CN204155244U - Touch display module and electronical display product - Google Patents

Abstract

The embodiment of the utility model discloses a touch display module and an electronic display product, which relate to the display field, and can integrate the touch FPC and the key FPC which are originally set independently, thereby reducing material and labor costs and improving production efficiency. A touch display module provided by the utility model includes: an embedded touch display panel, and also includes: a secondary FPC, the functions of a touch FPC and a button FPC are integrated on the secondary FPC; the touch FPC It is connected with the touch signal line of the embedded touch display panel to realize the touch function of the embedded touch display panel; the button FPC is used to realize the touch function of the touch button in the non-display area.

Description

Touch display module and electronic display products

technical field

The utility model relates to the display field, in particular to a touch display module and electronic display products.

Background technique

Flexible printed circuit board (referred to as soft board or FPC) is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film, with high wiring density and light weight. Light and thin, it is mainly used in many products such as mobile phones, notebook computers, PDAs, and digital cameras.

For traditional mobile phones and other products using embedded touch displays, it mainly includes: touch FPC 6 (Touch FPC, used to connect the touch signal of the embedded LCD box), button FPC 7 (used to connect the touch signal of the button), signal), and button light FPC 8 (button LED FPC, used to provide light source for the button). Among them, touch FPC 6 and button FPC 7 are generally designed and manufactured by module manufacturers and assembled on the touch display module, while button lamp FPC 8 is designed and manufactured by mobile phone manufacturers and assembled on the casing.

Under the background that products using embedded touch displays such as mobile phones are being updated more and more quickly, different manufacturers design and manufacture touch FPC 6, button FPC 7 and button light FPC 8, and realize touch function and button function together after assembly. The method can no longer meet the needs of low cost and high production efficiency.

Utility model content

The utility model provides a touch display module and an electronic display product, which can integrate a touch FPC and a button FPC which are originally set independently, thereby reducing material and labor costs and improving production efficiency.

A touch display module, including: an embedded touch display panel, and also includes: a secondary FPC, the functions of a touch FPC and a button FPC are integrated on the secondary FPC; the touch FPC and the embedded The touch signal line of the touch display panel is connected to realize the touch function of the embedded touch display panel; the button FPC is used to realize the touch function of the touch button in the non-display area.

Further, the secondary FPC is also integrated with a key light FPC, and the key light FPC includes a key light and a line connected to the key light.

Optionally, the touch display module further includes: a light guide film, the key light and the light guide film provide a uniform backlight for the touch key; the key light is arranged on the long side of the light guide film or short sides.

Specifically, the secondary FPC includes: an interconnected wiring area, a touch function area, a wiring area, a bending area, a component area, and a joint area; The terminal connected to the touch signal line; the functional module of the touch button is set in the touch function area; the touch chip and related components are set in the component area; the output signal is set in the joint area the end of the line.

Optionally, the wiring area is arranged above or on one side of the touch function area.

Optionally, the secondary FPC is folded at the bending area, and the component area is assembled on the back of the embedded touch display panel.

Optionally, the wiring area, the bending area, the element area and the joint area are connected to each other in sequence, and are respectively connected to the wiring area and the touch function area.

Further, the touch display module further includes: a main FPC connected to the display signal line of the in-cell touch display panel to realize the display function of the in-cell touch display panel; The required FPC is connected to the main FPC through the wire end of the joint area.

Optionally, the in-cell touch display panel is an in-cell liquid crystal display panel, or an in-cell organic light emitting display panel.

This embodiment also provides an electronic display product, including: the touch display module described in any one item.

The utility model provides a touch display module and an electronic display product, which can integrate the touch FPC, button FPC and button light FPC that were originally set independently (if the product design does not include the button light, the touch FPC, Button FPC is integrated together), which reduces the cost of materials. At the same time, in terms of production and assembly processes, the existing technology uses three separate FPCs of touch FPC, button FPC and button light FPC, which require three times of assembly, and are assembled by different manufacturers. However, the utility model is simplified as an integrated secondary FPC, which requires only one assembly, which reduces labor costs and improves production efficiency.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the utility model more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the utility model , for those skilled in the art, other drawings can also be obtained based on these drawings without creative work.

FIG. 1 is a schematic cross-sectional view of an existing mobile phone embedded touch module;

Fig. 2 is the touch module structure 1 provided by the embodiment of the utility model;

Fig. 3 is a secondary FPC plane structure diagram 1 of structure 1 shown in Fig. 2;

Fig. 4 is the secondary FPC plane structure diagram 2 of structure 1 shown in Fig. 2;

Fig. 5 is the touch module structure 2 provided by the embodiment of the present invention;

Fig. 6 is a secondary FPC planar structure diagram 1 of structure 2 shown in Fig. 5;

Fig. 7 is the secondary FPC plane structure diagram 2 of the structure 2 shown in Fig. 5;

Fig. 8 is the structure three of the touch module provided by the embodiment of the utility model;

Fig. 9 is a secondary FPC plane structure diagram of structure three shown in Fig. 8;

Fig. 10 is the touch module structure 4 provided by the embodiment of the present utility model;

FIG. 11 is a secondary FPC plane structure diagram of structure four shown in FIG. 10 .

reference sign

1-cover plate, 2-light guide film, 3-button light, 4-embedded touch display panel, 5-backlight, 6-touch FPC, 7-button FPC, 8-button light FPC, 9-time To FPC, 90-wiring area, 91-button functional area, 92-routing area, 93-bending area, 94-component area, 95-joint area, 10-main FPC.

Detailed ways

The embodiment of the utility model provides a touch display module and an electronic display product, which can integrate the touch FPC, button FPC and button light FPC that were originally set independently (if the product design does not include the button light, the touch FPC and button FPC are integrated together), which reduces material and labor costs and improves production efficiency.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

The embodiment of the utility model provides a touch display module, including: an embedded touch display panel, and also includes: a secondary FPC, the functions of a touch FPC and a button FPC are integrated on the secondary FPC; The touch FPC is connected to the touch signal line of the embedded touch display panel to realize the touch function of the embedded touch display panel; the button FPC in this embodiment is used to realize the touch button in the non-display area touch function.

For touch-screen terminal devices such as mobile phones, tablet computers, e-books, and personal digital assistants, touch FPCs, button FPCs, and button light FPCs are used to set up separately. Among them, touch FPCs and button FPCs are generally designed, manufactured and assembled by module manufacturers. On the touch display module, while the key light FPC is designed and manufactured by the product manufacturer and assembled on the casing. However, the secondary FPC in this embodiment is integrated with the functions of touch FPC and button FPC. If the product design also includes a button light, then further, the secondary FPC is also integrated with a button light FPC. It includes a key light and a line connected to the key light, and the key light provides a backlight for the touch key. The touch display module provided by the embodiment of the utility model has a high degree of integration and requires only one assembly, which reduces material and labor costs and improves production efficiency.

In order for those skilled in the art to better understand the structure of the touch display module provided by the embodiment of the present invention, the technical solution provided by the present invention will be described in detail through specific embodiments below, taking a mobile phone as an example. For ease of understanding, the prior art schemes used as comparisons are also listed in the following description.

As shown in Figure 1, it is an existing touch display module suitable for mobile phones. The main components include a cover plate 1 (Cover Lens), and a liquid crystal panel 4 (the structure is a liquid crystal box Cell+polarizer Pol+chip IC, referred to as COGA) , display screen backlight 5, main FPC (not shown in the figure, for realizing the display function of display screen), touch FPC 6, button FPC 7 and button light FPC 8. The assembly method of the embedded touch module of the mobile phone shown in Figure 1 is as follows: the touch FPC 6 is pressed on the LCD panel 4 (COGA, Cell+IC+POL), the key FPC 7 is pasted on the light guide film 2, and then welded or Connect to the touch FPC 6 through a connector; the key light FPC 8 is designed separately, assembled on the mobile phone case independently, and then soldered or connected to the mobile phone motherboard through a connector.

As shown in Figure 2, the touch display module structure 1 applicable to mobile phones provided by the utility model, the main components include a cover plate 1 (Cover Lens), a liquid crystal panel 4 (COGA, the structure is a liquid crystal box Cell+polarizer Pol+ Chip IC), display backlight 5, main FPC (not shown in the figure) and secondary FPC 9. The functions of touch FPC 6, key FPC 7 and key light FPC 8 are integrated on the secondary FPC 9, and the touch display module also includes: light guide film 2, key light 3 and light guide film 2 are touch keys Provides uniform backlighting.

Wherein, the above-mentioned touch FPC 6 is connected with the touch signal line of the embedded touch display panel 4, in order to realize the touch function of the embedded touch display panel 4; The touch function of the touch button; the above-mentioned button lamp FPC 8 includes a button lamp 3 and a circuit connected to the button lamp 3 .

Specifically, as shown in Figures 3 and 4, the secondary FPC 9 is integrated with the functions of the touch FPC 6, button FPC7 and button light FPC 8, specifically including: interconnected wiring area 90, touch function Area 91, wiring area 92, bending area 93, element area 94 and joint area 95; the wire end connected with the touch signal line of the embedded touch display panel 4 is set in the wiring area 90; the touch function area 91 The functional module of the touch key is set; the touch chip and related components are set in the component area 94 ; the line terminals for outputting signals are set in the joint area 95 . Wherein, the key light 3 can be arranged on the long side of the light guide film 2 as shown in FIG. 3 , or arranged on the short side of the light guide film 2 as shown in FIG. 4 . The secondary FPC 9 is folded in the bending area 93, and the component area 94 is assembled on the back of the embedded touch display panel 4.

Those skilled in the art can understand that, the distribution positions of the above-mentioned wiring area 90, touch function area 91, wiring area 92, bending area 93, element area 94 and joint area 95 on the secondary FPC 9, in specific implementation can be set by those skilled in the art according to the actual situation, and those shown in FIG. 3 and FIG. 4 are only for explanation, not limitation. For example, optionally, the wiring area 90 is arranged above or on one side of the touch function area 91; the wiring area 92, the bending area 93, the component area 94 and the joint area 95 are connected to each other in sequence, and are connected to the wiring area 90, The touch functional areas 91 are respectively connected. The lines drawn from the wiring area 90 and the touch function area 91 are routed in the wiring area 92 , and then enter the component area 94 and the joint area 95 .

The embodiment of the utility model provides a touch display module for a mobile phone. The key FPC 7, the key light FPC 8 and the touch FPC 6 are integrated to form a secondary FPC 9, which is assembled on the module. The secondary FPC 9 The button function part on the top is not bent, which can save the assembly process. The assembly method is as follows: press the secondary FPC 9 and the liquid crystal panel 4 (COGA) through the pressing equipment; press the cover plate 1 and the liquid crystal panel 4 (the secondary FPC9 that has been pressed) together through OCA/OCR/frame glue ;Paste the secondary FPC 9 on the light guide film 2 on the cover 1; paste the button light 3 (LED) on the cover 1. Among them, OCA (Optically Clear Adhesive) is a solid transparent optical adhesive, and OCR (Optically Clear Resin) is a liquid optical resin or ultraviolet curable resin, usually called water glue, and also called LOCA (Liquid Optically Clear Adhesive).

As shown in Figure 5, the touch display module structure 2 suitable for mobile phones provided by the embodiment of the utility model, the main components also include a cover plate 1, a liquid crystal panel 4, a display screen backlight 5, and a main FPC (not shown in the figure). shown) and secondary FPC 9. Among them, the secondary FPC 9 is integrated with the functions of touch FPC 6, button FPC 7 and button light FPC 8. The difference from structure 1 is that the touch module used in this embodiment bends the button function area 91 to the front (viewing side) of the secondary FPC 9 . Fig. 6 and Fig. 7 show the plane structure diagram of the secondary FPC 9 in the second structure. In Fig. 6, the button light 3 is arranged on the short side of the light guide film 2, and in Fig. 7 the button light 3 may be arranged on the light guide film 2 the long side of the . The solution of the second structure can shorten the distance between the edge of the A.A area and the touch key.

The specific assembly method is as follows: press the secondary FPC 6 and the liquid crystal panel 4 (Cell+IC+POL) through a pressing device; fold back the key functional area 91 of the secondary FPC 6 and paste it on the main body of the secondary FPC 6 ; Press the cover 1 and the LCD panel 4 (the secondary FPC 6 has been pressed) together through OCA/OCR/frame glue; paste the secondary FPC 9 on the light guide film 2 on the cover 1; press the button The lamp 3 is glued to the cover plate 1 .

As shown in Figure 8, the third structure of the touch display module suitable for mobile phones provided by the embodiment of the utility model differs from the first structure in that the touch display module used in this embodiment does not have button lights, and the secondary FPC 9 only integrates the functions of button FPC and touch FPC. The button function area 91 of the secondary FPC 9 is not bent. It is suitable for embedded touch display modules without button lights, which can save assembly procedures and reduce cost of material. Fig. 9 shows the plane structure diagram of secondary FPC 9 in structure three. The assembly method of the structure three is as follows: press the secondary FPC 9 and the liquid crystal panel 4 (Cell+IC+POL) through the pressing equipment; press the cover plate 1 and the liquid crystal panel 4 (the secondary FPC 9 has been pressed) The OCR/frame glue is pressed together.

As shown in Figure 10, the touch display module structure 4 suitable for mobile phones provided by the embodiment of the present utility model, the touch display module adopted in this embodiment also does not have button lights, and only buttons are integrated on the secondary FPC 9 The functions of FPC and touch FPC are suitable for embedded touch display modules without key lights. Figure 11 shows the plane structure diagram of the secondary FPC in structure four. The difference with the third structure is that the button functional area 91 is partially bent to the front of the secondary FPC 9 . It can minimize the material cost and shorten the distance between the edge of A.A area and the touch key. The assembly method is as follows: press the secondary FPC 9 and the liquid crystal panel 4 (Cell+IC+POL) through the pressing equipment; fold back the key functional area of the secondary FPC 9 and paste it on the main body of the secondary FPC 9; Press the cover plate 1 and the liquid crystal panel 4 (the secondary FPC 9 has been pressed) together by OCA/OCR/frame glue; paste the secondary FPC 9 on the light guide film 2 on the cover plate 1.

Further, the above-mentioned touch display module also includes: a main FPC 10 (see Fig. 8 and Fig. 10), and the main FPC 10 is connected to the display signal line of the embedded touch display panel 4 to realize the built-in touch display panel 4 display function; the secondary FPC9 is connected to the main FPC through the line end of the joint area 95 .

In addition, this embodiment does not limit the specific display manner of the above-mentioned in-cell touch display panel, for example, it may be an in-cell liquid crystal display panel, or an in-cell organic light emitting display panel.

The purpose of this utility model is to provide a specific touch display module suitable for mobile phones. Compared with the traditional built-in touch display module, the secondary FPC9 of this embodiment adopts an integrated design and integrates the traditional built-in touch display module. The touch FPC, button FPC and button light FPC of the display module realize the same function as the traditional module through reasonable assembly. The effect of the utility model is that the number of FPCs can be effectively reduced, the cost of the FPCs can be saved, and the assembly process can be reduced at the same time, so that the production efficiency and yield can be effectively improved.

It should be noted that the technical solution of the utility model is not only applicable to the FPC design of mobile phones, but also applicable to the FPC design of touch-screen terminal devices such as tablet computers, e-books, and personal digital assistants.

Secondly, the secondary FPC of this embodiment integrates the functions of touch FPC, button FPC and button light FPC, but its specific shape is not limited to the examples described in the example, and the secondary FPC can also be designed as other regular or irregular graphics. It can also be changed according to the specific situation of the number of LEDs and the placement position, and the component layout and wiring design on the secondary FPC can also be changed according to the actual situation, and should not be limited to the above description.

The embodiment of the utility model also provides an electronic product, which includes any one of the touch display modules mentioned above. The electronic product has high integration and low cost. The display device may be any product or component with a display function such as a liquid crystal display, electronic paper, OLED display, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, navigator, etc.

Each embodiment in this specification is described in a progressive manner, and the same and similar parts in each embodiment can be referred to each other.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Any skilled person familiar with the technical field can easily think of changes within the technical scope disclosed by the utility model Or replacement, all should be covered within the scope of protection of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (10)

1. A touch display module, comprising: an embedded touch display panel, characterized in that it also includes: a secondary FPC, the secondary FPC is integrated with a touch FPC and a button FPC; The touch FPC is connected to the touch signal line of the embedded touch display panel to realize the touch function of the embedded touch display panel; the button FPC is used to realize the touch of the touch button in the non-display area control function. 2 . The touch display module according to claim 1 , wherein the secondary FPC is further integrated with a key light FPC, and the key light FPC includes a key light and a line connected to the key light. 3. The touch display module according to claim 2, further comprising: a light guide film, the key light and the light guide film provide uniform backlight for the touch keys; The key light is arranged on the long side or the short side of the light guide film. 4. The touch display module according to claim 1, wherein the secondary FPC comprises: a wiring area, a touch function area, a routing area, a bending area, a component area and a joint area connected to each other; A line end connected to the touch signal line of the embedded touch display panel is arranged in the wiring area; A functional module of the touch button is set in the touch function area; The touch chip and related components are arranged in the component area; A wire terminal for outputting a signal is arranged in the joint area. 5 . The touch display module according to claim 4 , wherein the wiring area is arranged above or on one side of the touch function area. 6. The touch display module according to claim 4 or 5, wherein the secondary FPC is folded in the bending area, and the component area is assembled on the back of the in-cell touch display panel. 7. The touch display module according to claim 4 or 5, wherein the wiring area, the bending area, the element area and the joint area are sequentially connected to each other, and connected to the wiring area and the touch function area are connected respectively. 8. The touch display module according to claim 4, further comprising: a main FPC, the main FPC is connected to the display signal line of the in-cell touch display panel to realize the in-cell touch display module. The display function of the display panel; The secondary FPC is connected to the primary FPC through a wire end of the joint area. 9. The touch display module according to any one of claims 1-3, wherein the in-cell touch display panel is an in-cell liquid crystal display panel or an in-cell organic light emitting display panel. 10. An electronic display product, characterized by comprising: the touch display module according to any one of claims 1-9.