WO2014001335A1 - Module d'affichage équipé d'un module de commande tactile - Google Patents

Module d'affichage équipé d'un module de commande tactile Download PDF

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Publication number
WO2014001335A1
WO2014001335A1 PCT/EP2013/063281 EP2013063281W WO2014001335A1 WO 2014001335 A1 WO2014001335 A1 WO 2014001335A1 EP 2013063281 W EP2013063281 W EP 2013063281W WO 2014001335 A1 WO2014001335 A1 WO 2014001335A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
high voltage
display unit
display
coupled
Prior art date
Application number
PCT/EP2013/063281
Other languages
German (de)
English (en)
Inventor
Marc Rawer
Jan Faber
Original Assignee
Johnson Controls Automotive Electronics Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johnson Controls Automotive Electronics Gmbh filed Critical Johnson Controls Automotive Electronics Gmbh
Priority to EP13732888.6A priority Critical patent/EP2867753A1/fr
Publication of WO2014001335A1 publication Critical patent/WO2014001335A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display

Definitions

  • the invention relates to a display unit with a touch control unit according to the features of the preamble of claim 1.
  • Display units formed as liquid crystal displays, so-called LC displays (Liquid Crystal Display LCD), are well known.
  • Tactile displays based on transistor-controlled liquid crystal displays are also known and produce a sharp image. Such displays usually have to detect
  • Tastcontroller on, in addition to a microprocessor comprises a high voltage generator for row control and an analog / digital converter for column detection or vice versa.
  • High-voltage generator is part of an I / O controller, a so-called GPIO (General Purpose I / O Controller) of the Tastcontroller, which charges capacitors of the touch panel with a voltage of 18 V to 25 V at a current of less than 5 mA.
  • GPIO General Purpose I / O Controller
  • the control of the display and the touch detection can be realized.
  • the electrode is coupled to a display control circuit and to a touch detection circuit.
  • US 2010/0039419 A1 discloses a display unit with a pixel electrode and a transistor for controlling the pixels.
  • the object of the present invention is to specify a display unit with an improved touch control unit.
  • the object is achieved by a display unit with a Tastkontrollmaschine with the features of claim 1.
  • a display unit is designed in particular as a capacitive display unit and has a Tastkontrolliki on the input side, a multiplexer and an analog-to-digital converter, which with a
  • the Central unit of the Tastkontrolliser is coupled comprises.
  • the multiplexer has a number of electrical inputs and serves the
  • the multiplexer can be used as an alternative to
  • the Tastkontrollech a serial input and output interface, which with an external
  • High voltage unit for column control of the display unit is coupled.
  • the invention is based on the consideration that the capacitors of the display unit for touch detection of one and the same
  • High voltage unit can be charged, are controlled by the transistors of the display unit.
  • the high-voltage unit is designed as an external unit and thus separately from the Tastcontroller.
  • the tactile control unit is preferably a conventional one
  • Microprocessor in particular as a low-voltage microprocessor, designed for low voltage with a low voltage range of less than 5V.
  • manufacturing costs are significantly reduced for a.
  • the high voltage unit in an advantageous embodiment is operable in a high voltage range of greater than 18 V, for example in a range of 18 V to 25 V, the capacitors may be charged with high voltage in the range of 18 V or higher at a current of 5 mA is. This results in a better signal-to-noise ratio for the touch detection of the display unit.
  • High voltage unit at least one high-voltage shift register for column control of the display unit, which is coupled to the Tastkontrollü and with a high voltage generator.
  • the high voltage shift register is clocked and controlled by the touch control unit and supplied by the high voltage generator.
  • the external high voltage unit has a
  • a serial / parallel converter for column control of the display unit which is coupled to the Tastkontrollmaschine and the high voltage generator.
  • the high-voltage shift register or the serial / parallel converter has two inputs on the input side, one of the Terminals for receiving a clock signal and the other for receiving a data signal is formed, which emits on the output side in a number of electrical outputs, which are preferably parallel. The number of outputs depends on the size of the display unit.
  • the display unit is as a
  • Liquid crystal display in particular as a liquid crystal display based on transistor control, formed, which allows the generation of a perceived as high quality image.
  • the single figure shows a schematic representation of a
  • touch-sensitive display unit 1 hereinafter referred to as display 1.
  • the display 1 is a liquid crystal display, in particular a
  • the display is designed as a TFT display with an operating device, preferably a so-called touch panel.
  • the display 1 is designed with a microprocessor
  • Tastcontroller 2 coupled.
  • the Tastcontroller 2 is designed as a conventional low-voltage integrated microprocessor in a low voltage range of less than 5 V.
  • On the input side comprises the Tastcontroller 2 for line detection of
  • Display 1 in particular the operating device, inputs E1 to Em, which open into a multiplexer 3, the an analog-to-digital converter. 4 is followed, the digital output signals of a central unit 5 are supplied.
  • the sense controller 2 On the output side, the sense controller 2 has a serial input / output interface 6, which is coupled to an external high voltage unit 7 for line control of the display 1.
  • the external high-voltage unit 7 has a high-voltage shift register 8, in which a clock signal T and serial data D of the Tastcontrollers 2 for column control of a
  • Touch detection sensor open.
  • a plurality of parallel outputs A1 to An are coupled to the display 1 for column control of the operating device.
  • the number of outputs A1 to An is variable and depends in particular on the size of the display 1.
  • the external high voltage unit 7 has a
  • Triggering of the transistors of the display 1 is coupled in the high voltage range.
  • High voltage unit 7 operates in a high voltage range VGH greater than +18 V, in particular +22 V or for example in a range of +18 V to +25 V or +20 V to +25 V.
  • a serial / parallel converter may be provided instead of a shift register 8.
  • the high voltage generator 9 may be part of the shift register 8 or the serial / parallel converter, so that they are formed as an integrated unit and the external
  • High voltage unit 7 form a structural unit. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

L'invention concerne un module d'affichage (1) équipé d'un module de commande tactile (2) qui comprend côté entrée un multiplexeur (3) et un convertisseur analogique/numérique (4) couplé à une unité centrale (5) du module de commande tactile (2). Selon l'invention, le module de commande tactile (2) comporte une interface d'entrée/sortie en série (6) reliée à un module à haute tension (7) externe.
PCT/EP2013/063281 2012-06-27 2013-06-25 Module d'affichage équipé d'un module de commande tactile WO2014001335A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13732888.6A EP2867753A1 (fr) 2012-06-27 2013-06-25 Module d'affichage équipé d'un module de commande tactile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012012756 2012-06-27
DE102012012756.1 2012-06-27

Publications (1)

Publication Number Publication Date
WO2014001335A1 true WO2014001335A1 (fr) 2014-01-03

Family

ID=48741092

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/063281 WO2014001335A1 (fr) 2012-06-27 2013-06-25 Module d'affichage équipé d'un module de commande tactile

Country Status (2)

Country Link
EP (1) EP2867753A1 (fr)
WO (1) WO2014001335A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100039419A1 (en) 2008-08-12 2010-02-18 Tpo Display Corp. Display device, electronic apparatus and electronic system
US20110134076A1 (en) * 2009-06-29 2011-06-09 Sony Corporation Capacitive touch panel and display device with touch detection function
US20110187677A1 (en) * 2006-06-09 2011-08-04 Steve Porter Hotelling Segmented vcom
EP2463757A1 (fr) 2009-09-27 2012-06-13 Inferpoint Systems Limited Ecran d'affichage à commande tactile apte à supprimer un impact d'un signal d'affichage sur un écran d'affichage à commande tactile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110187677A1 (en) * 2006-06-09 2011-08-04 Steve Porter Hotelling Segmented vcom
US20100039419A1 (en) 2008-08-12 2010-02-18 Tpo Display Corp. Display device, electronic apparatus and electronic system
US20110134076A1 (en) * 2009-06-29 2011-06-09 Sony Corporation Capacitive touch panel and display device with touch detection function
EP2463757A1 (fr) 2009-09-27 2012-06-13 Inferpoint Systems Limited Ecran d'affichage à commande tactile apte à supprimer un impact d'un signal d'affichage sur un écran d'affichage à commande tactile

Also Published As

Publication number Publication date
EP2867753A1 (fr) 2015-05-06

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