Systems and methods for a dynamic braille display
First Claim
Patent Images
1. A tactile braille display comprising:
- a display substrate with a planar top surface;
a plurality of movable pins configured to be positioned within the display substrate, and the plurality of movable pins being configured to move between a first position and a second position, each of the plurality of movable pins including a first end, a shaft, and a second end,the first end being configured to provide a raised dot of a braille character when the movable pin is in the second position, wherein in the second position the first end is positioned above the planar top surface,the shaft being configured to secure the movable pin within the display substrate and move in a helical path within the display substrate,the second end including a cam, wherein the plurality of movable pins includes a first movable pin;
a write head configured to interface with the plurality of movable pins, the write head including a first actuator and a second actuator, the first actuator being configured to be in an extended positioned to engage with the cam of the first movable pin when the first movable pin is in the first position, and the second actuator being configured to in the extended position to engage with the cam of the first movable pin when the first movable pin is in the second position, wherein the write head is configured to move in a direction that is parallel to the planar top surface of the display substrate.
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Abstract
Embodiments disclosed herein describe systems and methods for a tactile braille display that reduces the number of actuators used to position movable pins. In embodiments, the actuators may be configured to move a plurality of movable pins at different times while also being configured to move independent movable pins.
18 Citations
16 Claims
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1. A tactile braille display comprising:
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a display substrate with a planar top surface; a plurality of movable pins configured to be positioned within the display substrate, and the plurality of movable pins being configured to move between a first position and a second position, each of the plurality of movable pins including a first end, a shaft, and a second end, the first end being configured to provide a raised dot of a braille character when the movable pin is in the second position, wherein in the second position the first end is positioned above the planar top surface, the shaft being configured to secure the movable pin within the display substrate and move in a helical path within the display substrate, the second end including a cam, wherein the plurality of movable pins includes a first movable pin; a write head configured to interface with the plurality of movable pins, the write head including a first actuator and a second actuator, the first actuator being configured to be in an extended positioned to engage with the cam of the first movable pin when the first movable pin is in the first position, and the second actuator being configured to in the extended position to engage with the cam of the first movable pin when the first movable pin is in the second position, wherein the write head is configured to move in a direction that is parallel to the planar top surface of the display substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method utilizing a tactile braille display comprising:
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embedding a plurality of movable pins within a display substrate, the display substrate including a planar top surface, the plurality of movable pins including a first movable pin; moving the plurality of movable pins between a first position and a second position within the display substrate via a write head, the display substrate having a planar top surface; interfacing a first actuator positioned within the write head with a cam positioned on a second end of the first movable pin when the first movable pin is in the first position, wherein the write head is configured to move in a direction that is within a plane parallel to the planar top surface of the display substrate; interfacing a second actuator positioned within a write head with the cam positioned on the second end of the first movable pin when the first movable pin is in the second position. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification