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Display device and display device substrate

A technology for display devices and substrates, applied in identification devices, oxide conductors, instruments, etc., can solve the problems of undisclosed display devices with light-emitting layers, undisclosed copper alloy composition, etc., and achieve good touch sensing function and high image quality Effect

Active Publication Date: 2019-03-15
TOPPAN PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a display device including a light-emitting layer and an active element made of an oxide semiconductor is not disclosed.
Furthermore, the structure in which copper alloys and silver alloys are sandwiched by conductive metal oxides is not disclosed.

Method used

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  • Display device and display device substrate
  • Display device and display device substrate
  • Display device and display device substrate

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0061] (Functional configuration of display device DSP1)

[0062] Below, refer to Figure 1 to Figure 9 The display device DSP1 according to the first embodiment of the present invention will be described.

[0063] figure 1 It is a block diagram showing a control unit and a display unit constituting the display device DSP1 according to the first embodiment of the present invention.

[0064] The control unit 120 has a known configuration and includes a video signal control unit 121 (first control unit), a touch sensor control unit 122 (second control unit), and a system control unit 123 (third control unit).

[0065] The video signal control unit 121 controls image display on the display unit 110 . Specifically, the video signal control unit 121 controls the light emission of the light emitting layer 92 sandwiched between the upper electrode and the lower electrode by controlling the voltage (pixel driving voltage) supplied between the upper electrode and the lower electrod...

no. 2 Embodiment approach

[0212] Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.

[0213] In the second embodiment, the same reference numerals are assigned to the same components as those in the first embodiment, and descriptions thereof are omitted or simplified.

[0214] Figure 10 It is a cross-sectional view partially showing the display device DSP2 according to the second embodiment of the present invention. In the display device DSP2, organic EL is used as a display function layer (light emitting layer).

[0215] The counter substrate 300 constituting the display device DSP2 of the second embodiment includes a transparent substrate 42 having a first surface F and a second surface S opposite to the first surface F. On the second surface S, a plurality of first touch sensor lines 1 are provided. On the first surface F, a plurality of second touch sensor lines 2 are provided. That is, the second touch-sensing wiring 2 is located between...

no. 3 Embodiment approach

[0222] Hereinafter, a third embodiment of the present invention will be described with reference to the drawings.

[0223] In the third embodiment, the same reference numerals are assigned to the same components as those in the first embodiment and the second embodiment, and descriptions thereof are omitted or simplified.

[0224] Figure 11 It is a cross-sectional view partially showing the display device DSP3 according to the third embodiment of the present invention.

[0225] The counter substrate 500 constituting the display device DSP3 of the third embodiment includes a transparent substrate 44 having a first surface F and a second surface S opposite to the first surface F. No touch sensing wiring is provided on the second surface S. On the first face F, in the viewing direction OB (refer to Image 6 , a direction opposite to the Z direction), a plurality of first touch-sensing wirings 1 and a plurality of second touch-sensing wirings 2 are sequentially formed. That i...

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Abstract

This display device includes: an array substrate provided with an electrode having a structure in which a silver or silver-alloy layer is sandwiched by conductive metal oxide layers, a light-emittinglayer for emitting light with a drive voltage applied from the electrode, and an active element having a channel layer in contact with a gate insulating layer and constructed with an oxide semiconductor and the light-emitting layer; a transparent substrate facing the array substrate; a display device substrate having a structure in which a black layer and a conductive layer are laminated in orderin an observation direction and provided with a plurality of first touch sensing wirings and a plurality of second touch sensing wirings intersecting each other at right angles in a plan view, and pixels demarcated by the first touch sensing wirings and the second touch sensing wirings in a plan view; and a control unit for performing touch sensing.

Description

technical field [0001] The present invention relates to a display device and a display device substrate with a light-emitting layer including an organic electroluminescent material or LED, and in particular to a display device with a touch sensing function and a display device substrate for the display device. Background technique [0002] In recent years, liquid crystal display devices or display devices in which light-emitting elements are arranged in a matrix (organic electroluminescent display devices or LED matrix display devices) have improved in resolution and become thinner. In addition, there are commercially available mobile devices, such as smartphones, tablets, etc., equipped with display devices that have a screen size of 5 inches or 8 inches and can realize high image quality. In particular, organic electroluminescent display devices (hereinafter referred to as organic EL) can contribute to the thinning of such mobile devices. [0003] In an organic EL display...

Claims

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Application Information

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IPC IPC(8): G06F3/041G09F9/00G09F9/30H01L27/32
CPCG06F3/041G09F9/00G09F9/30H10K59/8792G06F3/0412H01B1/08H01L27/156H10K59/38H10K59/40
Inventor 白石淳一福吉健蔵
Owner TOPPAN PRINTING CO LTD