Elena
Member
D-ILA (Direct-Drive ImageLightAmplifier) technology is a projection technology developed exclusively by JVC Japan, whose core component is a reflective active-matrix liquid crystal plate on silicon, also known as a reflective liquid crystal plate, so D-ILA technology is also known as reflective liquid crystal technology. The D-ILA technology shows technical advantages in providing high resolution and high contrast ratios. The aperture ratio of the LCD plate with D-ILA technology can be made up to 93%, and the projector with D-ILA technology can achieve higher brightness output by utilizing the light source more efficiently.
D-ILA technology has shown technical superiority in providing high resolution and high contrast ratios. In 2000, D-ILA technology projectors reached a nominal resolution of S-XGA (1365 × 1024) and a contrast ratio of 350:1. The 3.3 cm (1.3 inches) LCD panel, the core component of D-ILA technology, has a nominal resolution of QXGA ( 2048 × 1535).
The core component of D-ILA technology is the reflective active-matrix silicon liquid crystal plate, which is also commonly referred to as a reflective liquid crystal plate, so some people call D-ILA technology reflective liquid crystal technology. In transmissive LCD technology, the transistor, which is used as a pixel switch control, is placed at the corresponding position on the LCD plate. In the process of light transmission, the transistor itself blocks part of the light, so the light source of a projector using transmissive LCD technology is not used efficiently and it is difficult to achieve high brightness.
In D-ILA technology, the LCD board makes the transistor as the switching control unit of the pixel dot liquid crystal on a layer of the silicon substrate, and the silicon substrate (also called the reflective electrode layer) is located below the liquid crystal layer, and the various control electrodes for pixel address addressing and the insulating layer between electrodes are located below the silicon substrate, so the whole structure is a 3D three-dimensional arrangement.
The light from the light source cannot penetrate the reflective electrode layer, but is reflected by the reflective electrode layer, avoiding the blocking of light by the various structural layers below. As a result, the aperture ratio of D-ILA technology LCD panels can be 93% (88% for DMDs in DLP technology and 40%-60% for transmissive LCD panels), so projectors using D-ILA technology can utilize light sources more efficiently and achieve higher brightness output.
At the same time, because there is no need to install a control transistor on each pixel in the liquid crystal layer, all the area of the pixel is the effective display area, so it is possible to achieve a higher pixel density on the LCD board, that is, in the same size of the LCD board D-ILA technology can achieve higher resolution. Since the liquid crystal layer of D-ILA technology liquid crystal plate adopts voltage control adjustable birefringence method, the light in the fully open state is fully reflected with almost no loss, and the fully closed state type reflected output light is almost zero, so D-ILA can achieve very high contrast ratio, the current projector with D-ILA technology has a maximum contrast ratio up to 1000:1, and the next band of products will have a contrast ratio of more than 2000:1.
The core component of D-ILA technology is the reflective active-matrix silicon liquid crystal plate, which is also commonly referred to as a reflective liquid crystal plate, so some people call D-ILA technology reflective liquid crystal technology. In transmissive LCD technology, the transistor, which is used as a pixel switch control, is placed at the corresponding position on the LCD plate. In the process of light transmission, the transistor itself blocks part of the light, so the light source of a projector using transmissive LCD technology is not used efficiently and it is difficult to achieve high brightness.
In D-ILA technology, the LCD board makes the transistor as the switching control unit of the pixel dot liquid crystal on a layer of the silicon substrate, and the silicon substrate (also called the reflective electrode layer) is located below the liquid crystal layer, and the various control electrodes for pixel address addressing and the insulating layer between electrodes are located below the silicon substrate, so the whole structure is a 3D three-dimensional arrangement.
The light from the light source cannot penetrate the reflective electrode layer, but is reflected by the reflective electrode layer, avoiding the blocking of light by the various structural layers below. As a result, the aperture ratio of D-ILA technology LCD panels can be 93% (88% for DMDs in DLP technology and 40%-60% for transmissive LCD panels), so projectors using D-ILA technology can utilize light sources more efficiently and achieve higher brightness output.
At the same time, because there is no need to install a control transistor on each pixel in the liquid crystal layer, all the area of the pixel is the effective display area, so it is possible to achieve a higher pixel density on the LCD board, that is, in the same size of the LCD board D-ILA technology can achieve higher resolution. Since the liquid crystal layer of D-ILA technology liquid crystal plate adopts voltage control adjustable birefringence method, the light in the fully open state is fully reflected with almost no loss, and the fully closed state type reflected output light is almost zero, so D-ILA can achieve very high contrast ratio, the current projector with D-ILA technology has a maximum contrast ratio up to 1000:1, and the next band of products will have a contrast ratio of more than 2000:1.
