CN205911204U - Luminous keyboard based on flexible line way board - Google Patents

Abstract

The utility model discloses a luminous keyboard based on a flexible circuit board, which comprises a keyboard frame, a flexible circuit board, a reflective plate and a keyboard substrate in sequence from top to bottom; the keyboard frame has a plurality of keycaps; the flexible circuit board includes A polyester film substrate and copper wires arranged on the polyester film substrate; a plurality of first LEDs and a plurality of second LEDs are welded on the lower surface of the flexible circuit board; the keyboard also includes a controller, and the plurality of A keycap includes a first LED control keycap and a second LED control keycap; the first LED control keycap is used to control the opening and closing of the plurality of first LEDs, and the second LED control keycap is used for controlling for controlling the on/off of the plurality of second LEDs. The keyboard of the utility model realizes luminescence, saves energy, and has a high degree of intelligence.

Description

A luminous keyboard based on a flexible circuit board

technical field

The utility model relates to the field of keyboards, in particular to a luminescent keyboard based on a flexible circuit board.

Background technique

As an input device for devices such as notebooks and desktops, the keyboard has a wide range of applications, and the existing backlight keyboard has a separate backlight module, so the cost is high and the structure is complicated. In addition, the intelligence of the existing keyboard backlight module is not high.

Utility model content

Purpose of the utility model: The utility model aims to overcome the defects of the prior art and provide a light-emitting keyboard based on a flexible circuit board.

Technical solution: A light-emitting keyboard based on a flexible circuit board, which includes a keyboard frame, a flexible circuit board, a reflective plate, and a keyboard substrate in sequence from top to bottom; there are multiple keycaps in the keyboard frame; the lower surface of the flexible circuit board A plurality of first LEDs and a plurality of second LEDs are welded; the keyboard also includes a controller, and the plurality of keycaps include a first LED control keycap and a second LED control keycap; the first LED control The keycap is used to control the opening and closing of the plurality of first LEDs, and the second LED control keycap is used to control the opening and closing of the plurality of second LEDs.

Further, the flexible circuit board includes a polyester film substrate and copper wires disposed on the polyester film substrate.

Further, the plurality of first LEDs and the plurality of second LEDs are arranged at intervals.

Further, scissor feet and silicone keys are arranged under the keycap, and the silicone keys are pasted on the flexible circuit board.

Further, the keyboard also includes a Bluetooth module.

Further, the keyboard also includes a light intensity detection module; the plurality of keycaps also includes an intelligent/manual switch button.

Further, the flexible circuit board is a transparent flexible circuit board.

Beneficial effects: in the keyboard of the utility model, the LED is directly welded on the back of the flexible circuit board to realize the lighting of the keyboard, and the copper wire on the flexible circuit board is more conducive to welding the LED. And whether the LED is turned on or not can be controlled manually, or intelligently controlled by the measured value of the light intensity detection module. And you can choose to let only part of the LED light up, so as to achieve the purpose of energy saving.

Description of drawings

Fig. 1 is the keyboard structure of the present utility model, does not show structures such as keycap;

Figure 2 shows the structure among the keyboard substrate, reflector, flexible circuit board and keycap; the LEDs on the flexible circuit board are not shown.

detailed description

Reference signs: 1 keyboard substrate; 2 reflector; 3 flexible circuit board; 4.1 first LED; 4.2 second LED;

A light-emitting keyboard based on a flexible circuit board, which includes a keyboard frame, a flexible circuit board 3, a reflective plate 2, and a keyboard substrate 1 in sequence from top to bottom; the keyboard frame has a plurality of keycaps 7; the flexible circuit board 3 A plurality of first LED4.1 and a plurality of second LED4.2 are welded on the lower surface; the keyboard also includes a controller, and the plurality of keycaps include a first LED control keycap and a second LED control keycap; The first LED control keycap is used to control the opening and closing of the plurality of first LEDs, and the second LED control keycap is used to control the opening and closing of the plurality of second LEDs. The flexible circuit board includes a polyester film substrate and copper wires arranged on the polyester film substrate. The plurality of first LEDs and the plurality of second LEDs are arranged at intervals. Scissor feet 5 and silicone buttons 6 are arranged under the keycap, and the silicone buttons 6 are pasted on the flexible circuit board 3 . The keyboard also includes a bluetooth module so as to realize wireless connection with the host computer. The keyboard also includes a light intensity detection module; the plurality of keycaps also includes an intelligent/manual switch button. When the smart mode is selected, the controller controls all the first LEDs and all the second LEDs to turn on according to the measured value of the light intensity detection module when the measured value is less than the set threshold; when the manual mode is selected, the first The LED control keycap controls the opening and closing of the first LED, and the second LED control keycap controls the opening and closing of the second LED. When a large light intensity is required, all the first LEDs and all the second LEDs can be turned on, but in order to save power, only the first LEDs or the second LEDs can be turned on. The flexible circuit board is a transparent flexible circuit board, and the light emitted by the LED is reflected by the reflective plate located below and shines upwards, so that the keyboard emits light.

Moreover, the flexible circuit board of the present invention includes a polyester film substrate and copper-plated wires on the substrate. The width of the copper-plated wires is 0.05 mm to 2 mm, and the copper-plated wires are covered with water glue. At present, the routing is limited by the keyboard mechanism, and a single silver wire cannot go through the circuit, and a jumper connection is required; however, the utility model has a thinner routing width, which can directly connect to the circuit, and does not need a jumper to connect. At present, the production process of printing silver wire is as follows: printing silver wire on polyester film—printing carbon—printing UV1—printing UV2—printing jumper wire—printing water glue. The production process of the copper-plated wire of the utility model is as follows: polyester film copper plating-corrosion process-printing carbon-printing water glue. From the above comparison, it can be known that the utility model saves the printing UV1, UV2 and wire jumping processes, simplifies the design and production process, reduces defects in production, and saves costs.

Although the utility model has been illustrated and described with respect to the preferred embodiment, those skilled in the art should understand that as long as the utility model does not exceed the scope defined by the claims of the utility model, various changes and modifications can be made to the utility model.

Claims (5)

1. A luminescent keyboard based on a flexible circuit board, characterized in that it includes a keyboard frame, a flexible circuit board, a reflector and a keyboard substrate in turn from top to bottom; there are multiple keycaps in the keyboard frame; the flexible circuit The board includes a polyester film substrate and copper wires arranged on the polyester film substrate; the lower surface of the flexible circuit board is welded with a plurality of first LEDs and a plurality of second LEDs; the keyboard also includes a controller, the The plurality of keycaps include a first LED control keycap and a second LED control keycap; the first LED control keycap is used to control the opening and closing of the plurality of first LEDs, and the second LED control keycap The cap is used to control the opening and closing of the plurality of second LEDs. 2 . The luminous keyboard based on a flexible circuit board according to claim 1 , wherein the plurality of first LEDs and the plurality of second LEDs are arranged at intervals. 3 . The luminous keyboard based on a flexible circuit board according to claim 1 , wherein scissor feet and silicone keys are arranged under the key caps, and the silicone keys are pasted on the flexible circuit board. 4 . 4. The luminous keyboard based on a flexible circuit board according to claim 1, wherein the keyboard further comprises a Bluetooth module. 5 . The luminous keyboard based on a flexible circuit board according to claim 1 , wherein the keyboard further includes a light intensity detection module; and the plurality of keycaps further includes an intelligent/manual switch button. 6 .