CN110456517A - 3D display screen and 3D display method thereof - Google Patents

Abstract

A kind of 3D display screen, including front polarizer, preceding liquid crystal display and rear liquid crystal display, rear polarizer and backlight for showing identical image simultaneously, the front polarizer is set to the light-emitting surface of the preceding liquid crystal display, liquid crystal display interval is set to the rear side of the preceding liquid crystal display after described, and incidence surface of its light-emitting surface towards the preceding liquid crystal display, the rear liquid crystal display, rear polarizer and backlight are cascading from front to back.The present invention shows similar image by preceding liquid crystal display and rear liquid crystal display simultaneously, and the two time interval is arranged, image can be optically overlapped by the backlight that backlight generates, due to front and back screen every Ullage from, along with the edge processing of picture, the display image that front and back can be made to shield connects, the effect of 3D is presented, since 3D effect is the physics superposition of front and back screen display content, so seen by person is real screen, mended without brain, dizziness feeling will not be generated, also, display resolution does not reduce.

Description

3D display screen and 3D display method thereof

technical field

The invention belongs to the technical field of display screens, and in particular relates to a 3D display screen and a 3D display method thereof.

Background technique

With the popularization of automobile consumption, people have higher and higher requirements for the intelligent user experience of automobile products when driving, and the traditional 2D display screen can no longer meet the needs of users to pursue differentiation and high-end. 3D display screen is becoming more and more popular, because it can display 3D effect, so users urgently need to realize 3D display effect on the car.

However, at present, 3D display screens generally use 3D grating films to present different perspectives in the left and right eyes of the human being to simulate a virtual 3D effect. The disadvantage is that users are prone to dizziness, and the display effect is not good. The disadvantage is that it is not effective for use in vehicle products.

The Chinese invention patent publication number CN201610281701 describes a 3D display and a 3D display device, which include a front display screen and a rear display screen stacked with the front display screen, and the light emitting surface of the front display screen faces away from the A rear display screen, the light-emitting surface of the rear display screen faces the front display screen, and the front display screen can be used as a grating of the rear display screen to perform 3D display. Among them, the display area of the front display screen and the non-display area are separated. The display area uses a transparent material to display the content of the rear display screen. The non-display area cannot see the content of the rear screen, so this design is adopted. The front display screen only acts as a grating, and does not actually display the content. People's left and right eyes see the content at different angles, thus producing a 3D effect in the brain. It has the following disadvantages:

1. The resolution of the front display is M/2*N in the horizontal direction (M is the number of columns of pixels on the display, and N is the number of rows of pixels on the display), which means that the resolution is halved.

2. The grating makes the content seen by the left and right eyes inconsistent, so that the brain produces a 3D illusion. If the viewing angle of the human eye changes, the content seen by the eyes will change slightly, and the brain will constantly fill in the 3D picture, resulting in Dizziness.

3. Both the front and rear display screens use AMOLED, which has high cost and short lifespan.

SUMMARY OF THE INVENTION

Based on this, in view of the above technical problems, a 3D display screen and a 3D display method thereof are provided.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

A 3D display screen includes a front polarizer, a front liquid crystal screen, a rear liquid crystal screen, a rear polarizer and a backlight, the front polarizer is arranged on the light emitting surface of the front liquid crystal screen, and the rear liquid crystal screen is arranged at intervals on the The rear side of the front liquid crystal screen, and its light emitting surface faces the light incident surface of the front liquid crystal screen, the rear liquid crystal screen, the rear polarizing plate and the backlight plate are sequentially stacked from front to back.

The solution also includes optical glass, which is attached to the front surface of the front polarizer.

The front liquid crystal screen and the rear liquid crystal screen are both TFT liquid crystal screens.

The solution also relates to a 3D display method for a 3D display screen, including:

generating a first image and a second image identical to the original image;

Performing progressive transition processing on the edges of the first image and the second image from the inside to the outside, and the width of the progressive transition area of the second image is greater than the width of the progressive transition area of the first image by 1-2 mm;

sending the first image and the second image after the gradual transition processing to the front LCD screen and the rear LCD screen respectively;

A backlight is generated by a backlight panel, and the backlight sequentially passes through the rear liquid crystal screen and the front liquid crystal screen to optically superimpose the first image and the second image to produce a 3D effect.

Progressive transition processing with professional interface design software.

The width of the progressive transition area of the second image is 3-4 mm, and the width of the progressive transition area of the first image is 1-2 mm.

The present invention displays similar images simultaneously through the front liquid crystal screen and the rear liquid crystal screen, and the two are arranged at intervals in the front and back, and the images can be optically superimposed by the backlight generated by the backlight panel. The edge processing of the front and rear screens can connect the display images of the front and rear screens. From all angles, the 3D effect can be presented. Since the 3D effect is the physical superposition of the content displayed on the front and rear screens, what the human eye sees is the actual picture. The angles are the same, no brain compensation is needed, so there is no dizziness, and the display resolution is not reduced.

Description of drawings

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments:

Fig. 1 is the structural representation of the present invention;

Fig. 2 is a schematic diagram of the present invention;

FIG. 3 is a schematic diagram of displaying a 3D five-pointed star according to the present invention.

Detailed ways

As shown in FIG. 1 , a 3D display screen includes a front polarizer 11 , a front liquid crystal screen 12 , a rear liquid crystal screen 13 , a rear polarizer 14 , a backlight plate 15 and an optical glass 16 .

The front polarizer 11 is disposed on the light emitting surface of the front liquid crystal screen 12 .

The rear liquid crystal screen 13 is disposed on the rear side of the front liquid crystal screen 12 at intervals, and its light emitting surface faces the light incident surface of the front liquid crystal screen 12 .

The rear liquid crystal screen 13 , the rear polarizing plate 14 and the backlight plate 15 are sequentially stacked from front to rear.

The front polarizer 11 and the rear polarizer 14 are polarizers, and the purpose is to turn the backlight into polarized light and have the functions of shielding and transmitting incident light. The imaging of the liquid crystal display must rely on polarized light, and all liquid crystals have two polarized light sheets in the front and back, which are closely attached to the liquid crystal glass to form a liquid crystal sheet.

The distance between the front LCD screen and the rear LCD screen is adjusted according to the actual display screen transmittance and backlight brightness.

3D display screen brightness (L _3D ) = backlight brightness (L _BL ) x rear LCD screen transmittance (T _{rear LCD screen} ) x front LCD screen transmittance (T _{front LCD screen} ).

The front liquid crystal screen 12 and the rear liquid crystal screen 13 of the present invention are used to display similar images at the same time, and the two are arranged at intervals in the front and back. The backlight generated by the backlight plate 15 can optically superimpose the images. It can present a 3D effect. Since the 3D effect is a physical superposition of the content displayed on the front and rear screens, what the human eye sees is the actual picture, which is the same from all angles. It can realize the real 3D display effect without causing dizziness to the user, and the display resolution is not reduced, it is still M*N (M is the number of columns of pixels on the display screen, and N is the number of rows of pixels on the display screen).

The optical glass 16 is attached to the front surface of the front polarizer 11. The function of the optical glass 16 is to protect the liquid crystal screen, and it can also achieve the effect of integrating the display surface. Of course, the optical glass 16 can also be omitted.

In this embodiment, the front liquid crystal screen and the rear liquid crystal screen are both TFT liquid crystal screens, which have low cost and long service life.

As shown in Figure 1, as shown in Figure 1, a 3D display method of a 3D display screen includes:

1. Send the original image to be displayed to the processor, and the processor will generate a first image and a second image that are the same as the original image.

2. The processor performs progressive transition processing on the edges of the first image and the second image from the inside to the outside. The width of the progressive transition area of the second image is 1-2mm larger than the width of the progressive transition area of the first image. The width here refers to the progressive transition area. The distance between the inner and outer edges of the transition area.

Gradual transition processing can be done through professional interface design software, such as QT or Kanzi.

In this embodiment, the width of the gradual transition area of the second image is 3-4 mm, and the width of the gradual transition area of the first image is 1-2 mm. Of course, in the actual use process, the width between the front and rear screens can be adjusted according to the size of the image. Distance adjusts the width of the progressive transition area.

3. The processor sends the first image and the second image after the gradual transition processing to the front liquid crystal screen 12 and the rear liquid crystal screen 13 respectively.

4. The backlight L is generated by the backlight plate 15, and the backlight L passes through the rear liquid crystal screen 13 and the front liquid crystal screen 12 in turn to optically superimpose the first image and the second image to produce a 3D effect, see FIG. 2 .

Through the backlight of the backlight panel 15, the second image of the rear liquid crystal screen 13 is presented through the transparent front liquid crystal screen 12, and is superimposed and combined with the first image of the front liquid crystal screen 12. Due to the space distance between the front and rear screens, plus The screen is pre-processed with edges, which can connect the display contents of the front and rear screens.

As shown in FIG. 3 , taking the display of a 3D five-pointed star as an example, the front LCD screen 12 displays a flat five-pointed star, and at a corresponding position, the rear liquid crystal screen 13 also displays a flat five-pointed star. The edges are gradually transitioned and visually connected through the backlight to present a visually 3D three-dimensional five-pointed star effect at all angles.

However, those skilled in the art should realize that the above embodiments are only used to illustrate the present invention, not to limit the present invention. Variations and modifications of the examples will fall within the scope of the claims of the present invention.

Claims (6)

1. a kind of 3D display screen, which is characterized in that including front polarizer, for simultaneously show identical image preceding liquid crystal display and after Liquid crystal display, rear polarizer and backlight, the front polarizer are set to the light-emitting surface of the preceding liquid crystal display, it is described after between liquid crystal display Every the rear side for being set to the preceding liquid crystal display, and incidence surface of its light-emitting surface towards the preceding liquid crystal display, the rear liquid crystal display retrodeviate Tabula rasa and backlight are cascading from front to back.

2. a kind of 3D display screen according to claim 1, which is characterized in that it further include optical glass, the optical glass Fit in the front surface of the front polarizer.

3. a kind of 3D display screen according to claim 1 or 2, which is characterized in that the preceding liquid crystal display and rear liquid crystal display It is TFT liquid crystal display.

4. a kind of 3D display method of 3D display screen described in a kind of claim 1-3 any one characterized by comprising

Generate the first image identical with original image and the second image；

Gradual transition processing is carried out from inside to outside to the edge of the first image and the second image, second image is gradually It is greater than the gradual transition peak width 1-2mm of the first image into transitional region width；

Gradual transition treated the first image and the second image are sent respectively to preceding liquid crystal display and rear liquid crystal display；

Generate backlight by backlight, the backlight successively penetrate it is described after liquid crystal display and preceding liquid crystal display by the first image with And second image be optically overlapped generation 3D effect.

5. a kind of 3D display method of 3D display screen according to claim 4, which is characterized in that pass through professional interface Software carries out gradual transition processing.

6. a kind of 3D display method of 3D display screen according to claim 4 or 5, which is characterized in that second image Gradual transition peak width be 3-4mm, the gradual transition peak width of the first image is 1-2mm.