CN214846161U

CN214846161U - Novel liquid crystal display module

Info

Publication number: CN214846161U
Application number: CN202121486573.1U
Authority: CN
Inventors: 朱立君
Original assignee: Dongguan Yuxin Technology Co ltd
Current assignee: Dongguan Yuxin Technology Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-11-23
Anticipated expiration: 2031-06-30

Abstract

The utility model belongs to the technical field of display module assembly technique and specifically relates to a novel liquid crystal display module assembly is related to, including LCD screen, backlight unit, FPC circuit and metal crate, LCD screen and backlight unit all install in metal crate, and the LCD screen is located backlight unit upper end, be provided with the TFT thin film layer in the LCD screen, be provided with the LED lamp in the backlight unit, the FPC circuit includes FPC integrated part, FPC extension, integrated circuit component and FPC connector, FPC integrated part includes the wiring region in the middle of and sets up first integrated area and the second integrated area in wiring region both sides, FPC extension and the wiring region butt joint of FPC integrated part; the production method can avoid conflict with the FPC connector, a structure of single-sided adhesive tape conductive cloth is not required to be designed deliberately in the production and manufacturing process to avoid the FPC connector, the production and manufacturing steps are simplified, the production speed is improved to a certain extent, and the stability of the FPC circuit attached to the back of the metal frame can be ensured, so that the FPC circuit is convenient to package and transport.

Description

Novel liquid crystal display module

Technical Field

The utility model belongs to the technical field of the display module assembly technique and specifically relates to a novel LCD screen display module assembly is related to.

Background

The liquid crystal display module is simply a liquid crystal display and backlight assembly. The display parts of the mobile phone screen are the liquid crystal module and the backlight lamp assembly, and other parts comprise a power supply circuit, a signal processing circuit and the like. The module mainly comprises a liquid crystal display and a backlight assembly. The two parts are assembled together but are independent of each other when in operation (i.e., the circuits are not related); the principle of liquid crystal display is that a backlight lamp assembly emits uniform surface light, and the light is transmitted to eyes of people through a liquid crystal screen; the liquid crystal screen functions to process the light by pixels to display an image; the existing liquid crystal module is structured by placing a liquid crystal box between two parallel glass substrates, arranging a TFT (thin film transistor) on a lower substrate glass, arranging a color filter on an upper substrate glass, and controlling the rotation direction of liquid crystal molecules by changing signals and voltage on the TFT, so as to achieve the purpose of controlling whether polarized light of each pixel point is emitted or not to achieve the display purpose;

however, as the practicability of electronic equipment is continuously improved, the supply of electronic products is not in demand, so that the production and transportation efficiency of the liquid crystal display module is continuously improved, and the production speed, the transportation stability and the assembly convenience of the liquid crystal display module are more and more concerned by people; in order to improve the supply requirements of the liquid crystal display module in the aspects of improving the production speed, transportation stability and the like of the liquid crystal display module, the structure and the whole package of the liquid crystal display module need to be further improved, and a new technical scheme is needed to be provided for realizing the purposes of accelerating the production speed and the transportation stability of the liquid crystal display module; in addition, along with the improvement of the integration level of the IC device, the equipment is gradually miniaturized, the speed of the device is higher and higher, the problem of electromagnetic interference in electronic products is more serious, aiming at the FPC (flexible printed circuit) flat cable for connecting the liquid crystal module and the backlight assembly, in order to ensure that the use of the liquid crystal display module is stable and not interfered, the electromagnetic interference problem also becomes a key design which cannot be ignored by people, an EMI (electro-magnetic interference) plate is arranged on an integrated circuit of the FPC flat cable, and the wiring of the FPC flat cable is subjected to standard design to filter clutter interference of high-frequency components; therefore, in the present society with rapid development, further improvement in production efficiency and transportation stability under the protection of EMI is required for the FPC cable on the liquid crystal display module.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

A novel liquid crystal display module comprises a liquid crystal display, a backlight assembly, an FPC circuit and a metal frame, wherein the liquid crystal display and the backlight assembly are arranged in the metal frame, the liquid crystal display is positioned at the upper end of the backlight assembly, a TFT (thin film transistor) film layer is arranged in the liquid crystal display, an LED lamp is arranged in the backlight assembly, the FPC circuit comprises an FPC integrated part, an FPC extending part, an integrated circuit element and an FPC connector, the FPC integrated part comprises a middle wiring area, a first integrated area and a second integrated area, the first integrated area and the second integrated area are arranged at two sides of the wiring area, the FPC extending part is in butt joint with the wiring area of the FPC integrated part, the integrated circuit element is arranged on the first integrated area, and the FPC connector is arranged on the second integrated area; an LED connecting end is LED out of the first integration area and electrically connected with an LED lamp, a TFT connecting end is LED out of the wiring area, and the TFT connecting end is electrically connected with the TFT thin film layer; the FPC integrated part is also provided with an EMI layer, the EMI layer is arranged in a clearance way at the position corresponding to the integrated circuit element and the FPC connector, single-sided adhesive tape conductive cloth covering the first integrated area and the wiring area is attached to the FPC integrated part, and the FPC integrated part is bent and attached to the back of the metal frame through the single-sided adhesive tape conductive cloth.

Preferably, the liquid crystal screen further comprises an upper glass substrate, a lower glass substrate, a color filter and a liquid crystal box, wherein the color filter is arranged on the upper glass substrate, the liquid crystal box is arranged between the upper glass substrate and the lower glass substrate, the TFT thin film layer is arranged on the lower glass substrate, and the TFT thin film layer is correspondingly matched with the liquid crystal box; the backlight assembly further comprises a backlight substrate, a light guide plate and a light shading plate, the light guide plate is arranged on the light shading plate, the backlight substrate is arranged on the light guide plate, the LED lamps are arranged in a plurality, the LED lamps are uniformly arranged at the rear part of the backlight substrate, and the LED lamps face the side part of the light guide plate.

Preferably, the lower glass substrate and the backlight substrate are both provided with connecting parts extending towards the rear part, and the TFT thin film layer and the LED lamp are both electrically connected with the FPC circuit through the connecting parts; the single-sided tape conductive cloth extends to the connection portion, and covers the LED connection end and the TFT connection end inside.

Preferably, the LED connecting end, the TFT connecting end and the integrated circuit element are covered and attached with high-temperature-resistant insulating glue.

Preferably, an OCA optical cement is disposed between the liquid crystal panel and the backlight assembly, and the liquid crystal panel and the backlight assembly are bonded by the OCA optical cement.

Preferably, the metal frame is of a back closed structure, and a plurality of uniformly distributed air holes are formed in the periphery of the back of the metal frame.

Preferably, the back of the FPC integrated part and the FPC extending part is also provided with a conductive double-sided adhesive tape.

Preferably, the tail end of the FPC extension part is led out to form an equipment connecting end, and soft foam is arranged on the equipment connecting end.

Compared with the prior art, the beneficial effects of the utility model are that:

the FPC circuit can be more compact in overall structure design, the production and manufacturing difficulty of the FPC circuit can be reduced, and the production speed is promoted, the FPC circuit is bent and attached to the back of the metal frame by arranging the single-sided adhesive tape conductive cloth, the FPC connector is arranged on the second integrated area, and the integrated circuit element, the LED connecting end and the TFT connecting end are positioned in the first integrated area and the wiring area, so that the single-sided adhesive tape conductive cloth only covers the first integrated area and the wiring area, the FPC circuit can be stably bent, the conflict with the FPC connector can be avoided, the structure of the single-sided adhesive tape conductive cloth is not required to be deliberately designed to avoid the FPC connector in the production and manufacturing process, the production and manufacturing steps are simplified, the production speed is improved to a certain extent, and the stability of the FPC circuit attached to the back of the metal frame can be guaranteed, so as to be convenient for package and transportation.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a top view of the structure of the present invention;

fig. 2 is a bottom view of the structure of the present invention;

FIG. 3 is a schematic structural view of the FPC circuit of the present invention in a bent state;

FIG. 4 is a schematic structural diagram of the FPC circuit of the present invention;

fig. 5 is a schematic diagram of a hierarchical structure of a liquid crystal display and a backlight assembly according to the present invention.

The reference numerals and names in the figures are as follows:

10-liquid crystal screen, 11-TFT thin film layer, 12-upper glass substrate, 13-lower glass substrate, 14-color filter, 15-liquid crystal box, 20-backlight assembly, 21-LED lamp, 22-backlight substrate, 23-light guide plate, 24-light shading plate, 25-connecting part, 30-FPC circuit, 301-conductive double-sided adhesive tape, 302-soft foam, 31-FPC integrated part, 311-wiring area, 312-first integrated area, 313-second integrated area, 32-FPC extending part, 33-integrated circuit element, 34-FPC connector, 35-LED connecting end, 36-TFT connecting end, 13-TFT connecting end, 37-EMI layer, 38-single-sided tape conductive cloth, 39-high temperature resistant insulating glue, 40-metal frame, 41-OCA optical glue, 42-air hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, in an embodiment of the present invention, a novel lcd display module includes an lcd 10, a backlight assembly 20, an FPC circuit 30 and a metal frame 40, the lcd 10 and the backlight assembly 20 are both disposed in the metal frame 40, the lcd 10 is located at the upper end of the backlight assembly 20, a TFT film layer 11 is disposed in the lcd 10, an LED lamp 21 is disposed in the backlight assembly 20, the FPC circuit 30 includes an FPC integrated portion 31, an FPC extension portion 32, an integrated circuit element 33 and an FPC connector 34, the FPC integrated portion 31 includes a middle wiring region 311 and a first integrated region 312 and a second integrated region 313 disposed at two sides of the wiring region 311, the FPC extension portion 32 is butted with the wiring region 311 of the FPC integrated portion 31, the integrated circuit element 33 is disposed on the first integrated region 312, and the FPC connector 34 is disposed on the second integrated region 313; an LED connecting end 35 is LED out from the first integration region 312, the LED connecting end 35 is electrically connected with the LED lamp 21, a TFT connecting end 36 is LED out from the wiring region 311, and the TFT connecting end 36 is electrically connected with the TFT thin film layer 11; the FPC integrated portion 31 is further provided with an EMI layer 37, the EMI layer 37 is disposed at a position spaced apart from the position corresponding to the integrated circuit element 33 and the FPC connector 34, the FPC integrated portion 31 is further attached with a single-sided tape conductive cloth 38 covering the first integrated area 312 and the wiring area 311, and the FPC integrated portion 31 is bent and attached to the back of the metal frame 40 by the single-sided tape conductive cloth 38.

In the above technical solution, the EMI layer 37 is disposed on the FPC integrated portion 31 to filter noise interference of high frequency components, the integrated circuit device 33 is used to control the TFT film layer 11 and the LED lamp 21 to work to realize a display function, the FPC connector 34 is used to connect the touch screen module, by distributing the integrated circuit elements 33 and the FPC connectors 34 in the first and

second integration areas

312 and 313 on the FPC integration 31 respectively, the FPC extending part 32 is butted with the wiring area 311, so that reasonable wiring can be carried out on the wiring area 311 to avoid electromagnetic interference, the overall layout compactness and the arrangement regularity of the FPC integrated part 31 are effectively improved, single-sided adhesive tape conductive cloth 38 covering the first integrated area 312 and the second integrated area 313 is attached to the FPC integrated part 31, and the FPC integrated part 31 is bent and attached to the back of the metal frame 40 through the single-sided adhesive tape conductive cloth 38; through the design, the FPC circuit 30 can be more compact in the overall structure design, the production and manufacturing difficulty of the FPC circuit 30 can be reduced, and the production speed is promoted, the FPC circuit 30 is bent and attached to the back of the metal frame 40 by arranging the single-sided adhesive tape conductive cloth 38, and the FPC connector 34 is arranged on the second integrated area 313, and the integrated circuit element 33, the LED connecting end 35 and the TFT connecting end 36 are positioned in the first integrated area 312 and the wiring area 311, so that the single-sided adhesive tape conductive cloth 38 only covers the first integrated area 312 and the wiring area 311, the FPC circuit 30 can be stably bent, the conflict with the FPC connector 34 can be avoided, the structure of the single-sided adhesive tape conductive cloth 38 does not need to be designed deliberately to avoid the FPC connector 34 in the production and manufacturing process, the production and manufacturing steps are simplified, the production speed is improved to a certain extent, and the stability of the FPC circuit 30 attached to the back of the metal frame 40 can be secured to facilitate packaging and transportation.

As further shown in fig. 5, for the purpose of display, the liquid crystal display 10 includes an upper glass substrate 12, a lower glass substrate 13, a color filter 14 and a liquid crystal cell 15, wherein the color filter 14 is disposed on the upper glass substrate 12, the liquid crystal cell 15 is disposed between the upper glass substrate 12 and the lower glass substrate 13, the TFT thin film layer 11 is disposed on the lower glass substrate 13, and the TFT thin film layer 11 is correspondingly matched with the liquid crystal cell 15; the backlight assembly 20 is provided with a backlight substrate 22, a light guide plate 23, and a light shielding plate 24, the light guide plate 23 is disposed on the light shielding plate 24, the backlight substrate 22 is disposed on the light guide plate 23, a plurality of LED lamps 21 are disposed, the plurality of LED lamps 21 are uniformly disposed at the rear of the backlight substrate 22, and the LED lamps 21 face the side of the light guide plate 23.

As further shown in fig. 1, the lower glass substrate 13 and the backlight substrate 22 are each provided with a connecting portion 25 extending rearward, and the TFT film layer 11 and the LED lamp 21 are each electrically connected to the FPC circuit 30 through the connecting portion 25; the single-sided tape conductive cloth 38 extends to the connection portion 25 and covers the LED connection terminal 35 and the TFT connection terminal 36; the stability of the FPC circuit 30 is improved, so that the transportation and the packaging are convenient, and the firmness of the connection of the FPC circuit 30 in use is guaranteed.

As further shown in fig. 4, the LED connection terminals 35, the TFT connection terminals 36, and the integrated circuit element 33 are covered and bonded with a high temperature resistant insulating adhesive 39; insulated from the single-sided tape conductive cloth 38.

As further shown in fig. 5, an OCA optical adhesive 41 is disposed between the liquid crystal panel 10 and the backlight assembly 20, and the liquid crystal panel 10 and the backlight assembly 20 are bonded by the OCA optical adhesive 41.

As further shown in fig. 2-3, the metal frame 40 is a back-closed structure, and a plurality of air holes 42 are uniformly arranged at the periphery of the back of the metal frame 40; the air holes 42 are arranged, so that a certain air exhaust effect is achieved between the edges of the liquid crystal screen 10 and the backlight assembly 20 and the metal frame 40, and the phenomenon of flatulence in the process of installing the liquid crystal screen 10 and the backlight assembly 20 is prevented.

As further shown in fig. 1-4, the back of the FPC integrated portion 31 and the FPC extension 32 is further provided with a conductive double-sided tape 301, the end of the FPC extension 32 is led out to form an equipment connection end, and a soft foam 302 is disposed on the equipment connection end.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A novel liquid crystal display module comprises a liquid crystal display, a backlight assembly, an FPC circuit and a metal frame, wherein the liquid crystal display and the backlight assembly are arranged in the metal frame, and the liquid crystal display is positioned at the upper end of the backlight assembly; an LED connecting end is LED out of the first integration area and electrically connected with an LED lamp, a TFT connecting end is LED out of the wiring area, and the TFT connecting end is electrically connected with the TFT thin film layer; the FPC integrated part is also provided with an EMI layer, the EMI layer is arranged in a clearance way at the position corresponding to the integrated circuit element and the FPC connector, single-sided adhesive tape conductive cloth covering the first integrated area and the wiring area is attached to the FPC integrated part, and the FPC integrated part is bent and attached to the back of the metal frame through the single-sided adhesive tape conductive cloth.

2. The novel liquid crystal display module according to claim 1, wherein the liquid crystal display further comprises an upper glass substrate, a lower glass substrate, a color filter and a liquid crystal cell, wherein the color filter is arranged on the upper glass substrate, the liquid crystal cell is arranged between the upper glass substrate and the lower glass substrate, the TFT thin film layer is arranged on the lower glass substrate, and the TFT thin film layer is correspondingly matched with the liquid crystal cell; the backlight assembly further comprises a backlight substrate, a light guide plate and a light shading plate, the light guide plate is arranged on the light shading plate, the backlight substrate is arranged on the light guide plate, the LED lamps are arranged in a plurality, the LED lamps are uniformly arranged at the rear part of the backlight substrate, and the LED lamps face the side part of the light guide plate.

3. The novel liquid crystal display module as claimed in claim 2, wherein the lower glass substrate and the backlight substrate are both provided with a connection portion extending towards the rear portion, and the TFT film layer and the LED lamp are both electrically connected with the FPC circuit through the connection portion; the single-sided tape conductive cloth extends to the connection portion, and covers the LED connection end and the TFT connection end inside.

4. The novel liquid crystal display module according to claim 3, wherein the LED connection terminals, the TFT connection terminals and the integrated circuit element are covered and adhered with high temperature resistant insulating glue.

5. The novel liquid crystal display module according to any one of claims 1-2, wherein an OCA optical cement is disposed between the liquid crystal display and the backlight assembly, and the liquid crystal display and the backlight assembly are bonded by the OCA optical cement.

6. The novel LCD screen display module of claim 5, wherein the metal frame is a back-closed structure, and a plurality of uniformly arranged air holes are formed at the periphery of the back of the metal frame.

7. The novel LCD screen display module of claim 1, wherein the back of the FPC integrated part and the FPC extended part are further provided with a conductive double-sided adhesive tape.

8. The novel liquid crystal display module as claimed in claim 1, wherein the device connection end is led out from the end of the FPC extension, and soft foam is arranged on the device connection end.