Reflective display device with light compensation module

Abstract

The invention discloses a reflective display device with a light compensation module. The reflective display device comprises a light guide plate, at least one light source module, a photo sensor unit, a processing unit and a storage unit, wherein the light source module at least comprises a red light source, a green light source and a blue light source; the storage unit stores a preset intensity proportion parameters of three basic color light, namely red light, green light and blue light, of standard white light; the photo sensor unit detects the intensity of the three basic color light, namely the red light, the green light and the blue light, and converts the intensity into corresponding electric signals which are then output to the processing unit; and the processing unit determines the intensity proportions of the three basic color light according to the electric signals, compares the intensity proportions with the preset intensity proportion parameter, and starts the luminous light source of the corresponding color in the light source module when the intensity of any light in the three basic color light in ambient light is lower than the preset intensity proportion parameter. The light, emitted by the light source module, of the corresponding color, compensates the intensity proportion of the three basic color light, namely the red light, the green light and the blue light, in the ambient light, so the color display effect of the reflective display device is improved.

Description

technical field [0001] The invention relates to a reflective display device, in particular to a reflective display device with a light compensation module. Background technique [0002] Reflective display devices such as electrophoretic electronic paper, cholesteric liquid crystal electronic paper, electrowetting electronic paper, and interferometric display screens based on micro-electromechanical systems (MEMS) have the advantages of no backlighting, bistable state, and low energy consumption. Therefore, Reflective display devices are widely used in portable electronic devices such as monitors, laptop computers, PDAs, and e-book readers. Both cholesteric liquid crystal electronic paper and interferometric display screens can display in color, while black and white electrophoretic electronic paper can also use color particle (RGB / YMC) color mixing principle to achieve color display, or use black and white electronic paper to add Color filter structure for full-color displa...

AI Technical Summary

Problems solved by technology

When the brightness of the ambient light is insufficient or the color deviation is large, it will directly affect the color display quality of the reflective display device. Yellowish, or when the lighting is a neon lamp that emits red light, the display effect of the screen is reddish

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