A 3D display screen

Abstract

The application discloses a 3D display screen adopting a novel stacking display principle. The technical scheme comprises the following steps: the 3D display screen is stacked by a plurality of display pieces and is bonded by glue in the middle, each display piece is formed by horizontally and vertically arranging a plurality of pixels on a substrate, the pixel is formed by stacking a sub-pixel and a light adjusting film, the sub-pixel comprises one, two, four or eight; when the sub-pixel is one: the sub-pixel is stacked on the light adjusting film; when the sub-pixel is two: the sub-pixel is stacked on the light adjusting film, and the sub-pixel is divided from the middle to form two parts which are symmetrical to left and right or front and back; when the sub-pixel is four: the sub-pixel is stacked on the light adjusting film, and the sub-pixel is divided to form four parts which are symmetrical to front, back, left and right.

Description

Technical Field

[0001] This invention belongs to the field of display technology, and in particular relates to a 3D display screen. Background Technology

[0002] To date, most 3D display technologies have focused on receiving different images from the left and right eyes to simulate a 3D effect in the human brain. In principle, achieving 3D display effects can be categorized as follows:

[0003] 1.1 Spectrophotometry

[0004] Two sets of images / videos can be taken of the same object from two different locations. A certain property of light can be selected to assign a value to the two sets of images / videos (i.e., x=A or B). Then, the two sets of images / videos with different values ​​can be sent to the left and right eyes respectively. The difference in images creates a 3D sensation in the human brain.

[0005] The properties of light include color / wavelength, direction, and lumens, as shown in the following ways:

[0006] (1) Using the color / wavelength of light - color difference 3D display (Anaglyphic 3D)

[0007] Two sets of images / videos are assigned different colors (e.g., x = "red" or "blue"), and red / blue (or red / green, red / cyan) images are formed through the principle of complementary colors. When used with red / blue (red / green, red / cyan) color filter 3D glasses, different images are formed in the left and right eyes respectively, thereby realizing 3D simulation display.

[0008] (2) Polarization 3D display using the direction of light

[0009] By assigning different polarization directions (e.g., x = "horizontal" or "vertical") to two sets of images / videos, the images are divided into two groups of images, one vertically polarized and one horizontally polarized, using a polarizer. With the use of polarized glasses, different images are formed for the left and right eyes, thus achieving 3D simulation display.

[0010] 1.2 Partial Graph Method

[0011] Two sets of images / videos can be taken of the same object from two different locations. The two sets of images / videos can be sent to the left and right eyes simultaneously or at different times, and the difference in the images can create a 3D sensation in the human brain.

[0012] (1) The left and right eyes do not receive simultaneously -- Active Shutter 3D display

[0013] 3D TVs display images in an alternating pattern of odd and even frames. At the same time, an infrared signal transmitter synchronously controls the opening and closing of the left and right lenses of shutter-type 3D glasses, so that the left and right eyes can see the corresponding images at the correct time, thereby achieving 3D simulation display.

[0014] (2) Simultaneous reception by both eyes -- there are many ways to achieve this.

[0015] The principle of 3D imaging that receives images from both eyes simultaneously is similar to that that that that receives images from the left and right eyes separately. The difference lies in the way the images are sent to the left and right eyes.

[0016] A 3D helmet-style display screen is placed directly in front of each of the left and right eyes, and simultaneously plays the corresponding images / videos for the left and right eyes, thereby achieving 3D simulation display.

[0017] The prism array method combines two sets of high-refresh-rate display panels at different angles with a reflective prism array, allowing the image to be reflected to the left and right eyes in an alternating pattern of odd and even frames, thus achieving a 3D simulated display. Similar glasses-free 3D display technologies all have very high requirements for positioning.

[0018] Other solutions will not be listed here. Basically, each solution has its own characteristics, but the core principles are similar.

[0019] 1.3 True 3D Technology – With Spatial Depth

[0020] Holographic display technology achieves "true 3D" by recording and reproducing all the information of light. First, during the shooting process, the phase and amplitude of the object's light wave at various points are converted into spatially varying intensities using the interference principle of lasers. This allows the contrast and spacing between interference fringes to record all the information of the object's light wave. Then, during the imaging process, the diffraction principle of coherent lasers is used to reproduce the object's light wave information, providing the original image (also known as the initial image) and the conjugate image. The reproduced image has a strong sense of depth and a realistic visual effect, but it requires a recording medium (holographic plate) to achieve imaging. Currently, recording media include gases, liquids / colloids, and solids, such as water vapor, fog (i.e., air with a sufficient concentration of suspended particles), a sufficiently thick photosensitive emulsion plate, and a high-speed rotating mirror. With the rapid development of technology, holographic display technology has begun to evolve from real images to virtual images. Its drawbacks still include the need for laser facilities and high shooting thresholds, hindering its widespread civilian application. Summary of the Invention

[0021] The technical problem to be solved by the present invention is to provide a 3D display screen that adopts a novel stacked display principle.

[0022] To solve the above problems, the technical solution adopted by the present invention includes: the 3D display screen is formed by stacking a number of display sheets and bonding them together with glue, each display sheet is formed by arranging a number of pixels horizontally and vertically on a substrate, and the pixels are formed by superimposing sub-pixels and dimming films.

[0023] The subpixels include 1, 2, 4, or 8; when there is 1 subpixel: the subpixel is superimposed on the dimming film; when there are 2 subpixels: the subpixel is superimposed on the dimming film, and the subpixel is divided in the middle to form two symmetrical parts on the left and right or front and back; when there are 4 subpixels: the subpixels are superimposed on the dimming film, and the subpixel is divided to form four symmetrical parts on the left and right; when there are 8 subpixels: the subpixels are superimposed on the top and bottom of the dimming film, and the dimming film divides the subpixels into eight symmetrical parts on the top, bottom, front, back, left and right.

[0024] Each subpixel includes three color units: red, green, and blue, which can emit different light intensities simultaneously. Each color unit is arranged side by side or superimposed.

[0025] Each color unit includes an anode, a conductive layer, a hole transport layer, a QD layer, an electron transport layer, and a cathode arranged in sequence. The QD layer is used as the light-emitting layer, and red, green, and blue light are emitted in the form of electroluminescence.

[0026] Each color unit includes an anode, a conductive layer, a hole transport layer, a light-emitting layer, an electron transport layer, a color modulation layer, and a cathode arranged sequentially. The light-emitting layer uses a light-emitting film or QD material and emits red, green, and blue light in the form of electroluminescence. The color modulation layer uses QD material and is excited by the light emitted by the light-emitting layer, emitting red, green, and blue light in the form of photoluminescence. The wavelength of the light emitted by the light-emitting layer is shorter than the wavelength of the light emitted by the color modulation layer.

[0027] The dimming film is implemented using smart dimming glass or an electrochromic device; the smart dimming glass includes an anode, a polarizer, a conductive layer, a liquid crystal layer, a conductive layer, a polarizer, and a cathode arranged in sequence; the electrochromic device includes an anode, a conductive layer, an electrochromic layer, an electrolyte layer, an ion storage layer, a conductive layer, and a cathode arranged in sequence.

[0028] The wavelength of the light-emitting layer is 0–700 nm.

[0029] The display panels are stacked in a pyramid shape.

[0030] Each of the aforementioned display panels is displayed continuously in rows or columns, meaning that at any given time, all of the aforementioned display panels are displayed in a row or column.

[0031] The dimming film can be used in three modes: completely black, transparent, or semi-transparent.

[0032] The advantages of the 3D display screen of this invention are as follows: It adopts a novel stacked display principle and implementation scheme to solve the thickness / depth of field problem of true 3D display technology. This 3D display screen has no requirements on the number of viewers, angle, distance, etc. Moreover, it is the most suitable small-scale home 3D display screen for commercial use to date.

[0033] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the dimming film of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of the color unit of the present invention;

[0036] Figure 3 This is a schematic diagram of the sub-pixel structure of the present invention;

[0037] Figure 4 This is a schematic diagram of the pixel structure of the present invention;

[0038] Figure 5 This is a schematic diagram of the structure of the display panel of the present invention;

[0039] Figure 6 This is a schematic diagram of the structure of the display screen of the present invention;

[0040] Figure 7 This is a schematic diagram of the structure of the display screen with window effect according to the present invention;

[0041] Figure 8 This is a schematic diagram showing that all display panels in the display screen of the present invention are scrolled by row or column;

[0042] Figure 9 This is a schematic diagram illustrating the 3D display effect of a non-transparent object when the dimming film of this invention is completely black and viewed from one side.

[0043] Figure 10 This is a schematic diagram of a three-dimensional display screen simulating a transparent or semi-transparent medium when the dimming film of the present invention is transparent or semi-transparent, viewed from one side.

[0044] Figure 11 This is a schematic diagram illustrating the 3D display effect of a non-transparent object when the dimming film of this invention is completely black, allowing for viewing from all angles.

[0045] Figure 12 This is a schematic diagram of a 3D display simulating a transparent or semi-transparent medium, when the dimming film of this invention is transparent or semi-transparent, allowing for all-around viewing. Detailed Implementation

[0046] Reference Figure 1-12As shown, the 3D display screen of the present invention is composed of a plurality of display panels stacked in a pyramid shape and bonded together with adhesive (see...). Figure 6 , 7 This means that the display panels located at the rear have a larger area, and the area of ​​the display panels gradually decreases towards the viewer. Each display panel is formed by multiple pixels arranged horizontally and vertically on a substrate (usually glass) (see...). Figure 5 The pixel is composed of sub-pixels and a dimming film (see...). Figure 4 The pixels are structural units within this display screen that can simulate the realistic light emission patterns of real objects. Pixels can be square, circular, or various other shapes. For viewers, the 3D display effect should not have a sense of boundaries; therefore, eliminating the corner problems caused by the screen's thickness is crucial. With the above structure, when a viewer is in the designated area (viewing area), the display will produce a window effect, meaning the viewer feels like they are looking out into the 3D world through a window. For displays with a window effect, a symmetrical structure is optimal, allowing the viewing area to be centered. A symmetrical structure is not necessarily required for a vertical structure; the optimal viewing angle should be calculated based on the intended use, such as a mobile phone, computer, home television, or cinema display. For example, when using a desktop computer, the viewer is generally slightly below the center of the screen, so the upper angle should ideally be greater than the lower angle. When using a home television, viewers are generally sitting or lying down, with the best experience being at eye level; occasionally, some people stand to watch, so the lower angle should ideally be greater than the upper angle. When watching in a cinema, the viewers in the front row are much below the center of the screen, so the upper angle should be much greater than the lower angle.

[0047] Preferably, the sub-pixel is 1, 2, 4, or 8. When there is 1 sub-pixel: the sub-pixel is superimposed on the dimming film (see...). Figure 4 a) When there are two: the sub-pixels are superimposed on the dimming film, and the sub-pixels are divided in the middle to form two symmetrical parts (see...). Figure 4 b); When there are 4: the sub-pixels are superimposed on the dimming film, and the sub-pixels are divided into four symmetrical parts (see...). Figure 4 c); When there are 8: the sub-pixels are superimposed on the upper and lower surfaces of the dimming film, and the dimming film divides the sub-pixels into eight symmetrical parts (see c). Figure 4 d). For stereoscopic displays viewed from one side (see...) Figure 9 , 10 At this point, the display panels are stacked in a pyramid shape, and the pixel design can employ 1, 2, 4, or 8 sub-pixel structural features. Figure 4 Any one of the following, where Figure 4The preparation process for type a is the simplest and lowest cost. Single-sided stereoscopic displays can be used in mobile phones, computers, home televisions, cinemas, etc. For omnidirectional stereoscopic displays (see...),... Figure 11 , 12 At this point, the stacking shape of the display panels is not limited (such as pyramid, cuboid, cube, sphere, ellipsoid, cone, cylinder, or irregular shape, etc.), and the pixel design should adopt 8 sub-pixel structural features. Figure 4 d) Omnidirectional 3D displays are suitable for industrial, educational, and commercial applications, allowing viewers to enjoy a panoramic view from any angle and direction. These displays can be used for product design and demonstrations, partially replacing 3D printers and saving time and costs while reducing consumption and pollution. They are particularly valuable for displaying extremely large or small products, allowing for proportional scaling down or magnification, as well as highlighting detailed features. Therefore, they possess broad industrial value.

[0048] Preferably, the sub-pixel is a red, green, or blue color unit capable of emitting different light intensities simultaneously. Each color unit is arranged side by side (see...). Figure 3 a, b) or overlay settings (see a, b) or superimposed settings (see Figure 3 c) The order in which they are set is not restricted.

[0049] Preferably, each color unit includes an anode, a conductive layer, a hole transport layer, a QD layer, an electron transport layer, and a cathode arranged sequentially (see...). Figure 2 a) A QD layer is used as the light-emitting layer to adjust the light intensity and release red, green, and blue light in the form of electroluminescence. The QD layer, or "quantum dot layer," not only possesses electroluminescent properties, but the fabrication technology for the three primary color quantum dots (red, blue, and green) is also very mature, meeting the basic requirements and conditions for true 3D displays. The color units require that the anode and cathode be opaque, while all other materials used are transparent.

[0050] Preferably, each color unit includes an anode, a conductive layer, a hole transport layer, a light-emitting layer, an electron transport layer, a color modulation layer, and a cathode arranged sequentially (see...). Figure 2 (b) The light-emitting layer uses a light-emitting film or QD material and emits red, green, and blue light in the form of electroluminescence. The color modulation layer uses QD material and is excited by the light emitted by the light-emitting layer, emitting red, green, and blue light in the form of photoluminescence. The wavelength of the light emitted by the light-emitting layer is shorter than the wavelength of the light emitted by the color modulation layer. The light-emitting film refers to an LED optoelectronic display film, which is an innovative display product that combines LED (light-emitting diode) technology with thin-film materials. The ideal wavelength emitted by the light-emitting layer is 0–700 nm. Because shorter wavelengths have higher energy and longer wavelengths have lower energy, shorter wavelengths can better excite longer wavelengths.

[0051] Preferably, the dimming film is implemented using smart dimming glass or an electrochromic device. The smart dimming glass includes an anode, a polarizer, a conductive layer, a liquid crystal layer, another conductive layer, a polarizer, and a cathode arranged sequentially (see...). Figure 1 a). The electrochromic device comprises, in sequence, an anode, a conductive layer, an electrochromic layer, an electrolyte layer, an ion storage layer, a conductive layer, and a cathode (see a). Figure 1 (b) The dimming film requires that the anode and cathode be opaque, while all other materials used are transparent. The above-mentioned use of smart dimming glass or electrochromic devices has the following advantages: 1. It can achieve a transition from opaque to transparent, or from transparent to opaque, when voltage is applied; 2. Different degrees of transparency can be achieved by adjusting the voltage; 3. The color is black when opaque; 4. Short response time, which can be matched with the response time of the display screen; 5. Long cycle life and stable chemical properties; 6. It does not absorb light, nor does it release light in response to stress.

[0052] Preferably, each of the aforementioned display panels is displayed continuously in rows or columns, meaning that at the same time (i.e., the image refresh time, frame rate), all the aforementioned display panels are displayed in one row or one column (see...). Figure 8 ). Specifically, as follows Figure 8 In option a: when t = t0, the i-th row of all display panels is displayed; when t = t0 + 1, the (i + 1)-th row of all display panels is displayed; or as follows: Figure 8 In b: When t=t0, the j-th column of all display tiles is displayed; when t=t0+1, the (j+1)-th column of all display tiles is displayed.

[0053] Preferably, the dimming film can be used in three modes: completely black, transparent, or semi-transparent. When the dimming film is completely black, it blocks light from passing through all the pixels below, thus simulating the stereoscopic display effect of a non-transparent object. Figure 9 As shown, viewers 1, 2, and 3 can see different images from different angles. When the dimming film is transparent or translucent, it can simulate transparent or translucent media such as sunlight, air, water, and glass. Figure 10 As shown, viewers 1, 2, and 3 can see the purple square through different colors from different angles.

[0054] In summary, this is not intended to limit the present invention in any way. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A 3D display screen, characterized in that: The 3D display screen is composed of several display panels stacked together and glued in the middle. Each display panel is formed by several pixels arranged horizontally and vertically on a substrate. The pixels are formed by superimposing subpixels and a dimming film. The subpixels include 1, 2, 4 or 8. When there is 1 subpixel: the subpixel is superimposed on the dimming film. When there are 2 subpixels: the subpixel is superimposed on the dimming film and is divided in the middle to form two symmetrical parts on the left and right or front and back. When there are 4 subpixels: the subpixels are superimposed on the dimming film and are divided into four symmetrical parts on the left and right. When there are 8 subpixels: the subpixels are superimposed on the top and bottom of the dimming film, and the dimming film divides the subpixels into eight symmetrical parts on the top, bottom, front, back and left.

2. The 3D display screen according to claim 1, characterized in that: Each subpixel includes three color units: red, green, and blue, which can emit different light intensities simultaneously. Each color unit is arranged side by side or superimposed.

3. The 3D display screen according to claim 2, characterized in that: Each color unit includes an anode, a conductive layer, a hole transport layer, a QD layer, an electron transport layer, and a cathode arranged in sequence. The QD layer is used as the light-emitting layer, and red, green, and blue light are emitted in the form of electroluminescence.

4. The 3D display screen according to claim 2, characterized in that: Each color unit includes an anode, a conductive layer, a hole transport layer, a light-emitting layer, an electron transport layer, a color modulation layer, and a cathode arranged sequentially. The light-emitting layer uses a light-emitting film or QD material and emits red, green, and blue light in the form of electroluminescence. The color modulation layer uses QD material and is excited by the light emitted by the light-emitting layer, emitting red, green, and blue light in the form of photoluminescence. The wavelength of the light emitted by the light-emitting layer is shorter than the wavelength of the light emitted by the color modulation layer.

5. The 3D display screen according to claim 1, characterized in that: The dimming film is implemented using smart dimming glass or an electrochromic device; the smart dimming glass includes an anode, a polarizer, a conductive layer, a liquid crystal layer, a conductive layer, a polarizer, and a cathode arranged in sequence; the electrochromic device includes an anode, a conductive layer, an electrochromic layer, an electrolyte layer, an ion storage layer, a conductive layer, and a cathode arranged in sequence.

6. The 3D display screen according to claim 4, characterized in that: The wavelength of the light-emitting layer is 0–700 nm.

7. The 3D display screen according to claim 1, characterized in that: The display panels are stacked in a pyramid shape.

8. The 3D display screen according to any one of claims 1-7, characterized in that: Each of the aforementioned display panels is displayed continuously in rows or columns, meaning that at any given time, all of the aforementioned display panels are displayed in a row or column.

9. The 3D display screen according to any one of claims 1-7, characterized in that: The dimming film can be used in three modes: completely black, transparent, or semi-transparent.

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