Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Coordinate sensor, electronic device, display device, and light-receiving unit

一种光接收元件、传感器的技术，应用在辨认装置、光学、仪器等方向，能够解决使用制约、装置整体厚度大等问题

Inactive Publication Date: 2013-07-24
SHARP KK
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the thickness of the plate 230 cannot be formed thinner, so that it is limited in use, and when the above-mentioned coordinate sensor is used in a display device, the thickness of the entire device becomes large.

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
  • Coordinate sensor, electronic device, display device, and light-receiving unit
  • Coordinate sensor, electronic device, display device, and light-receiving unit
  • Coordinate sensor, electronic device, display device, and light-receiving unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0227] based on the following figure 1 (a) and (b)~ image 3 One embodiment of the present invention will be described.

[0228] In this embodiment, a coordinate sensor-integrated (touch panel-integrated) liquid crystal display device will be described as an example of an electronic device including a coordinate sensor. The liquid crystal display device described above has a coordinate sensor function (a touch panel function in this embodiment) as a coordinate input function.

[0229] figure 1 (a) is a cross-sectional view schematically showing a schematic configuration of a main part of the liquid crystal display device of the present embodiment, figure 1 (b) is a plan view schematically showing the schematic structure of the main part of the liquid crystal display device of the present embodiment, the principle of coordinate detection, and the output of a one-dimensional sensor array (hereinafter referred to as a line sensor).

[0230] Such as figure 1 As shown in (...

Embodiment approach 2

[0285] based on the following Figure 4 (a) and (b)~ Figure 7 (a) and (b), and Figure 25 Other embodiments of the present invention will be described. In addition, in this embodiment, differences from the above-mentioned first embodiment will be described, and components having the same functions as those in the above-mentioned first embodiment will be given the same reference numerals, and their description will be omitted.

[0286] In Embodiment 1 described above, the case where the counter substrate 22 is irradiated with light for coordinate position detection using the infrared LED 3 other than the backlight 30 has been described as an example. In the present embodiment, a case will be described in which the counter substrate 22 is irradiated with light for coordinate position detection from the back side of the liquid crystal panel 20 .

[0287] Figure 4 (a) is a cross-sectional view schematically showing a schematic configuration of a main part of the liquid cryst...

Embodiment approach 3

[0314] based on the following Figure 8 , and further describe other embodiments of the present invention. In addition, in this embodiment, differences from the first and second embodiments described above will be described, and components having the same functions as those in the first and second embodiments described above will be given the same reference numerals and their descriptions will be omitted.

[0315] In Embodiments 1 and 2 described above, the case where the coordinate sensor 10 (the line sensor 1 and the rectangular prism 2 ) is provided to face the end surface (edge ​​portion) of the counter substrate 22 has been described as an example. In this embodiment, a case where a coordinate sensor is provided to overlap with the counter substrate 22 will be described.

[0316] Figure 8 It is a cross-sectional view schematically showing a schematic configuration of a main part of the liquid crystal display device 40 of the present embodiment.

[0317] Such as Figu...

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

PropertyMeasurementUnit
refractive indexaaaaaaaaaa
Login to View More

Abstract

A coordinate sensor (10) includes at least two line sensors (1) that are disposed in x-axis and y-axis directions, and right-angle prisms (2) each of which changes a light path of light that has passed through an image display region of a liquid crystal panel (20). Each of the line sensors (1) is disposed outside the image display region and has a light-receiving surface (1a) parallel to an image display surface of the liquid crystal panel (20). The right angle prisms (2) cause light which travels in the x-axis and y-axis directions and which has passed through the image display region to be guided to the light-receiving surfaces (1a) of the line sensors (1). The coordinate sensor (10) receives the light which has thus passed through the image display region of the liquid crystal panel (20) so as to detect a coordinate, on the image display region, that is indicated by an object to be detected such as a finger. Consequently, a thin coordinate sensor that enables easy alignment with no reduction in aperture ratio and no restriction on operation speed can be realized at low cost.

Description

technical field [0001] The present invention relates to a coordinate sensor, an electronic device including the coordinate sensor, a display device, a coordinate sensor-integrated liquid crystal display device, and a light receiving unit that can be suitably used in the above-mentioned coordinate sensor, wherein the coordinate sensor transmits The light in the image display area of ​​the image display body detects the indicated coordinates of the detection target object in the image display area. Background technique [0002] Among display devices such as liquid crystal display devices, display devices with a touch panel are being developed that include a touch panel (coordinate sensor) function that detects the touch position when the surface of the panel is touched with a finger or an input pen. [0003] Conventionally, as such a display device with a touch panel, a display device using a touch panel of a so-called resistive film type, capacitive type, or the like has been...

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): G06F3/041G02F1/1333G02F1/13357G02F1/1343G06F3/042G09F9/00
CPCG06F2203/04109G06F3/0428G02F1/13338G06F3/0421
Inventor 浜田浩宫崎伸一野间干弘高滨健吾和田正一方志教和小田巧一水野之雄
Owner SHARP KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com