Apparatus and method for display screen flicker detection and correction
AssigneeIntermec IP Corp.
InventorsJohanas L. Starr, Mark C. Thompson, Brian J. Clair, Harold W. Tiedemann
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Abstract
An improved display screen flicker detection and correction system. The system includes a flicker detection component. A test pattern is placed on a display screen to be tested and corrected. The flicker detection component is placed on or near the display screen. The flicker detection component senses the change in light level that results from the flickering screen. The display system is then adjusted to minimize flicker.
Claims10
A flicker detection and correction system for detecting and correcting flicker in display screens, comprising:
- a flicker detection component, comprising;
- a light sensor outputting a direct current (DC) signal in response to sensed light;
- a DC to analog current (AC) converter, coupled with said light sensor, to convert the DC signal generated by the light sensor to an AC signal;
- a signal output, coupled with said DC to AC converter, to communicate an AC signal;
- and
- a screen adapter, coupled with a sensing end of said flicker detection component, to adapt the flicker detection component to physical attributes of a particular device having a screen to be tested.
A flicker detection and correction system for detecting and correcting flicker in display screens, comprising:
- a flicker detection component, comprising;
- a detector board;
- a light sensor, to output a direct current (DC) signal in response to sensed light, coupled with said detector board;
- a DC to alternating current (AC) converter, located on said detector board, to convert a DC signal generated by the light sensor to an AC signal;
- and
- an output to communicate the AC signal;
- a screen adapter, coupled with a sensing end of said flicker detection component, to adapt the flicker detection component to physical attributes of a device having the screen being tested;
- a control component, coupled with said output to receive an AC signal, said control component controlling a flicker detection and correction process;
- and
- a device to be tested, comprising;
- a display screen;
- a common voltage (VCOM) adjustment control;
- and
- a connector, coupling said VCOM adjustment control with said control component.
Dependencies are inferred from the claim text.