LCM (liquid crystal module) backlight and FPC (flexible printed circuit) structure of LCD screen
The flush welding of FPC boards in the LCM module reduces the width of the LCD screen FPC board and increases panel count, addressing the issues of space and complexity in traditional designs.
Patent Information
- Application Number
- CN202420814299.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-18
AI Technical Summary
The traditional LCM module design results in a large combined width of the FPC boards of the backlight and LCD screen, necessitating a larger space for terminals and a cumbersome operation process due to the protruding FPC board of the LCD screen.
The FPC structure design involves flush welding of the first and second FPC boards, reducing the width of the LCD screen FPC board and increasing panel count by eliminating the protruding part, with pins and soldering pads for connection.
This design reduces the width of the FPC board and minimizes the space required for terminals, enhancing production efficiency and panel count while simplifying the operation process.
Smart Images
Figure CN222213162U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display screens, in particular to an FPC structure of an LCM module backlight and an LCD screen. Background Art
[0002] The traditional LCM module consists of a backlight and an LCD screen, in which the FPC board of the backlight needs to be welded to the FPC board of the LCD screen. However, since the FPC board of the LCD screen needs to protrude a part for welding the backlight FPC board, such as Figure 1 As mentioned above, the protruding part is numbered 1000. This will affect the number of LCD screen FPC board panels, and the combined width of the backlight FPC board and the LCD screen FPC board is large, and the corresponding terminal needs to have a larger space to avoid, and the operation process is very cumbersome. Utility Model Content
[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an FPC structure for an LCM module backlight and an LCD screen, which can reduce the width of the LCD screen FPC board, increase the number of panels, and reduce the space that the terminal corresponding to the LCM module needs to avoid.
[0004] The purpose of this utility model is achieved through the following technical solutions:
[0005] In a first aspect, the present application provides an FPC structure of an LCM module backlight and an LCD screen, comprising: an LCD screen; a first FPC board, arranged on the LCD screen, the first FPC board having a first side; a backlight module, arranged on the LCD screen; a second FPC board, arranged on the backlight module, the second FPC board being welded to the first FPC board, the second FPC board having a second side, and the first side and the second side being flush with each other.
[0006] It also includes pins, which are arranged on the first FPC board.
[0007] It also includes a soldering pad, which is arranged on the second FPC board.
[0008] It also includes a terminal, and the terminal is arranged on the edge of the first FPC board.
[0009] The LCD screen includes a first glass substrate, and the first FPC board is arranged on the first glass substrate.
[0010] The LCD screen further includes a second glass substrate, and the second glass substrate is disposed on the first glass substrate.
[0011] A liquid crystal cell is formed between the first glass substrate and the second glass substrate.
[0012] The LCD screen further includes a first polarizer, which is disposed on the first glass substrate, and the backlight module is disposed on the first polarizer.
[0013] The LCD screen also includes a second polarizer, and the second polarizer is arranged on the second glass substrate.
[0014] The LCD screen further includes a chip, and the chip is disposed on the first glass substrate.
[0015] Compared with the prior art, the utility model has at least the following advantages:
[0016] By cutting off the original protruding part of the first FPC board, the first side edge of the first FPC board and the second side edge of the second FPC board are flush with each other during welding, which not only reduces the width of the first FPC board and increases the number of panels of the first FPC board during the production process, but also reduces the space that the terminal corresponding to the LCM module needs to avoid. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.
[0018] Figure 1 It is a structural schematic diagram of the FPC structure of the LCM module backlight and LCD screen in the prior art;
[0019] Figure 2 It is a structural schematic diagram of the FPC structure of the LCM module backlight and LCD screen in one embodiment of the utility model;
[0020] Figure 3 It is a structural schematic diagram of another implementation of the FPC structure of the LCM module backlight and LCD screen in one embodiment of the utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the first FPC board in one embodiment of the utility model;
[0022] Figure 5 It is a schematic structural diagram of the second FPC board in one embodiment of the utility model. DETAILED DESCRIPTION
[0023] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.
[0024] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0025] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or 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, 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 this application can be understood according to specific circumstances.
[0026] The traditional LCM module consists of a backlight and an LCD screen, in which the FPC board of the backlight needs to be welded to the FPC board of the LCD screen. However, since the FPC board of the LCD screen needs to protrude a part for welding the backlight FPC board, such as Figure 1 As mentioned above, the protruding part is numbered 1000. This will affect the number of LCD screen FPC board panels, and the combined width of the backlight FPC board and the LCD screen FPC board is large, and the corresponding terminal needs to have a larger space to avoid, and the operation process is very cumbersome.
[0027] In response to the above problems, an embodiment of the present application provides an FPC structure for an LCM module backlight and an LCD screen, which can reduce the width of the LCD screen FPC board, increase the number of panels, and reduce the space that the terminal corresponding to the LCM module needs to avoid.
[0028] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.
[0029] See also Figures 2 to 5, an FPC structure of an LCM module backlight and an LCD screen, comprising: an LCD screen 100, a first FPC board 200, a backlight module 300 and a second FPC board 400; the first FPC board 200 is arranged on the LCD screen 100, and the first FPC board 200 has a first side 210; the backlight module 300 is arranged on the LCD screen 100; the second FPC board 400 is arranged on the backlight module 300, the second FPC board 400 is welded on the first FPC board 200, the second FPC board 400 has a second side 410, and the first side 210 and the second side 410 are flush with each other.
[0030] It should be noted that the first FPC board 200 is the FPC board of the LCD screen, and the second FPC board 400 is the backlight FPC board. After the first FPC board 200 and the second FPC board 400 are welded, the first side edge 210 of the first FPC board 200 and the second side edge 410 of the second FPC board 400 are flush and overlapped with each other, that is, the present application cuts off the original protruding part of the first FPC board 200. This method not only reduces the width of the first FPC board 200, and can increase the number of panels of the first FPC board 200 during the production process, but also reduces the space that needs to be avoided by the terminal machine corresponding to the LCM module.
[0031] See also Figure 3 and Figure 5 In one embodiment, the FPC structure of the LCM module backlight and LCD screen further includes a pin 500, which is disposed on the first FPC board 200. Specifically, the FPC structure of the LCM module backlight and LCD screen further includes a pad 600, which is disposed on the second FPC board 400.
[0032] It should be noted that the pins 600 of the first FPC board 200 are used to be soldered with the pads 600 of the second FPC board 400 .
[0033] See also Figure 4 In one embodiment, the FPC structure of the LCM module backlight and the LCD screen further includes a terminal 700 , and the terminal 700 is disposed at an edge of the first FPC board 200 .
[0034] It should be noted that the terminal 700 is used to be plugged into the terminal so that the LCD screen can communicate with the terminal.
[0035] See also Figure 2In one embodiment, the LCD screen 100 includes a first glass substrate 110, and the first FPC board 200 is disposed on the first glass substrate 110. Specifically, the LCD screen 100 also includes a second glass substrate 120, and the second glass substrate 120 is disposed on the first glass substrate 110. Specifically, a liquid crystal cell 130 is formed between the first glass substrate 110 and the second glass substrate 120. Specifically, the LCD screen 100 also includes a first polarizer 140, and the first polarizer 140 is disposed on the first glass substrate 110, and the backlight module 300 is disposed on the first polarizer 140. Specifically, the LCD screen 100 also includes a second polarizer 150, and the second polarizer 150 is disposed on the second glass substrate 120. Specifically, the LCD screen 100 also includes a chip 160, and the chip 160 is disposed on the first glass substrate 110.
[0036] It should be noted that the liquid crystal box 130 is used to inject liquid crystal, and the liquid crystal will deflect after power is turned on. The polarizer plays a role in polarizing light. The chip 160 is used to communicate with the LCD screen.
[0037] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the various embodiments have their own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.
[0038] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.
Claims
1. An FPC structure for an LCM module backlight and an LCD screen, characterized in that: include: LCD screen; A first FPC board is arranged on the LCD screen, and the first FPC board has a first side edge; A backlight module is arranged on the LCD screen; The second FPC board is arranged on the backlight module, the second FPC board is welded to the first FPC board, the second FPC board has a second side edge, and the first side edge and the second side edge are flush with each other.
2. The FPC structure of the LCM module backlight and LCD screen according to claim 1, characterized in that: It also includes pins, which are arranged on the first FPC board.
3. The FPC structure of the LCM module backlight and LCD screen according to claim 2, characterized in that: It also includes a soldering pad, which is arranged on the second FPC board.
4. The FPC structure of the LCM module backlight and LCD screen according to claim 1, characterized in that: It also includes a terminal, and the terminal is arranged on the edge of the first FPC board.
5. The FPC structure of the LCM module backlight and LCD screen according to claim 1, characterized in that: The LCD screen includes a first glass substrate, and the first FPC board is arranged on the first glass substrate.
6. The FPC structure of the LCM module backlight and LCD screen according to claim 5, characterized in that: The LCD screen further includes a second glass substrate, and the second glass substrate is disposed on the first glass substrate.
7. The FPC structure of the LCM module backlight and LCD screen according to claim 6, characterized in that: A liquid crystal cell is formed between the first glass substrate and the second glass substrate.
8. The FPC structure of the LCM module backlight and LCD screen according to claim 6, characterized in that: The LCD screen further includes a first polarizer, which is disposed on the first glass substrate, and the backlight module is disposed on the first polarizer.
9. The FPC structure of the LCM module backlight and LCD screen according to claim 6, characterized in that: The LCD screen also includes a second polarizer, and the second polarizer is arranged on the second glass substrate.
10. The FPC structure of the LCM module backlight and LCD screen according to claim 8, characterized in that: The LCD screen further includes a chip, and the chip is disposed on the first glass substrate.