CN202995145U - A high-resolution non-flashing dual-view display device - Google Patents

Abstract

The utility model discloses a high resolution non-flashing double-vision display device, which comprises a frame and a display part; the display part is composed of a display layer, a TFT control layer, a liquid crystal polarization layer and front glass in sequence. The display layer optimally selects an AMOLED display layer. The high-resolution non-flashing double-view display device does not sacrifice the resolution of the original display device, and has the advantages of high resolution, high transmittance, low crosstalk and the like by combining the AMOLED display screen and the liquid crystal. In addition, the structure is simple, so that the production is convenient, the cost is very low, and the method is suitable for wide popularization.

Description

A high-resolution non-flashing dual-view display device

technical field

The utility model relates to a high-resolution non-flash double-vision display device.

Background technique

Dual-view display, that is, using one display screen to allow different viewers to see two different images. Dual-view display has broad application prospects in real life. For example, in some families, there is only one TV. At the same time, adults want to watch TV series, while children want to watch cartoons. The common way to solve this problem in reality is to display a variety of different pictures in different regions on the display device (picture-in-picture function), but in this way, the picture will be reduced, which will affect the display effect, which is obviously not a perfect way. plan.

In recent years, with the rapid development of 3D technology, dual-view display technology and display devices using principles similar to 3D display technology have emerged. Its basic principle is similar to the current mainstream 3D display principle, which can be divided into active shutter type, polarized light type, and naked-eye type.

The principle of active shutter dual-vision display is: the shutter-type liquid crystal glasses are opened and closed at high speed respectively to control different viewers to perceive different signals, and the TV provides two images with high-speed refresh. This dual-view display method requires the refresh rate of the TV set to be doubled, thereby supporting the switching display of two images for different viewers.

Polarized dual-view display is different from shutter-type dual-view, which uses glasses and the TV itself to cooperate to produce two images. Polarized dual-view devices mainly rely on the polarizing film on the front of the LCD panel to divide the picture displayed on the TV into angled polarized light. Viewers perceive different parallax images by wearing polarized glasses. At present, the industry's biggest criticism of polarized light is the loss of resolution. Due to the principle of polarized light display, the resolution of the image formed by this method can only reach half of the original source, that is, the actual 1080p full HD signal is displayed through the polarized light. Only the "quasi-HD" level of 540p.

Naked-eye technology mainly includes methods such as parallax barriers and lenticular lenses to enable people in different positions to see different images. But the naked-eye technology is still immature, the output is not stable, and the price is high.

The traditional polarized double-view display is shown in Figure 1. The odd-numbered rows and even-numbered rows (or odd-numbered columns, even-numbered columns) of the LCD display are divided into two different pictures, and a polarization separation layer is placed on it , the role of this layer is to adjust the polarization directions displayed by the odd-numbered and even-numbered rows of pixels to the polarization directions corresponding to different viewers (the two polarization directions are perpendicular to each other). Therefore, after synthesis, when viewing through polarized glasses, viewers wearing glasses with different polarization directions can only receive odd and even line images that match their own polarization directions. Therefore, the image resolution of the picture observed by any viewer is only half of the original LCD display screen, which is also the biggest defect of the polarized dual-view display device.

Contents of the invention

In view of the above problems, the utility model develops a novel polarized double-view display device. The device uses polarized glasses and is composed of an AMOLED display layer, a TFT control layer, a liquid crystal polarizing layer and a front glass. The TFT control layer dynamically The liquid crystal deflection direction of each pixel in the liquid crystal polarizing layer is controlled, and two different polarized images are obtained after decomposition. Different observers can obtain the desired picture by wearing polarized glasses whose polarization directions are perpendicular to each other. The technical means adopted in the utility model are as follows:

A high-resolution flashless double-view display device includes a frame and a display part; the display part is sequentially composed of a display layer, a TFT control layer, a liquid crystal polarizing layer and a front glass.

The display layer is optimally selected as an AMOLED display layer.

The display layer is an LCD display layer.

The high-resolution non-flashing dual-view display device does not sacrifice the resolution of the original display device, and the combination of the AMOLED display screen and the liquid crystal can have the advantages of high resolution, high transmittance, and low crosstalk. In addition, because of its simple structure, it is not only convenient for production, but also very low in cost and suitable for wide promotion.

Description of drawings

Figure 1 The principle of traditional polarized dual-view display;

Figure 2 shows the dual-view display device of the utility model;

Figure 3: An illustration of the principle of full-resolution images obtained by different viewers; Figure a in the figure is an illustration of the principle of full-resolution images obtained by different viewers; Figure b in the figure shows the polarization direction of a pixel point after passing through the liquid crystal polarizing layer. Change the schematic diagram; Figure c in the figure is a schematic diagram of different images obtained by A and B through different polarized glasses.

Detailed ways

The embodiment is described in detail in conjunction with the accompanying drawings:

Referring to Fig. 2 for a specific embodiment, the high-resolution non-flash double-view display device includes a frame and a display portion; the display portion is sequentially composed of a display layer 1, a TFT control layer 2, a liquid crystal polarizing layer 3, and a front glass 4. . The display layer is optimally selected as an AMOLED display layer. The display layer may also be an LCD display layer.

Before explaining the working principle, we first illustrate the image obtained by two viewers A and B (more viewers, as long as they wear corresponding glasses) through polarized glasses in combination with Figure 3, as shown in Figure 3(c), according to the display Two images of A and B at a certain pixel point (the polarization direction is vertical), the display intensity of the pixel point before decomposition can be determined, and the polarization direction of the image after passing through the AMOLED display layer is determined (assuming a 45-degree direction), as shown in Figure 3 As shown in (a), in this way, on the AMOLED display layer, we can determine the display image on the AMOLED display layer through the display of each pixel point synthesized above, and then each pixel point should be deflected according to the synthesized polarization direction to α direction, as shown in Figure 3(b). Finally, through the decomposition of the polarizer, the A and B images corresponding to the polarization directions are respectively obtained.

Next, we will use the device of this case to explain the functions of each part in detail. As shown in Figure 2, the AMOLED display layer displays the composite image of the two images of A and B before they are decomposed, and the polarization direction is fixed at 45 degrees (it can also be other direction), which can be easily achieved by adding a corresponding polarizing film on the AMOLED display layer. The liquid crystal polarizing layer is sandwiched between the front glass and the TFT control layer. The function of these three layers is to dynamically control the polarization direction of each pixel. The role of the TFT control layer is to control the voltage of each pixel, so that the liquid crystal is deflected under the control of the voltage. The deflection of the liquid crystal is to change the polarization direction of the light passing through this point. Therefore, the deflection direction of each pixel on the polarizing layer is Can be adjusted to the required α direction. After adjusting the polarization direction, the image can be decomposed into two vertically polarized images, which can be obtained by two viewers wearing different biased eyes, A and B, so that dual-view display can be realized. Since each pixel on the AMOLED display layer will decompose and enter the eyes of each viewer, the resolution of the picture will not be halved, and the AMOLED display device is self-illuminating, and only a polarizing film needs to be added in front, so through The efficiency is much higher than that of the traditional LCD dual-view display device with the same principle. The traditional polarized double-view display still has the problem of crosstalk between the odd and even rows of the polarization separation layer, but because the principle of this patent is the dynamic control of the full-screen pixels, this problem does not exist, so it has the advantage of low crosstalk .

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and its inventive concept shall be covered by the protection scope of the present utility model.

Claims (3)

1. A high-resolution non-flashing type dual-view display device, comprising a frame and a display portion; It is characterized in that the display portion is composed of a display layer, a TFT control layer, a liquid crystal polarizing layer and a front glass in sequence. 2. A high-resolution non-flickering dual-view display device according to claim 1, wherein the display layer is an AMOLED display layer. 3. A high-resolution flashless dual-view display device according to claim 1, wherein the display layer is an LCD display layer.

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