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Display unit, barrier device, and method of driving display unit

A display unit and barrier technology, applied in the field of display unit, can solve the problems of slow voltage response, liquid crystal molecular orientation disorder, etc., and achieve the effect of reducing the response time

Active Publication Date: 2012-11-21
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when a voltage is applied to the liquid crystal layer in a state where the voltage is not applied, and the liquid crystal molecules that are aligned perpendicular to the substrate surface are slanted, they are slanted in any direction, which may cause disorder in the orientation of the liquid crystal molecules
In this case, in such liquid crystal display cells, the response to voltage is slower

Method used

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  • Display unit, barrier device, and method of driving display unit
  • Display unit, barrier device, and method of driving display unit
  • Display unit, barrier device, and method of driving display unit

Examples

Experimental program
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example 1

[0136] According to an embodiment of the present disclosure, the preparatory driving waveform portion Wpre is a DC waveform having a prevoltage Vpre, although Wpre is not limited thereto, and in addition to those described in the above-mentioned embodiments of the present disclosure Figure 16A other than the waveforms shown in, may for example be Figures 16B to 16G any waveform shown in . E.g, Figure 16A The preparatory driving waveform part Wpre in may be reversed as a whole, such as Figure 16B , or Wpre can be a pulse waveform that steps up from 0V several times (twice in this example), as in Figure 16C as shown in , or Figure 16C A part of the preparatory driving waveform part Wpre in this example (the latter part in this example) can be as Figure 16D shown in reversed. And, for example, as Figure 16E and 16F As shown, Wpre may be a rectangular waveform transitioning between voltage Vo and 0V. In this case, use such as Figure 16E and 16F The duty cycle of...

example 2

[0139] Also, according to the above-described embodiments of the present disclosure, the preparatory drive waveform portion Wpre is the same waveform pattern, although Wpre is not limited thereto, and, for example, whenever Figure 18 The polarity of the preparatory driving waveform portion Wpre shown in α may be reversed when it is applied to the liquid crystal barriers 11 and 12 . In this example, the display mode is switched several times between the stereoscopic display mode and the normal display (two-dimensional display) mode. When the display mode is switched from the stereoscopic display mode to the normal display mode, the barrier driving part 41 provides the preliminary driving waveform part Wpre as the barrier driving signal DRVS to the liquid crystal barrier 11, as Figure 14 shown in . At this time, the preparatory drive waveform portion Wpre inverts its polarity every time the display mode is switched from the stereoscopic display mode to the normal display mode...

example 3

[0141] Also, according to the above-described embodiments of the present disclosure and the like, the same frame image is repeatedly displayed twice, although the display method is not limited thereto, but on the contrary, for example, it may be as Figure 19 The black image and the frame image are displayed alternately as shown in . here, Figure 19 "B" in (A) of (A) designates a state where a black image is displayed. In the stereoscopic display unit 1B according to this modification example, the display section 20B alternately displays the black image B and the frame image based on the image signal SA or SB. Specifically, the display section 20B repeatedly performs black image display, display based on the image signal SA, black image display, and display based on the image signal SB in order. Then, the backlight 30 is turned on for a period corresponding to the time period when the display section 20B displays a frame image based on the image signal SA or SB. It is to b...

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PUM

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Abstract

A display unit includes: a display section; a barrier section including a plurality of liquid crystal barriers switching an open state and a closed state; and a barrier driving section driving the barrier section with one or a plurality of barrier drive signals. Each of the barrier drive signals is a signal including a first waveform portion being configured of a series of waveforms allowing the liquid crystal barriers to be held in an open state over a plurality of frames, or a second waveform portion being configured of a series of waveforms to allowing the liquid crystal barriers to be switched between an open state and a closed state, and a third waveform portion being located just before the first or second waveform portion and having an average pulse height value smaller than a maximum value of a pulse height value of the first or second waveform portion.

Description

technical field [0001] The present disclosure relates to a parallax barrier type display unit capable of stereoscopic display, a barrier device used in such a display unit, and a method of driving the display unit. Background technique [0002] In recent years, display units capable of stereoscopic display have attracted attention. A stereoscopic display displays left-eye images and right-eye images having parallax components (different viewing angles) from each other, so that viewers realize those images are stereoscopic images with depth by viewing each of those images with their left and right eyes. Also, display units have also been developed to be able to provide viewers with more natural stereoscopic images by displaying three or more images having parallax components with each other. These display units include parallax barrier type display units. This type of display unit simultaneously displays a plurality of images (perspective images) having parallax components ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G02F1/1343G02F1/1335H04N13/04G09G3/36G02B30/25
CPCH04N13/0454G09G3/3406H04N13/0413G09G2320/0252H04N13/0497G09G2330/026G09G2310/0251G02F1/1347G09G2300/023H04N13/0415G09G3/003G09G3/36G09G3/3648H04N13/315H04N13/317H04N13/359H04N13/398
Inventor 中畑佑治
Owner SONY CORP