Liquid crystal optical element and image display device
A liquid crystal optics and component technology, applied in optical components, optics, electrical components, etc., can solve the problems of difficult to achieve the expected refractive index distribution characteristics of lenses, impossible to obtain light condensing performance, and no special consideration of the controllability of liquid crystal molecules.
Inactive Publication Date: 2013-10-30
KK TOSHIBA
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Problems solved by technology
[0006] However, in the prior art described above, the controllability of the liquid crystal molecules is not particularly considered, so there are cases where it is difficult to achieve the desired refractive index distribution characteristics of the lens
In this case, since it is impossible to obtain the required light-gathering performance, it leads to the disadvantage of deteriorating the image quality of the displayed stereoscopic image
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[0021] Hereinafter, embodiments of a liquid crystal optical element and an image display device will be described in detail with reference to the accompanying drawings. In the following embodiments, components performing the same operations are denoted by the same numerals and repeated explanations are omitted as appropriate.
[0022] figure 1 is a schematic cross-sectional view of the liquid crystal optical element configuration according to the first embodiment. figure 2 It is a plan view of the liquid crystal optical element in the first embodiment.
[0023] Such as figure 1 As shown, the liquid crystal optical element 100 in the first embodiment includes a first substrate 11, a second substrate 12 arranged opposite to the first substrate 11, and a liquid crystal layer 13 sandwiched between the first substrate 11 and the second substrate 12 .
[0024] The surface of the first substrate 11 on the liquid crystal layer 13 side is provided with a first electrode 14 , a sec...
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Abstract
The invention relates to a liquid crystal optical element and an image display device. According to one embodiment, liquid crystal optical element includes: a first board; a second board; a liquid crystal layer; first electrodes; second electrodes; third electrodes; and a fourth electrode. The liquid crystal optical element generates refractive index distribution functioning as a lens. The first electrodes are at positions corresponding to end portions of the lens and on the liquid crystal layer side of the first board. The second electrodes are at positions corresponding to discontinuity points of the lens and on the liquid crystal layer side of the first board. The third electrodes are at positions corresponding to lens surfaces of the lens and on the liquid crystal layer side of the first board. The fourth electrode is provided to the whole surface on the liquid crystal layer side of the second board and includes first cutout portions formed at parts opposing the third electrodes.
Description
[0001] References to related applications [0002] This application is based on and claims priority from Japanese Patent Application No. 2012-103579 filed on April 27, 2012, the entire contents of which are incorporated herein by reference. technical field [0003] Embodiments described herein generally relate to liquid crystal optical elements and image display devices. Background technique [0004] Liquid crystal optical elements that utilize birefringence of liquid crystal molecules and apply a voltage to the liquid crystal molecules to change the distribution of the refractive index are known in the past. In addition, a stereoscopic image display device has been proposed, which is constituted by integrating a liquid crystal optical element and an image display module. [0005] In the above-mentioned stereoscopic image display device, the refractive index distribution of the liquid crystal optical element is changed between two states, that is, the state where the image ...
Claims
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IPC IPC(8): G02F1/1343G02F1/29G02B27/22
CPCH04N13/0404G02F1/134309G02F1/29H04N13/0454G02B27/2214H04N13/0452H04N13/305H04N13/359G02B30/27
Inventor 桃井芳晴高木亚矢子上原伸一岐津裕子柏木正子
Owner KK TOSHIBA