Lighting device and portable object with the same

Abstract

Lighting device comprising: a flexible printed circuit board comprising a first connecting component and a second connecting component; a battery arranged on the flexible printed circuit board, wherein the first connecting component extends along a side wall of the battery and is connected to a first electrode of the battery, and the second connecting component is connected to a second electrode of the battery without circumventing the side wall of the battery;a plurality of predetermined-color light-emitting diodes arranged on the flexible printed circuit board and electrically coupled to the battery, wherein the plurality of predetermined-color light-emitting diodes comprises a first predetermined-color light-emitting diode and a second predetermined-color light-emitting diode, the first predetermined-color light-emitting diode comprising a first light-emitting diode chip and a first phosphor layer coated onto the first light-emitting diode chip, the second predetermined-color light-emitting diode comprising a second light-emitting diode chip, wherein each of the predetermined-color light-emitting diodes has the same or substantially the same drive voltage; a sensor arranged on the flexible printed circuit board and configured to detect an external force in order to generate a control signal;and a control chip arranged on the flexible circuit board and electrically coupled to the sensor, the plurality of light-emitting diodes of predetermined color and the battery, wherein the control chip is configured to receive the control signal from the sensor and to select an illumination mode according to the control signal in order to control the plurality of light-emitting diodes of predetermined color so that they emit light.

Description

BACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates to a lighting device, particularly to a lighting device integrated with a light emitting diode of predetermined color, a sensor and a chip on a flexible printed circuit board.2. Description of the Prior ArtAs technology continues to develop, demand for portable devices also increases. Portable devices not only provide practical functions, but may also serve as decorative accessories. For example, in recent years, lighting devices have been integrated into shoes that not only warn pedestrians but can also serve as a decorative effect.However, in shoes, rigid circuit boards are typically used to provide the lighting function in the related art, which means that battery and controllers are disposed on the rigid circuit boards, and the light emitting diodes of predetermined color (such as LED chips) are connected to the rigid circuit boards via wires. Since rigid printed circuit boards must be packaged, they are usually placed in the shoe sole. However, rigid circuit boards placed in the shoe sole increase the weight of the shoes, take up space and complicate the installation process. Once installed in the shoe, the conventional rigid circuit boards cannot be updated or otherwise set with new lighting modes.When the rigid circuit boards are constructed in prior art shoes, additional external wires are needed to electrically connect multiple light emitting diodes of a predetermined color to the rigid circuit boards. However, when more lighting devices or multiple lighting modes are required, more external wires are needed to meet the design requirements. Further, when the light emitting diodes of predetermined color need to be placed differently, wires of different lengths are required. These problems lead to inconvenience in production and installation, add significant weight to the shoes, and may affect their comfort and appearance.Furthermore, shoes with lighting functions according to the prior art are generally used with light emitting diodes of different colors with a predetermined color. For example, lighting components that emit red, yellow, yellow-green, or orange light (such as red, yellow, and orange LED chips) require a lower driving voltage or operating voltage Vf (e.g., 1.8 to 2.4 V). While a lighting component that emits blue light, such as a blue LED chip, requires a higher driving or operating voltage Vf (e.g., 3 V). When the red light emitting component of the shoe is activated, the lighting device needs to output the driving voltage corresponding to the operating voltage Vf of the red light emitting component. However, when the lighting device switches to the emission of the blue lighting component, the lighting device needs to output a higher driving voltage to drive the blue lighting chip, thereby increasing the complexity of the power supply circuit design. On the other hand, when the red LED chip lights with lower Vf, the chip controls the battery voltage to reach the low Vf voltage and emit the red LED. However, when the blue LED needs to emit light, the battery voltage has not been sufficiently recovered. Therefore, the blue LED chip with high Vf does not light up, resulting in insufficient durability.Therefore, it is necessary to provide a lighting device that effectively simplifies and lightens the circuit board and is easily replaced with the related art.SUMMARY OF THE INVENTIONTherefore, the present invention provides a lighting device to solve the problems of the related art.According to an embodiment of the present invention, the lighting device includes a flexible circuit board, a battery, a plurality of light emitting diodes having a predetermined color, a sensor, and a control chip. The battery is disposed on the flexible circuit board. The flexible circuit board includes a first connection component and a second connection component. Wherein the first connection component extends along a sidewall of the battery and is connected to a first electrode of the battery, and the second connection component is connected to a second electrode of the battery without bypassing the sidewall of the battery. The plurality of light emitting diodes having a predetermined color are disposed on the flexible circuit board and electrically coupled to the battery. The plurality of light emitting diodes having a predetermined color include a first light emitting diode having a predetermined color and a second light emitting diode having a predetermined color. The first light emitting diode having a predetermined color includes a first light emitting diode chip and a first phosphor layer coated on the first light emitting diode chip. The second light emitting diode having a predetermined color includes a second light emitting diode chip. wherein each of the light emitting diodes having a predetermined color has the same or substantially the same driving voltage. The sensor is disposed on the flexible circuit board and configured to detect an external force to generate a control signal. The control chip is disposed on the flexible circuit board and electrically coupled to the sensor, the plurality of light emitting diodes having a predetermined color, and the battery. The control chip is configured to receive the control signal from the sensor and select a lighting mode according to the control signal to control the plurality of light emitting diodes having a predetermined color to emit light.Wherein, an illumination color of the first light emitting diode having a predetermined color is different from the illumination color of the second light emitting diode having a predetermined color. Wherein the illumination color of the first light emitting diode is tinted red, tinted green, tinted yellow, tinted orange, tinted cyan, tinted lime green, tinted violet, tinted pink, tinted ice blue, tinted white with a predetermined color. Wherein the first light emitting diode chip and the second light emitting diode chip are blue light emitting diode chips, and the second light emitting diode of predetermined color is not coated with a phosphor layer.Wherein the plurality of light emitting diodes of predetermined color further includes a third light emitting diode of predetermined color. The third light emitting diode having a predetermined color includes a third light emitting diode chip and a third phosphor layer coated on the third light emitting diode chip. Wherein, an illumination color of the third light emitting diode having a predetermined color is different from the light color of the second light emitting diode having a predetermined color.Wherein the illumination color of the first light emitting diode is tinted orange, tinted cyan, tinted lime green, tinted violet, tinted pink, tinted ice blue, or tinted white with a predetermined color. The second light emitting diode of predetermined color further includes a second phosphor layer coated on the second light emitting diode chip, and the illumination color of the second light emitting diode of predetermined color is tinted orange, tinted cyan, tinted lime green, tinted violet, tinted pink, tinted ice blue, or tinted white. Wherein the first light emitting diode chip and the second light emitting diode chip are blue light emitting diode chips.Wherein the plurality of light emitting diodes having a predetermined color are disposed on a first side of the flexible circuit board, and the battery is disposed on a second side of the flexible circuit board corresponding to the first side. An end of the first connection component is soldered to the first side of the flexible circuit board, and an end of the second connection component is soldered to the first side of the flexible circuit board, and the second connection component passes through the flexible circuit board.Wherein the flexible circuit board has a cavity, and the sensor is disposed within the cavity, wherein the width of the cavity is less than the width of the sensor.Wherein a housing of the sensor is electrically connected to a first side of the flexible circuit board, and an electrode of the sensor is electrically connected to the first side or a second side of the flexible circuit board.Wherein the maximum width of the flexible circuit board is equal to or greater than the diameter of the battery.Wherein the lighting mode includes a sequential blinking mode, a synchronous blinking mode, a reciprocation blinking mode, an alternate blinking mode, a running light blinking mode, a gradually lightening and lightening mode, and a gradually lightening and lightening mode.The present invention provides another lighting device including a circuit board, a battery, a plurality of light emitting diodes having a predetermined color, a sensor, and a control chip. The battery is disposed on the circuit board. The plurality of light emitting diodes having a predetermined color are electrically coupled to the battery. The plurality of light emitting diodes having a predetermined color include a first light emitting diode having a predetermined color and a second light emitting diode having a predetermined color. The first light emitting diode having a predetermined color includes a first light emitting diode chip and a first phosphor layer coated on the first light emitting diode chip. The second light emitting diode having a predetermined color includes a second light emitting diode chip. wherein each of the light emitting diodes having a predetermined color has the same or substantially the same driving voltage. The sensor is disposed on the circuit board and configured to detect an external force to generate a control signal. The control chip is disposed on the circuit board and electrically coupled to the sensor, the plurality of light emitting diodes having a predetermined color, and the battery. The control chip is configured to receive the control signal from the sensor and select a lighting mode according to the control signal to drive the plurality of light emitting diodes having a predetermined color according to the control signal to emit light according to the control signal. Wherein the illumination mode includes a first illumination sequence and a second illumination sequence following the first illumination sequence. The plurality of light emitting diodes having a predetermined color emit light at a first blinking frequency in the first lighting sequence. The plurality of light emitting diodes having a predetermined color further emit light having a second frequency in the second lighting sequence. Wherein the second blinking frequency is different from the first blinking frequency.Wherein each of the first light emitting diode chip and the second light emitting diode chip is a blue light emitting diode chip, and the second light emitting diode of a predetermined color is not coated with a phosphor layer.Wherein the plurality of light emitting diodes of predetermined color further includes a third light emitting diode of predetermined color. The third light emitting diode having a predetermined color includes a third light emitting diode chip and a third phosphor layer coated on the third light emitting diode chip. Wherein an illumination color of the third light emitting diode having a predetermined color is different from an illumination color of the second light emitting diode having a predetermined color, and the third light emitting diode chip is a blue light emitting diode chip.Wherein the plurality of light emitting diodes having a predetermined color sequentially emit light at the first blinking frequency in the first lighting sequence. Wherein the plurality of light emitting diodes having a predetermined color sequentially emit light having a second frequency in the second illumination sequence. Wherein the second blinking frequency is a gradually changing frequency.Wherein, the lighting duration is the same for each light emitting diode of predetermined color in the first lighting sequence, and two lighting durations of two adjacent light emitting diodes of predetermined color are continuous, or a non-lighting period is between the two lighting durations of the two adjacent light emitting diodes of predetermined color.Wherein the plurality of light emitting diodes of predetermined color emit light sequentially N times at the first blinking frequency in the first lighting sequence, and the plurality of light emitting diodes of predetermined color emit light simultaneously at the second blinking frequency in the second lighting sequence.The present invention provides another lighting device including a circuit board, a battery, a plurality of light emitting diodes having a predetermined color, a sensor, a counter, and a control chip. The battery is disposed on the circuit board. The plurality of light emitting diodes having a predetermined color are electrically coupled to the battery. The plurality of light emitting diodes having a predetermined color include a first light emitting diode having a predetermined color and a second light emitting diode having a predetermined color. The first light emitting diode having a predetermined color includes a first light emitting diode chip and a first phosphor layer coated on the first light emitting diode chip. The second light emitting diode having a predetermined color includes a second light emitting diode chip. wherein each of the light emitting diodes having a predetermined color has the same or substantially the same driving voltage. The sensor is disposed on the circuit board and configured to detect an external force to generate a control signal. The counter is configured to count the number of control signals generated by the sensor to selectively generate a count signal. The control chip is disposed on the circuit board and electrically coupled to the sensor, the counter, the plurality of light emitting diodes having a predetermined color, and the battery. Wherein the control chip includes a storage device in which a plurality of lighting modes are stored, and the control chip selects one lighting mode from the plurality of lighting modes to control the plurality of light emitting diodes of a predetermined color to emit light according to the control signal and the count signal.Wherein each of the first light emitting diode chip and the second light emitting diode chip is a blue light emitting diode chip, and the second light emitting diode of a predetermined color is not coated with a phosphor layer.Wherein the plurality of light emitting diodes of predetermined color further includes a third light emitting diode of predetermined color. The third light emitting diode having a predetermined color includes a third light emitting diode chip and a third phosphor layer coated on the third light emitting diode chip. Wherein the light color of the third light emitting diode having a predetermined color is different from the light color of the second light emitting diode having a predetermined color, and the third light emitting diode chip is a blue light emitting diode chip.Wherein the lighting mode includes a sequential blinking mode, a synchronous blinking mode, a reciprocation blinking mode, an alternate blinking mode, a running light blinking mode, a gradually lightening and lightening mode, and a gradually lightening and lightening mode.The present invention provides another lighting device including a circuit board, a battery, a plurality of light emitting diodes having a predetermined color, a sensor, and a control chip. The battery is disposed on the circuit board. The plurality of light emitting diodes having a predetermined color are electrically coupled to the battery. The plurality of light emitting diodes having a predetermined color include a first light emitting diode having a predetermined color, a second light emitting diode having a predetermined color, and a third light emitting diode having a predetermined color. The first light emitting diode having a predetermined color includes a first light emitting diode chip and a first phosphor layer coated on the first light emitting diode chip. The second light emitting diode having a predetermined color includes a second light emitting diode chip. The third light emitting diode having a predetermined color includes a third light emitting diode chip and a third phosphor layer coated on the third light emitting diode chip. wherein each of the light emitting diodes having a predetermined color has the same or substantially the same driving voltage. The sensor is disposed on the circuit board and configured to detect an external force to generate a control signal. The control chip is disposed on the circuit board and electrically coupled to the sensor, the plurality of light emitting diodes having a predetermined color, and the battery. Wherein the control chip is configured to receive the control signal from the sensor and select a lighting mode to drive the plurality of light emitting diodes of predetermined color to emit light according to the control signal. Wherein the illumination mode includes a first illumination sequence and a second illumination sequence following the first illumination sequence. The plurality of light emitting diodes having a predetermined color sequentially emit light at least once in the first lighting sequence. The plurality of light emitting diodes having a predetermined color simultaneously emit light at least once in the second lighting sequence.Wherein the second light emitting diode of predetermined color is not coated with a phosphor layer. The first light emitting diode chip, the second light emitting diode chip, and the first light emitting diode chip are blue light emitting diode chips. Wherein, an illumination color of the first light emitting diode having a predetermined color and an illumination color of the third light emitting diode having a predetermined color are different from an illumination color of the second light emitting diode having a predetermined color.Wherein the first side and the second side of the flexible circuit board each include a plurality of circuit lines laid flat on the flexible circuit board, and the battery, the sensor, the plurality of light emitting diodes having a predetermined color, and the control chip are electrically connected via the circuit lines.Wherein the plurality of light emitting diodes of predetermined color are blue light emitting diode chips.Wherein the lighting mode includes an alternating flashing mode and a running light flashing mode. In the alternating blinking mode, the control chip controls the plurality of light emitting diodes of predetermined color to blink alternately. In the running light blink mode, the control chip controls the plurality of light emitting diodes of predetermined color to sequentially blink in a running light manner.Wherein, when the control chip selects the moving light flash mode, the control chip controls each light emitting diode of a predetermined color to sequentially emit light once to form an illumination cycle, and repeats the illumination cycle N times, where N is an integer greater than 0.Wherein, when the control chip selects the moving light flash mode, the control chip controls each light emitting diode of a predetermined color to sequentially emit light once in reverse order after emitting light once in the sequence to form an illumination cycle, and repeats the illumination cycle N times, where N is an integer greater than 0.Wherein, when the control chip selects the alternating blinking mode, the control chip controls each second light emitting diode of a predetermined color to sequentially emit light twice to form one lighting cycle, and repeats the lighting cycle N times, where N is an integer greater than 0.Wherein the illumination mode further includes a first illumination sequence and a second illumination sequence. The control chip controls the light emitting diodes of a predetermined color to emit light at a fixed frequency according to the first illumination sequence and then at a progressively changing frequency according to the second illumination sequence.The present invention provides another lighting device including a sensor, a plurality of light emitting diodes having a predetermined color, and a control chip. The sensor is configured to detect an external force to generate a control signal. Each predetermined color light emitting diode is selectively coated with a phosphor so that the predetermined color light emitting diodes emit light of a different color after the phosphor absorbs light of a predetermined color from the predetermined color light emitting diode, and each of the predetermined color light emitting diodes has the same or substantially the same driving voltage. The control chip is electrically connected to the sensor and the light emitting diodes of predetermined color. The control chip stores a lighting mode. The control chip receives the control signal from the sensor and selects a lighting mode according to the control signal to control the plurality of light emitting diodes of predetermined color to emit light.Wherein the light emitting diodes of predetermined color are blue light emitting diodes.Wherein the control chip controls each light emitting diode of a predetermined color to sequentially emit light once to form an illumination cycle, and repeats the illumination cycle N times, where N is an integer greater than 0.Wherein the control chip controls each light emitting diode of predetermined color to sequentially emit light once in reverse order after emitting light once in the sequence to form an illumination cycle, and repeats the illumination cycle N times, where N is an integer greater than 0.Wherein the control chip controls each second light emitting diode of a predetermined color to sequentially emit light twice to form an illumination cycle, and repeats the illumination cycle N times, where N is an integer greater than 0.The present invention provides another lighting device including a sensor, a plurality of light emitting diodes having a predetermined color, and a control chip. The sensor is configured to detect an external force to generate a control signal. Each predetermined color light emitting diode is selectively coated with a phosphor so that the predetermined color light emitting diodes emit light of a different color after the phosphor absorbs light of a predetermined color from the predetermined color light emitting diode, and each of the predetermined color light emitting diodes has the same or substantially the same driving voltage. The control chip is electrically connected to the sensor and the light emitting diodes of predetermined color. The control chip further stores a first illumination sequence and a second illumination sequence. The control chip receives the control signal generated by the sensor and controls the light emitting diodes of a predetermined color to emit light according to the first illumination sequence at a fixed frequency, followed by light according to the second illumination sequence at a progressively changing frequency.Wherein the light emitting diodes of predetermined color are blue light emitting diodes.The present invention provides a portable object with illumination function including a portable object body and a lighting device disposed on the portable object body. The lighting device includes a flexible circuit board, a battery, a plurality of light emitting diodes having a predetermined color, a sensor, and a control chip. The flexible circuit board includes a first connection component and a second connection component. The battery is disposed on the flexible circuit board. Wherein the first connection component extends along a sidewall of the battery and is connected to a first electrode of the battery, and the second connection component is connected to a second electrode of the battery without bypassing the sidewall of the battery. The plurality of light emitting diodes having a predetermined color are disposed on the flexible circuit board and electrically coupled to the battery. The plurality of light emitting diodes having a predetermined color include a first light emitting diode having a predetermined color and a second light emitting diode having a predetermined color. The first light emitting diode having a predetermined color, comprising a first light emitting diode chip and a first phosphor layer coated on the first light emitting diode chip. The second light emitting diode having a predetermined color, comprising a second light emitting diode chip. wherein each of the light emitting diodes having a predetermined color has the same or substantially the same driving voltage. The sensor is disposed on the flexible circuit board and configured to detect an external force to generate a control signal. The control chip is disposed on the flexible circuit board and electrically coupled to the sensor, the plurality of light emitting diodes having a predetermined color, and the battery. The control chip is configured to receive the control signal from the sensor and select a lighting mode according to the control signal to control the plurality of light emitting diodes having a predetermined color to emit light.In summary, the present invention provides a lighting device that can be placed directly on the surface of the flexible circuit board without having to pass external wires through the circuit lines in the flexible circuit board, thereby greatly reducing the overall size. In addition, the lighting device of the present invention can provide multiple lighting modes without increasing the complexity of the circuit or adding external wires to allow the chip to select the corresponding lighting mode according to the control signal detected by the sensor.BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGSFIG. 1 is a structural schematic diagram illustrating a lighting device in an embodiment of the present invention. FIG. 2 is a structural schematic diagram illustrating the lighting device of FIG. 1 in another perspective view. FIG. 3 is a structural schematic diagram illustrating the lighting device of FIG. 1 in another perspective view. FIG. 4 is a structural schematic diagram illustrating a lighting device in another embodiment of the present invention. FIG. 5 is a cross-sectional diagram illustrating the lighting device taken along line A-A of FIG. 4 in another perspective view. FIG. 6 is a structural schematic diagram illustrating the lighting device of FIG. 4 in another perspective view. FIG. 7A is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color according to FIG. 1. FIG. 7B is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7C is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7D is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7E is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color according to FIG. 1. FIG. 7F is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7G is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7H is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color according to FIG. 1. FIG. 8 is a schematic diagram illustrating the portable object with illumination function in an embodiment of the present invention.DETAILED DESCRIPTION OF THE INVENTIONIn order to more easily and clearly understand the advantages, spirit, and features of the present invention, the detailed descriptions and discussions will be made later on the embodiments and with reference to the diagrams. It should be noted that these embodiments are merely representative embodiments of the present invention, and the specific methods, apparatuses, conditions, materials, and the like are not limited to the embodiments of the present invention or corresponding embodiments. Moreover, the devices in the figures are used only to express their respective positions and are not drawings according to their actual proportions.In the description of the present invention, it is to be understood that the orientations or positional relationships of the terms "longitudinal, lateral, upper / r / s, lower / r / s, front, rear, left, right, upper, lower, inner / r / s, outer / r / s", and the like correspond to the orientation or positional relationship illustrated in the drawings. This is merely for better illustration of the description of the present invention and the description of the present invention and is not intended to indicate or imply that the device or component in question has a particular orientation, is constructed and operated in a particular orientation, and is therefore not to be understood as limiting the invention.In this regard, see FIGS. 1 and 2, FIG. 1 is a structural schematic diagram illustrating a lighting device 1 in an embodiment of the present invention. FIG. 2 is a structural schematic diagram illustrating the lighting device 1 of FIG. 1 in another perspective view. As illustrated in FIGS. 1 and 2, lighting device 1 includes flexible board 11 (length: L; width: W), battery 12, a plurality of light emitting diodes 131, 132, 133, 134, 135, 136 of predetermined color, sensor 14, and control chip 15. The width W of the flexible circuit board 11 is smaller than the width or diameter of the battery 12. the sensor 14 may be a motion sensor and used to detect external forces to generate control signals. The control chip 15 is connected to the battery 12, the light emitting diodes 131∼136 of predetermined color, and the sensor 14. The control chip 15 selects an illumination mode according to the control signal or sensor signal detected by the sensor 14, and supplies current from the battery 12 to drive the light emitting diodes 131∼136 of a predetermined color to emit light according to the illumination mode.In practice, the flexible printed circuit board (FPCB) is a double-sided circuit board. In this regard, see FIGS. 1, 2 and 3. FIG. 3 is a structural schematic diagram illustrating the lighting device 1 of FIG. 1 in another perspective view. As shown in FIG. 2, the light emitting diodes 131- 136 having a predetermined color and the sensor 14 are disposed on the first side 111 of the flexible circuit board 11; as shown in FIG. 3, the control chip 15 and the battery 12 may be disposed on the second side 112 corresponding to the first side 111. In other words, the lighting device 1 of the invention may be disposed on the surface of any product, and the first side 111 may face outward to emit light. In addition, the control chip 15 and the battery 12 are disposed on the second side 112 of the flexible circuit board 11, thereby saving space on the first side 111 of the flexible circuit board 11, and the arrangement of the light emitting diodes 131- 136 having a predetermined color is facilitated. Moreover, the arrangement of the light emitting diodes of predetermined color is not limited to the single row arrangement shown in FIGS. 1 to 3, but the arrangement of the light emitting diodes of predetermined color may be more flexibly arranged (e.g., in staggered arrangement) to make the light emitted from the lighting device 1 more variable.Further, each of the first side 111 and the second side 112 of the flexible circuit board 11 includes a plurality of circuit lines (not shown in the figure) laid flat on the flexible circuit board 11 to electrically connect the battery 12, the light emitting diodes 131_l36 of a predetermined color, the sensor 14, and the control chip 15 via the circuit lines. As compared with the prior art, the control chip 15 and the battery 12 are arranged on the rigid board, while the light emitting diodes of predetermined color are removed from the rigid board and arranged on a portable object. In this situation, it is necessary to install external wires to connect the light emitting diodes of predetermined color to the rigid circuit board. Therefore, the lighting device of the invention uses the flexible circuit board which can be constructed by controlling the capacitance, inductance and characteristic impedance with transmission line characteristic, so that the light emitting diodes of predetermined color, the control chip 15 and the battery 12 can be directly arranged on the surface of the flexible circuit board. In addition, the light emitting diodes of predetermined color can be freely installed at different positions on different portable objects because the flexible circuit board is not restricted by external wires. Therefore, the flexible printed circuit board of the lighting device of the present invention can simplify the construction of the overall circuit structure, reduce external wires, and thus reduce the overall size.Further, as illustrated in FIG. 1, the flexible circuit board 11 may further include two sets of connection components. One end of the connecting component 161 is connected to the positive pole of the battery 12 and the flexible circuit board 11; the other connecting component 162 is connected to the negative pole of the battery 12 and the flexible circuit board 11. For example, one end of the connection component 161 is connected or soldered to the first side 111 of the flexible circuit board 11 and bypasses the side wall of the battery 12 to be soldered to the positive pole of the battery 12. One end of the connecting component 162 is connected or soldered to the first side 111 of the flexible circuit board 11 without bypassing the side wall of the battery 12, and is directly soldered to the negative terminal of the battery 12. The connection component 162 can pass through the flexible printed circuit board 11. In practice, the battery may be a primary battery such as a carbon-zinc battery or an alkali battery, as well as a rechargeable secondary battery or a rechargeable battery via a USB connector.By using the flexible circuit board of the invention, external wires can be effectively reduced to reduce the overall size and to freely adjust the overall dimensions of the lighting device according to design requirements. In addition, the shape of the flexible circuit board of the present invention is not limited to the elongated shape described in the above-mentioned embodiment, and the flexible circuit board may have other shapes. A further embodiment is provided below. In this regard, see FIGS. 4 to 6 and FIG. 4 is a structural schematic diagram illustrating a lighting device 2 in another embodiment of the present invention. FIG. 5 is a cross-sectional diagram illustrating the lighting device 2 along the line A-A of FIG. 4 in another perspective view. FIG. 6 is a structural schematic diagram illustrating the lighting device 2 of FIG. 4 in another perspective view. As illustrated in FIGS. 4 to 6, the flexible circuit board 11 of the lighting device 2 in this specific embodiment may be circular and further includes a cavity 17. The sensor 14 is arranged in the cavity 17. Note that the width of the cavity 17 is smaller than the width of the sensor 14 (i.e., the diameter of the cylindrical sensor 14). Therefore, as shown in FIG. 5, one side of the sensor 14 may be positioned within the cavity 17 when the sensor 14 is disposed within the cavity 17.For example, when the width (diameter) of the sensor 14 is 1.96 mm, the width of the cavity 17 may be 1.85 mm. In this present embodiment, the light emitting diodes 131 of predetermined color, the control chip 15, and the sensor 14 may be installed on the front side (i.e., the first side) of the flexible circuit board 11, while the battery 12 may be mounted flat on the back side (i.e., the second side) of the flexible circuit board 11. Wherein, the negative pole (negative pole) and the positive pole of the sensor 14 can be electrically connected to the negative pole on the front side and the positive pole of the flexible printed circuit board 11 by soldering. The battery 12 can be connected to the negative and positive terminals of the flexible circuit board 11 via two connecting components as described in the above-mentioned specific embodiment. In addition, in practice, the maximum width of the flexible circuit board 11 may be equal to or larger than the diameter of the battery 12. For example, the flexible circuit board 11 may cover the entire battery 12 so that the battery 12 is not visible when viewed directly from the first side of the flexible circuit board 11, or the length and width of the flexible circuit board 11 may be equal to or larger than the diameter of the battery 12.In the specific embodiment, the light emitting diodes 131∼136 of predetermined color of the lighting device 1 may be light emitting diodes of different colors such as red tinted, green tinted, yellow tinted, orange tinted, cyan tinted, lime green tinted, violet tinted, pink tinted, ice blue tinted, or white tinted. In practice, however, the different color light emitting diodes all include the same LED control chip such as a blue light emitting diode chip, and may be coated with different colors or portions of phosphor on the surface of the blue light LED. These phosphors emit different colors of light after the blue light is absorbed by the blue light emitting diode chip. For example, the red LED is generated by coating the blue LED control chip with red phosphor to emit red light; the green LED is generated by coating the blue LED control chip with green phosphor to emit green light, etc. Thus, the light emitting diodes of predetermined color of the lighting device 1 can emit light of different colors by coating phosphor layers of different colors. Since all the light emitting diodes of predetermined color in the lighting device 1 use the same type of light emitting diode chip (such as a blue light emitting diode chip), each light emitting diode of predetermined color has the same or substantially the same driving voltage or operating voltage (Vf). For example, even when using the same blue light emitting diode chip, the driving voltage may have slight deviations due to the manufacturing process, such as a nominal value of 3 V with possible deviations in the range of ±1% to 5%, such as between 2.85 V and 3.15 V, 2.9 V and 3.1 V, or 2.97 V and 3.03 V.With the above technical method, the battery can continuously and stably output the same voltage even when a plurality of light emitting diodes having predetermined colors in the lighting device emit different colors, thereby prolonging the life of the lighting device. Moreover, the predetermined color light emitting diodes 131∼136 of the lighting device 1 in the embodiment may include at least one predetermined color light emitting diode which is a blue light emitting diode chip without coating the phosphor layer to emit blue light. For example, the predetermined color light emitting diodes 131∼136 may be the predetermined color first light emitting diode 131, the predetermined color second light emitting diode 132, the predetermined color third light emitting diode 133, the predetermined color fourth light emitting diode 134, the predetermined color fifth light emitting diode 135, and the predetermined color sixth light emitting diode 136. Among them, the first and third to sixth light emitting diodes of predetermined color are coated with phosphor layers on the control chips, while the second light emitting diode of predetermined color does not have a phosphor layer and thus emits blue light.In the prior art, light emitting diodes of different colors are used to indicate different changes in illumination color. When switching between light emitting diodes of different colors, however, the battery must switch to the corresponding output voltage in order to operate the light emitting diode. Frequent switching causes the battery voltage to change too slowly, shortening the life of the battery and the light emitting diodes of predetermined color. Therefore, the lighting device of the invention also has the advantage of longer life in comparison with the prior art.Further, the lighting device of the present invention, besides the advantages of small size and long lifetime, also offers the possibility of pre-storing multiple lighting modes in the control chip (or in the memory of the control chip). See FIG. 2 and FIGS. 7A to 7H. FIG. 7A is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7B is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7C is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7D is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7E is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7F is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7G is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. FIG. 7H is a schematic diagram illustrating the input signal of the light emitting diodes of predetermined color of FIG. 1. In FIGS. 7A to 7H, the horizontal axis represents time and the vertical axis represents the numbers of the light emitting diodes of predetermined colors 131, 132, 133, 134, 135, 136. Each diagram of FIGS. 7A to 7H illustrates an illumination cycle of a specific illumination mode.As illustrated in FIG. 7A, when the control chip 15 selects the lighting mode of FIG. 7A according to the external force value or the control signal detected by the sensor, the control chip 15 drives the predetermined color light emitting diodes 131∼136 to emit light once in succession and form a lighting cycle, and repeats the lighting cycle N times, where N is an integer greater than 0, to generate a sequential blinking effect. Further, the direction of blinking is not limited thereto. As shown in FIG. 7B, the control chip 15 drives the light emitting diodes 131- 136 having a predetermined color to emit light once in succession and then emit light in reverse order from the light emitting diode 136 having a predetermined color to the light emitting diode 131 having a predetermined color. From the perspective shown in Figure 2, this would appear as an illumination cycle moving from right to left and then from left to right, and then repeating this illumination cycle N times, where N is an integer greater than 0.In addition, in another embodiment, the light emitting diodes 131, 133, 132, 135, 134, and 136 having a predetermined color may emit light once or twice in the aforementioned sequential blinking or reciprocation blinking mode, and then blink once or more in the same sequence again. However, the duration or frequency of blinking may be different from the initial blinking duration or frequency to produce a visual effect with different blinking frequencies. For example, the duration of each subsequent blinking may be gradually increased or decreased, or the blinking frequency of the subsequent blinking signs may be gradually increased or decreased.In addition to the above lighting mode, the control chip may store other lighting modes in advance. As illustrated in FIG. 7C, the control chip 15 drives the light emitting diodes 131∼136 of predetermined color to sequentially emit light in the order 131, 133, 132, 135, 134, and 136 to form one lighting cycle, and repeats the lighting cycle N times, where N is an integer greater than 0. In practice, the number of light emissions of each light emitting diode having a predetermined color and the lighting order are not limited to these. For example, in another embodiment, each light emitting diode of predetermined color emits light M times in the order mentioned above. When M is 2, the light emitting diode 131 of predetermined color lights up twice, followed by the light emitting diode 133 of predetermined color lights up twice, where M is a natural number. In another embodiment, K light emitting diodes of a predetermined color emit light simultaneously. When K is 2, the light emitting diodes 131 and 133 of predetermined color emit light simultaneously, where K is a natural number less than or equal to the total number of the light emitting diodes of predetermined color.Moreover, the illumination mode can be constructed with different illumination times as needed. As illustrated in FIG. 7D, the difference between the lighting modes in FIGS. 7D and 7C is that after the end of flashing of the predetermined color light emitting diode 136 at time t 6, the predetermined color light emitting diodes 131, 133, 132, 135, 134, and 136 blink in the same order one or more times. However, the blinking time period or frequency from time t 6 to t 12 may be different from the previous blinking time period or frequency to produce a visual effect with different blinking frequencies. For example, the subsequent blinking time duration of one or more blinking signs may be gradually increased or decreased. The subsequent flashing frequency of one or more flashing signs may gradually accelerate or decelerate.In addition to the aforementioned alternate flashing mode and running light flashing mode, the present invention provides other types of lighting modes. As illustrated in FIG. 7E, the control chip first controls the light emitting diodes 131∼136 of predetermined color to blink simultaneously once, and then controls each light emitting diode of predetermined color to blink successively at least once to form one lighting cycle, and repeats the lighting cycle N times, where N is an integer greater than 0. In other embodiments, the control chip may control all light emitting diodes of predetermined color to blink L times at the same time, where L is an integer greater than 0.Further, the lighting modes of the light emitting diodes having a predetermined color may also include control of flashing brightness to achieve various visual effects. As illustrated in FIG. 7F, the control chip may control the light emitting diode 131 of predetermined color to illuminate at maximum brightness and then to be gradually dimmed, and then the light emitting diodes 132∼136 of predetermined color sequentially follow the same illumination pattern. In addition, as illustrated in FIG. 7G, the control chip may control the light emitting diode 131 having a predetermined color to emit light that gradually lightens to a certain brightness and maintains the brightness until turn-off. The light emitting diode 132∼136 of predetermined color may sequentially follow the same lighting mode. Moreover, the above-mentioned lighting mode (i.e., the brightness modes such as the gradually lightening and lightening mode or the gradually lightening and lightening mode) can be further constructed by arranging the light emitting diodes with predetermined color according to requirements. For example, the light emitting diodes 131∼136 emit light of a predetermined color, which gradually becomes lighter or darker, simultaneously. In addition, the illumination mode of a single light emitting diode having a predetermined color may also include the mode of gradually lightening and dimming. Specifically, a light emitting diode of a predetermined color can emit light that gradually lightens to a certain brightness and maintains that brightness and gradually becomes darker.In addition, the present invention further provides another brightness adjustment illumination mode. As illustrated in FIG. 7H, the light emitting diode 131 having a predetermined color has a light intensity S 1, the light emitting diode 132 having a predetermined color has a light intensity S 2, the light emitting diode 133 having a predetermined color has a light intensity S 3, and the light emitting diode 134 having a predetermined color has a light intensity S 4. When the control chip sequentially drives the light emitting diodes 131∼134 of predetermined color to emit light, the light intensity S4 is less than the light intensity S3 which is less than the light intensity S2 which is less than the light intensity S1 to produce a visual effect in which each subsequent light emitting diode of predetermined color has a light intensity lower than the previous one.In summary, users may store the above lighting mode, such as the sequential blinking mode, the synchronous blinking mode, the reciprocating blinking mode, the alternating blinking mode, the running light blinking mode, or the gradually lightening and lightening mode, or the gradually lightening and lightening mode, in the control chip as needed. In an embodiment, two lighting durations of any two adjacent light emitting diodes of predetermined color are adjacent to each other, or there is a non-lighting duration between the two lighting durations of the two adjacent light emitting diodes of predetermined color, or some lighting durations of two adjacent light emitting diodes of predetermined color partially overlap each other.The sensor 14 may be a vibration sensor, a spring sensor, or similar device that generates control signals or sensor signals by detecting external forces. The sensor 14 may also generate various control signals or sensor signals depending on the magnitude of the external force. In practical application, the chip may also be designed to prestore corresponding illumination modes for different ranges of external force values. For example, when the sensor detects a smaller force (such as a light touch with the hand), the control chip selects the first lighting mode (as illustrated in FIG. 7A ) to drive a plurality of light emitting diodes of predetermined color to emit light according to the first sensor signal detected by the sensor. When the sensor detects a stronger impact force or a higher frequency of vibrations, the control chip selects a different lighting mode (as shown in FIG. 7B ) according to the second sensor signal detected by the sensor to drive a plurality of light emitting diodes having a predetermined color to emit light. The amount, arrangement and color of the light emitting diodes having a predetermined color as well as the lighting modes of the lighting device of the present invention are not limited thereto. Users can construct various kinds of lighting devices and lighting modes as needed.In another embodiment, the lighting device of the present invention further includes a counter that may be disposed on the flexible circuit board or in the control chip. The counter may count the number of control signals (or sensor signals) generated by the sensor 14 and selectively generate a count signal. The control chip selects the lighting mode from among a plurality of lighting modes stored in the memory according to the control signals or count signals, and drives the light emitting diodes of a predetermined color to emit light according to the lighting mode. The counter has a fixed number of bits and is reset to zero after this number is exceeded. For example, when the counter has two bits, it does not generate a count signal when the counter value is 0 or 1, but generates a count signal when the counter value is 2 or 3. When the counter has three bits, it does not generate a count signal when the counter value is 0 to 2, but generates a first preset count signal when the counter value is 3 to 5, and a second preset count signal when the counter value is 6 to 7. The same logic applies to counters with different numbers of bits. When the control chip receives only the control signal without receiving a count signal, the control chip selects the first preset lighting mode to drive the light emitting diodes with a predetermined color. When the control chip receives the control signal together with the first preset count signal, the control chip selects the second preset lighting mode to drive the light emitting diodes with a predetermined color. When the control chip receives the control signal together with the second preset count signal, the control chip selects the third preset lighting mode to drive the light emitting diodes with a predetermined color.In another embodiment, the lighting device of the present invention further includes a signal receiver disposed on the flexible circuit board or within the control chip. Users may use their smart wearable device to connect wirelessly or wired to the signal receiver of this embodiment to transmit various lighting modes to the control chip that are stored in the memory of the control chip.In another embodiment, the lighting device of the present invention further includes an ON / OFF switch disposed on the flexible circuit board. When the ON / OFF switch is turned off, the battery does not supply current, and thus the control chip will not illuminate the light emitting diodes of a predetermined color regardless of whether the sensor 14 detects an external force.However, when the ON / OFF switch is turned on, the battery supplies power, the control chip drives the light emitting diodes of a predetermined color to emit light when the sensor 14 detects an external force.In another embodiment, the lighting device of the present invention further includes a selection switch disposed on the flexible circuit board. By each pressing of the selection switch, different lighting modes can be selected and switched. When the sensor 14 detects an external force, the control chip selects the first blinking mode to illuminate the light emitting diodes of a predetermined color.The present invention provides another lighting device including a sealed case, the circuit board, the battery, the sensor, the plurality of light emitting diodes having a predetermined color, and the control chip. Wherein the battery, the circuit board, the sensor, and the control chip are disposed inside the sealed case, while the battery, the sensor, and the control chip are disposed on the circuit board. A wire harness extends from the circuit board through the sealed housing and is connected to the plurality of light emitting diodes of predetermined color. The sensor detects an external force to generate a control signal. Each light emitting diode of predetermined color has the same light emitting diode chip, but different phosphor layers are coated on the surface of the light emitting diode chips. The phosphors absorb the light emitted from the light emitting diode chips and convert it into other colors of light. Each of the light emitting diodes having a predetermined color has the same or substantially the same driving voltage. In practice, the light emitting diode chip may use a blue light emitting diode. The control chip is electrically connected to the sensor and the plurality of light emitting diodes having a predetermined color, and stores the lighting mode. The control chip receives the control signal from the sensor and selects a lighting mode to drive the plurality of light emitting diodes of predetermined color to emit light according to the control signal. In practical applications, the lighting device of this specific embodiment may also store the lighting modes illustrated in FIGS. 7A to 7G in the control chip, so that users may store the lighting modes according to their requirements, and may also combine various lighting modes mentioned above.The present invention provides another lighting device including the sensor, a plurality of light emitting diodes having a predetermined color, and a control chip. The difference between this embodiment and the aforementioned embodiments is that in this embodiment, the control chip further stores a first illumination sequence and a second illumination sequence. The control chip receives control signals detected by the sensor and controls the light emitting diodes of a predetermined color to emit light at a fixed frequency according to the first illumination sequence, followed by light at a progressively changing frequency according to the second illumination sequence according to the control signals.In summary, the lighting device of the invention can significantly reduce the volume of the lighting device without using external wires by integrating all components on a double-sided flexible circuit board. In addition, the components can be further integrated into portable objects on the market due to the good flexibility, heat resistance and solderableness of the flexible circuit board. In this regard, see FIG. 8, FIG. 8 is a schematic diagram illustrating the portable object E having illumination function in an embodiment of the present invention. As illustrated in FIG. 8, the portable object E in this embodiment includes a portable object body 2 (such as the shoe illustrated in FIG. 8 ), a connecting member 31, and the above-mentioned lighting device 1. The lighting device 1 can be fixed to the portable object body 2 using the connection member 31 (such as adhesive tape, adhesive layer, or rivets) or various other methods. Further, the lighting device 1 may be covered with a cover (not illustrated in FIG. 8, for example, a light transmissive plate or an outer layer having a predetermined pattern).In practical applications, the sensor 14 detects the external force generated by the user when walking or running. Then, the control chip 15 receives the control signal from the sensor, selects a lighting mode, and controls the battery 12 and the light emitting diodes 131- 136 having a predetermined color to light up according to the lighting mode, which is then displayed by the cover representing the constructed lighting color and the flashing mode. It should be noted that the flexible circuit board, due to its advantages such as good flexibility and small volume, can be placed at different locations of the shoe (such as at the tongue, upper or side of the sole) by using the connecting element to achieve different decorative effects. Moreover, the flexible printed circuit board can be placed even on portable object bodies with softer and deformable surfaces, overcoming the limitation of conventional hard printed circuit boards which cannot be used in a versatile manner. It should be noted that other devices and functions of the lighting device in this embodiment are the same as the corresponding components in the aforementioned embodiment, so they are not repeated here. In another embodiment, the lighting device of the portable object with lighting function includes the above-mentioned signal receiver in order that the user can operate the lighting mode on the shoe surface via his smart portable device according to his or her requirements.In summary, the present invention provides a lighting device that can be placed directly on the surface of the flexible circuit board without having to pass external wires through the circuit lines in the flexible circuit board, thereby greatly reducing the overall size. In addition, the lighting device of the present invention can provide multiple lighting modes without increasing the complexity of the circuit or adding external wires to allow the chip to select the corresponding lighting mode according to the control signal detected by the sensor.With the above examples and explanations, the features and spirit of the invention are hopefully well described. More importantly, the present invention is not limited to the embodiment described herein. Those skilled in the art will readily appreciate that numerous modifications and changes may be made to the apparatus while retaining the teachings of the invention. Accordingly, the foregoing disclosure should be construed as limited only by the limits of the appended claims.

Claims

A lighting device, comprising: a flexible circuit board comprising a first connection component and a second connection component; a battery disposed on the flexible circuit board, wherein the first connection component extends along a sidewall of the battery and is connected to a first electrode of the battery, and the second connection component is connected to a second electrode of the battery without bypassing the sidewall of the battery; a plurality of predetermined color light emitting diodes disposed on the flexible circuit board and electrically coupled to the battery, the plurality of predetermined color light emitting diodes comprising a first predetermined color light emitting diode and a second predetermined color light emitting diode, the first predetermined color light emitting diode comprising a first light emitting diode chip and a first phosphor layer coated on the first light emitting diode chip, the second predetermined color light emitting diode comprising a second light emitting diode chip, each of the predetermined color light emitting diodes having the same or substantially the same driving voltage; a sensor disposed on the flexible circuit board and configured to detect an external force to generate a control signal; and a control chip disposed on the flexible circuit board and electrically coupled to the sensor, the plurality of light emitting diodes of a predetermined color, and the battery, wherein the control chip is configured to receive the control signal from the sensor and select a lighting mode according to the control signal to control the plurality of light emitting diodes of a predetermined color to emit light.The lighting device of claim 1, wherein a lighting color of the first light emitting diode having a predetermined color is different from a lighting color of the second light emitting diode having a predetermined color, wherein the lighting color of the first light emitting diode having a predetermined color is red tinted, green tinted, yellow tinted, orange tinted, cyan tinted, lime green tinted, violet tinted, pink tinted, ice blue tinted, or white tinted; wherein the first light emitting diode chip and the second light emitting diode chip are blue light emitting diode chips, and the second light emitting diode having a predetermined color is not coated with a phosphor layer.The lighting device according to claim 2, wherein the plurality of predetermined color light emitting diodes further comprises a third predetermined color light emitting diode, the third predetermined color light emitting diode comprises a third light emitting diode chip and a third phosphor layer coated on the third light emitting diode chip, wherein an illumination color of the third predetermined color light emitting diode is different from the light color of the second predetermined color light emitting diode.The lighting device of claim 2, wherein the lighting color of the first light emitting diode of predetermined color is tinted orange, tinted cyan, tinted lime green, tinted violet, tinted pink, tinted ice blue, or tinted white, the second light emitting diode of predetermined color further comprises a second phosphor layer coated on the second light emitting diode chip, and the lighting color of the second light emitting diode of predetermined color is tinted orange, tinted cyan green, tinted violet, tinted pink, tinted ice blue, tinted blue, or tinted white; wherein both the first light emitting diode chip and the second light emitting diode chip are blue light emitting diode chips.The lighting device of claim 2, wherein the plurality of light emitting diodes having a predetermined color are disposed on a first side of the flexible circuit board, and the battery is disposed on a second side of the flexible circuit board corresponding to the first side, wherein an end of the first connection component is soldered to the first side of the flexible circuit board, and an end of the second connection component is soldered to the first side of the flexible circuit board, and the second connection component passes through the flexible circuit board.The lighting device of claim 1, wherein the flexible circuit board has a cavity, and the sensor is disposed within the cavity, wherein the width of the cavity is less than the width of the sensor.The lighting device of claim 1, wherein a housing of the sensor is electrically connected to a first side of the flexible circuit board, and an electrode of the sensor is electrically connected to the first side or a second side of the flexible circuit board.The lighting device according to claim 1, wherein the maximum width of the flexible printed circuit board is equal to or greater than the diameter of the battery.The lighting device according to claim 1, wherein the lighting mode includes a sequential blinking mode, a synchronous blinking mode, a reciprocating blinking mode, an alternating blinking mode, a running light blinking mode, a gradually lightening and lightening mode, and a gradually lightening and lightening mode.A lighting device, comprising: a printed circuit board; a battery disposed on the printed circuit board; a plurality of light emitting diodes of predetermined color electrically coupled to the battery, wherein the plurality of light emitting diodes of predetermined color comprises a first light emitting diode of predetermined color and a second light emitting diode of predetermined color, the first light emitting diode of predetermined color comprises a first light emitting diode chip and a first phosphor layer coated on the first light emitting diode chip, the second light emitting diode of predetermined color comprises a second light emitting diode chip, wherein each of the light emitting diodes of predetermined color has the same or substantially the same driving voltage; a sensor disposed on the printed circuit board and configured to detect an external force to generate a control signal; and a control chip disposed on the circuit board and electrically coupled to the sensor, the plurality of light emitting diodes of predetermined color, and the battery, the control chip configured to receive the control signal from the sensor and select an illumination mode according to the control signal to control the plurality of light emitting diodes of predetermined color to emit light according to the control signal; wherein the illumination mode includes a first illumination sequence and a second illumination sequence following the first illumination sequence, the plurality of light emitting diodes of predetermined color emitting light at a first blinking frequency in the first illumination sequence, the plurality of light emitting diodes of predetermined color emitting light at a second frequency in the second illumination sequence, the second blinking frequency being different from the first blinking frequency.The lighting device according to claim 10, wherein each of the first light emitting diode chip and the second light emitting diode chip is a blue light emitting diode chip, and the second light emitting diode having a predetermined color is not coated with a phosphor layer.The lighting device of claim 11, wherein the plurality of predetermined color light emitting diodes further comprises a third predetermined color light emitting diode, the third predetermined color light emitting diode comprises a third light emitting diode chip and a third phosphor layer coated on the third light emitting diode chip, wherein an illumination color of the third predetermined color light emitting diode is different from an illumination color of the second predetermined color light emitting diode, and the third light emitting diode chip is a blue light emitting diode chip.The lighting device according to claim 10, wherein the plurality of light emitting diodes of predetermined color emit light sequentially at the first blinking frequency in the first lighting sequence; the plurality of light emitting diodes of predetermined color emit light sequentially at the second frequency in the second lighting sequence, wherein the second blinking frequency is a gradually changing frequency.The lighting device according to claim 13, wherein the lighting duration is the same for each light emitting diode of predetermined color in the first lighting sequence, and two lighting durations of two adjacent light emitting diodes of predetermined color are continuous, or a non-lighting period is between the two lighting durations of the two adjacent light emitting diodes of predetermined color.The lighting device according to claim 10, wherein the plurality of light emitting diodes of predetermined color emit light sequentially N times at the first blinking frequency in the first lighting sequence, and the plurality of light emitting diodes of predetermined color emit light simultaneously at the second blinking frequency in the second lighting sequence.A lighting device, comprising: a printed circuit board; a battery disposed on the printed circuit board; a plurality of light emitting diodes of predetermined color electrically coupled to the battery, wherein the plurality of light emitting diodes of predetermined color comprises a first light emitting diode of predetermined color and a second light emitting diode of predetermined color, the first light emitting diode of predetermined color comprises a first light emitting diode chip and a first phosphor layer coated on the first light emitting diode chip, the second light emitting diode of predetermined color comprises a second light emitting diode chip, wherein each of the light emitting diodes of predetermined color has the same or substantially the same driving voltage; a sensor disposed on the printed circuit board and configured to detect an external force to generate a control signal; a counter configured to count the number of control signals generated by the sensor to selectively generate a count signal; and a control chip disposed on the circuit board and electrically coupled to the sensor, the counter, the plurality of light emitting diodes of predetermined color, and the battery; wherein the control chip includes a storage device in which a plurality of lighting modes are stored, and the control chip selects one lighting mode from the plurality of lighting modes to control the plurality of light emitting diodes of predetermined color to emit light according to the control signal and the count signal.The lighting device according to claim 16, wherein each of the first light emitting diode chip and the second light emitting diode chip is a blue light emitting diode chip, and the second light emitting diode having a predetermined color is not coated with a phosphor layer.The lighting device of claim 17, wherein the plurality of predetermined color light emitting diodes further comprises a third predetermined color light emitting diode, the third predetermined color light emitting diode comprises a third light emitting diode chip and a third phosphor layer coated on the third light emitting diode chip, wherein a light color of the third predetermined color light emitting diode is different from a light color of the second predetermined color light emitting diode, and the third light emitting diode chip is a blue light emitting diode chip.The lighting device according to claim 16, wherein the lighting modes include a sequential blinking mode, a synchronous blinking mode, a reciprocating blinking mode, an alternating blinking mode, a running light blinking mode, a gradually lightening and lightening mode, and a gradually lightening and lightening mode.A lighting device comprising: a circuit board; a battery disposed on the circuit board; a plurality of predetermined color light emitting diodes electrically coupled to the battery, wherein the plurality of predetermined color light emitting diodes comprises a first predetermined color light emitting diode, a second predetermined color light emitting diode, and a third predetermined color light emitting diode, the first predetermined color light emitting diode comprises a first light emitting diode chip and a first phosphor layer coated on the first light emitting diode chip, the second predetermined color light emitting diode comprises a second light emitting diode chip, the third predetermined color light emitting diode comprises a third light emitting diode chip, and a third phosphor layer coated on the third light emitting diode chip; wherein each of the predetermined color light emitting diodes has the same or substantially the same driving voltage; a sensor disposed on the circuit board and configured to detect an external force to generate a control signal; and a control chip disposed on the circuit board and electrically coupled to the sensor, the plurality of predetermined color light emitting diodes, and the battery, the control chip configured to receive the control signal from the sensor and select a lighting mode according to the control signal to control the plurality of predetermined color light emitting diodes to emit light; wherein the illumination mode comprises a first illumination sequence and a second illumination sequence following the first illumination sequence, the plurality of light emitting diodes of predetermined color sequentially emit light at least once in the first illumination sequence, and the plurality of light emitting diodes of predetermined color simultaneously emit light at least once in the second illumination sequence.The lighting device according to claim 20, wherein the second light emitting diode having a predetermined color is not coated with a phosphor layer; the first light emitting diode chip, the second light emitting diode chip, and the first light emitting diode chip are blue light emitting diode chips, wherein an illumination color of the first light emitting diode having a predetermined color and an illumination color of the third light emitting diode having a predetermined color are different from an illumination color of the second light emitting diode having a predetermined color.A portable object with lighting function, comprising: a portable object body; and a lighting device disposed on the portable object body, wherein the lighting device comprises: a flexible printed circuit board comprising a first connection component and a second connection component; a battery disposed on the flexible printed circuit board, wherein the first connection component extends along a side wall of the battery and is connected to a first electrode of the battery, and the second connection component is connected to a second electrode of the battery without bypassing the side wall of the battery; a plurality of predetermined color light emitting diodes disposed on the flexible circuit board and electrically coupled to the battery, the plurality of predetermined color light emitting diodes comprising a first predetermined color light emitting diode and a second predetermined color light emitting diode, the first predetermined color light emitting diode comprising a first light emitting diode chip and a first phosphor layer coated on the first light emitting diode chip, the second predetermined color light emitting diode comprising a second light emitting diode chip, each of the predetermined color light emitting diodes having the same or substantially the same driving voltage; a sensor disposed on the flexible circuit board and configured to detect an external force to generate a control signal; and a control chip disposed on the flexible circuit board and electrically coupled to the sensor, the plurality of light emitting diodes of a predetermined color, and the battery, wherein the control chip is configured to receive the control signal from the sensor and select a lighting mode according to the control signal to control the plurality of light emitting diodes of a predetermined color to emit light.

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