Display module and display device

Abstract

A display module and a display device. The display module comprises a display panel, a backplane assembly, a cover plate, and at least one environment detection module. The display panel comprises a light emitting surface and a back surface. The backplane assembly is located on the back surface of the display panel. The cover plate is located on the light emitting surface of the display panel. The environment detection module is at least arranged on one layer of the backplane assembly or is arranged on the surface of the cover plate, and is configured to change color on the basis of changes in environmental physical quantities, wherein the environmental physical quantities include humidity, pressure, pH value, harmful ion concentration, and temperature.

Description

Display module and display device

[0001] This application claims priority to Chinese Patent Application No. 202410702647.2, filed on May 31, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of display, and in particular, to a display module and a display device. BACKGROUND

[0003] With the rapid development of display technology, display technologies such as liquid crystal display (LCD), organic light emitting display (OLED), quantum dot light emitting display (QLED), and micro light emitting display (MLED) have been widely used in people's daily life, such as smart phones, wearable watches, televisions, notebook computers, and vehicle displays, which have gradually spread in people's life. With the development of display technology, the requirements for product performance, service life, durability, and reliability of display devices are also increasing. SUMMARY

[0004] In one aspect, a display module is provided. The display module includes a display panel, a back plate assembly, a cover plate, and at least one environment detection module. The display panel includes a light-out surface and a back surface. The back plate assembly is located on the back surface side of the display panel. The cover plate is located on the light-out surface side of the display panel. The environment detection module is arranged on one of the layers of the back plate assembly or on the surface of the cover plate; the environment 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.

[0005] In some embodiments, the environment detection module includes one or more of a pressure detection module, a humidity detection module, a pH 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 arranged on one side of the detection base layer; the detection reagent layer is configured to react and present color changes under the action of environmental physical quantities; the environment detection module is attached to one of the layers of the back plate assembly or the cover plate through the detection base layer.

[0006] In some embodiments, the environmental detection module comprises a humidity detection module configured to change color according to changes in environmental humidity.

[0007] In some embodiments, the humidity detection module comprises a first humidity detection module configured to change color depth according to changes in environmental humidity, and the color depth change is reversible.

[0008] In some embodiments, the humidity detection module comprises a second humidity detection module configured to change color depth according to changes in environmental humidity; the second humidity detection module comprises a humidity detection base layer and a humidity reaction layer stacked together, and the humidity reaction layer is configured to react with condensation in the environment to change color depth.

[0009] In some embodiments, the environmental detection module comprises a pressure sensing detection module configured to change color according to the pressure received at the location thereof; the pressure sensing detection module comprises a pressure sensing detection base layer, a donor layer disposed on the pressure sensing detection base layer, and a receiver layer disposed on the side of the donor layer away from the pressure sensing detection base layer; the donor layer and the receiver layer are configured to react to form a pressure mark under pressure, and the donor layer is configured to change from a first color to a second color when the pressure mark is formed, and the depth of the second color is related to the pressure received by the pressure sensing detection module.

[0010] In some embodiments, the environmental detection module comprises an acid-base detection module configured to change color according to the pH of the environment; the acid-base detection module comprises 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 to change from the initial color to a second reaction color in an alkaline environment.

[0011] In some embodiments, the environmental detection module further comprises a harmful ion detection module configured to change color depth according to the concentration of harmful ions; the harmful ion detection module comprises an ion detection base layer and an ion reaction layer disposed on the ion detection base layer, and the ion reaction layer is configured to react with harmful ions and change color depth.

[0012] In some embodiments, the environmental detection module further comprises a temperature detection module configured to change color depth according to changes in temperature in the environment; the temperature detection module comprises a temperature detection base layer and a temperature reaction layer disposed on the temperature detection base layer; the temperature reaction layer comprises a reaction substance configured to volatilize as the temperature rises.

[0013] In some embodiments, the display module further comprises a particle detection film layer; the particle detection film layer is arranged on at least one layer of the back plate assembly and is configured to adsorb suspended particles in the environment.

[0014] In some embodiments, the particle detection film layer comprises a particle detection base layer and a particle adsorption layer arranged on the particle detection base layer, and the particle adsorption layer is configured to adsorb suspended particles in the environment.

[0015] In some embodiments, the back plate assembly comprises a support assembly layer arranged on one side of the display panel away from the backlight; a chip on film connected to the display panel, the chip on film is 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 arranged on the side of the support assembly layer away from the display panel; the cover plate comprises a central region and a peripheral region, and the peripheral region is located around the central region; the environmental detection module is arranged at a to-be-detected position of the display module; the to-be-detected position comprises at least one of the following: a surface on the side of the support assembly layer away from the display panel, the driving chip, a surface on the side of the flexible circuit board away from the display panel, a surface on the side of the peripheral region of the cover plate close to the display panel, and a surface on the side of the chip on film away from the support assembly layer away from the display panel.

[0016] In some embodiments, at least two environmental detection modules are arranged at the to-be-detected position of the display module, the types of the at least two environmental detection modules are different, and the at least two environmental detection modules are arranged in a stacked manner; or, the at least two environmental detection modules are arranged in a staggered manner.

[0017] In some embodiments, at least one environmental detection module is arranged at the to-be-detected position of the display module; in the case that one environmental detection module is arranged at the to-be-detected position of the display module, the ratio of the total area of the environmental detection module to the area of the to-be-detected position is greater than 60%; in the case that multiple environmental detection modules are arranged at the to-be-detected position of the display module, the multiple environmental detection modules are arranged in an array manner and are spaced apart; or, the multiple environmental detection modules are in contact with each other, and the ratio of the total area of the multiple environmental detection modules to the area of the to-be-detected position is greater than 60%.

[0018] In some embodiments, at least one environmental detection module is arranged on the side of the support assembly layer away from the display panel, and the at least one environmental detection module comprises 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 film layer is arranged on the side of the support assembly layer away from the display panel.

[0019] In some embodiments, at least one environment detection module is disposed on the driving chip, and the at least one environment detection module comprises at least one of a humidity detection module, a pH detection module, a pressure detection module, and a temperature detection module.

[0020] In some embodiments, at least one environment detection module is disposed on a side of the flexible circuit board away from the display panel; and the at least one environment detection module comprises at least one of a pressure detection module, a humidity detection module, a temperature detection module, and a pH detection module.

[0021] In some embodiments, at least one environment detection module is disposed on a side of the cover plate close to the display panel and in a peripheral region of the cover plate; and the at least one environment detection module comprises at least one of a pressure detection module, a pH detection module, and a humidity detection module.

[0022] In some embodiments, at least one environment detection module is disposed on a surface of a side of the COF layer away from the support component layer; and the at least one environment detection module comprises at least one of a pH detection module and a humidity detection module.

[0023] In some embodiments, the display module comprises a punched region, and at least one through hole is disposed in the punched region; the through hole at least penetrates the support component layer and the display panel; and at least one of the environment detection modules is further disposed on a surface of a side of the support component layer away from the display panel and located in the punched region, and the support component layer is located around the through hole.

[0024] In some embodiments, the at least one environment detection module comprises at least one of a humidity detection module and a pressure detection module.

[0025] In some embodiments, the support component layer comprises a support layer and a first water absorption layer, and a plurality of grooves are formed in a side of the support layer away from the display panel; adjacent two grooves in the plurality of grooves are connected; and the first water absorption layer is disposed in the plurality of grooves.

[0026] In some embodiments, a material of the first water absorption layer is water absorption resin.

[0027] In some embodiments, a surface of the first water absorption layer is flush with a surface of a portion of the support layer where no groove is disposed; a ratio of a thickness of the first water absorption layer to a thickness of the support layer is greater than 0 and less than 0.5.

[0028] In some embodiments, each groove in the plurality of grooves is a cross type, a back-to-back type, or a honeycomb type in an orthographic projection of the display panel.

[0029] In some embodiments, the support assembly layer further comprises: a second water absorption layer, the second water absorption layer is arranged on the side of the support layer and the first water absorption layer away from the display panel, and the second water absorption layer is water-permeable foam.

[0030] In some embodiments, the support assembly layer further comprises: a third water absorption layer, the third water absorption layer is arranged on the side of the support layer close to the display panel, and the third water absorption layer is buffer foam; the second water absorption layer and the third water absorption layer both have a plurality of loose holes; and a first adhesive layer, the first adhesive layer is arranged on the side of the third protective layer close to the display panel.

[0031] In some embodiments, the display module further comprises at least one functional film layer between the cover plate and the display panel; the cover plate comprises a central region and a peripheral region arranged on the periphery of the central region; the orthographic projection of the film layer closest to the cover plate in the at least one functional film layer on the cover plate is located in the peripheral region; the cover plate is provided with a flow resistance groove on the side close to the display panel, and the flow resistance groove is located in the peripheral region; the display module further comprises: waterproof adhesive arranged between the cover plate and the display panel, and the waterproof adhesive is arranged around the functional film layer, and the boundary part of the waterproof adhesive away from the functional film layer is located in the flow resistance groove.

[0032] In some embodiments, the material of the waterproof adhesive is black fluorinated liquid.

[0033] In some embodiments, the display module further comprises a first ink layer and a second ink layer on the side of the cover plate close to the display panel, the first ink layer is away from the display panel relative to the second ink layer, and the first ink layer and the second ink layer are both arranged in the peripheral region; a humidity color-changing coating layer, the humidity color-changing coating layer is in the same layer as the first ink layer and is located on the side of the first ink layer away from the central region; and the second ink layer covers the junction position of the humidity color-changing coating layer and the first ink layer.

[0034] In another aspect, a display device is provided. The display device comprises the display module according to any one of the above embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings needed to be used in some embodiments of the present disclosure. Obviously, the drawings in the following description are only the drawings of some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art according to these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limited to the actual size of the product, the actual process of the method, the actual time sequence of the signal, etc. involved in the embodiments of the present disclosure.

[0036] FIG. 1 is a plan view of a display device according to some embodiments of the present disclosure;

[0037] FIG. 2A is a cross-sectional view of a display module according to some embodiments of the present disclosure;

[0038] FIG. 2B is another cross-sectional view of a display module according to some embodiments of the present disclosure;

[0039] FIG. 2C is yet another cross-sectional view of a display module according to some embodiments of the present disclosure;

[0040] FIG. 2D is yet another cross-sectional view of a display module according to some embodiments of the present disclosure;

[0041] FIG. 2E is a structural view of an environment detection module according to some embodiments of the present disclosure;

[0042] FIG. 3A is a structural view of a pressure sensing detection module according to some embodiments of the present disclosure;

[0043] FIG. 3B is a color change comparison chart of a pressure sensing detection module according to some embodiments of the present disclosure;

[0044] FIG. 4A is a structural view of a first humidity detection module according to some embodiments of the present disclosure;

[0045] FIG. 4B is a structural view of a second humidity detection module according to some embodiments of the present disclosure;

[0046] FIG. 4C is a color change comparison chart of a second humidity detection module according to some embodiments of the present disclosure;

[0047] FIG. 5A is a structural view of an acid-base detection module according to some embodiments of the present disclosure;

[0048] FIG. 5B is a color change comparison chart of an acid-base detection module according to some embodiments of the present disclosure;

[0049] FIG. 6A is a structural view of a harmful ion detection module according to some embodiments of the present disclosure;

[0050] FIG. 6B is a color change comparison chart of a harmful ion detection module according to some embodiments of the present disclosure;

[0051] FIG. 7A is a structural view of a temperature detection module according to some embodiments of the present disclosure;

[0052] FIG. 7B is a color change comparison chart of a temperature detection module according to some embodiments of the present disclosure;

[0053] FIG. 8 is a structural view of an ion adsorption film layer according to some embodiments of the present disclosure;

[0054] FIG. 9A is a stacked structure diagram of two environment detection modules according to some embodiments of the present disclosure;

[0055] FIG. 9B is a stacked structure diagram of two environment detection modules according to some embodiments of the present disclosure;

[0056] FIG. 9C is another stacked structure diagram of two environment detection modules according to some embodiments of the present disclosure;

[0057] FIG. 9D is yet another stacked structure diagram of two environment detection modules according to some embodiments of the present disclosure;

[0058] FIG. 9E is another stacked structure diagram of two environment detection modules according to some embodiments of the present disclosure;

[0059] FIG. 9F is yet another stacked structure diagram of two environment detection modules according to some embodiments of the present disclosure;

[0060] FIG. 10A is a structure diagram of an environment detection module detecting a driving chip of a display module according to some embodiments of the present disclosure;

[0061] FIG. 10B is another structure diagram of an environment detection module detecting a driving chip of a display module according to some embodiments of the present disclosure;

[0062] FIG. 10C is yet another structure diagram of an environment detection module detecting a driving chip of a display module according to some embodiments of the present disclosure;

[0063] FIG. 11A is a structure diagram of an environment detection module detecting a support assembly layer of a display module according to some embodiments of the present disclosure;

[0064] FIG. 11B is another structure diagram of an environment detection module detecting a support assembly layer of a display module according to some embodiments of the present disclosure;

[0065] FIG. 11C is yet another structure diagram of an environment detection module detecting a support assembly layer of a display module according to some embodiments of the present disclosure;

[0066] FIG. 11D is another structure diagram of an environment detection module detecting a support assembly layer of a display module according to some embodiments of the present disclosure;

[0067] FIG. 11E is yet another structure diagram of an environment detection module detecting a support assembly layer of a display module according to some embodiments of the present disclosure;

[0068] FIG. 11F is still another structure diagram of an environment detection module detecting a support assembly layer of a display module according to some embodiments of the present disclosure;

[0069] FIG. 12A is a structural diagram of detecting a flexible circuit board by an environment detection module of a display module according to some embodiments of the present disclosure;

[0070] FIG. 12B is another structural diagram of detecting a flexible circuit board by an environment detection module of a display module according to some embodiments of the present disclosure;

[0071] FIG. 12C is yet another structural diagram of detecting a flexible circuit board by an environment detection module of a display module according to some embodiments of the present disclosure;

[0072] FIG. 12D is another structural diagram of detecting a flexible circuit board by an environment detection module of a display module according to some embodiments of the present disclosure;

[0073] FIG. 12E is yet another structural diagram of detecting a flexible circuit board by an environment detection module of a display module according to some embodiments of the present disclosure;

[0074] FIG. 13A is a structural diagram of detecting a cover plate by an environment detection module of a display module according to some embodiments of the present disclosure;

[0075] FIG. 13B is another structural diagram of detecting a cover plate by an environment detection module of a display module according to some embodiments of the present disclosure;

[0076] FIG. 13C is yet another structural diagram of detecting a cover plate by an environment detection module of a display module according to some embodiments of the present disclosure;

[0077] FIG. 13D is yet another structural diagram of detecting a cover plate by an environment detection module of a display module according to some embodiments of the present disclosure;

[0078] FIG. 14A is a structural diagram of detecting a chip on film by an environment detection module of a display module according to some embodiments of the present disclosure;

[0079] FIG. 14B is another structural diagram of detecting a chip on film by an environment detection module of a display module according to some embodiments of the present disclosure;

[0080] FIG. 14C is yet another structural diagram of detecting a chip on film by an environment detection module of a display module according to some embodiments of the present disclosure;

[0081] FIG. 14D is yet another structural diagram of detecting a chip on film by an environment detection module of a display module according to some embodiments of the present disclosure;

[0082] FIG. 14E is yet another structural diagram of detecting a chip on film by an environment detection module of a display module according to some embodiments of the present disclosure;

[0083] FIG. 15A is a structural diagram of detecting a punching area by an environment detection module of a display module according to some embodiments of the present disclosure;

[0084] FIG. 15B is another structural diagram of the environment detection module detecting the perforated area of the display module according to some embodiments of the present disclosure;

[0085] FIG. 15C is yet another structural diagram of the environment detection module detecting the perforated area of the display module according to some embodiments of the present disclosure;

[0086] FIG. 15D is still another structural diagram of the environment detection module detecting the perforated area of the display module according to some embodiments of the present disclosure;

[0087] FIG. 15E is yet another structural diagram of the environment detection module detecting the perforated area of the display module according to some embodiments of the present disclosure;

[0088] FIG. 16A is a structural diagram of a first water absorption layer and a support layer according to some embodiments of the present disclosure;

[0089] FIG. 16B is another structural diagram of a first water absorption layer and a support layer according to some embodiments of the present disclosure;

[0090] FIG. 16C is yet another structural diagram of a first water absorption layer and a support layer according to some embodiments of the present disclosure;

[0091] FIG. 17A is still another structural diagram of a first water absorption layer and a support layer according to some embodiments of the present disclosure;

[0092] FIG. 17B is a structural diagram of a support assembly layer according to some embodiments of the present disclosure;

[0093] FIG. 18A is a structural diagram of a cover plate in a display module according to some embodiments of the present disclosure;

[0094] FIG. 18B is a cross-sectional structural diagram of the cover plate in FIG. 18A along the cross-sectional line EE according to some embodiments of the present disclosure;

[0095] FIG. 19A is another structural diagram of a cover plate in a display module according to some embodiments of the present disclosure;

[0096] FIG. 19B is a structural diagram of a humidity indicating layer and an ink layer in FIG. 19A along the cross-sectional line FF according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0097] The technical solutions in some embodiments of the present disclosure will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present disclosure, but not all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present disclosure.

[0098] Unless the context clearly requires otherwise, throughout the description and the claims, the term "comprise," and variations thereof (e.g., "comprises" and "comprising"), will be construed to be inclusive in a manner consistent with the term's plain meaning, namely, "including but not limited to." In describing the description, the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example" or "some examples," and the like, are intended to mean that a certain feature, structure, material, or characteristic is included in at least one embodiment or example of the disclosure, and is used in

[0099] Hereinafter, the terms "first", "second", etc. are used only for the purpose of description, and should not be construed as indicating or implying relative importance or implying that the indicated technical features are limited in number. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the disclosure, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0100] In describing some embodiments, "coupled" and "connected," and variations thereof, can be used. The term "connected" should be interpreted broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrated; 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" can also mean that two or more components 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.

[0101] "A, B, and C at least one of" has the same meaning as "at least one of A, B, or C", and includes the following combinations of A, B, and C: only A, only B, only C, a combination of A and B, a combination of A and C, a combination of B and C, and a combination of A, B, and C.

[0102] "A and / or B" includes the following three combinations: only A, only B, and a combination of A and B.

[0103] As used herein, the term "if' is optionally interpreted as meaning "when" or "while" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [stated condition or event] is detected" is optionally interpreted as meaning "upon determining" or "in response to determining" or "upon detecting [stated condition or event]" or "in response to detecting [stated condition or event]," depending on the context.

[0104] The use of "adapted to" or "configured to" herein means open and inclusive language that does not exclude additional devices or steps not specifically recited.

[0105] Additionally, the use of "based on" means open and inclusive, as the process, step, calculation, or other action based on a stated condition or value can actually be based on additional conditions or values beyond those stated.

[0106] As used herein, "about," "approximately," or "circa" includes the recited value and the mean within an acceptable range of deviation from the particular value, as determined by one of ordinary skill in the art considering the measurement in question and the error in measuring the particular quantity (i.e., the limitations of the measurement system).

[0107] As used herein, "parallel," "perpendicular," "equal" includes the recited condition and conditions that approximate the recited condition, the approximation being within an acceptable range of deviation, as determined by one of ordinary skill in the art considering the measurement in question and the error in measuring the particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and near parallel, where the acceptable range of deviation for near parallel can be, for example, within 5%; "perpendicular" includes absolute perpendicular and near perpendicular, where the acceptable range of deviation for near perpendicular can also be, for example, within 5%; and "equal" includes absolute equality and near equality, where the acceptable range of deviation for near equality can be, for example, a difference between the two that is less than or equal to 5% of either.

[0108] It will be understood that when a layer or element is referred to as being "on" another layer or substrate, it can be directly on the other layer or substrate, or intervening layers can also be present.

[0109] Exemplary embodiments are described herein with reference to cross-sectional and / or plan view illustrations that are schematic illustrations of idealized embodiments. Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and / or tolerances, are to be expected. Thus, embodiments should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an etched region illustrated as a rectangle will, typically, have rounded or curved features. Thus, the regions illustrated in the figures are schematic and their shapes are not intended to illustrate the precise shape of a region of a device and are not intended to limit the scope of exemplary embodiments.

[0110] At present, with the development of OLED display technology, in the fields of mobile wear, scene office, vehicle and aviation entertainment, OLED display has gradually become mainstream. Accordingly, the requirements of OLED display technology on product performance and service life are higher and higher, and the internal working environment of the product is more and more complex. The humidity condensation, acid and alkali, heavy ions, temperature and other factors in the environment of the whole machine, as well as the harsh environment during assembly, transportation and use, will have important influence on the product performance and service life. When these factors exceed the rated range that the product can withstand, it may cause the product performance to decline or permanent damage. Since the product shell is a closed environment, it is not possible to directly confirm the internal working environment. When the product is affected by environmental factors and causes malfunctions or performance failure, it is not possible to quickly trace the triggering factors and take timely measures to solve the problem.

[0111] Based on this, some embodiments of the present disclosure provide a display module and a display device. By embedding multiple detection layers in the display module, the state change of the detection layer is observed in real time, the influencing factors that may cause the performance failure of the display module are traced, the performance failure reason of the display module is quickly analyzed, and corresponding measures are taken in time, thereby improving the service life and quality of the display module.

[0112] The display module and the display device provided by the present disclosure are introduced below.

[0113] As shown in FIG. 1, some embodiments of the present disclosure provide a display device 1000, which can be any device that displays both motion (e.g., video) and still (e.g., still images) and both text and images. More specifically, it is contemplated that the embodiments can be implemented in or in association with a variety of electronic devices such as, but not limited to, mobile telephones, wireless devices, personal data assistants (PDAs), handheld or portable computers, GPS receivers / navigators, cameras, MP4 players, camcorders, game consoles, wrist watches, clocks, calculators, television monitors, flat panel displays, computer monitors, auto displays (e.g., odometer display, etc.), cockpit controls and / or displays, camera view displays (e.g., display of a rear view camera in a vehicle), electronic photographs, electronic billboards or signs, projections, architectural structures, packaging, and aesthetic structures (e.g., display of images on a piece of jewelry), among other products and components.

[0114] For example, as shown in FIG. 1, the display device 1000 can be a television, a notebook, a tablet, a mobile phone, a personal digital assistant (PDA), a navigator, a vehicle display, a flight display, a wearable device, a virtual reality (VR) device, or any product or component having a display function.

[0115] The display device 1000 described above can be any one of a flat display device, a curved display device, a foldable display device, or a rollable display device.

[0116] In the following, some embodiments of the present disclosure are schematically described by taking the display device 1000 as a flat display device as an example, but 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.

[0117] In some embodiments, as shown in FIG. 1, the display device 1000 includes a display module 100. The display module 100 includes a display panel 10.

[0118] 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 electrowetting display panel, an electrophoretic display panel, or the like, and the embodiments of the present disclosure are not limited thereto.

[0119] In the following, some embodiments of the present disclosure are schematically described by taking the display panel 10 as an organic light-emitting diode display panel as an example, but 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.

[0120] In some embodiments, as shown in FIG. 2A, the display module 100 further includes a back plate assembly 2, a cover plate 30, and at least one environment detection module 1. The display panel 10 includes a light-out surface 10a and a light-in surface 10b, and the light-out surface 10a is arranged opposite to the light-in surface 10b. The back plate assembly 2 is located on the light-in surface 10b side of the display panel 10, and the cover plate 30 is located on the light-out surface 10a side of the display panel 10. The environment detection module 1 is configured to change color according to the change of the environmental physical quantity, wherein the environmental physical quantity includes humidity, pressure, pH, harmful ion concentration, and temperature.

[0121] It should be noted that the environment detection module 1 is arranged to realize real-time detection of the working environment of the display module 100, that is, detection of the environmental physical quantity. The environment detection module 1 is configured to change color according to the change of the environmental physical quantity, wherein the color change includes a change of different colors and a change of the depth of the same color. The environment detection module 1 can present a color change according to the change of the environmental physical quantity. An operator can intuitively see the color change presented by the environment detection module. According to the color change or the depth of the color of the environment detection module 1, the cause of the failure or performance failure of the display module 100 caused by the environmental physical quantity can be quickly judged, and then relevant solutions can be taken.

[0122] In some embodiments, referring to FIGS. 2A, 2B, and 2D, the environment detection module 1 is arranged on at least one layer of the back plate assembly 2. The back plate assembly 2 includes a support assembly layer 20, a chip on film 80, a driving chip 40, and a flexible circuit board 60. The support assembly layer 20 is arranged on the light-in surface 10b side of the display panel 10. The chip on film 80 is connected to the display panel 10. The chip on film 80 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 arranged on the side of the support assembly layer 20 away from the display panel 10.

[0123] It should be noted that the environmental detection module 1 is arranged on one of the layers of the back plate assembly 2, that is, the environmental detection module 1 can be arranged on any one or more of the support assembly layer 20, the chip on film 80, the driving chip 40 and the flexible circuit board 60, and in this way, the operator can intuitively observe the color change of the environmental detection module 1 arranged at different positions of the back plate assembly 2, and can quickly and accurately analyze and judge the cause of the defect or performance failure problem of the display module 100 caused by the above-mentioned environmental physical quantity at different positions of the back plate assembly 2 according to the color change or the depth of the environmental detection module 1, and then the relevant solving measures can be taken quickly. The environmental detection module 1 in FIG. 2B is arranged on the support assembly layer 20, which is only an example.

[0124] In some embodiments, as shown in FIG. 2C, the environmental detection module 1 is arranged on the surface of the cover plate 30.

[0125] 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 surface of the display module 100, the environmental detection module 1 arranged on the surface of the cover plate 30 can be observed in real time on the front surface 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 the relevant solving measures can be taken. Exemplarily, the arrangement position of the environmental detection module 1 on the cover plate 30 is subject to the condition of not affecting the display, for example, it can be arranged in the frame area of the display module 100.

[0126] In some embodiments, referring to FIGS. 3A-7B, the environmental detection module 1 includes one or more of a pressure 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 FIG. 2E, the environmental detection module 1 includes a detection base layer 101 and a detection reagent layer 102 arranged on one side of the detection base layer 101, and the detection reagent layer 102 is configured to react and present color change under the action of the environmental physical quantity. The environmental detection module 1 is attached to one of the layers of the back plate assembly 2 or the cover plate 30 through the detection base layer 101.

[0127] The detection base layer 101 serves as a base layer of the environmental detection module 1, and 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 of the display module 100, and the detection reagent layer 102 faces the outside of the display module 100, so as to facilitate the color change of the detection reagent layer 102 according to the change of the environmental physical quantity. Exemplarily, the material of the detection base layer 101 can be paper, plastic or synthetic material. The detection reagent layer 102 has different materials corresponding to different detection environmental physical quantities.

[0128] The thickness H of the environmental detection module 1 can be 30 μm to 50 μm. For example, the thickness H of the environmental detection module 1 is 30 μm, 40 μm or 50 μm.

[0129] It should be explained that, when the environmental detection module 1 includes one of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, the harmful ion detection module 14 and the temperature detection module 15, the environmental detection module 1 is directly attached to one layer or the cover plate 30 of the back plate assembly 2. When the environmental detection module 1 includes multiple of the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, the harmful ion detection module 14 and the temperature detection module 15, the multiple environmental detection modules 1 can be attached to the same layer or different layers of the back plate assembly 2.

[0130] The performance and structure of each type of environmental detection module are introduced below.

[0131] In some embodiments, as shown in FIGS. 4A-4C, the environmental detection module 1 includes the humidity detection module 12, which is configured to change color according to the change of environmental humidity.

[0132] In some embodiments, referring to FIG. 4A, the humidity detection module 12 includes a first humidity detection module 121, which is configured to change color depth according to the change of environmental humidity, and the color depth change is reversible.

[0133] Exemplarily, referring to FIG. 4A, the first humidity detection module 121 has a two-dimensional code pattern, and the two-dimensional code pattern in the figure is only schematic and does not represent an actual two-dimensional code. The first humidity detection module 121 is made of a color-changing ink of a sensing material. The first humidity detection module 121 can sense humidity in the environmental physical quantity. As shown in FIG. 4A, the color of the first humidity detection module 121 can reversibly change in depth. That is, the color of the two-dimensional code of the first humidity detection module 121 gradually becomes lighter until disappears as the humidity increases, and the color of the first humidity detection module 121 gradually becomes deeper until the two-dimensional code is displayed again as the humidity decreases. Alternatively, the color of the two-dimensional code of the first humidity detection module 121 gradually becomes lighter until disappears as the humidity decreases, and the color of the first humidity detection module 121 gradually becomes deeper until the two-dimensional code is displayed as the humidity increases. The reversible color change feature makes the first humidity detection module 121 reusable, thereby saving costs.

[0134] The first humidity detection module 121 having the two-dimensional code pattern can scan the relevant information of the display module 100 in real time, such as the code, the date, and the like, which is beneficial to analysis and tracing when the display module 100 performance declines or fails.

[0135] In some embodiments, referring to FIG. 4B, the humidity detection module 12 includes a second humidity detection module 122. The second humidity detection module 122 is configured to change in 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 stacked together. The humidity reaction layer 1222 is configured to react with condensation in the environment and change in color depth.

[0136] It should be noted that the humidity reaction layer 1222 does not contain cobalt elements, which can avoid pollution to the environment caused by high cobalt content. In the case of high humidity, condensation can occur. The humidity reaction layer 1222 can react with the condensation in the environment. Specifically, referring to FIG. 4B, the condensation is formed by a plurality of water vapor molecules Q. Referring to FIG. 4B, the humidity reaction layer 1222 has a plurality of water vapor molecules. The water vapor molecules Q in the environment diffuse to the humidity reaction layer 1222 to react and change in color irreversibly. Referring to FIG. 4C, which is a color change diagram of the second humidity detection module 122, it can be seen from FIG. 4C that the deeper the color change of the humidity reaction layer 1222, the greater the degree of condensation in the environment. By providing the second humidity detection module 122, it can be quickly analyzed and determined whether the location is due to high environmental humidity to cause condensation, thereby causing short circuit of the device and burning caused by the performance failure of the display module 100, and remedial measures can be taken in a timely manner to address the performance problems.

[0137] In some embodiments, as shown in FIGS. 3A and 3B, the environment detection module 1 comprises a pressure sensing detection module 11 configured to change color according to the pressure applied to the position where the pressure sensing detection module 11 is located; the pressure sensing detection module 11 comprises a pressure sensing detection base layer, a donor layer 112 disposed on the pressure sensing detection base layer 111, and a receiver layer 113 disposed on the side of the donor layer 112 away from the pressure sensing detection base layer 111; the donor layer 112 and the receiver layer 113 are configured to react to form a pressure mark under the action of pressure, and the donor layer 112 is configured to change from a first color D1 to a second color D2 when the pressure mark is formed, and the depth of the second color is related to the pressure applied to the pressure sensing detection module 11.

[0138] It should be explained that the material of the donor layer 112 is a pixel particle, and when the pressure sensing detection module 1 is subjected to stress, the pixel particle reacts with the receiver layer 113 to form a pressure mark, at which time the color of the donor layer 112 changes from the first color D1 to the second color D2. For example, as shown in FIG. 3B, the first color D1 is white, and the second color D2 is red, and the deeper the second color, the greater the degree of compression. By providing the pressure sensing detection module 11 described above, it can be quickly analyzed and determined whether the position is subjected to high-intensity compression or pulling, thereby causing the display module 100 to fail due to the rupture, damage, etc. of the device, and appropriate remedial measures can be taken in a timely manner to address the performance problems.

[0139] In some embodiments, as shown in FIGS. 5A and 5B, the environment detection module 1 comprises an acid-base detection module 13 configured to change color according to the pH of the environment; the acid-base detection module 13 comprises 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 to change from the initial color O to a second reaction color O2 in an alkaline environment.

[0140] It should be noted that the stronger the acidity of the environment, the deeper the degree of the first reaction color O1 of the acid-base reagent layer 132, and the stronger the alkalinity of the environment, the deeper the degree of the second reaction color O2 of the acid-base reagent layer 132. For example, 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, and the second reaction color O2 is a cool color such as green, blue-green, blue, or blue-violet. By providing the acid-base detection module 13 described above, it can be quickly analyzed and determined whether the position has a high degree of acid-base that causes the display module 100 to fail due to corrosion, damage, etc. of the device, and appropriate remedial measures can be taken in a timely manner to address the performance problems.

[0141] In some embodiments, as shown in FIGS. 6A and 6B, the environment detection module 1 further comprises a harmful ion detection module 14 configured to change color depth according to the harmful ion concentration; the harmful ion detection module 14 comprises an ion detection base layer 141 and an ion reaction layer 142 disposed on the ion detection base layer 141, the ion reaction layer 142 is configured to react with harmful ions and present color depth changes.

[0142] It should be noted that the ion reaction layer 142 is provided with ions that can react with harmful ions, and after the ion reaction layer 142 reacts with harmful ions, the color of the ion reaction layer 142 changes in depth according to the concentration of harmful ions. The higher the concentration of harmful ions, the darker the color of the ion reaction layer 142. For example, the display module 100 may generate sulfur ions during use, affecting customer experience and physical health. That is, by setting the harmful ion detection module 14, it can quickly analyze and determine whether there is a high concentration of harmful ions in the location, and take appropriate measures in a timely manner.

[0143] In some embodiments, as shown in FIGS. 7A and 7B, the environment detection module 1 further comprises a temperature detection module 15 configured to change color depth according to temperature changes in the environment; the temperature detection module 15 comprises a temperature detection base layer 151 and a temperature reaction layer 152 disposed on the temperature detection base layer 151; the temperature reaction layer 152 comprises a reaction substance configured to volatilize as the temperature rises.

[0144] 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, the color presented by the reaction substance becomes lighter due to the decrease in the reaction substance, 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, thereby presenting color depth changes. By setting the temperature detection module 15 and observing its color change, it can quickly determine whether the display module 100 has an overload temperature during operation, causing internal devices to be burned by high temperature and causing performance failure of the display module 100, and take appropriate measures in a timely manner.

[0145] In some embodiments, as shown in FIG. 8 in combination with FIG. 2A, the display module 100 further comprises a particle detection film layer 16 disposed on at least one layer of the back plate assembly 2 and configured to adsorb suspended particles in the environment.

[0146] Exemplarily, the particle detection film layer 16 can be attached to any one or more of the support assembly layer 20, the chip on film 80, the driving chip 40 and the flexible printed circuit 60.

[0147] In some embodiments, referring to FIG. 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.

[0148] It should be noted that the particle adsorption layer 162 has high adsorption and high purity of internal components, and can adsorb suspended particles generated in the working environment. When the performance of the display module 100 fails, the maintenance personnel can analyze the particle adsorption layer 162 to analyze the target particle concentration in the environment, and deduce whether the device or circuit has a chemical reaction or other physical reaction due to short circuit, and then quickly judge the cause of performance failure in the display module 100 according to the particle composition.

[0149] The following describes the position setting of the environmental detection module in the display module.

[0150] In some embodiments, as shown in FIGS. 2A-2C, the cover plate 30 includes a central region AA and a peripheral region BB located around the central region AA. The environmental detection module 1 is disposed at a to-be-detected position P of the display module 100, and in the case that the display module 100 further includes a particle detection film layer 16, the particle detection film layer 16 is also disposed at the to-be-detected position P of the display module 100; the to-be-detected position P includes at least one of a side surface of a support assembly layer (SCF, Super Clear Film) 20 away from the display panel 10 (hereinafter referred to as SCF region), a driving chip (IC, Integrated Circuit) 40 (hereinafter referred to as IC region), a flexible printed circuit (FPC, Flexible Printed Circuit) 60 away from the display panel 10 (hereinafter referred to as FPC region), a peripheral region BB of the cover plate 30 and close to a side surface of the display panel 10 (hereinafter referred to as edge packaging region), a chip on film (COF, Chip On Film) 80 away from the support assembly layer 20 and away from a side surface of the display panel 10 (hereinafter referred to as COF region).

[0151] The position to be detected is a position in the display module that is more susceptible to environmental factors. By placing the environmental detection module in the position that is susceptible to environmental factors, the color change of the environmental detection module can be observed to accurately detect the environmental physical quantity at the position, thereby tracing the influencing factors that may cause product performance failure, quickly distinguishing the causes of product performance failure, and timely taking appropriate measures.

[0152] As shown in FIGS. 2A and 2B, the environmental detection module 1 is arranged at the position P to be detected of the display module 100. In the case where the environmental detection module 1 includes one of the pressure detection module 11, the humidity detection module 12, the acid-base detection module 13, the harmful ion detection module 14, and the temperature detection module 15, the particle detection film layer 16 is also arranged at the position P to be detected of the display module 100. In this case, the position P to be detected can be any one of the side surface of the support assembly layer 20 away from the display panel 10, the driving chip 40, the side surface of the flexible circuit board 60 away from the display panel 10, the side surface of the peripheral region BB of the cover plate 30 close to the display panel 10, and the side surface of the COF 80 away from the support assembly layer 20 away from the display panel 10.

[0153] As shown in FIGS. 2A and 2C, the environmental detection module 1 is arranged at the position P to be detected of the display module 100. In the case where the environmental detection module 1 includes one of the pressure detection module 11, the humidity detection module 12, the acid-base detection module 13, the harmful ion detection module 14, and the temperature detection module 15, the particle detection film layer 16 is also arranged at the position P to be detected of the display module 100. In this case, the position P to be detected can be any one of the side surface of the support assembly layer 20 away from the display panel 10, the driving chip 40, the side surface of the flexible circuit board 60 away from the display panel 10, the side surface of the peripheral region BB of the cover plate 30 close to the display panel 10, and the side surface of the COF 80 away from the support assembly layer 20 away from the display panel 10.

[0154] In some embodiments, as shown in FIGS. 9A-9C in combination with FIG. 2C, at least two environmental detection modules 1 are arranged at the to-be-detected position P 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 arranged in a stacked manner; or, the at least two environmental detection modules 1 are arranged in a staggered manner.

[0155] For example, referring to FIG. 9A, there are two environmental detection modules 1 at the to-be-detected position P of the display module 100 in FIG. 9A, and the types of the two environmental detection modules 1 are different, which can be any two of the pressure 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, and the two environmental detection modules 1 are arranged in a stacked manner to simultaneously detect the changes of two different environmental physical quantities at the to-be-detected position P. In FIG. 9A, the two environmental detection modules 1 are taken as the pressure detection module 11 and the acid-base detection module 13 as an example, the stacked manner of the pressure detection module 11 and the acid-base detection module 13 is direct superposition in the vertical direction, the pressure detection module 11 is located on the acid-base detection module 13, and the acid-base detection module 13 is directly attached to the to-be-detected position P to simultaneously detect the changes of the pressure and the pH at the to-be-detected position P. In FIG. 9B, the two environmental detection modules 1 are taken as the pressure detection module 11 and the second humidity detection module 122 as an example, the stacked manner of the pressure detection module 11 and the second humidity detection module 122 is direct superposition in the vertical direction, the pressure detection module 11 is located on the second humidity detection module 122, and the second humidity detection module 122 is directly attached to the to-be-detected position P to simultaneously detect the changes of the pressure and the humidity at the to-be-detected position P.

[0156] The different types of environmental detection modules 1 at the to-be-detected position P can adopt a laminated design scheme, and by using the superposition scheme, the detection layers can be separated for observation of the color changes of each layer of detection reagent layer 102 during later analysis and tracing, thereby realizing the detection of multiple environmental physical quantities by the environmental detection module 1 and simultaneously tracing multiple environmental impact factors.

[0157] Exemplarily, referring to FIGS. 9C-9F, the two environmental detection modules 1 at the to-be-detected position P of the display module 100 are different in type, 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, and the two environmental detection modules 1 are staggered and tiled, so as to simultaneously detect the changes of two different environmental physical quantities at the to-be-detected position P. The staggered and tiled arrangement means that the two environmental detection modules 1 have no overlapping in orthographic projection on the plane where they are located, and the detection reagent layer 102 of each environmental detection module 1 can be exposed to the environment, so as to have a large contact area with condensation, harmful ions, etc. in the external environment, facilitating the perception and detection of the environmental physical quantity, and in the later analysis and tracing, the environmental detection module 1 does not need to be processed, and the color change of each type of environmental detection module 1 can be directly observed, so as to conveniently and accurately detect multiple environmental physical quantities by using the environmental detection module, and multiple environmental influencing factors can be simultaneously traced.

[0158] For example, referring to FIGS. 9C and 9D, the two environmental detection modules 1 are taken as the pressure sensing detection module 11 and the acid-base detection module 13, the pressure sensing detection base layer 111 and the acid-base detection base layer 131 are located in 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 in one piece, which is equivalent to that the pressure sensing detection base layer 111 and the acid-base detection base layer 131 are simultaneously attached to the to-be-detected position P, the donor layer 112, the receiving layer 113, and the acid-base reagent layer 132 are staggered and arranged in the same layer, and the orthographic projection shape of the donor layer 112 and the receiving layer 113 at the to-be-detected position P and the orthographic projection shape of the acid-base reagent layer 132 at the to-be-detected position P combine to form a square, so as to simultaneously detect the changes of the pressure and the pH at the to-be-detected position P.

[0159] For example, referring to FIGS. 9E and 9F, the two environmental detection modules 1 are taken as the pressure sensing detection module 11 and the acid-base detection module 13, the pressure sensing detection base layer 111 and the acid-base detection base layer 131 are located in 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 in one piece, which is equivalent to that the pressure sensing detection base layer 111 and the acid-base detection base layer 131 are simultaneously attached to the to-be-detected position P, the donor layer 112, the receiving layer 113, and the acid-base reagent layer 132 are staggered and arranged in the same layer, and the orthographic projection shape of the donor layer 112 and the receiving layer 113 at the to-be-detected position P and the orthographic projection shape of the acid-base reagent layer 132 at the to-be-detected position P combine to form a circle, so as to simultaneously detect the changes of the pressure and the pH at the to-be-detected position P.

[0160] It should be noted that the orthographic projection of the above environmental detection module 1 at the to-be-detected position P can be a square, a circle, a polygon, etc., which is not limited herein.

[0161] In the present disclosure, "square, circular or polygonal shape" means that the shape is overall square, circular or polygonal, but is not limited to a standard square, circular or polygonal shape. That is, "square, circular or polygonal shape" herein includes not only a basic square, circular or polygonal shape, but also a shape similar to a square, circular or polygonal shape. For example, the long side and the short side of a rectangle are curved at each intersection, i.e., at the corners, i.e., the corners are smooth, and the shape is a rounded rectangle.

[0162] In some embodiments, referring to FIGS. 11A-11F, at least one environmental detection module 1 is arranged at the to-be-detected position P of the display module 100; in the case where one environmental detection module 1 is arranged at the to-be-detected position P of the display module 100, the ratio of the total area of the environmental detection module 1 to the area of the to-be-detected position P is greater than 60%.

[0163] For example, referring to FIG. 11F, one environmental detection module 1 is arranged at the to-be-detected position P of the display module 100. In order to accurately detect the change of the environmental physical quantity at the to-be-detected position P, the ratio of the total area of the environmental detection module 1 to the area of the to-be-detected position P is greater than 60%, for example, the shape of the environmental detection module 1 is consistent with the shape of the to-be-detected position P, i.e., the contour shape, and the environmental detection module 1 is attached to the middle region of the to-be-detected position P.

[0164] In other embodiments, referring to FIGS. 11A-11E, in the case where multiple environmental detection modules 1 are arranged at the to-be-detected position P of the display module 100, the multiple environmental detection modules 1 are arranged in an array and are spaced apart, or the multiple environmental detection modules 1 are in contact with each other, and the ratio of the total area of the multiple environmental detection modules 1 to the area of the to-be-detected position P is greater than 60%.

[0165] For example, referring to FIGS. 11A-11D, multiple environmental detection modules 1 are arranged at the to-be-detected position P of the display module 100, and the multiple environmental detection modules 1 are arranged in an array and are spaced apart. In FIGS. 11A-11C, the multiple environmental detection modules 1 are distributed in a dot array in the to-be-detected position P. In FIG. 11D, the multiple environmental detection modules 1 are distributed in a longitudinal strip in the to-be-detected position P. In FIG. 11E, the multiple environmental detection modules 1 are distributed in a transverse strip in the to-be-detected position P. By arranging and setting the environmental detection modules in multiple ways, the environmental detection modules can be as evenly distributed as possible in the region where the to-be-detected position is located, the area of the environmental detection modules can be as large as possible without affecting the normal function of the display module, and the detection accuracy of the environmental physical quantity in the region can be improved.

[0166] Exemplarily, referring to FIG. 11E, the to-be-detected position P of the display module 100 is provided with a plurality of environment detection modules 1, the plurality of environment detection modules 1 are in contact with each other, and the shape of each environment detection module 1 can be a regular shape such as a circular shape, a square shape, or a strip shape.

[0167] In some embodiments, referring to FIGS. 11A-11E, the to-be-detected position P is an SCF area, at least one environment detection module 1 is arranged on the side of the support assembly layer 20 away from the display panel 10, and the at least one environment 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.

[0168] It should be noted that, in the assembly process of the display module 100, the SCF area is prone to extrusion damage, and in the use process of the display module 100, the SCF area is prone to water vapor penetration, acid-base gas-liquid penetration, and damage caused by high concentration of harmful ions generated by the material of the SCF area due to temperature rise, that is, the SCF area is easily affected by environmental physical quantities such as pressure, humidity, pH, and harmful ions, therefore, the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, and the harmful particle detection module 14 are arranged in the SCF area, and the operator can directly observe the color change of each type of environment detection module 1, and quickly trace the influence of the environmental physical quantities on the SCF area according to the color change, and then take corresponding measures.

[0169] Exemplarily, referring to FIG. 11E, the number of environment detection modules 1 is one, and the environment 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.

[0170] Exemplarily, the number of environment detection modules 1 is two, and the environment detection modules 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 environment 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 mode of the two environment detection modules 1 on the support assembly layer 20 can be stacked or staggered and tiled. The number of environment detection modules 1 in FIGS. 11A-11D is multiple, and the multiple environment 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.

[0171] In other embodiments, referring to FIG. 2B, the particle detection module layer 16 is arranged on the side of the support assembly layer 20 away from the display panel 10.

[0172] For example, the particle detection film layer 16 can be one or more, and is evenly distributed on the side of the support assembly layer 20 away from the display panel 10.

[0173] In some embodiments, as shown in FIGS. 11A-11E, the position to be detected P is the SCF area, at least one environmental detection module 1 is arranged on the side of the support assembly layer 20 away from the display panel 10, the at least one environmental detection module 1 includes at least 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, and the particle detection film layer 16 is arranged on the side of the support assembly layer 20 away from the display panel 10.

[0174] For example, as shown in FIG. 11E, the number of environmental detection modules 1 is one, which can be 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, and the particle detection film layer 16 is arranged on the side of the support assembly layer 20 away from the display panel 10. At this time, the attachment mode of the environmental detection module 1 and the particle detection film layer 16 on the support assembly layer 20 can be stacked or staggered and tiled.

[0175] For example, the number of environmental detection modules 1 is multiple, which can be a combination of any 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 multiple environmental detection modules 1 are any of the pressure 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 film layer 16 is arranged on the side of the support assembly layer 20 away from the display panel 10. At this time, the attachment mode of the environmental detection module 1 and the particle detection film layer 16 on the support assembly layer 20 can be stacked or staggered and tiled, or arrayed and spaced apart.

[0176] In some embodiments, as shown in FIGS. 10A-10C, the position to be detected P is the IC area, at least one environmental detection module 1 is arranged on the driving chip 40, for example, the environmental detection module 1 covers the driving chip 40, and the at least one environmental detection module 1 includes at least one of the humidity detection module 12, the acid-base detection module 13, the pressure detection module 11, and the temperature detection module 15.

[0177] It should be noted that in the assembly process of the display module 100, the IC area is prone to extrusion damage, and in the working process of the display module 100, the IC area is prone to damage caused by water vapor penetration, acid and alkali liquid penetration, and high temperature working environment, that is, the IC area is easily affected by environmental physical quantities such as pressure, humidity, pH value, and temperature, therefore, the pressure detection module 11, the humidity detection module 12, the acid and alkali detection module 13, and the temperature detection module 15 are arranged in the IC area, and the operator can directly observe the color change of each type of environmental detection module 1, and quickly trace back to the influence of the environmental physical quantity on the IC area according to the color change, and then take corresponding measures.

[0178] Exemplarily, referring to FIGS. 10A and 10B, the number of environmental detection modules 1 is one, which can be one of the pressure detection module 11, the humidity detection module 12, the acid and alkali detection module 13, and the temperature detection module 15.

[0179] Exemplarily, the number of environmental detection modules 1 is two, which can be any two of the pressure detection module 11, the humidity detection module 12, the acid and alkali 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 and alkali detection module 13, and the temperature detection module 15. At this time, the two environmental detection modules 1 can be arranged in a stacked manner or a staggered manner on the driving chip 40. Referring to FIG. 10C, the number of environmental detection modules 1 is six, which can be two environmental detection modules 1 for each group, and the same type of environmental detection module 1.

[0180] The environmental detection module has various arrangement modes and shapes, for example, as shown in FIG. 10A, the display panel 10 is connected to the flexible circuit board 60 through the chip on film 80, the driving chip 40 is arranged on the side of the chip on film 80 close to the display panel 10, and the environmental detection module 1 surrounds the driving chip 40 in a long strip frame type, as shown in FIG. 10B, the driving chip 40 is directly packaged on the display panel 10 in a COP (Chip On Pi) manner, 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, and the environmental detection module 1 surrounds the driving chip 40 in a long strip frame type, as shown in FIG. 10C, one environmental detection module is arranged on each driving chip 40, and the environmental detection module is in a block shape. By arranging and setting the environmental detection module in various modes and shapes, the environmental detection module can be as evenly distributed as possible in the area where the environmental detection module is located, the laying area of the environmental detection module can be increased as much as possible under the premise of not affecting the normal function of the display module, and the detection accuracy of the environmental physical quantity in the area can be improved.

[0181] In some embodiments, as shown in FIGS. 12A-12E, the position P to be detected is the FPC area, and the at least one environment detection module 1 is arranged on the side of the flexible circuit board 60 away from the display panel 10; the at least one environment detection module 1 includes at least one of the pressure sensing detection module 11, the humidity detection module 12, the temperature detection module 15, and the acid-base detection module 13.

[0182] It should be noted that during the assembly process of the display module 100, the FPC area is prone to extrusion damage, and during the working process of the display module 100, the FPC area is prone to water vapor penetration, acid-base gas-liquid penetration, and damage caused by high-temperature working environment, that is, the FPC area is easily affected by environmental physical quantities such as pressure, humidity, pH, and temperature. Therefore, the pressure sensing detection module 11, the humidity detection module 12, the acid-base detection module 13, and the temperature detection module 15 are arranged in the FPC area, so that the operator can directly observe the color change of each type of environment detection module 1, and quickly trace back to the influence of the environmental physical quantities on the FPC area according to the color change, and then take corresponding measures.

[0183] For example, referring to FIGS. 12D and 12E, the number of environment detection modules 1 is one, which 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.

[0184] For example, the number of environment detection modules 1 is two, which 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 environment 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 two environment detection modules 1 can be arranged in a stacked manner or a staggered manner on the flexible circuit board 60. In FIGS. 12B and 12C, the number of environment detection modules 1 is six, and each two environment detection modules 1 are arranged as a group of the same type of environment detection module 1.

[0185] The environmental detection module 1 has various arrangements and shapes. For example, as shown in FIGS. 12B and 12C, six environmental detection modules 1 are arranged on the surface of the flexible circuit board 60 away from the display panel 10 in an array and at intervals, and the orthographic projections of the six environmental detection modules 1 on the flexible circuit board 60 are circular and square, respectively. As shown in FIG. 12D, one environmental detection module 1 is arranged on the surface of the flexible circuit board 60 away from the display panel 10, and the environmental detection module 1 is in a strip shape. As shown in FIG. 12E, one environmental detection module is arranged on the surface of the flexible circuit board 60 away from the display panel 10, and the outer contour of the environmental detection module 1 is the same as that of the flexible circuit board 60. By arranging and setting the environmental detection module in various ways, the environmental detection module can be as evenly distributed as possible in the area where the to-be-detected position is located, the laying area of the environmental detection module can be as large as possible without affecting the normal function of the display module, and the detection accuracy of the environmental physical quantity in the area can be improved.

[0186] In some embodiments, as shown in FIGS. 13A-13D and 2C, the to-be-detected position P is an edge packaging area, and at least one environmental detection module 1 is arranged on the peripheral area BB of the cover plate 30 and close to the display panel 10. The at least one environmental detection module 1 includes at least one of the pressure detection module 11, the acid-base detection module 13, and the humidity detection module 12.

[0187] It should be noted that, in the assembly process of the display module 100, the edge packaging area is prone to extrusion damage, and in the working process of the display module 100, the edge packaging area is prone to water vapor penetration and acid-base liquid penetration, which can cause circuit damage. That is, the edge packaging area is easily affected by environmental physical quantities such as pressure, humidity, and pH. Therefore, the pressure detection module 11, the humidity detection module 12, and the acid-base detection module 13 are arranged in the edge packaging area, and the operator can directly observe the color change of each type of environmental detection module 1, quickly trace the influence of the environmental physical quantity on the edge packaging area according to the color change, and then take appropriate measures.

[0188] For example, referring to FIG. 13D, the number of 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, and the acid-base detection module 13.

[0189] Exemplarily, the number of the environment detection modules 1 is two, which 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 environment 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 mode of the two environment detection modules 1 on the cover plate 30 can be stacked or staggered and tiled. The number of the environment detection modules 1 in FIGS. 13A-13C is multiple, and the multiple environment detection modules 1 can be any combination of any several of the pressure sensing detection module 11, the humidity detection module 12, and the acid-base detection module 13.

[0190] The environment detection module 1 has various arrangement modes and shapes. For example, as shown in FIGS. 13A-13C, multiple environment detection modules 1 are arranged on the edge packaging area in an array and at intervals, and the orthographic projection of the multiple environment detection modules 1 on the edge packaging area is circular or long strip-shaped. As shown in FIG. 13C, multiple environment detection modules 1 are uniformly arranged on the edge packaging area, wherein a part of the environment detection modules 1 has a long strip-shaped orthographic projection on the edge packaging area, and another part of the environment detection modules 1 is located at the corner position of the edge packaging area and is conformal to the corner position, forming an L shape, and both are uniformly and intervally distributed on the edge packaging area. As shown in FIG. 13D, one environment detection module is arranged on the edge packaging area, and the outer contour of the environment detection module 1 is the same as the outer contour of the edge packaging area. Through various arrangement and shape settings of the environment detection module, the environment detection module can be as evenly distributed as possible in the area where the to-be-detected position is located, the laying area of the environment detection module can be as large as possible under the premise of not affecting the normal function of the display module, and the detection accuracy of the environmental physical quantity in the area can be improved.

[0191] In some embodiments, as shown in FIGS. 14A-14E, the to-be-detected position P is a COF area, and at least one environment detection module 1 is arranged on the side surface of the chip-on-film 80 away from the support assembly layer 20; the at least one environment detection module 1 includes at least one of the acid-base detection module 13 and the humidity detection module 12.

[0192] It should be noted that, in the working process of the display module 100, water vapor penetration and acid-base gas-liquid penetration in the COF area can cause circuit damage, that is, the COF area is easily affected by the environmental physical quantities of humidity and pH value. Therefore, the humidity detection module 12 and the acid-base detection module 13 are arranged in the COF area, and the operator can directly observe the color change of each type of environment detection module 1, quickly trace the influence of the environmental physical quantity on the COF area according to the color change, and then take corresponding measures.

[0193] Exemplarily, referring to FIG. 14B, the number of the environment detection modules 1 is one, which can be one of the humidity detection module 12 and the acid-base detection module 13.

[0194] Exemplarily, the number of the environment detection modules 1 is two, which can be the humidity detection module 12 and the acid-base detection module 13, or both of the environment detection modules 1 are any one of the humidity detection module 12 and the acid-base detection module 13. At this time, the attachment mode of the two environment detection modules 1 on the cover film 80 can be a stacked setting or a staggered paving setting. The number of the environment detection modules 1 in FIG. 14D and FIG. 14E is six, and every two environment detection modules 1 are set as the same type of environment detection module 1.

[0195] In some examples, the display module 100 includes a plurality of cover films 80, each of which is connected to one end of the display panel 10 and is bent to the non-display side of the display panel 10. At least one environment detection module 1 is arranged on the surface of each cover film away from the support assembly layer 20, and a driving chip 40 is also arranged on the surface of each cover film away from the support assembly layer 20. The environment detection module 1 is farther away from the frame of the display module than the driving chip 40.

[0196] The environment detection module has various arrangement modes and shapes. For example, as shown in FIG. 14C, two environment detection modules are arranged on the surface of each cover film away from the support assembly layer 20, and the two environment detection modules are block-shaped and arranged at intervals. As shown in FIG. 14D, one environment detection module is arranged on the surface of each cover film away from the support assembly layer 20, and the environment detection module is strip-shaped. As shown in FIG. 14E, one environment detection module is arranged on the surface of each cover film away from the support assembly layer 20, and the environment detection module is strip-shaped and semi-surrounds the driving chip 40. By arranging and shaping the environment detection module in various ways, the environment detection module can be as evenly distributed as possible in the area where the detection position is located, the area of the environment detection module can be as large as possible without affecting the normal function of the display module, and the detection accuracy of the physical quantity of the environment in the area can be improved.

[0197] In some embodiments, as shown in FIG. 15A and FIG. 15B, the display module 100 includes a punching area K, and at least one through hole K1 is arranged in the punching area K. The through hole K1 at least penetrates the support assembly layer 20 and the display panel 10. At least one environment detection module 1 is also arranged on the surface of the support assembly layer 20 away from the display panel 10 and located in the punching area K, and the support assembly layer 20 is located around the through hole K1.

[0198] It should be noted that the through hole K1 is a camera hole, and the punching area K is the area where the camera hole is located.

[0199] Exemplarily, the environmental detection module 1 located at the punching area K is arranged at the periphery of the through hole K1, and the shape of the environmental detection module 1 can be a circular ring type, a square frame type, a long strip frame type or a contour type, as shown in FIGS. 15A, 15C, 15D and 15E respectively.

[0200] In some embodiments, referring to FIGS. 15A-15E, the at least one environmental detection module 1 includes at least one of the humidity detection module 12 and the pressure sensing detection module 11.

[0201] It should be noted that, during the assembly process of the display module 100, the punching area K is prone to extrusion damage, and during the working process of the display module 100, the punching area K is prone to water vapor penetration leading to circuit damage, that is, the punching area K is easily affected by the environmental physical quantities of humidity and pressure, therefore, the humidity detection module 12 and the pressure sensing detection module 11 are arranged at the punching area K, and the color change of each type of environmental detection module 1 can be directly observed by the operator, and the influence of the environmental physical quantities on the punching area K can be quickly traced according to the color change, and then corresponding solutions can be taken.

[0202] Exemplarily, referring to FIGS. 15A-15D, the number of the environmental detection module 1 is one, and the environmental detection module 1 can be one of the pressure sensing detection module 11 and the humidity detection module 12.

[0203] Exemplarily, referring to FIG. 15E, the number of the environmental detection module 1 is two, and the two environmental detection modules 1 are arranged adjacent to each other, and the environmental detection module 1 can be the pressure sensing detection module 11 or the humidity detection module 12, or both of the two environmental detection modules 1 are any one of the humidity detection module 12 and the pressure sensing detection module 11. At this time, the two environmental detection modules 1 can be arranged in a stacked manner or a staggered manner in the punching area K.

[0204] In some embodiments, referring to FIGS. 16A-16C, the support assembly layer 20 includes a support layer 21 and a first water absorption layer 22, and a plurality of grooves 211 are formed in the support layer 21 away from the display panel 10, and among the plurality of grooves 211, adjacent two grooves 211 are connected; the first water absorption layer 22 is arranged in the plurality of grooves 211.

[0205] It should be explained that, as shown in FIGS. 16A-16C, adjacent grooves 211 are connected, and here the connection means that adjacent two grooves 211 are connected, which is equivalent to that the first water absorption layer 22 is filled in the edge profile of the connected grooves 211, that is, the first water absorption layer 22 is an integral layer without interruption position, which can simplify the preparation process to a certain extent. At the same time, the grooves 211 not only accommodate the first water absorption layer 22, but also have a certain limiting effect on the first water absorption layer 22, preventing the water vapor in the first water absorption layer 22 from affecting other film layers.

[0206] In some embodiments, the material of the first water-absorbing layer 22 is super absorbent polymer (SAP).

[0207] It should be noted that in the case that the ambient humidity of the display module 100 is relatively high, the super absorbent polymer can absorb the moisture in the environment, ensuring the dryness of the display module 100 and preventing the internal devices of the display module 100 from being short-circuited or damaged due to too high ambient humidity.

[0208] Exemplarily, as shown in FIG. 17A, the material of the support layer 21 can include at least one of stainless steel, aluminum or copper. An etching process can be used to etch the metal material support layer into a plurality of grooves 211.

[0209] In some embodiments, as shown in FIG. 17B, the surface of the first water-absorbing layer 22 and the surface of the portion of the support layer 21 without the grooves 211 are flush; the ratio of the thickness h1 of the first water-absorbing layer 22 to the thickness h2 of the support layer 21 is greater than 0 and less than 0.5.

[0210] It should be explained that the ratio of the thickness h1 of the first water-absorbing layer 22 to the thickness h2 of the support layer 21 is set within a certain range, mainly to ensure the support performance of the support layer 21 and improve the stability of the structure.

[0211] In some embodiments, as shown in FIGS. 16A-16C, each groove 211 in the plurality of grooves 211 is a cross type, a hui type or a honeycomb type in the orthographic projection of the display panel 10.

[0212] Exemplarily, referring to FIG. 16A, each groove 211 in FIG. 16A is a cross type in the orthographic projection of the display panel 10. In FIG. 16A, only one cross type groove 211 is shown for the sake of illustration, and the edge positions of the plurality of grooves 211 are set as T-shaped in the orthographic projection of the display panel 10 for the aesthetics of the grooves. Here, this is only one example, and the structure of the edge positions of the plurality of grooves 211 is not limited.

[0213] Exemplarily, referring to FIG. 16B, each groove 211 in FIG. 16B is a hui type in the orthographic projection of the display panel 10, and adjacent two grooves 211 are connected to each other, which is equivalent to that the first water-absorbing layer 22 is filled in the annular area of each groove 211. Here, the hui type structure of the grooves 211 is only one example, and other annular regular structures can also be used.

[0214] Exemplarily, referring to FIG. 16C, each of the grooves 211 is in a honeycomb shape in the orthographic projection of the display panel 10, i.e., each of the grooves 211 is in a polygon in the orthographic projection of the display panel 10, and the honeycomb shape shown in FIG. 16C is only an example of the honeycomb shape, which is set as a hexagon, and adjacent two grooves 211 are connected to each other, which is equivalent to that the first water absorption layer 22 is filled in the annular area of the honeycomb shape of each of the grooves 211.

[0215] It should be noted that the above setting of the grooves 211 with different structures is to ensure the supporting performance of the support layer 21 and improve the stability of the overall structure of the display module 100.

[0216] In some embodiments, continuing to refer to FIG. 17B, the support assembly layer 20 further includes a second water absorption layer 23, which is arranged on the side of the support layer 21 and the first water absorption layer 22 away from the display panel 10, and the second water absorption layer 23 is high-water-permeable foam.

[0217] It should be noted that, since the surface of the first water absorption layer 22 and the surface of the part of the support layer 21 without the groove 211 are flush, considering the actual setting process, due to the difference in materials between the first water absorption layer 22 and the support layer 21, there may be a slight gap between the surfaces of the two, and the setting of the second water absorption layer 23 can avoid the gap problem. On the other hand, the second water absorption layer 23 is set as high-water-permeable foam, and when there is a large amount of water vapor in the environment, it can be permeated through the second water absorption layer 23 and further absorbed by the first water absorption layer 22, thereby ensuring the dryness of the side of the support layer 21 close to the display panel 10.

[0218] In some embodiments, continuing to refer to FIG. 17B, the support assembly layer 20 further includes a third water absorption layer 24 and a first adhesive layer 24, the third water absorption layer 24 is arranged on the side of the support layer 21 close to the display panel 10, and the third water absorption layer 24 is buffer foam; the second water absorption layer 23 and the third water absorption layer 24 each have a plurality of loose pores; and the first adhesive layer 24 is arranged on the side of the third water absorption layer 24 close to the display panel 10.

[0219] Exemplarily, the second water absorption layer 23 and the third water absorption layer 24 each have a plurality of loose pores, wherein the loose pores can permeate the water vapor in the environment, the second water absorption layer 23 itself has a water absorption effect and can directly absorb the moisture on the surface of the second water absorption layer 23, in addition, the loose pores of the second water absorption layer 23 can allow part of the water vapor in the environment to permeate into the first water absorption layer 22, and further absorb water through the superabsorbent resin, so as to ensure the dryness of the side of the support layer 21 close to the display panel 10, and the loose pores in the third water absorption layer 24 can again absorb the residual water vapor diffused into the third water absorption layer 24, thereby ensuring the dryness of the display panel 10 to ensure normal display and improve the reliability of the display module 100.

[0220] Exemplarily, referring to FIG. 17B, the support layer 21, the second water absorption layer 23, the third water absorption layer 24 and the first adhesive layer 25 are in the same projection on the display panel 10, which can not only increase the support force, but also increase the bonding area of the first adhesive layer 25, so that the film layer bonded with the first adhesive layer 25 is more firm, and the water absorption area of the second water absorption layer and the third water absorption layer 24 is also increased, which is convenient for absorbing water vapor in the environment and ensures the dryness of the display module 100.

[0221] Exemplarily, the material of the first adhesive layer 25 includes foam adhesive or grid adhesive. Here, the grid adhesive includes a plurality of intersecting longitudinal lines and transverse lines. The arrangement of the transverse lines and the longitudinal lines in the grid adhesive can better exhaust the air between the grid adhesive and the film layer bonded with the first adhesive layer 25 when the grid adhesive is pasted, which reduces the probability of air bubble generation, so that the film layer bonded with the first adhesive layer 25 is more flat when pasted, and the tightness of the bonding can be improved.

[0222] In some embodiments, referring to FIGS. 2A and 2B, the display module 100 further includes a protective layer 70 arranged between the display panel 10 and the support assembly layer 20.

[0223] Exemplarily, the protective layer 70 has a supporting effect, which can provide effective support force for the display module 100 to prevent damage caused by extrusion.

[0224] In some embodiments, as shown in FIGS. 2A and 2B, the display module 100 further includes at least one functional film layer 90 between the cover plate 30 and the display panel 10; the cover plate 30 includes a central area AA and a peripheral area BB arranged at the periphery of the central area AA; the film layer closest to the cover plate 30 in the at least one functional film layer 90 is in the same projection on the cover plate 30 and located in the peripheral area BB; the cover plate 30 is provided with a flow resistance groove 31 on the side close to the display panel 10, and the flow resistance groove 31 is located in the peripheral area BB; the display module 100 further includes a waterproof adhesive 3 arranged between the cover plate 30 and the display panel 10, and the waterproof adhesive 3 is arranged around the functional film layer 90, and the boundary part of the waterproof adhesive 3 away from the functional film layer 90 is located in the flow resistance groove 31.

[0225] It can be understood that the waterproof adhesive 3 is arranged around the functional film layer 90, which 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. The functional film layer 90, for example, includes the support assembly layer 20, the display panel 10, a polarizer 5 arranged on the light exit surface 10a side of the display panel 10, and a protective adhesive layer 6 arranged on the side of the polarizer 5 away from the display panel.

[0226] The cover plate 30 is provided with the flow resistance groove 31 on the side close to the display panel 10, and the boundary part of the waterproof adhesive 3 away from the functional film layer 90 is limited in the flow resistance groove 31, which can prevent the overflow of the waterproof adhesive 3.

[0227] In some embodiments, the material of the waterproof adhesive 3 is black fluorinated liquid.

[0228] It should be noted that, according to the above description, the waterproof adhesive 3 is located in the peripheral area BB, and the material of the waterproof adhesive 3 is black fluorinated liquid, that is, the waterproof adhesive 3 is opaque, so the waterproof adhesive 3 has the light shielding effect.

[0229] In some embodiments, referring to FIGS. 19A and 19B, the first ink layer 71 and the second ink layer 72 on the side of the cover plate 30 close to the display panel 10, the first ink layer 71 is away from the display panel 10 relative to the second ink layer 72, and the first ink layer and the second ink layer 72 are both arranged in the peripheral area BB; the humidity color-changing coating 4 is arranged in the same layer with the first ink layer 71 and on the side of the first ink layer 71 away from the central area AA; and the second ink layer 72 covers the junction of the humidity color-changing coating 4 and the first ink layer 71.

[0230] 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.

[0231] It should be noted that, according to the above description, the cover plate 30 is provided with the flow resistance groove 31 on the side close to the display panel 10, as shown in FIGS. 18A and 18B, the flow resistance groove 31 is located in the peripheral area BB, that is, the flow resistance groove 31 is arranged 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 on the side of the cover plate 30 close to the display panel 10, so the first ink layer and the second ink layer 72 can cover the flow resistance groove 31.

[0232] 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 color changes with the degree of humidity in the environment.

[0233] Referring to FIGS. 19A and 19B, the humidity discoloration coating 4 is located in the same layer as the first ink layer 71 and on the side of the first ink layer 71 away from the central area AA, the humidity discoloration coating 4 is in contact with the first ink layer 71, and the second ink layer 72 covers the junction of the humidity discoloration coating 4 and the first ink layer 71, which can improve the flatness of the display module 100 and avoid light leakage. According to FIG. 19B, the second ink layer 72 only covers part of the humidity discoloration coating 4, so that the humidity discoloration coating 4 is not completely blocked, and thus the color change of the humidity discoloration coating 4 can be observed in real time from the light-emitting surface 10a of the display panel 10.

[0234] As shown in FIGS. 1 and 2A, some embodiments of the present disclosure also provide a display device 1000, which includes the display module 100 provided by any of the above embodiments, and the display module 100 includes the 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.

[0235] In some embodiments, as shown in FIG. 2A, the display panel 10 is a flexible display panel, and the display module 100 is electrically connected to the driving chip 40 in a bending flexible display panel manner. The area of the display panel 10 bent to the side of the backlight surface 10b is electrically connected to the driving chip 40.

[0236] For example, the display panel 10 includes a display part and a bending part. The display part can be the part of the display panel 10 used for displaying images. The bending part is configured to be bent to the side of the support assembly layer 20 away from the display panel 10. The driving chip 40 is arranged on the side of the bending part of the display panel 10 away from the support assembly layer 20. The flexible circuit board 60 is connected to the bending part of the display panel 10 and located on the side of the bending part of the display panel 10 away from the support assembly layer 20.

[0237] Here, the driving chip 40 includes at least one of a source driving chip, a touch chip, a timing controller, a gamma circuit, and the like. The embodiments of the present disclosure are not limited herein.

[0238] In some embodiments, the side of the driving chip 40 away from the display panel 10 further includes a packaging layer, which can block water vapor and oxygen and has a certain protective effect on the driving chip 40.

[0239] In yet some embodiments, as shown in FIG. 12A, the display module 100 comprises a chip on film 80 and a flexible circuit board 60, the chip on film 80 is connected to the display panel 10 at one end and to the flexible circuit board 60 at the other end, and the chip on film 80 is bound with a driving chip 40, the driving chip 40 is configured to provide driving signals to the display module 100 and control the display of the display module 100.

[0240] In some other embodiments, as shown in FIG. 2A, the display device 1000 further comprises a printed circuit board 50 arranged on the side of the back plate assembly 2 away from the display panel 10, and the printed circuit board 50 is electrically connected to the bending part of the display panel 10 through the flexible circuit board 60.

[0241] Exemplarily, an optically clear adhesive (OCA for short) is arranged between the flexible circuit board 60 and the bending part of the display panel 10, and a pressure sensitive adhesive (PSA for short) is arranged between the printed circuit board 50 and the support assembly layer 20, wherein the optically clear adhesive and the pressure sensitive adhesive both play a role of adhesion.

[0242] The specific form of the display device 1000 described above is not specially limited in the embodiments of the present disclosure, and the display device 1000 adopts the display module 100 provided in the above embodiments, so the display device 1000 provided in the present disclosure has all the beneficial effects of the display module 100 provided in any one of the above embodiments, and will not be described here.

[0243] In the description of this specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0244] The above is merely a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can think of changes or replacements within the technical range disclosed in the present disclosure, which should be covered in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A display module, comprising: a display panel, comprising a light-out surface and a back surface; a back plate assembly, located on the back surface of the display panel; a cover plate, located on the light-out surface of the display panel; at least one environment detection module, disposed on one of the layers of the back plate assembly or on the surface of the cover plate; the environment detection module is configured to change color according to changes in environmental physical quantities, which include humidity, pressure, pH, harmful ion concentration, and temperature.

2. The display module of claim 1, wherein, The environment detection module includes one or more of a pressure sensing detection module, a humidity detection module, a pH detection module, a harmful ion detection module, and a temperature detection module. The environment detection module includes: a detection base layer; a detection reagent layer disposed on one side of the detection base layer, configured to react and change color under the action of environmental physical quantities; the environment detection module is attached to one of the layers of the back plate assembly or the cover plate through the detection base layer.

3. The display module of claim 2, wherein, The environment detection module includes a humidity detection module, which is configured to change color according to changes in environmental humidity.

4. The display module of claim 3, wherein, The humidity detection module includes a first humidity detection module, which is configured to change color depth according to changes in environmental humidity, and the color depth change is reversible.

5. The display module of claim 3, wherein, The humidity detection module includes a second humidity detection module, which is configured to change color depth according to changes in environmental humidity. The second humidity detection module includes a humidity detection base layer and a humidity reaction layer stacked together, and the humidity reaction layer is configured to react with condensation in the environment and change color depth.

6. The display module of claim 2, wherein, The environment detection module includes a pressure sensing detection module, which is configured to change color according to the pressure at its location. The pressure sensing detection module includes: a pressure sensing detection base layer; a donor layer disposed on the pressure sensing detection base layer; a receiving layer disposed 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 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 on the pressure sensing detection module.

7. The display module of claim 2, wherein, The environment detection module includes a pH detection module, which is configured to change color according to the pH of the environment. The pH detection module includes: a pH detection base layer; a pH reagent layer disposed on the pH detection base layer, configured to change from an initial color to a first reaction color in an acidic environment and to a second reaction color in an alkaline environment.

8. The display module of claim 2, wherein, The environment detection module also includes a harmful ion detection module, which is configured to change color depth according to the concentration of harmful ions. The harmful ion detection module includes: an ion detection base layer; an ion reaction layer disposed on the ion detection base layer, configured to react with harmful ions and change color depth.

9. The display module of claim 2, wherein, The environment detection module further comprises a temperature detection module configured to change color depth according to temperature change in the environment; The temperature detection module comprises: a temperature detection base layer; a temperature reaction layer disposed on the temperature detection base layer, the temperature reaction layer comprising a reaction substance configured to volatilize as temperature rises.

10. The display module of claim 1, wherein, The display module further comprises a particle detection film layer disposed on at least one layer of the backplate assembly and configured to adsorb suspended particles in the environment.

11. The display module of claim 10, wherein, The particle detection film layer comprises: a particle detection base layer; a particle adsorption layer disposed on the particle detection base layer and configured to adsorb suspended particles in the environment.

12. The display module of any one of claims 1-11, wherein The backplate assembly comprises: a support assembly layer disposed on one side of the display panel away from the backlight; a chip on film connected to the display panel, the chip on film being configured to be bent to a side of the support assembly layer away from the display panel; a driving chip and a flexible circuit board disposed on a side of the support assembly layer away from the display panel; The cover plate comprises a central region and a peripheral region surrounding the central region; The environment detection module is disposed at a detection position of the display module; The detection position comprises at least one of a surface on a side of the support assembly layer away from the display panel, the driving chip, a surface on a side of the flexible circuit board away from the display panel, a surface on a side of the peripheral region of the cover plate close to the display panel, and a surface on a side of the chip on film away from the support assembly layer away from the display panel.

13. The display module of claim 12, wherein, At least two environment detection modules are disposed at the detection position of the display module, the at least two environment detection modules are different in type, and the at least two environment detection modules are stacked or staggered and tiled.

14. The display module of claim 12, wherein, At least one environment detection module is disposed at the detection position of the display module; In the case where one environment detection module is disposed at the detection position of the display module, the total area of the environment detection module accounts for more than 60% of the area of the detection position; In the case where multiple environment detection modules are disposed at the detection position of the display module, the multiple environment detection modules are arranged in an array with intervals or are in contact with each other, and the total area of the multiple environment detection modules accounts for more than 60% of the area of the detection position.

15. The display module of any one of claims 12-14, wherein, At least one environment detection module is disposed on a side of the support assembly layer away from the display panel, and the at least one environment detection module comprises 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 film layer is disposed on a side of the support assembly layer away from the display panel.

16. The display module of claim 12-14, wherein, At least one environment detection module is arranged on the driving chip, and the at least one environment detection module comprises at least one of a humidity detection module, a pH detection module, a pressure sensing detection module and a temperature detection module.

17. The display module of any one of claims 12-14, wherein, At least one environment detection module is arranged on the flexible circuit board away from the display panel side; the at least one environment detection module comprises at least one of a pressure sensing detection module, a humidity detection module, a temperature detection module and a pH detection module.

18. The display module of any one of claims 12-14, wherein, At least one environment detection module is arranged on the periphery of the cover plate and close to the display panel side; at least one environment detection module comprises at least one of a pressure sensing detection module, a pH detection module and a humidity detection module.

19. The display module of any one of claims 12-14, wherein, At least one environment detection module is arranged on the surface of the cover film away from the support assembly layer; the at least one environment detection module comprises at least one of a pH detection module and a humidity detection module.

20. The display module of any one of claims 12-19, wherein, The display module comprises a punching area, and at least one through hole is arranged in the punching area; the through hole at least penetrates the support assembly layer and the display panel; At least one of the environment detection modules is also arranged on the surface of the support assembly layer away from the display panel, and is located in the punching area, and the support assembly layer is located in the periphery of the through hole.

21. The display module of claim 20, wherein, The at least one environment detection module comprises at least one of a humidity detection module and a pressure sensing detection module.

22. The display module of claim 12, wherein, The support assembly layer comprises a support layer and a first water absorption layer, a plurality of grooves are arranged on the side of the support layer away from the display panel, and adjacent two grooves in the plurality of grooves are connected; the first water absorption layer is arranged in the plurality of grooves.

23. The display module of claim 22, wherein, The material of the first water absorption layer is water absorption resin.

24. The display module of claim 22 or 23, wherein, The surface of the first water absorption layer is flush with the surface of the part of the support layer without grooves; 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.

25. The display module according to any one of claims 22 to 24, wherein, Each groove in the plurality of grooves is a cross type, a back type or a honeycomb type in the orthographic projection of the display panel.

26. The display module of any one of claims 22-25, wherein, The support assembly layer further comprises: A second water absorption layer is arranged on the side of the support layer and the first water absorption layer away from the display panel, and the second water absorption layer is water permeable foam.

27. The display module of claim 26, wherein, The support assembly layer further comprises: A third water absorption layer is arranged on the side of the support layer close to the display panel, and the third water absorption layer is buffer foam; The second water absorption layer and the third water absorption layer both have a plurality of loose holes; A first adhesive layer is arranged on the side of the third water absorption layer close to the display panel.

28. The display module of any one of claims 1-27, wherein, The display module further comprises at least one functional film layer between the cover plate and the display panel; The cover plate comprises a central area and a periphery area arranged on the periphery of the central area; the orthographic projection of the film layer closest to the cover plate in the at least one functional film layer on the cover plate is located in the periphery area; The cover plate is provided with a flow resistance groove on the side close to the display panel, and the flow resistance groove is located in the periphery area; The display module further comprises: A waterproof adhesive is arranged between the cover plate and the display panel, and the waterproof adhesive is arranged around the functional film layer, and a boundary portion of the waterproof adhesive away from the functional film layer is located in the flow resistance groove.

29. The display module of claim 28, wherein, The waterproof adhesive is black fluorinated liquid.

30. The display module of claim 28, wherein, Further comprising: A first ink layer and a second ink layer are arranged on the side of the cover plate close to the display panel, the first ink layer is away from the display panel relative to the second ink layer, and the first ink layer and the second ink layer are arranged in the peripheral area; A humidity color-changing coating layer is arranged in the same layer as the first ink layer and on the side of the first ink layer away from the central area, and the second ink layer covers the junction of the humidity color-changing coating layer and the first ink layer.

31. A display device comprising: The display module according to any one of claims 1-30.

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