Regarding the problem of images becoming burnt onto the screen

5.8 Regarding the problem of images becoming burnt onto the screen

If the same image is shown on the screen for a prolonged period of time (i.e. a still picture or a closed-captioning etc.), then this image may become permanently burnt onto the screen. This problem can be managed by changing image composition, source rotation or other methods. Additionally, this unit also offers the following methods of reducing the likelihood of images from becoming burnt onto the screen.

1Movement of the picture border

Every time you turn the unit on, the built-in microcomputer moves the picture border randomly. NOTE: This only applies when there is a side mask, for example with the 4:3 screen size.

2Automatic brightness adjustment (detection of still pictures)

This function detects pictures that have little or no movement and automatically adjusts the brightness. (This function operates only in normal operating mode and menu mode.)

3Side mask adjustment

Side mask adjustment may be used to adjust the brightness of the area around the periphery of the display in which no picture is displayed when displaying images at 4:3 size or other reduced sizes, thus helping to prevent the burning of side mask border lines into the screen caused by differences in the brightness of displayed images and the side mask area. (Please refer to “5.4.3.4 Adjusting the side mask”.)

Adjustment is also possible using RS-232C commands (please refer to “5.5.4 List of RS-232C commands”).

4Full mask (Full Screen Color Wash) setting

This function turns the entire screen a single color - white, red, green or blue - using a PDP internal signal (please refer to “5.4.3.10 Setting FULL MASK”).

Setting is also possible using RS-232C commands (please refer to “5.5.4 List of RS-232C commands”).

In the case that an image has been burnt onto the screen, FULL MASK can be used as an emergency measure to reduce the symptoms (although it will be impossible to completely remove the burnt-on image).

In addition, proper ‘aging’ of the screen through use of FULL MASK in advance will make the screen less prone to the problem of images becoming burnt onto it.

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