TW201322218A - Seven-segment display - Google Patents

Abstract

A seven-segment display including a shell, a first circuit board, at least a light source and at least a pin is provided. The shell has at least an opening. The first circuit board is disposed in the shell and has a surface. The shell extends from an edge of the opening to the surface for forming a reflection cup. The light source is disposed on the surface of the first circuit board and disposed in the reflection cup to be exposed by the opening. The pin is disposed on the first circuit board, extends from the surface, and penetrated out through the shell. The extending direction of the pin is the same as the opening direction of the reflection cup.

Description

Seven-segment display

This invention relates to a display and, more particularly, to a seven-segment display.

The seven-segment display is a common electronic device that displays numbers by various light and dark combinations of seven light-emitting diode (LED) light sources, so it is called a seven-segment display. In detail, as shown in FIG. 1, the seven-segment display 50 is composed of at least four straight, three lateral light-emitting areas 52, and can display numbers from 0 to 9, and can also display English letters, including hexadecimal. English A to F (b, d is lowercase, others are uppercase). In addition to the seven-segment display, there are fourteen, sixteen, and other different numbers of displays, but generally referred to as seven-segment displays.

2 is a partial cross-sectional view of a conventional seven-segment display. Referring to FIG. 2, the conventional seven-segment display 60 includes a housing 62, a circuit board 64, a circuit board 66, pins 66, and a light source 69. The circuit board 66 can control whether the LED body 69 on the circuit board 64 is illuminated or not through the electrical connection of the pin 68. The LED source 69 is disposed on the surface 66a of the circuit board 66 and faces the opening of the housing 62. 62a, and light can be emitted to the outside through the opening 62a. As shown in FIG. 2, the pin 69 is generally configured by back-welding, and the pin 69 extends from the other surface 66b of the circuit board 66, and after bypassing the side of the housing 62, the reverse extends to Outside the housing 62, the pins 69 are connected to the circuit board 64 in a U-shaped bent configuration. Since the configuration requires the pins 69 to be bent, it takes a lot of man-hours and increases the manufacturing cost, and the overall structure has a large thickness due to the bent pins 69, which is contrary to the tendency of the electronic device to be thin.

The present invention provides a seven-segment display that reduces manufacturing costs and allows the overall structure to have a small thickness.

The present invention provides a back-weld type display which can reduce manufacturing costs and can have a small thickness of the entire structure.

The invention provides a seven-segment display comprising a casing, a first circuit board, at least one light source and at least one pin. The housing has at least one opening. The first circuit board is disposed in the housing and has a surface. The housing extends from the edge of the opening to the surface to form a reflective cup. The light source is disposed on the surface of the first circuit board and disposed in the reflective cup to be exposed by the opening. The pins are disposed on the first circuit board and extend from the surface and pass through the housing. The extension direction of the pin is the same as the opening direction of the reflector cup.

In one embodiment of the invention, the aforementioned pins extend straight from the surface to the housing.

In one embodiment of the present invention, the seven-segment display further includes a second circuit board disposed on the housing, wherein the pins are connected from the housing to the second circuit board.

In an embodiment of the present invention, the seven-segment display further includes a diaphragm disposed on the housing and covering the opening, wherein at least a portion of the diaphragm is translucent and opposite to the opening, and the other portion of the diaphragm is Non-transparent.

In an embodiment of the invention, the edge of the diaphragm has a notch, and the pin is connected to the second circuit board through the notch.

The invention further provides a seven-segment display comprising a housing, a first circuit board, at least one light source and at least one pin. The housing has at least one opening. The first circuit board is disposed in the housing and has a surface. The light source is disposed on a surface of the first circuit board and exposed by the opening. The pins are disposed on the first circuit board and extend from the surface and pass through the housing. The pins extend straight from the surface to the housing.

In an embodiment of the invention, the light source is a light emitting diode light source or a laser diode light source.

In one embodiment of the present invention, the seven-segment display further includes a diaphragm disposed in the housing and covering the opening, wherein at least a portion of the diaphragm is translucent and opposite to the opening, and the other portions of the diaphragm are non- Light transmission.

In one embodiment of the present invention, the seven-segment display further includes a second circuit board disposed on the housing, wherein the pins are connected from the housing to the second circuit board.

In one embodiment of the present invention, the seven-segment display further includes a cover covering the second circuit board and the casing, wherein at least part of the cover is made of a light transmissive material.

Based on the above, in the seven-segment display of the present invention, the light source is located on the surface of the first circuit board, and the pins extend from the surface of the first circuit board and pass through the housing. Thereby, the pin does not need to extend from the other surface of the first circuit board to the outside of the casing and is bent, which simplifies the process to save manufacturing cost, and can make the overall structure have a small thickness and increase the interior of the seven-segment display. Configuration space.

The above described features and advantages of the present invention will be more apparent from the following description.

3 is a cross-sectional view of a seven-segment display in accordance with an embodiment of the present invention. 4 is a front elevational view of a portion of the components of the seven-segment display of FIG. 3. In order to make the illustration clearer, FIG. 4 does not show the second circuit board 150 and the cover 170 of FIG. Referring to FIG. 3 and FIG. 4 , the seven-segment display 100 of the present embodiment includes a housing 110 , a first circuit board 120 , at least one light source 130 (shown in FIG. 4 ), and at least one pin 140 . 4 is a plurality of) and a second circuit board 150. The housing 110 has at least one opening 112 (a plurality of which are illustrated in FIG. 4). The first circuit board 120 is disposed within the housing 110 and has a surface 122. The housing 110 extends from the edge of the opening 112 toward the surface 122 to form a plurality of reflective cups 112a (one is illustrated in Figure 3). These light sources 130 are, for example, light emitting diode light sources and are disposed on the surface 122 of the first circuit board 120. Each light source 130 is located in the corresponding reflective cup 112a and is exposed by the corresponding opening 112, respectively. The second circuit board 150 is disposed on the housing 110.

As shown in FIG. 3, each pin 140 is disposed on the first circuit board 120 and extends from the surface 122 to the housing 110. For example, the pins 140 extend straight to the housing 110 in a manner perpendicular to the surface 122. Each of the pins 140 extends from the surface 122 to the housing 110 in the same direction as the opening of the reflector cup 112a, and each of the pins 140 passes through the housing 110 to be electrically connected to the second circuit board 150, so that the second circuit board 150 can control whether each light source 130 emits light or not through the electrical connection of each pin 140. Under this configuration, each of the pins 140 can be smoothly connected to the second circuit board 150 without extending from the other surface 124 of the first circuit board 120 to the outside of the housing 110 and being bent. Thereby, the process can be simplified to save manufacturing costs, and the overall structure can be made to have a small thickness, and the configuration space inside the seven-segment display 100 can be increased. In addition, by the shielding and reflection of the reflective cup 112a, the light emitted by the light source 130 can be prevented from being diverged into the interior of the housing 110, so that the light can be completely projected from the opening 112.

In the present embodiment, the openings 112 include a plurality of straight openings, a plurality of lateral openings, and two dot openings as shown in FIG. 4, thereby forming four 8-shaped light-emitting regions and two dot-shaped light-emitting regions. By the illumination of each light source 130, various numbers or combinations of English letters can be displayed. In other embodiments, the opening 112 and the light source 130 may be other suitable numbers and forms, and the invention is not limited thereto.

In this embodiment, the material of the housing 110 may be an insulating material, such as polycarbonate resin (PC), polyphenylene oxide (PPO), polyphthalamide (poly The phthalamide (PPA) or other suitable material is not limited by the present invention.

In the embodiment, the seven-segment display 100 further includes a diaphragm 160. As shown in FIG. 3 , the housing 110 includes a convex portion 110 a and a concave portion 110 b . The diaphragm 160 is disposed on the convex portion 110 a of the housing 110 and covers each opening 112 . The pin is electrically connected to the second circuit board 150 outside the recess 110b of the housing 110. In an embodiment, the surface of the second circuit board 150 is substantially aligned with the surface of the protrusion 110a. The diaphragm 160 is translucent to a plurality of portions of the openings 112 such that light emitted by the light source 130 can reach the outside, and other portions of the diaphragm 160 are non-transmissive and can be black or other darker colors. (The color of the diaphragm 160 is not shown in FIG. 4) to set off the brightness of the light source 130. In addition, the seven-segment display 100 of the embodiment further includes a cover 170. The cover 170 covers the second circuit board 150 and the housing 110, and at least part of the cover 170 is made of a light transmissive material, so that the user can view the information displayed by the seven-segment display 100 at the openings 112.

In the present embodiment, the material of the diaphragm 160 is, for example, polycarbonate resin (PC), polyethylene terephthalate (PET) or other suitable materials, which is not limited by the present invention.

Figure 5 is a cross-sectional view of a seven-segment display in accordance with another embodiment of the present invention. Figure 6 is a front elevational view of a portion of the display of the seven segment display of Figure 5. In order to make the illustration clearer, FIG. 6 does not show the second circuit board 250 and the cover 270 of FIG. Referring to FIG. 5 and FIG. 6 , the seven-segment display 200 of the present embodiment includes a housing 210 , a first circuit board 220 , at least one light source 230 (shown in FIG. 6 ), and at least one pin 240 (FIG. 6 and FIG. 6 shows a plurality of) and the second circuit board 250. The housing 210 has at least one opening 212 (a plurality of which are illustrated in FIG. 6). The first circuit board 220 is disposed within the housing 210 and has a surface 222. These light sources 230 are, for example, light emitting diode light sources and are disposed on the surface 222 of the first circuit board 220 and are exposed by the openings 212, respectively. The second circuit board 250 is disposed on the housing 210.

As shown in FIG. 5, each pin 240 is disposed on the first circuit board 220 and extends from the surface 222 to the housing 210, such as the pin 240 extending straight to the housing 210 in a manner perpendicular to the surface 222. The pins 240 are electrically connected to the second circuit board 250 and the second circuit board 250 is electrically connected to the pins 240 to control whether the light sources 230 are illuminated or not. Under this configuration, each of the pins 240 can be smoothly connected to the second circuit board 250 without extending from the other surface 224 of the first circuit board 220 to the outside of the housing 210 and being bent. Thereby, the manufacturing process can be simplified to save manufacturing costs, and the overall structure can be made to have a small thickness, and the configuration space inside the seven-segment display 200 can be increased.

In this embodiment, the openings 212 include a plurality of straight openings, a plurality of lateral openings, and two dot openings as shown in FIG. 6, thereby forming four 8-shaped light-emitting regions and two dot-shaped light-emitting regions. By the illumination of each light source 230, various numbers or combinations of English letters can be displayed. In other embodiments, the opening 212 and the light source 230 may be other suitable numbers and forms, and the invention is not limited thereto.

In this embodiment, the material of the housing 210 may be an insulating material, such as polycarbonate resin (PC), polyphenylene oxide (PPO), polyphthalamide (poly The phthalamide (PPA) or other suitable material is not limited by the present invention.

Referring to FIG. 5, in detail, the second circuit board 250 in this embodiment has a slot 252. The slot 252 exposes each opening 212 and each of the light sources 230, so that the light emitted by each light source 230 passes through the corresponding opening 212. The slot 252 reaches the outside world. In another embodiment of the present invention, the slot 252 is formed of a light-transmissive material to cover the slot 252, so that the light emitted by the light source 230 can pass through the corresponding opening 212 and the slot 252 to the outside. A dustproof effect is achieved on the casing of the present invention.

In the embodiment, the seven-segment display 200 further includes a diaphragm 260. The diaphragm 260 is disposed on the housing 210 and covers each of the openings 212. The diaphragm 260 is translucent to portions of the openings 212 such that light from the source 230 can reach the outside, and other portions of the diaphragm 260 are non-transmissive and can be black or other darker colors. (The color of the diaphragm 260 is not shown in FIG. 6) to set off the brightness of the light source 230. The edge of the diaphragm 260 of the present embodiment has a notch 262 that can pass through the notch 262 to connect to the second circuit board 250. In addition, the seven-segment display 200 of the embodiment further includes a cover 270. The cover 270 covers the second circuit board 250 and the housing 210, and at least part of the cover 270 is made of a light transmissive material, so that the user can view the information displayed by the seven-segment display 200 at the openings 212.

In the present embodiment, the material of the diaphragm 260 is, for example, polycarbonate resin (PC), polyethylene terephthalate (PET) or other suitable materials, which is not limited by the present invention.

As shown in FIG. 5, in the present embodiment, the housing 210 extends from the edge of the opening 212 toward the surface 222 to form a plurality of reflective cups 212a (one is illustrated in FIG. 5). Each of the light sources 230 is located in the corresponding reflective cup 212a and is exposed by the corresponding opening 212, and each of the pins 240 extends in the same direction as the opening of the reflective cup 212a. By blocking and reflecting the reflective cup 212a, the light emitted by the light source 230 can be prevented from being diverged into the interior of the housing 210, so that the light can be completely projected from the opening 212.

Figure 7 is a cross-sectional view of a seven-segment display in accordance with another embodiment of the present invention. Referring to FIG. 7, in the seven-segment display 300 of the embodiment, the structure of the housing 310, the circuit board 320, the light source 330, the pins 340, the diaphragm 360, and the cover 370 are the same as those of the housing of FIG. The structure and arrangement of the circuit board 220, the light source 230, the pin 240, the diaphragm 260, and the cover 270 are not described herein. The difference between the seven-segment display 300 and the seven-segment display 200 is that the circuit board 250 of the seven-segment display 200 has a slot 252 for exposing the light source 230 as a light-transmitting area, and the circuit board 350 of the seven-segment display 300 does not have light transmission. Zone or slot. The circuit board 350 has an appropriate size as shown in FIG. 7 and is electrically connected to the pin 340 in an appropriate position.

In the above embodiments, the light source may be a semiconductor light source, such as a light emitting diode source or a laser diode source. In addition, the light source may be a surface mounted device (SMD) type light source or a chip on board (COB) type light source. The light emitting diode light source described in the above embodiments may be a white light emitting diode, and the white light emitting diode may include a blue light emitting diode chip and a yellow fluorescent powder, and may further include a red light emitting diode. Wafer or red phosphor powder. In addition, the white light emitting diode may include red, green, and blue light emitting diode chips, and may further include yellow phosphor powder, and further may include red phosphor powder. In addition, the white light emitting diode may include a red, green or blue light emitting diode. The phosphor powder is distributed in the light-transmitting colloid described in the above embodiment in a uniform, non-uniform or concentration gradient manner.

In the above embodiments, the housing may be coated with a reflective material in the region of the reflective cup. Additionally, the housing can be an integrally formed reflective material.

In summary, in the seven-segment display of the present invention, the light source is located on the surface of the first circuit board, and the pins extend from the surface of the first circuit board and pass through the housing. Thereby, the pins can be smoothly connected to the second circuit board without extending from the other surface of the first circuit board to the outside of the casing and being bent. Thereby, the process can be simplified to save manufacturing costs, and the overall structure can be made to have a small thickness and the configuration space inside the seven-segment display can be increased.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

50, 60, 100, 200, 300. . . Seven-segment display

52. . . Luminous area

62, 110, 210, 310. . . case

62a, 112, 212. . . Opening

64, 66, 120, 150, 220, 250, 320, 350. . . Circuit board

66a, 66b, 122, 222, 124, 224. . . surface

68, 140, 240, 340. . . Pin

69, 130, 230, 330. . . light source

110a. . . Convex

110b. . . Concave

112a, 212a. . . Reflective cup

252. . . Slotting

160, 260, 360. . . Diaphragm

170, 270, 370. . . Cover

262. . . gap

1 is a schematic diagram of a conventional seven-segment display.

2 is a partial cross-sectional view of a conventional seven-segment display.

3 is a cross-sectional view of a seven-segment display in accordance with an embodiment of the present invention.

4 is a front elevational view of a portion of the components of the seven-segment display of FIG. 3.

Figure 5 is a cross-sectional view of a seven-segment display in accordance with another embodiment of the present invention.

Figure 6 is a front elevational view of a portion of the display of the seven segment display of Figure 5.

Figure 7 is a cross-sectional view of a seven-segment display in accordance with another embodiment of the present invention.

100. . . Seven-segment display

110. . . case

110a. . . Convex

110b. . . Concave

112. . . Opening

120, 150. . . Circuit board

122, 124. . . surface

140. . . Pin

130. . . light source

112a. . . Reflective cup

160. . . Diaphragm

170. . . Cover

Claims (10)

A seven-segment display comprising: a housing having at least one opening; a first circuit board disposed in the housing and having a surface from the opening extending toward the surface to form a reflective cup; at least one light source And being disposed on the surface of the first circuit board and disposed in the reflective cup to be exposed by the opening; and at least one pin disposed on the first circuit board and extending from the surface, and being worn from the housing The pin extends in the same direction as the opening of the reflector cup. A seven-segment display as claimed in claim 1, wherein the pin extends straight from the surface to the housing. The seven-segment display of claim 1, further comprising a second circuit board disposed on the housing, wherein the pin passes through the housing and is electrically connected to the second circuit board. The seven-segment display of claim 3, further comprising a diaphragm disposed on the housing and covering the opening, wherein at least a portion of the diaphragm is translucent and located opposite the opening. The seven-segment display of claim 4, wherein the diaphragm has a notch through which the pin is connected to the second circuit board. A seven-segment display comprising: a housing having at least one opening; a first circuit board disposed in the housing and having a surface; at least one light source disposed on the surface of the first circuit board and being An opening is exposed; and at least one pin is disposed on the first circuit board and extends from the surface and exits from the housing, wherein the pin extends straight from the surface to the housing. The seven-segment display of claim 1 or 6, wherein the light source is a light-emitting diode light source or a laser diode light source. The seven-segment display of claim 6, further comprising a diaphragm disposed on the housing and covering the opening, wherein at least a portion of the diaphragm is translucent and is located at the opening. The seven-segment display of claim 6, further comprising a second circuit board disposed on the housing, wherein the pin passes through the housing and is electrically connected to the second circuit board. The seven-segment display of claim 3 or 9, further comprising a cover covering the second circuit board and the casing, wherein at least part of the cover is made of a light transmissive material.