Luminous keyboard

Abstract

A luminescent keyboard include keys, A support plate have openings in that support plate, A switch circuit board arranged on the support board, The backlight module comprises an upper reflective sheet, a lower reflective sheet and a light guide plate positioned between the upper reflective sheet and the lower reflective sheet, and the straight-down light emitting element extends into the light guide plate opening through the lower reflective sheet opening of the lower reflective sheet. A light beam output from a direct-down light emit element is transmitted to a light guide plate, and that light beam conduct in the light guide plate travels in the direction of the openings in the support plate through a plurality of microstructures in the light guide plate, and is project to keys after passing through the openings in the support plate and the switch circuit board.

Description

technical field [0001] The invention relates to the field of keyboards, in particular to a keyboard with a light-emitting function. Background technique [0002] Common computer peripheral input devices include a mouse, a keyboard, and a trackball. The keyboard can directly input text and symbols to the computer, so it is highly valued by users and input device manufacturers. [0003] see figure 1 , which is a schematic diagram of an appearance structure of an existing keyboard. A plurality of keys 10 are exposed on the surface of the existing keyboard 1, and the plurality of keys 10 are classified into general keys 101, number keys 102, and function keys 103, etc., and the plurality of keys are generated by pressing the user's fingers. Corresponding key signals are given to the computer, so that the computer performs the pressed key function. For example, the general key 101 is used to input characters and other symbols, the number key 102 is used to input numbers, and th...

AI Technical Summary

Problems solved by technology

However, the light beams generated by the direct-type light-emitting diodes are directly projected upwards onto the corresponding key caps, so the light projection effect of the direct-type light-emitting keyboard has the defect of being too concentrated, and symbols such as letters or numbers are scattered on the periphery of the key caps ( see figure 1 As far as the keys of the shown key cap 104) are concerned, this will make the luminous degree of each symbol 1041-1044 on the key cap uneven

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