Main screen circuit board and display terminal

Abstract

The utility model discloses a main screen circuit board, comprising a binding end used for binding connection with a display panel and comprising a first signal terminal and a first grounding terminal; the driving end is used for being electrically connected with a display driving board and comprises a second signal terminal; the grounding end is used for being electrically connected with the terminal control mainboard and comprises a second grounding terminal; wherein the first signal terminal and the second signal terminal are electrically connected through a first internal wire of the main screen circuit board, and the first grounding terminal and the second grounding terminal are electrically connected through a second internal wire of the main screen circuit board. The main screen circuit board can improve the electrostatic protection capability of the display panel. The utility model further discloses a display terminal which comprises the main screen circuit board.

Description

Technical Field

[0001] The utility model relates to the display field, in particular to a main screen circuit board and a display terminal. Background Art

[0002] The display panel is prone to static electricity due to frequent contact and friction with user fingers or other objects during use. If the static electricity generated by the display panel cannot be released to the ground in time, it will break down the internal circuit of the display panel, causing poor display.

[0003] In the current prior art, the main screen circuit board bound to the display panel is provided with a grounding terminal. The display panel is first electrically connected to the display driver board through its main screen circuit board, and then the display driver board is electrically connected to the terminal control mainboard of the display terminal through the adapter circuit board, and the static electricity generated by the display panel is grounded using the grounding circuit on the terminal control mainboard. The display panel and the terminal control mainboard are connected in sequence through the main screen circuit board, the display driver board and the adapter circuit board, which not only has a complex grounding connection structure, but also a long grounding path, which restricts the speed of static electricity release. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a main screen circuit board, which can improve the electrostatic protection capability of the display panel.

[0005] The utility model also provides a display terminal, comprising the main screen circuit board.

[0006] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0007] A main screen circuit board, comprising:

[0008] A binding terminal, used for binding and connecting with the display panel, comprising a first signal terminal and a first ground terminal;

[0009] A driving end, used for electrically connecting to a display driving board, comprising a second signal terminal;

[0010] A ground terminal, used for electrically connecting to the terminal control mainboard, including a second ground terminal;

[0011] Among them, the first signal terminal and the second signal terminal are electrically connected through a first internal wiring of the main screen circuit board, and the first grounding terminal and the second grounding terminal are electrically connected through a second internal wiring of the main screen circuit board.

[0012] Furthermore, the main screen circuit board is provided with a notch structure between the driving end and the grounding end.

[0013] Furthermore, the notch structure extends to the side of the binding end along the connection direction of the binding end and the driving end.

[0014] Furthermore, the grounding end extends to the outside of the driving end along the connection direction of the binding end and the driving end.

[0015] A display terminal, comprising:

[0016] A display panel, including a panel signal terminal and a panel ground terminal;

[0017] A display driver board, including a drive signal terminal and a control signal terminal;

[0018] Terminal control mainboard, including mainboard signal terminals and mainboard grounding circuit;

[0019] The main screen circuit board mentioned above, the first signal terminal and the first grounding terminal of the binding end are respectively bound and connected to the panel signal terminal and the panel grounding terminal of the display panel, the second signal terminal of the driving end is electrically connected to the driving signal terminal of the display driving board, and the second grounding terminal of the grounding end is electrically connected to the mainboard grounding circuit of the terminal control mainboard;

[0020] The adapter circuit board comprises a first adapter terminal and a second adapter terminal, wherein the first adapter terminal is electrically connected to the control signal terminal of the display driving board, and the second adapter terminal is electrically connected to the mainboard signal terminal of the terminal control mainboard.

[0021] Furthermore, the display terminal further includes a protective cover plate, and the protective cover plate is attached to the display side surface of the display panel.

[0022] Furthermore, the display terminal further comprises OCA optical glue, and the protection cover plate and the display panel are bonded together by the OCA optical glue.

[0023] Furthermore, the display terminal also includes a terminal shell, which includes an assembly cavity and an opening connected to the assembly cavity; the display panel, display driver board, terminal control main board, main screen circuit board and the adapter circuit board are all arranged in the assembly cavity of the terminal shell, and the display panel is located at the opening of the terminal shell.

[0024] Furthermore, the opening of the terminal housing protrudes inward to form a bearing platform surrounding the display panel, and the bearing platform is used to bear and fix a protective cover plate for fixing the display panel.

[0025] Furthermore, the display terminal further comprises a panel bracket, the display panel is arranged on one side of the panel bracket, and the display driving board is arranged on the other side of the panel bracket.

[0026] The utility model has the following beneficial effects: the main screen circuit board of the utility model is provided with a special grounding terminal which is directly electrically connected to the terminal control mainboard, and the static electricity generated by the display panel can be transferred to the terminal control mainboard through the first grounding terminal and the second grounding terminal in turn for grounding treatment, without passing through the display driver board and the adapter circuit board, thereby simplifying the grounding connection structure between the display panel and the terminal control mainboard, and also shortening the grounding path between the display panel and the terminal control mainboard, so that the static electricity generated by the display panel can be released to the ground through the terminal control mainboard more quickly, thereby improving the static electricity protection capability of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of the main screen circuit board provided by the utility model.

[0028] Figure 2 This is a schematic diagram of stacking the display terminals provided by the utility model.

[0029] Figure 3 The present invention provides a schematic diagram of the connection between the display panel and the main screen circuit board in the display terminal. DETAILED DESCRIPTION

[0030] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention.

[0032] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0034] like Figure 1 As shown, a main screen circuit board 4 includes:

[0035] The binding terminal 41 is used for binding and connecting with the display panel, and includes a first signal terminal 411 and a first ground terminal 412;

[0036] The driving end 42 is used for electrically connecting to the display driving board, and includes a second signal terminal 421;

[0037] The ground terminal 43 is used to be electrically connected to the terminal control mainboard, and includes a second ground terminal 431;

[0038] Among them, the first signal terminal 411 and the second signal terminal 421 are electrically connected through the first internal wiring 44 of the main screen circuit board 4, and the first grounding terminal 412 and the second grounding terminal 431 are electrically connected through the second internal wiring 45 of the main screen circuit board 4.

[0039] The main screen circuit board 4 of the utility model is provided with a special grounding terminal 43 which is directly electrically connected to the terminal control mainboard. The static electricity generated by the display panel can be transferred to the terminal control mainboard for grounding through the first grounding terminal 412 and the second grounding terminal 431 in turn without passing through the display driver board and the adapter circuit board, thereby simplifying the grounding connection structure between the display panel and the terminal control mainboard, and also shortening the grounding path between the display panel and the terminal control mainboard, so that the static electricity generated by the display panel can be released to the ground through the terminal control mainboard more quickly, thereby improving the static electricity protection capability of the display panel.

[0040] The main screen circuit board 4 is a flexible circuit board with certain flexibility and flexibility, so that when assembling the display terminal, the driving end 42 and the grounding end 43 on the main screen circuit board 4 can be appropriately bent, so as to better connect them to the display driving board and the terminal control main board respectively.

[0041] Preferably, the main screen circuit board 4 is provided with a notch structure 46 between the driving end 42 and the grounding end 43 .

[0042] The main screen circuit board 4 of the utility model is provided with the notch structure 46 between the driving end 42 and the grounding end 43, so that the stress transfer between the driving end 42 and the grounding end 43 is disconnected at the notch structure 46, so that when at least one of the driving end 42 and the grounding end 43 is bent, the two will not affect each other, that is, when the driving end 42 is bent, the bending stress of the driving end 42 will not be transferred to the grounding end 43, and similarly, when the grounding end 43 is bent, the bending stress of the grounding end 43 will not be transferred to the driving end 42.

[0043] In this embodiment, the notch structure 46 extends to the side of the binding end 41 along the connecting direction of the binding end 41 and the driving end 42 to reduce the stress transfer between the binding end 41 and the driving end 42 as much as possible.

[0044] Preferably, the grounding terminal 43 extends outside the driving end 42 along the connection direction of the binding end 41 and the driving end 42, so that the grounding terminal 43 can be better extended to the terminal control mainboard for connection therewith when the display terminal is assembled. Embodiment 2

[0045] like Figure 2 and 3 As shown, a display terminal includes:

[0046] Display panel 1, including panel signal terminals and panel ground terminals 43;

[0047] Display driving board 2, including driving signal terminals and control signal terminals;

[0048] The terminal control mainboard 3 includes a mainboard signal terminal and a mainboard grounding circuit;

[0049] The main screen circuit board 4 described in the first embodiment, the first signal terminal 411 and the first grounding terminal 412 of the binding end 41 are respectively connected to the panel signal terminal and the panel grounding terminal 43 of the display panel 1, the second signal terminal 421 of the driving end 42 is electrically connected to the driving signal terminal of the display driving board 2, and the second grounding terminal 431 of the grounding end 43 is electrically connected to the mainboard grounding circuit of the terminal control mainboard 3;

[0050] The adapter circuit board 5 includes a first adapter terminal and a second adapter terminal, wherein the first adapter terminal is electrically connected to the control signal terminal of the display driver board 2 , and the second adapter terminal is electrically connected to the mainboard signal terminal of the terminal control mainboard 3 .

[0051] The display terminal of the utility model has two transmission channels, one is a signal transmission channel, and the other is an electrostatic transmission channel. The starting point of the signal transmission channel is the terminal control mainboard 3, and the end point is the display panel 1. Specifically, the terminal control mainboard 3 transmits the control signal and display data to the second transfer terminal of the transfer circuit board 5 through its mainboard signal terminal according to the user operation, and the transfer circuit board 5 then transmits the control signal and display data to the control signal terminal of the display driver board 2 through its first transfer terminal, and the display driver board 2 then converts the control signal and display data into the drive signal of the display panel 1, and transmits it to the second signal terminal 421 of the main screen circuit board 4 through its drive signal terminal, and the main screen circuit board 4 then transmits the drive signal to the panel signal terminal of the display panel 1 through its first signal terminal 411, and finally the display panel 1 displays according to the drive signal. The starting point of the electrostatic transmission channel is the display panel 1, with the focus on the terminal control mainboard 3. Specifically, the static electricity generated by the display panel 1 is transmitted to the first grounding terminal 412 of the main screen circuit board 4 through its panel grounding terminal 43, and then transmitted to the mainboard grounding terminal 43 of the terminal control mainboard 3 through the second grounding terminal 431 of the main screen circuit board 4. Finally, the grounding circuit of the terminal control mainboard 3 releases the static electricity to the ground.

[0052] The display terminal further includes a protective cover plate 7 and OCA optical adhesive, and the protective cover plate 7 is adhered to the display side surface of the display panel 1 through the OCA optical adhesive.

[0053] The display terminal also includes a terminal shell 6, which includes an assembly cavity 61 and an opening connected to the assembly cavity 61; the display panel 1, the display driver board 2, the terminal control main board 3, the main screen circuit board 4 and the adapter circuit board 5 are all arranged in the assembly cavity 61 of the terminal shell 6, and the display panel 1 is located at the opening of the terminal shell 6, and the terminal control main board 3 is located on the back panel of the terminal shell 6.

[0054] The opening of the terminal shell 6 protrudes inward to form a bearing platform 62 surrounding the display panel 1, and the bearing platform 62 is used to bear and fix the protective cover plate 7 of the display panel 1; the periphery of the protective cover plate 7 is fixed to the bearing platform 62 of the terminal shell 6 by adhesive.

[0055] The display terminal also includes a panel bracket 8 for supporting the display panel 1 and the display driver board 2; the display panel 1 can be fixed on one side of the panel bracket 8 by, but not limited to, bonding or the like, and the display driver board 2 can be fixed on the other side of the panel bracket 8 by, but not limited to, screw locking or the like; the panel bracket 8 and the terminal housing 6 can be connected and fixed by, but not limited to, snap-fit ​​structures or the like.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A main screen circuit board, characterized in that: include: A binding terminal, used for binding and connecting with the display panel, comprising a first signal terminal and a first ground terminal; A driving end, used for electrically connecting to a display driving board, comprising a second signal terminal; A ground terminal, used for electrically connecting to the terminal control mainboard, including a second ground terminal; Among them, the first signal terminal and the second signal terminal are electrically connected through a first internal wiring of the main screen circuit board, and the first grounding terminal and the second grounding terminal are electrically connected through a second internal wiring of the main screen circuit board.

2. The main screen circuit board according to claim 1, characterized in that: The main screen circuit board is provided with a notch structure between the driving end and the grounding end.

3. The main screen circuit board according to claim 2, characterized in that: The notch structure extends to the side of the binding end along the connection direction of the binding end and the driving end.

4. The main screen circuit board according to any one of claims 1 to 3, characterized in that: The grounding end extends to the outside of the driving end along the connection direction of the binding end and the driving end.

5. A display terminal, characterized in that: include: A display panel, including a panel signal terminal and a panel ground terminal; A display driver board, including a drive signal terminal and a control signal terminal; Terminal control mainboard, including mainboard signal terminals and mainboard grounding circuit; The main screen circuit board of claim 1, the first signal terminal and the first grounding terminal of the binding end are respectively bound and connected to the panel signal terminal and the panel grounding terminal of the display panel, the second signal terminal of the driving end is electrically connected to the driving signal terminal of the display driving board, and the second grounding terminal of the grounding end is electrically connected to the mainboard grounding circuit of the terminal control mainboard; The adapter circuit board comprises a first adapter terminal and a second adapter terminal, wherein the first adapter terminal is electrically connected to the control signal terminal of the display driving board, and the second adapter terminal is electrically connected to the mainboard signal terminal of the terminal control mainboard.

6. The display terminal according to claim 5, characterized in that: The display terminal further includes a protective cover plate, which is attached to the display side surface of the display panel.

7. The display terminal according to claim 6, characterized in that: The display terminal further comprises OCA optical glue, and the protection cover plate and the display panel are bonded together by the OCA optical glue.

8. The display terminal according to claim 6, characterized in that: The display terminal also includes a terminal shell, which includes an assembly cavity and an opening connected to the assembly cavity; the display panel, display driver board, terminal control main board, main screen circuit board and the adapter circuit board are all arranged in the assembly cavity of the terminal shell, and the display panel is located at the opening of the terminal shell.

9. The display terminal according to claim 8, characterized in that: The opening of the terminal housing protrudes inward to form a bearing platform surrounding the display panel, and the bearing platform is used to bear and fix the protective cover plate of the display panel.

10. The display terminal according to claim 6, characterized in that: The display terminal further comprises a panel bracket, the display panel is arranged on one side of the panel bracket, and the display driving board is arranged on the other side of the panel bracket.

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