WO2017177671A1 - 显示装置 - Google Patents
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- WO2017177671A1 WO2017177671A1 PCT/CN2016/105358 CN2016105358W WO2017177671A1 WO 2017177671 A1 WO2017177671 A1 WO 2017177671A1 CN 2016105358 W CN2016105358 W CN 2016105358W WO 2017177671 A1 WO2017177671 A1 WO 2017177671A1
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- light
- display panel
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
- G02F1/133548—Wire-grid polarisers
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
- G02F1/291—Two-dimensional analogue deflection
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
- G02F1/294—Variable focal length devices
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/128—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode field shaping
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/30—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 grating
- G02F2201/305—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 grating diffraction grating
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2203/00—Function characteristic
- G02F2203/62—Switchable arrangements whereby the element being usually not switchable
Definitions
- Embodiments of the present disclosure relate to a display device.
- the displays in the related art are mostly flat displays. As shown in FIG. 1, assuming that the viewer views the program directly in front of the flat display, the distance between the viewer and the center of the screen (L1) and the distance between the viewer and the two sides of the screen (L2) are not equal, which makes When the viewer is watching, the brightness of the image presented on both sides of the screen is incident on the human eye in an oblique direction (ie, not perpendicular to the display screen). Usually in this case, the viewer can receive the peak brightness emitted from the center of the screen.
- the curved display has a screen that is curved by physical bending.
- the distance between the viewer and the center of the screen (L1) is equal to the distance between the two sides of the screen (L1), at this time, regardless of the center of the screen or both sides of the screen.
- the peak brightness emitted by the viewer is directly opposite to the viewer, so that the viewer can enjoy the viewing effect of the equidistance.
- curved displays require physical bending of the screen, which requires high flexural properties of the material and is difficult to implement in the process.
- An embodiment of the present disclosure provides a display device including: a flat display panel; and a liquid crystal lens, the liquid crystal lens is located in a light emitting direction of the display panel, and the liquid crystal lens is used to direct the light emitted by the display panel The direction of the center plane converges, the center plane being perpendicular to the display panel and passing through the vertical centerline of the display panel.
- the liquid crystal lens includes: a first electrode and a second electrode disposed opposite to each other, wherein the first electrode includes a plurality of strip-shaped first sub-electrodes arranged in parallel, each of the first sub-electrodes An electrode extends along a vertical center line direction of the display panel; and a liquid crystal layer disposed between the first electrode and the second electrode.
- the plurality of first sub-electrodes include an intermediate first sub-electrode at an intermediate position, and a width of the first sub-electrode on a same side of the intermediate first sub-electrode is away from the middle The direction of a sub-electrode gradually decreases.
- the first electrode further includes: at least one second sub-electrode extending along a vertical center line direction of the display panel; wherein each of the first sub-electrodes is configured to be applied a voltage of a first polarity; the second electrode is configured to apply a voltage of a second polarity, the first polarity being opposite to the second polarity.
- the at least one second sub-electrode includes a plurality of the second sub-electrodes, and a vertical projection of at least one of the first sub-electrodes on a plane of the flat display panel is located in the plurality of Any two of the second sub-electrodes are between vertical projections on the face of the planar display panel.
- the width of the second sub-electrode is less than the width of the first sub-electrode adjacent thereto.
- the second electrode is a face electrode.
- the liquid crystal lens includes: a first electrode and a second electrode disposed opposite to each other, wherein the first electrode includes a plurality of first sub-electrodes arranged in an array; and a liquid crystal layer, the liquid crystal layer Provided between the first electrode and the second electrode.
- the display panel includes: a first substrate and a second substrate disposed opposite and in parallel, wherein the second substrate is closer to the liquid crystal lens relative to the first substrate;
- the light correcting portion is carried by the first substrate or the second substrate, and the light correcting portion is configured to correct incident light to be emitted light perpendicular to a surface of the display panel.
- the display panel is a passive display panel
- the display device further includes: a backlight module;
- the backlight module includes: a light source, and a light correcting portion located in a light emitting direction of the light source, the light correcting portion For correcting incident light to be emitted light perpendicular to the panel surface of the display panel.
- the backlight module further includes: a light guide plate, the light source is located at a side of the light guide plate, and the light correcting portion is located in a light emitting direction of the light guide plate, and the light guide plate is facing
- the light correcting portion has a light collecting groove on a surface thereof; a part of the light emitted by the light source is totally reflected in the light guiding plate, and another portion is emitted from the light collecting groove and enters the light correcting portion.
- the light correcting portion includes: a diffraction grating having a grating surface and a groove surface, the groove surface including a plurality of sub-groove surfaces, and each of the sub-groove surfaces is inclined with respect to the flat display panel Provided, wherein the grating surface is a light incident surface, the groove surface is a light exit surface; and a first dielectric layer, the first dielectric layer is located on a groove surface of the diffraction grating, and is emitted from the diffraction grating The light is refracted through the light exit surface of the first dielectric layer to become an outgoing light perpendicular to the surface of the display panel.
- the light correcting portion further includes: a second dielectric layer, the second dielectric layer is located on a light exit surface of the first dielectric layer, and a light exit surface of the second dielectric layer is parallel to The display panel panel.
- the light ray correction portion includes: a diffraction grating having a grating surface and a groove surface, the groove surface including a plurality of sub-groove surfaces, and the sub-groove surface is parallel to the display panel surface Wherein the grating surface is a light incident surface, and the groove surface is a light exit surface.
- the diffraction grating includes a plurality of grooved portions arranged in a plurality of cycles, and the grooved portion in each cycle includes a plurality of grooved groups arranged, and each of the grooved groups includes a grooved portion
- the number of the grooves is the same, and the shape of the groove portions in the same groove group is the same, and the shape of the groove portions in the different groove groups is different.
- FIG. 1 is a schematic diagram of a viewing plane display in the related art
- FIG. 2 is a schematic structural view of a curved display in the related art
- FIG. 3 is a schematic view showing a curved display in the related art
- 4A is an optical path diagram of a display device according to an embodiment of the present disclosure.
- FIG. 4B is a schematic diagram of the display device shown in FIG. 4 according to an embodiment of the present disclosure.
- FIG. 5A is a schematic perspective structural view of a liquid crystal lens according to an embodiment of the present disclosure.
- FIG. 5B is a side view of a liquid crystal lens according to an embodiment of the present disclosure.
- 5C is a side view of a liquid crystal lens according to an embodiment of the present disclosure.
- 5D is a side view of a liquid crystal lens according to an embodiment of the present disclosure.
- Figure 5E is a partial enlarged view of a portion D in Figure 5D;
- 5F is a side view of a liquid crystal lens according to an embodiment of the present disclosure.
- Figure 5G is a partial enlarged view of the portion E in Figure 5D;
- 5H is a schematic perspective structural view of a liquid crystal lens according to an embodiment of the present disclosure.
- FIG. 6 is a schematic diagram of an optical path of a liquid crystal lens equivalent convex lens according to an embodiment of the present disclosure
- FIG. 7 is a schematic diagram of a position of a light correcting portion in a display device according to an embodiment of the present disclosure.
- FIG. 8 is a schematic diagram of a liquid crystal display device according to an embodiment of the present disclosure.
- FIG. 9 is a schematic diagram of another liquid crystal display device according to an embodiment of the present disclosure.
- FIG. 10 is a schematic diagram of a diffraction grating according to an embodiment of the present disclosure.
- FIG. 11 is a schematic diagram of a light correction unit according to an embodiment of the present disclosure.
- FIG. 12 is a schematic diagram of a light correction unit according to an embodiment of the present disclosure.
- FIG. 13 is a schematic diagram of a light correction unit according to an embodiment of the present disclosure.
- FIG. 14 is a schematic diagram of a light correction unit according to an embodiment of the present disclosure.
- FIG. 15 is a schematic diagram of a light correction unit according to an embodiment of the present disclosure.
- 16 is a schematic diagram of a diffraction grating provided by an embodiment of the present disclosure.
- Figure 17 is a schematic view of a diffraction grating provided by an embodiment of the present disclosure.
- FIG. 18 is a schematic diagram of an active display device according to an embodiment of the present disclosure.
- FIG. 19 is a schematic diagram of another display device according to an embodiment of the present disclosure.
- FIG. 20 is a schematic structural view of a backlight module in the display device shown in FIG. 19.
- a flat display panel (also referred to as a display screen) is matched with the liquid crystal lens.
- the liquid crystal lens can deflect the light emitted from the display panel to the viewing direction of the viewer, thereby substantially achieving equidistance. The sense of embracing surrounds the effect.
- Display device provided by embodiment of the present disclosure, package
- the display panel and the liquid crystal lens which can converge the light emitted by the display panel in the direction of the center surface can realize the curved surface display effect by adding a liquid crystal lens without bending the display panel. Since the display panel is flat, physical bending is not required, so that the problem that the curved display has high requirements on the material bending property and the difficulty in the process realization can be overcome.
- an embodiment of the present disclosure provides a display device 1 including a planar display panel 11 and a liquid crystal lens 12.
- the reason why the display panel 11 is planar is to distinguish it from the curved display screen, which indicates that the two surfaces of the display panel 11 (ie, the display surface 11a and the back surface 11b opposite to the display panel) are both planar. And usually the two are almost parallel.
- the light outgoing direction of the display panel 11 is perpendicular to the display panel surface.
- the board surface of the display panel 11 refers to, for example, the light-emitting surface of the display panel 11 facing the liquid crystal lens 12. That is, the light emitted from the display panel 11 is mainly emitted from the display surface 11a in a direction perpendicular to the panel surface of the display panel (direction A in the drawing).
- the reason why "main" is emphasized is that there is often an error between the facts and the theory.
- the light rays emitted from the display panel 11 are all perpendicular to the display panel surface, and it is required to have only a predetermined wavelength of light.
- the display panel of the related art emits light from different angles, and thus its viewing angle (visual angle) is usually not zero.
- the vertical light ray indicates that the display panel in this embodiment has a smaller viewing angle than the light emitted by the display panel in the related art, and generally the smaller the viewing angle, the better, if all the light is perpendicular to the display panel.
- the angle of view is 0 degrees.
- the light emitted by the ideal display panel can only be extended when the human eye is in the S area (in the direction perpendicular to the display panel in the plane of the display surface of the display panel).
- the formed three-dimensional space is inside, it can be injected into the human eye, and the viewer can see the picture presented by the display panel; if it is outside the S area, the picture cannot be seen.
- it is generally expected to have a large viewing angle.
- it is desirable that the viewing angle of the display panel is as small as possible, and if the viewing angle is 0 degrees, it is optimal.
- the display panel 11 can be an active display panel, and the display panel can be self-illuminating; It is a passive display panel, which usually provides backlighting for the backrest optical module. How to make the display panel emit vertical light will be described in detail in the following embodiments for different types of display panels.
- the light emitted by the display panel 11 is not vertical light, however, if the display panel 11 can emit vertical light, the effect of the vertical light after convergence is better.
- the liquid crystal lens 12 is located in the light outgoing direction of the display panel 11.
- the liquid crystal lens 12 can be closely attached to the display surface of the display panel 11, and the two are separated and drawn in order to show the transmission of clear light.
- the liquid crystal lens 12 is for condensing light emitted from the display panel 11 in the direction of the center plane 20, which is a virtual plane perpendicular to the display panel 11 and passing through the vertical center line 11c of the display panel.
- the center plane 20 is shown by a plane perpendicular to the display panel 11 as indicated by a broken line and passing through the vertical center line 11c of the display panel.
- the horizontal center line 11d refers to a center line which is approximately parallel to the line connecting the eyes of the viewer when the display panel is placed in a normally viewed manner; thus, the vertical center line 11c is clear.
- the display device composed of the liquid crystal lens 12 and the display panel 11 can be used as a novel display panel, which can be used for a flat display panel that exhibits a curved surface display effect.
- the light emitted by the display panel 11 converges in the direction of the center surface 20 only to deflect the light emitted from both sides of the center surface toward the center surface 20.
- a light L1 emitted from the display panel 11 is parallel to the horizontal plane on which the display panel is placed, and then the light L1 passes through the liquid crystal lens 12 to obtain the light L2, which is also parallel to the horizontal plane, and the height of the L1 from the horizontal plane. It is equal to the height of the horizontal plane from L2.
- the converging position can be used as the optimal viewing position.
- this embodiment does not require that all of the emitted light converge on the center plane 20, and only the light is required to be deflected toward the center plane before passing through the liquid crystal lens 12 before passing through the liquid crystal lens 12.
- the liquid crystal lens 12 functions, for example, to change the transmission direction of the vertical light, and thus there are many devices that can perform this function.
- the size of the liquid crystal lens 12 is substantially the same as the size of the display panel.
- the curved display of the related art has a curved screen, resulting in its thickness. D will be thicker than the flat panel display.
- the liquid crystal lens is used to realize the deflection of the light, and the liquid crystal lens 12 can be formed into a planar shape and the thickness is relatively thin, which is advantageous for reducing the thickness of the entire display device in this embodiment.
- the degree of adjustment of the light can be changed. For example, the voltage applied to the electrodes in the liquid crystal lens can be adjusted as needed, that is, the electric field in the liquid crystal lens can be adjusted, so that the convex lens equivalent to the liquid crystal lens is variable. In this way, in practical applications, a corresponding voltage can be applied to the liquid crystal lens according to the position of the viewer, so that the viewing effect is optimal.
- the liquid crystal lens 12 includes a first electrode 121 and a second electrode 122 disposed opposite to each other, and a liquid crystal layer 123 disposed between the first electrode 121 and the second electrode 122.
- the first electrode 121 includes a plurality of strip-shaped first sub-electrodes 121a arranged in parallel, each of the first sub-electrodes 121a extending in a direction of the vertical line 11c of the display panel.
- the width of each of the first sub-electrodes 121a is constant.
- the positions of the first electrode and the second electrode may be interchanged.
- the opposite arrangement of the first electrode 121 and the second electrode 122 means that the two electrodes have opposite portions to form an electric field between the electrodes.
- the second electrode 122 may be similar to the first electrode 121, and is composed of a plurality of strip-shaped sub-electrodes, and the sub-electrodes are in one-to-one correspondence with the first sub-electrodes.
- the second electrode 122 is a surface electrode.
- the electric field formed by the first electrode 121 and the second electrode 122 gradually increases from the middle to the two sides; so that the incident light from the middle incident light to the edge passes through the liquid crystal lens, as shown in FIG. 4B.
- the angle of the deflection gradually increases.
- a liquid crystal lens requires a closed space due to the inclusion of a liquid crystal layer. As shown in Fig. 5C, this closed space can be obtained by pairing two substrate substrates 124, 125. Of course, it is also possible to form a closed space (not shown in the drawings) from a base substrate and a display panel.
- Embodiments of the present disclosure do not limit the type of liquid crystal lens.
- the incident angle is ⁇ 1 and the refraction angle is ⁇ 2 .
- the following formula can be obtained:
- liquid crystal parameter ⁇ n of the liquid crystal can be determined by actually selecting the corresponding liquid crystal, and the cell thickness d of the liquid crystal lens can be calculated according to the above formula.
- the above calculation method is by way of example only, and the embodiment of the present disclosure is not limited to this algorithm to obtain relevant parameters of the liquid crystal lens to manufacture a liquid crystal lens that meets the requirements of these parameters.
- the width of the first sub-electrode 121a becomes gradually smaller.
- the electrode width of the first sub-electrode 121a may be gradually decreased from the middle to the two sides; that is, the closer to the intermediate position, the larger the width of the first sub-electrode 121a, the farther away from the intermediate position of the first sub-electrode 121a The smaller the width, the different electrode widths in the respective first sub-electrodes 121a from the middle to the one side.
- the electrode width of the first sub-electrode is gradually decreased from the middle to the both sides; for this implementation, adjacent first sub-electrodes 121a are allowed from the middle to the side. Two or more of the first sub-electrodes 121a have the same electrode width.
- the electrode width of the first sub-electrode located at the intermediate position is m1 toward the left side. In the direction, one first sub-electrode having a width m2, two first sub-electrodes having a width m3, two first sub-electrodes having a width m4, and three first sub-electrodes having a width m5 are arranged in this order.
- the liquid crystal lens is required to be equivalent to a convex lens (dashed line in FIG. 5D), the curvature of the middle portion is relatively flat, and the curvature of the both sides is large. At this time, it is necessary to perform finer adjustment of the liquid crystals on both sides, and thus it is required that the distribution density (the number of units per unit area) of the first sub-electrodes on both sides is larger than the distribution density in the intermediate portion.
- the equivalent convex lens formed by the liquid crystal lens in the present embodiment is symmetrical.
- the left and right sides of the equivalent convex lens formed by the liquid crystal lens are the same.
- the voltage between the first electrode 121 and the second electrode 122 is gradually increased from the middle to the both sides, for example.
- the voltage value of the second electrode 122 of FIG. 5D is 0V
- the voltage values of the first sub-electrodes from the left side to the middle of FIG. 5D may be 9V, 8V, 7V, 6V, 5V, 4V, 3V, 2V, 1V, can be the same from the right side to the middle of Figure 5D.
- the voltage value of the second electrode 122 of FIG. 5D is 0V
- the voltage values of the first sub-electrodes from the left side to the middle of FIG. 5D may be 8V, 8V, 7V, 6V, 6V, 4V, 3V. 2V, 1V, can be the same from the right side to the middle of Figure 5D.
- Fig. 5E is an enlarged view of a portion D of Fig. 5D showing the direction of the electric field formed when the voltage values applied by the adjacent two first sub-electrodes are different.
- the first electrode 121 further includes: at least one second sub-electrode 121b extending along a vertical center line direction of the display panel.
- the width of each of the first sub-electrodes 121a is constant.
- Each of the second sub-electrodes 121b is adjacent to only the first sub-electrode 121a. That is, there is no case where two second sub-electrodes 121b are adjacent.
- the direction of the electric field that the first sub-electrode 121a and the second electrode 122 can form is opposite to the direction of the electric field that the second sub-electrode 121b and the second electrode 122 can form.
- the width of the second sub-electrode 121b is smaller than the width of the first sub-electrode 121a adjacent thereto. This is to prevent this reverse electric field from being placed too far into the forward electric field that would otherwise be needed.
- an embodiment of the present disclosure may further provide a structure of a liquid crystal lens, a liquid crystal lens package.
- the first electrode 121 and the second electrode 122 are disposed opposite to each other, wherein the first electrode 121 includes a plurality of first sub-electrodes 121c arranged in an array.
- the array includes, for example, at least a plurality of first sub-electrode rows and a plurality of first sub-electrode columns.
- the liquid crystal lens further includes a liquid crystal layer 123 disposed between the first electrode 121 and the second electrode 122.
- the action of a row of the first sub-electrodes 121c arranged in the vertical center line direction of the display panel can be equivalent to one of the first sub-electrodes 121a in FIG. 5A. Therefore, the voltage magnitude of the first sub-electrode 121c of each column can refer to the voltage level of one first sub-electrode 121a, which will not be described here.
- the first sub-electrode 121c is arranged in a dot matrix arrangement, so that the display device can be rotated by 90 degrees, that is, the original vertical center line becomes a horizontal center line, and when the original horizontal line becomes a vertical center line, the first electrode can also be passed.
- the second electrode is energized such that the vertical light converges along the new center plane.
- the display device provided by the embodiment of the present disclosure includes a display panel and a liquid crystal lens that can converge the light emitted by the display panel toward the center surface, thereby substantially realizing the surface of the display panel 11 by adding a liquid crystal lens without bending. The effect displayed. Further, if the light emitted by the display panel is vertical light, the surface display is better. Since the display panel is flat, physical bending is not required, so that the problem that the curved display of the related art has high requirements on the bendability of the material and is difficult in the process realization can be overcome.
- the embodiment of the present disclosure provides a display device.
- the structure of the display panel is described below.
- the display panel can emit vertical light.
- the display panel 11 is of various types. However, referring to FIG. 7 for any display panel, the first substrate 111 and the second substrate 112 are disposed opposite to each other in parallel. A pixel structure (the portion between 112 and 111 in the drawing) that can realize display is usually disposed between the two substrates. In order to simplify the description, the pixel structure is not drawn in detail in this embodiment.
- the material of the substrate may be transparent glass or the like.
- the second substrate 112 is defined closer to the liquid crystal lens 12 with respect to the first substrate 111, that is, the substrate near the liquid crystal lens 12 is referred to as a second substrate 112,
- the substrate remote from the liquid crystal lens 12 is referred to as a first substrate 111.
- the display panel 11 further includes: light correction In the portion 113, the light correcting portion 113 is carried by the first substrate 111 or the second substrate 112. It should be noted that the light correcting portion 113 is carried by the first substrate 111, and the light correcting portion 113 is formed on the first substrate 111, and may be located inside the first substrate 111 (the first position in the drawing) It may also be located outside the first substrate 111 (the second position in the drawing). Similarly, if the light correcting portion 113 is carried by the second substrate 112, it may be located inside the second substrate 112 (the fourth position in the drawing) or outside the second substrate 112 (the first in the figure) Three positions).
- FIG. 7 is exemplified by the first position where the light correction unit 113 is disposed on the display panel, and the other positions are only the positions at which the light correction unit 113 located at the first position can be moved.
- the light correcting portion 113 is in close contact with the surface of the substrate, but in fact, another layer may be provided between the light correcting portion 113 and the substrate.
- an upper polarizer may be disposed between the second substrate 112 and the light correcting portion 113.
- the light correcting portion 113 may be disposed on the upper polarizer and the second. Between the substrates 112.
- the light correcting portion 113 is for correcting incident light to be emitted light perpendicular to the panel surface of the display panel.
- the incident light refers to the light incident on the light correcting portion 113
- the emitted light refers to the light emitted from the light correcting portion 113. If the light correcting portion 113 is located at the first position of FIG. 7, the direction of transmission of the light emitted by the light correcting portion 113 can be referred to the upward arrow in the drawing. In this way, the display panel 11 can emit vertical light.
- the influence of the pixel structure on the light transmission direction is relatively small, it can be ignored in this embodiment.
- passive display panel As is well known, such a display panel cannot emit light by itself, and can rely on the light emitted by the backlight module to realize display, so it can be called a passive display panel.
- the passive display panel is described in detail by taking a liquid crystal display panel as an example.
- the display panel 11 includes a first substrate 111 and a second substrate 112, and a liquid crystal layer 114 between the first substrate 111 and the second substrate 112. Since the liquid crystal display panel cannot emit light by itself, it is necessary to provide backlighting by the backlight module. For example, the light emitted by the backlight module is not vertical light. Therefore, the display panel 11 in this embodiment needs to correct the backlight emitted by the backlight module into vertical light.
- the display panel 11 further includes: a wire grid polarizer (WGP) 115 disposed on the first substrate 111.
- WGP wire grid polarizer
- the metal wire grid polarizing plate 115 may be disposed outside the first substrate 111 or may be disposed inside the first substrate 111.
- the metal wire grid polarizing plate 115 can be made using a nanoimprint technique.
- the display panel 11 further includes a wire grid polarizer (WGP) 115 disposed inside the first substrate 111.
- the metal wire grid polarizing plate 115 can replace the original lower polarizer.
- the upper polarizer 116 can be disposed outside the second substrate 112.
- the metal wire grid polarizing plate may be between the first substrate 111 and the liquid crystal layer 114.
- it may be disposed on the inner side surface (also referred to as the upper surface) of the first substrate 111 to be in contact with the inner surface of the first substrate 111.
- the display panel 11 is an ordinary liquid crystal display panel, that is, an array substrate and a color filter substrate.
- the first substrate 111 may serve as a substrate of the array substrate, and the second substrate 112 may serve as a substrate of the color filter substrate; of course, the first substrate 111 may serve as a substrate of the color filter substrate, and the second substrate 112 may serve as a substrate.
- the first substrate 111 is provided with a pixel electrode arranged in an array, a signal line for applying a voltage to the pixel electrode, a switching unit, etc., and further may include a common electrode. Etc. (These elements or layer structures are not shown in the drawings, refer to the related art); the second substrate 112 is provided with a color film layer, a black matrix, etc. (these layers are not shown in the drawings, and reference may be made to the relevant technology).
- the display panel 11 in this embodiment further includes a light correcting portion 113.
- the light correcting portion 113 is disposed between the first substrate 111 and the second substrate 112, that is, the light correcting portion 113 is in an in cell structure.
- the light correcting portion 113 is formed inside the first substrate.
- the light correcting portion 113 may be disposed on the TFT structure inside the first substrate 111, that is, the TFT structure is first formed on the first substrate 111, and the light correcting portion 113 is formed; and the first substrate 111 may be disposed on the first substrate 111.
- a light correction portion 113 is formed between the TFT structure and the first substrate 111, and a TFT structure is formed on the light correction portion 113.
- the light correcting portion 113 may be formed inside the second substrate 112. at this time, The light correcting portion 113 can be formed on the color film, that is, the color film is first formed on the second substrate 112, and the light correcting portion (not shown) is formed on the color film; and the second substrate 112 can also be disposed on the second substrate 112. A light correction portion 113 is formed between the color film 117 and the second substrate 112, and a color film 117 is formed on the light correction portion 113.
- the size of the light correcting portion 113 may be the same as the size of the display panel, at least the same as the size of the display area in the display panel (ie, the area where light is emitted for display).
- the light correcting portion 113 may include a diffraction microstructure.
- the diffractive microstructure may be a diffraction grating 40 as shown in FIG.
- the diffraction grating 40 is made of a transparent material and is a transmissive diffraction grating having a grating surface 40a and a groove surface 40b, and may be, for example, a blazed grating.
- the groove surface 40b is zigzag, and the angle between the zigzag groove surface 40b and the grating surface 40a is called a blaze angle, and is denoted as ⁇ .
- the blaze angle is an acute angle.
- the diffraction grating 40 includes a plurality of grooved portions, and the width corresponding to each groove portion is referred to as a groove period, denoted as d; d and ⁇ of each groove portion may be the same or different .
- the adjacent surface (which borrows the meaning of the adjacent side) of the blaze angle ⁇ in the two faces constituting one groove portion is referred to as a sub-groove surface.
- the light incident to the diffraction grating 40 can be converted into parallel light of a predetermined wavelength and emitted at a predetermined angle.
- Other incident light rays are not reinforced, that is, the energy is weak, and this portion of the light is not considered in this embodiment.
- the diffraction grating 40 has a selective effect on incident light, and a parallel beam output perpendicular to the sub-groove surface can be selected.
- the diffraction grating 40 can select a plurality of sets of parallel beams, each set of parallel beams being perpendicular to the sub-groove surface, that is, when each sub-segment When the groove faces are parallel, the light emitted from the diffraction grating 40 is parallel light perpendicular to the entire groove surface 40b.
- the light emission band is different.
- the following light correcting section 113 is provided in the present embodiment.
- the light correcting portion 113 provided in this embodiment can refer to FIG. 11 and includes a diffraction grating 40 and a first dielectric layer 41.
- the diffraction grating 40 has a grating surface 40a and a groove surface 40b.
- the groove surface 40b includes a plurality of sub-groove surfaces, and each sub-groove surface is inclined (so-called oblique arrangement, that is, not parallel to the display panel surface, nor perpendicular to the display panel surface) .
- the grating surface 40a is a light incident surface
- the groove surface 40b is a light exit surface.
- the grating surface 40a is parallel to the display panel surface, and then the sub-groove surface is necessarily inclined; and in combination with the working principle of the diffraction grating, the light emitted from the groove surface 40b may be vertical.
- the light emitted from the groove surface 40b is not perpendicular to the surface of the display panel, so that it is necessary to perform another correction through the first dielectric layer 41.
- the respective sub-groove surfaces of the groove surface 40b are disposed in parallel.
- the first dielectric layer 41 is located on the groove surface 40b of the diffraction grating, and the light emitted from the diffraction grating 40 is refracted by the light exit surface 41b of the first dielectric layer to become an outgoing light perpendicular to the surface of the display panel.
- the light emitted from the diffraction grating 40 is parallel rays perpendicular to the groove surface 40b, which simplifies the design of the light exit surface 41b of the first dielectric layer.
- the light exit surface 41b of the first dielectric layer may be a slope, for example, the slope is flat.
- the thickness of the left end of the first dielectric layer 41 is still relatively large. Therefore, in the present embodiment, for example, as shown in FIG. 12, the light exit surface 41b of the first dielectric layer includes a plurality of parallel refractive sub-surfaces 41b_1, each of which is a flat slope as shown.
- the light exit surface 41b further includes a connector face 41b_2 that connects the refractive sub-surfaces 41b_1.
- the refractive sub-surface 41b_1 is used for refracting the light emitted from the diffraction grating 40 into the light of the vertical display panel surface; in addition to the connection function of the connection sub-surface 41b_2, in order to avoid interference with light, for example, the connection sub-surface can be 41b_2 is perpendicular to the sub-groove surface of the diffraction grating 40.
- the medium W Light is refracted at the interface of the first dielectric layer 41 and other transparent media (referred to as the medium W).
- the transmission direction of the incident light l1 is known, and the transmission direction of the refracted light 12 is required to satisfy the requirements of the vertical display panel surface, and thus is also known.
- the refractive index n1 of the first dielectric layer 41 is known.
- the refractive index n2 of the medium W can also be known; for example, if the light correcting portion 113 includes only the diffraction grating 40 and the first dielectric layer 41, and the first dielectric layer 41 Directly contacting the liquid crystal layer, n2 is the refractive index of the liquid crystal layer; for example, if the light correcting portion 113 only contains The diffraction grating 40 and the first dielectric layer 41 are in two parts, and the light correcting portion 113 is located outside the polarizer on the display panel, and then n2 is the refractive index of the air.
- the sub-groove surface of the groove surface 40b is opposite to the oblique direction of the light exit surface 41b of the first dielectric layer.
- the sub-groove surface is an oblique direction of the left low right height
- the light exit surface 41b of the first dielectric layer is an oblique direction of the left high right and the low right, which is advantageous for thinning of the light correcting portion 113.
- the light correcting portion 113 further includes a second dielectric layer 42 located on the light exit surface of the first dielectric layer 41, and the second dielectric layer 42
- the light exit surface is parallel to the display panel surface. Since the light refracted from the light exit surface of the first dielectric layer 41 is already perpendicular to the display panel surface, the light is not refracted when passing through the exit surface of the second dielectric layer 42, so that the light emitted by the light correction 113 is vertical. On the display panel surface.
- the embodiment further provides another light correcting portion 113, which includes a diffraction grating 40 having a grating surface 40a and a groove surface 40b.
- the groove surface 40b includes a plurality of sub-groove surfaces, and the sub-groove The groove surface 40b is parallel to the display panel surface, wherein the grating surface 40a is a light incident surface, and the groove surface 40b is a light exit surface.
- the outgoing light from the diffraction grating 40 can be of a specific wavelength and perpendicular to the surface of the display panel.
- the light correcting portion 113 includes only the diffraction grating 40, the grating surface 40a of the diffraction grating 40 is inclined in this case, and the diffraction grating 40 at this time is not easily provided in the display panel. Therefore, for example, the light correcting portion 113 further includes a first dielectric layer 51 on which the diffraction grating 40 is located, and the grating surface 40a of the diffraction grating is bonded to the first dielectric layer 51. Thus, the first dielectric layer 51 functions to support the diffraction grating.
- the light correcting portion 113 may further include: a second dielectric layer 52, the second dielectric layer being located on the groove surface 40b of the diffraction grating And the light exit surface of the second dielectric layer 52 is parallel to the display panel surface.
- the added second dielectric layer 52 does not change the direction of transmission of the original vertical light.
- Each of the gate 40 and the first dielectric layer 51 may include a plurality, and each of the dielectric layers 51 and the diffraction grating 40 located thereon are periodically arranged in a direction parallel to the panel surface of the display panel. Thereby, the thickness of the smaller light correcting portion 113 can be obtained.
- the above mainly describes the transmission direction of the light.
- a diffraction grating compatible with the color characteristics can be designed.
- the diffraction grating 40 includes periodically grooved portions, and the groove portion in each period U includes: a groove group sequentially arranged, and each groove group includes a groove portion
- the number of the groove portions in the same groove group is the same, and the shape of the groove portion in the different groove groups is different.
- the groove portion in each period U includes three groove groups Q1, Q2, and Q3 arranged in order, each groove group includes one groove portion, and different grooves
- the shape of the grooved portion in the group is different.
- the shape of the groove portion is determined by d and ⁇ of the groove portion.
- ⁇ of all groove portions is the same, that is, all the groove faces are parallel.
- the groove width of the groove portion in the groove group Q1 is d1
- the groove width of the groove portion in the groove group Q2 is d2
- the groove groove of the groove portion in the groove group Q3 The width is d3, and d1, d2, and d3 are all different.
- the three sub-groove surfaces can be blazed to enhance the wavelength of the emitted light.
- the groove width can be adjusted such that the three sub-groove faces can respectively emit a band of three primary color lights (for example, red, green, and blue bands).
- the light correcting portion 113 including such a diffraction grating 40 may be disposed in the light emitting direction of the color film, and may be disposed between the color film 117 and the second substrate 112, for example, with reference to FIG.
- the groove portion in each period U includes two groove groups Q1 and Q2 arranged in order, and the groove group Q1 includes two groove portions of the same shape, and the groove group Q2
- the two groove portions having the same shape are included, and the groove portions in the groove group Q1 are different from the groove portions in the groove group Q2.
- the groove width of the groove portion in the groove group Q1 is d1
- the groove width of the groove portion in the groove group Q2 is d2
- d1 and d2 are different.
- the two sub-groove surfaces can be blazed to enhance the wavelength of the exit.
- the groove width can be adjusted such that the two sub-groove faces can respectively emit a band of two color lights (for example, a band of blue light and yellow light).
- the light correcting portion 113 including such a diffraction grating 40 can be disposed at a position before the light passes through the color film, and can be disposed on the first substrate 111 with reference to FIG.
- the white light emitted by a common backlight module is a mixed light of blue light and yellow light, and the diffraction grating 40 can be used to separately input blue light and yellow light.
- the lines are shining out so that the display characteristics of the display panel are not excessively affected.
- the first substrate 111 can also serve as a substrate of a COA (Color-filter on Array) substrate, and the second substrate 112 serves as a substrate of the package substrate;
- the substrate 111 serves as a substrate of the package substrate, and the second substrate 112 serves as a substrate of the COA substrate.
- the light correcting portion 113 can be added.
- the structure and shape of the light correcting portion 113 can be referred to the description of the conventional liquid crystal display panel in the first implementation manner, and details are not described herein.
- the self-luminous display panel is exemplified by an OLED (Organic Light-Emitting Diode) display panel.
- OLED Organic Light-Emitting Diode
- the display panel 11 (OLED display panel) includes: a first substrate 111 and a second substrate 112, and a plurality of OLED devices between the first substrate 111 and the second substrate 112, each The OLED device is the smallest display unit (which may be referred to as a pixel or sub-pixel) in the display panel.
- a light correcting portion 113 may be added to the OLED display panel. Since the OLED device in the OLED display panel is a light-emitting component, the light correcting portion 113 should be disposed on the light-emitting side of the OLED device so that the light emitted from the OLED device can be corrected to the vertical light by the light correcting portion 113.
- the light correcting portion 113 is disposed between the OLED device and the second substrate 112, that is, in the incell mode, so that the light correcting portion can be protected. Further, for example, the light correcting portion 113 is located on the inner side surface (the lower surface in the drawing) of the second substrate 112, and is in contact with the inner side surface of the second substrate 112.
- the passive display panel itself cannot emit light, and it is necessary to rely on the light emitted by the backlight module to realize the display.
- a light correction unit is added to the existing passive display panel to correct the light incident on the passive display panel to the vertical light, and is emitted by the passive display panel.
- a new idea is provided for how to make the passive display panel emit vertical light. That is, without changing the structure of the original passive display panel, a light correction portion is added to the original backlight module, so that the backlight module can emit vertical light, and the influence of the passive display panel on the light transmission direction is ignored. Allows vertical light to exit from the passive display panel.
- the embodiment provides a display device including a display panel 11, a liquid crystal lens 12, and a backlight module 13.
- the display panel 11 is a passive display panel.
- it may be a liquid crystal display panel.
- the display panel may be a display panel in the related art, and may of course be the display panel mentioned in the second embodiment, so that the display panel can function as a secondary correction.
- liquid crystal lens 12 For the liquid crystal lens 12, reference may be made to the description in the first embodiment, and no further details are provided herein.
- the backlight module 13 includes a light source and a light correcting portion located in a light emitting direction of the light source, and the light correcting portion is configured to correct the incident light to the outgoing light perpendicular to the panel surface of the display panel.
- the ray correcting section refer to the description in the second embodiment, and no further details are provided herein.
- the backlight module 13 can be a direct type, and the direct type backlight module includes a light source, a diffusion plate, and an optical film group located in a light emitting direction of the diffusion plate.
- the light correcting portion may be disposed between the diffusing plate and the optical film group, or may be disposed in the light emitting direction of the optical film group.
- the backlight module 13 can also be a side-in type.
- the side-lit backlight module further includes a light guide plate 131.
- the light source 132 is located at a side of the light guide plate 131, and the light correcting portion 113 is located at the light guide plate. 131 in the direction of light.
- the light source 132 may be a monochromatic light source, for example, may be a blue chip, and the blue light may enter the light guide plate 131.
- all of the groove portions of the diffraction grating in the light correcting portion 113 have the same shape for emitting the blue light band, and it is of course preferable to allow the blue light to be emitted perpendicularly to the groove surface of the diffraction grating.
- the light guide plate 131 has a light extraction groove on the surface facing the light correcting portion 113.
- the light emitted by the light source 132 satisfies the total reflection condition
- the light emitted by the light source 132 can be totally reflected in the light guide plate 131.
- light having a specific incident angle ⁇ among the total reflection rays can be emitted from the light extraction groove and enter the light correction portion 113.
- the specific incident angle ⁇ is set according to actual needs. For example, the angle can be calculated according to optical theory to ensure that light can be incident perpendicularly to the surface of the diffraction grating sub-groove. This makes it possible to make a selection before the light enters the light correcting portion 113, and it is possible to further ensure the verticality when the light is emitted from the light correcting portion 113.
- the edge-lit backlight module may further include: an optical film group (not shown) located in the light-emitting direction of the light guide plate 131, and the like.
- the light correcting portion 113 may be disposed between the light guide plate and the optical film group, or may be disposed in the light emitting direction of the optical film group.
- the structure in which the light guide plate 131 and the light correcting portion 113 are combined may be provided inside the display panel.
- the light source needs to be disposed on the side surface of the light guide plate 131.
- the display device provided by the embodiment of the present disclosure adds a light correcting portion to the backlight module, so that the backlight module can emit vertical light, and the vertical light passes through the display panel and is still vertical light, thereby implementing a curved surface through the liquid crystal lens. The effect displayed.
- the display device may be any product having a display function, such as a television, a notebook computer, a digital photo frame, a mobile phone, a tablet computer, a navigator, or the like, or may be a component having a display function. Such as a display, etc.
Abstract
Description
Claims (15)
- 一种显示装置,包括:平面的显示面板;以及液晶透镜,所述液晶透镜位于所述显示面板的出光方向上,所述液晶透镜用于将所述显示面板发出的光线向中心面的方向会聚,所述中心面垂直于所述显示面板、且通过所述显示面板的竖中线。
- 根据权利要求1所述的显示装置,其中,所述液晶透镜包括:相对设置的第一电极和第二电极,其中,所述第一电极包括多个平行排列的条状第一子电极,每个所述第一子电极沿所述显示面板的竖中线方向延伸;以及液晶层,所述液晶层设置于所述第一电极与所述第二电极之间。
- 根据权利要求2所述的显示装置,其中,所述多个第一子电极包括位于中间位置的中间第一子电极,在所述中间第一子电极的同一侧的所述第一子电极的宽度在远离所述中间第一子电极的方向上逐渐减小。
- 根据权利要求2或3所述的显示装置,其中,所述第一电极还包括:至少一个第二子电极,所述第二子电极沿所述显示面板的竖中线方向延伸;其中,每个所述第一子电极配置为施加第一极性的电压;所述第二电极配置为施加第二极性的电压,所述第一极性相反于所述第二极性。
- 根据权利要求4所述的显示装置,其中,所述至少一个第二子电极包括多个所述第二子电极,且至少一个所述第一子电极在所述平面显示面板的板面上的垂直投影位于多个所述第二子电极中的任意两个在所处平面显示面板的所述板面上的垂直投影之间。
- 根据权利要求4或5所述的显示装置,其中,所述第二子电极的宽度小于与其相邻的所述第一子电极的宽度。
- 根据权利要求2至6中任一项所述的显示装置,其中,所述第二电极为面电极。
- 根据权利要求1所述的显示装置,其中,所述液晶透镜包括:相对设置的第一电极和第二电极,其中,所述第一电极包括呈阵列排布的多个第一子电极;液晶层,所述液晶层设置于所述第一电极与所述第二电极之间。
- 根据权利要求1所述的显示装置,其中,所述显示面板包括:相对且平行设置的第一衬底和第二衬底,其中,所述第二衬底相对于所述第一衬底更靠近所述液晶透镜;光线校正部,所述光线校正部由所述第一衬底或所述第二衬底承载,所述光线校正部配置为将入射光校正为垂直于所述显示面板板面的出射光。
- 根据权利要求1所述的显示装置,其中,所述显示面板为被动式显示面板,所述显示装置还包括:背光模组;所述背光模组包括:光源,以及位于光源出光方向上的光线校正部,所述光线校正部用于将入射光校正为垂直于所述显示面板板面的出射光。
- 根据权利要求10所述的显示装置,其中,所述背光模组还包括:导光板,所述光源位于所述导光板的侧面,且所述光线校正部位于所述导光板的出光方向上,所述导光板在面对所述光线校正部的表面上具有取光槽;所述光源发出的光线一部分在所述导光板内全反射,另一部分从所述取光槽射出,并进入所述光线校正部中。
- 根据权利要求9至11任一项所述的显示装置,其中,所述光线校正部包括:衍射光栅,所述衍射光栅具有光栅面和槽面,所述槽面包含多个子槽面,且各个所述子槽面相对于所述平面显示面板倾斜设置,其中所述光栅面为光入射面,所述槽面为光出射面;第一介质层,所述第一介质层位于所述衍射光栅的槽面上,从所述衍射光栅出射的光线经所述第一介质层的光出射面折射,成为垂直于所述显示面板板面的出射光。
- 根据权利要求12所述的显示装置,其中,所述光线校正部还包括:第二介质层,所述第二介质层位于所述第一介质层的光出射面上,且所述第二介质层的光出射面平行于所述显示面板板面。
- 根据权利要求8至10任一项所述的显示装置,其中,所述光线校正部包括:衍射光栅,所述衍射光栅具有光栅面和槽面,所述槽面包含多个子槽面,且所述子槽面平行于所述显示面板板面,其中所述光栅面为光入射面,所述 槽面为光出射面。
- 根据权利要求11至14所述的显示装置,其中,所述衍射光栅包括多个刻槽部,成多个周期排列,每个周期内的刻槽部包括排列成多个刻槽组,各个所述刻槽组包含的刻槽部的个数相同,且同一刻槽组内刻槽部的形状相同,不同刻槽组内刻槽部的形状不同。
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CN105652511B (zh) | 2016-04-11 | 2019-06-07 | 京东方科技集团股份有限公司 | 一种显示装置 |
CN106054289B (zh) * | 2016-05-27 | 2019-01-25 | 京东方科技集团股份有限公司 | 一种显示面板、显示装置 |
CN108153031A (zh) * | 2017-12-07 | 2018-06-12 | 深圳市华星光电技术有限公司 | 一种显示面板及显示器 |
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