CN113257132A - Slippage display device - Google Patents

Slippage display device Download PDF

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Publication number
CN113257132A
CN113257132A CN202110567562.4A CN202110567562A CN113257132A CN 113257132 A CN113257132 A CN 113257132A CN 202110567562 A CN202110567562 A CN 202110567562A CN 113257132 A CN113257132 A CN 113257132A
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CN
China
Prior art keywords
display module
display
sliding
layer
display device
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CN202110567562.4A
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Chinese (zh)
Inventor
廖富
丁立薇
闫德松
朱召吉
刘佳
后红琪
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Kunshan Govisionox Optoelectronics Co Ltd
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Kunshan Govisionox Optoelectronics Co Ltd
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Priority to CN202110567562.4A priority Critical patent/CN113257132A/en
Publication of CN113257132A publication Critical patent/CN113257132A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The utility model provides a display device slides, this display device slides includes main part, the portion of sliding and display module assembly. The two opposite ends of the display module are respectively fixed on the main body part and the sliding part. The display module assembly is including being located the fixed area on the main part and being located the district that slides outside the main part, and the display module assembly still includes two at least structural layers and is used for laminating at least one glue film of two at least structural layers. The surface of at least one structural layer facing the glue layer is provided with an isolation structure, the isolation structure comprises at least one groove, and the groove is filled with the glue layer. At least part of the isolation structure is located in the slip region. The wriggling of glue film can be restricted to isolation structure's recess, avoids the glue of glue film local gathering to appear and leads to display module assembly to warp to improve display module assembly's visual effect.

Description

Slippage display device
Technical Field
The present disclosure relates to the field of flexible displays, and in particular, to a sliding display device.
Background
Currently, the size of an electronic display product such as a mobile phone is limited due to the portability, accordingly, the screen ratio of the mobile phone is limited by the size of the product, and under the condition of fixed size, the screen ratio cannot be greatly broken through, so that the requirement of a user for pursuing a large screen, a large visual field and convenience in carrying is difficult to meet.
The flexible screen of the sliding electronic display product has a curling function, so that a smaller design area is allowed, and the flexible screen has a larger display area when being unfolded, so that the requirements of carrying convenience and large-screen display are met. However, the current sliding electronic display product is limited to the structural design of the flexible display screen, and the flexible display screen can cause boundary marks to appear in the process of repeatedly sliding, so that the display effect is influenced, the aesthetic feeling is reduced, and the user experience is reduced.
Disclosure of Invention
In view of this, the present disclosure provides a sliding display device, which sets an isolation structure in a display module to limit the creep of a glue layer, and in the sliding process of the display module, prevents the glue layer from being locally gathered to cause the deformation of the display module, thereby improving the visual effect of the display module.
The first aspect of the present disclosure provides a sliding display device, which includes a main body portion, a sliding portion, and a display module. The two opposite ends of the display module are respectively fixed on the main body part and the sliding part. The display module assembly is including being located the fixed area on the main part and being located the district that slides outside the main part, and the display module assembly still includes two at least structural layers and is used for laminating at least one glue film of two at least structural layers. The surface of at least one structural layer facing the glue layer is provided with an isolation structure, the isolation structure comprises at least one groove, and the groove is filled with the glue layer. At least part of the isolation structure is located in the slip region. For example, the main body part and the sliding part support the display module, and the display module may be unfolded along with the sliding of the sliding part.
In above-mentioned scheme, in the region that is provided with isolation structure, the glue film is filled in the recess, even if make display module assembly produce the deformation in the operation that slides, the glue film receives the constraint of recess and is difficult to the wriggle to reduce or eliminate because of the local deformation (for example thickening) scheduling problem of display module assembly that the operation that slides leads to, improve display device's visual effect.
In a sliding display device provided in a specific embodiment of the first aspect of the present disclosure, a shape of an orthogonal projection of the groove on the surface on which the display module is located includes at least one of a straight line shape and a curved line shape.
In the scheme, the linear groove is convenient to process, and the manufacturing process of the display module can be simplified; in addition, the curved grooves can further reduce the moving and creeping amplitude of the glue layer in all directions.
In a first aspect of the present disclosure, a sliding display device is provided, in which an extending direction of the groove is perpendicular to a sliding direction of the sliding portion. For example, the extending direction of the orthographic projection of the groove on the surface of the display module is perpendicular to the sliding direction of the sliding part.
In above-mentioned scheme, can avoid the glue film in the recess along the extending direction wriggling of recess to further reduce or eliminate because of the local deformation (for example thickening) scheduling problem of display module assembly that the operation leads to that slides, improve display device's visual effect.
In another specific embodiment of the first aspect of the present disclosure, there is provided a sliding display device, wherein the extending direction of the groove is parallel to the sliding direction of the sliding portion.
In above-mentioned scheme, be favorable to improving display module assembly along the tensile ability of glide direction, be favorable to display module assembly further to design into tensile formula display module assembly to further increase display area.
In a first specific embodiment of the present disclosure, the sliding display device is provided, wherein the groove includes a plurality of sub-grooves spaced apart from each other and sequentially arranged along the extending direction.
In the above scheme, for the glue layer located in one groove, the glue layer is divided into multiple sections by the sub-grooves, so that the glue layer can only creep in a single sub-groove, the gathering capability of the glue layer is further reduced, the problems of local deformation (such as thickening) of the display module caused by sliding operation and the like are further reduced or eliminated, and the visual effect of the display device is improved.
In a sliding display device provided in a specific embodiment of the first aspect of the present disclosure, an orthogonal projection of the sub-groove on a surface on which the display module is located is V-shaped or S-shaped.
In the sliding display device provided in one embodiment of the first aspect of the present disclosure, the display module includes a first end and a second end, the first end and the second end are located at two ends of the display module along a display surface of the display module, the first end is fixed on the main body portion, the second end is fixed on the sliding portion, the display module further includes a non-display surface deviating from the display surface, and the main body portion and the sliding portion are used for fixing the portion of the display module facing the non-display surface.
In the above scheme, when the display module assembly is fixed on the main body part and the sliding part, the part of the main body part and the sliding part for fixing the display module assembly is located on the back (non-display surface) of the display module assembly, that is, the main body part and the sliding part do not shield the display image of the display module assembly.
In a preferred embodiment of the first aspect of the present disclosure, the fixing area and the sliding area are provided with an isolation structure.
In the above scheme, the whole glue layer is restrained by the groove of the isolation structure, so that the deformation resistance of the whole display module is improved.
In another specific embodiment of the first aspect of the present disclosure, there is provided a sliding display device in which all regions of the sliding region are provided with the partition structure.
In the above scheme, only set up isolation structure in the district that slides, can increase the design area of the glue film of fixed area to improve the steadiness of display module assembly in the fixed area.
In another specific embodiment of the first aspect of the present disclosure, there is provided a sliding display device, wherein the sliding region includes a first region far from the fixed region and a second region contiguous to the fixed region, and the separation structure is located in the second region.
In the scheme, the isolation structure is only arranged in the second area, so that the design area of the whole isolation structure can be reduced, the design of the display module is simplified, and the manufacturing cost of the display module is reduced; in addition, the design area of the glue layer of the fixed area and the sliding area can be increased, so that the stability of the display module in the fixed area is improved.
In a sliding display device provided in a specific implementation manner of the first aspect of the present disclosure, the at least two structural layers include a supporting layer and a display panel, and the display module is fixed on the main body portion and the sliding portion through the supporting layer. The at least one glue layer comprises a first glue layer located between the support layer and the display panel. And an isolation structure is arranged on one side of at least one of the display panel and the supporting layer, which faces the first adhesive layer.
In the above scheme, through setting up isolation structure in order to retrain first glue film, display panel can not produce the deformation because of the gluey gathering of glue film, promptly, display panel can not only local deformation too big and appear the damage (for example the damage that local overstretch caused) to improve display panel's display effect.
In a sliding display device provided in a specific implementation manner of the first aspect of the present disclosure, the at least two structural layers further include a touch panel, and the touch panel is located on a side of the display panel away from the support layer. The at least one adhesive layer further comprises a second adhesive layer positioned between the touch panel and the display panel. And an isolation structure is arranged on one side of at least one of the display panel and the touch panel, which faces the second adhesive layer.
In the above scheme, the isolation structure is arranged to constrain the second adhesive layer, so that the touch panel is not deformed due to adhesive accumulation of the adhesive layer, and the touch precision is not reduced due to local deformation, thereby improving the touch function of the touch panel.
In a sliding display device provided in a specific implementation manner of the first aspect of the present disclosure, the at least two structural layers further include an optical film, and the optical film is located on a side of the touch panel away from the display panel. The at least one adhesive layer further comprises a third adhesive layer positioned between the touch panel and the optical film. And an isolation structure is arranged on one side of at least one of the touch panel and the optical film, which faces the third adhesive layer.
In the above scheme, through setting up isolation structure in order to retrain the third glue film, the optical film piece can not produce the deformation because of the gluey gathering of glue film to guarantee the degree of consistency of display module assembly light-emitting, improve visual effect.
Drawings
Fig. 1 is a schematic view of a partial structure of a sliding display device according to an embodiment of the present disclosure.
FIG. 2 is a cross-sectional view of a display module of the sliding display apparatus shown in FIG. 1 in an area A.
Fig. 3 is a schematic plan view of a display module of the sliding display device shown in fig. 2.
Fig. 4 is a schematic plan view of another display module of the sliding display device shown in fig. 2.
Fig. 5 is a schematic plan view illustrating a groove of an isolation structure included in a sliding display device according to an embodiment of the present disclosure.
Fig. 6 is a schematic plan view illustrating a groove of another isolation structure included in a sliding motion display device according to an embodiment of the present disclosure.
FIG. 7 is a cross-sectional view of another display module of the sliding display apparatus shown in FIG. 1 in an area A.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The sliding display device comprises a main body part, a sliding part and a display module, and is mainly suitable for displaying the part of the display module, which is positioned on the main body part, in a normal state; when a large screen is needed for displaying, the sliding part can be pulled to enable the display module to be unfolded, so that a larger display area is obtained. In practical application, the display device that slides needs to switch under normality and large-size screen display state to make the portion of sliding extrude display module assembly, and extruded impetus is constantly changing, at this in-process, display module assembly's glue film can produce the creep under the extrusion, thereby make some fluid aggregation at the edge of main part, lead to the local thickening of display module assembly and produce deformation, lead to showing badly, and produce and lead to the visible demarcation trace of vision, influence the outward appearance.
At least one embodiment of the present disclosure provides a sliding display device, which includes a main body, a sliding portion, and a display module. The display module assembly is including being located the fixed area on the main part and being located the district that slides outside the main part, and the display module assembly still includes two at least structural layers and is used for laminating at least one glue film of two at least structural layers. The surface of at least one structural layer facing the glue layer is provided with an isolation structure, the isolation structure comprises at least one groove, and the groove is filled with the glue layer. At least part of the isolation structure is located in the slip region. The slippage part is arranged as follows: along with the sliding of the sliding part (moving towards the direction far away from the main body part), the display module can be unfolded; the display module can be contracted along with the movement of the sliding part to the main body part. For example, the opposite ends of the display module are fixed to the main body and the sliding portion, respectively. Under the condition that display device does not set up isolation structure sliding, along with the operation of sliding, the display module assembly can produce and warp repeatedly in the part in the district that slides, and the portion of sliding can make the partial glue film in district that slides produce the creep and gather in the juncture in district and fixed area sliding, and the glue film gathering can make the local thickening of display module assembly and produce the deformation, produces boundary trace (arch) on visual effect, not only reduces visual effect, and can lead to the display module assembly's that shows the malfunction. After sliding display device and setting up isolation structure, in the region that is provided with isolation structure, the glue film is filled in the recess, even if make display module assembly produce the deformation in the operation of sliding, the glue film is difficult to the wriggling under the constraint of recess to reduce or eliminate because of the local deformation (for example the thickening) scheduling problem of display module assembly that the operation of sliding leads to, display device's visual effect improves.
For example, in the embodiments of the present disclosure, "expand" and "contract" may be determined according to a display state of the display module, where the display state may be a current effective display area of the display module. For example, in the expansion process of the display module, the area of the display module for presenting the display image to the user is increased, so as to present large-screen display in visual effect; on the contrary, in the contraction process of the display module, the area of the display module for presenting the display image to the user is reduced, so that the screen miniaturization is presented in the visual effect.
Next, a structure of a slippage display device according to at least one embodiment of the present disclosure will be described with reference to the accompanying drawings. In addition, in these figures, a spatial rectangular coordinate system is established with reference to the surface of the main body for carrying the display module, so as to explain the positions of the elements in the sliding display device. In the rectangular space coordinate system, the X axis and the Y axis are parallel to the surface of the main body part for bearing the display module, the Z axis is vertical to the surface of the main body part for bearing the display module, the X axis is parallel to the sliding direction of the sliding part, and the Y axis and the Z axis are vertical to the sliding direction of the sliding part.
In the sliding display device according to at least one embodiment of the present disclosure, as shown in fig. 1 to 3, opposite ends of the display module 30 are fixed to the main body 10 and the sliding portion 20, respectively. The display module 30 includes a fixed area 31 and a sliding area 32, the part of the display module 30 located in the fixed area 31 is located on the main body 10, one end of the display module 30 is fixed on the sliding portion 20, so that the part of the display module 30 located in the sliding area 32 is supported by the sliding portion 20, and the display module 30 gradually expands in the process of dragging the sliding portion 20 along the sliding direction F. As shown in fig. 2 and fig. 3, the display module 30 includes two structural layers (e.g., the supporting layer 110 and the display panel 120 in the following embodiments) and a glue layer (e.g., the first glue layer 210 in the embodiments) for adhering the two structural layers. At least in the sliding region 32, a surface of one structural layer (e.g., the support layer 110) facing the glue layer (e.g., the first glue layer 210) is provided with an isolation structure 300, and the isolation structure 300 includes a plurality of grooves 310, and the glue layer fills the grooves 310.
In at least one embodiment of the present disclosure, on the premise that the sliding portion is ensured to be pulled so that the portion of the display module located in the sliding area can be unfolded, the connection relationship between the main body portion, the sliding portion and the display module is not further defined, and the design can be performed according to actual needs.
For example, in some embodiments of the present disclosure, as shown in fig. 1, the sliding part 20 of the sliding display device includes a rotating shaft 21 and a sliding plate 22, a rail (not shown) may be disposed in the main body 10, and the sliding plate 22 may be disposed in the rail. One end of the display module 30 is fixed on the sliding plate 22, and the portion of the display module 30 located in the sliding area 32 is wound on the rotating shaft 21 to realize bending. The portion of the display module 30 located in the fixed region 31 and the portion located in the sliding region 32 between the hinge 21 and the main body 10 are used as the actual display region of the display module 30 (i.e., the portion of the screen visible to the user or the portion of the display module 30 displaying the image) bounded by the hinge 21. In this way, in the process of dragging the rotating shaft 21 to be away from the main body portion 10, the sliding plate 22 also moves along the track in the direction away from the main body portion 10, so that the area of the actual display area of the display module 30 is enlarged, which is equivalent to increasing the area of the screen portion visible to the user, thereby realizing large-screen display.
In the embodiment of the disclosure, the portion of the display module located in the sliding region may "wind" around the rotating shaft, so that the extending direction of the display module changes at the rotating shaft but the display module does not completely cover the surface of the rotating shaft (in the case that the rotating shaft is a cylinder, the surface is a side surface, for example, the rotating shaft is a cylinder, and the side surface is a curved surface), and the display module is not fixed on the rotating shaft, so that, along with the sliding of the rotating shaft, the distances from the two ends of the display module respectively fixed on the main body portion and the sliding portion to the rotating shaft change. Illustratively, as shown in fig. 1, the surface of the rotating shaft 21 includes a first portion facing the main body 10 and a second portion facing away from the main body 10, when the rotating shaft 21 supports the display module 30, the second portion of the rotating shaft 21 contacts the display module 30, and the first portion of the rotating shaft 21 does not contact the display module 30. In addition, it should be noted that, during the process of expanding or contracting the display module 30, the rotating shaft 21 needs to rotate, and therefore, the first portion and the second portion are divided into regions of the surface of the rotating shaft 21 in a real-time state.
For example, in other embodiments of the present disclosure, referring to the sliding display device shown in fig. 1, one end of the display module 30 may be fixed on the rotating shaft 21, that is, the display module 30 is wound on the rotating shaft 21, and the sliding plate 22 may be transformed into a bracket structure to support the rotating shaft 21. In this way, in the process of dragging the rotating shaft 21 away from the main body portion 10, the rotating shaft 21 rotates, so that the portion of the display module 30 wound on the rotating shaft 21 is gradually unfolded, and the area of the actual display area of the display module 30 is enlarged.
In the embodiment of the present disclosure, the portion of the display module located in the sliding area is "wound" on the rotating shaft, so that the extending direction of the display module changes at the rotating shaft but the display module can completely cover the surface of the rotating shaft (in the case that the rotating shaft is a cylinder, the surface is a side surface, for example, the rotating shaft is a cylinder, the side surface is a curved surface), and one end of the display module fixed to the sliding portion is fixed to the rotating shaft, so that along with the sliding of the rotating shaft, the distance from one end of the display module fixed to the main body portion to the rotating shaft changes, and the distance from the other end of the display module fixed to the sliding portion (including the rotating shaft) to the rotating shaft does not change, so that after the display module is completely contracted, one circle and one circle of the portion of the display module located in the sliding area are wound on the rotating shaft to form a multi-circle winding structure; on the contrary, when the display module is unfolded, the part of the display module, which is coiled on the rotating shaft, is unfolded in a circle-by-circle mode until the number of turns is zero to form a completely-flattened structure. It should be noted that "completely flattening" is only for the macroscopic state of the display module, in which the area of the display module for presenting the display image to the user is the largest, and the upper limit of the screen size is presented in the visual effect, however, at the edge of the display module (for example, the edge connected to the rotating shaft), the display module may present a flattened (flat) shape, and may also maintain a certain curved surface shape, and the size of the portion of the curved surface shape is smaller than the overall size of the display module, so that the influence on the determination of the macroscopic shape of the display module is negligible.
In the embodiment of the disclosure, the main body portion may bear a portion of the display module to enable the display module to display an image to a user under contraction, and the sliding portion may enable the display module to present an area of the display image to the user to change in the sliding process. For example, in at least one embodiment of the present disclosure, the display module assembly includes a first end and a second end, the first end and the second end are located at two ends of the display module assembly along the display surface of the display module assembly, the first end is fixed on the main body portion, the second end is fixed on the sliding portion, the display module assembly further includes a non-display surface deviating from the display surface, and the main body portion and the sliding portion are used for fixing the portion of the display module assembly facing the non-display surface. Thus, when the display module is fixed on the main body part and the sliding part, the part of the main body part and the sliding part for fixing the display module is positioned on the back surface (non-display surface) of the display module, namely, the main body part and the sliding part can not shield the display image of the display module.
Illustratively, as shown in fig. 1, the display module 30 includes a display surface 35 and a non-display surface 36. The first end 33 and the second end 34 of the display module 30 are also located at two opposite ends of the display surface 35, that is, the first end 33 and the second end 34 are located at two opposite ends of the surface where the display module 30 is located, in the area where the first end 33 and the second end 34 of the display module 30 are located, one side surface (part of the non-display surface 36) of the display module 30 facing the main body 10 and the sliding part 30 is fixed on the main body 10 and the sliding part 30, and correspondingly, the part of the main body 10 and the sliding part 20 for fixing the display module 30 is located at the non-display surface 36 of the display module 30. For example, the main body 10 may include a supporting platform (a portion of the main body 10 shown in fig. 1) to support a portion of the display module 30 located in the fixing area 31, so that the portion of the display module 30 located in the fixing area 31 can also display an image to a user when the display module 30 is completely retracted, and the supporting platform of the main body 10 and the sliding plate 22 (which is a rotating shaft if the display module is fixed on the rotating shaft) are located at a back side of the display module 30, that is, facing the non-display surface 36 of the display module 30.
In the embodiment of the disclosure, the specific structure of the display module is not limited, and the display module can be designed according to the requirements of actual processes, and accordingly, the types of the structural layers included in the display module can be various. In the sliding display device, the display module needs the display panel to have a display function, and in addition, a support layer can be arranged to support the display panel, and in this case, the display panel is usually fixed on the support layer in a fitting manner. Next, the structure of the sliding display device and the arrangement mode of the isolation structure in at least one embodiment of the present disclosure are further described by taking an example that the display module includes a support layer and a display panel, and the isolation structure is used to prevent the adhesive layer for attaching the display panel and the support layer from creeping.
In the sliding display device provided by at least one embodiment of the present disclosure, the at least two structural layers include a supporting layer and a display panel, and the display module is fixed on the main body part and the sliding part through the supporting layer. The at least one glue layer comprises a first glue layer located between the support layer and the display panel. And an isolation structure is arranged on one side of at least one of the display panel and the supporting layer, which faces the first adhesive layer. Through setting up isolation structure in order to retrain first glue film, display panel can not produce the deformation because of the gluey gathering of glue film, promptly, display panel can not only local deformation too big and the damage appears to improve display panel's display effect. Illustratively, as shown in fig. 2, the first glue layer 210 is located between the support layer 110 and the display panel 120, and the support layer 110 is located on the backlight side (the side away from the display side) of the display panel 120. A surface of one side of the support layer 110 facing the display panel 120 is provided with an isolation structure 300 including a plurality of grooves 310.
For example, in an actual process, after the support layer 110 is provided, the surface of the support layer 110 is patterned, so that a part of the area of the support layer 110 is thinned, the non-thinned part forms a retaining wall, and accordingly, the area surrounded by the retaining wall forms the groove 310. For example, the patterning process may include photolithography (wet or dry etching may be selected), laser etching, imprinting (e.g., hot pressing), and the like.
In the embodiments of the present disclosure, the material of the support layer is not limited. For example, the material of the support layer may be an organic polymer material such as polymethyl methacrylate or polyimide, or may be a rigid material having a certain elasticity such as a thin steel plate.
For example, in the embodiment of the present disclosure, the manner in which the support layer is fixed to the main body portion and the sliding portion is not limited, and may be designed according to the needs of the actual process. For example, the fixing manner of the support layer on the main body part and the sliding part may include adhering, welding, clamping, and the like.
In the sliding display device provided by at least one embodiment of the present disclosure, a shape of an orthogonal projection of the groove on the surface where the display module is located includes at least one of a straight line shape and a curved line shape. The linear groove is convenient to process, and the manufacturing process of the display module can be simplified; the curved grooves can further reduce the moving and creeping amplitude of the glue layer in all directions. For example, as shown in fig. 3 and 4, the orthographic projection of the grooves 310 and 310a on the surface of the display module is linear; as shown in fig. 5 and 6, the orthographic projection of the grooves 310b, 310c on the surface of the display module is curved.
It should be noted that, in the embodiments of the present disclosure, the specific shape of the surface on which the display module is located varies with the state of the display module, and the surface on which the display module is located may be one main surface of the display module or a surface conformal with the main surface (for example, a neutral surface, which may be understood as an interface of a portion where the display module is pulled and pressed when bending, that is, the neutral surface does not stretch or shrink). For example, the main surface may be a contact surface of an adjacent structure layer (without considering the fluctuation of the shape of the contact surface caused by the grooves), for example, further, in the case that the display module includes a support layer and a display panel, the main surface may be a surface of the support layer facing away from the display panel, or a surface of the display panel facing away from the support layer; alternatively, in the case that the display module further includes a cover plate (see the relevant description in the following embodiments), the main surface may be a surface of the support layer facing away from the display panel, or a surface of the cover plate facing away from the display panel.
In the embodiment of the present disclosure, the overall extending direction of the groove may be set according to different design requirements. For example, the extending direction of the groove may be crosswise to the sliding direction, e.g. further perpendicular; alternatively, it may be parallel to the slip direction. The extending direction of the groove can be understood as the extending direction of the orthographic projection of the groove on the surface where the display module is located, and the extending direction of each position of the groove can be the direction of the tangent line of the orthographic projection of the position on the surface where the display module is located (the width of the groove is ignored to determine the tangent line, or the tangent line is determined based on the orthographic projection of the edge and the center line of the groove). In the following, grooves with different directions of extension are described by means of several specific embodiments.
For example, in the sliding display device provided by other embodiments of the present disclosure, the extending direction of the groove is parallel to the sliding direction of the sliding portion. So, be favorable to improving display module assembly along the tensile ability of sliding direction, be favorable to display module assembly further to design for tensile formula display module assembly to further increase display area. In a specific example, as shown in fig. 1 and 3, the groove 310 of the isolation structure 300 is linear, and the extending direction thereof is parallel to the sliding direction F of the sliding part 20. In another specific example, as shown in fig. 1 and 6, the groove 310c has a curved shape, and the overall extending direction thereof is substantially parallel to the sliding direction F of the sliding portion 20. In the case where the groove 310c has a curved shape, the extending direction of the whole can be regarded as the direction defined by the line connecting the two ends.
For example, in the sliding display device provided by some embodiments of the present disclosure, the extending direction of the groove is perpendicular to the sliding direction of the sliding portion. So, can avoid the glue film in the recess along the extending direction wriggling of recess to further reduce or eliminate because of the local deformation (for example thickening) scheduling problem of display module assembly that the operation of sliding leads to, improve display device's visual effect. In a specific example, as shown in fig. 1 and 4, the groove 310a of the isolation structure 300a is linear, and the extending direction thereof is perpendicular to the sliding direction F of the sliding part 20. In another specific example, as shown in fig. 1 and 5, the groove 310b has a curved shape, and the overall extending direction thereof is substantially perpendicular to the sliding direction F of the sliding section 20. In the case where the groove 310b has a curved shape, the extending direction of the whole can be regarded as the direction defined by the line connecting the two ends.
In the embodiment of the present disclosure, the groove may be a continuous groove structure, or may be selectively broken into multiple segments. The following description will be given by way of several specific examples.
For example, in the sliding display device provided in some embodiments of the present disclosure, as shown in fig. 3 and 4, the shape of the orthographic projection of the grooves 310 and 310a on the surface of the display module is a continuous straight line. So, can make 310, 310a have great design area to guarantee to set up glue film (for example first glue film) in recess 310, 310a and have great design area, guarantee the laminating dynamics between two structural layers (for example supporting layer and display panel), improve display module's intensity.
For example, in some embodiments of the present disclosure, the groove includes a plurality of sub-grooves spaced apart from each other and sequentially arranged along the extending direction. For the glue layer positioned in one groove, the glue layer is divided into a plurality of sections by the sub-grooves, so that the creep deformation can be performed only in a single sub-groove, the gathering capacity of the glue layer is further reduced, the problems of local deformation (such as thickening) and the like of the display module caused by sliding operation are further reduced or eliminated, and the visual effect of the display device is improved. Illustratively, as shown in fig. 5 and 6, each groove 310b, 310c includes a plurality of sub-grooves spaced apart from one another such that the glue in any one sub-groove does not creep into an adjacent sub-groove, thereby limiting the ability of the glue of the first layer of glue to flow in each groove 310b, 310 c.
In the embodiment of the disclosure, in the case that the groove is curved, the orthographic projection of the sub-groove on the surface where the display module is located may be in a V shape or an S shape. For example, as shown in fig. 5, the orthographic projection of the sub-groove on the surface where the display module is located is V-shaped; as shown in fig. 6, the orthographic projection of the sub-groove on the surface of the display module is S-shaped.
In the embodiment of the disclosure, under the condition that the extending direction and the sliding direction of the groove are substantially parallel, if the sub-groove is arranged in a V shape or an S shape, the isolation structure can greatly limit the flowing capacity of the glue layer (for example, the first glue layer), and simultaneously greatly improve the stretching capacity of the structural layer (for example, the support layer) provided with the groove, so that the display module can be further applied to the stretching display field to have a larger screen.
In the embodiment of the disclosure, as long as it is ensured that the isolation structure is arranged in the area where the glue layer of the display module is easy to creep, other areas of the display module can determine whether to arrange the isolation structure according to needs.
For example, in the sliding display device provided in some embodiments of the present disclosure, the isolation structure is disposed in both the fixed region and the sliding region. Therefore, the whole glue layer is restrained by the grooves of the isolation structures, so that the deformation resistance of the whole display module is improved, for example, even if the display module in the fixing area is pressed, impacted and the like, the glue layer is difficult to gather to cause the display module to deform. The deformation is a deformation that is not desired in design, that is, a poor deformation that is difficult to recover, for example, a deformation that causes a display module to be locally thick, thin, or the like.
For example, in the sliding display device provided in other embodiments of the present disclosure, all regions of the sliding region are provided with the isolation structure. So, only set up isolation structure in the district that slides, can increase the design area of the glue film of fixed area to improve the steadiness of display module assembly in the fixed area.
For example, in some embodiments of the present disclosure, the sliding region includes a first region far from the fixed region and a second region adjacent to the fixed region, and the isolation structure is located in the second region. Therefore, the isolation structure is only arranged in the second area, so that the design area of the whole isolation structure can be reduced, the design of the display module is simplified, and the manufacturing cost of the display module is reduced; in addition, the design area of the glue layer of the fixed area and the sliding area can be increased, so that the stability of the display module in the fixed area is improved. Illustratively, as shown in fig. 1 and 2, the isolation structure 300 is disposed only in the second region 302 of the glide region 32. The first glue layer 210 is in a continuous structure in the first region 301 of the sliding region 32 and in the portion of the fixing region 31.
In the embodiment of the present disclosure, the division of the second region of the slip region may be determined according to the range of the region where the rubber layer is prone to creep in actual use.
It should be noted that, in other embodiments of the present disclosure, in a case where the first glue layer between the support layer and the display panel is constrained by the isolation structure, the isolation structure may also be formed on a surface of the display panel facing the side of the support layer. For example, the display panel may be an organic light emitting diode display panel (OLED panel), and the OLED panel has a top emission mode and a bottom emission mode. Several ways of forming the isolation structure are described below for OLED panels with different emission modes.
For example, in one specific example of the present disclosure, a display panel has a bottom emission mode, and the display panel includes an array substrate, and a display array layer and an encapsulation layer sequentially on the array substrate. The display array layer comprises a light emitting device, light emitted by the display array layer penetrates through the array substrate, namely, one side where the array substrate of the display panel is located is the light emitting side of the display panel, and the packaging layer of the display panel faces the supporting layer. The encapsulation layer may be a multilayer structure, for example, the encapsulation layer may include two inorganic encapsulation layers and an organic encapsulation layer interposed between the two inorganic layers. The organic encapsulation layer has a relatively large thickness, and for example, the organic encapsulation layer may be imprinted to form a plurality of recesses after being formed or before being cured, and when the inorganic encapsulation layer is deposited on the organic encapsulation layer, the inorganic encapsulation layer may form a groove conformal to the recesses in the region of the recesses because the inorganic encapsulation layer has a very small thickness, thereby forming the isolation structures. Compared with the processes such as photoetching and laser etching, the imprinting process is simple to operate and low in cost, and the structural strength of the display panel cannot be reduced under the condition that the isolation structure is formed on the packaging layer, namely, the strength of the structural layer of the display module cannot be reduced due to the arrangement of the isolation structure.
For example, in another specific example of the present disclosure, a display panel has a top emission mode, the display panel includes an array substrate and a display array layer on the array substrate. The display array layer includes a light emitting device, and light emitted from the display array layer exits in a direction away from the array substrate, that is, the array substrate of the display panel faces the support layer. The array substrate includes a substrate, and the substrate needs to have a certain thickness requirement in the formation process of the array substrate. In an actual process, after the manufacturing process of the array substrate or the display panel is completed, the substrate is generally thinned; or the substrate is a multi-layer film structure, and partial film layers can be peeled off in the substrate, so that the substrate has smaller thickness, the thickness of the display panel is reduced, and the flexibility of the display panel is improved. For example, in the thinning process, the grooves of the isolation structure can be synchronously formed, so that the strength of the substrate is not affected by the design of the isolation structure, and the manufacturing process flow of the display panel can be simplified, thereby reducing the cost.
In the sliding display device provided by at least one embodiment of the present disclosure, the at least two structural layers may further include a touch panel, and the touch panel is located on a side of the display panel away from the support layer. The at least one adhesive layer further comprises a second adhesive layer positioned between the touch panel and the display panel. And an isolation structure is arranged on one side of at least one of the display panel and the touch panel, which faces the second adhesive layer. Through setting up isolation structure in order to retrain the second glue film, touch panel can not produce the deformation because of the gluey gathering of glue film, promptly, touch panel can not only local deformation too big lead to the touch-control not bad (for example touch-control electrode is broken etc.) that leads to, also can not lead to the precision of touch-control to reduce because of local deformation (for example fingerprint identification function is bad, for example discernment offset, unable discernment etc.) to improve touch panel's touch function. For example, as shown in fig. 7, the touch panel 130 is disposed on a side of the display panel 120 away from the support layer 110, and the second adhesive layer 220 is disposed in front of the touch panel 130 and the display panel 120. The surface of the display panel 120 facing the touch panel 130 forms the groove 320 of the isolation structure 300. At least a portion of the second glue layer 220 fills the recess 320.
For example, the packaging layer of the display panel faces the touch panel, that is, the touch panel is attached to the packaging layer of the display panel through the second adhesive layer, so that the groove of the isolation structure can be formed on the surface of the packaging layer. The specific process of this method can refer to the related descriptions in the foregoing embodiments, and is not described herein.
It should be noted that, in other embodiments of the present disclosure, the touch panel may be directly formed on the display panel. For example, the display panel may be used as a substrate, and the touch electrode (e.g., driving point electrode, sensing electrode, etc.) of the touch panel may be directly manufactured on the display panel, so that the second adhesive layer does not need to be disposed between the touch panel and the display panel.
In the sliding display device provided by at least one embodiment of the present disclosure, the at least two structural layers further include an optical film, and the optical film is located on one side of the touch panel, which is away from the display panel. The at least one adhesive layer further comprises a third adhesive layer positioned between the touch panel and the optical film. And an isolation structure is arranged on one side of at least one of the touch panel and the optical film, which faces the third adhesive layer. Through setting up isolation structure in order to retrain the third glue film, the optics diaphragm can not produce the deformation because of the gluey gathering of glue film to guarantee the degree of consistency of display module assembly light-emitting, improve visual effect. For example, as shown in fig. 7, the optical film 140 is disposed on a side of the touch panel 130 away from the display panel 120, and the third adhesive layer 230 is disposed in front of the touch panel 130 and the optical film 140. The side of the optical film 140 facing the touch panel 130 is provided with a groove 330 of the isolation structure 300. At least a portion of the third glue layer 230 fills the recess 330.
For example, the optical film 140 may include one or a combination of optical film layers such as a polarizer, a half-wave plate, an 1/4 wave plate, a light-gathering film, and a scattering film.
In the sliding display device provided by at least one embodiment of the present disclosure, the at least two structural layers further include a cover plate, and the cover plate is located on a side of the optical film 140 facing away from the display panel. The at least one adhesive layer further includes a fourth adhesive layer between the touch panel and the optical film 140. The side of at least one of the cover plate and the optical film 140 facing the fourth glue layer is provided with an isolation structure. Through setting up isolation structure in order to retrain the fourth glue film, the apron can not produce the deformation because of the gluey gathering of glue film to guarantee the degree of consistency of display module assembly light-emitting, improve visual effect. For example, as shown in fig. 7, a cover plate 150 is disposed on a side of the optical film 140 facing away from the touch panel 130, and a fourth adhesive layer 240 is disposed in front of the cover plate 150 and the optical film 140. The side of the cover plate 150 facing the optical film 140 is provided with a groove 340 of the isolation structure 300. At least a portion of the fourth glue layer 240 is filled in the groove 340.
In an embodiment of the present disclosure, the cover plate may include a double-layer structure, that is, the cover plate may include two sub-cover plates attached together, the two sub-cover plates may be referred to as an upper cover plate and a lower cover plate, the lower cover plate is located between the upper cover plate and the display panel, and a fifth glue layer may be disposed between the upper cover plate and the lower cover plate. For example, a groove of the isolation structure may be formed on a side surface of one of the upper cover plate and the lower cover plate facing the fifth glue layer. For example, a black matrix may be further disposed on the lower cover plate.
In embodiments of the present disclosure, the types of the glue layers (e.g., first, second, third, fourth glue layers) may be clear glues such as OCA cross, PSA glue, and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and the like that are within the spirit and principle of the present invention are included in the present invention.

Claims (10)

1. The sliding display device is characterized by comprising a main body part, a sliding part and a display module, wherein two opposite ends of the display module are respectively fixed on the main body part and the sliding part;
wherein the display module comprises a fixed area positioned on the main body part and a sliding area positioned outside the main body part, the display module further comprises at least two structural layers and at least one adhesive layer for attaching the at least two structural layers,
at least one structural layer facing the surface of the glue layer is provided with an isolation structure comprising at least one groove, the glue layer fills the groove, and
at least part of the isolation structure is located in the slip region.
2. Slippage display device according to claim 1,
the shape of the orthographic projection of the groove on the surface of the display module comprises at least one of a straight line shape and a curved line shape.
3. Slippage display device according to claim 2,
the extending direction of the groove is perpendicular to the sliding direction of the sliding part.
4. Slippage display device according to claim 2,
the extending direction of the groove is parallel to the sliding direction of the sliding part.
5. Sliding motion display device according to claim 4,
the groove comprises a plurality of mutually spaced sub-grooves which are sequentially arranged along the extending direction.
6. Sliding motion display device according to claim 5,
the shape of the orthographic projection of the sub-groove on the surface of the display module is V-shaped or S-shaped.
7. Slippage display device according to claim 1,
the display module assembly comprises a first end and a second end, the first end and the second end are located on the display surface of the display module assembly, the first end is fixed on the main body portion, the second end is fixed on the sliding portion, and
the display module further comprises a non-display surface deviated from the display surface, and the main body part and the sliding part are used for fixing the part of the display module to face the non-display surface.
8. The slippage display device of any one of claims 1-7,
the fixed zone and the slippage zone are both provided with the isolation structures; or
The isolation structures are arranged in all the areas of the slippage area; or
The slippage area comprises a first area far away from the fixed area and a second area connected with the fixed area, and the isolation structure is located in the second area.
9. Sliding motion display device according to claim 8,
the at least two structural layers comprise a supporting layer and a display panel, and the display module is fixed on the main body part and the sliding part through the supporting layer; and
the at least one glue layer comprises a first glue layer positioned between the support layer and the display panel;
wherein the isolation structure is arranged on one side of at least one of the display panel and the support layer, which faces the first glue layer.
10. Slippage display device according to claim 9,
the at least two structural layers further comprise a touch panel, the touch panel is positioned on one side of the display panel, which is far away from the supporting layer, the at least one adhesive layer further comprises a second adhesive layer positioned between the touch panel and the display panel, and the isolation structure is arranged on one side, which faces the second adhesive layer, of at least one of the display panel and the touch panel; and/or
The at least two structural layers further comprise optical films, the optical films are located on one sides, deviating from the display panel, of the touch panel, the at least one adhesive layer further comprises a third adhesive layer located between the touch panel and the optical films, and the touch panel and one side, facing the third adhesive layer, of at least one of the optical films are provided with the isolation structures.
CN202110567562.4A 2021-05-24 2021-05-24 Slippage display device Pending CN113257132A (en)

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Application publication date: 20210813