DISPLAY AND GLASSES
A security display system including security glasses and a security display is provided. The security display includes a noise image generator, a synchronous packet generator, a display unit and an image asymmetry generator. The noise image generator generates a noise image signal according to a normal image signal. The synchronous packet generator outputs a synchronous packet to the security glasses. The display unit displays a normal image according to the normal image signal in a glasses-open period and a noise image according to the noise image signal in a glasses-shut period. The image asymmetry generator corresponds to a first brightness integral when displaying the normal image in the glasses-open period, and to a second brightness integral when displaying the noise image the glasses-shut period. The second brightness integral is greater than the first brightness integral.
1 . A display, comprising:
a noise image generator, for generating a noise image signal according to a normal image signal;
a synchronous packet generator, for outputting a synchronous packet to the glasses according to the normal image signal and the noise image signal;
a display unit, for displaying a normal image according to the normal image signal in a glasses-open period, and displaying a noise image according to the noise image signal in a glasses-shut period; and
an image asymmetry generator, for controlling the display unit to correspond to a first brightness integral when displaying the normal image in the glasses-open period, and to a second brightness integral when displaying the noise image in the glasses-shut period, the second brightness integral being greater than the first brightness integral.
2 . The display according to claim 1 , wherein the second brightness integral is at least greater than four times the first brightness integral.
3 . The display according to claim 1 , wherein the noise image comprises a plurality of polygonal color blocks respectively having a length between 3 to 30 pixels.
4 . The display according to claim 1 , wherein the display unit comprises a panel and a backlight module, the backlight module provides a backlight to the panel, the image asymmetry generator controls the backlight module or the panel such that the second brightness integral is greater than the first brightness integral.
5 . The display according to claim 4 , wherein the glasses-open period comprises a normal lighting interval and the glasses-shut period comprises a noise lighting interval, the image asymmetry generator controls the backlight module to maintain a backlight brightness in the normal lighting interval and in the noise lighting interval, and the noise lighting interval is greater than the normal lighting interval.
6 . The display according to claim 4 , wherein the glasses-open period comprises a plurality of normal lighting intervals and the glasses-shut period comprises a noise lighting interval, the image asymmetry generator controls the backlight module to maintain a backlight brightness in the normal lighting intervals and in the noise lighting interval, and the noise lighting interval is greater than a sum of the normal lighting intervals.
7 . The display according to claim 4 , wherein the glasses-open period comprises a normal lighting interval and the glasses-shut period comprises a plurality of noise lighting intervals, the image asymmetry generator controls the backlight module to maintain a backlight brightness in the normal lighting interval and in the noise lighting intervals, and a sum of the noise lighting intervals is greater than the normal lighting interval.
8 . The display according to claim 4 , wherein the glasses-open period comprises a normal lighting interval and the glasses-shut period comprises a noise lighting interval, the image asymmetry generator controls the backlight module to maintain a first backlight brightness in the normal lighting interval and a second backlight brightness in the noise lighting interval, the second backlight brightness is greater than the first backlight brightness, and the noise lighting interval equals the normal lighting interval.
9 . The display according to claim 4 , wherein the glasses-open period comprises a plurality of normal lighting intervals and the glasses-shut period comprises a noise lighting interval, the image asymmetry generator controls the backlight module to maintain a first backlight brightness in the normal lighting intervals and a second backlight brightness in the noise lighting interval, the second backlight brightness is greater than the first backlight brightness, and the noise lighting interval equals the normal lighting interval.
10 . The display according to claim 4 , wherein the glasses-open period comprises a normal lighting interval and the glasses-shut period comprises a plurality of noise lighting intervals, the image asymmetry generator controls the backlight module to maintain a first backlight brightness in the normal lighting interval and a second backlight brightness in the noise lighting intervals, the second backlight brightness is smaller than the first backlight brightness, and the noise lighting interval equals the normal lighting interval.
11 . The display according to claim 4 , wherein the glasses-open period comprises a normal lighting interval and the glasses-shut period comprises a first noise lighting interval and a second noise lighting interval, the image asymmetry generator controls the backlight module to maintain a first backlight brightness in the normal lighting interval, a second backlight brightness in the first noise lighting interval, and a third backlight brightness in the second noise lighting interval, and the third backlight brightness is greater than the first backlight brightness and the first backlight brightness is greater than the second backlight brightness.
12 . The display according to claim 4 , wherein the glasses-open period comprises a plurality of normal lighting intervals and the glasses-shut period comprises a first noise lighting interval and a second noise lighting interval, the image asymmetry generator controls the backlight module to maintain a first backlight brightness in the normal lighting intervals, a second backlight brightness in the first noise lighting interval, and the first backlight brightness in the second noise lighting interval, and the second backlight brightness is greater than the first backlight brightness
13 . The display according to claim 4 , wherein the glasses-open period comprises a normal lighting interval and the glasses-shut period comprises a plurality of first noise lighting intervals and a plurality of second noise lighting intervals, the image asymmetry generator controls the backlight module to maintain a first backlight brightness in the normal lighting interval, a second backlight brightness in the first noise lighting intervals, and a third backlight brightness in the second noise lighting intervals, and the third backlight brightness is greater than the first backlight brightness and the first backlight brightness is greater than the second backlight brightness.
14 . The display according to claim 4 , wherein the noise image comprises a plurality of sub noise images, the glasses-open period comprises a normal lighting interval and the glasses-shut period comprises a plurality of noise lighting intervals, the asymmetry generator controls the backlight module to maintain a first backlight brightness in the normal lighting interval and a second backlight brightness in the noise lighting intervals, the second backlight brightness is greater than the first backlight brightness, and the noise lighting intervals respectively correspond to the sub noise images.
15 . The security display according to claim 4 , wherein the noise image comprises a plurality of sub noise images, the glasses-open period comprises a normal lighting interval and the glasses-shut period comprises a plurality of noise lighting intervals, the asymmetry generator controls the backlight module to maintain a backlight brightness in the normal lighting interval and the backlight brightness in the noise lighting intervals, and the noise lighting intervals respectively correspond to the sub noise images.
16 . The display according to claim 4 , wherein the noise image comprises a plurality of sub noise images, the glasses-open period comprises a normal lighting interval and the glasses-shut period comprises a plurality of first noise lighting intervals and a plurality of second noise lighting intervals, the asymmetry generator controls the backlight module to maintain a first backlight brightness in the normal lighting interval, a second backlight brightness in the first noise lighting intervals and a third backlight brightness in the second noise lighting intervals, and the sub noise images respectively correspond to one of the first noise lighting intervals and one of the second noise lighting intervals.
17 . The display according to claim 4 , wherein the backlight module comprises a first backlight region and a second backlight region, the normal image comprises a correct image region and a image region, the correct image region and the image region respectively correspond to the first backlight region and the second backlight region, the image asymmetry generator controls the first backlight region and the second backlight region to maintain a first backlight brightness when displaying the normal image, and controls the first backlight region to maintain the first backlight brightness and the second backlight region to maintain a second backlight brightness when displaying the noise image, and the second backlight brightness is greater than the first backlight brightness.
18 . The display according to claim 4 , wherein the panel comprises:
a plurality of pixels, each comprising:
a first-color sub-pixel;
a second-color sub-pixel;
a third-color sub-pixel; and
a fourth-color sub-pixel, being neighboring to the first-color sub-pixel, the second-color sub-pixel and the third-color sub-pixel, for providing a greater penetration power to the noise image displayed on the panel than to the normal image displayed by the panel.
19 . The display according to claim 4 , wherein the image asymmetry generator comprises an image filter, and the normal image signal is outputted via the image filter to the panel to display the normal image.
20 . The display according to claim 4 , wherein the image filter is a grid filter, a vertical filter or a horizontal filter.
21 . The display according to claim 4 , wherein the image asymmetry generator adjusts the noise image signal according to a reference value and outputs the adjusted noise image signal to the panel to display the noise image.
22 . A pair of glasses, comprising:
a receiver, for receiving the synchronous packet;
a lens set;
a driving circuit, for driving the lens set; and
a microcontroller, for controlling the driving circuit according to the synchronous packet.
23 . The glasses according to claim 22 , wherein the synchronous packet comprises a synchronous code, an address code, a mode code and a command code, and the glasses further comprise:
a mode display device;
an address display device; and
a decoder, for determining whether the address code is same as a predetermined address, generating a synchronous signal to the microcontroller according to the synchronous code, generating a mode signal to the mode display controller according to the mode code, generating a command signal to the microcontroller according to the command code, and outputting an address signal to the microcontroller according to the address code to display the address code by the address display device.