JP3176933U - Multi-parallax sorting lenticular lens sheet - Google Patents

Abstract

The present invention provides a display that can eliminate the position of flat display and can display autostereoscopic display on a flat screen in a display that gives a sense of depth and popping out in a wide range in autostereoscopic display.
A lenticular lens is provided with an opening / closing portion along a lens by a plurality of liquid crystal shutter units, and a switching order of the liquid crystal shutter units is changed by a processor unit by a left video input detection unit and a right video input detection unit. Switching between the forward and reverse directions changes the traveling direction of light and outputs light. At the time of detection by the 2D video input detection unit 8, all the liquid crystal shutter units 2 are opened and light is output in a direction perpendicular to the display unit.
[Selection] Figure 1

Description

  The present invention relates to a lenticular lens and a control device that distribute a plurality of images in multiple directions for use in stereoscopic display and expand a viewing angle.

  This lenticular lens is a lens sheet for autostereoscopic viewing intended to be expanded in the direction of multiple parallaxes when separating a plurality of overlapping images in stereoscopic display or the like to create a stereoscopic image. The conventional lenticular lens has a problem in that a blind spot that does not form a three-dimensional image accurately and does not become a three-dimensional image occurs.

  When viewing a planar image through a lenticular lens provided on the screen, the image is out of focus and can not be appreciated, and when viewing the screen from an arbitrary distance from the screen, it is not focused and does not become a three-dimensional image Was difficult.

  The present invention attempts to extend the viewing angle by combining an optical device and a control system as a solution to this problem.

  An object of the present invention is to provide a multi-parallax sorting lenticular lens sheet that enables stereoscopic viewing from any viewing position and angle by extending the viewing angle with a lenticular lens used for autostereoscopic viewing.

  The multi-parallax lenticular lens sheet according to claim 1 of the present invention has a liquid crystal display unit, a concave lens that disperses light and a plurality of liquid crystal shutters arranged side by side, and a built-in lenticular lens sheet is arranged on the front surface to receive a signal from the left and right image input detection unit. In the processor unit, the switching module unit counts the pulses from the high-frequency pulse oscillation circuit with a counter, and then controls the refraction of the image information displayed on the liquid crystal by changing the order of opening and closing the liquid crystal shutter, and simultaneously performs parallax in multiple directions. It is characterized by making.

  A multi-parallax lenticular lens sheet according to claim 2 of the present invention is characterized in that a lenticular lens provided with a plurality of liquid crystal shutters according to claim 1 is simultaneously controlled by a processor unit or the like.

  The multi-parallax lenticular lens sheet according to claim 3 of the present invention is the liquid crystal shutter unit according to claim 1 which is a switching module that stops counting of the counter via the 2D video input detection unit and opens all the liquid crystal shutter units. It is characterized by making 2D images easy to see.

  The angle at which the light passing through the multi-parallax lenticular lens used for stereoscopic vision is refracted can be expanded, and the direction of the refraction angle can be distributed to the left and right.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an overall view of a multi-parallax lenticular lens sheet. Reference numeral 1 denotes a liquid crystal display unit, which is arranged with 2 liquid crystal shutter units and a 3 concave lens interposed therebetween. The four lenticular lens sheet unit is disposed in close contact with the front part of the plurality of two liquid crystal shutter units.

  Similar optical devices are arranged vertically and horizontally in the shape of a screen and arranged on a screen used in an image device.

  Next, the 5 liquid crystal shutter control unit for controlling the 2 liquid crystal shutters, the video signals input from the 6 left video input detection unit, the 7 right video input detection unit, and the 8 2D video input detection unit necessary to reproduce the stereoscopic video are , Connected to 10 switching modules via 9 processor units.

  The switching module 10 is connected to the 11 liquid crystal shutter unit via a 12 DAC circuit connected to the 11 ROM circuit section.

  In order to perform scanning to distribute optical information in the left-right direction, the 11 ROM circuit unit can switch 13 first ROM and 14 second ROM to 13 first ROM and 14 second ROM by 10 switching modules. Further, the 15 counting section for reading the 11 ROM circuit section is connected to the 10 switching module via the 17 counter from the 16 high frequency pulse oscillation circuit.

  First, when a left video signal is input, a 15 counter that always outputs an address signal pulse generates a high-frequency high-speed pulse by a 16 high-frequency pulse oscillation circuit and counts by a 17 counter. When entering the 10 switching module, the 13 liquid crystal shutter units are switched to the 13th first ROM, and the address of the 15 liquid crystal shutter units is written and read from the 15th counting unit.

  Similarly, the same operation is executed from the 7 right image detecting unit when the right image is input, but the opening / closing order of the two liquid crystal shutter units is reversed from that when the left image is input from the left image detecting unit.

  When displaying 2D video, it is not necessary to distribute left and right, so the 9 processor unit commands the 12 DAC circuit when receiving a signal from the 8 2D video input detection unit so that all 2 liquid crystal shutter units are open. . Then, the two liquid crystal shutter units are all opened to allow light to pass. The light goes straight and can be viewed normally as 2D images.

  Referring to FIG. 2, 8 processor units are connected to the 10 switching module, while 16 high frequency pulse oscillation circuits are counted by 17 counters and enter the 10 switching module to enter the fully open setting mode when 2D video input is detected. When the address signal goes to the first ROM at time 13 and when the right image is detected, the address signal enters the second ROM.

  Since this lenticular lens sheet control system is connected to each unit in which the lenticular lens sheets are arranged, the light output path simultaneously swings in the same direction. When the shake width is enlarged, the parallax information can be obtained instantaneously when shaken at a high speed, so that a stereoscopic viewing angle and an even stereoscopic viewing range can be obtained.

  It is a figure which shows the structure and control circuit of a lenticular lens part of this invention.   It is a detailed diagram of the control circuit of the present invention.   It is a figure which shows the optical path which passes the lenticular lens of this invention.

DESCRIPTION OF SYMBOLS 1 Liquid crystal display part 2 Liquid crystal shutter unit 3 Concave lens 4 Lenticular lens sheet unit 5 Liquid crystal control part 6 Left video input detection part 7 Right video input detection part 8 2D video input detection part 9 Processor part 10 Switching module 11 ROM circuit part 12 DAC circuit 13 First ROM
14 Second ROM
15 Counter 16 High-frequency pulse oscillation circuit 17 Counter

Claims (3)

For 3D display, a liquid crystal display unit, a lenticular lens sheet unit with a combination of a concave lens that disperses light and a liquid crystal shutter unit are arranged in the front, and a switching module unit is installed in the processor unit by a signal from the left and right video input detection unit. The control means of the liquid crystal shutter control unit, on the other hand, counts the pulse signal from the high-frequency pulse oscillation circuit with a counter, and switches the opening / closing order of each liquid crystal shutter unit in the forward or reverse direction from the liquid crystal shutter control unit, via the DAC circuit A multi-parallax lenticular lens sheet characterized in that the liquid crystal shutter unit is switched to produce parallax in multiple directions by controlling the optical refractive index of the image information from the liquid crystal display unit together with the concave lens. 2. A multi-parallax lenticular lens according to claim 1, wherein a plurality of liquid crystal shutters arranged in a liquid crystal shutter unit are sandwiched between a lenticular lens sheet unit, a concave lens and a liquid crystal display unit, and are connected in parallel to a DAC circuit and operated simultaneously. Sheet. When a detection signal is input from a 2D video input detection unit to a counter for switching a liquid crystal shutter unit, the counting operation of the counter is stopped via a processor, and then all the liquid crystal shutter units are opened to make it easy to view the 2D video. Item 3. The multi-parallax lenticular lens sheet according to item 1 and item 2.

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