Display and electronic apparatus

A display device and display circuit technology, which is applied to identification devices, static indicators, electrical digital data processing, etc., can solve the problems of difficulty in reducing size and high cost, and achieve S/N improvement, impact reduction, and noise reduction. Effect

Inactive Publication Date: 2010-03-31
JAPAN DISPLAY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, a display device provided with such a coordinate input function as described above is difficult to downsize and costs more than ordinary display devices

Method used

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  • Display and electronic apparatus
  • Display and electronic apparatus
  • Display and electronic apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0127] Figure 4 is a simplified sectional view of the light receiving unit portion according to the first embodiment of the present invention.

[0128] like Figure 4 As shown, the light receiving unit 22 is formed on the substrate surface 231 side of the TFT substrate 23 formed by using a transparent insulating substrate (for example, a glass substrate). As described above, the light receiving unit 22 includes the reading circuit and the light receiving element (photosensor) 221 .

[0129] The liquid crystal layer 25 is enclosed between the TFT substrate 23 and the opposite substrate 24 formed by using a relatively transparent insulating substrate (for example, a glass substrate). In addition, for example, a backlight 26 is placed on the bottom surface 232 side of the TFT substrate 23 .

[0130] In addition, a first polarizing plate 27 on the back side (lower side) is formed on the bottom surface 232 of the TFT substrate 23, and a second polarizing plate 28 on the front s...

no. 2 example

[0157] Figure 10 is a simplified sectional view of a light receiving unit portion according to a second embodiment of the present invention.

[0158] Figure 11 is a graph showing the spectrum of backlight light used in the second embodiment.

[0159] Figure 12 is a graph showing the spectral refractive index obtained by the antireflection treatment in the second embodiment.

[0160] Figure 13A and Figure 13B The structure and manufacturing process of the antireflection layer according to the second embodiment are shown.

[0161] In the second embodiment, as Figure 11 As shown, the backlight 26A emits light in the visible region and the infrared region, and as Figure 12 As shown, the anti-reflection layer 29A has been or has been subjected to an anti-reflection treatment optimized for light in the range from the visible region to the infrared region. Here, the infrared region means a region with a wavelength of not less than 700 nm.

[0162] like Figure 13B As...

no. 3 example

[0171] Figure 15 is a simplified sectional view of a light receiving unit portion according to a third embodiment of the present invention.

[0172] Figure 16 is a graph showing the spectral reflectance obtained by the antireflection treatment in the third embodiment.

[0173] Figure 17A ~ Figure 17D The structure and manufacturing process of the antireflection layer according to the third embodiment are shown.

[0174] In the third embodiment, a transparent protective cover (front-side transparent substrate) 31 is placed on the front side of the polarizing plate 28 with a filling layer 30 therebetween, and an anti-reflection layer 32 is placed between the front side of the protective cover 31 and the air layer at the interface.

[0175] In the third embodiment, such as Image 6 As shown, the backlight emits light in the visible region, and as Figure 16 As shown, the anti-reflection layer 32 has been or has been subjected to an anti-reflection treatment optimized for...

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PUM

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Abstract

A display is provided. The display includes at least one display cell having a display circuit; at least one light receiving cell including a light receiving element; a light emitting section operative to radiate light to the side of a display surface; and at least one transparent plate disposed on the front side in the display relative to a region in which the light emitting section is disposed and regions in which the display cell and the light receiving cell are formed, wherein an antireflection layer is formed on a most face-side surface of the display.

Description

[0001] Cross-References to Related Art [0002] The present invention contains subject matter of Japanese Patent Applications JP 2007-317704 and JP 2008-242785 filed in the Japan Patent Office on December 7, 2007 and September 22, 2008, respectively, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to a display device provided with a light emitting element in a display pixel portion or on an architrave-like frame thereof. Background technique [0004] Several technologies of a display device itself provided with a coordinate input function have been proposed. [0005] Specifically, for example, a display device of a pressure-sensitive type touch panel system (see Japanese Patent Laid-Open No. 2002-149085 and Japanese Patent Laid-Open No. 2002-41244), a display device of an electromagnetic induction type touch panel system (see Japanese Patent Laid-Open No. Publication No. Hei11-134105) and the like. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/30G06F3/041G06F3/042G02F1/1333G02F1/1335
CPCG06F3/0412G06F3/042G02F1/133502G09G2360/148
Inventor 高间大辅关健太
Owner JAPAN DISPLAY INC
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