초록 ▼

A pager having a notifier to notify the receipt of a call signal for itself, an LCD to display certain display messages, a light sensor to detect the light quantity of the light irradiated to the surface of the LCD, a control section to generate the contrast adjustment signal corresponding to the re

A pager having a notifier to notify the receipt of a call signal for itself, an LCD to display certain display messages, a light sensor to detect the light quantity of the light irradiated to the surface of the LCD, a control section to generate the contrast adjustment signal corresponding to the received light quantity of the LCD detected by the light sensor, a reference voltage generation section to generate the reference voltage according to the contrast adjustment signal generated by the control section, and an LCD driver to adjust the light intensity of the display message on the LCD according to the reference voltage supplied from the reference voltage generation section.

대표청구항 ▼

[ What is claimed is:] [1.] A pager having a notifier means to notify the receipt of a call signal, a display means for displaying a received message received together with said call signal, and an illumination means for illuminating said display means, the pager comprising:a first light detection m

[ What is claimed is:] [1.] A pager having a notifier means to notify the receipt of a call signal, a display means for displaying a received message received together with said call signal, and an illumination means for illuminating said display means, the pager comprising:a first light detection means for detecting an ambient light quantity at the surface of said display means;a second light detection means for detecting an illuminating light quantity at said display means when said illumination means illuminates said display means;a control means for generating a contrast adjustment signal corresponding to the detected ambient light quantity at said display means when said illuminating means is off and corresponding to both the detected ambient and illuminating light quantities at said display means when said illuminating means illuminates said display means;a reference voltage generation means for generating a reference voltage corresponding to the contrast adjustment signal generated by said control means; anda contrast adjustment means for adjusting the light intensity of the display message on said display means according to the reference voltage supplied from said reference voltage generation means.