TWI564621B - Display panel module and assembling method thereof - Google Patents

Description

Display panel module and assembly method thereof

The invention relates to a display panel module.

A liquid crystal display (LCD) is a flat thin display device composed of a certain number of color or black and white pixels placed in front of a light source or a reflecting surface. The liquid crystal display has low power consumption, so it is favored by engineers and is currently the mainstream display device.

Usually, a flexible printed circuit board is disposed on the liquid crystal display panel, and the flexible printed circuit board is used to electrically connect the internal components and the external power source. When assembling a flexible printed circuit board on a liquid crystal display panel, the flexible printed circuit board is usually folded back and adhered to the liquid crystal display panel, and the assembler will smooth the flexible printed circuit board with a finger during the pasting process to make the flexible printed circuit board Can be attached to the LCD panel.

At the fold of a flexible printed circuit board, it is often easy to have a root bulge, which may result in inconsistent specifications of the entire display panel module, causing problems in subsequent assembly, or component damage during subsequent use. Appropriate smearing can eliminate the root bulging, but even improper smearing can make the flexible printed circuit board just after assembly There is no difference in appearance with proper smearing, which makes it impossible to detect whether the assembler uses the appropriate smearing method.

The invention provides a display panel module for detecting an assembly method of assembling a flexible printed circuit board into a display panel.

According to an embodiment of the invention, a display panel module includes a display panel, a flexible printed circuit board, and a bump. The display panel has opposing first and second major surfaces and a first side abutting the first and second major surfaces. The flexible printed circuit board includes a first block, a detection block, a connection block, and a second block. The first block is at least partially disposed on the first major surface. The detection block is disposed on the first major surface. The connection block connects the first block and the detection block, wherein the detection block includes an inner block away from the first side and an outer block near the first side, which are distinguished by the connection block. The second block is connected to the first block and disposed on the second main surface, and the connection between the first block and the second block is located on the first side. The bump is disposed between the display panel and the inner block.

In one or more embodiments of the present invention, the display panel further includes a second side surface, the second side surface abuts the first main surface, the second main surface and the first side surface, and the flexible printed circuit board further comprises a third block, The three blocks are disposed on the first main surface and connected to the second block, and the connection between the second block and the third block is located on the second side.

In one or more embodiments of the present invention, the flexible printed circuit board further includes a gold finger disposed on the third block.

In one or more embodiments of the present invention, the first main surface is divided into a display area and a non-display area, the non-display area is adjacent to the second side, and at least a portion of the first block and the detection block are disposed on On the non-display area.

In one or more embodiments of the present invention, the display panel module further includes at least one light emitting diode disposed on the second main surface, wherein the second block is electrically connected to the light emitting diode.

In one or more embodiments of the invention, the bumps have a beveled configuration, the height of the beveled structure being lower as it approaches the first side.

In one or more embodiments of the present invention, the display panel includes a plastic frame surrounding the periphery of the display panel, and the bump is disposed on the plastic frame.

In one or more embodiments of the present invention, the display panel module further includes an adhesive member disposed at least partially between the outer block and the first major surface.

According to another embodiment of the present invention, a method for assembling a display panel module includes: providing a second block of a flexible printed circuit board on a second main surface of the display panel; and folding a flexible printed circuit board to make the flexible printed circuit The first block and the detection block of the board are at least partially disposed on the first main surface of the display panel with respect to the second main surface, and the connection of the first block and the second block is located adjacent to the first main surface of the display panel And the first side surface of the second main surface; pressing the first block and the detecting block, if the pressing direction is from the inner block away from the first side of the detecting block toward the outer block near the first side of the detecting block Pressing, the inner block will be jacked up under the inner block and the bump on the first major surface, so that the inner block is carried by the hand, thereby making the detection block relatively far away from the first block, resulting in the first connection The connection block of the block and the detection block is broken; and the connection block is checked for breakage.

In one or more embodiments of the present invention, the assembling method further includes: providing a third block of the flexible printed circuit board on the first main surface, wherein the third block is connected to the second block, and the third area The junction of the block and the second block is located on the second side of the display panel, and the second side abuts the first major surface, the second major surface and the first side.

In one or more embodiments of the present invention, the assembling method further includes: providing a gold finger on the third block.

In one or more embodiments of the present invention, the assembling method further includes: disposing at least one light emitting diode on the second main surface; and electrically connecting the second block and the light emitting diode.

In one or more embodiments of the present invention, if the pressing direction is pressed from the outer block toward the inner block, when pressing to the outer block, a part of the first block and the outer block are fixed by the adhesive member. The first major surface, thus making the relative height of the first block and the detection block substantially constant, and maintaining the connection block connected.

In the above embodiment of the present invention, by providing the detection block of the flexible printed circuit board and the bumps disposed at the corresponding positions, the connection block will remain connected or broken according to the assembly method, so that the display panel module is assembled. After the completion, it can be easily judged whether the assembly method of assembling the flexible printed circuit board on the display panel is appropriate.

100‧‧‧Display panel module

200‧‧‧ display panel

211‧‧‧ first major surface

212‧‧‧ display area

213‧‧‧ non-display area

214‧‧‧Second major surface

215‧‧‧ first side

216‧‧‧ second side

217‧‧‧ plastic frame

300‧‧‧Soft printed circuit board

310‧‧‧First block

320‧‧‧Detection block

321‧‧‧ inside block

322‧‧‧Outer block

330‧‧‧Connection block

340‧‧‧Second block

350‧‧‧ third block

351‧‧‧Gold Finger

360‧‧‧ Connection

400‧‧‧Bumps

401‧‧‧Bevel structure

500‧‧‧bonding parts

600‧‧‧Lighting diode

D‧‧‧ Direction

FIG. 1 is a diagram of a display panel module according to an embodiment of the invention. Top view.

Fig. 2 is a partial view of Fig. 1.

Figure 3 is a cross-sectional view along section line 3 of Figure 1.

FIG. 4 is a flow chart showing a method of assembling a display panel module according to an embodiment of the invention.

FIG. 5 is a bottom view of the display panel module in one step of the assembly process according to an embodiment of the invention.

FIG. 6A illustrates an assembly method of the display panel module.

FIG. 6B illustrates another assembly method of the display panel module.

FIG. 7 is a bottom view of a display panel in accordance with an embodiment of the present invention.

Figure 8 is a bottom view of Figure 1.

FIG. 9 is a top view of a display panel module in accordance with another embodiment of the present invention.

FIG. 10 is a flow chart showing a method of assembling a display panel module according to another embodiment of the present invention.

11 is a top view of a display panel module in one step of an assembly process according to another embodiment of the present invention.

The embodiments of the present invention are disclosed in the following drawings, and the details of However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the present invention, these practices The details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

Please refer to FIG. 1 , which illustrates a top view of a display panel module 100 in accordance with an embodiment of the present invention. The display panel module 100 of the present embodiment includes a display panel 200 and a flexible printed circuit board 300.

Fig. 2 is an enlarged view of a portion 2 of Fig. 1. Figure 3 is a cross-sectional view along line 3 of Figure 2. As shown in FIG. 2 and FIG. 3 , the display panel module 100 further includes a bump 400 . The display panel 200 has a first main surface 211 and a second main surface 214 opposite to each other and a first side 215 adjacent to the first main surface 211 and the second main surface 214. The flexible printed circuit board 300 includes a first block 310, a detection block 320, a connection block 330, and a second block 340. The first block 310 is at least partially disposed on the first major surface 211. The detection block 320 is disposed on the first major surface 211. The connection block 330 connects the first block 310 and the detection block 320, wherein the detection block 320 includes an inner block 321 away from the first side 215 and an outer block near the first side 215, which are distinguished by the connection block 330. 322. The second block 340 is connected to the first block 310 and disposed on the second major surface 214 , and the junction 360 of the first block 310 and the second block 340 is located on the first side 215 . The bump 400 is disposed between the display panel 200 and the inner block 321 .

FIG. 4 is a flow chart showing a method of assembling the display panel module 100 according to an embodiment of the invention. FIG. 5 is a bottom view of the display panel module 100 in one step of the assembly process according to an embodiment of the invention. FIG. 6A illustrates an assembly method of the display panel module 100. As shown in FIG. 4 and FIG. 5, step 30 is for the second main display panel 200. A second block 340 of flexible printed circuit board 300 is disposed on surface 214. As shown in FIG. 2, FIG. 4 and FIG. 6A, step 40 is to fold the flexible printed circuit board 300 such that the first block 310 and the detection block 320 of the flexible printed circuit board 300 are at least partially disposed on the display panel. 200 is opposite to the first major surface 211 of the second major surface 214, and the junction 360 of the first block 310 and the second block 340 is located adjacent to the first major surface 211 and the second major surface 214 of the display panel 200. One side 215.

Step 50 is to press the first block 310 and the detection block 320. In general, in step 50, the assembler should be pressed from the position of the first block 310 near the first side 215 in a direction away from the first side 215 to avoid the first block 310 being near the first side 215. The position creates a root bulge. In contrast, in step 50, if the assembler is pressed from the position of the first block 310 away from the first side 215 toward the first side 215, the position of the first block 310 near the first side 215 is easy. Produce a root bulge.

As shown in FIG. 6A, since the assembler presses the first block 310 and the detection block 320 together in step 50, if the assembler is closer to the first position from the first block 310 away from the first side 215 When the direction of the side surface 215 is pressed, for the detection block 320, the pressing direction will be pressed by the inner block 321 toward the outer block 322, which causes the inner block 321 to be located below the inner block 321 and the first main surface 211. The bumps 400 are brought up, thereby causing the detection block 320 to be relatively far from the first block 310, causing the connection block 330 connecting the first block 310 and the detection block 320 to break.

As shown in FIG. 6B, the display panel module 100 further includes a bonding The component 500 is disposed at least partially between the outer block 322 and the first major surface 211. If the assembler is pressed from the position of the first block 310 near the first side 215 toward the direction away from the first side 215, the pressing direction will be pressed by the inner block 321 toward the outer block 322 for the detection block 320. When pressed to the outer block 322, a portion of the first block 310 and the outer block 322 will be fixed to the first major surface 211 by the adhesive member 500, thus causing the relative height of the first block 310 and the detection block 320. Substantially unchanged and the connection block 330 remains connected.

Therefore, in step 60, the quality control personnel can determine whether the assembler has pressed the first block 310 in the correct manner by checking whether the connection block 330 is broken.

By providing the detection block 320 of the flexible printed circuit board 300 and the bumps 400 disposed at corresponding positions, the connection block 330 will remain connected or broken depending on the assembly method. When the first block 310 and the detection block 320 are pressed and smoothed, if the pressing direction is from the inner side toward the outer side (this is an improper assembly method, the root drum of the flexible printed circuit board 300 may be caused to be reversed) The inner block 321 will be brought up by the bump 400, thereby causing the detection block 320 to be relatively far from the first block 310 and causing the connection block 330 to break. If the pressing direction is from the outer side toward the inner side (this is an appropriate assembly method, the root portion of the flexible printed circuit board 300 can be eliminated), that is, pressed by the outer block 322 toward the inner block 321 When the outer block 322 is reached, a portion of the first block 310 and the outer block 322 will be fixed to the first major surface 211 by the adhesive member 500, so even if it is pressed to the bump When the inner block 321 is located above 400, only the inner block 321 in the detecting block 320 just above the bump 400 is taken up by the bump 400, so that the first block 310 connected by the connecting block 330 is The relative height of the portion of the detection block 320 is substantially unchanged, and thus the connection block 330 will remain connected.

In this way, after the display panel module 100 is assembled, it is easy to determine whether the assembly method of assembling the flexible printed circuit board 300 on the display panel 200 is appropriate, and it is found that the assembly method is inappropriate, as long as the connection block 330 is broken. When you make an adjustment, you can make it instantly.

Specifically, the detection block 320 is connected to the second block 340, and the connection 360 of the detection block 320 and the second block 340 is located at the first side 215.

Connection block 330 can be painted in a vivid color such as red. Thus, when the connection block 330 is not broken, the connection block 330 can be easily found on the flexible printed circuit board 300, and can be easily perceived when the connection block 330 is broken, thereby simplifying the inspection step and making the inspection difficult.

No adhesive member 500 is disposed under the inner block 321 . As such, when the connection block 330 is broken, the inner block 321 will be detached from the display panel 200 and lifted up. Therefore, at the time of inspection, as long as the inner block 321 is observed to be lifted, it can be judged whether or not the connecting block 330 is broken, and the difficulty of the inspection step is thus lowered.

The bump 400 can have a beveled structure 401 having a lower height as it approaches the first side 215. As such, when the pressing direction is from the outer side toward the inner side, only the inner block 321 located above the side of the bump 400 away from the first side surface 215 is carried by the bump 400 at the bump 400. The relative height of the inner block 321 above the side closer to the first side 215 and the first block 310 will be substantially unchanged, enabling the connection block 330 to remain more securely connected.

As shown in FIG. 2 and FIG. 3 , the display panel 200 may include a plastic frame 217 surrounding the periphery of the display panel 200 , and the bump 400 is disposed on the plastic frame 217 .

FIG. 7 is a bottom view of the display panel 200 in accordance with an embodiment of the present invention. FIG. 8 is a bottom view of the display panel module 100 of FIG. 1. As shown in FIG. 7 and FIG. 8 , the display panel module 100 further includes at least one light emitting diode 600 , wherein the second block 340 is electrically connected to the light emitting diode 600 .

FIG. 9 is a top view of a display panel module 100 in accordance with another embodiment of the present invention. As shown in FIG. 3 and FIG. 9 , the display panel 200 further includes a second side 216 adjacent to the first main surface 211 , the second main surface 214 and the first side 215 , and the flexible printed circuit board 300 The third block 350 is disposed. The third block 350 is disposed on the first main surface 211 and connected to the second block 340. The connection between the second block 340 and the third block 350 is located on the second side 216.

Specifically, the flexible printed circuit board 300 further includes a gold finger 351 disposed on the third block 350. It should be understood that the specific embodiments of the flexible printed circuit board 300 are merely illustrative and are not intended to limit the present invention. Those having ordinary knowledge in the technical field of the present invention should flexibly select a flexible printed circuit board according to actual needs. A specific implementation of 300.

Specifically, the first main surface 211 can be divided into the display area 212 and The non-display area 213 is adjacent to the second side 216, and at least a portion of the first block 310 and the detection block 320 are disposed on the non-display area 213.

As shown in FIG. 8 and FIG. 9 , the display panel module 100 can be a combination of a liquid crystal panel and a backlight module, wherein the backlight module can be a side-lit backlight module. Specifically, the light emitting diode 600 is adjacent to the second side surface 216. In addition, the light emitting diode 600 emits light toward the direction D, thereby projecting light toward a region corresponding to the display area 212.

FIG. 10 is a flow chart showing a method of assembling the display panel module 100 according to another embodiment of the present invention. 11 is a top view of the display panel module 100 in one step of the assembly process in accordance with another embodiment of the present invention. The assembly method of the present embodiment is the display panel module 100 corresponding to FIG. As shown in FIG. 10 and FIG. 11 , step 10 is to provide a third block 350 of the flexible printed circuit board 300 on the first main surface 211 , wherein the third block 350 is connected to the second block 340 . As shown in FIG. 5, FIG. 10, and FIG. 11, step 20 is to reflex the flexible printed circuit board 300 to the second side 216 of the display panel 200 to connect the third block 350 to the second block 340. Located at a second side 216 of the display panel 200, the second side 216 abuts the first major surface 211, the second major surface 214, and the first side 215. Steps 30 to 60 are the same as steps 30 to 60 in FIG. 4, and therefore will not be described again.

The assembling method of the display panel module 100 further includes the step of: providing a gold finger 351 on the third block 350.

As shown in FIG. 5 and FIG. 7, the group of the display panel module 100 The loading method further includes the steps of: disposing at least one light emitting diode 600 in the display panel module 100, and then electrically connecting the second block 340 and the light emitting diode 600.

In the above embodiment of the present invention, by providing the detecting block 320 of the flexible printed circuit board 300 and the bump 400 disposed at the corresponding position, the connecting block 330 will remain connected or broken according to the assembly method, so that the display is displayed. After the panel module 100 is assembled, it can be easily judged whether the assembly method of assembling the flexible printed circuit board 300 on the display panel 200 is appropriate.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100‧‧‧Display panel module

200‧‧‧ display panel

211‧‧‧ first major surface

214‧‧‧Second major surface

215‧‧‧ first side

216‧‧‧ second side

217‧‧‧ plastic frame

300‧‧‧Soft printed circuit board

320‧‧‧Detection block

321‧‧‧ inside block

322‧‧‧Outer block

340‧‧‧Second block

360‧‧‧ Connection

400‧‧‧Bumps

401‧‧‧Bevel structure

500‧‧‧bonding parts

Claims (13)

A display panel module comprising: a display panel having a first main surface and a second main surface, and a first side adjacent to the first main surface and the second main surface; a flexible printed circuit The board includes: a first block disposed at least partially on the first main surface; a detecting block disposed on the first main surface; a connecting block connecting the first block and the detecting a block, wherein the detection block includes an inner block away from the first side and an outer block adjacent to the first side, and a second block connecting the first a block disposed on the second major surface, wherein a junction of the first block and the second block is located on the first side; and a bump disposed on the display panel and the inner block between. The display panel module of claim 1, wherein the display panel further comprises a second side, the second side abutting the first main surface, the second main surface and the first side, the flexible printed circuit board Further comprising a third block, the third block is disposed on the first main surface and connected to the second block, and the connection between the second block and the third block is located on the second side. The display panel module of claim 2, wherein the flexible printed circuit board further comprises: A gold finger is disposed on the third block. The display panel module of claim 2, wherein the first main surface is divided into a display area and a non-display area, the non-display area is adjacent to the second side, and at least part of the first block is And the detection block is disposed on the non-display area. The display panel module of claim 1, further comprising: at least one light emitting diode, wherein the second block is electrically connected to the light emitting diode. The display panel module of claim 1, wherein the bump has an oblique structure, and the height of the bevel structure is lower as it is closer to the first side. The display panel module of claim 1, wherein the display panel comprises: a plastic frame surrounding the periphery of the display panel, the bump being disposed on the plastic frame. The display panel module of claim 1, further comprising: a bonding member disposed at least partially between the outer block and the first main surface. A method for assembling a display panel module includes: disposing a second block of a flexible printed circuit board on a second main surface of a display panel; and folding the flexible printed circuit board to make the flexible printed circuit board a first block and a detecting block are at least partially disposed on a first major surface of the display panel relative to the second major surface, and a connection between the first block and the second block is located at the display The panel is adjacent to a first side surface of the first main surface and the second main surface; pressing the first block and the detecting block, if the pressing direction is from an inner side of the detecting block away from the first side The block is pressed toward an outer block of the detection block adjacent to the first side, and the inner block is to be carried under the inner block and a bump on the first main surface, thereby enabling the detection The block is relatively far from the first block, causing a connection between the first block and a detection block of the detection block to be broken; and checking whether the connection block is broken. The assembly method of claim 9, further comprising: disposing a third block of the flexible printed circuit board on the first main surface, wherein the third block is connected to the second block, and the The junction of the third block and the second block is located on a second side of the display panel, the second side abutting the first main surface, the second main surface and the first side. The assembly method of claim 10, further comprising: setting a gold finger on the third block. The assembling method of claim 9, further comprising: providing at least one light emitting diode in the display panel module; and electrically connecting the second block and the light emitting diode. The assembly method of claim 9, wherein if the pressing direction is pressed by the outer block toward the inner block, when the outer block is pressed, a portion of the first block and the outer block are to be The adhesive member is fixed to the first major surface such that the relative height of the first block and the detection block is substantially constant and the connection block remains connected.