baber/WOPTO huggingface dataset:
Patent KR-20070032599-A (KR)
Title: Multi-direction under-cut module for mold
IPC: B29C45/44
Filed: 2005-09-16
Abstract: A multi-direction under-cut module for a mold is provided to make the under-cut module small by optionally operating one or both of first and second shape sliding cores with an operation unit. A multi-direction under-cut module for a mold comprises an operation unit(30) moving forward and backward, and having a guide pin(32) extended in a forward and backward direction, a slide penetration unit(34) inclined by a predetermined angle for the extension direction of the guide pin, and a guide slot(36) crossing at right angle with the slide penetration unit; a first shape slide core(20) provided with a pin moving hole(22) wherein the guide pin penetrates to be selectively communicated with the operation unit, and a core penetration hole(23) formed in the same slope angle with the slide penetration unit, and a first external appearance forming unit(21) forming a part of an external appearance of a product; and a second shape slide core(24) formed to perforate the slide penetration unit and the core penetration hole, provided with one end horizontally perforated by a hinge pin(28) positioned at the guide slot, and a second external appearance forming unit(26) forming a part of the product at the front. An inner diameter of the core penetration hole has a size wherein the second shape slide core moves, and an inner diameter of the slide penetration unit is relatively wider than an diameter of the second shape slide core whereby the second shape slide core communicates with the operation unit, and moves in a longitudinal direction of the core penetration hole and the slide penetration unit, simultaneously communicates with the operation unit and the first shape slide core, and moves in the same direction with the operation unit.
Patent KR-20070037927-A (KR)
Inventor: CHOE SOO HWAN
IPC: G02F1/1345
Filed: 2005-10-04
Abstract: 액정표시장치가 제공된다. 본 발명의 일실시예에 따른 액정표시장치는, 다수의 게이트 라인과 다수의 데이터 라인이 교차하는 영역에 2차원적으로 배열된 다수의 단위 화소를 구비하는 액정표시패널, 다수의 게이트 라인에 순차적으로 게이트 신호를 공급하는 게이트 구동부 및 게이트 신호에 동기되어(synchronized) 데이터 라인에 데이터 신호를 공급하며 상면에 돌출 패턴이 형성된 데이터 구동부를 포함한다.  
       
     액정표시장치, 데이터 구동부, 게이트 구동부, 돌출 패턴, 냉각
Patent KR-20070041195-A (KR)
Inventor: JUNG KEE JOONG
IPC: H04M3/02
Filed: 2005-10-14
Abstract: 발신자가 설정한 링 소리를 착신자와 통화시 또는 문자 전송시에 착신 단말에서 울리게 할 수 있는 수신 링 소리 제공 방법 및 그 시스템이 개시되어 있다. 방법은 a) 발신 단말이 통화를 요청하는 경우, 상기 발신 단말의 전화 번호 및 착신 단말의 전화 번호에 대응하게 저장된 수신 링 소리용 오디오 데이터를 상기 착신 단말에 제공하는 단계; 및 b) 상기 오디오 데이터의 상기 착신 단말로의 제공이 완료되는 경우, 상기 발신 단말 및 상기 착신 단말 사이에의 통화를 시도하는 단계를 포함하며, 상기 착신 단말은 상기 통화를 위한 링 소리에 상기 오디오 데이터를 이용하는 것을 특징으로 한다. 
       
     링, 수신, 오디오
Patent KR-20070046557-A (KR)
Inventor: YUN WON IL
IPC: B60C15/00
Filed: 2005-10-31
Abstract: 본 발명은 공기입 타이어의 비드부에 노면으로부터 발생된 충격이 가해지는 것을 완화시키기 위하여 비드부의 비드링에 경고무층을 삽입하여 구성된 완충형 비드링 구조를 갖는 타이어에 관한 것이다. 
     본 발명에 따른 완충형 비드링구조를 갖는 타이어는 비드링(10)과 에이펙스 필러(20)가 결합하여 구성된 비드부에 있어서, 도 2에 도시된 바 처럼 비드링(10)를 다수의 와이어 코어(1)를 적층하여 구성함에 있어서 단면을 대각선으로 나누어 두 개의 삼각부분(10a, 10b)으로 분할하여 구성하되 두 삼각부분이 접하는 부분에 판상의 경고무층(11)을 형성하되 비드링을 따라 환형으로 배치시키고, 상기 경고무층(11)의 두께는 비드링을 구성하는 하나의 와아어 코어(1)의 직경에 대하여 1.5~2배의 길이를 갖도록 함에 그 특징이 있다.
Patent KR-20070052531-A (KR)
Inventor: JI JUN DONG
IPC: F25C5/02
Filed: 2005-11-17
Abstract: 본 발명은 냉장고에 설치되어 얼음 덩어리를 보관하다가 이를 작은 덩어리로 부수는 파쇄기 또는 가루로 된 얼음으로 가공하는 빙수기 및 가공하지 않은 상태로 그대로 사용자에게 소정량씩 적절히 공급하는 얼음 공급기에 관한 것이다. 
     본 발명의 공급기는, 상면이 개방된 소정 내용적의 그릇으로 되는 데크와, 상기 데크 내에 설치되어 회전력으로 수납된 얼음을 일측으로 밀어내는 스쿠류와, 상기 스쿠류에 의하여 얼음이 밀려지는 방향에 형성되는 상기 데크의 개구부인 토출구로 이루어지는 공급기에 있어서, 상기 스쿠류의 축이 상기 토출구를 관통하여 연장되는 연장축을 형성하고, 상기 연장축의 원주방향으로 형성되는 안내판과, 상기 안내판의 중심부에서 안내판을 지지하는 허브로 되는 공급가드가 상기 토출구를 관통하여 연장되는 상기 스쿠류의 연장축에 설치된 것임을 특징으로 한다. 
     따라서, 본 발명은 장치 전체의 규격을 컴펙트화 하여 경제적이면서도 손쉽게 장착할 수 있도록 하며, 특히 공급되는 각 얼음을 정확히 계량하여 적량씩만 공급되도록 하여 다른 장치에 부담이 없도록 함으로서 그들 장치의 수명을 보장할 수 있도록 하는 유용하고 효과적인 발명이다. 
       
     공급기, 자동 공급기, 얼음 공급기, 아이스박스
Patent KR-20070055046-A (KR)
Inventor: KIM JOON HEE
IPC: B60N2/42
Filed: 2005-11-25
Abstract: 본 발명은 차량의 2열 시트를 분할 구성함에 있어 서로 분할 구성되어 있는 차량의 2열 시트를 연결하는 보강 구조를 설치하여 시트의 일측으로 하중이 집중 인가되어도 시트의 변형이 감소되도록 하는 차량의 2열 시트 보강 구조에 관한 것으로서, 차량의 2열 시트에 있어서, 플레이트 형태로 형성되고 일단부에는 수직으로 힌지바(20)가 설치되고 분할 구성되어 있는 2열 시트의 일측 시트 프레임에 고정되는 삽입 플레이트(10), 육면체 형태로 형성되어 일단부가 2열 시트의 일측 시트 프레임에 고정되고 내측으로는 상기 삽입 플레이트(10)가 삽입 이동하는 이동 공간부가 형성되어 있는 고정 플레이트(30)로 구성된다.  
       
     차량 시트, 2열 시트
Patent KR-20070055898-A (KR)
Inventor: LEE WON JUN
IPC: H01L21/205
Filed: 2005-11-28
Abstract: 본 발명은 실리콘 박막의 원자층 증착 방법에 관한 것으로, 특히 실리콘 전구체와 플라즈마를 반응관 내부로 교대로 공급함으로써, 500℃ 미만의 온도에서도 실리콘 박막을 형성할 수 있고, 원자층 증착을 반복적으로 수행함으로써 원하는 두께의 실리콘 박막을 증착할 수 있는 실리콘 박막의 원자층 증착 방법에 관한 것이다. 
     본 발명의 실리콘 박막의 원자층 증착 방법을 이루는 구성수단은, 기판을 반응관 내로 유입한 후, 상기 반응관 내부를 소정의 압력과 온도로 유지한 상태에서 실리콘(Si) 전구체를 공급하여 반응시키는 제1 단계, 상기 반응관 내부에 반응하지 않고 잔존하는 실리콘(Si) 전구체 및 반응 부산물을 제거하기 위하여 펌핑 및 퍼지를 수행하는 제2 단계, 상기 기판 표면에 흡착된 실리콘(Si) 전구체를 환원시켜 고체 실리콘(Si)을 형성하기 위하여 환원성 플라즈마를 상기 반응관 내부로 공급하는 제3 단계. 상기 반응관 내부에 반응하지 않고 잔존하는 각 종 이온 및 반응 부산물을 제거하기 위하여 펌핑 및 퍼지를 수행하는 제4 단계를 포함하여 이루어진 것을 특징으로 한다. 
       
     원자층, 결정질, 실리콘 박막
Patent KR-20070056762-A (KR)
Title: Plasma display panel
Inventor: KWEON TAE JOUNG
IPC: H01J11/38
Filed: 2005-11-30
Abstract: A plasma display panel is provided to drop an addressing voltage by reducing the amount of current applied to address electrodes. A first and a second substrates(1,3) are disposed opposite to each other. A plurality of barrier ribs(5) are arranged in a space between the first and the second substrates in order to define discharge spaces. A plurality of phosphor layers are formed within the discharge spaces. A plurality of address electrodes(13) are formed along address lines on the second substrate. A second dielectric layer(15) is formed on the second substrate in order to cover the address electrodes. A plurality of display electrodes are formed across the address electrodes on the first substrate. At least one pair of display electrodes is formed opposite to each other within each of the discharge spaces. A first dielectric layer(17) is formed on the first substrate in order to cover the display electrodes. The barrier ribs include one or more smokeless glass compositions which are selected from a group including ZnO, B2O3, Al2O3, SiO2, SnO, P2O5, Sb2O3, and Bi2O3.
Patent KR-20060001878-A (KR)
Inventor: TAKAMINE YUICHI
IPC: H03H9/00
Filed: 2005-12-01
Abstract: 본 발명은 평형-불평형 변환 기능을 가지며, 평형도가 우수한 5IDT형의 세로결합 공진자형의 탄성표면파 장치를 제공하는 것을 목적으로 한다.  
     본 발명의 탄성표면파 장치의 구성에 따르면, IDT형의 평형-불평형 변환 기능을 갖는 세로결합 공진자형의 탄성표면파 필터 장치로서, 중앙에 위치하는 빗형 전극부가 탄성표면파 전파 방향으로 분할함으로써 형성되는 제1, 제2 분할 전극부(110, 111)를 가지며, 제1, 제2 분할 전극부(110, 111)가 제1, 제2 평형 단자(108, 109)에 접속되어 있고, 중앙에 위치하는 빗형 전극부의 양측에 위치하고 있는 2개의 빗형 전극부 중에서 한쪽의 빗형 전극부가 다른쪽의 빗형 전극부에 반전되어 있으며, 중앙의 빗형 전극부의 양측의 2개의 빗형 전극부가 불평형 신호 단자(107)에 접속되어 있고, 표면파 전파 방향에 있어서 서로 이웃하는 한쪽의 빗형 전극부의 상기 갭측 단부 및 다른쪽의 빗형 전극부의 상기 갭측 단부에 각각 협피치 전극지부(電極指部)가 형성되어 있다.  
       
     탄성표면파 장치, 불평형 신호 단자, 평형 신호 단자, 빗형 전극부
Patent KR-20070065140-A (KR)
Title: Structure of preventing laundry from falling for a drum washing machine
Inventor: SONG WEON JIN
IPC: D06F39/00
Filed: 2005-12-19
Abstract: A structure for preventing laundry from falling in a drum type washing machine is provided to position the laundry on a planar frame of a laundry falling preventing unit even when the laundry is pulled out. A structure for preventing laundry from falling in a drum type washing machine includes a manipulation section, a door, and a laundry falling preventing unit. A signal for operating various functions is input to the manipulation section. The door is rotatably installed by a hinge coupling section to open and close the interior of a washing tub. The laundry falling preventing unit is slidably installed on the lower side of the door and appears to the front side according to the signal transmitted from the manipulation section. The laundry falling preventing unit includes a planar frame(20) and a worm(32).
Patent KR-20070065632-A (KR)
Title: Writing condition optimizing method and apparatus, and information recording medium
Inventor: BAE JAE CHEOL
IPC: G11B7/125
Filed: 2005-12-20
Abstract: A method and an apparatus for optimizing a recording condition, and an optical recording medium are provided to efficiently optimize the recording condition of an optical recording medium as a high-density information storage medium in which a zero-crossing detection method can not be used. Data is recorded on an optical recording medium by using a test repeat recording pattern(312). A correct pattern binary signal obtained by the test repeat recording pattern is compared with an erroneous pattern binary signal detected by reproduction of the data recorded on the optical recording medium(314). Based on a result of the comparison, an optimum recording condition of the optical recording medium is determined. If detection results of the erroneous pattern binary signal and the correct pattern binary signal are equal to each other, a recording condition of the recorded data is determined as the optimum recording condition.
Patent KR-20070065176-A (KR)
Inventor: LEE JEONG MIN
IPC: B65D81/32
Filed: 2005-12-19
Abstract: A discharge device for containing different kinds of materials is provided to drop the contents of a storage space into a space part of a container by opening an opening and closing hole by pushing an opening and closing hole closing part with the internal pressure of the container generated in pressing the container. The discharge device(1) for containing different kinds of materials is composed of a body(10) joined to a container(100) and a containing part(20) assembled in the body. The body comprises an upside part(11), a side part(12), and a part formed inside to join the containing part. The containing part has an inner storage space(21). An opening and closing hole(22) is formed at the bottom side of the containing part to open the contents of the storage space and stopped up by an opening and closing hole closing part(23). The upside of the storage space of the containing part filled with the contents is closed up by an upper closing part(24) and then the containing part is combined to the body. The bottom side of the containing part is made of thin films and a cut line is formed to break the thin film by pressure.
Patent KR-20070066594-A (KR)
Title: Indoor unit of picture frame type air-conditioner
Inventor: KIM JIN WON
IPC: F24F13/18
Filed: 2005-12-22
Abstract: An indoor unit of an air conditioner is provided to open a frame panel by rotating the same in the horizontal direction and in the vertical direction, thereby simplifying exchange of filters mounted to a front panel by simply separating a service cover. An indoor unit of an air conditioner includes a cabinet(10), and a frame panel(30) hinge-coupled with a front surface of the cabinet in a multiple-folding structure. The cabinet is mounted with a front panel(20) at the front surface and the frame panel is hinge-coupled with the front panel. A filter(60) is mounted to the front panel to be positioned between the frame panel and the front panel, and detachably mounted with a service cover. The frame panel has a base part(32) coupled with the front panel by a first hinge unit(70) for rotating in the left and right direction, and a frame part(34) connected to the base part by a second hinge unit(90) for rotating in the right and left direction.
Patent KR-20070068089-A (KR)
Title: Apparatus and method for drying semiconductor substrates
Inventor: WOO JAE YOUNG
IPC: H01L21/304
Filed: 2005-12-26
Abstract: An apparatus for drying a semiconductor substrate is provided to prevent external particles from being introduced into a dry region in a process chamber by protecting the dry region by interception gas. A process chamber(100) is composed of a bath(130) and a cover for opening/shutting the upper part of the bath wherein a semiconductor substrate is received in the bath in which a dry process is performed. A cooling member(400) cools dry gas transferring to the upper part of the bath, installed in the upper part of the bath. An interception gas supply member(500) supplies interception gas to prevent the dry gas from flowing to the outside of the bath wherein the interception gas forms an interception layer on the cooling member in the bath. A robot arm vertically transfers a substrate to be dried to the inside and outside of the bath, positioned on the process chamber.
Patent KR-20050033614-A (KR)
Title: Anisotropic conductivity connector, conductive paste composition, probe member, wafer inspecting device, and wafer inspecting method
Inventor: SETAKA RYOJI
IPC: G01R1/073
Filed: 2003-08-07
Abstract: An anisotropic conductivity connector wherein, even if the pitches between electrodes to be connected are small, the conductivity of all the connection conductive sections are favorable and insulation between adjacent connection conductive sections is reliably achieved, and the favorable conductivity can be maintained for a long term even if the connector is used repetitively in a high- temperature environment, and its application are disclosed. The connector comprises elastic anisotropic conductive films having connection conductive sections containing conductive particles and extending in the direction of thickness. The connector is characterized in that, letting the shortest width of the connection conductive sections be W and the number average particle size of the conductive particles be Dn, the ratio W/Dn of the shortest width to the number average particle size ranges from 3 to 8, and the variation factor of the particle size of the conductive particles is 50% or less.
Patent KR-20050030642-A (KR)
Title: Sputtering target
Inventor: ENDO SHIGEKI
IPC: C23C14/34
Filed: 2003-07-17
Abstract: A sputtering target which is formed from a material comprising silicon carbide and silicon, and has a volume percentage of silicon carbide of 50 to 70 %, wherein the volume percentage of silicon carbide is represented by the formula: volume percentage of silicon carbide (%) = total volume of silicon carbide/(total volume of silicon carbide + total volume of silicon) X 100. The sputtering target allows the adjustment over a widened range of the refractive index of the resultant coating layer through the control of the flow rate of an oxygen gas or a nitrogen gas or the control of the electric power to be infused.
Patent KR-20050056986-A (KR)
Inventor: TSCHUMI JOHANNES
IPC: C07C33/048
Filed: 2003-08-09
Abstract: A process for the manufacture of an acetylenically unsaturated alcohol comprising reacting formaldehyde, an aldehyde or a ketone (a carbonyl compound) with acetylene in the presence of ammonia and an alkali metal hydroxide, the molar ratio of the alkali metal hydroxide to the carbonyl compound being less than 1 : 200. The reaction products, which depending on the starting carbonyl compound are propargyl alcohol or 1- monosubstituted or 1,1-disubstituted derivatives thereof, are of use as intermediates in the synthesis of many useful end products, inter alia in the field of vitamins and carotenoids.
Patent KR-20050062562-A (KR)
Title: Novel adenine compound and use thereof
Inventor: ISOBE YOSHIAKI
IPC: A61P17/00
Filed: 2003-09-26
Abstract: A drug for topical administration which is effective as an antiallergic agent. The drug for topical administration contains as an active ingredient either an adenine compound represented by the general formula (1): (1) [wherein ring A represents a 6- to 10-membered, mono- or bicyclic, aromatic carbocycle or a 5- to 10-membered, mono- or bicyclic, aromatic heterocycle containing one to three heteroatoms selected among zero to two nitrogen atoms, zero or one oxygen atom, and zero or one sulfur atom; n is an integer of 0 to 2; m is an integer of 0 to 2; R represents halogeno, (un)substituted alkyl, etc.; X1 represents oxygen, sulfur, NR1 (R 1 represents hydrogen or alkyl), or a single bond; Y1 represents a single bond, alkylene, etc.; Y2 represents a single bond, alkylene, etc.; Z represents alkylene; and at least either of Q1 and Q2 represents -COOR10 (wherein R10 represents (un)substituted alkyl, etc.), etc.] or a pharmaceutically acceptable salt of the compound.
Patent KR-20050067399-A (KR)
Title: Propane measurement using a coriolis flowmeter
Inventor: BUTTLER MARC ALLAN
IPC: G01F15/02
Filed: 2003-08-21
Abstract: A method of delivering propane to a customer (202) is disclosed. A transport vehicle (200) transports the propane to the customer (202). The transport vehicle (200) delivers the propane from the transport vehicle (200) to the customer (202). A Coriolis flowmeter (212) measures a mass flow rate of the propane as transport vehicle (200) delivers the propane to the customer (202). The Coriolis flowmeter (212) determines a gross volume of the propane based on the mass flow rate of the propane. The Coriolis flowmeter (212) also determines an adjusted volume of the propane based on the mass flow rate and a constant value. The constant value corresponds to a density of propane at a reference temperature.
Patent KR-20050061527-A (KR)
Title: Heparin-derived polysaccharide mixtures, preparation thereof and pharmaceutical compositions containing same
Inventor: BIBERVIC VESNA
IPC: A61P7/02
Filed: 2003-10-08
Abstract: The invention concerns heparin-derived polysaccharide mixtures having an average molecular weight of 1500 to 3000 daltons and an anti-Xa/anti- IIa ratio higher than 30, their preparation method and pharmaceutical compositions containing same.
Patent KR-20050055789-A (KR)
Title: Daily melatonin dosing units
Inventor: SCHMID HANS W
IPC: A61Q7/00
Filed: 2003-10-30
Abstract: The invention relates to a single-use container for a topically applied medicament or cosmetic agent, comprising a single dose of melatonin or a melatonin derivative, which corresponds to a locally effective dose but does not have any systemic effect.
Patent KR-20050085070-A (KR)
Title: Method for coating a catalyst carrier containing two different partial structures with a catalytically active coating, and catalyst obtained thereby
Inventor: DOMESLE RAINER
IPC: B01J37/02
Filed: 2003-11-04
Abstract: The invention relates to a method for coating a catalyst carrier with a catalytically active coating by means of a coating dispersion, said catalyst carrier containing at least two partial structures which differ in terms of the capacity thereof for absorbing the coating dispersion. The inventive method is characterised in that the absorbency of each partial structure is changed by pre-coating the catalyst carrier with a burnt off material or a liquid, and the catalytic coating is then applied to the filter body, dried and/or calcinated in a known manner.
Patent KR-20050084260-A (KR)
Title: Gas pressure driven fluid pump having compression spring pivot mechanism and damping system
Inventor: DUKES JON W
IPC: F04F1/02
Filed: 2003-12-10
Abstract: A gas pressure driven fluid pump (10) having a pump tank (12) with a liquid inlet and a liquid outlet (34). A float assembly (14) is carried within the interior of the pump tank and is movable between a low level position and a high level position. A compression spring (22) is connected between the float assembly and a pivot member (24). Due to the force applied by the compression spring, the pivot member rotates to a first position when the float reaches its high level position and rotates to a second position when the float reaches its low level position. A valve assembly (78) is connected to said pivot member to switch between motive porting and exhaust porting in a snap over fashion due to rotation of said pivot member between said first position and said second position. A damper system (82) may be connected to the valve assembly to slow movement of the valve assembly between motive porting and exhaust porting.
Patent KR-20050084394-A (KR)
Inventor: AVINASH GOPAL B
IPC: G16H70/00
Filed: 2003-11-13
Abstract: Techniques are provided for processing in vitro test sample data. The in vitro test sample data is accessed and additional data may be accessed, such as from an integrated knowledge base (12), from a plurality of controllable and prescribable data resources (40). Analysis (440; 448) of the data is performed, such as via an automated computer-assisted data operating algorithm (22) to identify features of interest available or possibly available from the in vitro test data. Processes (446; 454; 458; 460) are performed, either on the data or upon an in vitro sample based upon the analysis. Results of the processing may include acquisition (438) of additional test samples, modification (444; 452) of processing of test samples or of sample data, and so forth.
Patent KR-20050093838-A (KR)
Title: Conjugates obtained by reductive amination of serotype 5 pneumococcus capsular polysaccharide
Inventor: MISTRETTA NOELLE
IPC: C08B37/00
Filed: 2004-01-16
Abstract: The invention relates to conjugates obtained by reductive amination of serotype 5 pneumococcus capsular polysaccharide. The reductive amination conditions differ from conventional conditions in that they avoid the creation of an undesired compound which is harmful to the immunogenicity of the conjugates. In carbon NMR spectrometry, the undesired compound is characterized by a resonance signal of 13 -14 ppm. The aminated polysaccharides involved in the production of the conjugates have a carbon NMR spectrum devoid of a resonance signal of 13 -14 ppm. The reductive amination conditions according to the invention are twofold. According to a first method, the reductive amination is performed at a pH which is slightly acidic (4-6, 5) for a maximum of 4 hours. According to a second method, the polysaccharide is initially reduced, then fragmented and finally undergoes the reductive amination per se in conventional or unconventional conditions. According to the method used, the structure of the aminated polysaccharide can vary (conversion or not of the Sug residue of the repeater unit into N-acetyl quinovosamine and N-acetyl fucosamine) but said variations, as recorded in carbon NMR spectrometry, have no effect on immunogenicity.
Patent KR-20050105992-A (KR)
Title: Polyethylene composition for the production of peroxide crosslinked polyethylene
Inventor: PALMLOEF MAGNUS
IPC: C08J3/24
Filed: 2003-01-30
Abstract: The invention relates to a polyethylene composition for the production of peroxide crosslinked polyethylene and a method for the production thereof. The invention further relates to the use of such a polymer composition and to a peroxide crosslinked polyethylene pipe made from the polyethylene composition.
Patent KR-20050098916-A (KR)
Title: An optically addressable matrix display
Inventor: SALTERS BART A
IPC: G06F3/033
Filed: 2004-01-29
Abstract: A matrix display comprises a matrix of optically addressable pixels (Pij). The pixels (Pij) comprise a light sensitive element (LSij) having a state depending on a brightness of control light (Lj) impinging on it. The pixels (Pij) further comprise a pixel light generating element (LGij) for generating pixel light (LMij) with a brightness depending on the state of the light sensitive element (LSij). The matrix display device comprises a sheet of transparent material (TS) positioned in front of the matrix of pixels (Pij), and a light source (LS) which couples source light into a side of the sheet of transparent material (TS). In use, the source light is substantially totally internally reflected in said sheet (TS). The control light (Lj) leaves the sheet (TS) at positions where the sheet (TS) is locally disturbed. This control light switches or changes the brightness of the pixels (Pij) at these positions, or provides touch position information.