Display module and display apparatus

Abstract

A display module and a display apparatus. The display module comprises: a frame, a display panel, a cover plate, a chip on film, and a cover plate supporting member; the display panel is fixed to the frame; the cover plate is arranged on the display panel and is provided with an extension part extending out of the display panel; one end of the chip on film is electrically connected to the display panel; and the cover plate supporting member is arranged on the side of the cover plate close to the display panel and abuts against the extension part, the cover plate supporting member is connected to the frame, and a clearance gap is formed between the cover plate supporting member and the chip on film.

Description

Display module and display device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 8, 2024, with application number 202420047654.9 and utility model name “Display Module and Display Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of display technology, and in particular to a display module and a display device. Background Art

[0003] A display module generally utilizes a chip on film (COF) to wrap a driver circuit board connected to a display panel around the back of the display panel for fixation, thereby achieving a narrow frame of the display module.

[0004] 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 generally interferes with the COF after installation. Technical issues

[0005] Since the cover support member usually protrudes toward the display panel at one end close to the display panel, it is easy for the operator to damage the cover film by applying too much force during installation, affecting the working stability of the cover film and the display panel, and even causing them to be scrapped. Technical Solutions

[0006] In a first aspect, an embodiment of the present application provides a display module, comprising: a frame, a display panel, a cover plate, a chip-on-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-film is electrically connected to the display panel, and the end of the chip-on-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-film.

[0007] In a second aspect, the present application further provides a display device comprising a display module. The display module comprises: a frame, a display panel, a cover plate, a COF, and a cover plate support; the display panel is fixed to the frame; the cover plate is disposed on the display panel and has an extension extending beyond the display panel; one end of the COF is electrically connected to the display panel, and the end of the COF away from the display panel is configured to be electrically connected to a driver circuit board; the cover plate support abuts the extension and is used to support the cover plate; the cover plate support is connected to the frame, and a clearance is provided between the cover plate support and the COF. Beneficial effects

[0008] 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 cover 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 cover chip film during the installation process, thereby ensuring the stable operation of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] FIG1 is a cross-sectional structural diagram of a display module provided in some embodiments of the present application;

[0010] FIG2 is a cross-sectional structural diagram of a cover plate support member provided in some embodiments of the present application.

[0011] Explanation of the main component symbols: 10, frame; 11, display panel; 12, cover plate; 13, cover film; 14, cover plate support; 15, driver circuit board; 16, transparent adhesive; 17, touch PCB board; 18, plastic 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. Figure 11 is provided in the embodiment of the present application.

[0012] Implementation Methods of the Application

[0013] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0014] 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. 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, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0015] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0016] The use of "suitable for" or "configured to" in this application is intended to be open and inclusive language, and does not exclude devices that are adapted or configured to perform additional tasks or steps. In addition, the use of "based on" is intended to be open and inclusive, as a process, step, calculation, or other action that is "based on" one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0017] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that one 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 are not 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 this application.

[0018] In the related art, after the driver circuit board is wrapped around the back of the display panel and secured using the chip-on-film (COF), a cover plate support is required to support the cover plate above the display panel. After installation, the cover plate support typically interferes with the COF. However, the end of the cover plate support closest to the display panel typically protrudes toward the display panel, which can easily lead to damage to the COF due to excessive force during installation, affecting the operational stability of the COF and display panel, and even causing the COF to fail.

[0019] Based on this, an embodiment of the present disclosure provides a display module. As shown in FIG1 , the display module 100 includes a frame 10 , a display panel 11 , a cover 12 , a COF 13 , and a cover support 14 .

[0020] The display panel 11 is fixed to the frame 10 , and 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 .

[0021] One end of the chip-on-film (COF) 13 is electrically connected to the display panel 11, and the other end of the COF 13, which is away from the display panel 11, is configured to be electrically connected to the driver 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 driver circuit board 15. In this way, data can be transmitted between the display panel 11 and the driver circuit board 15 via the COF 13.

[0022] The cover plate support member 14 is disposed on a side of the cover plate 12 close to the display panel 11. The cover plate support member 14 abuts against the extension portion 121 and is used to support the cover plate 12. The cover plate support member 14 is connected to the frame 10. In this way, the cover plate support member 14 can provide stable support for the cover plate 12, thereby preventing the cover plate 12 from easily denting when subjected to force.

[0023] There is an avoidance gap between the cover support 14 and the chip-on-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-film 13 during the installation process, thereby ensuring the stable display of the display panel 11.

[0024] In some embodiments, the clearance gap includes a clearance distance F in a first direction parallel to the display plane of the display panel 11. For example, the first direction can be horizontal, perpendicular to the thickness of the display panel 11. The clearance distance F is greater than or equal to 3 mm. This arrangement provides a safe distance for operators during installation, effectively preventing damage to the COF 13 caused by the cover support 14 during installation.

[0025] 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 .

[0026] 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 the corresponding portion of the COF 13 in the first direction.

[0027] In some embodiments, the clearance distance F is greater than or equal to 5 mm and less than or equal to 8 mm. This arrangement helps further provide sufficient safety distance for the chip-on-film 13, preventing damage to the chip-on-film 13 during installation of the cover support 14. It also provides sufficient heat dissipation space for the chip-on-film 13, thereby improving the heat dissipation efficiency of the chip-on-film 13. Furthermore, the clearance distance F helps control the overall length of the display module 100, preventing the display module 100 from being too long and affecting its user experience.

[0028] Exemplarily, the avoidance distance F may be 5 mm, 6 mm, 7 mm or 8 mm.

[0029] The clearance distances F in the first direction between various portions of the cover support 14 and corresponding portions of the chip-on-film 13 may be equal or unequal. When the clearance distances F between various portions of the cover support 14 and corresponding portions 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 remains consistent with the clearance distance F described in the above embodiment.

[0030] 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.

[0031] In some examples, the clearance also includes a minimum spacing between the cover support 14 and the chip-on-film 13, and this minimum spacing is greater than or equal to 3 mm. This minimum spacing is the shortest distance between the cover support 14 and the chip-on-film 13. This configuration effectively prevents the cover support 14 from damaging the chip-on-film 13 during installation.

[0032] 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.

[0033] It is worth noting that the display panel 11 and the first end 131 of the chip-on-film 13 can be electrically connected before the display panel 11 and the cover plate 12 are bonded together. This ensures the connection stability between the display panel 11 and the chip-on-film 13 on the one hand, and enables the display panel 11, the chip-on-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.

[0034] 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.

[0035] In some embodiments, as shown in Figures 1 and 2, the cover support member 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.

[0036] This arrangement allows for a larger bonding surface between the first extension portion 142 and the extension portion 121, thereby improving the bonding stability between the cover plate support member 14 and the extension portion 121. Furthermore, the increased connection surface between the first extension portion 142 and the extension portion 121 further improves the support stability of the cover plate support member 14 for the cover plate 12.

[0037] In some examples, as shown in FIG1 , the display module 100 further includes a first adhesive 201 disposed between the first extension portion 142 and the extension portion 121. The first extension portion 142 and the extension portion 121 are connected by the first adhesive 201. For example, the first adhesive 201 is a double-sided foam adhesive.

[0038] In some examples, as shown in Figure 2, the first extension portion 142 includes a first surface 1421, which is located on a side of the first extension portion 142 close to the extension portion 121. The first surface 1421 is parallel to the bottom surface of the extension portion 121, which is conducive to ensuring stable bonding between the first extension portion 142 and the extension portion 121.

[0039] In some examples, the extension direction of the main body 141 and the extension direction of the first extension portion 142 are arranged to intersect. Exemplarily, as shown in Figures 1 and 2, the extension direction of the main body 141 and the extension direction of the first extension portion 142 can be perpendicular to each other. In some embodiments, the extension direction of the first extension portion 142 is in the direction away from the display panel 11 (or the first end 131 of the chip-on-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 141) from causing damage to the chip-on-film 13, thereby facilitating the stability of the chip-on-film 13.

[0040] In this case, there is a clearance distance F between the connecting end of the first extending portion 142 (ie, the end of the first extending portion 142 connected to the main body 141 ) and the first end 131 of the COF 13 .

[0041] 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-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 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-film 13 and the edge surface of the extension portion 121 are in the same plane), which is beneficial to the division of the display module 100 area and the subsequent installation of other components.

[0042] In this case, a clearance distance F is provided between the free end of the first extension portion 142 and the first end 131 of the chip-on-film 13. This prevents the free end of the first extension portion 142 from puncturing the first end 131 of the chip-on-film 13 during installation. In some examples, as shown in FIG2 , the first extension portion 142 includes a free end having a circular arc surface. This circular arc surface effectively prevents the risk of puncturing the chip-on-film 13 if the first extension portion 142 accidentally contacts the chip-on-film 13 during installation.

[0043] Illustratively, the first extension portion 142 includes a first surface 1421 , a second surface 1422 and a third surface 1423 connected in sequence. 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.

[0044] In some embodiments, as shown in Figures 1 and 2, the cover support 14 also includes a second extension portion 143 located at an 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).

[0045] Since the second extension portion 143 extends in a direction away from the first end 131 , the second extension portion 143 can be prevented from contacting the COF 13 and affecting the stability of the COF 13 .

[0046] In some examples, the extending direction of the second extending portion 143 is parallel to the extending direction of the first extending portion 142 .

[0047] In some embodiments, as shown in Figures 1 and 2, 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.

[0048] This arrangement facilitates maintenance of the display module 100 by installing or removing the connector 202. Since the maintenance location is relatively far 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.

[0049] For example, the connecting member 202 may be a screw.

[0050] In some examples, the frame 10 includes a back panel 101, a frame 102, and a connecting bracket 103. The connecting bracket 103 is connected to the back panel 101 and the frame 102 respectively.

[0051] 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. 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.

[0052] Regarding the frame 102 , a touch PCB board 17 may be provided 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.

[0053] In some examples, the display module 100 further includes a filter bar 203 , which is disposed between the frame 102 and the cover plate 12 . The filter bar 203 is embedded in a slot in the frame 102 to be fixed in the frame 102 .

[0054] In some embodiments, the display module 100 further includes a plastic frame 18 having a snap-in slot into which one end of the back panel 101 snaps to connect the plastic frame 18 to the back panel 101. The plastic frame 18 has a fixing surface on the side closest to the display panel 11. The plastic frame 18 and the display panel 11 are fixed together by a foam 204 located on the fixing surface, thereby securing the display panel 11 to the back panel 101.

[0055] Some embodiments disclosed in this application also provide a display device, which includes the display module 100 described in any of the above embodiments. Due to the inclusion of the above display module 100, the display device has all the technical effects possessed by the above display modules, which will not be described in detail here.

[0056] The above is a detailed introduction to the utility model names provided in the embodiments of the present application. Specific examples are used herein 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 those skilled in the art, based on the ideas 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, comprising: A housing; A display panel fixed to the housing; A cover plate disposed on the display panel, and the cover plate has an extension portion extending beyond the display panel; A chip - on - film, one end of the chip - on - film is electrically connected to the display panel, and the end of the chip - on - film away from the display panel is configured to be electrically connected to a driving circuit board; and A cover - plate support member that abuts against the extension portion and is used to support the cover plate, the cover - plate support member is connected to the housing, and there is a clearance between the cover - plate support member and the chip - on - film.

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

3. The display module according to claim 2, wherein, The clearance distance is greater than or equal to 5 mm and less than or equal to 8 mm.

4. The display module according to claim 1, wherein, The cover - plate support member includes: a main body portion and a first extension portion located at one end of the main body portion, the first extension portion is parallel to the extension portion and abuts against the extension portion.

5. The display module according to claim 4, wherein, It further includes a first adhesive, the first adhesive is disposed between the first extension portion and the extension portion, and the first extension portion and the extension portion are connected by the first adhesive.

6. The display module according to claim 5, wherein, The first adhesive is a double - sided foam tape.

7. The display module according to claim 5, wherein, The first extension portion includes a first surface, the first surface is located on the side of the first extension portion close to the extension portion, and the first surface is parallel to the bottom surface of the extension portion.

8. The display module according to claim 4, wherein, The extending direction of the main body portion is arranged to intersect with the extending direction of the first extension portion.

9. The display module according to claim 4, wherein, The first extension portion extends along the direction close to the display panel.

10. The display module according to claim 4, wherein, The first extension portion extends along the direction away from the display panel.

11. The display module according to claim 10, wherein, The first extension portion includes a free end, the free end is located at the end of the first extension portion away from the main body portion, and the surface of the free end is an arc surface.

12. The display module according to claim 4, wherein, The cover - plate support member further includes a second extension portion located at the end of the main body portion away from the first extension portion, the second extension portion is connected to the housing, and the second extension portion extends along the direction away from the display panel.

13. The display module according to claim 12, wherein, The extending direction of the second extension portion is parallel to the extending direction of the first extension portion.

14. The display module according to claim 12, wherein, A first opening is provided on the second extension portion, and a second opening is provided at the corresponding position of the housing for the first opening. The second extension portion and the housing are connected by a connecting member passing through the first opening and the second opening.

15. The display module according to claim 14, wherein, The housing includes a back plate, a frame, and a connecting bracket, and the connecting bracket is respectively connected to the back plate and the frame.

16. The display module according to claim 15, wherein, The second opening includes a first sub - opening located on the frame and a second sub - opening located on the connecting bracket. The frame, the cover - plate support member, and the connecting bracket are connected by a connecting member passing through the second sub - opening, the first opening, and the first sub - opening in sequence.

17. The display module according to claim 15, wherein It further includes a light - filtering strip, the light - filtering strip is disposed between the frame and the cover plate, and the light - filtering strip is embedded in a card slot of the frame.

18. The display module according to claim 1, wherein, The cover - plate support member is a tempered - glass support member.

19. The display module according to claim 1, wherein, It further includes a transparent adhesive, the transparent adhesive is disposed between the display panel and the cover plate, and the display panel and the cover plate are bonded by the transparent adhesive.

20. A display device, which includes a display module, and the display module includes: A frame; A display panel, fixed on the frame; A cover plate, disposed on the display panel, and the cover plate has an extension portion that extends beyond the display panel; A flip-chip film, one end of the flip-chip film is electrically connected to the display panel, and the end of the flip-chip film away from the display panel is configured to be electrically connected to a driving circuit board; and A cover plate support member, which abuts against the extension portion and is used to support the cover plate. The cover plate support member is connected to the frame, and there is a clearance between the cover plate support member and the flip-chip film.

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