Display module and display device

Abstract

The embodiment of the utility model provides a display module and a display device, relates to the technical field of display, and aims to solve the problem that a cover plate supporting piece damages a chip on film in the mounting process. The display module comprises a frame body, a display panel, a cover plate, a chip on film and a cover plate supporting piece, wherein the display panel is fixed on the frame body; the cover plate is arranged on the display panel, and the cover plate is provided with an extension part exceeding the display panel; one end of the chip-on-film is electrically connected with the display panel, and one end, far away from the display panel, of the chip-on-film is configured to be electrically connected with the driving circuit board; the cover plate supporting piece is arranged on the side, close to the display panel, of the cover plate and abuts against the extension part, the cover plate supporting piece is connected with the frame body, and an avoiding gap is formed between the cover plate supporting piece and the chip on film.

Description

Technical Field

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

[0002] The display module usually uses a chip on film (COF) to wrap a driving circuit board connected to the display panel around the back of the display panel for fixing, thereby achieving a narrow frame of the display module.

[0003] In the related art, after the COF is wound and fixed, a cover plate support is required to support the cover plate above the display panel. The cover plate support will generally interfere with the COF after installation. However, since the end of the cover plate support close to the display panel usually protrudes and faces the display panel, it is easy for the operator to use too much force during installation and cause damage to the COF, affecting the working stability of the COF and the display panel, and even causing it to be scrapped. Utility Model Content

[0004] The embodiments of the present application provide a display module and a display device, which are used to solve the problem in the related art that the cover plate support member conflicts with the chip-on-film, causing the cover plate support member to damage the chip-on-film during installation.

[0005] An embodiment of the present application provides a display module, comprising: a frame, a display panel, a cover plate, a chip-on-cover film and a cover plate support; the display panel is fixed on the frame; the cover plate is arranged on the display panel, and the cover plate has an extension portion extending beyond the display panel; one end of the chip-on-cover film is electrically connected to the display panel, and one end of the chip-on-cover film away from the display panel is configured to be electrically connected to a driving circuit board; the cover plate support abuts against the extension portion and is used to support the cover plate, the cover plate support is connected to the frame, and an avoidance gap is provided between the cover plate support and the chip-on-cover film.

[0006] In some embodiments, the avoidance gap includes a avoidance spacing in a first direction, the first direction is parallel to a display surface of the display panel, and the avoidance gap is greater than or equal to 3 mm.

[0007] In some embodiments, the avoidance distance is greater than or equal to 5 mm and less than or equal to 8 mm.

[0008] In some embodiments, the cover support member includes: a main body portion and a first extension portion located at one end of the main body portion, wherein the first extension portion is parallel to the extension portion and abuts against the extension portion.

[0009] In some embodiments, the first extending portion extends in a direction away from the display panel; or the first extending portion extends in a direction close to the display panel.

[0010] In some embodiments, the first extension portion extends in a direction close to the display panel, and the first extension portion includes a free end, the free end is located at an end of the first extension portion away from the main body, and a surface of the free end is an arc surface.

[0011] In some embodiments, the cover support further includes a second extension portion located at an end of the main body away from the first extension portion, the second extension portion is connected to the frame, and the second extension portion extends in a direction away from the display panel.

[0012] In some embodiments, a first opening is provided on the second extension portion, a second opening is provided on the frame body at a position corresponding to the first opening, and the second extension portion is connected to the frame body via a connector passing through the first opening and the second opening.

[0013] In some embodiments, the cover support is a tempered glass support.

[0014] An embodiment of the present application further provides a display device, which includes the display module described in any of the above embodiments.

[0015] For the display module provided in the embodiment of the present application, since there is an avoidance gap between the cover plate support and the chip-on-chip film, during the installation process of the cover plate support, the avoidance gap can provide a certain degree of buffer for the operator, thereby effectively preventing the cover plate support from causing damage to the chip-on-chip film during the installation process, thereby ensuring the stable operation of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 is a cross-sectional structural diagram of a display module provided in some embodiments of the present application;

[0018] Figure 2 It is a cross-sectional structural diagram of a cover support provided in some embodiments of the present application.

[0019] Description of main component symbols:

[0020] 10. Frame; 11. Display panel; 12. Cover plate; 13. Chip-on-film; 14. Cover plate support; 15. Driver circuit board; 16. Transparent adhesive; 17. Touch PCB board; 18. Glue frame; 100. Display module; 101. Back plate; 102. Frame; 103. Connecting bracket; 121. Extension part; 131. First end; 132. Second end; 141. Main body; 142. First extension part; 143. Second extension part; 201. First adhesive; 202. Connector; 203. Filter strip; 204. Foam; 1421. First surface; 1422. Second surface; 1423. Third surface; 1430. First opening. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0024] The use of "suitable for" or "configured to" in this application is meant to be open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps. In addition, the use of "based on" is meant to be open and inclusive, because the process, step, calculation or other action "based on" one or more stated conditions or values ​​can be based on additional conditions or values ​​beyond the stated values ​​in practice.

[0025] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0026] In the related art, after the driver circuit board is wound to the back of the display panel by the chip-on-film and the driver circuit board is fixed, a cover plate support is required to support the cover plate above the display panel. After installation, the cover plate support generally conflicts with the chip-on-film. However, the cover plate support usually protrudes toward the display panel at one end close to the display panel, which can easily cause damage to the chip-on-film due to excessive force applied by the operator during installation, affecting the working stability of the chip-on-film and the display panel, and even causing it to be scrapped.

[0027] Based on this, the present disclosure provides a display module, such as Figure 1 As shown, the display module 100 includes: a frame 10 , a display panel 11 , a cover plate 12 , a COF 13 and a cover plate support 14 .

[0028] The display panel 11 is fixed on the frame 10, the cover plate 12 is disposed on the display panel 11, and the cover plate 12 has an extension portion 121 extending beyond the display panel 11. That is, the orthographic projection of the display panel 11 on the cover plate 12 does not overlap with the extension portion 121.

[0029] One end of the COF 13 is electrically connected to the display panel 11, and the other end of the COF 13 away from the display panel 11 is configured to be electrically connected to the driving circuit board 15. Exemplarily, the COF 13 has a first end 131 and a second end 132, the first end 131 is electrically connected to the display panel 11, and the second end 132 is configured to be electrically connected to the driving circuit board 15, so that data can be transmitted between the display panel 11 and the driving circuit board 15 through the COF 13.

[0030] The cover plate support member 14 is disposed on a side of the cover plate 12 close to the display panel 11, and the cover plate support member 14 abuts against the extension portion 121 and is used to support the cover plate 12, and the cover plate support member 14 is connected to the frame 10. In this way, the cover plate support member 14 can form a stable support for the cover plate 12, thereby preventing the cover plate 12 from being easily dented after being subjected to force.

[0031] There is an avoidance gap between the cover support 14 and the chip-on-cover film 13. During the installation of the cover support 14, the avoidance gap can provide a certain degree of buffer for the operator, thereby effectively preventing the cover support 14 from causing damage to the chip-on-cover film 13 during the installation process, thereby ensuring the stable display operation of the display panel 11.

[0032] In some embodiments, the avoidance gap includes a avoidance distance F in a first direction, and the first direction is parallel to the display plane of the display panel 11. Exemplarily, the first direction may be a horizontal direction, which is perpendicular to the thickness direction of the display panel 11.

[0033] The avoidance distance F is greater than or equal to 3 mm. This arrangement can provide a certain safety distance for the operator during installation, thereby effectively preventing the cover support 14 from causing damage to the chip-on-film 13 during the installation process.

[0034] In a specific implementation process, the extension portion 121 of the cover plate 12 can be set to a relatively large length, so as to ensure that the above-mentioned avoidance gap exists between the cover plate support 14 and the chip-on-film 13 .

[0035] There is an avoidance distance F between the cover support 14 and the COF 13 in the first direction, that is, there is an avoidance distance F between each portion of the cover support 14 and a corresponding portion of the COF 13 in the first direction.

[0036] In some embodiments, the avoidance distance F is greater than or equal to 5 mm and less than or equal to 8 mm. This arrangement helps to further provide a sufficient safety distance for the chip-on-chip film 13 to prevent the installation of the cover support 14 from causing damage to the chip-on-chip film 13. At the same time, it can also provide a certain heat dissipation space for the chip-on-chip film 13 to improve the heat dissipation efficiency of the chip-on-chip film 13. On the other hand, the avoidance distance F also helps to control the overall length of the display module 100 to prevent the display module 100 from being too long and affecting its user experience.

[0037] Exemplarily, the avoidance distance F may be 5 mm, 6 mm, 7 mm or 8 mm.

[0038] The clearance distances F between various parts of the cover support 14 and corresponding parts of the chip-on-film 13 in the first direction may be equal or unequal. When the clearance distances F between various parts of the cover support 14 and corresponding parts of the chip-on-film 13 are unequal, it is necessary to ensure that the minimum clearance distance F between the cover support 14 and the chip-on-film 13 is consistent with the clearance distance F described in the above embodiment.

[0039] Exemplarily, when the clearance distance F between the first end 131 of the COF 13 and the corresponding portion of the cover support 14 in the first direction is the minimum clearance distance F, the clearance distance F is greater than or equal to 3 mm.

[0040] In some examples, the avoidance gap also includes a minimum spacing between the cover support 14 and the chip-on-film 13, and the minimum spacing is greater than or equal to 3 mm. The minimum spacing is the shortest distance between the cover support 14 and the chip-on-film 13. This arrangement can effectively prevent the cover support 14 from causing damage to the chip-on-film 13 during installation.

[0041] In some embodiments, the display module 100 further includes a transparent adhesive 16, and the display panel 11 and the cover plate 12 are bonded together by the transparent adhesive 16. In this way, the display panel 11 and the cover plate 12 can form a fully laminated integrated module and be installed as a whole, which can reduce the assembly steps of the display module 100 and improve the assembly efficiency of the display module 100.

[0042] It is worth noting that the display panel 11 and the first end 131 of the chip-on-cover film 13 can be electrically connected before the display panel 11 and the cover plate 12 are bonded, thereby ensuring the connection stability between the display panel 11 and the chip-on-cover film 13 on the one hand, and allowing the display panel 11, the chip-on-cover film 13 and the cover plate 12 to form a whole on the other hand, thereby improving the assembly efficiency of the display module 100.

[0043] In some embodiments, the cover plate support 14 is a tempered glass support. Tempered glass has the characteristics of high strength, high safety and high thermal stability, which can ensure the support strength for the cover plate 12 and has a long service life.

[0044] In some embodiments, in combination Figure 1 and Figure 2 As shown, the cover support 14 includes a main body 141 and a first extension portion 142 located at one end of the main body 141 . The first extension portion 142 is parallel to the extension portion 121 of the cover 12 and abuts against the extension portion 121 .

[0045] In this way, a larger bonding surface can be provided between the first extension portion 142 and the extension portion 121, which is beneficial to improve the bonding stability between the cover plate support member 14 and the extension portion 121. In addition, the connection surface between the first extension portion 142 and the extension portion 121 is increased, which is also beneficial to improve the support stability of the cover plate support member 14 for the cover plate 12.

[0046] In some examples, such as Figure 1As shown, a first adhesive 201 is provided between the first extension portion 142 and the extension portion 121, and the first extension portion 142 and the extension portion 121 are connected by the first adhesive 201. Exemplarily, the first adhesive 201 is a foam double-sided adhesive.

[0047] In some examples, such as Figure 2 As shown, the first extension portion 142 includes a first surface 1421 , which is located on one side of the first extension portion 142 close to the extension portion 121 , and is parallel to the bottom surface of the extension portion 121 , which helps to ensure stable bonding between the first extension portion 142 and the extension portion 121 .

[0048] In some examples, the extension direction of the main body 141 is arranged to intersect with the extension direction of the first extension portion 142. Figure 1 and Figure 2 As shown, the extension direction of the main body portion 141 and the extension direction of the first extension portion 142 may be perpendicular to each other.

[0049] In some embodiments, the extension direction of the first extension portion 142 is towards the direction away from the display panel 11 (or the first end 131 of the chip-on-cover film 13), that is, the first extension portion 142 extends in the direction away from the display panel 11 (or the first end 131). This can prevent the free end of the first extension portion 142 (that is, the end of the first extension portion 142 away from its connection to the main body portion 141) from puncturing the chip-on-cover film 13, thereby facilitating the stability of the chip-on-cover film 13.

[0050] In this case, there is a clearance distance F between the connection end of the first extension portion 142 (ie, the end of the first extension portion 142 connected to the main body portion 141 ) and the first end 131 of the COF 13 .

[0051] In other embodiments, the extension direction of the first extension portion 142 is toward the direction close to the display panel 11 (or the first end 131 of the chip-on-cover film 13), that is, the first extension portion 142 extends in the direction close to the display panel 11 (or the first end 131), so that the main body 141 can be ensured to be flush with the extension portion 121 of the cover plate 12 (that is, the surface of the main body 141 away from the side of the chip-on-cover film 13 and the edge surface of the extension portion 121 are located in the same plane), which is beneficial to the division of the display module 100 area, and is also beneficial to the subsequent installation of other components.

[0052] In this case, there is a clearance distance F between the free end of the first extension portion 142 and the first end 131 of the COF 13 , so that the free end of the first extension portion 142 can avoid puncturing the first end 131 of the COF 13 during the installation process.

[0053] In some examples, such as Figure 2 As shown, the first extension portion 142 includes a free end, and the surface of the free end is an arc surface. The arc surface can effectively prevent the risk of the first extension portion 142 causing puncture to the chip-on-film 13 when it touches the chip-on-film 13 due to negligence during the installation process.

[0054] Exemplarily, the first extension portion 142 includes a first surface 1421 , a second surface 1422 , and a third surface 1423 that are sequentially connected. The first surface 1421 and the third surface 1423 are parallel to each other, and the second surface 1422 is the arc surface mentioned above.

[0055] In some embodiments, Figure 1 and Figure 2 As shown, the cover support 14 also includes a second extension portion 143 located at one end of the main body 141 away from the first extension portion 142, the second extension portion 143 is connected to the frame 10, and the extension direction of the second extension portion 143 is toward the direction away from the display panel 11 (or the first end 131 of the chip-on-film 13).

[0056] Since the second extension portion 143 extends in a direction away from the first end 131 , it is possible to prevent the second extension portion 143 from contacting the COF 13 and affecting the stability of the COF 13 .

[0057] In some examples, an extending direction of the second extending portion 143 is parallel to an extending direction of the first extending portion 142 .

[0058] In some embodiments, Figure 1 and Figure 2 As shown, the second extension portion 143 is provided with a first opening 1430 , and the frame body 10 is provided with a second opening at a position corresponding to the first opening 1430 . The second extension portion 143 is connected to the frame body 10 via a connector 202 that passes through the first opening 1430 and the second opening.

[0059] This arrangement facilitates the maintenance of the display module 100 by installing or removing the connector 202. Since the maintenance position is far away from the COF 13, the driver circuit board 15 and the display panel 11, damage to the electronic components during maintenance of the display module 100 can be avoided.

[0060] Exemplarily, the connection member 202 may be a screw.

[0061] In some examples, the frame 10 includes a back plate 101, a frame 102, and a connection bracket 103. The connection bracket 103 is connected to the back plate 101 and the frame 102 respectively.

[0062] Exemplarily, the second opening includes a first sub-opening located on the frame 102 and a second sub-opening located on the connecting bracket 103, and the frame 102, the cover support 14 and the connecting bracket 103 are connected by a connecting member 202 that passes through the second sub-opening, the first opening and the first sub-opening in sequence.

[0063] Regarding the frame 102 , a touch PCB board 17 may be disposed in its inner cavity. The touch PCB board 17 is used to implement the touch function of the display device corresponding to the display module.

[0064] In some examples, a filter bar 203 is further provided between the frame 102 and the cover plate 12 , and the filter bar 203 is embedded in a slot in the frame 102 to be fixed in the frame 102 .

[0065] In some embodiments, the display module 100 further includes a plastic frame 18, and the plastic frame 18 has a snap-in groove, and one end of the back plate 101 is snapped into the snap-in groove to achieve the connection between the plastic frame 18 and the back plate 101. The plastic frame 18 has a fixing surface on one side close to the display panel 11, and the plastic frame 18 and the display panel 11 are fixed by the foam 204 located on the fixing surface, so that the display panel 11 is fixed to the back plate 101.

[0066] Some embodiments of the present disclosure further provide a display device, which includes the display module 100 described in any of the above embodiments.

[0067] Since the display device includes the display module 100 , it has all the technical effects possessed by the display module, which will not be described in detail here.

[0068] The utility model names provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display module, characterized in that: include: Frame; A display panel, fixed on the frame; A cover plate, disposed on the display panel, and having an extension portion extending beyond the display panel; A chip-on-film, one end of the chip-on-film being electrically connected to the display panel, and one end of the chip-on-film being away from the display panel being configured to be electrically connected to a driving circuit board; and A cover plate support member is in contact with the extension portion and is used to support the cover plate. The cover plate support member is connected to the frame body, and an avoidance gap is provided between the cover plate support member and the chip-on-film.

2. The display module according to claim 1, characterized in that: The avoidance gap includes a avoidance distance in a first direction, the first direction is parallel to a display surface of the display panel, and the avoidance distance is greater than or equal to 3 mm.

3. The display module according to claim 2, characterized in that: The avoidance distance is greater than or equal to 5 mm and less than or equal to 8 mm.

4. The display module according to any one of claims 1 to 3, characterized in that: The cover support member includes a main body and a first extension portion located at one end of the main body, wherein the first extension portion is parallel to the extension portion and abuts against the extension portion.

5. The display module according to claim 4, characterized in that: The first extending portion extends in a direction away from the display panel; or, The first extending portion extends in a direction approaching the display panel.

6. The display module according to claim 5, characterized in that: The first extension portion extends in a direction close to the display panel. The first extension portion includes a free end. The free end is located at an end of the first extension portion away from the main body, and a surface of the free end is an arc surface.

7. The display module according to claim 4, characterized in that: The cover support also includes a second extension portion located at an end of the main body away from the first extension portion, the second extension portion is connected to the frame, and the second extension portion extends in a direction away from the display panel.

8. The display module according to claim 7, characterized in that: The second extension portion is provided with a first opening, the frame body is provided with a second opening at a position corresponding to the first opening, and the second extension portion is connected to the frame body via a connecting piece passing through the first opening and the second opening.

9. The display module according to any one of claims 1 to 3, characterized in that: The cover plate support is a tempered glass support.

10. A display device, characterized in that: Comprising a display module as described in any one of claims 1-9.

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