Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2017155957) CAPACITIVE SENSING IN AN LED DISPLAY
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/155957 International Application No.: PCT/US2017/021104
Publication Date: 14.09.2017 International Filing Date: 07.03.2017
IPC:
G09G 3/32 (2006.01)
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20
for 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
22
using controlled light sources
30
using electroluminescent panels
32
semiconductive, e.g. diodes
Applicants:
SYNAPTICS INCORPORATED [US/US]; 1251 McKay Drive San Jose, California 95131, US
Inventors:
REYNOLDS, Joseph, Kurth; US
MOREIN, Stephen, L.; US
Agent:
TABOADA, Keith; US
STEVENS, Joseph J.; US
Priority Data:
62/305,20908.03.2016US
Title (EN) CAPACITIVE SENSING IN AN LED DISPLAY
(FR) DÉTECTION CAPACITIVE DANS DISPOSITIF D'AFFICHAGE À DIODES ÉLECTROLUMINESCENTES
Abstract:
(EN) An example processing system for an integrated display and capacitive sensing device, where the display includes light-emitting diode (LED) pixels, is described. The processing system includes: isolated supply domains having inputs that receive an anode voltage and a cathode voltage, first outputs that supply modulated anode voltages, and second outputs that modulated cathode voltages, where the modulated anode voltages and the modulated cathode voltages are constant with respect to each other and modulated with respect to an external reference voltage; a multiplexer circuit having inputs coupled the isolated supply domains, the anode voltage, and the cathode voltage, and having outputs coupled to the LED pixels; and control logic configured to control the multiplexer circuit to selectively supply the anode voltage and the cathode voltage, or the modulated anode voltages and the modulated cathode voltages, to the LED pixels.
(FR) Cette invention concerne un système de traitement donné à titre d'exemple pour un dispositif d'affichage et de détection capacitive intégré, dans lequel le dispositif d'affichage comprend des pixels de diodes électroluminescentes (DEL). Le système de traitement comprend : des domaines d'alimentation isolés ayant des entrées qui reçoivent une tension d'anode et une tension de cathode, de premières sorties qui fournissent des tensions d'anode modulées, et de secondes sorties qui fournissent des tensions de cathode modulées, les tensions d'anode modulées et les tensions de cathode modulées étant constantes les unes par rapport aux autres et modulées par rapport à une tension de référence externe; un circuit multiplexeur ayant des entrées couplées aux domaines d'alimentation isolés, à la tension d'anode et à la tension de cathode, et ayant des sorties couplées aux pixels de DEL; et une logique de commande configurée pour commander le circuit multiplexeur pour fournir sélectivement la tension d'anode et la tension de cathode, ou les tensions d'anode modulées et les tensions de cathode modulées, aux pixels de DEL.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)