CN102446016B - Electronic device and method of assembling the electronic device - Google Patents

Abstract

The present invention relates to an electronic device and a method of assembling the electronic device. The electronic device comprises a covering plate, a virtual key icon, a touch panel, a printing material and a light source. The overlay has a first plane and a second plane, the first plane is divided into a first area as a virtual key and a second area for displaying images. The virtual key icon is arranged on the second plane and is positioned at the relative position of the first area. The touch panel is provided with a third plane and a fourth plane, and the third plane is divided into a third area serving as a virtual key and a fourth area used for displaying images. The printing material is coated on the fourth plane and covers the opposite position of the third area. The luminous source is arranged on one side of the printing material and is positioned at the opposite position of the virtual key icon. The covering plate is adhered to the touch panel, the first area covers the third area, and the second area covers the fourth area.

Description

Electronic device and method of assembling the electronic device

technical field

The present invention relates to an electronic device and a method for assembling the electronic device, in particular to an electronic device in which printing material is coated on the reverse side of a touch panel and covers the relative positions of virtual button icons, so as to improve uneven brightness question.

Background technique

In today's consumer electronics market, portable electronic products such as personal digital assistants (PDAs), mobile phones (mobile phones) and PDA mobile phones have widely used touch panels as their data communication. interface tool. Since the current design of electronic products is 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 computers that emphasize humanized design. The display device of the touch panel has gradually become one of the key components of various electronic products.

Taking the capacitive touch panel as an example, it uses conductive patterns on the touch panel (for example: conductive patterns made of indium tin oxide (ITO) or indium zinc oxide (IZO)) to sense the The amount of capacitance change, and scan with wires in a row-by-row and column-by-column manner to obtain the coordinate information of the X-axis and Y-axis. However, these wires are usually drawn to the lowermost area of the touch panel, which is the area where the virtual keys are placed, so when the light-emitting diodes below the virtual key icons emit light to the virtual key icons, it will be due to the presence of these wires. The relationship causes the problem of uneven brightness, and leads to the phenomenon of light leakage.

Therefore, how to solve the above-mentioned problem of uneven brightness and avoid the occurrence of light leakage is also one of the important issues in this design field.

Contents of the invention

Therefore, one of the objectives of the present invention is to provide an electronic device and related assembly method to solve the above problems.

The invention discloses an electronic device, which includes: a cover plate, a virtual button icon, a touch panel, a printing material and a light source. The cover plate has a first plane and a second plane opposite to the first plane, and the first plane is divided into a first area for virtual keys and a second area for displaying images. The virtual button icon is arranged on the second plane of the cover board and is located at a position relative to the first area. The touch panel has a third plane and a fourth plane opposite to the third plane, and the third plane is divided into a third area as a virtual key and a fourth area for displaying images and receiving touch signals. The printing material is coated on the fourth plane of the touch panel and at least covers the relative position of the third area. The luminous source is arranged on one side of the printed material and above the relative position of the virtual button icon. Wherein, 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 covers the fourth area above.

In the embodiment, the luminance component L, the first chromaticity component a and the second chromaticity component b of the color of the printed material are the predetermined distance between the light emitting source and the printed material and the light of the light emitting source Intensity related. In another embodiment, the lightness component L, the first chromaticity component a and the second chromaticity component b of the color of the printed material are respectively equal to 79.5±2, 3.3±1 and 10.5±1.

The present invention further discloses a method for assembling an electronic device. The method includes the following steps: providing a cover plate, the cover plate has a first plane and a second plane opposite to the first plane, and the first plane is divided into a second plane as a virtual key An area and a second area for displaying images; the virtual button icon is arranged on the second plane of the cover plate, and is located on the relative position of the first area; a touch panel is provided, and the touch panel has a third plane and an opposite The fourth plane is on the third plane, and the third plane is divided into a third area as a virtual button and a fourth area for displaying images and receiving touch signals; coating printed materials on the fourth plane of the touch panel and cover at least the relative position of the third area; arrange the light emitting source on one side of the printed material and above the relative position of the virtual key icon; and arrange the cover plate on the touch panel to The second plane of the cover board is in contact with the three planes of the touch panel and bonded, the first area covers the third area, and the second area covers the fourth area.

Description of drawings

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

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

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

FIG. 4 is a flowchart of an exemplary operation of the method for assembling an electronic device of the present invention.

Explanation of reference signs

100 electronic devices

110 cover plate

120 virtual button icons

130 touch panel

140 printed materials

150 light sources

160 optically transparent glue

111 First Plane

112 second plane

131 Third Plane

132 Fourth Plane

D scheduled interval

111A, 111B, 112A, 112B, 131A, 131B, 132A, 132B areas

310 conductive pattern

320 wire

Steps from S400 to S412

Detailed ways

Please refer to Figure 1, Figure 2 and Figure 3 together, Figure 1 is a cross-sectional view of an embodiment of the electronic device 100 of the present invention, and Figure 2 (including Figures (2A) and (Figure 2B)) is shown in Figure 1 The schematic diagram of the first plane 111 and the second plane 112 of the cover plate 110, and Figure 3 (including Figure (3A) and Figure (3B)) is the third plane 131 and the Schematic diagram of four planes 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 printed material 140 and a light source 150 . Wherein, the cover board 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 touch panel 110 is in contact with and adhered to the third plane 131 of the touch panel 130 through an optical clear adhesive (OCA) 160 .

As shown in FIG. 2A , the first plane 111 (front side) of the cover plate 110 is divided into a first area 111A for virtual buttons (eg, Home, Menu) and a second area 111B for displaying images. As shown in Figure (2B), the second plane 112 (reverse side) of the cover plate 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 area 112B of the second plane 112 corresponds to the second area 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 key and a fourth area 131B for displaying images and receiving touch signals. As shown in FIG. 3B , the fourth plane 132 (back side) of the touch panel 130 is also divided into two areas 132A, 132B, wherein the area 132A of the fourth plane 132 corresponds to the third area 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 . It can be seen from FIG. 2 and FIG. 3 that when the cover plate 110 is in contact with the touch panel 130 and bonded, the first area 111A of the cover plate 110 covers the third area 131A of the touch panel 130, and covers The second region 111B of the board 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), which may include There are a plurality of conductive patterns 310 (for example: conductive patterns made of indium tin oxide (ITO) or indium zinc oxide (IZO)) and a plurality of wires 320, wherein each wire 320 is used to electrically connect the same row ( Or the conductive patterns in the same row) to obtain the coordinate information of the X-axis and Y-axis.

Please continue to refer to FIG. 1 , the virtual button icon 120 is disposed on the second plane 112 of the cover plate 110 and is located at a relative position to the first area 111A (as shown in FIG. 2 , namely the area 112A). The printing material 140 is coated on the fourth plane 132 of the touch panel 130 and at least covers the relative position of the third area 131A (as shown in FIG. 3 , that is, the area 132A). The light source 150 is disposed on one side of the printed material 140 and above the relative position of the virtual button icon 120 . That is to say, when the light source 150 emits light, the light will sequentially pass through the printed material 140, the touch panel 130, the optically transparent adhesive 160, the virtual button icon 120 and the cover plate 110, because these components are all light-transmitting materials , so the user can see the virtual button icon 120 from the first plane 111 of the cover plate 110 . Since the electronic device 100 disclosed in the present invention coats the printed material 140 on the reverse side of the touch panel 130 (that is, the fourth plane 132) and covers the relative positions of the virtual button icons 120, it can improve 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 brightness component L, the first chromaticity component a and the second chromaticity component b of the color of the printed material 140 are the predetermined interval D between the light emitting source 150 and the printed material 140 and the light emitting source 150 It is related to the brightness of the light. In other words, the color of the printed material 140 (including the brightness component L, the first chromaticity component a and the second chromaticity component b) can be set (adjusted) according to the predetermined interval D and the light intensity of the light source 150, so as to obtain the optimum Good brightness effect. For example, in this embodiment, the predetermined distance D between the light emitting source 150 and the printing material 140 is approximately equal to 0.1 millimeter (mm); and the light emitting source 150 can be a light emitting diode (LED), and the light emitting diode The light intensity of the lamp is roughly equal to 28-72 millicandlepower (mcd). In this case, the lightness component L, the first chromaticity component a and the second chromaticity component b of the color of the printed material 140 can be set to 79.5±2, 3.3±1 and 10.5±1 respectively, and the printing The thickness of material 140 is approximately equal to 11±2 microns (μm).

Please note that the above-mentioned electronic device 100 can be a hand-held touch electronic device, such as a mobile phone, a personal digital assistant (PDA), a personal digital assistant mobile phone (PDA phone) or a smart phone (smartphone), but the present invention is not limited thereto , can also be other types of touch-sensitive electronic devices. Furthermore, in this embodiment, the third region 131A and the fourth region 131B of the touch panel 130 use the same touch panel (which can be a capacitive touch panel or a resistive touch panel), wherein the touch panel The third area 131A of 130 is used as a virtual button area, and the fourth area 131B is used as an image display area.

Please refer to FIG. 4. FIG. 4 is a flow chart of an example of the operation of the method for assembling an electronic device of the present invention, which includes the following steps (please note that if roughly the same result can be obtained, the following steps are not limited to those shown in FIG. 4 sequence to execute):

Step S400: start.

Step S402 : providing a cover board, the cover board has a first plane and a second plane opposite to the first plane, and the first plane is divided into a first area serving 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 board and at a position relative to the first area.

Step S406: Provide 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 serving as a virtual key and an area for displaying images and receiving touch signals 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: Setting the light source on one side of the printed material and above the relative position of the virtual button icon.

Step S412: disposing the cover plate on the touch panel, so that the second plane of the cover plate contacts and adheres to the three planes of the touch panel, and the first area covers the third area, and the second The area overlays the fourth area.

For the steps shown in Figure 4, please match the components shown in Figure 1, Figure 2, and Figure 3 to understand how each component works. For the sake of brevity, the operation of each step in Figure 4 is simplified. No longer. In addition, the steps of the above process are only feasible embodiments of the present invention, and are not limiting conditions of the present invention, and without violating the spirit of the present invention, this method may additionally include other intermediate steps or several Steps can be combined into a single step to make appropriate changes.

The above-mentioned embodiments are only used 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 a related assembly method thereof. By coating the printed material 140 on the reverse side of the touch panel 130 (that is, the fourth plane 132 ) of the electronic device, and covering the relative positions of the virtual button icons 120 , the visibility on the touch panel 130 can be improved. The problem of uneven brightness caused by the wire 320 can be avoided, and the phenomenon of light leakage can be avoided. In addition, the color of the printing material 140 (including the brightness component L, the first chromaticity component a and the second chromaticity component b) can be set (adjusted) according to the predetermined interval D and the light intensity of the light source 150, so as to obtain the optimum Best brightness effect.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (9)

1. An electronic device comprising: The cover board has a first plane and a second plane relative to the first plane, and the first plane is divided into a first area for virtual keys and a second area for displaying images; The virtual button icon is set on the second plane of the cover board and is located at a relative position to the first area; The touch panel has a third plane and a fourth plane opposite to the third plane, the third plane and the fourth plane are respectively located on opposite sides of the touch panel, and the third plane is divided into virtual keys a third area and a fourth area for displaying images and receiving touch signals; a printing material coated on the fourth plane of the touch panel and covering at least the relative position of the third region, wherein the printing material is a light-transmitting material; and The light source is set on one side of the printed material and is located above the relative position of the virtual button icon; Wherein, 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 covers the fourth area above; Wherein the luminance component L, the first chromaticity component a and the second chromaticity component b of the color of the printing material are related to the predetermined distance between the light emitting source and the printing material and the light intensity of the light emitting source, so that Avoid uneven brightness and light leakage. 2. The electronic device as claimed in claim 1, wherein the predetermined interval is equal to 0.1 mm. 3. The electronic device as claimed in claim 1, wherein the light source is a light emitting diode, and the light intensity of the light emitting diode is equal to 28-72 mCd. 4. The electronic device as claimed in claim 1, wherein the lightness component L, the first chromaticity component a and the second chromaticity component b of the color of the printed material are respectively equal to 79.5±2, 3.3±1 and 10.5±1. 5. The electronic device as claimed in claim 1, wherein the thickness of the printing material is equal to 11±2 microns. 6. The electronic device as claimed in claim 1, wherein the touch panel is a capacitive touch panel or a resistive touch panel. 7. The electronic device according to claim 1, which is a mobile phone, a personal digital assistant, a personal digital assistant mobile phone or a smart phone. 8. A method of assembling an electronic device comprising the steps of: providing a cover board, the cover board has 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 key and a second area for displaying an image; setting the virtual button icon on the second plane of the cover board, and at a relative position to the first area; A touch panel is provided, the touch panel has a third plane and a fourth plane opposite to the third plane, the third plane and the fourth plane are respectively located on opposite sides of the touch panel, and the third plane is divided into A third area for virtual buttons and a fourth area for displaying images and receiving touch signals; Coating a printing material on the fourth plane of the touch panel and covering at least the relative position of the third region, wherein the printing material is a light-transmissible material; arranging the luminous source on one side of the printed material and above the relative position of the virtual button icon; and The cover plate is arranged on the touch panel, so that the second plane of the cover plate is in contact with the three planes of the touch panel and bonded, and the first area covers the third area on, and the second region overlies the fourth region; Wherein the luminance component L, the first chromaticity component a and the second chromaticity component b of the color of the printed material are related to the predetermined distance between the light emitting source and the printing material and the light intensity of the light emitting source, so as to Avoid uneven brightness and light leakage. 9. The method as claimed in claim 8, wherein the lightness component L, the first chroma component a and the second chroma component b of the color of the printed material are respectively equal to 79.5±2, 3.3±1 and 10.5±1.