Display module

Abstract

The utility model discloses a display module which comprises a backlight plate, a polaroid plate, an OCA sheet, an FLIM sheet and a display screen. The display screen, the FLIM sheet, the OCA sheet, the polaroid plate and the backlight plate are sequentially stacked in the visual angle direction. Wherein the polaroid plate comprises a polaroid and a connecting plate; the edge of the connecting plate is provided with a hollow area; according to the utility model, the driving IC can be covered by the extension section, so that the driving IC is safer in reliable salt mist, high temperature and high humidity, and is not corroded by moisture. On the basis that the cost is not increased, the requirements of customers are met by optimizing the structural scheme. Specifically, after the display screen, the FLIM piece, the OCA piece, the polaroid plate and the backlight plate are stacked in sequence in the visual angle direction, the extension section corresponds to the empty area; as the OCA sheet is a soft body, the extension section can slowly fall to the surface of the driving IC so as to cover the driving IC.

Description

Technical Field

[0001] The utility model relates to the field of display screens, and particularly to a display module. Background Art

[0002] TFT display screens not only have good display effects but also are economical in price, and are particularly widely used in consumer smart watches, smart bracelets, smart homes, electronic cigarette products, etc. Typically, for example, the patent document with the application number CN201320085782.4 discloses an EPD screen touch display module for a smart watch, which uses an integrated OPS plastic screen or OGS tempered glass screen with touch function. The thickness is significantly reduced compared with existing watches. The thickness of the smart watch adopting the utility model is about 7.5 mm, so that people do not feel heavy when wearing it; a front light guide plate is used for light guiding to supplement light sources, improve illumination, and protect eyesight, solving the problem that the EPD screen cannot be seen clearly and normally in a visible environment with insufficient light. The LED lamp is placed at one corner of the front light guide plate, and the front light guide plate has an angle to reflect the LED light in, so that the light flux of the LED point light source can be more evenly distributed on the whole surface. The reflection mechanism is used to make greater use of the light flux and control the light distribution to achieve better display effects.

[0003] Another example is the patent document with the application number CN201620556673.X, which discloses a fully laminated TFT module. It is provided with a second retaining wall, so that when the cover glass is deformed, it can support the cover glass, and thus the cover glass is not easily damaged due to deformation, and further the overall service life of the TFT module is relatively high.

[0004] The above patent documents all show the structures of the display screen modules, and respectively solve the problems of the deformation of the cover glass and the relatively thick thickness of the watch, making it uncomfortable for users to wear. And the existing EPD screens cannot be displayed clearly and normally in a visible environment with insufficient light. However, in the actual operation process, there are still some problems:

[0005] At present, with the increasing market of TFT modules for smart watches, the usage environment of consumers is becoming more and more demanding, and the reliability requirements for single TFT modules are getting higher and higher. The single TFT module needs to pass salt spray, high temperature and high humidity tests, etc. When the display screen module passes the salt spray test, in order to protect the surface of the IC, an IC protective glue is used for protection. When the protective glue is applied to the surface of the IC, since the protective glue is liquid and has fluidity, there is a situation where a small part of the protective glue cannot completely cover the surface of the IC. When it comes into contact with water vapor, it is easily corroded by the water vapor. Summary of the Utility Model

[0006] Based on this, it is necessary to provide a display module, aiming to solve the problems raised in the above background technology. As the market for TFT modules in smartwatches and the like is getting larger, the usage environment of consumers is becoming more and more demanding, and the reliability requirements for single TFT modules are getting higher and higher. The TFT module monomer needs to pass salt spray, high temperature and high humidity tests, etc. When the display screen (5) module passes the salt spray test, in order to protect the surface of the IC, an IC protective glue is used for protection. When the protective glue is applied to the surface of the IC, since the protective glue is a liquid and has fluidity, there is a situation where a small part of the protective glue cannot completely cover the surface of the IC, and it is easily corroded by water vapor when in contact with water vapor.

[0007] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0008] A display module includes a backlight board, a polarizer board, an OCA film, a FLIM film, and a display screen: along the viewing angle direction, the display screen, the FLIM film, the OCA film, the polarizer board, and the backlight board are stacked in sequence.

[0009] Among them, the polarizer board includes a polarizer fixedly connected to the backlight board and a connecting plate provided on the side of the polarizer away from the backlight board; an empty area is provided at the edge of the connecting plate.

[0010] It further includes a driving IC, and the driving IC is arranged in the empty area.

[0011] An extension section is provided at a position corresponding to the empty area at the edge of the OCA film, and the extension section is used to cover the driving IC.

[0012] Further, the extension section and the OCA film are integrally provided.

[0013] Further, when the extension section covers the driving IC, the edge of the extension section is flush with the edge of the connecting plate.

[0014] Further, a limiting block is provided on the surface of the extension section away from the driving IC to limit the position of the extension section.

[0015] Further, the limiting block includes a fixed block and a clamping block. The fixed block is provided at one end of the extension section away from the OCA film, and the clamping block is provided on the side of the fixed block close to the OCA film and is connected to the FLIM film.

[0016] Further, the fixed block is flush with the edge of one end of the extension section away from the OCA film.

[0017] Further, the length of the fixed block is at least half of the length of the clamping block.

[0018] Further, the limiting block includes a fixed clamping block disposed on the surface of the extension section away from the end of the OCA sheet, and an activity cover connected to the FLIM sheet is sheathed outside the fixed clamping block, and the cross section of the activity cover is in a U shape.

[0019] Further, there is a gap between the inner U-shaped side wall of the activity cover and the fixed clamping block.

[0020] Further, the inner U-shaped side wall of the activity cover is provided with a protrusion.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The utility model can cover the driving IC through the extension section, so that the driving IC is safer in reliability salt spray and high temperature and high humidity and is not corroded by water vapor. The requirements of customers are met by optimizing the structural scheme without increasing the cost. Specifically, when stacked in sequence along the viewing angle direction as the display screen, the FLIM sheet, the OCA sheet, the polarizing sheet board and the backlight board, the extension section will correspond to the empty area; since the OCA sheet is a soft body, the extension section will slowly fall onto the surface of the driving IC, thereby covering the driving IC. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view structural schematic diagram of the display screen provided by the utility model;

[0024] Figure 2 It is a side view structural schematic diagram of the OCA sheet provided by the utility model;

[0025] Figure 3 It is a side view structural schematic diagram of the backlight board provided by the utility model;

[0026] Figure 4 is Figure 3 a structural schematic diagram of the position A in

[0027] Figure 5 It is a structural schematic diagram of the activity cover provided by the utility model.

[0028] The reference signs in the drawings are explained as follows:

[0029] 1. Backlight board; 2. Polarizing sheet board; 3. OCA sheet; 4. FLIM sheet; 5. Display screen; 6. Polarizing sheet; 7. Connecting plate; 8. Driving IC; 9. Fixed block; 10. Clamping block; 11. Fixed clamping block; 12. Activity cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] A TFT module is a liquid crystal display module, and its full name is Thin Film Transistor Liquid Crystal Display Module. The TFT module has characteristics such as high brightness, high contrast, fast response, and wide viewing angle, and is widely used in electronic products, such as smartphones, tablets, monitors, and automotive navigation systems, etc. By using thin film transistor technology, the TFT module can achieve independent control of each pixel point, making the display effect clearer and more precise.

[0032] The polarizer 6 is usually made of a polyvinyl alcohol (PVA) film, with a layer of dye molecules with polarization characteristics coated on it. These molecules are arranged in a certain direction, so that when light passes through the film, only polarized light in a specific direction is allowed to pass through.

[0033] The OCA sheet 3 (Optically Clear Adhesive) is a highly transparent adhesive, which is widely used in the assembly of display screens of electronic products. Its main characteristics are excellent transparency and adhesion performance, which can provide reliable bonding between different materials while keeping the optical performance unaffected.

[0034] The FLIM sheet 4 is usually made of high-quality glass or quartz materials to ensure its optical performance and mechanical stability. The FLIM sheet 4 is an indispensable tool in fluorescence lifetime imaging microscopy, and it can provide high-quality fluorescence lifetime measurement results.

[0035] As described in the background technology, with the increasing market of TFT modules for smart watches and other products, the usage environment of consumers is becoming more and more demanding, and the reliability requirements for single TFT modules are getting higher and higher. The TFT module monomer needs to pass salt spray, high temperature and high humidity tests, etc. When the display screen module passes the salt spray test, in order to protect the surface of the IC, an IC protection glue is used for protection. When the protection glue is applied to the surface of the IC, since the protection glue is liquid and has fluidity, there is a situation where a small part of the protection glue cannot completely cover the surface of the IC, and it is easily corroded by water vapor when in contact with water vapor.

[0036] To solve this technical problem, the present utility model provides a display module.

[0037] Specifically, please refer to Figures 1-5 , a display module, comprising a backlight panel 1, a polarizer panel 2, an OCA film 3, a FLIM film 4, and a display screen 5: along the viewing angle direction, the display screen 5, the FLIM film 4, the OCA film 3, the polarizer panel 2, and the backlight panel 1 are stacked in sequence;

[0038] Among them, the polarizer panel 2 includes a polarizer 6 fixedly connected to the backlight panel 1 and a connecting plate 7 provided on the side of the polarizer 6 away from the backlight panel 1; an empty area is provided at the edge of the connecting plate 7;

[0039] It further includes a driving IC 8, and the driving IC 8 is disposed in the empty area;

[0040] An extension section is provided at a position corresponding to the empty area at the edge of the OCA film 3, and the extension section is used to cover the driving IC 8.

[0041] The present utility model can cover the driving IC 8 through the extension section, thereby making the driving IC 8 safer in reliability salt spray and high temperature and high humidity and not being corroded by water vapor. On the basis of not increasing costs, the requirements of customers are met by optimizing the structural scheme. Specifically, when the display screen 5, the FLIM film 4, the OCA film 3, the polarizer panel 2, and the backlight panel 1 are stacked in sequence along the viewing angle direction, the extension section will correspond to the empty area; since the OCA film 3 is a soft body, the extension section will slowly drop to the surface of the driving IC 8, thereby covering the driving IC 8.

[0042] The extension section is Figure 4 and Figure 5 at Q in

[0043] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0044] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0045] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0046] Please refer to Figures 1-3, A display module, comprising a backlight panel 1, a polarizer panel 2, an OCA film 3, a FLIM film 4, and a display screen 5: Along the viewing angle direction, the display screen 5, the FLIM film 4, the OCA film 3, the polarizer panel 2, and the backlight panel 1 are stacked in sequence;

[0047] Wherein, the polarizer panel 2 includes a polarizer 6 fixedly connected to the backlight panel 1 and a connecting plate 7 provided on a side of the polarizer 6 away from the backlight panel 1; An empty area is provided at the edge of the connecting plate 7;

[0048] It further includes a driving IC 8, and the driving IC 8 is arranged in the empty area;

[0049] An extension section is provided at a position corresponding to the empty area at the edge of the OCA film 3, and the extension section is used to cover the driving IC 8.

[0050] The utility model can cover the driving IC 8 through the extension section, thereby making the driving IC 8 safer in reliability salt spray and high temperature and high humidity and not being corroded by water vapor. By optimizing the structural scheme without increasing costs, the requirements of customers can be met. Specifically, when the display screen 5, the FLIM film 4, the OCA film 3, the polarizer panel 2, and the backlight panel 1 are stacked in sequence along the viewing angle direction, the extension section will correspond to the empty area; Since the OCA film 3 is a soft body, the extension section will slowly fall onto the surface of the driving IC 8, thereby covering the driving IC 8.

[0051] In some specific embodiments, the extension section and the OCA film 3 are integrally provided. The extension section and the OCA film 3 are made of the same material.

[0052] In some specific embodiments, when the extension section covers the driving IC 8, the edge of the extension section is flush with the edge of the connecting plate 7.

[0053] Such a setting is to make the length of the extension section sufficient so that the situation of incomplete coverage will not occur.

[0054] As Figure 4 shown, the display module provided in Embodiment 1 is further optimized. A limiting block is provided on a surface of the extension section away from the driving IC 8 for limiting the position of the extension section. Since the extension section will show a softening phenomenon, in order to prevent the phenomenon of large-scale movement of the extension section, the limiting block is used to limit the position of the extension section.

[0055] In some specific embodiments, the limiting block includes a fixed block 9 and a clamping block 10. The fixed block 9 is arranged at one end of the extension section away from the OCA sheet 3, and the clamping block 10 is arranged on the side of the fixed block 9 close to the OCA sheet 3 and is connected to the FLIM sheet 4. By arranging the fixed block 9 at one end of the extension section away from the OCA sheet 3 and arranging the clamping block 10 on the side of the fixed block 9 close to the OCA sheet 3 and connecting it to the FLIM sheet 4, the fixed block 9 and the clamping block 10 can block each other to achieve the purpose of limiting the position of the extension section.

[0056] In some specific embodiments, the fixed block 9 is flush with the edge of one end of the extension section away from the OCA sheet 3. Such an arrangement is to ensure that the extension section covers the driving IC 8 to the greatest extent, and to avoid the situation where the extension section is stuck by the clamping block 10 during the covering process and cannot cover the driving IC 8.

[0057] In some specific embodiments, the length of the fixed block 9 is at least half of the length of the clamping block 10.

[0058] Such an arrangement is to avoid the relative movement between the fixed block 9 and the clamping block 10.

[0059] As Figure 5 shown, the display module provided in Embodiment 1 is further optimized. A limiting block is provided on the surface of the side of the extension section away from the driving IC 8 to limit the position of the extension section. Since the extension section will soften, in order to prevent the phenomenon of large-scale movement of the extension section, a limiting block is used to limit the position of the extension section.

[0060] The limiting block includes a fixed clamping block 11 arranged on the surface of one end of the extension section away from the OCA sheet 3. An activity cover 12 connected to the FLIM sheet 4 is externally covered on the fixed clamping block 11, and the cross-section of the activity cover 12 is in a U shape.

[0061] In some specific embodiments, there is a gap between the inner U-shaped side wall of the activity cover 12 and the fixed clamping block 11.

[0062] In some specific embodiments, the inner U-shaped side wall of the activity cover 12 is provided with a protrusion.

[0063] Since the extension section needs to move, the fixed clamping block 11 is covered by the activity cover 12. When the extension section moves, the fixed clamping block 11 will move in the gap, and the presence of the protrusion can prevent the fixed clamping block 11 from tilting in the activity cover 12 and other phenomena.

[0064] The using process of the display module provided by the present utility model is as follows:

[0065] The utility model can cover the driving IC8 through the extension section, so that the driving IC8 is safer in the reliability salt spray and high temperature and high humidity and is not corroded by water vapor. On the basis of not increasing the cost, the requirements of customers are met by optimizing the structural scheme. Specifically, when the display screen 5, the FLIM film 4, the OCA film 3, the polarizing plate 2 and the backlight plate 1 are stacked in sequence along the viewing angle direction, the extension section will correspond to the empty area; since the OCA film 3 is a soft body, the extension section will slowly fall onto the surface of the driving IC8, thereby covering the driving IC8.

[0066] In the utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific situations.

[0067] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, rather than all embodiments. The drawings show the preferred embodiments of the utility model, but do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the utility model more thorough and comprehensive. Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the utility model in other related technical fields shall be within the scope of the patent protection of the utility model by the same token.

Claims

1. A display module, characterized in that: It includes a backlight panel (1), a polarizer panel (2), an OCA film (3), a FLIM film (4), and a display screen (5): Along the viewing angle direction, the display screen (5), the FLIM film (4), the OCA film (3), the polarizer panel (2), and the backlight panel (1) are stacked in sequence; Among them, the polarizer panel (2) includes a polarizer (6) fixedly connected to the backlight panel (1) and a connecting plate (7) provided on the side of the polarizer (6) away from the backlight panel (1); An empty area is provided at the edge of the connecting plate (7); It further includes a driving IC (8), and the driving IC (8) is arranged in the empty area; An extension section is provided at a position corresponding to the empty area at the edge of the OCA film (3), and the extension section is used to cover the driving IC (8).

2. The display module according to claim 1, characterized in that: The extension section and the OCA film (3) are integrally provided.

3. The display module according to claim 1, characterized in that: When the extension section covers the driving IC (8), the edge of the extension section is flush with the edge of the connecting plate (7).

4. The display module according to claim 1, characterized in that: A limiting block is provided on the surface of the extension section away from the driving IC (8) for limiting the position of the extension section.

5. The display module according to claim 4, characterized in that: The limiting block includes a fixing block (9) and a clamping block (10). The fixing block (9) is arranged at one end of the extension section away from the OCA film (3), and the clamping block (10) is arranged on the side of the fixing block (9) close to the OCA film (3) and is connected to the FLIM film (4).

6. The display module according to claim 5, characterized in that: The fixing block (9) is flush with the edge of one end of the extension section away from the OCA film (3).

7. The display module according to claim 6, characterized in that: The length of the fixing block (9) is at least one-half of the length of the clamping block (10).

8. The display module according to claim 4, characterized in that: The limiting block includes a fixed clamping block (11) provided on the surface of one end of the extension section away from the OCA film (3), and a movable cover (12) connected to the FLIM film (4) is provided outside the fixed clamping block (11). The cross-section of the movable cover (12) is in a U shape.

9. The display module according to claim 8, characterized in that: There is a gap between the inner U-shaped wall of the movable cover (12) and the fixed clamping block (11).

10. The display module according to claim 9, characterized in that: The inner U-shaped wall of the movable cover (12) is provided with a protrusion.

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