Display Device Lens Array Orientation for Moire Elimination

The patent applies asymmetry by configuring the lens array with a specific pitch that is not equal to the black matrix period, and by setting the lens array orientation angle to a specific value (e.g., 30 degrees) relative to the pixel row direction. This asymmetric configuration breaks the periodic alignment that causes Moire interference, thereby eliminating Moire stripes while maintaining 3D display functionality.

The patent changes critical parameters of the lens array including its pitch (spacing between lenses) and orientation angle relative to the pixel rows. By adjusting these parameters to specific values that do not match the black matrix periodicity, the optical interference is avoided. For example, setting the lens pitch to a value different from the black matrix spacer bar period, and orienting the lens array at a specific angle (such as 30 degrees) prevents the formation of Moire patterns.

The patent segments each pixel into two distinct pixel portions: a first pixel portion with a first switch and ITO for 2D mode, and a second pixel portion with a second switch and ITO for 3D mode. This segmentation allows independent control of light transmission for different display modes, enabling flexible switching between 2D and 3D operation while maintaining a relatively simple overall structure.

The patent implements multi-functionality by designing the display device with dual pixel portions that can operate in different modes. The first pixel portion and second pixel portion work together to provide both 2D and 3D display capabilities. By using the same basic structure (pixel portion with switch and ITO) for both modes, the patent achieves versatility without proportionally increasing complexity.