Check patentability & draft patents in minutes with Patsnap Eureka AI!

Photodetector and display device provided with same

A light detection device and photodiode technology, which is applied in optics, photovoltaic power generation, nonlinear optics, etc., can solve the problems of difficulty in adjusting the brightness of the display screen and difficulty in high image quality.

Active Publication Date: 2011-05-18
SHARP KK
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, it is difficult to adjust the brightness of the display screen using the optical sensor and obtain high-quality images.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Photodetector and display device provided with same
  • Photodetector and display device provided with same
  • Photodetector and display device provided with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0034] Below, refer to Figure 1 to Figure 11 A photodetection device and a display device according to an embodiment of the present invention will be described. First, the schematic configurations of the photodetection device and the display device of the present embodiment will be described. figure 1 It is a cross-sectional view showing a schematic configuration of a photodetection device according to an embodiment of the present invention. figure 2 means viewing from above figure 1 A plan view of the state of the photodetection device shown. image 3 is a brief representation of having figure 1 Plan view of the structure of a part of the display device of the light detection device shown. Among them, in figure 1 In , only the conductors and semiconductors constituting the active matrix substrate 20 to be described later are hatched. Furthermore, in figure 2 and image 3 In , only the main structural elements are shown in the figure.

[0035] like figure 1 As ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

It is an object to provide a photodetector that can be configured to suppress dispersion of output characteristics among photodiodes and a display device provided with the photodetector. A display device provided with an active matrix substrate (20) that has a light transmissive base substrate (2), a plurality of active elements and a photodetector is used in an embodiment. The photodetector is comprised of a light shielding film (3) formed on the base substrate (2) and a photodiode (1) arranged on the upper layer of the light shielding film (3). The light shielding film (3) is overlapped with the photodiode (1) in the depth direction of the base substrate (2). The photodiode (1) is provided with a silicon film (11) that is electrically isolated from the light shielding film (3). A p-layer (11c), an i-layer (11b) and an n-layer (11a) are arranged to be adjacent to each other in the plane direction in the silicon film (11). The area (length (Lp)) of the p-layer (11c) is formed to be larger than that (length (Ln)) of the n-layer (11a).

Description

technical field [0001] The present invention relates to a light detection device and a display device having the same. Background technique [0002] In recent years, in display devices typified by liquid crystal display devices, photosensors are mounted in order to automatically adjust the brightness of a display screen according to the intensity of light around the display device. In addition, a display device in which a plurality of photosensors are arranged in a matrix is ​​also known. In this display device, a plurality of photosensors operate as one area sensor, and acquire an image on the viewer's side. [0003] Mounting the photosensor on the display device can be performed by mounting the photosensor as a discrete component on the display panel. In addition, the photosensor can also be integrally formed on the active matrix substrate by the formation process of an active element (TFT) or a peripheral circuit. [0004] Among them, in the field of display devices fo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/10G02F1/133G02F1/135
CPCY02E10/50H01L31/02164G02F1/1362H01L31/105G02F1/136209H01L31/02165H01L31/035281G02F2001/13312G02F1/13318G02F1/13312
Inventor C·布朗加藤浩巳
Owner SHARP KK
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com