CROSS REFERENCE TO RELATED APPLICATIONS

This application is a U.S. National Phase of International Patent Application No. PCT/JP2019/014551 filed on Apr. 1, 2019, which claims priority benefit of Japanese Patent Application No. JP 2018-107549 filed in the Japan Patent Office on Jun. 5, 2018. Each of the above-referenced applications is hereby incorporated herein by reference in its entirety.

FIELD

The present disclosure relates to a liquid crystal display device and a projection type display device.

BACKGROUND

In recent years, a technique of a projection type display device (projector) using a liquid crystal display device has been developed. A plurality of pixels is arranged in the liquid crystal display device, and a polarizer is provided in each pixel. In the liquid crystal display device, by controlling of polarization of incident light in each pixel, it is controlled whether or not the incident light can pass through the polarizer provided on an emission side. Accordingly, the liquid crystal display device can reflect image information including pixel information of each pixel in emitted light, and thus a desired image or the like can be displayed on the projection type display device.

In the projection type display device, the image information is read out by controlling of polarization in the liquid crystal display device and an image is displayed. Therefore, when light leakage occurs in the liquid crystal display device, defective image quality or the like is caused. As a method for suppressing such defective image quality, there is a method for suppressing light leakage. For example, the technique described in Patent Literature 1 is disclosed as a technique for suppressing light leakage.

Patent Literature 1 discloses a technique of suppressing a phenomenon in which incident light is reflected by a polarizer and irradiated to a drive transistor or the like (so-called return light) in order to suppress image defects (flicker or the like) due to light leakage. Specifically, in the liquid crystal display device, a pixel electrode, an inorganic polarizer, and a drive transistor are arranged in this order from an incident surface side of the incident light so that the return light from the polarizer does not strikes the drive transistor.

CITATION LIST

Patent Literature

Patent Literature 1: JP 2008-145649 A

SUMMARY

Technical Problem

However, in the technique disclosed in Patent Literature 1, countermeasures against image quality defects due to return light are mainly taken, and further countermeasures against incident light, which is one of factors of image quality defects, have been required. In the projection type display device as described in Patent Literature 1, in order to improve the image quality, for example, it is necessary to increase brightness of a display image, that is, to improve an aperture ratio of each pixel of the liquid crystal display device. In view of the above circumstances, it is desirable to further improve the aperture ratio in the liquid crystal display device.

Solution to Problem

According to the present disclosure, a liquid crystal display device is provided that includes: a plurality of pixels each including: a pixel electrode and a counter electrode provided with a liquid crystal layer interposed between the pixel electrode and the counter electrode; a drive circuit layer provided on a surface side of the pixel electrode opposite to a surface side on which the liquid crystal layer is provided, in which a drive circuit is formed including a drive transistor that controls application of a potential to the pixel electrode; a drive-side substrate provided on a surface of the drive circuit layer opposite to a surface on which the pixel electrode is provided; and a counter-side substrate provided on a surface of the counter electrode opposite to a surface on which the liquid crystal layer is provided, wherein the drive circuit layer is provided with a wire grid polarizer facing the pixel electrode, the wire grid polarizer being formed through arranging of metal wires extending in one direction at equal intervals, and given a predetermined potential.

Moreover, according to the present disclosure, a projection type display device is provided that includes: a light source, a condensing optical system that guides light emitted from the light source to a liquid crystal display device, and a projection optical system that enlarges and projects light optically modulated by the liquid crystal display device, wherein the liquid crystal display device includes a plurality of pixels each including: a pixel electrode and a counter electrode provided with a liquid crystal layer interposed between the pixel electrode and the counter electrode; a drive circuit layer provided on a surface side of the pixel electrode opposite to a surface side on which the liquid crystal layer is provided, in which a drive circuit is formed including a drive transistor that controls application of a potential to the pixel electrode; a drive-side substrate provided on a surface of the drive circuit layer opposite to a surface on which the pixel electrode is provided; and a counter-side substrate provided on a surface of the counter electrode opposite to a surface on which the liquid crystal layer is provided, and the drive circuit layer is provided with a wire grid polarizer facing the pixel electrode, the wire grid polarizer being formed through arranging of metal wires extending in one direction at equal intervals, and given a predetermined potential.

According to the present disclosure, a structure for forming storage capacitance of each pixel in a liquid crystal display device is provided in an aperture region, whereby a structure for forming existing storage capacitance provided in a light-shielding region can be reduced in size.

Advantageous Effects of Invention

According to the present disclosure as described above, an aperture ratio can be improved.

Note that the above-described effect is not necessarily restrictive, and any one of effects described in the present specification or any another effect obtainable from the present specification may be exhibited in addition to or in place of the above-described effect.

