Luminous keyboard and its light guide plate module

Abstract

The invention provides a light emitting keyboard and a light guide plate module thereof. The light emitting keyboard comprises a light emitting element, a thin film circuit board, a plurality of press keys and the light guide plate module, wherein the press keys correspond to a plurality of thin film switches on the thin film circuit board and are communicated with the thin film switches, the light emitting element is used for providing light rays for the light emitting keyboard, the light guide plate module comprises a first reflective layer, a second reflective layer and a light guide layer, the light guide layer is positioned between the first reflective layer and the second reflective layer, and is provided with a plurality of light emitting areas and a gap area, the light emitting areas correspond to the press keys, the gap area is positioned outside the light emitting area, each light emitting area is provided with light guide points, and the gap area is provided with a light diffusion structure.

Description

technical field [0001] The invention relates to a keyboard, in particular to a keyboard with a light emitting function and a light guide plate module thereof. Background technique [0002] In recent years, due to the rapid development of the information industry, many users may use portable information devices in different environments, such as notebook computers, mobile phones or personal digital assistants. In a low-light environment, users may not be able to clearly see the numbers and characters marked on the keyboard keys, thus causing difficulties in operation, and in severe cases, may even cause vision loss due to barely recognizing the key marks. Therefore, the introduction of the luminous keyboard 1 can improve the inconvenience of the user using the keyboard in places with insufficient light. What's more, by means of different lighting configurations, the information device using the lighting keyboard 1 can look more beautiful, thereby increasing its sales. [00...

AI Technical Summary

Problems solved by technology

[0007] However, the disadvantage of the existing luminous keyboard is that, due to the light incident on the light guide plate 12, the incident angle of part of the light beam L12 is too small, that is, the traveling direction of the light beam L12 is too flat, so the light beam L12 is not easy to hit the light guide point 121. , the light beam L12 cannot be derived from the light guide plate 12 to be used by multiple keys 15, resulting in poor light use efficiency; therefore, the existing luminous keyboard still has room for improvement

Images