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1. WO2021064518 - DISPLAY MODULE AND ELECTRONIC DEVICE

Publication Number WO/2021/064518
Publication Date 08.04.2021
International Application No. PCT/IB2020/058859
International Filing Date 23.09.2020
IPC
G09G 3/20 2006.01
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
G09G 3/3233 2016.01
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
22using controlled light sources
30using electroluminescent panels
32semiconductive, e.g. using light-emitting diodes
3208organic, e.g. using organic light-emitting diodes
3225using an active matrix
3233with pixel circuitry controlling the current through the light-emitting element
G09F 9/00 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
G09F 9/30 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30in which the desired character or characters are formed by combining individual elements
H01L 27/32 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
G06F 3/041 2006.01
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
CPC
G06F 3/041
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
G06F 3/042
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
042by opto-electronic means
G09F 9/00
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
G09F 9/30
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30in which the desired character or characters are formed by combining individual elements
G09G 3/20
GPHYSICS
09EDUCATION; 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 ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
G09G 3/3233
GPHYSICS
09EDUCATION; 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 ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
22using controlled light sources
30using electroluminescent panels
32semiconductive, e.g. using light-emitting diodes [LED]
3208organic, e.g. using organic light-emitting diodes [OLED]
3225using an active matrix
3233with pixel circuitry controlling the current through the light-emitting element
Applicants
  • 株式会社半導体エネルギー研究所 SEMICONDUCTOR ENERGY LABORATORY CO., LTD. [JP]/[JP]
Inventors
  • 高橋圭 TAKAHASHI, Kei
  • 小林英智 KOBAYASHI, Hidetomo
Priority Data
2019-18399904.10.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) DISPLAY MODULE AND ELECTRONIC DEVICE
(FR) MODULE D'AFFICHAGE ET DISPOSITIF ÉLECTRONIQUE
(JA) 表示モジュール、および電子機器
Abstract
(EN)
The present invention makes it possible to cut the common noise from light reception data. This display module includes a display device and a reading circuit. A first and a second pixel adjacent to each other in the display device include a light-receiving element and a light-emitting element. The reading circuit includes a differential input circuit. The common noise generated when, for example, display data is supplied to a light-emitting element may affect a first light reception signal output from the first pixel and a second light reception signal output from the second pixel. A first current is generated using the first light reception signal and a ramp signal, and a second current is generated using a second light receiving signal and a first potential. The differential input circuit is capable of removing common noise from the first light reception signal by means of control such that the first and second currents have the same current value.
(FR)
La présente invention permet de retirer le bruit commun dans des données de réception de lumière. Ce module d'affichage comprend un dispositif d'affichage et un circuit de lecture. Un premier et un second pixel adjacents l'un à l'autre dans le dispositif d'affichage comprennent un élément de réception de lumière et un élément électroluminescent. Le circuit de lecture comprend un circuit d'entrée différentielle. Le bruit commun généré, par exemple, lorsque des données d'affichage sont fournies à un élément électroluminescent peut affecter un premier signal de réception de lumière émis par le premier pixel et un second signal de réception de lumière émis par le second pixel. Un premier courant est généré à l'aide du premier signal de réception de lumière et d'un signal de rampe, et un second courant est généré à l'aide d'un second signal de réception de lumière et d'un premier potentiel. Le circuit d'entrée différentielle est capable d'éliminer le bruit commun du premier signal de réception de lumière au moyen d'une commande telle que les premier et second courants ont la même valeur de courant.
(JA)
受光データからコモンノイズを低減する。 表示装置と、読み出し回路と、を有する表示モジュールである。表示装置の隣り合う第1の画素および第2の画素は、受光素子および発光素子を有する。読み出し回路は、差動入力回路を有する。発光素子に表示データを与える場合などに発生するコモンノイズは、第1の画素が出力する第1の受光信号および第2の画素が出力する第2の受光信号に影響を与えることがある。第1の電流は、第1の受光信号およびランプ信号を用いて生成され、第2の電流は、第2の受光信号および第1の電位を用いて生成される。差動入力回路は、第1の電流と、第2の電流と、の電流値が同じになるように制御されることで第1の受光信号からコモンノイズを除去することができる。
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