Display module and display device

Abstract

The utility model provides a display module and a display device, belongs to the technical field of display, and can solve the problems that a single-layer area of an existing display module is prone to being impacted and damaged, and the display effect is affected. The display module is provided with a display area, a binding area and a non-binding area, wherein the binding area and the non-binding area are arranged on one side of the display area; the display module comprises a first substrate and a second substrate which are oppositely arranged; the first substrate extends from the display area to the binding area and the non-binding area, and the second substrate is cut off at the edge of the display area; the display module further comprises a first polaroid located on the side, away from the second substrate, of the first substrate. The first polaroid extends from the display area to the non-binding area, and a protruding part is formed in the non-binding area; the edge of the protruding part is flush with the edge of the first substrate.

Description

Technical Field

[0001] The present disclosure belongs to the field of display technology, and particularly relates to a display module and a display device. Background Art

[0002] In the display module, a driving chip needs to be set on the array substrate to drive the pixel units in the display area to emit light. In order to avoid the driving chip, the color filter substrate cannot extend to the edge of the array substrate and be flush with it. The area in the display module where only the array substrate is set is called a single-layer area.

[0003] At present, due to the relatively weak structure and low strength of the single-layer area, as well as factors such as inadequate protection, the single-layer area is easily damaged when impacted, resulting in poor functionality and affecting the display effect of the display module. Utility Model Content

[0004] The present disclosure aims to solve at least one of the technical problems existing in the prior art, and provides a display module and a display device.

[0005] In a first aspect, an embodiment of the present disclosure provides a display module, comprising a display area and a binding area and a non-binding area arranged on one side of the display area; the display module comprises: a first substrate and a second substrate arranged opposite to each other; the first substrate extends from the display area to the binding area and the non-binding area, and the second substrate is terminated at an edge of the display area; the display module further comprises: a first polarizer located on a side of the first substrate away from the second substrate;

[0006] The first polarizer extends from the display area to the non-binding area, and a protrusion is formed in the non-binding area; the edge of the protrusion is flush with the edge of the first substrate.

[0007] In some embodiments, the display module further includes: a driving chip located on a side of the first substrate away from the first polarizer and disposed in the binding area;

[0008] The orthographic projection of the driving chip on the first substrate does not overlap with the orthographic projection of the protruding portion on the first substrate.

[0009] In some embodiments, the display mask set further includes: a backlight structure located on the side of the first polarizer away from the first substrate; the backlight structure includes: a back plate, and a light shielding glue located on the side of the back plate close to the first substrate;

[0010] The light-shielding adhesive is in contact with the protruding portion.

[0011] In some embodiments, the display module further includes: a second polarizer located on a side of the second substrate facing away from the first substrate;

[0012] The second polarizer is cut off at the edge of the display area.

[0013] In some embodiments, the display module further includes: a cover plate located on a side of the second polarizer away from the second substrate;

[0014] The cover plate and the second polarizer are bonded together via an optical adhesive layer.

[0015] In some embodiments, the backlight structure further comprises: a retaining wall connected to the back plate;

[0016] The retaining wall is in contact with the edge of the cover plate.

[0017] In some embodiments, the display module further includes: a flexible circuit board;

[0018] The flexible circuit board is bound and connected to the driving chip in the binding area, and is bent to a side of the back plate away from the first substrate.

[0019] In some embodiments, the display module further comprises: a structural adhesive layer;

[0020] The structural adhesive layer is disposed in the non-binding area and is located on a side of the first substrate away from the first polarizer.

[0021] In some embodiments, the material of the structural adhesive layer includes: silicone adhesive.

[0022] In a second aspect, an embodiment of the present disclosure provides a display device, which includes the display module provided in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the planar structure of an exemplary display module.

[0024] Figure 2 for Figure 1 A schematic diagram of the structure of each component in the display module is shown.

[0025] Figure 3 for Figure 1 The cross-sectional structure diagram of the display module along the AA' direction is shown.

[0026] Figure 4 A schematic diagram of the planar structure of a display module provided in an embodiment of the present disclosure.

[0027] Figure 5 for Figure 4 A schematic diagram of the structure of each component in the display module is shown.

[0028] Figure 6for Figure 4 The cross-sectional structure diagram of the display module along the BB' direction is shown. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] Figure 1 is a schematic diagram of a planar structure of an exemplary display module, Figure 2 for Figure 1 The schematic diagram of the structure of each component in the display module shown in FIG. Figure 3 for Figure 1 The cross-sectional structure diagram of the display module along the AA' direction is shown in FIG. Figures 1 to 3 As shown, the display module has a display area AA and a binding area BB1 and a non-binding area BB2 arranged on one side of the display area AA, and the display module includes: a first substrate 101 and a second substrate 102 arranged opposite to each other; the first substrate 101 extends from the display area AA to the binding area BB1 and the non-binding area BB2, and the second substrate 102 is terminated at the edge of the display area AA.

[0032] The first substrate 101 may be specifically an array substrate, on which a pixel driving circuit is arranged. The specific structure of the pixel driving circuit may refer to the structure of the pixel driving circuit in the related art, and will not be described in detail here. The second substrate 102 may be specifically a color filter substrate, on which a plurality of color filters are arranged, such as a red filter, a green filter and a blue-green filter, and a black matrix is ​​arranged between color filters of different colors to prevent crosstalk between light of different colors.

[0033] like Figures 1 to 3As shown, the display module further includes: a first polarizer 103, a driving chip 104, a backlight structure 105, a second polarizer 106, a cover plate 107, an optical adhesive layer 108, a flexible circuit board 109, a structural adhesive layer 110 and other structures.

[0034] It is understandable that a liquid crystal layer (not shown in the figure) is also provided between the first substrate 101 and the second substrate 102, and the driving chip 104 can be connected to the control module, such as a timing controller, through a flexible circuit board 109, and can provide a data voltage signal and a common voltage signal with a preset timing. The optical adhesive layer 108 and the structural adhesive layer 110 can play a role of bonding. The pixel driving circuit on the first substrate 101 can transmit the data voltage signal to the pixel electrode through the data line, and the common voltage signal is transmitted to the common electrode through the common signal line. The liquid crystal molecules in the liquid crystal layer are deflected under the action of the electric field between the pixel electrode and the common electrode, so as to transmit the light emitted by the backlight structure 105 under the action of the first polarizer 103 and the second polarizer 106, so as to achieve a display effect.

[0035] Since the driving chip 104 is disposed on the first substrate 101 , in order to avoid the driving chip 104 , the second substrate 102 cannot extend to the edge of the first substrate 101 to be flush with it. The area in the display module where only the first substrate 101 is disposed is called a single-layer area.

[0036] At present, due to the relatively weak structure and low strength of the single-layer area, as well as factors such as inadequate protection, the single-layer area is easily damaged when impacted, resulting in poor functionality and affecting the display effect of the display module.

[0037] In order to solve at least one of the above-mentioned technical problems, the embodiments of the present disclosure provide a display module and a display device. The display module and the display device provided by the embodiments of the present disclosure will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] In a first aspect, an embodiment of the present disclosure provides a display module, Figure 4 A schematic diagram of the planar structure of a display module provided in an embodiment of the present disclosure, Figure 5 for Figure 4 The schematic diagram of the structure of each component in the display module shown in FIG. Figure 6 for Figure 4 The cross-sectional structure diagram of the display module along the BB' direction is shown in FIG. Figures 4 to 6As shown, the display module has a display area AA and a binding area BB1 and a non-binding area BB2 arranged on one side of the display area AA; the display module includes: a first substrate 101 and a second substrate 102 arranged opposite to each other; the first substrate 101 extends from the display area AA to the binding area BB1 and the non-binding area BB2, and the second substrate 102 is terminated at the edge of the display area AA; the display module also includes: a first polarizer 103 located on the side of the first substrate 101 away from the second substrate 102; the first polarizer 103 extends from the display area AA to the non-binding area BB2, and a protrusion 1031 is formed in the non-binding area BB2; the edge of the protrusion 1031 is flush with the edge of the first substrate 101.

[0039] The first polarizer 103 can be made of materials such as polyvinyl alcohol film (PVA) and triacetate cellulose film (TAC), which can polarize the light generated by the light source to form linear polarized light so that the light can pass through the liquid crystal layer (not shown in the figure) between the first substrate 101 and the second substrate 102.

[0040] The first polarizer 103 can extend from the display area AA to the non-binding area BB2, and form a protrusion 1031 in the non-binding area BB2. The protrusion 1031 is formed because the driver chip 104 at the binding area BB1 needs to be avoided (which will be described later). The first polarizer 103 needs to form a gap in the binding area BB1, and the protrusions 1031 are formed on both sides of the gap. The edge of the protrusion 1031 can be flush with the edge of the first substrate 101, so that a larger support area is formed between the two.

[0041] In the display module provided by the embodiment of the present disclosure, the first polarizer 103 extends from the display area AA to the non-binding area BB2, and a protrusion 1031 is formed in the non-binding area BB2. In the single-layer area (i.e., the non-binding area BB2), the protrusion 1031 can effectively support the first substrate 101 and protect the first substrate 101, so as to avoid damage to the single-layer area when the first substrate 101 is subjected to external impact, thereby improving the display effect and service life of the display module, thereby improving the user's use effect. In some embodiments, such as Figures 4 to 6 As shown, the display module also includes: a driving chip 104 located on the side of the first substrate 101 away from the first polarizer 103 and arranged in the binding area BB1; the orthographic projection of the driving chip 104 on the first substrate 101 does not overlap with the orthographic projection of the protrusion 1031 on the first substrate 101.

[0042] When the driver chip 104 is bound and connected, high temperature is easily generated due to process reasons. The orthographic projection of the driver chip 104 on the first substrate 101 and the orthographic projection of the protrusion 1031 on the first substrate 101 do not overlap, which can prevent the high temperature generated by the driver chip 104 during the binding connection process from scalding the first polarizer 103 and damaging the first polarizer 103, thereby ensuring that the protrusion 1031 of the first polarizer 103 supports the first substrate 101 in the single-layer area.

[0043] In some embodiments, Figures 4 to 6 As shown, the display mask set also includes: a backlight structure 105 located on the side of the first polarizer 103 away from the first substrate 101; the backlight structure 105 includes: a back plate 1051, and a light shielding glue 1052 located on the side of the back plate 1051 close to the first substrate 101; the light shielding glue 1052 is bonded to the protrusion 1031.

[0044] The backlight structure 105 can provide backlight, wherein the backlight structure 105 includes a back plate 1051 and a light shielding glue 1052 located on the side of the back plate 1051 close to the first substrate 101. The back plate 1051 can be made of a metal material with a large elastic modulus, such as stainless steel, and can support structures such as a light source (not shown in the figure) and a light guide plate (not shown in the figure). The light shielding glue 1052 can be attached to the back plate 1051 to prevent light generated by the light source from leaking out of the back plate 1051 at once, causing light leakage. The light shielding glue 1051 is generally made of black tape or the like.

[0045] Due to the presence of the protrusion 1031, the gap between the first substrate 101 and the light shielding glue 1052 can be filled. The protrusion 1031 can be directly attached to the light shielding glue 1052 without using a gasket or other structure for filling, which can reduce process steps and save preparation costs.

[0046] In some embodiments, Figures 4 to 6 As shown, the display module further includes: a second polarizer 106 located on the side of the second substrate 102 away from the first substrate 101; the second polarizer 106 is cut off at the edge of the display area AA.

[0047] The second polarizer 106 can be made of materials such as polyvinyl alcohol (PVA) film and triacetate cellulose (TAC) film, and can polarize the light passing through the liquid crystal layer and change its polarization direction so that the light is irradiated to the second substrate 102 .

[0048] The second polarizer 106 can be cut off at the edge of the display area AA to avoid the driver chip 104 on the first substrate 101 to avoid damage to the driver chip and to prevent the high temperature generated by the driver chip 104 during the binding process from scalding the second polarizer 106 and affecting the display effect.

[0049] In some embodiments, Figures 4 to 6 As shown, the display module further includes: a cover plate 107 located on the side of the second polarizer 106 away from the second substrate 102 ; the cover plate 107 and the second polarizer 106 are bonded together via an optical adhesive layer 108 .

[0050] The cover plate 107 can be made of a relatively strong material such as glass. The cover plate 107 can protect the second polarizer 106, the second substrate 102, the first substrate 101, the first polarizer 103 and other film layers thereunder to avoid damage to the film layers caused by impact during use, thereby improving the user experience.

[0051] The cover plate 107 and the second polarizer 106 may be bonded together by an optical adhesive layer 108 . The optical adhesive layer 108 has high transparency and can avoid blocking the light of the light-transmitting second polarizer 106 , thereby improving the display effect.

[0052] In some embodiments, Figures 4 to 6 As shown, the backlight structure 105 further includes: a retaining wall 1053 connected to the back plate 1051 ; the retaining wall 1053 is in contact with the edge of the cover plate 107 .

[0053] A bending structure may be formed between the back plate 1051 and the retaining wall 1053 to provide a standing space for structures such as the light source and the light guide plate, and to protect them. At the same time, the retaining wall 1053 may protect the side of the first substrate 101 to prevent the side of the first substrate 101 from being impacted and damaged by noise.

[0054] In some embodiments, Figures 4 to 6 As shown, the display module further includes: a flexible circuit board 109 ; the flexible circuit board 109 is bound and connected to the driving chip 104 in the binding area BB1 , and is bent to a side of the back plate 1051 away from the first substrate 101 .

[0055] The flexible circuit board 109 can be bound and connected to the driving chip 104, so that the driving chip 104 is connected to a control module, such as a timing controller, and can provide a data voltage signal and a common voltage signal with a preset timing.

[0056] The flexible circuit board 109 can be bent to the side of the back plate 1051 away from the first substrate 101, so as to prevent the flexible circuit board 109 and the structure connected thereto from occupying the frame of the display module, thereby facilitating the narrow frame design of the display module, thereby increasing the display area and improving the screen-to-body ratio of the display module.

[0057] In some embodiments, Figures 4 to 6 As shown, the display module further includes: a structural adhesive layer 110 ; the structural adhesive layer 110 is disposed in the non-binding area BB2 and is located on a side of the first substrate 101 away from the first polarizer 103 .

[0058] The structural adhesive layer 110 can bond the first substrate 101 to the cover plate 107 and other structures. Since the bonding position does not need to be light-transmissive, the structural adhesive layer 110 can be made of non-transparent materials, such as silicone adhesive, etc., which can bond the first substrate 101 while further effectively protecting the first substrate 101 in the single-layer area to avoid damage to the single-layer area when impacted, resulting in poor functionality and affecting the display effect of the display module.

[0059] In the second aspect, the present disclosure provides a display device, which includes a display module as provided in any of the above embodiments. The display device can be any large-size display product or component with a display function, such as a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, etc. The embodiments of the present disclosure do not limit this. Its implementation principle and technical effect are the same as the implementation principle and technical effect of the backplane provided in any of the above embodiments, and will not be repeated here.

[0060] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A display module, comprising a display area and a binding area and a non-binding area arranged on one side of the display area; characterized in that: The display module comprises: a first substrate and a second substrate arranged opposite to each other; the first substrate extends from the display area to the binding area and the non-binding area, and the second substrate is terminated at the edge of the display area; the display module further comprises: a first polarizer located on a side of the first substrate away from the second substrate; The first polarizer extends from the display area to the non-binding area, and a protrusion is formed in the non-binding area; the edge of the protrusion is flush with the edge of the first substrate.

2. The display module according to claim 1, characterized in that: The display module further includes: a driving chip located on a side of the first substrate away from the first polarizer and arranged in the binding area; The orthographic projection of the driving chip on the first substrate does not overlap with the orthographic projection of the protruding portion on the first substrate.

3. The display module according to claim 1, characterized in that: The display module further includes: a backlight structure located on the side of the first polarizer away from the first substrate; the backlight structure includes: a back plate, and a light shielding glue located on the side of the back plate close to the first substrate; The light-shielding adhesive is in contact with the protruding portion.

4. The display module according to claim 3, characterized in that: The display module further includes: a second polarizer located on a side of the second substrate away from the first substrate; The second polarizer is cut off at the edge of the display area.

5. The display module according to claim 4, characterized in that: The display module further includes: a cover plate located on a side of the second polarizer away from the second substrate; The cover plate and the second polarizer are bonded together via an optical adhesive layer.

6. The display module according to claim 5, characterized in that: The backlight structure further comprises: a retaining wall connected to the back plate; The retaining wall is in contact with the edge of the cover plate.

7. The display module according to claim 6, characterized in that: The display module further includes: a flexible circuit board; The flexible circuit board is bound and connected to the driving chip in the binding area, and is bent to a side of the back plate away from the first substrate.

8. The display module according to claim 1, characterized in that: The display module further comprises: a structural adhesive layer; The structural adhesive layer is disposed in the non-binding area and is located on a side of the first substrate away from the first polarizer.

9. The display module according to claim 8, characterized in that: The material of the structural adhesive layer includes: silicone adhesive.

10. A display device, characterized in that: The display device comprises the display module according to any one of claims 1 to 9.

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