CN105511148A - Method for improving luminance of slit type glasses-free 3D display - Google Patents
Method for improving luminance of slit type glasses-free 3D display Download PDFInfo
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- CN105511148A CN105511148A CN201510894635.5A CN201510894635A CN105511148A CN 105511148 A CN105511148 A CN 105511148A CN 201510894635 A CN201510894635 A CN 201510894635A CN 105511148 A CN105511148 A CN 105511148A
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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
- G02F1/133553—Reflecting elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a method for improving the luminance of a slit type glasses-free 3D display, belongs to the technical field of stereo display and aims to solve the problems that the cost can be increased remarkably and the service life can be shortened when the luminance of the slit type glasses-free 3D display is improved by improving the luminance of a backlight source. The method comprises the following steps: a chromium plate is arranged on the front end surface of a light transmitting substrate, a light reflection layer of the chromium plate faces the light transmitting substrate, and a plurality of light transmitting bars are carved in the chromium plate uniformly to form a slit grating; a polarizer at the rear end is separated from TFT (thin film transistor) glass, an assembly formed by the slit grating and the light transmitting substrate is arranged at the rear end of the TFT glass, light rays emitted by a backlight assembly reach the slit grating through the light transmitting substrate, part of the light rays is emitted through the light transmitting bars of the slit grating, the other part of the light rays are reflected back to the backlight assembly after passing light blocking bars of the slit grating, reflected by a reflector plate in the backlight assembly and are emitted again out of the backlight assembly, and the outgoing luminance of the display is improved with adoption of the cyclic light reflection process.
Description
Technical field
The present invention relates to a kind of technology promoting display brightness, belong to stereo display technique field.
Background technology
Vision is the primary information resource of the outside objective event of human perception, by display device rediscover, clear, intuitively the world be the target that people pursue always, the development of display technique has showed this process vividly: from static state to dynamically, from black and white to color, from SD to high definition, from plane to solid, and the holography in future.
Through development for many years, slit bore hole 3D display technique has become a kind of technology more ripe at present, its simplicity of design, handling ease, so with low cost, and dark liking by market.But what utilize due to slit grating is the principle of disparity barrier, inevitablely significantly reduce display brightness, generally all reduce by more than 50%, therefore, be not difficult to find that the general brightness of slit bore hole 3D display brightness is lower, cause viewing discomfort, lack of defination.This is its inevitable defect.On traditional market, the luminance brightness generally by promoting backlight promotes display brightness, must increase considerably cost like this, reduces serviceable life.
Summary of the invention
The present invention seeks to adopt the luminance brightness promoting back light can increase considerably cost in the mode promoting slit grating 3D display brightness, reduce the problem in serviceable life to solve, providing a kind of method promoting slit bore hole 3D display brightness.
The method of lifting slit bore hole 3D display brightness of the present invention comprises two technical schemes:
First technical scheme: the method promoting slit bore hole 3D display brightness, described 3D display comprises display screen and backlight assembly, and backlight assembly is arranged on the rear end of display screen, and provides back light for display screen; Display screen sets gradually front end polaroid, C/F glass, TFT glass and rear end polaroid to the back-end from front end; The method is:
Arrange chromium plate in the front-end surface of transparent substrates, the reflector layer of chromium plate is towards transparent substrates, and the light-absorption layer of chromium plate deviates from transparent substrates; Chromium plate evenly carves multiple light transmission strip, and the part of chromium plate remainder is shading strip, and multiple shading strip and light transmission strip form slit grating;
Rear end polaroid is separated from TFT glass, then the assembly that slit grating and transparent substrates are formed is arranged on TFT glass rear end, slit grating adopts full laminating type to be arranged on the rear end surface of TFT glass, finally rear end polaroid is fitted in the rear end surface of transparent substrates;
The light of backlight assembly outgoing arrives slit grating by transparent substrates, part light is through the light transmission strip outgoing of slit grating, another part light returns backlight assembly through the shield bars back reflection of slit grating, after the reflectors reflects in backlight assembly, again send from backlight assembly, adopt so circulation light reflection process repeatedly to promote the outgoing brightness of display screen.
Second technical scheme: the method promoting slit bore hole 3D display brightness, described 3D display comprises display screen and backlight assembly, and backlight assembly is arranged on the rear end of display screen, and provides back light for display screen; The method is:
The front end polaroid of display screen, C/F glass and TFT glass are set gradually to the back-end from front end, then on the rear end face of TFT glass, layers of chrome is applied, this layers of chrome has light-absorption layer and reflector layer, the light-absorption layer of layers of chrome is towards TFT glass, the reflector layer of layers of chrome deviates from TFT glass, layers of chrome evenly carves multiple light transmission strip, and the part of layers of chrome remainder is shading strip, and multiple shading strip and light transmission strip form slit grating; Then the rear end polaroid of display screen is attached on the rear end surface of slit grating;
The light of backlight assembly outgoing arrives slit grating, part light is through the light transmission strip outgoing of slit grating, another part light returns backlight assembly through the shield bars back reflection of slit grating, after the reflectors reflects in backlight assembly, again send from backlight assembly, adopt so circulation light reflection process repeatedly to promote the outgoing brightness of display screen.
Advantage of the present invention:
1, the reflector layer of the chromium plate light back into backlight again that slit grating shield bars can be blocked, outgoing again after the reflex of backlight, namely substantially increases display screen outgoing brightness so repeatedly afterwards.Experiment records, and brightness can improve 50%.
2, the manufacture craft of chromium plate is very ripe, does mask plate purposes in TFT technique, therefore can direct volume production.
3, the minimum feature of chromium plate can reach 20 μm, and precision can reach ± and 0.2 μm, far above the machining precision of the photoetching film, and the shrinkability of chromium plate base material is more stable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the method promoting slit bore hole 3D display brightness described in embodiment one;
Fig. 2 is the schematic diagram of the method promoting slit bore hole 3D display brightness described in embodiment two;
Fig. 3 is a kind of specific embodiment of slit grating.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 and Fig. 3, the method of slit bore hole 3D display brightness is promoted described in present embodiment, described 3D display comprises display screen 1 and backlight assembly 2, backlight assembly 2 is arranged on the rear end of display screen 1, and provides back light for display screen 1; Display screen 1 sets gradually front end polaroid 1-1, C/F glass 1-2, TFT glass 1-3 and rear end polaroid 1-4 to the back-end from front end; The method is:
Arrange chromium plate in the front-end surface of transparent substrates 4, the reflector layer of chromium plate is towards transparent substrates 4, and the light-absorption layer of chromium plate deviates from transparent substrates 4; Chromium plate evenly carves multiple light transmission strip, and the part of chromium plate remainder is shading strip, and multiple shading strip and light transmission strip form slit grating 3;
Rear end polaroid 1-4 is separated from TFT glass 1-3, then the assembly that slit grating 3 and transparent substrates 4 are formed is arranged on TFT glass 1-3 rear end, slit grating 3 adopts full laminating type to be arranged on the rear end surface of TFT glass 1-3, finally rear end polaroid 1-4 is fitted in the rear end surface of transparent substrates 4;
The light of backlight assembly 2 outgoing arrives slit grating 3 by transparent substrates 4, part light is through the light transmission strip outgoing of slit grating 3, another part light returns backlight assembly 2 through the shield bars back reflection of slit grating 3, after the reflectors reflects in backlight assembly 2, again send from backlight assembly 2, adopt so circulation light reflection process repeatedly to promote the outgoing brightness of display screen 1.
Transparent substrates 4 selects PMMA resinous wood flitch, crystal slab or glass plate.
The mode that chromium plate evenly carves multiple light transmission strip is laser engraving or exposure etching.
Chromium plate described in present embodiment is one piece of one side chromium plating glass plate, and the manufacture craft of chromium plate is very ripe, does mask plate purposes in TFT technique, therefore can direct volume production.Chromium plate is double-layer structure: reflector layer and light-absorption layer, and wherein reflector layer is towards backlight assembly 2 direction, and light-absorption layer deviates from backlight assembly 2 direction.Chromium plate is by laser engraving or expose etching method according to specific figure (as Fig. 3), and engraving (or photoetching) goes out light transmission strip, the light tight bar that above light transmission strip and chromium plate are formed, namely as slit grating 3.
The base material of chromium plate is transparent substrates 4, and thickness is 0.3mm ~ 5mm.
The figure of slit grating 3 is not limited to light and dark nicking, can be any other figure.
Scheme according to the present embodiment provides a specific embodiment:
Step 1, choose a display screen ACX465AKM-7,5.85 cun, its pixel, apart from be 0.0675mm, realizes the bore hole 3D displaying scheme of 2 viewpoints, and the design point distance of grating is 0.1352mm, then the light transmission strip width of grating and shield bars width are 0.0676mm.
Step 2, remove the lower end polaroid 1-4 of display screen 1, clean TFT glass 1-3 surface.
Step 3, select thickness T=2.3mm quartz glass as transparent substrates 4, the chromium plate 3 of selection has two-layer: one side top layer plating chromium nitride (reflector layer) and chromium oxide (absorption layer), wherein reflector layer is near quartz glass.Go out the light transmission strip of 0.1352mm according to Etching shown in Fig. 3 with laser, precision is ± 0.0002mm.
Step 4, with optical cement, the chromium plate 3 in step 3 is fitted to the TFT glass 1-3 rear end face of the display screen 1 in step 2.After completing, entirety puts into backlight, has assembled 3D module.
By classic method, 2 viewpoint slit gratings can reduce the brightness of flat-panel screens 50%, and the present invention can realize luminance raising 50%, namely reduce 25% of flat-panel screens brightness.
Embodiment two: present embodiment is described below in conjunction with Fig. 2 and Fig. 3, the method of slit bore hole 3D display brightness is promoted described in present embodiment, described 3D display comprises display screen 1 and backlight assembly 2, backlight assembly 2 is arranged on the rear end of display screen 1, and provides back light for display screen 1; The method is:
Front end polaroid 1-1, C/F glass 1-2 of display screen 1 and TFT glass 1-3 is set gradually to the back-end from front end, then on the rear end face of TFT glass 1-3, layers of chrome is applied, this layers of chrome has light-absorption layer and reflector layer, the light-absorption layer of layers of chrome is towards TFT glass 1-3, the reflector layer of layers of chrome deviates from TFT glass 1-3, layers of chrome evenly carves multiple light transmission strip, and the part of layers of chrome remainder is shading strip, and multiple shading strip and light transmission strip form slit grating 3; Then the rear end polaroid 1-4 of display screen 1 is attached on the rear end surface of slit grating 3;
The light of backlight assembly 2 outgoing arrives slit grating 3, part light is through the light transmission strip outgoing of slit grating 3, another part light returns backlight assembly 2 through the shield bars back reflection of slit grating 3, after the reflectors reflects in backlight assembly 2, again send from backlight assembly 2, adopt so circulation light reflection process repeatedly to promote the outgoing brightness of display screen 1.
Transparent substrates 4 selects PMMA resinous wood flitch, crystal slab or glass plate.
The mode that layers of chrome evenly carves multiple light transmission strip is laser engraving or exposure etching.
The manufacture craft of the layers of chrome described in present embodiment is very ripe, can direct volume production.Layers of chrome is double-layer structure: reflector layer and light-absorption layer, and wherein reflector layer is towards backlight assembly 2 direction, and light-absorption layer deviates from backlight assembly 2 direction.Layers of chrome is by laser engraving or expose etching method according to specific figure (as Fig. 3), and engraving (or photoetching) goes out light transmission strip, the light tight bar that above light transmission strip and chromium plate are formed, namely as slit grating 3.
The figure of slit grating 3 is not limited to light and dark nicking, can be any other figure.
Present embodiment is not limited only to apply layers of chrome on the TFT glass 1-3 of display screen 1, carries out carving (photoetching) shaping, also can chromium plating on a large TFT glass, engraving (photoetching) shaping, then carry out follow-up cutting, binding operation.
Claims (6)
1. promote the method for slit bore hole 3D display brightness, described 3D display comprises display screen (1) and backlight assembly (2), backlight assembly (2) is arranged on the rear end of display screen (1), and provides back light for display screen (1); Display screen (1) sets gradually front end polaroid (1-1), C/F glass (1-2), TFT glass (1-3) and rear end polaroid (1-4) to the back-end from front end; It is characterized in that, the method is:
Arrange chromium plate in the front-end surface of transparent substrates (4), the reflector layer of chromium plate is towards transparent substrates (4), and the light-absorption layer of chromium plate deviates from transparent substrates (4); Chromium plate evenly carves multiple light transmission strip, and the part of chromium plate remainder is shading strip, and multiple shading strip and light transmission strip form slit grating (3);
Rear end polaroid (1-4) is separated from TFT glass (1-3), then the assembly that slit grating (3) and transparent substrates (4) are formed is arranged on TFT glass (1-3) rear end, slit grating (3) adopts full laminating type to be arranged on the rear end surface of TFT glass (1-3), finally rear end polaroid (1-4) is fitted in the rear end surface of transparent substrates (4);
The light of backlight assembly (2) outgoing arrives slit grating (3) by transparent substrates (4), part light is through the light transmission strip outgoing of slit grating (3), another part light returns backlight assembly (2) through the shield bars back reflection of slit grating (3), after the reflectors reflects in backlight assembly (2), again send from backlight assembly (2), adopt so circulation light reflection process repeatedly to promote the outgoing brightness of display screen (1).
2. promote the method for slit bore hole 3D display brightness according to claim 1, it is characterized in that, transparent substrates (4) selects PMMA resinous wood flitch, crystal slab or glass plate.
3. promote the method for slit bore hole 3D display brightness according to claim 1, it is characterized in that, the mode that chromium plate evenly carves multiple light transmission strip is laser engraving or exposure etching.
4. promote the method for slit bore hole 3D display brightness, described 3D display comprises display screen (1) and backlight assembly (2), backlight assembly (2) is arranged on the rear end of display screen (1), and provides back light for display screen (1); It is characterized in that, the method is:
The front end polaroid (1-1) of display screen (1), C/F glass (1-2) and TFT glass (1-3) are set gradually to the back-end from front end, then on the rear end face of TFT glass (1-3), layers of chrome is applied, this layers of chrome has light-absorption layer and reflector layer, the light-absorption layer of layers of chrome is towards TFT glass (1-3), the reflector layer of layers of chrome deviates from TFT glass (1-3), layers of chrome evenly carves multiple light transmission strip, the part of layers of chrome remainder is shading strip, and multiple shading strip and light transmission strip form slit grating (3); Then the rear end polaroid (1-4) of display screen (1) is attached on the rear end surface of slit grating (3);
The light of backlight assembly (2) outgoing arrives slit grating (3), part light is through the light transmission strip outgoing of slit grating (3), another part light returns backlight assembly (2) through the shield bars back reflection of slit grating (3), after the reflectors reflects in backlight assembly (2), again send from backlight assembly (2), adopt so circulation light reflection process repeatedly to promote the outgoing brightness of display screen (1).
5. promote the method for slit bore hole 3D display brightness according to claim 4, it is characterized in that, transparent substrates (4) selects PMMA resinous wood flitch, crystal slab or glass plate.
6. promote the method for slit bore hole 3D display brightness according to claim 4, it is characterized in that, the mode that layers of chrome evenly carves multiple light transmission strip is laser engraving or exposure etching.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106200093A (en) * | 2016-07-06 | 2016-12-07 | 武汉华星光电技术有限公司 | Display panels and preparation method thereof |
CN106468831A (en) * | 2016-09-28 | 2017-03-01 | 擎中科技(上海)有限公司 | A kind of bore hole 3D display device, visual barrier and preparation method thereof |
CN106597678A (en) * | 2017-01-16 | 2017-04-26 | 佛山市星耀光环境工程技术有限公司 | Naked-eye 3D three-dimensional displaying curtain wall |
CN106773086A (en) * | 2016-12-30 | 2017-05-31 | 武汉华星光电技术有限公司 | Stereoscopic display grating and preparation method thereof, 3 d display device |
CN106773217A (en) * | 2017-01-19 | 2017-05-31 | 宁波视睿迪光电有限公司 | 3 d display device and preparation method |
CN108594344A (en) * | 2018-05-02 | 2018-09-28 | 四川大学 | The slit grating design method of moir patterns is weakened in LED naked-eye 3D display |
CN114373854A (en) * | 2021-09-15 | 2022-04-19 | 友达光电股份有限公司 | Display device |
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CN106200093A (en) * | 2016-07-06 | 2016-12-07 | 武汉华星光电技术有限公司 | Display panels and preparation method thereof |
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CN114373854A (en) * | 2021-09-15 | 2022-04-19 | 友达光电股份有限公司 | Display device |
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CN114373854B (en) * | 2021-09-15 | 2023-07-04 | 友达光电股份有限公司 | Display device |
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Application publication date: 20160420 |