TWI521395B - Touch-controlled electronic apparatus and method for fabricating the touch-controlled electronic apparatus thereof - Google Patents

Description

Touch electronic device and method of assembling the same

The invention relates to an electronic device and a method for assembling the same, in particular to an electronic device for coating a printing material on the reverse side of the touch panel and covering the relative position of the virtual button icon to improve brightness unevenness. The problem.

In today's consumer electronics market, portable electronic products such as personal digital assistants (PDAs), mobile phones and PDA phones have been widely used with touch panels as their data communication. Interface tool. Since the design of electronic products is currently in the direction of light, thin, short and small, there is not enough space on the product to accommodate traditional input devices such as keyboards and mice, especially driven by the demand for tablet PCs with humanized design. Display devices with touch panels have gradually become one of the key components of various electronic products.

Taking a capacitive touch panel as an example, the touch is sensed by a conductive pattern on the touch panel (for example, a conductive pattern formed of indium tin oxide (ITO) or indium zinc oxide (IZO)). The amount of capacitance change on the panel is scanned along with the wires in a row-by-row and column-by-column manner to obtain coordinate information of the X-axis and the Y-axis. However, these wires are usually pulled to the lowermost area of the touch panel, that is, the placement area of the virtual buttons, so when the light-emitting diode below the virtual button icon emits a light to the virtual button icon, The problem of uneven brightness due to the relationship of these wires causes a phenomenon of light leakage.

Therefore, how to solve the above problem of uneven brightness and avoid the occurrence of light leakage is one of the important topics in the design field.

Accordingly, it is an object of the present invention to provide an electronic device and related assembly method to solve the above problems.

The invention discloses an electronic device comprising: a cover plate, a virtual button icon, a touch panel, a printing material and a light source. The cover panel has a first plane and a second plane relative to the first plane, and the first plane is divided into a first area that is a virtual button and a second area that is used to display an image. The virtual button icon is disposed on the second plane of the cover panel and is located at a relative position of the first area. The touch panel has a third plane and a fourth plane relative to the third plane, and the third plane is divided into a third area as a virtual button and a fourth area for displaying an image and receiving a touch signal. The printing material is coated on the fourth plane of the touch panel and covers at least the relative position of the third area. The light source is disposed on one side of the printed material and above the relative position of the virtual button icon. The second plane of the cover plate is in contact with and adhered to the three planes of the touch panel, and the first area covers the third area, and the second area is covered by the first area. Above the four areas.

In one embodiment, the luminance component L, the first chrominance component a, and the second chrominance component b of the color of the printed material are a predetermined interval from the illumination source and the printed material, and the illumination source The intensity of the light is related. In another embodiment, the luminance component L, the first chrominance component a, and the second chrominance component b of the color of the printed material are equal to 79.5±2, 3.3±1, and 10.5±1, respectively.

The invention further discloses a method for assembling an electronic device, the method comprising the steps of: providing a cover plate having a first plane and a second plane relative to the first plane, and the first plane is divided into virtual buttons a first area and a second area for displaying an image; a virtual button icon is disposed on the second plane of the cover board and located at a relative position of the first area; a touch panel is provided, and the touch panel has a first a third plane and a fourth plane relative to the third plane, and the third plane is divided into a third area as a virtual button and a fourth area for displaying an image and receiving a touch signal; coating a printing material on a fourth plane of the touch panel and covering at least a relative position of the third area; a light source disposed on one side of the printing material and located above a relative position of the virtual button icon; and setting the cover board On the touch panel, the second plane of the cover panel is in contact with and bonded to the three planes of the touch panel, and the first area is over the third area. And the second region based overlies the fourth region.

Please refer to FIG. 1 , FIG. 2 and FIG. 3 together. FIG. 1 is a cross-sectional view showing an embodiment of an electronic device 100 according to the present invention, and FIG. 2 (including FIG. 2A and FIG. 2B ) is the first 1 is a schematic view of the first plane 111 and the second plane 112 of the cover plate 110, and FIG. 3 (including FIG. 3A and FIG. 3B) is the third plane 131 of the touch panel 130 shown in FIG. A schematic view of the fourth plane 132. In FIG. 1 , the electronic device 100 includes, but is not limited to, a cover plate 110 , a virtual key icon 120 , a touch panel 130 , a printing material 140 , and a light source 150 . The cover panel 110 has a first plane 111 and a second plane 112 opposite to the first plane 111, and the touch panel 130 also has a third plane 131 and a fourth plane 132 relative to the third plane 131, and the cover board The second plane 112 of the 110 is in contact with and bonded to the third plane 131 of the touch panel 130 by an optical clear adhesive (OCA) 160.

As shown in FIG. 2A, the first plane 111 (front side) of the cover panel 110 is divided into a first area 111A as a virtual key (for example, Home, Menu) and a second area 111B for displaying an image. As shown in FIG. 2B, the second plane 112 (reverse surface) of the cover panel 110 is also divided into two regions 112A, 112B, wherein the region 112A of the second plane 112 corresponds to the first region 111A of the first plane 111, and The region 112B of the two planes 112 corresponds to the second region 111B of the first plane 111.

As shown in FIG. 3A, the third plane 131 (front side) of the touch panel 130 is divided into a third area 131A as a virtual button and a fourth area 131B for displaying an image and receiving a touch signal. As shown in FIG. 3B, the fourth plane 132 (reverse surface) of the touch panel 130 is also divided into two regions 132A, 132B, wherein the region 132A of the fourth plane 132 corresponds to the third region 131A of the third plane 131, and The area 132B of the fourth plane 132 corresponds to the fourth area 131B of the third plane 131. As shown in FIG. 2 and FIG. 3 , when the cover plate 110 is in contact with and adhered to the touch panel 130 , the first region 111A of the cover plate 110 covers the third region 131A of the touch panel 130 . The second region 111B of the cover plate 110 covers the fourth region 131B of the touch panel 130.

It should be noted that, in this embodiment, the third area 131A and the fourth area 131B of the touch panel 130 adopt the same touch panel (which may be a capacitive touch panel or a resistive touch panel). It may include a plurality of conductive patterns 310 (for example, a conductive pattern composed of indium tin oxide (ITO) or indium zinc oxide (IZO)) and a plurality of wires 320, wherein each of the wires 320 is electrically connected Conductive patterns located in the same row (or the same column) to obtain coordinate information of the X-axis and the Y-axis.

Referring to FIG. 1 , the virtual button icon 120 is disposed on the second plane 112 of the cover panel 110 and located at a relative position of the first region 111A (as shown in FIG. 2, that is, the region 112A). The printing material 140 is coated on the fourth plane 132 of the touch panel 130 and covers at least the relative position of the third area 131A (as shown in FIG. 3, that is, the area 132A). The illumination source 150 is disposed on one side of the printing material 140 and above the relative position of the virtual button icon 120. That is, when the light source 150 emits a light, the light will sequentially penetrate the printing material 140, the touch panel 130, the optical transparent adhesive 160, the virtual button icon 120, and the cover plate 110, since these components are all transparent. The material is such that the user can see the virtual button icon 120 from the first plane 111 of the overlay 110. Since the electronic device 100 disclosed in the present invention applies the printing material 140 on the reverse side of the touch panel 130 (ie, the fourth plane 132) and covers the relative position of the virtual button icon 120, it can be improved. The problem of uneven brightness caused by the wires 320 on the touch panel 130 can avoid the phenomenon of light leakage.

It should be noted that the luminance component L, the first chrominance component a, and the second chrominance component b of the color of the printing material 140 are a predetermined interval D from the illumination source 150 and the printing material 140 and the illumination source. The light intensity of 150 is related. In other words, the color of the printing material 140 (including the luminance component L, the first chrominance component a, and the second chrominance component b) can be set (adjusted) according to the predetermined interval D and the light intensity of the illumination source 150 to obtain the best. The brightness effect. For example, in this embodiment, the predetermined interval D between the illumination source 150 and the printing material 140 is substantially equal to 0.1 millimeters (mm); and the illumination source 150 can be a light emitting diode (LED). And the light intensity of the light-emitting diode is substantially equal to 28 to 72 milli-candles (mcd). In this case, the luminance component L, the first chrominance component a, and the second chrominance component b of the color of the printing material 140 can be set to: 79.5±2, 3.3±1, and 10.5±1, respectively, and the printing material. The thickness of 140 is approximately equal to 11 ± 2 microns (μm).

Please note that the electronic device 100 described above can be a handheld touch electronic device, such as a mobile phone, a PDA, a PDA phone, or a smart phone, but The invention is not limited thereto, and may be other types of touch electronic devices. In this embodiment, the third area 131A and the fourth area 131B of the touch panel 130 use the same touch panel (which may be a capacitive touch panel or a resistive touch panel). The third area 131A of the control panel 130 serves as a virtual button area, and the fourth area 131B serves as an image display area.

Please refer to FIG. 4, which is a flow chart of an operation example of a method for assembling an electronic device according to the present invention, which includes the following steps (note that if substantially the same result is obtained, the following steps are not limited. Execute in the order shown in Figure 4):

Step S400: Start.

Step S402: providing a cover plate having a first plane and a second plane relative to the first plane, and the first plane is divided into a first area as a virtual button and a second area for displaying an image.

Step S404: setting the virtual button icon on the second plane of the cover plate and located at a relative position of the first area.

Step S406: providing a touch panel, the touch panel having a third plane and a fourth plane relative to the third plane, and the third plane is divided into a third area as a virtual button and used to display images and receive touch signals The fourth area.

Step S408: coating the printing material on the fourth plane of the touch panel and covering at least the relative position of the third area.

Step S410: The illumination source is disposed on one side of the printing material and above the relative position of the virtual button icon.

Step S412: The cover plate is disposed on the touch panel such that the second plane of the cover plate contacts and adheres to the three planes of the touch panel, and the first region covers the third region, and the second The area system covers the fourth area.

For each step shown in Figure 4, please use the components shown in Figure 1, Figure 2, and Figure 3 to understand how each component works. For the sake of simplicity, Figure 4 The operation of each step in the process will not be described again. In addition, the steps of the above-described processes are merely examples of the present invention, and are not intended to limit the scope of the present invention, and the method may further include other intermediate steps or may be several without departing from the spirit of the present invention. The steps are combined into a single step to make the appropriate changes.

The embodiments described above are only intended to illustrate the technical features of the present invention and are not intended to limit the scope of the present invention. As can be seen from the above, the present invention provides an electronic device and related assembly method. By applying the printing material 140 on the reverse side of the touch panel 130 of the electronic device (ie, the fourth plane 132) and overlying the relative position of the virtual button icon 120, the wires on the touch panel 130 can be improved. 320 causes uneven brightness and can avoid light leakage. In addition, the color of the printing material 140 (including the luminance component L, the first chrominance component a, and the second chrominance component b) may be set (adjusted) according to the predetermined interval D and the light intensity of the illumination source 150 for optimal Brightness effect.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100. . . Electronic device

110. . . Cover plate

120. . . Virtual button icon

130. . . Touch panel

140. . . Printing material

150. . . Light source

160. . . Optical transparent adhesive

111. . . First plane

112. . . Second plane

131. . . Third plane

132. . . Fourth plane

D. . . Scheduled interval

111A, 111B, 112A, 112B, 131A, 131B, 132A, 132B. . . region

310. . . Conductive pattern

320. . . wire

S400～S412. . . step

1 is a cross-sectional view showing an embodiment of an electronic device of the present invention.

Fig. 2 (including Fig. 2A and Fig. 2B) is a schematic view showing a first plane and a second plane of the cover sheet shown in Fig. 1.

FIG. 3 (including FIG. 3A and FIG. 3B ) is a schematic view showing a third plane and a fourth plane of the touch panel shown in FIG. 1 .

Figure 4 is a flow chart showing an example of the operation of one of the methods of assembling an electronic device of the present invention.

100. . . Electronic device

110. . . Cover plate

120. . . Virtual button icon

130. . . Touch panel

140. . . Printing material

150. . . Light source

160. . . Optical transparent adhesive

111. . . First plane

112. . . Second plane

131. . . Third plane

132. . . Fourth plane

D. . . Scheduled interval

Claims (11)

An electronic device includes: a cover plate having a first plane and a second plane relative to the first plane, and the first plane is divided into a first area as a virtual button and used to display an image a second area; a virtual button icon disposed on the second plane of the cover panel and located at a relative position of the first area; a touch panel having a third plane and relative to the third a fourth plane of the plane, and the third plane is divided into a third area as a virtual button and a fourth area for displaying an image and receiving a touch signal; a printing material coated on the touch panel And in the fourth plane, at least over the relative position of the third area; and a light source disposed on one side of the printing material and located above the relative position of the virtual button icon; wherein The second plane of the cover panel is in contact with and bonded to the three planes of the touch panel, and the first region covers the third region, and the second region covers the fourth region. On. The electronic device according to claim 1, wherein a brightness component L, a first chrominance component a, and a second chrominance component b of the color of the printing material are between the light source and the printing material. One of the predetermined intervals is related to the light intensity of the illumination source. The electronic device of claim 2, wherein the predetermined interval is substantially equal to 0.1 millimeters (mm). The electronic device of claim 2, wherein the light source is a light emitting diode, and the light intensity of the light emitting diode is substantially equal to 28 to 72 milliknora (mcd). The electronic device of claim 1, wherein the luminance component L, the first chrominance component a, and the second chrominance component b of the color of the printed material are equal to 79.5±2, 3.3±1, and 10.5±1, respectively. . The electronic device of claim 1, wherein the thickness of the printed material is substantially equal to 11 ± 2 micrometers (μm). The electronic device of claim 1, wherein the touch panel is a capacitive touch panel or a resistive touch panel. For example, the electronic device described in claim 1 is a mobile phone, a number of assistants, a number of assistant mobile phones or a smart phone. A method of assembling an electronic device, comprising the steps of: providing a cover plate having a first plane and a second plane relative to the first plane, and the first plane is divided into virtual buttons a first area and a second area for displaying an image; a virtual button icon is disposed on the second plane of the cover board and located at a relative position of the first area; providing a touch panel, The touch panel has a third plane and a fourth plane relative to the third plane, and the third plane is divided into a third area as a virtual button and one of displaying an image and receiving a touch signal. a fourth area; a printing material is coated on the fourth plane of the touch panel, and at least covers a relative position of the third area; a light source is disposed on one side of the printing material, and Located above the relative position of the virtual button icon; and the cover plate is disposed on the touch panel such that the second plane of the cover plate is in contact with the three planes of the touch panel Together, and the first region based overlying the third region and the second region based overlying the fourth region. The method of claim 9, wherein the brightness component L, the first chrominance component a, and the second chrominance component b of the color of the printing material are spaced apart from the illumination source and the printing material. A predetermined interval is related to the light intensity of the illumination source. The method of claim 9, wherein the luminance component L, the first chrominance component a, and the second chrominance component b of the color of the printed material are equal to 79.5±2, 3.3±1, and 10.5±1, respectively.