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Display device with touch panel functionality

A technology for display devices and touch panels, which is applied to identification devices, input/output processes of data processing, optics and other directions, can solve problems such as the reduction of the aperture ratio of the display area, and achieve the effect of avoiding and suppressing the reduction of the aperture ratio.

Inactive Publication Date: 2012-12-19
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case where the display area of ​​the display device is a type of display including openings and non-openings, that is, for example, liquid crystal display, etc., usually when some pressure sensors are installed in the display area, there is a problem that the display area is damaged due to the pressure sensor. The problem of the decrease of the aperture ratio

Method used

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  • Display device with touch panel functionality
  • Display device with touch panel functionality

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0123] figure 1 It is a circuit diagram schematically showing a circuit diagram of the liquid crystal display device 100 of the first embodiment. As that figure 1 As shown, the liquid crystal display device 100 includes a control unit 105 and a plurality of pixels 110 arranged in an array. The pixel 110 includes a plurality of TFT (Thin Film Transistor) elements 115 and a pixel electrode 114 connected to the TFT element 115.

[0124] The liquid crystal display device 100 includes: a gate wiring 112 and a gate wiring 113 for a sensor, which extend in a first direction and are arranged at intervals in the second direction; A plurality of source wirings 111 are arranged at intervals in the direction.

[0125] Each gate wiring 112 is connected to the gate driver 102, and each source wiring 111 is connected to the source driver 101. The gate wiring 113 for a sensor is arrange|positioned between the adjacent gate wiring 112, and it extends in a 1st direction, and is formed in plural at ...

Embodiment approach 2

[0232] use Figure 22 ~ Figure 26 The pressure sensor 118 and the liquid crystal display device 100 according to Embodiment 2 of the present invention will be described.

[0233] in Figure 22 to Figure 26 In the structure shown, there is a pair of Figure 1 to Figure 21 The same or equivalent structures shown are denoted by the same reference numerals and their descriptions are omitted.

[0234] Figure 22 This is a cross-sectional view of the liquid crystal display device 100 of the second embodiment, and is a cross-sectional view showing the TFT element 115. Figure 23 It is a cross-sectional view of the liquid crystal display device 100 of the second embodiment, and is a cross-sectional view of the output element 117.

[0235] As that Figure 22 with Figure 23 As shown, the liquid crystal display device 100 includes a TFT element 115 and an output element 117, and an interlayer insulating layer 135 is formed so as to cover the TFT element 115 and the output element 117.

[0236] T...

Embodiment approach 3

[0260] use Figure 27 ~ Figure 37 The manufacturing method of the pressure sensor 118, the liquid crystal display device 100, and the liquid crystal display device 100 according to Embodiment 3 of the present invention will be described. In addition, for Figure 27 to Figure 37 The structure shown and the above Figure 1 to Figure 26 The same or equivalent structures shown may be denoted by the same reference numerals and their descriptions may be omitted.

[0261] Figure 27 This is a cross-sectional view of the liquid crystal display device 100 of the third embodiment, and is a cross-sectional view showing the TFT element 115. Figure 28 It is a cross-sectional view of the liquid crystal display device 100 of the third embodiment, and is a cross-sectional view showing the pressure sensor 118.

[0262] As that Figure 27 As shown, the liquid crystal display device 100 includes: a base layer 141 formed on the main surface of a glass substrate 140; a base layer 131 formed on the uppe...

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Abstract

The disclosed display device with touch panel functionality has a display region comprising a first colour transmitting section which transmits a first colour, and a second colour transmitting section which transmits a second colour, and is provided, within a display region, with a pressure sensor (118) for detecting pushing force on the display region. Part or all of the pressure sensor (118) is a protruding section (70) which is a non-transmitting section that does not transmit light, and the first colour transmitting section and the second colour transmitting section are separated by the protruding section (70) which is a non-transmitting section.

Description

Technical field [0001] The invention relates to a display device with a touch panel function. Background technique [0002] In order to enable position input using a writing pen or a finger in the liquid crystal display device, a structure having a function of detecting the coordinates of the pressure point is being studied. As an example of this, a structure provided with a pressure detection element is described in Japanese Patent Application Laid-Open No. 11-271712 (Patent Document 1). [0003] The structure of using an electrostatic capacitive pressure sensor as an external touch panel is described in the technical paper "Touch Mode Capacitive Pressure Sensor" (Toshimoto Yamamoto et al., Fujikura Technical Review, No. 101, October 2001, pages 71-74) ( Non-Patent Document 1). [0004] Prior art literature [0005] Patent literature [0006] Patent Document 1: Japanese Patent Publication No. 11-271712 [0007] Non-patent literature [0008] Non-Patent Document 1: "Touch Mode Capaciti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G02F1/1333G02F1/1343G09F9/00G09F9/30
CPCG06F3/0412G06F3/0414G02F1/13338G06F3/0447G06F3/047
Inventor 木村知洋福山惠一
Owner SHARP KK
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