Touch display module assembly and touch display screen thereof

Abstract

The utility model relates to a touch display module assembly, which comprises a display module and a control card, and the display module is electrically connected with a TFT (Thin Film Transistor) array piece, a display flexible circuit board and a touch flexible circuit board; the TFT array piece is provided with a first display connector and a first touch control connector, and the control card is provided with a second display connector and a second touch control connector; one end of the display flexible circuit board is electrically connected with the first display connector, and the other end is electrically connected with the second display connector; one end of the touch flexible circuit board is electrically connected with the first touch connector, and the other end of the touch flexible circuit board is electrically connected with the second touch connector. The utility model further comprises a touch display screen with the display module assembly. The display flexible circuit board and the touch flexible circuit board are respectively connected with the corresponding first display connector and the second display connector and the first touch connector and the second touch connector, so that display signals and touch signals are transmitted and processed separately, the processing flow is simplified, the communication load is reduced, and the stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of display screens, and more specifically, to a touch display module assembly and a touch display screen thereof. Background Art

[0002] LCD screens are generally FOG (FPC on Glass) structures, formed by a flexible circuit board bound to a TFT (Thin Film Transistor) array glass. When the TFT array is connected to the display PCBA control card, the wiring is carried out through the flexible circuit board. However, the connection end interfaces on the control card and the TFT array are concentrated, and are generally connected to different functional interfaces through the same flexible circuit board or to interfaces with multiple functions through different flexible circuit boards, resulting in complicated wiring. In addition, if the LCD touch screen uses a separate display and touch chip, the touch and display signals go through the same flexible circuit board and structure, which will make the transmission and processing of the touch and display signals complicated and the stability poor. Utility Model Content

[0003] In order to overcome the above-mentioned problems that lead to complicated transmission and processing of touch and display signals, the utility model provides a touch display module assembly and its display screen, which separates the transmission and processing of display signals and touch signals, simplifies the processing flow and improves stability.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a touch display module assembly, including a display module and a control card, the display module is electrically connected to a TFT array component, a display flexible circuit board and a touch flexible circuit board; the TFT array component is provided with a first display connector and a first touch connector, and the control card is provided with a second display connector and a second touch connector; one end of the display flexible circuit board is electrically connected to the first display connector, and the other end is electrically connected to the second display connector; one end of the touch flexible circuit board is electrically connected to the first touch connector, and the other end is electrically connected to the second touch connector.

[0005] In the above technical solution, the display flexible circuit is connected to the control card and the display module through the first display connector and the second display connector respectively, and the touch flexible circuit realizes the electrical connection between the control card and the display module through the first touch connector and the second touch connector respectively. The display signal is transmitted through the display flexible circuit at the first display connector and the second display connector and is subsequently processed, while the touch signal is transmitted through the touch flexible circuit at the first touch connector and the second touch connector and is subsequently processed. By physical separation, the display signal and the touch signal are transmitted and processed separately, which simplifies the signal processing flow, reduces the communication load of the display flexible circuit board and the touch flexible circuit board, and improves stability.

[0006] Preferably, the display flexible circuit board and the touch flexible circuit board are respectively located on both sides of the TFT array along the length direction, the first display connector and the first touch connector are respectively located on both sides of the TFT array along the length direction and are respectively close to the display flexible circuit board and the touch flexible circuit board; the second display connector and the second touch connector are respectively located on both sides of the control card along the length direction. The display flexible circuit board and the touch flexible circuit board are respectively located on both sides of the TFT array along the length direction, and the corresponding first display connector and second display connector are also around the two ends of the display flexible circuit board in the installed state. Similarly, the first touch connector and the second touch connector are also around the two ends of the display flexible circuit board in the installed state. Of course, when designing, the positions of the first display connector and the second display connector can also be fixed first, and then the positions of the first touch connector and the second touch connector can be fixed, and then the display flexible circuit board and the touch flexible circuit board can be installed to achieve this. The purpose of the above two methods is to physically separate the display flexible circuit board and the touch flexible circuit board in two areas, so that there will be no contact and entanglement when wiring, making the wiring simpler.

[0007] Preferably, the display flexible circuit board is provided with two groups, which are respectively located on both sides of the TFT array device along the width direction; the number of the first display connector and the second display connector is consistent with the number of the display flexible circuit board and the positions are set correspondingly; the touch flexible circuit board is provided with two groups, which are respectively located on both sides of the TFT array device along the width direction; the number of the first touch connector and the second touch connector is consistent with the number of the touch flexible circuit board and the positions are set correspondingly. The display flexible circuit board and the flexible circuit board are both provided with two groups, which can realize their own different signal transmission, so that the signal transmission is diverted, and the communication load of the display flexible circuit board and the touch flexible circuit board is further reduced. In addition, the two groups of display flexible circuit boards and the two groups of touch flexible circuit boards are set in separate areas to avoid contact between the four as much as possible, and correspondingly, the first display connector and the second display connector are placed according to their corresponding display flexible circuit boards, and the first touch connector and the second touch connector are the same.

[0008] Preferably, it also includes a backlight flexible circuit board and a backlight light source installed on the display module, the TFT array device is provided with a backlight connector, one end of the backlight flexible circuit board is electrically connected to the backlight light source, and the other end is electrically connected to the backlight connector.

[0009] Preferably, the display flexible circuit board, the touch flexible circuit board and the backlight flexible circuit board are fixed on the TFT array device by bonding. When disconnecting the wiring, the main bodies of the display flexible circuit board, the touch flexible circuit board and the backlight flexible circuit board are all in a fixed state, and there will be no deviation or entanglement.

[0010] Preferably, the first display connector and the second display connector are 60-pin pins; the first touch connector, the second touch connector and the backlight connector are 10-pin pins.

[0011] Preferably, it also includes a shielding cover arranged between the TFT array component and the control card, wherein the shielding cover is used to achieve electromagnetic shielding and heat dissipation between the TFT array component and the control card.

[0012] Preferably, the end surface of the control card away from the TFT array element is provided with a first socket interface and a second socket interface, wherein the first socket interface and the second socket interface are used for communication connection and power supply of the display screen respectively.

[0013] Preferably, it also includes a back plate that wraps the display module, and the control card is fixedly connected to the back plate. The back plate provides support for the display module and allows the control card to be connected and fixed.

[0014] A touch display screen comprises a glass cover plate, a mounting bracket, a back cover and the above-mentioned display module assembly; the display module comprises a liquid crystal module and a backlight module, the glass cover plate is attached to the liquid crystal module; the mounting bracket and the back cover are respectively fixed to the back plate.

[0015] In the above technical solution, the liquid crystal module and the backlight module form a display module, the glass cover is attached to the liquid crystal module by optical adhesive, and is attached to the back panel by structural adhesive, and the backlight module is also attached to the back panel by structural adhesive, forming a fully bonded structure. The control card, the mounting bracket and the back cover are connected and fixed to the back panel by fasteners.

[0016] Compared with the prior art, the beneficial effects of the utility model are: by using a display flexible circuit board and a touch flexible circuit board to respectively connect the corresponding first display connector and the second display connector and the first touch connector and the second touch connector, the display signal and the touch signal are transmitted and processed separately, the signal processing flow is simplified, the communication load of the display flexible circuit board and the touch flexible circuit board is reduced, and the stability is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded view of a touch display module assembly of the utility model;

[0018] Figure 2This is a schematic diagram of the structure of a touch display module of the utility model from a back view perspective;

[0019] Figure 3 It is a structural schematic diagram of a touch display module and a control card of the utility model in an assembled state from a back view;

[0020] Figure 4 The utility model is an exploded view of a touch display screen. DETAILED DESCRIPTION

[0021] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0022] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0024] Example 1

[0025] like Figure 1-3 The embodiment 1 of a touch display module assembly is shown, including a display module 1 and a control card 2. The display module 1 is electrically connected with a TFT array component 3, a display flexible circuit board 4 and a touch flexible circuit board 5; the TFT array component 3 is provided with a first display connector 301 and a first touch connector 302, and the control card 2 is provided with a second display connector 201 and a second touch connector 202; one end of the display flexible circuit board 4 is electrically connected to the first display connector 301, and the other end is electrically connected to the second display connector 201; one end of the touch flexible circuit board 5 is electrically connected to the first touch connector 302, and the other end is electrically connected to the second touch connector 202. In this embodiment, the display flexible circuit board 4 and the touch flexible circuit board 5 are bonded to the TFT array component 3, and the bonding method can be ACF glue.

[0026] Specifically, in the present embodiment, two groups of display flexible circuit boards 4 and two groups of touch flexible circuit boards 5 are respectively arranged, and the two groups of display flexible circuit boards 4 and the two groups of touch flexible circuit boards 5 are respectively located on both sides of the TFT array component 3 along the length direction, and one group of display flexible circuit boards 4 and one group of touch flexible circuit boards 5 are located above the TFT array component 3 along the width direction, and the other group of display flexible circuit boards 4 and touch flexible circuit boards 5 are located below the TFT array component 3 along the width direction, that is, the two display flexible circuit boards 4 and the two touch flexible circuit boards 5 are respectively located at four positions of the TFT array component 3, and the first display connector 301 and the first touch connector 302 are respectively located on both sides of the TFT array component 3 along the length direction and are close to the display flexible circuit board 4 and the touch flexible circuit board 5 respectively; and the corresponding first display connector 301 and the second display connector 201 are also around the two ends of the display flexible circuit board 4 in the installed state, and similarly, the first touch connector 302 and the second touch connector 202 are also around the two ends of the display flexible circuit board 4 in the installed state. That is, the first display connector 301 and the first touch connector 302 are respectively located on both sides of the TFT array 3 along the length direction and are close to the display flexible circuit board 4 and the touch flexible circuit board 5 respectively; the second display connector 201 and the second touch connector 202 are respectively located on both sides of the control card 2 along the length direction. The two groups of first display connectors 301 and second display connectors 201 are arranged along the width direction, and the two groups of first touch controllers and second touch controllers are arranged along the width direction. When designing, the positions of the first display connector 301 and the second display connector 201 can also be fixed first, and then the positions of the first touch connector 302 and the second touch connector 202 can be fixed, and then the display flexible circuit board 4 and the touch flexible circuit board 5 can be installed to achieve this. The purpose of the above two methods is to physically separate the display flexible circuit board 4 and the touch flexible circuit board 5 in four areas, so that there will be no contact and entanglement when wiring, making the wiring simpler. At the same time, the display flexible circuit board 4 and the flexible circuit board are each provided with two groups that can realize different signal transmissions, so that the signal transmission is diverted, and the communication load of the display flexible circuit board 4 and the touch flexible circuit board 5 is further reduced.

[0027] In this embodiment, the two second display connectors 201 on the controller are respectively arranged at the end surface away from the TFT array device 3 and the end surface close to the TFT array device 3, and the two second touch connectors 202 on the controller are respectively arranged at the end surface away from the TFT array device 3 and the end surface close to the TFT array device 3, while the second display connector 201 and the second touch connector 202 located at the end surface close to the TFT array device 3 are not shown in the figure.

[0028] In addition, the first display connector 301 and the second display connector 201 are 60 PIN pins, and the first touch control connector 302 and the second touch control connector 202 are 10 PIN pins.

[0029] The working principle of this embodiment is as follows: the display flexible circuit connects the control card 2 and the display module 1 through the first display connector 301 and the second display connector 201 respectively, and the touch flexible circuit realizes the electrical connection between the control card 2 and the display module 1 through the first touch connector 302 and the second touch connector 202 respectively. The display signal is transmitted through the display flexible circuit at the first display connector 301 and the second display connector 201 and is subsequently processed, while the touch signal is transmitted through the touch flexible circuit at the first touch connector 302 and the second touch connector 202 and is subsequently processed. By means of physical separation, the display signal and the touch signal are transmitted and processed separately, the signal processing flow is simplified, the communication load of the display flexible circuit board 4 and the touch flexible circuit board 5 is reduced, and the stability is improved.

[0030] The beneficial effects of this embodiment are as follows: by using the display flexible circuit board 4 and the touch flexible circuit board 5 to respectively connect the corresponding first display connector 301 and the second display connector 201 and the first touch connector 302 and the second touch connector 202, the display signal and the touch signal are transmitted and processed separately, the signal processing flow is simplified, the communication load of the display flexible circuit board 4 and the touch flexible circuit board 5 is reduced, and the stability is improved.

[0031] Example 2

[0032] Embodiment 2 of a touch display module assembly is different from embodiment 1 in that: Figure 1-3 As shown, it also includes a backlight flexible circuit board 6 and a backlight light source 7 mounted on the display module 1, and a backlight connector 303 on the TFT array element 3. One end of the backlight flexible circuit board 6 is electrically connected to the backlight light source 7, and the other end is electrically connected to the backlight connector 303. The backlight flexible circuit board 6 is fixed to the TFT array element 3 by bonding.

[0033] The backlight connector 303 is a 10-pin connector.

[0034] The remaining features and working principles of this embodiment are consistent with those of Embodiment 1.

[0035] Example 3

[0036] Embodiment 3 of a touch display module assembly is based on any of the above embodiments, and is different from any of the above embodiments in that: Figure 1 and 3As shown, it also includes a shielding cover 8 and a back plate 9 arranged between the TFT array component 3 and the control card 2. The shielding cover 8 is used to achieve electromagnetic shielding and heat dissipation between the TFT array component 3 and the control card 2, and the shielding cover 8 is provided with a through portion for the display flexible circuit board 4 and the touch flexible circuit board 5 to pass through. The back plate 9 wraps the display module 1, and the control card 2 is fixedly connected to the back plate 9. The back plate 9 provides support for the display module 1 and allows the control card 2 to be connected and fixed. The end face of the control card 2 away from the TFT array component 3 is provided with a first socket interface 203 and a second socket interface 204. The first socket interface 203 and the second socket interface 204 are respectively used for communication connection and power supply of the display screen.

[0037] The remaining features and working principles of this embodiment are consistent with those of Embodiment 1 or Embodiment 2.

[0038] Example 4

[0039] like Figure 4 The embodiment of a touch display screen shown in the figure comprises a glass cover plate 10, a mounting bracket 11, a back cover 12 and a display module assembly of embodiment 3; the display module 1 comprises a liquid crystal module and a backlight module, and the glass cover plate 10 is attached to the liquid crystal module; the mounting bracket 11 and the back cover 12 are respectively fixedly connected to the back plate 9. The liquid crystal module and the backlight module constitute the display module 1, the glass cover plate 10 is attached to the liquid crystal module by structural optical adhesive, and is attached to the back plate 9 by structural adhesive at the same time, and the backlight module is also attached to the back plate 9 by structural adhesive, forming a fully attached structure. The control card 2 and the mounting bracket 11 are connected to the back plate 9 by fasteners, and the back cover 12 is fixed to the back plate 9 by screws.

[0040] In this embodiment, a plurality of buffer foams are disposed on the back plate 9 to prevent the display module 1 from being squeezed by the back cover 12 and causing poor display.

[0041] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A touch display module assembly, comprising a display module (1) and a control card (2), wherein the display module (1) is electrically connected to a TFT array element (3), characterized in that: The device also comprises a display flexible circuit board (4) and a touch flexible circuit board (5); the TFT array element (3) is provided with a first display connector (301) and a first touch connector (302), and the control card (2) is provided with a second display connector (201) and a second touch connector (202); one end of the display flexible circuit board (4) is electrically connected to the first display connector (301), and the other end is electrically connected to the second display connector (201); one end of the touch flexible circuit board (5) is electrically connected to the first touch connector (302), and the other end is electrically connected to the second touch connector (202).

2. The touch display module assembly according to claim 1, characterized in that: The display flexible circuit board (4) and the touch flexible circuit board (5) are respectively located on both sides of the TFT array device (3) along the length direction; the first display connector (301) and the first touch connector (302) are respectively located on both sides of the TFT array device (3) along the length direction and are respectively close to the display flexible circuit board (4) and the touch flexible circuit board (5); the second display connector (201) and the second touch connector (202) are respectively located on both sides of the control card (2) along the length direction.

3. The touch display module assembly according to claim 2, characterized in that: The display flexible circuit board (4) is provided with two groups, which are respectively located on both sides of the TFT array device (3) along the width direction; the number of the first display connectors (301) and the second display connectors (201) is consistent with the number of the display flexible circuit boards (4), and the positions are arranged correspondingly; the touch flexible circuit board (5) is provided with two groups, which are respectively located on both sides of the TFT array device (3) along the width direction; the number of the first touch connectors (302) and the second touch connectors (202) is consistent with the number of the touch flexible circuit boards (5), and the positions are arranged correspondingly.

4. The touch display module assembly according to claim 1, characterized in that: It also comprises a backlight flexible circuit board (6) and a backlight light source (7) mounted on the display module (1); a backlight connector (303) is provided on the TFT array element (3); one end of the backlight flexible circuit board (6) is electrically connected to the backlight light source (7), and the other end is electrically connected to the backlight connector (303).

5. The touch display module assembly according to claim 4, characterized in that: The display flexible circuit board (4), the touch flexible circuit board (5) and the backlight flexible circuit board (6) are fixed on the TFT array element (3) by bonding.

6. The touch display module assembly according to claim 5, characterized in that: The first display connector (301) and the second display connector (201) are 60-pin pins; the first touch connector (302), the second touch connector (202) and the backlight connector (303) are 10-pin pins.

7. The touch display module assembly according to any one of claims 1 to 6, characterized in that: It also includes a shielding cover (8) arranged between the TFT array element (3) and the control card (2).

8. The touch display module assembly according to any one of claims 1 to 6, characterized in that: The end surface of the control card (2) away from the TFT array element (3) is provided with a first socket interface (203) and a second socket interface (204).

9. The touch display module assembly according to any one of claims 1 to 6, characterized in that: It also includes a back panel (9) that wraps the display module (1), and the control card (2) is fixedly connected to the back panel (9).

10. A touch display screen, comprising a glass cover plate (10), a mounting bracket (11) and a back cover (12), characterized in that: It also includes the display module assembly as described in claim 9; the display module (1) includes a liquid crystal module and a backlight module, and the glass cover plate (10) is attached to the liquid crystal module; the mounting bracket (11) and the back cover (12) are respectively fixedly connected to the back plate (9).

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