TWI446228B - Touch-control display device and electronic apparatus - Google Patents

Description

Touch display device and electronic device

The present invention relates to a touch display device and an electronic device.

In recent years, the touch display device has gradually increased the market share of the touch display device with its user-friendly operation and convenient control. At the same time, people are increasingly demanding thin and light touch devices, and flexible circuit boards are widely used in many touch display devices that require light weight or space constraints.

Please refer to FIG. 1 , which is an exploded perspective view of a prior art touch display device. The touch display device 1 includes a touch panel 11 , a liquid crystal panel 12 , a backlight module 13 , a first flexible circuit board 101 , a second flexible circuit board 102 , and a third flexible circuit board 103 . One end of the first flexible circuit board 101 is electrically connected to the touch panel 11 , and the other end is provided with a plurality of first gold fingers 104 . The second flexible circuit board 102 is a double-sided flexible circuit board, and includes a first side 108 and a second side 109, and one end thereof is electrically connected to the liquid crystal panel 12, and the other end is connected to a system (not shown). The first side 108 is provided with a plurality of second gold fingers 106 corresponding to the structure of the plurality of first gold fingers 104. The second side surface 109 is provided with a plurality of third gold fingers 107, and the plurality of second gold fingers 106 and the plurality of third gold fingers 107 are generally disposed in a direction relatively perpendicular. One end of the third flexible circuit board 103 is coupled to the backlight module 13 , and the other end is provided with a plurality of fourth gold fingers 105 . The plurality of fourth gold fingers 105 correspond to the structure of the plurality of third gold fingers 107.

Please refer to FIG. 2 together, FIG. 2 is a group of the touch display device 1 shown in FIG. Schematic diagram of the structure after installation. The touch panel 11 , the liquid crystal panel 12 , and the backlight module 13 are sequentially stacked. The first gold finger 104 of the first flexible circuit board 101 is soldered to the second gold finger 106 of the second flexible circuit board 102 for transmitting the touch signal of the touch panel 11 . The second flexible circuit board 102 is configured to transmit the display signal of the liquid crystal panel 12. The fourth gold finger 105 of the third flexible circuit board 103 is in position welding with the third gold finger 107 of the second flexible circuit board 102 for transmitting the light source signal of the backlight module 13. The touch signal and the light source signal are respectively sent into the second flexible circuit board 102 by the first flexible circuit board 101 and the third flexible circuit board 103, and the display signal of the liquid crystal panel 12 is sent to the system. .

The touch display device 1 uses the first flexible circuit board 101, the second flexible circuit board 102, and the third flexible circuit board 103 to transmit various signals, and the number of flexible circuit boards is increased, which not only increases the cost, but also is assembled. It also consumes more manpower and time.

In addition, when the touch display device 1 is assembled, the plurality of first gold fingers 104 of the first flexible circuit board 101 are in position-aligned with the plurality of second gold fingers 106 of the first side surface 108; the third flexible circuit board 103 The plurality of fourth gold fingers 105 are in position welding with the plurality of third gold fingers 107 of the second side surface 109. Therefore, the first flexible circuit board 101 and the third flexible circuit board 103 are separately soldered by two hand soldering processes. On the two sides of the second flexible circuit board 102. Moreover, since the direction of the second gold finger 106 on the two sides of the second flexible circuit board 102 is perpendicular to the direction of the third gold finger 107, the two-way hand soldering process is required, which not only increases the manpower, but also makes the hand The drawing process takes a long time and costs are high.

At the same time, the touch signal of the touch panel 11 and the light source signal of the backlight module 13 are respectively transmitted to the second flexible circuit board 102 by the first flexible circuit board 101 and the third flexible circuit board 103. The second flexible circuit board 102 needs to adopt a double-sided flexible circuit board, so that the first flexible circuit board 101 and the third flexible circuit board 103 are respectively combined on both sides thereof. However, the cost of the double-sided flexible circuit board is high, resulting in a high cost of the touch display device 1.

In view of this, it is necessary to provide a touch display device with low cost and relatively low process time.

A touch display device includes a first display component, a second display component, a third display component, a first flexible circuit board, and a second flexible circuit board. The first display component and the second display The second flexible circuit board is electrically connected to the second display component, and the first flexible circuit board includes a first connecting portion, a second connecting portion, and a third connecting portion. And a plurality of light sources, wherein the plurality of light sources are electrically connected to the second connecting portion, the first connecting portion is electrically connected to the first display component, and the plurality of light sources are embedded on the second connecting portion The third connecting portion is electrically connected to the second flexible circuit board.

A touch display device includes a first display component, a second display component, a third display component, a first flexible circuit board, a second flexible circuit board, and a plurality of light sources. The plurality of light sources are embedded in the third display group The first flexible circuit board is electrically connected to the first display component, and the other end is electrically connected to the plurality of light sources for simultaneously transmitting the first signal of the first display component and the second signal of the plurality of light sources. The second flexible circuit board is electrically connected to the second display component for transmitting the third signal from the second display component. The first signal and the second signal are converged to the second flexible circuit board by the first flexible circuit board.

An electronic device comprising: at least three electronic components stacked on each other, comprising a first electronic component, a second electronic component, and a third electronic component; a display component; a first connector, the first connection The device is electrically connected to an electronic component; and a second connector is used for electrically connecting the second and third electronic components, and electrically connecting the second and third electronic components to The first connector is mounted to the display component.

Compared with the prior art, the first flexible circuit board of the touch display device of the present invention has three connecting portions, the first connecting portion is connected to the first display component, and the plurality of light sources on the second connecting portion are connected to the third display. And transmitting, by the third connecting portion, the signals of the first and second display components to the second flexible circuit board, thereby saving a flexible circuit board, not only reducing the area of the system, but also reducing the cost. Secondly, the touch display device of the present invention can realize the electrical connection between the first flexible circuit board and the second flexible circuit board by using a single hand soldering process, and the manufacturing process is simple, which is beneficial to reducing the production cost. Finally, the second flexible circuit board is a single-sided flexible circuit board, which also reduces production costs.

Compared with the prior art, the electronic device of the present invention uses the first connector And the second connecting member can output the signals of the three electronic components arranged in sequence, and the connection port is simple, the number of the connecting members is reduced, and the area of the device is reduced.

Please refer to FIG. 3 , which is an exploded perspective view of a first embodiment of the touch display device of the present invention. The touch display device 2 includes a touch panel 21, a liquid crystal panel 22, a backlight module 23, a first flexible circuit board 201, and a second flexible circuit board 202. The touch panel 21 and the liquid crystal The panel 22 and the backlight module 23 may be referred to as display components.

The first flexible circuit board 201 includes a first connecting portion 208 , a second connecting portion 209 , a third connecting portion 210 , a plurality of light sources 205 , and a cutout 206 . The first connecting portion 208 and the second connecting portion 209 are respectively disposed at opposite ends of the first flexible circuit board 201. The first connecting portion 208 and the second connecting portion 209 are both rectangular, and one end of the same direction is connected to each other. The third connecting portion 210 is formed by extending the first connecting portion 208 to the second connecting portion 209. The gap 206 is located in the middle of the first flexible circuit board 201, and is connected to one end of the first connecting portion 208, the second connecting portion 209, the first connecting portion 208, and the second connecting portion 209 in the same direction. The third connecting portion 210 is formed in a circle. Further, the first connecting portion 208, the second connecting portion 209, and the third connecting portion 210 are located in the same plane. The second connecting portion 209 is soldered with a plurality of light sources 205.

The first flexible circuit board 201 is pressed into the end of the touch panel 21 by the first connecting portion 208 to electrically connect the first flexible circuit board 201 and the touch panel 21 . The third connecting portion 210 is provided with a plurality of first golden hands The first gold finger 203 is used as the touch signal of the touch panel 21 and the signal output end of the light source 205.

The second flexible circuit board 202 is a single-sided flexible circuit board including a first side 207 and a second side 211 opposite to each other. The first side surface 207 is provided with a plurality of second gold fingers 204 corresponding to the structure of the first gold fingers 203. The second flexible circuit board 202 is electrically connected to the liquid crystal panel 22 at one end and electrically connected to a system (not shown) at the other end.

The plurality of light source receiving recesses 212 are disposed at one end of the backlight module 23 , and the plurality of light source receiving recesses 212 can receive the plurality of light sources 205 .

4 and FIG. 5, FIG. 4 is a schematic structural view of the touch display device 2 shown in FIG. 3, and FIG. 5 is a side view of the structure of the touch display device 2 shown in FIG. When assembled, the first connecting portion 208 of the first flexible circuit board 201 is pressed against the touch panel 21 by an anisotropic conductive film (ACF). Then, the plurality of light sources 205 of the second connecting portion 209 are respectively disposed in the corresponding plurality of light source receiving recesses 212 at one end of the backlight module 23, and the second connecting portion 209 is combined with the backlight module 23. Then, the touch panel 21 , the liquid crystal panel 22 , and the backlight module 23 are sequentially stacked, and the second flexible circuit board 202 is inserted into the gap 206 in the middle of the first flexible circuit board 201 . Finally, the plurality of first gold fingers 203 are aligned with the plurality of second gold fingers 204 of the first side surface 207, and the plurality of first gold fingers 203 and the plurality of second gold fingers 204 are soldered by hand welding. Together, the electrical properties of the first flexible circuit board 201 and the second flexible circuit board 202 are achieved. The connection between the touch signal of the touch panel 21 and the signal of the light source 205 is simultaneously transferred to the second flexible circuit board 202 and transmitted to the system by the second flexible circuit board 202.

The touch display device 2 can simultaneously transmit the touch signal of the touch panel 21 and the signal of the light source 205 to the second flexible circuit board 202 by using the first flexible circuit board 201. Saving a flexible circuit board not only reduces the area of the touch display device, but also reduces the cost of the touch display device.

In addition, the first flexible circuit board 201 and the second flexible circuit board 202 can be electrically connected by the plurality of first gold fingers 203 and the plurality of second gold fingers 204 corresponding thereto. In the welding process, the one-shot welding process in one direction is required, which not only reduces the manufacturing process, but also saves manpower and man-hours when assembling the touch display device 2, and directly reduces the cost of producing the touch display device 2. .

Finally, the first flexible circuit board 201 is electrically connected to the second flexible circuit board 202, as long as the second plurality of gold fingers 204 of the first side 207 of the second flexible circuit board 202 and the first flexible circuit board The plurality of first gold fingers 203 of the third connecting portion 209 of 201 are aligned and soldered. Therefore, the second flexible circuit board 202 can adopt a single-sided flexible circuit board, which also reduces the manufacturing cost of the touch display device 2.

Please refer to FIG. 6 , which is an exploded perspective view of a second embodiment of the touch display device of the present invention. The touch display device 3 of the present embodiment is similar in structure to the touch display device 2 , and the main difference is that the third connecting portion 310 is formed by the second connecting portion 309 extending toward the first connecting portion 308 . Second softness The circuit board 302 includes a first side 307 and a second side 311 opposite to each other. The plurality of second gold fingers 304 are disposed on the second side 311 of the second flexible circuit board 302.

Referring to FIG. 7 and FIG. 8 , FIG. 7 is a schematic structural view of the touch display device 3 shown in FIG. 6 , and FIG. 8 is a structural side view of the touch display device 3 shown in FIG. 7 . The touch display device 3 is basically the same as the touch display device 2, and the main difference is that the first gold finger 303 of the third connecting portion 310 and the first side 307 of the second flexible circuit board 302 are 307. The plurality of second gold fingers 304 opposite the second side 311 are aligned.

The present invention is not limited to the above embodiments. For example, the display component can also be a touch panel, an electrowetting panel, and a backlight module. The first flexible circuit board and the second flexible circuit board can be combined. With the hand soldering process, connectors can also be used for connection. The flexible circuit board can also be replaced by a cable or other connector. The present invention can also be other electronic devices that are sequentially stacked, and the display components connected by the flexible circuit boards can also be other electronic components. The light source can be a Light Emitting Diode (LED).

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

2, 3‧‧‧ touch display device

21‧‧‧ touch panel

22‧‧‧LCD panel

23‧‧‧Backlight module

201, 301‧‧‧ first flexible circuit board

202, 302‧‧‧Second flexible circuit board

203, 303‧‧‧ first golden finger

204, 304‧‧‧ second golden finger

205‧‧‧Light source

206, 306‧‧ ‧ gap

207, 307‧‧‧ first side

208, 308‧‧‧ first connection

209, 309‧‧‧second connection

210, 310‧‧‧ third connection

211, 311‧‧‧ second side

212‧‧‧Light source receiving groove

1 is an exploded perspective view of a prior art touch display device.

FIG. 2 is a schematic structural view of the touch display device shown in FIG. 1 after assembly.

3 is an exploded perspective view of a first embodiment of the touch display device of the present invention.

FIG. 4 is a schematic structural view of the touch display device shown in FIG. 3 after assembly.

FIG. 5 is a side view showing the structure of the touch display device shown in FIG. 4 after assembly.

6 is an exploded perspective view of a second embodiment of the touch display device of the present invention.

FIG. 7 is a schematic structural view of the touch display device shown in FIG. 6 after assembly.

FIG. 8 is a side view showing the structure of the touch display device shown in FIG. 7 after assembly.

21‧‧‧ touch panel

22‧‧‧LCD panel

23‧‧‧Backlight module

201‧‧‧First flexible circuit board

202‧‧‧Second flexible circuit board

203‧‧‧first golden finger

204‧‧‧second golden finger

205‧‧‧Light source

Claims (23)

A touch display device includes a first display component, a second display component, a third display component, a first flexible circuit board, and a second flexible circuit board. The first display component and the second display The second flexible circuit board is electrically connected to the second display component, and the first flexible circuit board includes a first connecting portion, a second connecting portion, and a third connecting portion. And a plurality of light sources, wherein the plurality of light sources are electrically connected to the second connecting portion, the first connecting portion is electrically connected to the first display component, and the plurality of light sources are embedded on the second connecting portion The third connecting portion is electrically connected to the second flexible circuit board. The touch display device of claim 1, wherein the first display component is a touch panel, the second display component is a liquid crystal panel, and the third display component is a backlight module. The touch display device of claim 1, wherein the first display component is a touch panel, the second display component is an electrowetting panel, and the third display component is a backlight module. The touch display device of claim 1, wherein the first connecting portion and one end of the second connecting portion are connected to each other in the same direction. The touch display device of claim 4, wherein the third connecting portion is formed by the first connecting portion extending toward the second connecting portion. The touch display device of claim 5, wherein the first flexible circuit board further comprises a slit at the middle thereof, The first connecting portion, the second connecting portion, the first connecting portion and the second connecting portion are connected to the third connecting portion. The touch display device of claim 4, wherein the third connecting portion is formed by the second connecting portion extending toward the first connecting portion. The touch display device of claim 7, wherein the first flexible circuit board further comprises a cutout at the middle portion, the first connection portion, the second connection portion, and the first connection And connecting the one end of the second connecting portion in the same direction to the third connecting portion. The touch display device of claim 1, wherein the second flexible circuit board is a single-sided flexible circuit board. The touch display device of claim 1, wherein the third connecting portion is electrically connected to a surface of the second flexible circuit board adjacent to the first display component. The touch display device of claim 1, wherein the third connecting portion is electrically connected to a surface of the second flexible circuit board adjacent to the third display component. The touch display device of claim 10, wherein the third connecting portion and the second flexible circuit board are connected by hand soldering. The touch display device of claim 10, wherein the third connection portion is connected to the second flexible circuit board. The way the device is connected. A touch display device includes: a first display component; a second display component; a third display component; a plurality of light sources, the plurality of light sources are embedded in the third display component; a first flexible circuit board, the The first flexible circuit board is electrically connected to the first display component, and the other end is electrically connected to the plurality of light sources for simultaneously transmitting the first signal of the first display component and the second signal of the plurality of light sources; and a second a flexible circuit board, the second flexible circuit board is electrically connected to the second display component for transmitting a third signal from the second display component; wherein the first signal and the second signal are used by the first softness The circuit board sinks to the second flexible circuit board. The touch display device of claim 14, wherein the first display component is a touch panel, the second display component is a liquid crystal panel, and the third display component is a backlight module. The touch display device of claim 14, wherein the first display component is a touch panel, the second display component is an electrowetting panel, and the third display component is a backlight module. The touch display device of claim 14, wherein the first flexible circuit board comprises a first connecting portion, a second connecting portion and a third connecting portion. The touch display device of claim 17, wherein The first connecting portion is electrically connected to one end of the first display component, and the second connecting portion is located at one end of the first flexible circuit board electrically connected to the light source, the third connecting portion and the first connecting portion Two flexible circuit boards are electrically connected. The touch display device of claim 17, wherein the first connecting portion and one end of the second connecting portion in the same direction are connected to each other. The touch display device of claim 19, wherein the third connecting portion is formed by the first connecting portion extending toward the second connecting portion. The touch display device of claim 20, wherein the first flexible circuit board further comprises a cutout at the middle portion, the cutout being the first connection portion, the second connection portion, the first A connection portion and a connection portion of the second connection portion in the same direction are formed to be surrounded by the third connection portion. The touch display device of claim 19, wherein the third connecting portion is formed by the second connecting portion extending toward the first portion. The touch display device of claim 22, wherein the first flexible circuit board further comprises a cutout at the middle portion, the cutout being the first connection portion, the second connection portion, the first A connection portion and a connection portion of the second connection portion in the same direction are formed to be surrounded by the third connection portion.