Naked eye 3D grating display

Abstract

The utility model provides a naked eye 3D grating display which comprises an upper polaroid, an ITO glass liquid crystal box and a lower polaroid which are sequentially arranged from top to bottom, and the ITO glass liquid crystal box comprises an upper ITO glass substrate, an upper orientation layer, a liquid crystal layer, a lower orientation layer and a lower ITO glass substrate which are sequentially arranged from top to bottom; the upper orientation layer and the lower orientation layer are parallel orientation capable of enabling liquid crystal molecules to be symmetrically distributed; 1 / 4 wave plates are arranged on the upper polaroid and the ITO glass liquid crystal box. The utility model provides a quick response type liquid crystal display with optical compensation bending arrangement, which utilizes the parallel orientation relation of the upper orientation layer and the lower orientation layer to convert the traditional liquid crystal molecule twisted arrangement into approximate spreading arrangement, thereby fundamentally cancelling the conversion time generated by the twisting of the liquid crystal molecules. Therefore, the response speed of the liquid crystal display device is greatly improved, the requirement for further improving the refresh frequency can be met, a displayed picture is clearer, the 3D effect is better, and better visual experience is brought to people.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, in particular to a naked-eye 3D grating display. Background Art

[0002] In traditional liquid crystal displays, liquid crystal molecules are arranged in a twisted pattern, and their twist angle is usually between 80 and 270 degrees. The existence of this twisted structure restricts the improvement of the response speed of the liquid crystal display in principle, resulting in the inability of the existing twisted arrangement liquid crystal display to meet the needs in situations where a faster response speed is required. For example, the utility model patent with authorization announcement number CN 202886786U discloses a 3D glasses liquid crystal display, which is sequentially provided with a front polarizer, a front ITO glass substrate, a front ITO pattern, a front insulating layer, a front PI orientation layer, a liquid crystal layer, a rear PI orientation layer, a rear insulating layer, a rear ITO pattern, a rear ITO glass substrate and a rear polarizer from front to back, and a frame glue for sealing is provided between the front ITO glass substrate and the rear ITO glass substrate and around the liquid crystal layer, and a plastic ball with a diameter of 2.2μm is provided in the liquid crystal layer; the friction angle between the front PI orientation layer and the rear PI orientation layer is 90°; the absorption axis of the front polarizer and the absorption axis of the rear polarizer are perpendicular to each other. The response time (Ton+Toff) of the above solution is less than 2.2 ms, which does not significantly improve the response speed of the liquid crystal display device and does not meet expectations. Summary of the invention

[0003] The utility model provides a naked-eye 3D grating display, which transforms the traditional twisted arrangement of liquid crystal molecules into an approximately splayed arrangement, fundamentally eliminating the transition time caused by the twisting of liquid crystal molecules, thereby greatly improving the response speed of the liquid crystal display device.

[0004] To solve the above problems, the present invention is implemented through the following technical solutions:

[0005] A naked-eye 3D grating display comprises an upper polarizer, an ITO glass liquid crystal box and a lower polarizer which are sequentially arranged from top to bottom, the ITO glass liquid crystal box comprises an upper ITO glass substrate, an upper orientation layer, a liquid crystal layer, a lower orientation layer and a lower ITO glass substrate which are sequentially arranged from top to bottom, frame glue is arranged on the upper ITO glass substrate and the lower ITO glass substrate, and plastic balls are arranged in the liquid crystal layer; the upper orientation layer and the lower orientation layer are parallel orientations which can make liquid crystal molecules symmetrically distributed; and a quarter wave plate is arranged on the upper polarizer and the ITO glass liquid crystal box.

[0006] Preferably, the upper alignment layer and the lower alignment layer are alignment layers using polyimide as liquid crystal molecules.

[0007] Preferably, the upper ITO glass substrate and the lower ITO glass substrate are transparent conductive electrodes, which include substrate glass and an ITO coating on the substrate glass.

[0008] Preferably, the thickness of the ITO glass liquid crystal box is 2-5 um, which can further improve the response speed of the liquid crystal.

[0009] Preferably, the conductive points of the upper and lower electrodes are gold balls or silver dots. Gold balls have better conductivity and lower impedance, while silver dots have lower costs but relatively higher impedance.

[0010] Preferably, two ITO glass liquid crystal cells are arranged between the upper polarizer and the lower polarizer, and such a design can obtain a better viewing angle range.

[0011] Compared with the prior art, the advantages and effects of the utility model are:

[0012] 1. The utility model provides a fast-response liquid crystal display with optical compensation bending arrangement, which transforms the traditional twisted arrangement of liquid crystal molecules into an approximate splayed arrangement by utilizing the parallel orientation relationship between the upper orientation layer and the lower orientation layer, thereby fundamentally eliminating the transition time caused by the twisting of the liquid crystal molecules, thereby greatly improving the response speed of the liquid crystal display device. The response speed can be as fast as

[0013] <1ms; can meet the demand for further improvement of refresh frequency, making the display clearer, the 3D effect better, and giving people a better visual experience; in addition to 3D display systems, this technology can also be applied to welding masks, high-speed camera lenses and other fields.

[0014] 2. The parallel orientation of the upper and lower orientation layers makes the liquid crystal molecules in the cell symmetrically distributed, so that the liquid crystal display itself has the characteristics of symmetrical compensation, which can achieve better contrast and viewing angle.

[0015] 3. Adding a 1 / 4 wave plate can convert linear polarization into circular polarization, which can further widen the viewing angle.

[0016] 4. Two ITO glass liquid crystal boxes bonded together can obtain a better viewing angle range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the liquid crystal arrangement principle of the utility model.

[0019] The numbers in the figure are:

[0020] 1. Upper polarizer, 2. ITO glass liquid crystal box, 3. Lower polarizer, 4. Upper ITO glass substrate, 5. Upper orientation layer, 6. Liquid crystal layer, 7. Lower orientation layer, 8. Lower ITO glass substrate, 9. Frame glue, 10. Plastic ball, 11. 1 / 4 wave plate, 12. Glass rod. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with embodiments, but the present invention is not limited to these embodiments.

[0022] like Figure 1 As shown, the utility model discloses a naked-eye 3D grating display, comprising an upper polarizer 1, an ITO glass liquid crystal box 2 and a lower polarizer 3 arranged in sequence from top to bottom. The ITO glass liquid crystal box 2 comprises an upper orientation layer 5, a liquid crystal layer 6, a lower orientation layer 7 and a lower ITO glass substrate 8, which are arranged in sequence from top to bottom as spacers to control the gap between the upper and lower ITO glasses to achieve the required liquid crystal box thickness requirement. A frame glue 9 is provided on the upper ITO glass substrate 4 and the lower ITO glass substrate 8; the ITO glass substrate is a conductive ITO pattern pasted on the inner side of the glass substrate. The upper ITO glass substrate 4, the lower ITO glass substrate 8 and the frame glue 9 constitute the ITO glass liquid crystal box 2 to clamp the liquid crystal layer 6, while the upper orientation layer 5 and the lower orientation layer 7 provide a basis for the orderly arrangement of the liquid crystal molecules. In the utility model, the upper orientation layer 5 and the lower orientation layer 7 are parallel oriented, that is, the upper orientation layer 5 and the lower orientation layer 7 are rubbed in the same direction, and the friction angle between the two is 0°, so that the liquid crystal molecules are arranged in an approximately splayed arrangement, such as Figure 2 As shown, the left side is the state of the liquid crystal molecules before power is supplied, and the right side is the state of the liquid crystal molecules after power is supplied; the transition time caused by the twisting of the liquid crystal molecules is fundamentally eliminated, thereby greatly improving the response speed of the liquid crystal display device, and can meet the needs of further increasing the refresh rate, making the display clearer, the 3D effect better, and giving people a better visual experience; and it also makes the liquid crystal molecules in the box symmetrically distributed, so that the liquid crystal display itself has the characteristics of symmetrical compensation, which can achieve better contrast and viewing angle.

[0023] Plastic balls 10 are provided in the liquid crystal layer 6, and glass rods 12 are provided in the frame glue. The plastic balls 10 and the glass rods 12 are used as spacers to control the gap between the upper ITO glass substrate 4 and the lower ITO glass substrate 8 to achieve the required liquid crystal box thickness requirement. In the preferred embodiment, the thickness of the ITO glass liquid crystal box 2 is 4 μm, which further reduces the response time of the liquid crystal.

[0024] A quarter wave plate 11 is provided on the upper polarizer 1 and the ITO glass liquid crystal box 2 for compensation. The quarter wave plate can convert linear polarization into circular polarization, further widen the viewing angle, and obtain better contrast.

[0025] Furthermore, the upper alignment layer 5 and the lower alignment layer 7 use polyimide as alignment layers for liquid crystal molecules, providing a basis for orderly arrangement of liquid crystal molecules. At the same time, the liquid crystal molecules are controlled to stand upright or fall down by applying an external voltage to realize bright and dark state display.

[0026] Furthermore, the upper ITO glass substrate 4 and the lower ITO glass substrate 8 are transparent conductive electrodes, which include substrate glass and an ITO coating on the substrate glass.

[0027] In this preferred embodiment, gold balls or silver dots are used as the conduction points of the upper and lower electrodes to achieve the purpose of conducting the upper and lower electrodes.

[0028] Two ITO glass liquid crystal cells 2 are arranged between the upper polarizer 1 and the lower polarizer 3, so as to obtain a better viewing angle range.

[0029] The above embodiments are only specific examples for further illustrating the purpose, technical scheme and beneficial effects of the utility model, and the utility model is not limited thereto. Any modification, equivalent replacement, improvement, etc. made within the scope of the disclosure of the utility model are included in the protection scope of the utility model.

Claims

1. A naked eye 3D grating display, comprising an upper polarizer (1), an ITO glass liquid crystal cell (2) and a lower polarizer (3) arranged in sequence from top to bottom, characterized in that: The ITO glass liquid crystal box (2) comprises an upper ITO glass substrate (4), an upper orientation layer (5), a liquid crystal layer (6), a lower orientation layer (7) and a lower ITO glass substrate (8) which are arranged in sequence from top to bottom; frame glue (9) is arranged on the upper ITO glass substrate (4) and the lower ITO glass substrate (8); plastic balls (10) are arranged in the liquid crystal layer (6); the upper orientation layer (5) and the lower orientation layer (7) are parallel oriented so as to make the liquid crystal molecules symmetrically distributed; and a quarter wave plate (11) is arranged on the upper polarizer (1) and the ITO glass liquid crystal box (2).

2. The naked eye 3D grating display according to claim 1, characterized in that: The upper alignment layer (5) and the lower alignment layer (7) use polyimide as alignment layers for liquid crystal molecules.

3. The naked eye 3D grating display according to claim 1, characterized in that: The upper ITO glass substrate (4) and the lower ITO glass substrate (8) are transparent conductive electrodes, which comprise substrate glass and an ITO coating on the substrate glass.

4. The naked eye 3D grating display according to claim 1, characterized in that: The thickness of the ITO glass liquid crystal box (2) is 4 μm.

5. The naked eye 3D grating display according to claim 1, characterized in that: The conduction points of the upper and lower electrodes are gold balls or silver dots.

6. A naked-eye 3D grating display according to any one of claims 1 to 5, characterized in that: Two ITO glass liquid crystal boxes (2) laminated up and down are arranged between an upper polarizer (1) and a lower polarizer (3).

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