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1. EP3153946 - EMBEDDED TOUCHSCREEN AND DISPLAY DEVICE

Office European Patent Office
Application Number 14861119
Application Date 20.09.2014
Publication Number 3153946
Publication Date 12.04.2017
Publication Kind B1
IPC
G02F 1/1333
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
G02F 1/1343
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1343Electrodes
G06F 3/041
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
G06F 3/044
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
044by capacitive means
G09G 3/36
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
34by control of light from an independent source
36using liquid crystals
CPC
G02F 1/13338
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
13338Input devices, e.g. touch panels
G02F 2001/134372
G06F 3/0412
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
0412Digitisers structurally integrated in a display
G06F 3/04164
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
0416Control or interface arrangements specially adapted for digitisers
04164Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
G06F 3/04166
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
0416Control or interface arrangements specially adapted for digitisers
04166Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
G06F 3/0443
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
044by capacitive means
0443using a single layer of sensing electrodes
Applicants BOE TECHNOLOGY GROUP CO LTD
BEIJING BOE OPTOELECTRONICS TECH CO LTD
Inventors LIU YINGMING
DONG XUE
XUE HAILIN
WANG HAISHENG
WANG LEI
YANG SHENGJI
LIU HONGJUAN
Designated States
Title
(DE) EINGEBETTETER BERÜHRUNGSBILDSCHIRM UND ANZEIGEVORRICHTUNG
(EN) EMBEDDED TOUCHSCREEN AND DISPLAY DEVICE
(FR) ÉCRAN TACTILE ENCASTRÉ ET DISPOSITIF D'AFFICHAGE
Abstract
(EN)
An in-cell touch panel and a display device are disclosed. The in-cell touch panel comprises: an upper substrate (01) and a lower substrate (2) arranged opposite to each other, a plurality of mutually independent self-capacitance electrodes (03) arranged in the same layer, and a plurality of leads (05) configured to connect the self-capacitance electrodes (03) to a touch detection chip (04). The self-capacitance electrodes (03) and the plurality of leads (05) are arranged in different layers; an interlayer insulating layer (06) is disposed between the self-capacitance electrodes (03) and the leads (05); each self-capacitance electrode (03) is electrically connected with the lead (05) via a through hole running through the interlayer insulating layer (06); and the interlayer insulating layer is provided with recessed portions at overlapped areas of the self-capacitance electrodes and the leads other than the leads electrically connected with the self-capacitance electrodes. Therefore, the uniformity of display images of the touch panel can be improved.

(FR)
Écran tactile encastré et dispositif d'affichage. L'écran tactile encastré comporte un substrat supérieur (01) et un substrat inférieur (02) qui sont disposés face à face, des électrodes multiples (03) à capacitance mutuelle qui sont disposées dans une même couche et mutuellement indépendantes, et des conducteurs multiples (05) reliant les électrodes (03) à capacitance mutuelle à une puce (04) de détection de toucher. Les électrodes (03) à capacitance mutuelle et les conducteurs (05) sont disposés dans des couches différentes. Une couche (06) d'isolation inter-couches est disposée entre l'électrode (03) à capacitance mutuelle et les conducteurs (05). Les électrodes (03) à capacitance mutuelle sont reliées électriquement aux conducteurs (05) via des trous débouchants passant à travers la couche (06) d'isolation inter-couches. La couche d'isolation inter-couches est dotée de parties en retrait dans des régions où les électrodes à capacitance mutuelle se chevauchent avec les conducteurs autres que les conducteurs électriquement raccordés, accroissant ainsi l'uniformité des images affichées par l'écran tactile.