Ambient light sensing device and manufacturing method thereof, and display and manufacturing method thereof
A technology of a sensing device and a manufacturing method, applied to radiation control devices and other directions, can solve the problems of electrode damage, reduced reliability and mass production yield of ambient light sensing devices, etc.
Inactive Publication Date: 2010-12-08
AU OPTRONICS CORP
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Problems solved by technology
However, the manufacturing of the matrix substrate will be subject to multiple etching processes, which will easily damage the electrodes of the ambient light sensing device and reduce its reliability and mass production yield (yield).
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[0021] The manufacture and use of the embodiments of the present invention are described below. However, it can be easily understood that the embodiments provided in the present invention are only used to illustrate the making and use of the present invention in a specific way, and are not intended to limit the scope of the present invention.
[0022] Figure 1I and Figure 2B A schematic cross-sectional view of an ambient light sensing device according to different embodiments of the present invention is shown respectively. Please refer to Figure 1I , The ambient light sensing device includes: a substrate 100 , two electrodes 104 and 106 , an insulating layer 108 , a photosensitive layer 110 and two conductive layers 112 , 120 . In this embodiment, the ambient light sensing device can be installed in a display, such as a liquid crystal display. Furthermore, the substrate 100 can be the same substrate as the matrix substrate of the display, and its material includes: glas...
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The invention discloses an ambient light sensing device, which comprises a first electrode and a second electrode separately arranged on a base plate. An insulating layer is arranged on the base plate, partially covers the first electrode and the second electrode to respectively expose part of the upper surfaces of the first electrode and the second electrode, and a step height area is formed at the edge adjacent to the first electrode and the second electrode. A light sensitive layer is only arranged on the upper surface of the first electrode exposed by the insulating layer. A first conductive layer covers the light sensitive layer, the step height area of the insulting layer and the second electrode and is electrically connected with the second electrode. A second conductive layer covers the second electrode and the step height area of the insulating layer and contacts with the first conductive layer. The invention also discloses a method for manufacturing the ambient light sensingdevice, a display and a manufacturing method thereof.
Description
technical field [0001] The present invention relates to a flat display technology, in particular to an ambient light sensor device suitable for a flat display device. Background technique [0002] Flat-panel displays, such as liquid crystal displays (LCDs), have the characteristics of thin thickness, light weight, low power consumption, and low operating voltage, and have been widely used in electronic products such as portable personal computers, digital cameras, and projectors. , and occupy an important position in the flat panel display market. Generally speaking, LCDs can be classified into three types: transmissive, reflective and transflective. In the transmissive LCD, the backlight module needs to consume more power, which is not conducive to the application of some portable products with low power consumption. In reflective LCD and transflective LCD, external ambient light is used as the light source, so compared with transmissive LCD, less power consumption is req...
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IPC IPC(8): H01L27/144
Inventor 戴嘉骏沈佩谊吴智宏
Owner AU OPTRONICS CORP