Patent Application
20150201184
1. FIELD OF THE INVENTION
The present disclosure relates to three dimensions (3D) display technology, and more particularly to the 3D display device incorporating an organic light emitting diode (OLED) display and the 3D display method.
2. Discussion of the Related Art
It is known that OLED display devices are characterized by self-illuminating attribute, and thus backlight sources are not needed. As such, the OLED display devices usually are thinner and lighter, and also, and the power consumption and the cost are low. In addition, the OLED display device also includes attributes such as high brightness, wide viewing angle, high contrastness, and flexibility, and thus attracts more and more peoples' attention.
OLED display devices include active matrix organic light emitting diode (AMOLED) and passive matrix organic light emitting diode (PMOLED). AMOLED display devices include attributes such as they can be large-scale integration, power saving, high resolution, and long life cycle, such that AMOLED has been paid a lot of attention while the consumers demand toward large-scale display panel has grown.
AMOLED display device includes a substrate, a thin film transistor (TFT) substrate, an OLED layer, and a cathode substrate layer. The TFTs operate as switches to control a current direction of each of the pixels. The OLED layer emits lights by carrier injection and recombination when being driven by an electric field. The principle is to adopt the indium tin oxide (ITO) transparent electrode and metallic electrode respectively to be the anode and the cathode. When being driven by a specific voltage, the electron and hole are respectively filled into the electron-and-hole transport layer via the anode and cathode. The electron and hole are respectively transferred to the light emitting layer via the electron-and-hole transport layer, and then encounter together to form the excitons such that the light emitting molecular is activated. The molecular emits lights after the radiation relaxation time. The radiation lights can be observed from one side of the ITO. In addition, the metallic electrode film also has the same function with the reflection layer.
3D display technology is the current trend of display field. Currently, 3D display technology is achieved by binocular disparity. That is, two parallax images, i.e., left and right parallax image, are shown on a two-dimensional display, and the left eye and right parallax image can only be respectively observed by users left and right eye by adopting certain technology.
Currently, 3D display technology mainly includes polarized 3D, shutter 3D, and color separation 3D display technologies. The polarized 3D display technology usually adopts space division methodology and thus half of the resolution is lost. As such, not only the 3D display performance is low, the viewing angle may be affected, which results in cross-talk. Shutter 3D display technology usually adopts time division methodology, which results in not only flashing images but also cross-talk. Color separation display technology adopts color complementary principle to filter most of colors, which results in great color distortion and reduced brightness. As such, the 3D display performance is also greatly reduced.
The object of the invention is to provide a 3D display device and a 3D display method such that the first image, i.e., the left parallax image, and the second image, i.e., the right parallax image are highly separated. In addition, the response time is short, the contrastness is high, and the viewing angle is large.
In one aspect, a 3D display device, comprising: a display unit and a glass, the display unit comprising a plurality of ultraviolet emission pixels and visible emission pixels, the glass at least includes a first lens and a second lens, and wherein the first lens is for converting the ultraviolet beams emitted from the ultraviolet emission pixels into visible light beams, and the second lens is for directly receiving the visible light beams emitted from the visible emission pixels.
In another aspect, a 3D display method using the above 3D display device comprising: controlling a plurality of ultraviolet emission pixels to emit ultraviolet beams to display a first image, and controlling a plurality of visible emission pixels to emit visible beams to display a second image; and converting the ultraviolet beams emitted from the ultraviolet emission pixels to the visible beams by a first lens, and directly receiving the visible beams emitted from the visible emission pixels by a second lens.
Preferably, the display unit is an OLED display.
Preferably, the first lens is a fluorescence lens.
Preferably, the visible emission pixels comprises a first visible emission subpixel, a second visible emission subpixel, and a third visible emission subpixel, and the first visible emission subpixel, a second visible emission subpixel, and a third visible emission subpixel are respectively one of three primary colors.
Preferably, the ultraviolet emission pixels includes a first ultraviolet emission subpixel, a second ultraviolet emission subpixel, and a third ultraviolet emission subpixel, and wherein wavelengths of the ultraviolet beams emitted from the first ultraviolet emission subpixel, the second ultraviolet emission subpixel, and the third ultraviolet emission subpixel are different.
Preferably, the first lens respectively converts the ultraviolet beams emitted from the first ultraviolet emission subpixel, the second ultraviolet emission subpixel, and the third ultraviolet emission subpixel into one of the three primary colors.
Preferably, when the ultraviolet beams emitted from the ultraviolet emission pixels pass through the first lens, a brightness of the converted visible beams converted by the first lens is the same with the brightness of the visible beams emitted from the visible emission pixels after the visible beams pass through the second lens.
Preferably, the ultraviolet emission pixels and the visible emission pixels are interleaved with each other along a column direction.
Preferably, the ultraviolet emission pixels and the visible emission pixels are interleaved with each other along a row direction.
In view of the above, the 3D display device includes a display unit and a glass cooperative operate with the display unit. The display unit includes a plurality of ultraviolet emission pixels and visible emission pixels. A 2D display image is integrated after the visible beams enter the observers retina in a glasses-free mode. After wearing the glasses, the ultraviolet beams emitted from the ultraviolet emission pixels pass through the fluorescence lens and are red-shifted into visible beams so as to enter the observers retina together with the visible beams passing through the second lens to integrate the 3D image. Thus, the 3D display device can highly separate the left parallax image and the right parallax image. In addition, the response time is short, the contrastness is high, the viewing angle is large, and the 3D display performance is good.
As stated above, in order to overcome the problems of the current technology, the 3D display device of the claimed invention includes a display unit and a glass. The display unit includes a plurality of ultraviolet emission pixels and visible emission pixels. The glass at least includes a first lens and a second lens. The first lens is for converting the ultraviolet beams emitted from the ultraviolet emission pixels into visible light beams The second lens is for directly receiving the visible light beams emitted from the visible emission pixels.
Furthermore, the display unit preferably is an OLED display. The first lens preferably adopts fluorescence lens.
Embodiments of the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. In the embodiments, preferably, a large-scale active AMOLED display is adopted as the display unit as one example. It can be understood that other OLED, such as Passive Matrix Organic Light Emitting Diode (PMOLED), can also be adopted.
As shown in
The first ultraviolet emission subpixel 111, the second ultraviolet emission subpixel 112, and the third ultraviolet emission subpixel 113 of each of the ultraviolet emission pixels 110 are arranged along the row direction, as indicated by “A”. The first visible emission subpixel 121, the second visible emission subpixel 122, and the third visible emission subpixel 123 of the visible emission pixels 120 are also arranged along the row direction “A”. At the same time, the ultraviolet emission pixels 110 and the visible emission pixels 120 are interleaved along the row direction “A.”
It can be understood that the configuration of the pixels of the display unit is not limited to
Alternatively, in another embodiment as shown in
Alternatively, in another embodiment as shown in
Referring to
As the ultraviolet beams are converted into the visible beams by the first lens 210, the brightness of the converted visible beams is smaller than that of the ultraviolet beams. In order to eliminate the brightness difference between the first lens 210 and the second lens 220, the transmittance of the second lens 220 is determined by the spectrum intensity of the ultraviolet beams emitted from the ultraviolet emission pixels and the spectrum intensity of the converted visible beams after passing through the first lens 210. That is, the transmittance of the second lens 220 relates to a ratio of the spectrum intensity of the converted visible beams after passing through the first lens 210 to the spectrum intensity of the ultraviolet beams emitted from the ultraviolet emission pixels. Preferably, the ratio is 1:1.
The 3D display principle is shown in
In step S1, a plurality of ultraviolet emission pixels are controlled to emit the ultraviolet beams to display the first image, i.e., the left parallax image, and a plurality of visible emission pixels are controlled to emit the visible beams to display the second image, i.e., the right parallax image.
In step S2, the ultraviolet beams emitted from the ultraviolet emission pixels are converted to the visible beams by the first lens, and the visible beams emitted from the visible emission pixels are directed received by the second lens.
In view of the above, the 3D display device includes a display unit and a glass cooperative operate with the display unit. The display unit includes a plurality of ultraviolet emission pixels and visible emission pixels. 2D display image is integrated after the visible beams enter the observers retina in a glasses-free mode. After wearing the glasses, the ultraviolet beams emitted from the ultraviolet emission pixels pass through the fluorescence lens and are red-shifted into visible beams so as to enter the observers retina together with the visible beams passing through the second lens to integrate the 3D image. Thus, the 3D display device can highly separate the left parallax image and the right parallax image. In addition, the response time is short, the contrastness is high, the viewing angle is large, and the 3D display performance is good.
It should be noted that the relational terms herein, such as “first” and “second”, are used only for differentiating one entity or operation, from another entity or operation, which, however do not necessarily require or imply that there should be any real relationship or sequence. Moreover, the terms “comprise”, “include” or any other variations thereof are meant to cover non-exclusive including, so that the process, method, article or device comprising a series of elements do not only comprise those elements, but also comprise other elements that are not explicitly listed or also comprise the inherent elements of the process, method, article or device. In the case that there are no more restrictions, an element qualified by the statement “comprises a . . . ” does not exclude the presence of additional identical elements in the process, method, article or device that comprises the said element.
It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the examples hereinbefore described merely being preferred or exemplary embodiments of the invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201310440015.5 | Sep 2013 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2013/084671 | 9/30/2013 | WO | 00 |
