 10 dry. The loose pores in the third water-absorbing layer 24 can absorb the residual water vapor diffused into it again to ensure the dryness of the display panel 10, so as to ensure normal display and improve the reliability of the display module 100.

[0223] Exemplarily, with reference to Figure 17B , the orthographic projections of the support layer 21, the second water-absorbing layer 23, the third water-absorbing layer 24, and the first adhesive layer 25 on the display panel 10 coincide. In addition to increasing the supporting force, it can also increase the bonding area of the first adhesive layer 25, making the film layer bonded to the first adhesive layer 25 more firm. At the same time, the water-absorbing area of the second water-absorbing layer and the third water-absorbing layer 24 will also increase, facilitating the absorption of water vapor in the environment and ensuring the dryness of the display module 100.

[0224] Exemplarily, the material of the first adhesive layer 25 includes foam adhesive or grid adhesive. Here, the grid adhesive includes a plurality of intersecting vertical lines and horizontal lines. The setting of the horizontal lines and vertical lines in the grid adhesive enables the grid adhesive to better discharge the air between the grid adhesive and the film layer bonded to the first adhesive layer 25 when pasting, reducing the probability of bubble generation, so that the film layer bonded to the first adhesive layer 25 fits more smoothly when bonding, and the bonding tightness can be improved.

[0225] In some embodiments, with reference to Figure 2A and Figure 2B , the display module 100 further includes a protective layer 70 disposed between the display panel 10 and the support component layer 20.

[0226] Exemplarily, the protective layer 70 has a supporting function and can provide an effective supporting force to the display module 100 to prevent damage caused by extrusion.

[0227] In some embodiments, as shown in Figure 2A and Figure 2B , the display module 100 further includes at least one functional film layer 90 located between the cover plate 30 and the display panel 10; the cover plate 30 includes a central area AA and a peripheral area BB disposed outside the central area AA; the positive projection of the film layer closest to the cover plate 30 in the at least one functional film layer 90 on the cover plate 30 is located in the peripheral area BB; a flow blocking groove 31 is formed on the side of the cover plate 30 close to the display panel 10, and the flow blocking groove 31 is located in the peripheral area BB; the display module 100 further includes: a waterproof adhesive 3, which is disposed between the cover plate 30 and the display panel 10 and around the functional film layer 90, and the boundary portion of the waterproof adhesive 3 away from the functional film layer 90 is located in the flow blocking groove 31.

[0228] It can be understood that setting the waterproof adhesive 3 around the functional film layer 90 can ensure that the internal devices of the functional film layer 90 are not affected by water vapor, so as to improve the reliability of the display module 100. Among them, the functional film layer 90 includes, for example, a support component layer 20, a display panel 10, a polarizer 5 disposed on one side of the light-emitting surface 10a of the display panel 10, and a protective adhesive layer 6 disposed on the side of the polarizer 5 away from the display panel.

[0229] The above-mentioned flow blocking groove 31 is formed on the side of the cover plate 30 close to the display panel 10, and the boundary portion of the waterproof adhesive 3 away from the functional film layer 90 is defined in the flow blocking groove 31, which can prevent the overflow of the waterproof adhesive 3.

[0230] In some embodiments, the material of the waterproof adhesive 3 is a black fluorinated liquid.

[0231] It should be noted that, from the foregoing part of the content, the waterproof adhesive 3 is located in the peripheral area BB, and the material of the waterproof adhesive 3 is a black fluorinated liquid, that is to say, the waterproof adhesive 3 is an opaque material. Therefore, the waterproof adhesive 3 has a light-shielding effect.

[0232] In some embodiments, with reference to Figure 19A and Figure 19B, a first ink layer 71 and a second ink layer 72 are located on the side of the cover plate 30 close to the display panel 10, the first ink layer 71 is farther away from the display panel 10 than the second ink layer 72, and the first ink layer 72 and the second ink layer 72 are both arranged in the peripheral area BB; a humidity color-changing coating 4, the humidity color-changing coating 4 and the first ink layer 71 are located in the same layer, and are located on the side of the first ink layer 71 away from the central area AA; the second ink layer 72 covers the boundary between the humidity color-changing coating 4 and the first ink layer 71.

[0233] Exemplarily, the thickness of the first ink layer 71 and the second ink layer 72 are both 6 μm to 10 μm. For example, the thickness of the first ink layer 71 is 6 μm, 8 μm or 10 μm, and the thickness of the second ink layer 72 is 6 μm, 8 μm or 10 μm.

[0234] It should be noted that, since the cover plate 30 is provided with a blocking groove 31 on the side close to the display panel 10, Figure 18A and Figure 18B As shown, the blocking groove 31 is located in the peripheral area BB, that is, the blocking groove 31 is opened on the cover plate 30, and the first ink layer and the second ink layer 72 are both arranged in the peripheral area BB and located on the side of the cover plate 30 close to the display panel 10, so that the first ink layer and the second ink layer 72 can cover the blocking groove 31.

[0235] In some embodiments, the material of the humidity color-changing coating 4 can be color-changing ink. The humidity color-changing coating 4 can sense the humidity in the environmental physical quantity and present different degrees of color changes depending on the humidity level in the environment.

[0236] Reference Figure 19A and Figure 19B The humidity color-changing coating 4 is located in the same layer as the first ink layer 71 and is located on the side of the first ink layer 71 away from the central area AA. The humidity color-changing coating 4 is connected to the first ink layer 71. The second ink layer 72 covers the boundary between the humidity color-changing coating 4 and the first ink layer 71. On the one hand, it is to improve the flatness of the display module 100, and on the other hand, it can avoid light leakage. Figure 19B The second ink layer 72 only covers a portion of the humidity color-changing coating 4 to prevent the humidity color-changing coating 4 from being completely blocked. Therefore, the color change of the humidity color-changing coating 4 set as above can be observed in real time from the light-emitting surface 10a side of the display panel 10.

[0237] like Figure 1 and Figure 2AAs shown in the figure, some embodiments of the present disclosure further provide a display device 1000, including the display module 100 provided in any of the above embodiments. The display module 100 includes a driving chip 40. The driving chip 40 is electrically connected to the display panel 10 of the display module 100. The driving chip 40 is configured to provide a driving signal to the display module 100 to control the display of the display module 100.

[0238] In some embodiments, as Figure 2A shown, the display panel 10 is a flexible display panel. By bending the flexible display panel, the display module 100 is electrically connected to the driving chip 40. The area where the display panel 10 is bent to the backlight surface 10b side is electrically connected to the driving chip 40.

[0239] Exemplarily, the display panel 10 includes a display portion and a bending portion; the display portion can be the part of the display panel 10 for displaying images. The bending portion is configured to be bent to the side away from the display panel 10 of the support component layer 20; the driving chip 40 is disposed on the side of the bending portion of the display panel 10 away from the support component layer 20; the flexible printed circuit board 60 is connected to the bending portion of the display panel 10 and is located on the side of the bending portion of the display panel 10 away from the support component layer 20.

[0240] Here, the driving chip 40 includes at least one of microchips such as a source driver chip, a touch chip, a timing controller, and a gamma circuit. The embodiments of the present disclosure do not make specific limitations here.

[0241] In some embodiments, a packaging layer is further included on the side of the driving chip 40 away from the display panel 10, which can block moisture and oxygen and has a certain protective effect on the driving chip 40.

[0242] In still other embodiments, as Figure 12A shown, the display module 100 includes a chip-on-film 80 and a flexible printed circuit board 60. One end of the chip-on-film 80 is connected to the display panel 10, and the other end is connected to the flexible printed circuit board 60. The driving chip 40 is bonded on the chip-on-film 80. The driving chip 40 is configured to provide a driving signal to the display module 100 to control the display of the display module 100.

[0243] In other embodiments, as Figure 2A shown, the display device 1000 further includes a printed circuit board 50 disposed on the side of the backplane assembly 2 away from the display panel 10. The printed circuit board 50 is electrically connected to the bending portion of the display panel 10 through the flexible printed circuit board 60.

[0244] Exemplarily, an optically clear adhesive (OCA for short) is provided between the flexible circuit board 60 and the bent portion of the display panel 10, and a pressure sensitive adhesive (PSA for short) is provided between the printed circuit board 50 and the support component layer 20. Among them, both the optically clear adhesive and the pressure sensitive adhesive play an adhesive role.

[0245] The specific form of the display device 1000 in the embodiments of the present disclosure is not particularly limited. The display device 1000 adopts the display module 100 provided in the above embodiments. Therefore, the display device 1000 provided by the present disclosure has all the beneficial effects of the display module 100 provided in any of the above embodiments, which will not be elaborated here.

[0246] In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0247] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure, thinking of changes or substitutions, should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claimed rights.

Claims

1. A display module, characterized in that: include: A display panel, including a light emitting surface and a backlight surface; A back panel assembly, the back panel assembly being located on a backlight side of the display panel; A cover plate, the cover plate being located on a light emitting surface side of the display panel; At least one environment detection module, the environment detection module is at least arranged on one layer of the back plate assembly, or arranged on the surface of the cover plate; The environmental detection module is configured to change color according to changes in environmental physical quantities; the environmental physical quantities include: humidity, pressure, pH, harmful ion concentration, and temperature.

2. The display module according to claim 1, characterized in that: The environmental detection module includes one or more of a pressure detection module, a humidity detection module, an acid-base detection module, a harmful ion detection module, and a temperature detection module; The environment detection module comprises: Testing the grassroots; A detection reagent layer is disposed on one side of the detection substrate; the detection reagent layer is configured to react and show a color change under the action of environmental physical quantities; The environment detection module is attached to one layer of the backplane assembly or the cover plate through the detection base layer.

3. The display module according to claim 2, characterized in that: The environment detection module includes a humidity detection module, and the humidity detection module is configured to change color according to changes in environmental humidity.

4. The display module according to claim 3, characterized in that: The humidity detection module includes a first humidity detection module; the first humidity detection module is configured to change the color depth according to the change of environmental humidity, and the color depth change is reversible.

5. The display module according to claim 3, characterized in that: The humidity detection module includes a second humidity detection module; the second humidity detection module is configured to change the color depth according to the change of the ambient humidity; The second humidity detection module includes a humidity detection base layer and a humidity reaction layer which are stacked, and the humidity reaction layer is configured to react with condensation in the environment to show a change in color depth.

6. The display module according to claim 2, characterized in that: The environment detection module includes a pressure-sensitive detection module, which is configured to change color according to the pressure applied to the location where it is located; The pressure sensing detection module comprises: Pressure sensing base layer; A donor layer disposed on the pressure-sensitive detection base layer; A receiving layer disposed on a side of the donor layer away from the pressure-sensitive detection base layer; The donor layer and the receiving layer are configured to react under pressure to form an indentation, and the donor layer is configured to change from a first color to a second color when the indentation is formed, and the depth of the second color is related to the pressure applied to the pressure sensing detection module.

7. The display module according to claim 2, characterized in that: The environmental detection module includes an acid-base detection module, and the acid-base detection module is configured to change color according to the environmental pH; The acid-base detection module comprises: Acid-base testing base; An acid-base reagent layer is arranged on the acid-base detection base layer; the acid-base reagent layer is configured to change from an initial color to a first reaction color in an acidic environment, and change from an initial color to a second reaction color in an alkaline environment.

8. The display module according to claim 2, characterized in that: The environmental detection module further includes a harmful ion detection module, and the harmful ion detection module is configured to change the color depth according to the concentration of the harmful ions; Harmful ion detection module includes: Ion detection base layer; The ion reaction layer is arranged on the ion detection substrate, and the ion reaction layer is configured to react with harmful ions and present a color depth change.

9. The display module according to claim 2, characterized in that: The environment detection module also includes a temperature detection module, and the temperature detection module is configured to change the color depth according to the temperature change in the environment; The temperature detection module comprises: Temperature detection base layer; A temperature reaction layer is disposed on the temperature detection substrate; the temperature reaction layer includes a reaction substance, and the reaction substance is configured to volatilize as the temperature rises.

10. The display module according to claim 1, characterized in that: The display module further comprises a particle detection film layer; the particle detection film layer is disposed on at least one layer of the back panel assembly and is configured to absorb suspended particles in the environment.

11. The display module according to claim 10, characterized in that: The particle detection film layer comprises: Particle detection base layer; A particle adsorption layer is disposed on the particle detection base layer, and the particle adsorption layer is configured to adsorb suspended particles in the environment.

12. The display module according to claim 1, characterized in that: The back panel assembly comprises: A support component layer disposed on one side of the backlight surface of the display panel; A chip-on-film connected to the display panel, the chip-on-film being configured to be bent to a side of the support component layer away from the display panel; A driving chip and a flexible circuit board disposed on a side of the support component layer away from the display panel; The cover plate comprises a central area and a peripheral area, wherein the peripheral area is located around the central area; The environment detection module is arranged at a position to be detected of the display module; The position to be detected includes at least one of the surface of the supporting component layer away from the display panel, the driving chip, the surface of the flexible circuit board away from the display panel, the peripheral area of ​​the cover plate and the surface of the side close to the display panel, and the surface of the chip-on-film away from the supporting component layer and away from the display panel.

13. The display module according to claim 12, characterized in that: At least two environment detection modules are arranged at the position to be detected of the display module. The at least two environment detection modules are of different types and are stacked; or, the at least two environment detection modules are staggered and tiled.

14. The display module according to claim 12, characterized in that: At least one environment detection module is arranged at the position to be detected of the display module; In the case where an environment detection module is provided at the position to be detected of the display module, the ratio of the total area of ​​the environment detection module to the area of ​​the position to be detected is greater than 60%; When multiple environmental detection modules are provided at the position to be detected of the display module, the multiple environmental detection modules are arranged in an array and at intervals; or, the multiple environmental detection modules are in contact with each other, and the total area of ​​the multiple environmental detection modules accounts for more than 60% of the area of ​​the position to be detected.

15. The display module according to any one of claims 12 to 14, characterized in that: At least one environment detection module is disposed on a side of the support component layer away from the display panel, and the at least one environment detection module includes at least one of a pressure detection module, a humidity detection module, an acid-base detection module, and a harmful particle detection module; And / or, the particle detection module layer is arranged on a side of the support component layer away from the display panel.

16. The display module according to any one of claims 12 to 14, characterized in that: At least one environment detection module is disposed on the driving chip, and the at least one environment detection module includes at least one of a humidity detection module, a pH detection module, a pressure detection module, and a temperature detection module.

17. The display module according to any one of claims 12 to 14, characterized in that: At least one environment detection module is arranged on a side of the flexible circuit board away from the display panel; the at least one environment detection module includes at least one of a pressure detection module, a humidity detection module, a temperature detection module and an acid-base detection module.

18. The display module according to any one of claims 12 to 14, characterized in that: At least one environment detection module is arranged in the peripheral area of ​​the cover plate and close to one side of the display panel; the at least one environment detection module includes at least one of a pressure detection module, an acid-base detection module and a humidity detection module.

19. The display module according to any one of claims 12 to 14, characterized in that: At least one environment detection module is arranged on a surface of the chip-on-film on one side away from the supporting component layer; the at least one environment detection module includes at least one of an acid-base detection module and a humidity detection module.

20. The display module according to any one of claims 12 to 14, characterized in that: The display module comprises a perforated area, wherein at least one through hole is arranged in the perforated area; the through hole at least penetrates the support component layer and the display panel; At least one of the environment detection modules is also arranged on a surface of the supporting component layer away from the display panel and located in the punching area, and the supporting component layer is located around the through hole.

21. The display module according to claim 20, characterized in that: The at least one environment detection module includes at least one of a humidity detection module and a pressure detection module.

22. The display module according to claim 12, characterized in that: The support component layer includes a support layer and a first water absorbing layer. A plurality of grooves are formed on a side of the support layer away from the display panel, and two adjacent grooves are connected to each other. The first water absorbing layer is arranged in the plurality of grooves.

23. The display module according to claim 22, characterized in that: The material of the first water-absorbing layer is water-absorbing resin.

24. The display module according to claim 22 or 23, characterized in that: The surface of the first water-absorbing layer is flush with the surface of the portion of the supporting layer where no groove is provided; The ratio of the thickness of the first water-absorbing layer to the thickness of the supporting layer is greater than 0 and less than 0.

5.

25. The display module according to claim 22, characterized in that: Each of the plurality of grooves has an orthographic projection on the display panel in a cross shape, a U-shaped shape or a honeycomb shape.

26. The display module according to claim 22, characterized in that: The support component layer also includes: The second water absorbing layer is arranged on a side of the support layer and the first water absorbing layer away from the display panel, and the second water absorbing layer is a water-permeable foam.

27. The display module according to claim 26, characterized in that: The support component layer also includes: A third water absorbing layer, the third water absorbing layer is arranged on a side of the supporting layer close to the display panel, and the third water absorbing layer is a buffer foam; The second water absorbing layer and the third water absorbing layer both have a plurality of loose pores; The first glue layer is disposed on a side of the third water absorbing layer close to the display panel.

28. The display module according to any one of claims 1 to 11, characterized in that: The display module further comprises at least one functional film layer located between the cover plate and the display panel; The cover plate comprises a central area and a peripheral area arranged outside the central area; the orthographic projection of the film layer closest to the cover plate in at least one functional film layer on the cover plate is located in the peripheral area; A blocking groove is formed on a side of the cover plate close to the display panel, and the blocking groove is located in the peripheral area; The display module also includes: A waterproof glue is arranged between the cover plate and the display panel and around the functional film layer, and a boundary portion of the waterproof glue away from the functional film layer is located in the flow blocking groove.

29. The display module according to claim 28, characterized in that: The material of the waterproof glue is black fluorinated liquid.

30. The display module according to claim 28, characterized in that: Also includes: A first ink layer and a second ink layer are located on a side of the cover plate close to the display panel, the first ink layer is farther away from the display panel than the second ink layer, and the first ink layer and the second ink layer are both located in the peripheral area; A humidity color-changing coating is located in the same layer as the first ink layer and is located on a side of the first ink layer away from the central area; a second ink layer covers the boundary between the humidity color-changing coating and the first ink layer.

31. A display device, characterized in that: include: The display module according to any one of claims 1 to 30.

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