Electronic device

Abstract

The electronic device comprises a circuit board, a first light guide part, a patterned display part and a first light source. The circuit board has a first surface and a second surface. The first light guide member has a first light incident surface and a first light guide portion. The patterned display member is disposed on the second surface of the circuit board. The first light source is arranged on the first surface of the circuit board and used for emitting first light rays, and the first light rays enter the first light guide piece from the first light incidence face and are guided by the first light guide part to enter the first patterned display layer. Therefore, the second surface of the circuit board does not need to be flattened additionally, and an element can be arranged above the circuit board more smoothly.

Description

Technical Field

[0001] The utility model relates to an electronic device, and in particular to an electronic device capable of displaying patterns. Background Art

[0002] Generally, electronic devices include multiple electronic components and circuit boards. These electronic components can be arranged on the circuit board. However, depending on the type of electronic device, the arrangement position of the electronic components will affect the functions and spatial matching of the components around the circuit board. Therefore, how to properly arrange the electronic components on the circuit board is the goal of the industry in this field. Summary of the invention

[0003] Therefore, the present invention provides an electronic device to improve the above-mentioned problem.

[0004] One embodiment of the utility model provides an electronic device. The electronic device includes a circuit board, a first light guide, a patterned display element and a first light source. The circuit board has a first surface and a second surface. The first light guide has a first light incident surface and a first light guide portion. The patterned display element is arranged on the second surface of the circuit board. The first light source is arranged on the first surface of the circuit board and is used to emit a first light ray, wherein a normal line of the first light incident surface passes through the first light guide portion. In one embodiment, since the first light source is arranged on the first surface of the circuit board, there is no need to additionally flatten the second surface of the circuit board, so that a component can be arranged flatly above the circuit board.

[0005] Another embodiment of the utility model provides an electronic device. The electronic device includes a circuit board, a patterned display element, a light source and a first light guide module. The circuit board has a first surface and a second surface. The patterned display element is configured on the second surface of the circuit board and has a first surface. The light source is configured on the first surface of the circuit board. The first light guide module extends from the first surface of the circuit board to the first surface of the patterned display element. In one embodiment, since the light source is configured on the first surface of the circuit board, there is no need to additionally flatten the second surface of the circuit board, so that a component can be flatly configured above the circuit board.

[0006] Another embodiment of the utility model provides an electronic device. The electronic device includes a patterned display element, a first light guide element, a circuit board, a first light source, and a second light source. The first light guide element has a first light incident surface. The circuit board has an opening and a first surface, and the opening exposes the patterned display element. The first light source is arranged on the first surface of the circuit board and is arranged adjacent to the first light incident surface. The second light source is arranged on the first surface of the circuit board and corresponds to the opening.

[0007] Another embodiment of the utility model provides an electronic device. The electronic device includes a circuit board, a patterned display element, a first light guide module and a first light source. The circuit board has a first surface and a second surface. The patterned display element is configured on the second surface of the circuit board. The first light guide module has a first light incident surface, a first light emitting surface and a first light guide portion, the first light guide portion is arranged between the first light incident surface and the first light emitting surface, and the first light emitting surface is arranged corresponding to the patterned display element. The first light source is arranged on and electrically connected to the circuit board, and the first light source has a first light emitting surface facing the first light incident surface.

[0008] In order to better understand the above and other aspects of the present invention, the following embodiments are specifically described in detail with reference to the accompanying drawings: BRIEF DESCRIPTION OF THE DRAWINGS

[0009] FIG. 1A is a schematic diagram of an electronic product according to an embodiment of the present invention.

[0010] FIG. 1B is a top view of the electronic device of FIG. 1A .

[0011] FIG. 1C is a cross-sectional view of the electronic device of FIG. 1B along direction 1C- 1C′.

[0012] FIG. 2 is a cross-sectional view of an electronic device according to another embodiment of the present invention.

[0013] FIG. 3A is a top view of an electronic device according to another embodiment of the present invention.

[0014] FIG. 3B is a cross-sectional view of FIG. 3A along direction 3B- 3B′.

[0015] FIG. 4 is a cross-sectional view of an electronic device according to another embodiment of the present invention.

[0016] FIG. 5 is a cross-sectional view of an electronic device according to another embodiment of the present invention.

[0017] FIG. 6 is a bottom view of an electronic device according to another embodiment of the present invention.

[0018] FIG. 7A is a top view showing a light emitting pattern of the electronic device of FIG. 6 in a first light emitting mode.

[0019] FIG. 7B is a cross-sectional view of the electronic device of FIG. 7A taken along direction 7B- 7B′.

[0020] FIG. 8A is a top view showing a light emitting pattern of the electronic device of FIG. 6 in a second light emitting mode.

[0021] FIG. 8B is a cross-sectional view of the electronic device of FIG. 8A along direction 8B- 8B′. DETAILED DESCRIPTION

[0022] Please refer to FIGS. 1A to 1C , FIG. 1A is a schematic diagram of an electronic product 10 according to an embodiment of the present invention, FIG. 1B is a top view of the electronic device 100 of FIG. 1A , and FIG. 1C is a cross-sectional view of the electronic device 100 of FIG. 1A along direction 1B- 1B′.

[0023] As shown in FIG. 1A , the electronic product 10 may also be a laptop computer, keyboard, home appliance, smart phone, or other products with input requirements. The present embodiment of the utility model does not limit the type of the electronic product 10. The electronic product 10 of the present embodiment of the utility model is described by taking a laptop computer as an example.

[0024] As shown in FIG. 1A , the electronic product 10 includes a display 11, a body 12, a keyboard 13, and an electronic device 100. The display 11 is pivotally connected to the body 12. The keyboard 13 and the electronic device 100 are disposed on the body 12. The electronic device 100 of the embodiment of the utility model can be an input module with a display function, such as a touch pad or a touch keyboard.

[0025] As shown in FIGS. 1B and 1C , the electronic device 100 includes a housing 105, a circuit board 110, at least one first light guide (e.g., first light guides 120A and 120B), a patterned display element 130, and at least one first light source (e.g., first light sources 140A and 140B). The circuit board 110 has a first surface 110b and a second surface 110u. The first light guide 120A has a first light incident surface 120A1s and a first light guide portion 120A3. The patterned display element 130 is disposed on the second surface 110u of the circuit board 110. The first light source 140A is disposed on the first surface 110b of the circuit board 110 and is used to emit a first light beam L1 A The normal line N1 of the first light incident surface 120A1s passes through the first light guide portion 120A3. A The light enters the first light guide 120A from the first light incident surface 120A1s, and is guided to the first patterned display layer 130 by the first light guide portion 120A3. Since the first light source 140A is disposed on the first surface 110b of the circuit board 110, it does not occupy the space above the second surface 110u of the circuit board 110, and does not protrude relative to the second surface 110u (if the first light source 140A is disposed adjacent to the side of the circuit board 110, the first light source 140A may protrude relative to the second surface 110u), so that the patterned display element 130 can be disposed flatly on the second surface 110u of the circuit board 110. In one embodiment, all circuit elements (e.g., light sources, active chips, passive elements, etc.) on the circuit board 110 can be disposed on the first surface 110b of the circuit board 110, and the second surface 110u of the circuit board 110 is in a clear state.

[0026] As shown in FIG. 1C , the housing 105 has an opening 105a, which overlaps with the circuit element along the direction Z to avoid interference between the circuit element and the solid material of the housing 105. The housing 105 can reflect light to avoid or reduce light leakage. In one embodiment, the material of the housing 105 itself can reflect the first light L1 A and L1 B Alternatively, the housing 105 is provided with another reflective layer (eg, white paint, sheet material, etc.) to reflect the first light L1 A and L1 B . In terms of material, the housing 105 can be made of plastic, metal, etc. In terms of structure, the housing 105 includes a bottom 1051 and a side 1052 connected to each other, wherein the bottom 1051 corresponds to (for example, faces) the first surface 120A1b of the first portion 120A1 of the first light guide 120A and the first surface 120B1b of the first portion 120B1 of the first light guide 120B, and the side 1052 corresponds to (for example, faces) the side 120A2s of the second portion 120A2 of the first light guide 120A and the side 120B2s of the second portion 120B2 of the first light guide 120B. In addition, from a top view, the housing 105 is, for example, a single-piece housing.

[0027] As shown in FIG. 1C , the circuit board 110 includes a substrate 111 and a touch circuit layer 112. The substrate 111 is, for example, a light-transmitting plate, such as a glass plate. The touch circuit layer 112 is disposed on the substrate 111. In one embodiment, the first light source (140A and 140B) does not overlap the touch circuit layer 112 to avoid affecting the touch function. For example, the first light source (140A and 140B) and the touch circuit layer 112 are, for example, disposed on different sides / faces of the circuit board 110; or, the touch circuit layer 112 has, for example, a plurality of touch units, and the first light source (140A and 140B) can be disposed between the touch units. The patterned display element 130 can cover the entire circuit board 110. Since the light source does not protrude relative to the second surface 110u of the circuit board 110, the components above the circuit board 110 have good flatness, which helps to improve the touch quality. In addition, since the light source does not protrude relative to the second surface 110 u of the circuit board 110 , there is no need to additionally planarize the second surface 110 u of the circuit board 110 , or to additionally planarize the surface contacting the first surface of the patterned display element 130 .

[0028] In this embodiment, the number of the first light guide components is, for example, two, and the two first light guide components are arranged opposite to each other along a direction Y, but this is not intended to limit the embodiment of the utility model.

[0029] As shown in FIG. 1B , similar to the first light guide member 120A, the first light guide member 120B has a first light incident surface 120B1s and a first light guide portion 120AB. The first light source 140B is disposed on the first surface 110b of the circuit board 110 and is used to emit a first light beam L1 B The normal line N1 of the first light incident surface 120B1s passes through the first light guide portion 120B3. B The light is incident from the first light incident surface 120B1s into the first light guide 120B, and is guided by the first light guide portion 120B3 to the first patterned display layer 130. Since the first light source 140B is disposed on the first surface 110b of the circuit board 110, it does not occupy the space above the second surface 110u of the circuit board 110, and does not protrude relative to the second surface 110u (if the first light source 140B is disposed adjacent to the side of the circuit board 110, the first light source 140B may protrude relative to the second surface 110u), so that the patterned display element 130 can be evenly disposed on the second surface 110u of the circuit board 110.

[0030] As shown in FIG. 1B , the first light guide 120A includes the aforementioned first portion 120A1, the second portion 120A2, and the first light guide portion 120A3. The first portion 120A1 extends along a first direction (e.g., +Y axis) to the second portion 120A2 and has the aforementioned first light incident surface 120A1s. The second portion 120A2 extends from the first portion 120A1 along a second direction (e.g., +Z axis) and has a light emitting surface 120A2u, which faces one side of the patterned display element 130, such as the first surface 130b. The first light L1 A The light is incident on the patterned display element 130 through the light emitting surface 120A2u.

[0031] In this embodiment, the first light guide portion 120A3 may be formed on the first surface 120A1b of the portion 120A1 and the first surface of the second portion 120A2. At least two of the first portion 120A1, the second portion 120A2 and the first light guide portion 120A3 may be integrally formed, for example, by injection molding technology. In terms of material, at least one of the first portion 120A1, the second portion 120A2 and the first light guide portion 120A3 may be made of plastic.

[0032] Similarly, as shown in FIG. 1B , the first light guide 120B includes the aforementioned first portion 120B1, the second portion 120B2, and the first light guide portion 120B3. The first portion 120B1 extends along the -Y axis to the second portion 120B2 and has a first light incident surface 120B1s, and the first light incident surface 120B1s faces the second light source 140B. The second portion 120B2 extends from the first portion 120B1 along the second direction (e.g., the +Z axis) and has a light emitting surface 120B2u, and the light emitting surface 120B2u faces one side of the patterned display element 130, such as the first surface 130b. The first light L1 B The light is incident on the patterned display element 130 through the light emitting surface 120B2u.

[0033] In this embodiment, the first light guide portion 120B3 may be formed on the first surface 120B1b of the portion 120B1 and the first surface of the second portion 120B2. At least two of the first portion 120B1, the second portion 120B2 and the first light guide portion 120B3 may be integrally formed, for example, by injection molding technology. In terms of material, at least one of the first portion 120B1, the second portion 120B2 and the first light guide portion 120B3 may be made of plastic.

[0034] In this embodiment, the first light guide portion 120A3 is (or includes) a microstructure and / or the first light guide portion 120B3 is (or includes) a microstructure. The microstructure (or referred to as a dot) can reflect or scatter the incident light to make the light emission more uniform. In terms of structure, the microstructure can be a concave portion or a convex portion, and the side of its cross-sectional shape can include a straight line, a curve, or a combination thereof.

[0035] As shown in FIG. 1B , the first portion of the first light guide may support the circuit board 110. For example, the circuit board 110 may be disposed on the first portion 120A1 of the first light guide 120A and the first portion 120B1 of the second light guide 120B. The circuit board 110 may be constrained by the second portion of the first light guide. For example, when the circuit board 110 is supported by the first portion (120A1 and 120B1) of the first light guide (120A and 120B), the circuit board 110 may be stopped by the second portion 120A2 of the first light guide 120A and the second portion 120B2 of the second light guide 120B to constrain the displacement of the circuit board 110 along the Y-axis direction.

[0036] As shown in FIG. 1B , the patterned display element 130 includes a patterned light-transmitting layer 131 and a cover plate 132. The patterned light-transmitting layer 131 has a light-transmitting pattern, and the light-transmitting pattern corresponds to the light-emitting surface (120A2u and / or 120B2u) of the first light guide (120A and / or 120B). A and the first light L1 BThe light-transmitting pattern can be illuminated. The patterned light-transmitting layer 131 includes a light-transmitting base layer 1311, a patterned layer 1312 and a semi-light-transmitting layer 1313, wherein the patterned layer 1312 and the semi-light-transmitting layer 1313 are respectively disposed on two opposite surfaces of the light-transmitting base layer 1311. For example, the patterned layer 1312 is disposed on the second surface of the light-transmitting base layer 1311, and the semi-light-transmitting layer 1313 is disposed on the first surface of the light-transmitting base layer 1311. The light-transmitting base layer 1311 is, for example, made of plastic (for example, polyethylene terephthalate (PET), and the patterned layer 1312 includes, for example, a shading area and a light-transmitting area, wherein the shading area is, for example, an area formed with ink, and the light-transmitting area is an area without ink, which has the aforementioned light-transmitting pattern. The light-transmitting pattern includes, for example, numbers, symbols, letters or a combination thereof; or, the light-transmitting pattern is composed of a straight line, a curve or a combination thereof.

[0037] As shown in FIG. 1B , the cover plate 132 is disposed above the patterned light-transmitting layer 131. The cover plate 132 is, for example, a light-transmitting layer that allows the first light L1 A and L1 B In one embodiment, the cover plate 132 is a simple light-transmitting layer without any circuit thereon. The cover plate 132 has high hardness and can withstand long-term touch. In terms of material, the cover plate 132 can be made of glass, for example. In one embodiment, the cover plate 132 is, for example, a glass cover.

[0038] Please refer to FIG. 2, which shows a cross-sectional view of an electronic device 200 according to another embodiment of the present invention. The electronic device 200 includes a housing 205, a circuit board 110, at least one first light guide (e.g., first light guides 220A and 220B), a patterned display element 130, and a first light source (e.g., first light sources 140A and 140B). The circuit board 110 has a first surface 110b and a second surface 110u. The first light guide element 220A has a first light incident surface 120A1s and a first light guide portion 220A3. The normal N1 of the first light incident surface 120A1s passes through the first light guide portion 220A3. The patterned display element 130 is disposed on the second surface 110u of the circuit board 110. The first light source 140A is disposed on the first surface 110b of the circuit board 110 and is used to emit a first light beam L1 A , where the first light L1 A The light is incident from the first light incident surface 120A1s into the first light guide member 120A, and is guided by the first light guide portion 220A3 to be incident on the first patterned display layer 130 .

[0039] The electronic device 200 includes the same or similar features as the electronic device 100 , except that the first light guide of the electronic device 200 (eg, the first light guides 220A and 220B) is structurally different from the first light guide of the electronic device 100 (eg, the second light guides 120B and 120B).

[0040] As shown in FIG. 2 , the first light guide member 220A includes a first portion 120A1, a second portion 120A2, and a first light guide portion 220A3. The first portion 120A1 extends along the +Y axis to the second portion 120A2 and has a first light incident surface 120A1s, and the first light incident surface 120A1s faces the first light source 140A. A normal N1 of the first light incident surface 120A1s passes through the first light guide portion 220A3. The second portion 120A2 extends from the first portion 120A1 along a second direction (e.g., the +Z axis) and has a light emitting surface 120A2u, and the light emitting surface 120A2u faces one side of the patterned display element 130, such as the first surface 130b. In the present embodiment, the first light guide portion 220A3 of the first light guide member 220A is an inclined surface. The first light guide portion 220A3 connects the first surface 120A1b of the first portion 120A1 and the side surface 120A2s of the second portion 120A2. In one embodiment, the angle A11 between the first light guide portion 220A3 and (the extended surface of) the first surface 120A2b of the first portion 120A2 may be between 30 and 60 degrees.

[0041] Similarly, the first light guide member 220B includes a first portion 120B1, a second portion 120B2 and a first light guide portion 220B3. The first portion 120B1 extends along the -Y axis to the second portion 120B2 and has a first light incident surface 120B1s, and the first light incident surface 120B1s faces the second light source 140B. The normal N2 of the first light incident surface 120B1s passes through the first light guide portion 220B3. The second portion 120B2 extends from the first portion 120B1 along the second direction (e.g., the +Z axis) and has a light emitting surface 120B2u, and the light emitting surface 120B2u faces one side of the patterned display element 130, such as the first surface 130b. The first light guide portion 220B3 of the first light guide member 220B is an inclined surface. The first light guide portion 220B3 connects the first surface 120B1b of the first portion 120B1 and the side surface 120B2s of the second portion 120B2. In one embodiment, an included angle A12 between the first light guiding portion 220B3 and (the extended surface of) the first surface 120B1 b of the first portion 120B1 may be between 30 degrees and 60 degrees.

[0042] The housing 205 includes similar or identical technical features to the housing 105, one of the differences being that the housing 205 and the housing 105 are different in appearance. In further detail, the housing 205 has an appearance that conforms to the first light guide members 220A and 220B. For example, the housing 205 includes a bottom 1051, a side portion 1052, and a first oblique portion 2053, wherein the bottom 1051 corresponds to the first surface 120A1b of the first portion 120A1, the side portion 1052 corresponds to the side surface 120A2s of the second portion 120A2, and the first oblique portion 2053 connects the bottom 1051 and the side portion 1052 and corresponds to the first light guide members 220A3 and 220B3. From a top view, the housing 205 is, for example, a one-piece housing.

[0043] Please refer to Figures 3A and 3B. Figure 3A shows a top view of an electronic device 300 according to another embodiment of the present invention, and Figure 3B shows a cross-sectional view of Figure 3A along direction 3B-3B'. The electronic device 300 includes a housing 305, a circuit board 110, at least one first light guide module 320, a patterned display element 130, at least one first light source (for example, first light sources 140A and 140B) and a reflector 350. The circuit board 110 has a first surface 110b and a second surface 110u. The first light guide module 320 has a first light incident surface 120A1s and a first light guide portion 220A3. The normal N1 of the first light incident surface 120A1s passes through the first light guide portion 220A3. The patterned display element 130 is disposed on the second surface 110u of the circuit board 110. The first light source 140A is disposed on the first surface 110b of the circuit board 110 and is used to emit a first light beam L1 A , where the first light L1 A The light is incident from the first light incident surface 120A1s into the first light guide member 120A, and is guided by the first light guide portion 220A3 to be incident on the first patterned display layer 130 .

[0044] The electronic device 300 includes the same or similar features as the electronic device 200 , and one of the differences is that the first light guide module 320 of the electronic device 300 is different from the first light guide elements (eg, the first light guide elements 220A and 220B) of the electronic device 200 in structure.

[0045] As shown in Figure 3B, the first light guide module 320 includes a first light guide 220A, a first light guide 220B, a first connecting portion 321, a second light guide portion (for example, 320A4 and 320B4) and a third light guide portion 322, wherein the first connecting portion 321 connects the second portion 120A2 of the first light guide 220A and the second portion 120B2 of the first light guide 220B, so that the first connecting portion 321, the first light guide 220A and the first light guide 220B constitute a single-piece light guide. In addition, the second light guide portion 320A4 connects the first light emitting surface 321u of the first connection portion 321 and the side surface 120A4s of the second portion 120A4, the second light guide portion 320B4 connects the first light emitting surface 321u of the first connection portion 321 and the side surface 120B2s of the second portion 120B2, and the third light guide portion 322 is disposed on the first connection portion 321 and is located directly below the patterned display element 130. In the embodiment, as can be seen from FIG. 3B, the first light guide module 320 extends from the first surface 110b of the circuit board 110 to the first surface 131b of the patterned display element 130 (or the patterned display layer 131). In detail, the first light guide module 320 extends from the first surface 110b of the circuit board 110, bypasses the side surface of the circuit board 110, and extends to the first surface 131b of the patterned display element 130.

[0046] As shown in FIGS. 3A and 3B, the patterned display element 130 includes a patterned light-transmitting layer 131 and a cover plate 132. The patterned light-transmitting layer 131 has a light-transmitting pattern 131P, and the light-transmitting pattern 131P corresponds to the light-emitting surface (120A2u and / or 120B2u) of the first light guide (120A and / or 120B). A and the first light L1 B The light-transmitting pattern 131P can be illuminated. The patterned light-transmitting layer 131 includes a light-transmitting base layer 1311, a patterned layer 1312 and a semi-transmitting layer 1313, wherein the patterned layer 1312 and the semi-transmitting layer 1313 are respectively disposed on two opposite surfaces of the light-transmitting base layer 1311. For example, the patterned layer 1312 is disposed on the second surface of the light-transmitting base layer 1311, and the semi-transmitting layer 1313 is disposed on the first surface of the light-transmitting base layer 1311. The light-transmitting base layer 1311 is, for example, made of plastic (for example, PET), and the patterned layer 1312 includes, for example, a light-shielding area and a light-transmitting area, wherein the light-shielding area is, for example, an area formed with ink, and the light-transmitting area is an area without ink, which has the aforementioned light-transmitting pattern 131P. The aforementioned light-transmitting pattern 131P includes, for example, numbers, symbols, letters or a combination thereof; or, the aforementioned light-transmitting pattern 131P is composed of a straight line, a curve or a combination thereof.

[0047] In this embodiment, the second light guide portion 320A4 is, for example, an inclined surface, which can guide the first light L1 AThe second light guide portion 320B4 is, for example, an inclined surface, which can guide the first light L1 B The third light guide portion 322 can guide the first light L1 A and the first light L1 B The light is guided to the patterned display element 130 located thereon.

[0048] In one embodiment, the angle A31 between the second light guide portion 320A4 and the first light emitting surface 321u (the extended surface) of the first connecting portion 321 is, for example, between 30 degrees and 60 degrees. The angle A32 between the second light guide portion 320B4 and the first light emitting surface 321u (the extended surface) of the first connecting portion 321 is, for example, between 30 degrees and 60 degrees. The third light guide portion 322 is identical or similar to the first light guide portion (e.g., 220A2 and / or 220B2) in structure, and will not be described in detail herein.

[0049] In one embodiment, at least two of the first light guide 220A, the first light guide 220B and the first connecting portion 321 can be integrally formed by injection molding technology. In terms of material, at least one of the first light guide 220A, the first light guide 220B and the first connecting portion 321 can be a transparent material such as plastic or glass.

[0050] As shown in FIG. 3B, the first light L1 A The light is emitted from the patterned display element 130 through the first light guide portion 220A3, the second light guide portion 320A4 and the third light guide portion 322 in sequence. B Light is emitted from the patterned display element 130 via the first light guide portion 220B3 , the second light guide portion 320B4 , and the third light guide portion 322 .

[0051] As shown in FIGS. 3A and 3B , the patterned display element 130 includes a patterned light-transmitting layer 131 and a cover plate 132. The patterned light-transmitting layer 131 has a light-transmitting pattern (such as the pattern shown in FIG. 3A ), and the light-transmitting pattern corresponds to the first light-emitting surface 321u of the first light guide 320. The light-transmitting pattern may include numbers, symbols, letters, or a combination thereof; or, the light-transmitting pattern may be composed of a straight line, a curve, or a combination thereof.

[0052] As shown in FIG. 3B , the housing 305 includes similar or identical technical features to the housing 205 , and one of the differences is that the housing 305 is different from the housing 205 in appearance. Further, the housing 305 has an appearance that conforms to the first light guide module 320 . For example, the housing 205 includes a bottom 1051 , a side 1052 , a first oblique portion 2053 , and a second oblique portion 3054 , wherein the bottom 1051 corresponds to the first surface 120A1b of the first portion 120A1 , the side 1052 corresponds to the side 120A2s of the second portion 120A2 , the first oblique portion 2053 connects the bottom 1051 and the side 1052 and corresponds to the first light guide portions 220A3 and 220B3 , and the second oblique portion 3054 connects the side 1052 and corresponds to the second light guide portions 320A4 and 320B4 . From a top view, the housing 305 is, for example, a single-piece housing.

[0053] As shown in FIG. 3B , the reflector 350 may be disposed between the circuit board 110 and the first light guide module 320. The reflector 350 may reflect light back to the first light guide module 320, thereby reducing light leakage. Although not shown, the reflector 350 may include, for example, a light-transmitting layer and a reflective layer, wherein the light-transmitting layer may be made of, for example, plastic (e.g., PET), and the reflective layer may be, for example, white paint. In one embodiment, the reflective layer may be formed on the second surface or the first surface of the light-transmitting layer. In another embodiment, the reflective layer may be, for example, reflective particles, which may be doped in the light-transmitting layer.

[0054] Please refer to FIG. 4 , which shows a cross-sectional view of an electronic device 400 according to another embodiment of the present invention. The electronic device 400 includes a housing 105 , a circuit board 410 , at least one first light guide (e.g., 120A and 120B), a patterned display element 130 , a first light source (e.g., first light sources 140A and 140B) and at least one second light source 440 .

[0055] The electronic device 400 of the present embodiment has the same or similar technical features as the electronic device 100 of FIG. 1B , with at least one difference being that the circuit board 410 of the electronic device 400 is different from the circuit board 110 , and the electronic device 400 further includes at least one second light source 440 .

[0056] As shown in FIG. 4 , the circuit board 410 has the same or similar technical features as the circuit board 110 of FIG. 1B , with at least one difference being that the circuit board 410 has at least one opening 410a, and the opening 410a extends from the second surface 410u of the circuit board 410 to the first surface 410b. Each second light source 440 is disposed on the first surface 410b of the circuit board 410, and overlaps with the corresponding opening 410a along the Z-axis direction. The second light source 440 can emit a second light ray L2, and the second light ray L2 can pass through the opening 410a to be incident on the patterned display element 130, and then be emitted from the patterned display element 130. In one embodiment, the first light ray (L1) emitted by the first light source (140A and 140B) A and L1 B ) and the second light L2 emitted by the second light source 440 may be different in color or may be the same in color. A and L1 B ) and the light color of the second light L2 are, for example, red, green, blue or a mixture of any proportion thereof. Although the opening 410a in the above embodiment is described as a through hole, the embodiment of the utility model is not limited thereto; in other embodiments, the circuit board may be provided with other types of openings to accommodate at least part of the light source, thereby reducing the overall thickness of the electronic device.

[0057] Please refer to FIG. 5 , which shows a cross-sectional view of an electronic device 500 according to another embodiment of the present invention. The electronic device 500 includes a housing 305 , a circuit board 410 , at least one first light guide module 320 , a patterned display element 130 , a first light source (e.g., first light sources 140A and 140B), at least one second light source 440 , and a reflector 350 .

[0058] The electronic device 500 of the present embodiment has the same or similar technical features as the electronic device 100 of FIG. 3B , with at least one difference being that the circuit board 410 of the electronic device 500 is different from the circuit board 110 , and the electronic device 500 further includes at least one second light source 440 .

[0059] As shown in FIG. 5 , the circuit board 410 has the same or similar technical features as the circuit board 110 of FIG. 3B , except that the circuit board 410 has at least one opening 410a. Each second light source 440 overlaps with the corresponding opening 410a along the Z axis. The second light source 440 can emit a second light L2, which passes through the opening 410a and the patterned display element 130. In one embodiment, the first light (L1) emitted by the first light source (140A and 140B) A and L1 B ) and the second light L2 emitted by the second light source 440 may be different in color, or may be the same. Aand L1 B ) and the light color of the second light L2 are, for example, red, green, blue or light mixed in any proportion thereof.

[0060] Please refer to Figures 6 to 8B, Figure 6 shows a bottom view of an electronic device 600 according to another embodiment of the present invention, Figure 7A shows a top view of the light-emitting pattern of the electronic device 600 in Figure 6 in a first light-emitting mode, Figure 7B shows a cross-sectional view of the electronic device 600 in Figure 7A along direction 7B-7B', Figure 8A shows a top view of the light-emitting pattern of the electronic device 600 in Figure 6 in a second light-emitting mode, and Figure 8B shows a cross-sectional view of the electronic device 600 in Figure 8A along direction 8B-8B'.

[0061] The electronic device 600 includes a housing 605, a circuit board 110, a first light guide module 320, a first light source (e.g., first light sources 140A and 140B), at least one second light source (e.g., second light sources 640A and 640B), a patterned display element 630, a second light guide module 620, and a reflective element 350. In the present embodiment, the patterned display element 630 includes a patterned light-transmitting layer 131 and a cover plate 632, wherein a portion of the second light guide module 620 is located between the patterned light-transmitting layer 131 and the cover plate 632.

[0062] As shown in FIG. 7B , the first light guide module 320 has a first light incident surface (120A1s and 120B1s), a first light emitting surface 321u and a first light guide portion (220A3 and 220B3), the first light guide portion is disposed between the first light incident surface and the first light emitting surface 321u, and the first light emitting surface 321u is disposed corresponding to the patterned display element 630. The first light source (140A and 140B) is disposed on and electrically connected to the circuit board 110, and the first light source (140A and 140B) has a first light emitting surface (140As and 140Bs) facing the first light incident surface (120A1s and 120B1s).

[0063] As shown in FIGS. 7A and 7B, the patterned light-transmitting layer 131 includes a light-transmitting base layer 1311, a patterned layer 1312, and a semi-transmitting layer 1313, wherein the patterned layer 1312 and the semi-transmitting layer 1313 are respectively disposed on two opposite sides of the light-transmitting base layer 1311. The first light-transmitting pattern P1 of the patterned layer 1312 is as shown in FIG. 7A. The first light-transmitting pattern P1, for example, includes numbers, symbols, letters, or a combination thereof; or, the first light-transmitting pattern P1 is composed of a straight line, a curve, or a combination thereof.

[0064] As shown in FIGS. 8A and 8B, the cover plate 632 includes a light-transmitting base layer 6321 and a patterned layer 6322. The patterned layer 6322 can be disposed on the first surface of the light-transmitting base layer 6321. The structure of the patterned layer 6322 is similar to or the same as the aforementioned patterned layer 1312, and will not be described in detail herein. The second light-transmitting pattern P2 of the patterned layer 6322 is the pattern shown in FIG. 8A. The second light-transmitting pattern P2, for example, includes numbers, symbols, letters, or a combination thereof; or, the second light-transmitting pattern P2 is composed of a straight line, a curve, or a combination thereof.

[0065] As shown in FIG. 8B , the second light guide module 620 has a second light incident surface (620A1s and 620B1s) and a second light emitting surface 621u. The second light emitting surface 621u is arranged corresponding to the patterned display element 630, wherein a portion of the second light guide module 620 is arranged on the first surface 110b of the circuit board 110 and extends to one side of the patterned display element 630. The second light source (640A and 640B) is disposed on and electrically connected to the circuit board 110. The second light emitting surface (640As and 640Bs) of the second light source (640A and 640B) emits light toward the second light incident surface (620A1s and 620B1s). As shown in FIGS. 6, 7B, and 8B, the aforementioned first light emitting surface (140As and 140Bs) and the second light emitting surface (620A1s and 620B1s) face different directions.

[0066] As shown in FIG. 8B , the second light guide module 620 includes at least one second light guide member (e.g., 620A and 620B), a second connecting portion 621, at least one fifth light guide member (e.g., 620A4 and 620B4), and a sixth light guide member 622. The second light guide member 620A includes a first portion 620A1, a second portion 620A2, and a fourth light guide member 620A3, and the second light guide member 620B includes a first portion 620B1, a second portion 620B2, and a fourth light guide member 620B3. The second light guide module 620 includes the same or similar technical features as the first light guide module 320 described above. For example, the first portion 620A1, the second portion 620A2 and the fourth light guide portion 620A3 of the second light guide member 620A of the second light guide module 620 are similar to or identical to the first portion 120A1, the second portion 120A2 and the first light guide portion 220A3 of the first light guide member 220A of the first light guide module 320 in structure, and the first portion 620B1, the second portion 620B2 and the fourth light guide portion 620B3 of the second light guide member 620B are similar to or identical to the first portion 120B1, the second portion 120B2 and the first light guide portion 220B3 of the first light guide member 220B in structure, which are not described in detail here. In addition, the second connecting portion 621, the fifth light guide portion and the sixth light guide portion 622 of the second light guide module 620 are similar to or identical to the second connecting portion 321, the second light guide portion and the third light guide portion of the first light guide module 320 in structure, which are not described in detail here. One of the differences from the first light guide module 320 is that the distance between the second light guide member and the second connection portion 621 of the second light guide module 620 is larger than that between the first light guide member and the second connection portion 621 of the first light guide module 320 to accommodate more components (e.g., the circuit board 110, the reflector 350, a portion of the first light guide module 320 (e.g., the first connection portion 321), and the patterned light-transmitting layer 131). In an embodiment, the second connection portion 321 of the first light guide module 320 is located between the circuit board 110 and the second connection portion 621.

[0067] As shown in FIG. 8B , the second light source 640A faces the second light incident surface 620A1s of the first portion 620A of the second light guide member 620A, and the normal line N1 of the second light incident surface 620A1s passes through the fourth light guide portion 620A3. A The second light L2 can be incident into the second light guide member 620A through the second light incident surface 620A1s. A The light can be incident on the cover plate 632 through the fourth light guide portion 620A3, the fourth light guide portion 620A4 and the fifth light guide portion 622. Similarly, the second light source 640B faces the second light incident surface 620B1s of the first portion 620B of the second light guide member 620B. The second light L2 emitted by the second light source 640B BThe second light L2 can be incident into the second light guide member 620B through the second light incident surface 620B1s. B The light may be incident on the cover plate 632 through the fourth light guide portion 620B3 , the fourth light guide portion 620B4 , and the fifth light guide portion 622 .

[0068] In one embodiment, the first light (L1) emitted by the first light source (140A and 140B) A and L1 B ) and the second light (L2 A and L2 B ) can be different in light color or the same. The first light (L1 A and L1 B ) and the second light (L2 A and L2 B ) light color is, for example, red, green, blue or a mixture of any proportions thereof.

[0069] In this embodiment, the first light-transmitting pattern P1 (shown in FIG. 7A ) and the second light-transmitting pattern P2 (shown in FIG. 8A ) do not overlap along the Z axis. In this example, in the first light-emitting mode, the first light source (140A and 140B) can emit a first light (L1 A and L1 B ) illuminates the first light-transmitting pattern P1. In the second light-emitting mode, the second light source (640A and 640B) can emit a second light (L2 A and L2 B ) illuminates the second light-transmitting pattern P2. In one embodiment, the first light-emitting mode and the second light-emitting mode may be executed simultaneously or at different times.

[0070] In another embodiment, the first light-transmitting pattern P1 and the second light-transmitting pattern P2 may at least partially overlap along the Z-axis. In this example, the first light-transmitting pattern P1 (shown in FIG. 7A ) and the second light-transmitting pattern P2 (shown in FIG. 8A ) may be formed with transparent light-conducting ink. In the first light-emitting mode, the first light (L1) emitted by the first light source (140A and 140B) A and L1 B ) penetrates the transparent light-conducting ink located in the first light-transmitting pattern P1 to present the first light-transmitting pattern P1 as luminous. In the second light-emitting mode, the second light (L2 A and L2 B ) can penetrate the second light-transmitting pattern P2 to present the luminous second light-transmitting pattern P2. In this embodiment, the first light-emitting mode and the second light-emitting mode are not executed at the same time.

[0071] In other embodiments, the first light-transmitting pattern P1 and the second light-transmitting pattern P2 may at least partially overlap along the Z-axis direction. In this example, the aforementioned first light-transmitting pattern P1 (shown in FIG. 7A ) may be formed with a first light-guiding ink, and the second light-transmitting pattern P2 (shown in FIG. 8A ) may be formed with a second light-guiding ink, wherein the first light-guiding ink has a first color, and the second light-guiding ink has a second color. The first light source (140A and 140B) and the second light source (640A and 640B) may, for example, emit white light. In the first light-emitting mode, the first light (white light) emitted by the first light source (140A and 140B) may penetrate the first light-guiding ink located in the first light-transmitting pattern P1 to present the first light-transmitting pattern P1 having the first color. In the second light-emitting mode, the white light emitted by the second light source (640A and 640B) may penetrate the second light-transmitting pattern P2 to present the second light-transmitting pattern P2 having the second color. In this embodiment, the first light-emitting mode and the second light-emitting mode are not executed simultaneously.

[0072] In summary, the electronic device includes a circuit board, at least one light source and at least one light guide. All light sources can be arranged on the first surface (for example, the lower surface) of the circuit board, while the second surface (for example, the upper surface) of the circuit board is clear. In this way, an element (for example, a patterned display element or a reflective layer) can be evenly arranged on the second surface of the circuit board. When the electronic device is a touch display panel, the flatness of the element above the circuit board (for example, a touch circuit board) helps to improve the touch quality. In another embodiment, the electronic device further includes at least one light guide and / or at least one light guide module, which includes or has at least one microstructure and / or bevel, or is itself a microstructure and / or bevel, so as to guide the light of the light source to go around the side of the second surface of the circuit board and emit light toward the cover plate.

[0073] In summary, although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. A person skilled in the art of the present invention may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the protection scope of the patent application.

Claims

1. An electronic device, characterized in that: include: A circuit board having a first surface and a second surface; A patterned display element is disposed on the second surface of the circuit board; A first light guide member having a first light incident surface and a first light guide portion; A first light source is disposed on the first surface of the circuit board and is used for emitting a first light toward the first light incident surface, wherein a normal line of the first light incident surface passes through the first light guide portion.

2. The electronic device according to claim 1, wherein: The first light guide comprises: a first portion extending along a first direction and having the first light incident surface, the first light incident surface facing the first light source; and A second portion extends from the first portion along a second direction and has a light emitting surface, wherein the light emitting surface faces one side of the patterned display element, and the second direction is different from the first direction.

3. The electronic device according to claim 1, wherein: The patterned display element comprises: a patterned light-transmitting layer having a light-transmitting pattern, wherein the light-transmitting pattern corresponds to a light-emitting surface of the first light guide element; and A cover plate is disposed above the patterned light-transmitting layer.

4. The electronic device according to claim 1, wherein: The board includes: a substrate; and A touch circuit layer, disposed on the substrate; Wherein, the patterned display element covers the entire circuit board.

5. The electronic device according to claim 1, wherein: The first light guiding portion includes a microstructure or a slope.

6. The electronic device as claimed in claim 1, wherein: Also includes: A first light guide module includes at least one first light guide element and extends from the first surface of the circuit board to a first surface of the patterned display element.

7. The electronic device as claimed in claim 6, characterized in that: The first light guide module comprises:

2. A first light guide; and A first connecting portion connects the two first light guide components and is located directly below the patterned display component.

8. The electronic device as claimed in claim 7, characterized in that: The first light guide module further includes: a second light guiding portion connecting a second surface of the first connecting portion and a side surface of the first light guiding member; and A third light guide portion is disposed on the first connecting portion and is located directly below the patterned display element.

9. The electronic device as claimed in claim 8, characterized in that: The second light guiding portion includes an inclined surface or a microstructure, and the third light guiding portion includes a microstructure.

10. The electronic device according to claim 7, wherein: Also includes: A second light guide module, comprising:

2. A second light guide; A second connecting portion connecting the two second light guide members; Wherein, the first connecting portion is located between the circuit board and the second connecting portion.

11. The electronic device according to claim 1, wherein: Also includes: A second light guide member having a second light incident surface and a second light guide portion; a second light source, disposed on the first surface of the circuit board and configured to emit a second light beam toward the second light incident surface, wherein a normal line of the second light incident surface passes through the second light guide portion; The first light and the second light have different light colors.

12. The electronic device as claimed in claim 1, wherein: The patterned display element has a first light-transmitting pattern; the electronic device further comprises: A cover plate is disposed above the patterned display element and has a second light-transmitting pattern. The first light-transmitting pattern and the second light-transmitting pattern do not overlap along a direction.

13. An electronic device, characterized in that: include: A circuit board having a first surface and a second surface; A patterned display element is disposed on the second surface of the circuit board; A light source is disposed on the first surface of the circuit board; as well as A first light guide module extends from the first surface of the circuit board to a surface of the patterned display element.

14. The electronic device according to claim 13, wherein: The first light guide module comprises:

2. A first light guide; and A first connecting portion connects the two first light guide components and is located directly below the patterned display component.

15. The electronic device according to claim 14, wherein: The first light guide module also includes: a second light guiding portion connecting a second surface of the first connecting portion and a side surface of one of the first light guiding members; and A third light guide portion is disposed on the first connecting portion and is located directly below the patterned display element.

16. The electronic device as claimed in claim 15, characterized in that: The second light guiding portion includes an inclined surface or a microstructure, and the third light guiding portion includes a microstructure.

17. The electronic device as claimed in claim 14, characterized in that: Also includes: A second light guide module, comprising:

2. A second light guide; A second connecting portion connecting the two second light guide members; Wherein, the first connecting portion is located between the circuit board and the second connecting portion.

18. An electronic device, characterized in that: include: a patterned display element; A first light guide member having a first light incident surface; A circuit board having an opening and a first surface, wherein the opening exposes the patterned display element; A first light source is disposed on the first surface of the circuit board and adjacent to the first light incident surface; as well as A second light source is disposed on the first surface of the circuit board and corresponds to the opening.

19. An electronic device, characterized in that: include: A circuit board having a first surface and a second surface; A patterned display element is disposed on the second surface of the circuit board; A first light guide module having a first light incident surface, a first light emitting surface and a first light guide portion, wherein the first light guide portion is disposed between the first light incident surface and the first light emitting surface, and the first light emitting surface is disposed facing the patterned display element; and A first light source is disposed on and electrically connected to the circuit board, and the first light source has a first light emitting surface facing the first light incident surface.

20. The electronic device as claimed in claim 19, wherein: A portion of the first light guide module is disposed on the first surface of the circuit board and extends to one side of the patterned display element.

21. The electronic device as claimed in claim 19, wherein: The board includes: A touch circuit layer, located on the second surface; Wherein, the first light source does not overlap with the touch circuit layer.

22. The electronic device as claimed in claim 19, wherein: The first light source emits a first light from the first light-emitting surface, the first light is incident from the first light-incident surface into the first light-guiding module, and is emitted from the first light-emitting surface through the first light-guiding portion, wherein the first light-incident surface faces a first direction, and the first light-emitting surface faces a second direction different from the first direction.

23. The electronic device as claimed in claim 19, wherein: The circuit board has an opening, and the first light source is configured corresponding to the opening.

24. The electronic device as claimed in claim 19, wherein: Also includes: a second light guide module having a second light incident surface and a second light emitting surface, wherein the second light emitting surface is disposed toward the patterned display element, wherein a portion of the second light guide module is disposed on the first surface of the circuit board and extends to one side of the patterned display element; as well as A second light source is disposed on and electrically connected to the circuit board. A second light emitting surface of the second light source emits a second light toward the second light incident surface, wherein the first light emitting surface and the second light emitting surface face different directions.

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