Touch display module

Abstract

The utility model discloses a touch display module. The touch display module comprises a touch screen, a flexible circuit board and a backlight iron stand, the touch screen is provided with a connecting surface, and the backlight iron stand is positioned and connected to the connecting surface; binding positions are arranged on the connecting surfaces; the flexible circuit board is provided with a fixed end and a movable end; the fixed end is in positioning connection with the binding position, and the movable end is in positioning connection with one side surface of the backlight iron stand away from the touch screen; the touch display module further comprises a conductive band, the conductive band is arranged on the surface of the side, away from the touch screen, of the fixed end so that the binding position can be covered, the binding position can be covered through the conductive band, that is, the conductive band and the backlight iron stand are grounded, and therefore electrostatic protection can be conducted on the binding position; the fixed end of the flexible circuit board is directly guided to be in positioning connection with the binding position, then the movable end is guided to be in positioning connection with the surface of the side, away from the touch screen, of the backlight iron frame, and finally, a conductive band is guided to be arranged along the surface of the side, away from the touch screen, of the fixed end.

Description

Technical Field

[0001] This utility model relates to the field of display screens, and in particular to a touch display module. Background Technology

[0002] Touch display modules, as human-computer interaction modules, are increasingly widely used in electronic terminals such as mobile phones, tablets, and personal computers. In the production process of touch modules, the on-cell structure is used particularly frequently. The on-cell structure refers to the method of embedding the touch screen between the color filter substrate and the polarizer of the display screen. This means that a touch sensor is placed on the display panel, eliminating the need for an external touch panel component and simplifying user operation. To improve the anti-static capability of the touch display module, the touch screen FPC and the display FPC are typically grounded with copper leakage, and then attached to the backlight frame using conductive adhesive to achieve grounding with the backlight frame.

[0003] A representative example is the patent document with application number CN201921863609.6, which discloses a touch display module. Through the design of the extension, the contact area between the reinforcing plate and the grounding terminal on the FPC board is effectively increased, thereby increasing the contact area between the touch screen and the grounding terminal on the FPC board. This effectively dissipates the static electricity generated by tearing the film and improves the quality of the touch display module.

[0004] Although the technical solutions provided in the aforementioned patent documents have solved the problems in the production process of touch display modules, they still have limitations in their use, as follows:

[0005] During the production process, the touchscreen's FPC needs to be bonded to the TP's sensor (in display modules, "TP" usually refers to "touch panel," and "sensor" usually refers to a sensor used to detect and respond to environmental or user operations; for specific structure, please refer to...). Figure 1 However, since the FPC of the touch screen is bonded to the sensor of the TP, when the bonding position is exposed, static electricity can easily damage the bonding position of the TP-FPC, causing poor touch control.

[0006] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content

[0007] Based on this, it is necessary to address the issue raised in the background technology above, because during the production process, the touchscreen's FPC needs to be bound to the TP's sensor (in a display module, "TP" usually refers to "touch panel," and "sensor" usually refers to a sensor used to detect and respond to environmental or user operations; for specific structures, please refer to...). Figure 1 However, since the FPC of the touch screen is bonded to the sensor of the TP, when the bonding position is exposed, static electricity can easily damage the bonding position of the TP-FPC, causing technical problems such as poor touch control. Therefore, a touch display module is provided.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A touch display module, the touch display module comprising a touch screen, a flexible circuit board and a backlight frame;

[0010] The touch screen has a connecting surface, and the backlight frame is positioned and connected to the connecting surface.

[0011] The connection surface is provided with binding positions;

[0012] The flexible circuit board has a fixed end and a movable end; the fixed end is positioned and connected to the binding position, and the movable end is positioned and connected to the surface of the backlight frame away from the touch screen.

[0013] The touch display module also includes a conductive strip, which is disposed along the surface of the fixed end away from the touch screen, so as to cover the bonding position.

[0014] Furthermore, the backlight frame is fixed to the connecting surface by optical adhesive.

[0015] Furthermore, the conductive strip has a covering end and a plug-in end. The covering end is positioned and connected to the surface of the fixed end away from the touch screen. The plug-in end is disposed between the movable end and the backlight frame. The conductive strip is matched and disposed along the edge of the backlight frame in the area between the covering end and the plug-in end.

[0016] Furthermore, there is a bend between the covering end and the plug-in end, and a protective component is provided at the bend.

[0017] Furthermore, the protective component includes a connecting block that is positioned and connected to the edge sidewall of the backlight iron frame near the binding position, and the connecting block has an abutting surface;

[0018] The contact surface is fixedly bonded to the surface of the bent section near the touch screen.

[0019] The protective component also includes an abutment block, which is disposed corresponding to the abutment surface to push the bent section to connect with the abutment surface.

[0020] Furthermore, the contact surface is inclined away from the backlight iron frame.

[0021] Furthermore, both ends of the contact surface have a groove.

[0022] Both ends of the abutment block are bent and have a curved portion that matches the groove portion.

[0023] Furthermore, the protective component includes a fixing block fixedly disposed on the side of the backlight iron frame, and a limiting block is provided on the surface of the bent section away from the backlight iron frame.

[0024] Furthermore, the fixing block is provided with a plurality of penetrating posts arranged in a linear array, the penetrating posts passing through the bending section and connecting to the limiting block.

[0025] Furthermore, the limiting block is provided with a locking groove that matches the penetrating post, and the limiting block is fixedly bonded to the bending section.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] This invention uses a conductive strip to cover the bonding position, that is, to ground the backlight frame through the conductive strip, thereby providing electrostatic protection for the bonding position. Specifically, the fixed end of the flexible circuit board is directly guided to be positioned and connected to the bonding position, and then the movable end is guided to be positioned and connected to the surface of the backlight frame away from the touch screen. Finally, the conductive strip is guided to be arranged along the surface of the fixed end away from the touch screen. Attached Figure Description

[0028] Figure 1 A schematic diagram of the structure for fixing a flexible circuit board as provided in the prior art;

[0029] Figure 2 This is a schematic diagram of the structure when the conductive strip is fixed according to the present invention;

[0030] Figure 3 A schematic diagram of the abutment block structure provided by this utility model;

[0031] Figure 4 A schematic diagram of the limiting block structure provided by this utility model.

[0032] The markings in the diagram are explained as follows:

[0033] 1. Touch screen; 2. Flexible circuit board; 3. Backlight frame; 4. Conductive strip; 5. Connecting block; 6. Abutting surface; 7. Abutting block; 8. Groove; 9. Bending part; 10. Fixing block; 11. Restricting block; 12. Penetrating post; 13. Positioning groove. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0035] As described in the background section, during the production process, the touchscreen's FPC needs to be bonded to the TP's sensor (in a display module, "TP" usually refers to "touch panel," and "sensor" usually refers to a sensor used to detect and respond to environmental or user operations; for specific structures, please refer to...). Figure 1 However, since the FPC of the touch screen is bonded to the sensor of the TP, when the bonding position is exposed, static electricity can easily damage the bonding position of the TP-FPC, causing poor touch control.

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

[0037] For details, please refer to Figures 2-4 The touch display module includes a touch screen 1, a flexible circuit board 2, and a backlight frame 3.

[0038] The touch screen 1 has a connecting surface, and the backlight frame 3 is positioned and connected to the connecting surface.

[0039] The connection surface is provided with binding positions;

[0040] The flexible circuit board 2 has a fixed end and a movable end; the fixed end is positioned and connected to the binding position, and the movable end is positioned and connected to the surface of the backlight iron frame 3 away from the touch screen 1.

[0041] The touch display module also includes a conductive strip 4, which is disposed along the surface of the fixed end away from the touch screen 1 to cover the bonding area. The conductive strip 4 can be made of conductive cloth material currently available in the technology, which will not be elaborated on here.

[0042] This utility model can cover the binding position by means of conductive strip 4, that is, the conductive strip 4 is grounded to the backlight iron frame 3, thereby providing electrostatic protection for the binding position. Specifically, the fixed end of the flexible circuit board 2 is directly guided to be positioned and connected to the binding position, and then the movable end is guided to be positioned and connected to the surface of the backlight iron frame 3 away from the touch screen 1. Finally, the conductive strip 4 is guided to be arranged along the surface of the fixed end away from the touch screen 1.

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

[0044] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

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

[0046] A touch display module, comprising a touch screen 1, a flexible circuit board 2, and a backlight frame 3;

[0047] The touch screen 1 has a connecting surface, and the backlight frame 3 is positioned and connected to the connecting surface.

[0048] The connection surface is provided with binding positions;

[0049] The flexible circuit board 2 has a fixed end and a movable end; the fixed end is positioned and connected to the binding position, and the movable end is positioned and connected to the surface of the backlight iron frame 3 away from the touch screen 1.

[0050] The touch display module also includes a conductive strip 4, which is disposed along the surface of the fixed end away from the touch screen 1 to cover the bonding area. The conductive strip 4 can be made of conductive cloth material currently available in the technology, which will not be elaborated on here.

[0051] This utility model can cover the binding position by means of conductive strip 4, that is, the conductive strip 4 is grounded to the backlight iron frame 3, thereby providing electrostatic protection for the binding position. Specifically, the fixed end of the flexible circuit board 2 is directly guided to be positioned and connected to the binding position, and then the movable end is guided to be positioned and connected to the surface of the backlight iron frame 3 away from the touch screen 1. Finally, the conductive strip 4 is guided to be arranged along the surface of the fixed end away from the touch screen 1.

[0052] In some specific embodiments, the backlight iron frame 3 is fixed to the connecting surface by optical adhesive.

[0053] In some specific embodiments, the conductive strip 4 has a covering end and a plug-in end. The covering end is positioned and connected to the surface of the fixed end away from the touch screen 1. The plug-in end is disposed between the movable end and the backlight frame 3. The conductive strip 4 is matched and disposed along the edge of the backlight frame 3 in the area between the covering end and the plug-in end.

[0054] Reference Figure 2The backlight frame 3 is perpendicular to the upper surface of the touch screen 1, so the area between the cover end and the plug end has three parts: a part, part I, and part (approximately Z-shaped).

[0055] The touch display module provided in Embodiment 1 is further optimized by having a bend between the covering end and the plug-in end, and a protective component is provided at the bend.

[0056] In some specific embodiments, the protective component includes a connecting block 5 that is positioned and connected to the side wall of the edge near the binding position of the backlight iron frame 3, and the connecting block 5 has an abutment surface 6.

[0057] The contact surface 6 is fixedly bonded to the surface of the bent section near the touch screen 1.

[0058] The protective component also includes an abutment block 7, which is correspondingly disposed with the abutment surface 6 to push the bent section to connect with the abutment surface 6.

[0059] In some specific embodiments, the contact surface 6 is inclined away from the backlight iron frame 3.

[0060] In some specific embodiments, both ends of the abutting surface 6 have a groove 8;

[0061] Both ends of the abutment block 7 are bent and have a curved portion 9 that matches the groove portion 8.

[0062] Reference Figure 2 Since the side of the backlight frame 3 is perpendicular to the upper surface of the touch screen 1, the bending section needs to be bent at two 90-degree angles. Compared with obtuse angles, right-angle bending is more difficult and harder to maintain. In order to prevent the bending section from detaching from the adhesive state, the bending section is bonded and fixed by the abutment surface 6 on the connecting block 5. The abutment surface 6 is inclined away from the backlight frame 3, and the inclination angle can preferably be 30 or 60 degrees.

[0063] Once the contact surface 6 is bonded and fixed to the bent section, the bending is easier and easier to maintain due to the inclined setting of the contact surface 6.

[0064] At the same time, the abutment block 7 pushes the bent section to connect with the abutment surface 6, thereby further increasing the holding effect.

[0065] The fit between the curved part 9 and the grooved part 8 ensures that there are no gaps at the two ends of the abutting block 7.

[0066] The touch display module provided in Embodiment 1 is further optimized by having a bend between the covering end and the plug-in end, and a protective component is provided at the bend.

[0067] The protective component includes a fixing block 10 fixedly installed on the side of the backlight iron frame 3, and a limiting block 11 is provided on the surface of the bent section away from the backlight iron frame 3.

[0068] In some specific embodiments, the fixing block 10 is provided with a plurality of penetrating posts 12 arranged in a linear array, the penetrating posts 12 passing through the bending section and connected to the limiting block 11.

[0069] In some specific embodiments, the limiting block 11 is provided with a locking groove 13 that matches the penetrating post 12, and the limiting block 11 is fixedly bonded to the bent section.

[0070] The pressing effect of the abutment block 7 also shows signs of loosening. Therefore, the penetrating column 12 can be passed through the bent section and connected to the locking groove 13 on the limiting block 11, thereby reducing the probability of the bent section detaching from the backlight iron frame 3.

[0071] The process of using the touch display module provided by this utility model is as follows: This utility model can cover the binding position by means of conductive strip 4, that is, the conductive strip 4 is grounded to the backlight iron frame 3, thereby providing electrostatic protection for the binding position. Specifically, the fixed end of the flexible circuit board 2 is directly guided to be positioned and connected to the binding position, and then the movable end is guided to be positioned and connected to the surface of the backlight iron frame 3 away from the touch screen 1. Finally, the conductive strip 4 is guided to be arranged along the surface of the fixed end away from the touch screen 1.

[0072] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0073] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A touch display module, characterized in that, The touch display module includes a touch screen (1), a flexible circuit board (2), and a backlight frame (3). The touch screen (1) has a connecting surface, and the backlight frame (3) is positioned and connected to the connecting surface; The connection surface is provided with binding positions; The flexible circuit board (2) has a fixed end and a movable end; the fixed end is positioned and connected to the binding position, and the movable end is positioned and connected to the surface of the backlight iron frame (3) away from the touch screen (1); The touch display module also includes a conductive strip (4), which is disposed along the surface of the fixed end away from the touch screen (1) so that the binding position is covered.

2. The touch display module according to claim 1, characterized in that, The backlight frame (3) is fixed to the connecting surface by optical adhesive.

3. The touch display module according to claim 1, characterized in that, The conductive strip (4) has a cover end and a plug end. The cover end is positioned and connected to the surface of the fixed end away from the touch screen (1). The plug end is disposed between the movable end and the backlight frame (3). The area on the conductive strip (4) between the cover end and the plug end is matched and disposed along the edge of the backlight frame (3).

4. The touch display module according to claim 3, characterized in that, The area between the cover end and the plug end is a bent section, and a protective component is provided at the bent section.

5. The touch display module according to claim 4, characterized in that, The protective component includes a connecting block (5) that is positioned and connected to the side wall of the edge near the binding position of the backlight iron frame (3), and the connecting block (5) has an abutting surface (6). The contact surface (6) is fixedly bonded to the surface of the bent section near the touch screen (1); The protective component also includes an abutment block (7), which is correspondingly disposed with the abutment surface (6) to push the bent section to connect with the abutment surface (6).

6. The touch display module according to claim 5, characterized in that, The contact surface (6) is inclined away from the backlight iron frame (3).

7. The touch display module according to claim 6, characterized in that, Both ends of the contact surface (6) have a groove (8). Both ends of the abutment block (7) are bent and have a curved part (9) that matches the groove part (8).

8. The touch display module according to claim 4, characterized in that, The protective component includes a fixing block (10) fixedly installed on the side of the backlight iron frame (3), and a limiting block (11) is provided on the surface of the bent section away from the backlight iron frame (3).

9. The touch display module according to claim 8, characterized in that, The fixing block (10) is provided with a plurality of penetrating columns (12) arranged in a linear array. The penetrating columns (12) pass through the bending section and are connected to the limiting block (11).

10. The touch display module according to claim 9, characterized in that, The limiting block (11) is provided with a locking groove (13) that matches the penetrating post (12), and the limiting block (11) is fixedly bonded to the bending section.

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