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US 11,768,385 B2Granted
3D display device and display method
AssigneeBoe Technology Group Co., Ltd.
InventorsJunxing Yang, Tao Hong, Sen Ma
Life of this patent
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Abstract
The present disclosure relates to a 3D display device, includes: a display panel; a lens layer arranged on a light exit side of the display panel, and including a plurality of convergent lenses arranged in an array; a human eye tracker provided on a side of the lens layer away from the display panel, the human eye tracker being used to determine spatial positions of one or more viewers' eyes relative to the display panel when facing the display panel; and a controller electrically connected to the display panel and the human eye tracker, the controller being used to receive the spatial positions and control subpixels of the display panel corresponding to the spatial positions to display image slices corresponding to the spatial positions.
Claims10
A 3D display device, comprising:
- a display panel;
- a lens layer arranged on a light exit side of the display panel, and comprising a plurality of convergent lenses arranged in an array;
- a human eye tracker provided on a side of the lens layer away from the display panel, wherein the human eye tracker is configured to determine spatial positions of one or more viewers' eyes relative to the display panel when facing the display panel;
- and
- a controller electrically connected to the display panel and the human eye tracker, wherein the controller is configured to receive the spatial positions and control subpixels of the display panel corresponding to the spatial positions to display image slices corresponding to the spatial positions;
- wherein the 3D display device further comprises:
- a polarization modulation member arranged between the display panel and the lens layer, and electrically connected to the controller;
- wherein the human eye tracker is configured to determine at least two spatial positions of at least two viewers' eyes relative to the display panel when facing the display panel, the at least two spatial positions corresponding to at least two moments within a preset time period one to one;
- wherein the controller is configured to control subpixels corresponding to the at least two spatial positions to start to display image slices corresponding to the at least two spatial positions at corresponding moments;
- wherein the polarization modulation member is configured to, according to the at least two spatial positions, adjust polarization modulation states of the polarization modulation member to make light from the subpixels corresponding to the at least two spatial positions pass through the polarization modulation member at a corresponding moment, so that the light is incident on a correspond one of the viewers;
- wherein the polarization modulation member comprises:
- a first polarization modulator arranged on the light exit side of the display panel, wherein the first polarization modulator comprises a plurality of first modulation units arranged in an array, and one subpixel of the display panel corresponds to one of the first modulation units of the first polarization modulator, and the first modulation units are configured to modulate polarization states of light emitted by corresponding subpixels;
- and
- a second polarization modulator arranged on a side of the first polarization modulator away from the display panel, wherein the second polarization modulator comprises a plurality of second modulation units arranged in an array, one of the convergent lenses in the lens layer corresponds to one of the second modulation units of the second polarization modulator, and the second modulation units are configured to modulate polarization states of light passing through the first polarization modulator and make the light pass through or block the light;
- wherein the 3D display device further comprises:
- a light-transmitting substrate arranged between the first polarization modulator and the second polarization modulator;
- wherein the display panel and the lens layer meets the following relational expressions:
- L
- f
- =
- w
- P
- x
- L
- L
- +
- f
- -
- D
- 1
- D
- 2
- D
- 2
- =
- N
- *
- P
- x
- t
- =
- n
- *
- f
- where L is a viewing distance from the viewers' eyes to the light-transmitting substrate;
- f is a focal length of each convergent lens in air;
- D1 is a width of each convergent lens, D2 is a width of a pixel island, and D1≤D2;
- N is a number of subpixels in a width direction of one pixel island, with a value of 4;
- Px is a width of a single subpixel;
- w is an interpupillary distance of a person, with a value of 65 mm;
- t is a thickness of the light-transmitting substrate;
- and n is a refractive index of the light-transmitting substrate.
49 more elements
A display method for a 3D display device, wherein the 3D display device comprises:
- a display panel;
- a lens layer arranged on a light exit side of the display panel, and comprising a plurality of convergent lenses arranged in an array;
- a human eye tracker provided on a side of the lens layer away from the display panel, wherein the human eye tracker is configured to determine spatial positions of one or more viewers' eyes relative to the display panel when facing the display panel;
- and
- a controller electrically connected to the display panel and the human eye tracker, wherein the controller is configured to receive the spatial positions and control subpixels of the display panel corresponding to the spatial positions to display image slices corresponding to the spatial positions;
- wherein the method comprises:
- determining spatial positions of one or more viewers' eyes relative to a display panel when facing the display panel;
- and
- controlling subpixels of the display panel corresponding to the spatial positions to display image slices corresponding to the spatial positions;
- wherein the determining spatial positions of one or more viewers' eyes relative to a display panel when facing the display panel, comprises:
- determining at least two spatial positions of at least two viewers' eyes relative to the display panel when facing the display panel, the at least two spatial positions corresponding to at least two moments within a preset time period one to one;
- wherein determining at least two spatial positions of at least two viewers' eyes relative to the display panel when facing the display panel, comprises:
- determining, at a first moment, first spatial positions of eyes of a first viewer relative to the display panel when the eyes of the first viewer face the display panel;
- and
- determining, at a second moment, second spatial positions of eyes of a second viewer relative to the display panel when the eyes of the second viewer face the display panel;
- wherein after the first spatial positions are determined, the display method further comprises:
- controlling subpixels corresponding to the first spatial positions to start to display image slices corresponding to the first spatial positions at the first moment, and according to the first spatial positions, adjusting polarization modulation states of the polarization modulation member to make light from the subpixels corresponding to the first spatial positions pass through the polarization modulation member at the first moment, so that the light is incident only onto the first viewer;
- wherein after the second spatial positions are determined, the display method further comprises:
- controlling subpixels corresponding to the second spatial positions to start to display image slices corresponding to the second spatial positions at the second moment, and according to the second spatial positions, adjusting polarization modulation states of the polarization modulation member to make light from the subpixels corresponding to the second spatial positions pass through the polarization modulation member at the second moment, so that the light is incident only on the second viewer;
- wherein a time interval between the first moment and the second moment is smaller than a refresh time of human vision.
17 more elements
Dependencies are inferred from the claim text.