公开(公告)号：US08054249B2

公开(公告)日：2011-11-08

申请号：US12096595

申请日：2006-11-27

申请人： Yoon Ho Song ,  Dae Jun Kim ,  Jin Woo Jeong ,  Jin Ho Lee ,  Kwang Yong Kang

发明人： Yoon Ho Song ,  Dae Jun Kim ,  Jin Woo Jeong ,  Jin Ho Lee ,  Kwang Yong Kang

IPC分类号： G09G5/00

CPC分类号： H01J1/304 ,  G09G3/22 ,  H01J29/04 ,  H01J31/127 ,  H01J2201/319

摘要： Provided is a field emission display (FED) capable of driving on the basis of current and preventing leakage current caused by thin film transistors (TFTs). The FED includes: a plurality of unit pixels including an emission element in which cathode luminescence of a phosphor occurs and a TFT for driving the emission element; a current source for applying a scan signal to each unit pixel; and a voltage source for applying a data signal to each unit pixel. Here, the on-current of the current source is high enough to take care of the load resistance and capacitance of a scan row within a given writing time, and the off-current of the current source is so low that the electron emission of each pixel can be ignored. In addition, the pulse amplitude or pulse width of the data signal applied from the voltage source is changed, and thereby the gray scale of the display is represented.

摘要翻译： 提供了能够基于电流驱动并防止由薄膜晶体管（TFT）引起的漏电流的场致发射显示器（FED）。 FED包括：多个单位像素，包括其中发生荧光体的阴极发光的发射元件和用于驱动发光元件的TFT; 用于向每个单位像素施加扫描信号的电流源; 以及用于将数据信号施加到每个单位像素的电压源。 这里，电流源的导通电流足够高，以便在给定的写入时间内照顾扫描行的负载电阻和电容，并且电流源的截止电流非常低以致每个电流源的电子发射 像素可以忽略。 此外，改变从电压源施加的数据信号的脉冲幅度或脉冲宽度，从而表示显示器的灰度级。

公开(公告)号：US20110116603A1

公开(公告)日：2011-05-19

申请号：US12743496

申请日：2008-11-13

申请人： Dae Jun Kim ,  Yoon Ho Song ,  Jin Woo Jeong

发明人： Dae Jun Kim ,  Yoon Ho Song ,  Jin Woo Jeong

IPC分类号： H01J35/04

CPC分类号： H01J35/065 ,  H01J35/14 ,  H01J35/16 ,  H01J2235/062 ,  H01J2235/068 ,  H01J2235/087 ,  H01J2235/164 ,  H01J2235/186

摘要： A microminiature X-ray tube with a triode structure using a nano emitter is provided, which can increase a field emission region as much as possible by means of nano emitters fine-patterned in a cathode to not only increase an emission current per unit area as much as possible but secure high electrical characteristics, reliability, and structural stability by means of a cover and a bonding material. In addition, gate holes having a macro structure can be formed in the gate to promote electron beam focusing by means of the gate without using a separate focusing electrode and to prevent a leakage current from occurring on the gate. Further, an auxiliary electrode can be formed on a top or an inner surface of a cover applied for structural stability to further promote the electron beam focusing and to control the output amounts per individual X-ray tubes output according to current switching to be equal to each other.

摘要翻译： 提供了一种具有使用纳米发射极的三极管结构的微型X射线管，其可以通过在阴极中精细图案化的纳米发射体尽可能多地增加场发射区域，以便不仅增加每单位面积的发射电流 尽可能地通过盖和接合材料确保高的电气特性，可靠性和结构稳定性。 此外，可以在栅极中形成具有宏观结构的栅极孔，以通过栅极促进电子束聚焦，而不使用单独的聚焦电极并防止在栅极上发生漏电流。 此外，可以在用于结构稳定性的盖的顶表面或内表面上形成辅助电极，以进一步促进电子束聚焦，并且根据电流切换来控制每个X射线管输出的输出量等于 彼此。

公开(公告)号：US20080284314A1

公开(公告)日：2008-11-20

申请号：US12096595

申请日：2006-11-27

申请人： Yoon Ho Song ,  Dae Jun Kim ,  Jin Woo Jeong ,  Jin Ho Lee ,  Kwang Yong Kang

发明人： Yoon Ho Song ,  Dae Jun Kim ,  Jin Woo Jeong ,  Jin Ho Lee ,  Kwang Yong Kang

IPC分类号： H01J1/62 ,  G09G3/12 ,  G09G3/20

CPC分类号： H01J1/304 ,  G09G3/22 ,  H01J29/04 ,  H01J31/127 ,  H01J2201/319

摘要： Provided is a field emission display (FED) capable of driving on the basis of current and preventing leakage current caused by thin film transistors (TFTs). The FED includes: a plurality of unit pixels including an emission element in which cathode luminescence of a phosphor occurs and a TFT for driving the emission element; a current source for applying a scan signal to each unit pixel; and a voltage source for applying a data signal to each unit pixel. Here, the on-current of the current source is high enough to take care of the load resistance and capacitance of a scan row within a given writing time, and the off-current of the current source is so low that the electron emission of each pixel can be ignored. In addition, the pulse amplitude or pulse width of the data signal applied from the voltage source is changed, and thereby the gray scale of the display is represented.

摘要翻译： 提供了能够基于电流驱动并防止由薄膜晶体管（TFT）引起的漏电流的场致发射显示器（FED）。 FED包括：多个单位像素，包括其中发生荧光体的阴极发光的发射元件和用于驱动发光元件的TFT; 用于向每个单位像素施加扫描信号的电流源; 以及用于将数据信号施加到每个单位像素的电压源。 这里，电流源的导通电流足够高，以便在给定的写入时间内照顾扫描行的负载电阻和电容，并且电流源的截止电流非常低以致每个电流源的电子发射 像素可以忽略。 此外，改变从电压源施加的数据信号的脉冲幅度或脉冲宽度，从而表示显示器的灰度级。

公开(公告)号：US20100260321A1

公开(公告)日：2010-10-14

申请号：US12739204

申请日：2008-11-13

申请人： Dae Jun Kim ,  Yoon Ho Song ,  Jin Woo Jeong

发明人： Dae Jun Kim ,  Yoon Ho Song ,  Jin Woo Jeong

IPC分类号： H05G2/00

CPC分类号： H01J35/065 ,  H01J2235/068 ,  H05G1/70

摘要： A discretely addressable large-area X-ray system is provided. The large-area X-ray system can output a uniform flux of X-rays over a large area using discrete addressing operation of transistors connected to cathodes of electron emitters. Thus, when applied to a medical device, the system can minimize damage inflicted upon the human body because it enables effective imaging of only a desired specific portion of the body. Furthermore, the large-area X-ray system can be simply implemented by current switching using transistors. Thus, the system can be very easily applied to other applications.

摘要翻译： 提供了可离散寻址的大面积X射线系统。 大面积X射线系统可以使用连接到电子发射器的阴极的晶体管的离散寻址操作，在大面积上输出均匀的X射线通量。 因此，当应用于医疗装置时，系统可以最小化对人体的伤害，因为它仅能够对身体的所需特定部分进行有效成像。 此外，大面积X射线系统可以简单地通过使用晶体管的电流切换来实现。 因此，该系统可以非常容易地应用于其他应用。

公开(公告)号：US20100231119A1

公开(公告)日：2010-09-16

申请号：US12741253

申请日：2008-11-06

申请人： Dae Jun Kim ,  Yoon Ho Song ,  Jin Woo Jeong

发明人： Dae Jun Kim ,  Yoon Ho Song ,  Jin Woo Jeong

IPC分类号： H01J1/62

CPC分类号： H01J17/49 ,  H01J2329/0455

摘要： Provided is a field emission device (FED) capable of fine local dimming. In the FED, a cathode substrate is comprised of a plurality of cathode layers, and a plurality of interconnections are disposed on each of the cathode layers, so that fine local dimming is enabled using a plurality of cathode blocks without limiting the number of the cathode blocks. Also, since RC delays of the respective cathode blocks can be synchronized according to the design of the interconnections, current control signals can be simultaneously transmitted to the respective cathode blocks, thereby improving the characteristics of the FED.

摘要翻译： 提供能够进行精细局部调光的场发射装置（FED）。 在FED中，阴极基板由多个阴极层构成，并且在每个阴极层上设置多个互连，使得能够使用多个阴极块进行精细的局部调光，而不限制阴极的数量 块。 此外，由于各个阴极块的RC延迟可以根据互连的设计同步，所以可以将电流控制信号同时传输到各个阴极块，从而提高FED的特性。

公开(公告)号：US20100225225A1

公开(公告)日：2010-09-09

申请号：US12739190

申请日：2008-06-25

申请人： Jin Woo Jeong ,  Yoon Ho Song ,  Dae Jun Kim

发明人： Jin Woo Jeong ,  Yoon Ho Song ,  Dae Jun Kim

IPC分类号： H01J1/62 ,  H01J1/02 ,  H01J9/02

CPC分类号： G02F1/133602 ,  G02F2001/133601 ,  G02F2001/133625 ,  H01J63/02

摘要： Provided is a field emission device, and more particularly, a field emission back light unit which makes an interconnection connected with an external electrode simple and capable of local dimming. To this end, a cathode structure for the field emission back light unit includes a plurality of data electrodes formed on a cathode substrate and spaced apart from one another, an insulating layer formed on the data electrodes, and having exposure regions exposing the predetermined data electrodes, cathode electrodes formed on the insulating layer and electrically connected with the data electrodes through the exposure regions, and at least one field emitter formed on the cathode electrodes, wherein a cathode block is defined based on the cathode electrodes electrically isolated from one another, and brightness of each cathode block can be controlled according to current supplied through the data electrode.

摘要翻译： 本发明提供一种场发射装置，更具体地说，是使与外部电极连接的互连简单且能够进行局部调光的场致发射背光单元。 为此，用于场发射背光单元的阴极结构包括形成在阴极基板上并彼此间隔开的多个数据电极，形成在数据电极上的绝缘层，并且具有暴露预定数据电极的曝光区域 ，形成在绝缘层上并通过曝光区域与数据电极电连接的阴极电极和形成在阴极电极上的至少一个场致发射体，其中基于彼此电隔离的阴极电极来限定阴极块，以及 可以根据通过数据电极提供的电流来控制每个阴极块的亮度。

公开(公告)号：US20080299298A1

公开(公告)日：2008-12-04

申请号：US12094480

申请日：2006-12-01

申请人： Dae Jun Kim ,  Yoon Ho Song ,  Jin Woo Jeong

发明人： Dae Jun Kim ,  Yoon Ho Song ,  Jin Woo Jeong

IPC分类号： B05D5/12 ,  H01B1/24

CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C01B32/168 ,  C01B32/174 ,  H01B1/24 ,  H01J9/025

摘要： Provided are methods of manufacturing carbon nanotube (CNT) paste, to which a nano-sized particle is added, and a CNT emitter with high reliability for a field emission display (FED). The method includes the steps of: (i) dispersing CNT powder in a solvent; (ii) adding an organic binder to the solution in which the CNT powder is dispersed; and (iii) performing a milling process to adjust viscosity of the dispersion solution to which the organic binder is added, wherein a nano-sized metal particle is added in step (i) or (iii). Accordingly, the nano-sized metal particle is added as a metal filler of the CNT paste, and thus a metal may be melted at a low temperature at which CNTs do not deteriorate. Thus, adhesion between the CNT paste and a cathode may be improved, and resistance between the cathode and the CNT or between CNTs may be reduced. Further, the CNT paste manufactured by the above method is employed in manufacturing the CNT emitter to thereby obtain uniform emission of electrons from the CNT emitter and increase electron emission sites, and thus the reliability of the CNT emitter may be further improved.

摘要翻译： 提供了制造纳米尺寸颗粒的碳纳米管（CNT）浆料和用于场发射显示（FED）的具有高可靠性的CNT发射体的方法。 该方法包括以下步骤：（i）将CNT粉末分散在溶剂中; （ii）向其中分散有CNT粉末的溶液中加入有机粘合剂; 和（iii）进行研磨过程以调节添加有机粘合剂的分散液的粘度，其中在步骤（i）或（iii）中加入纳米尺寸的金属颗粒。 因此，纳米尺寸金属颗粒作为CNT浆料的金属填料添加，因此金属可以在不劣化CNT的低温下熔融。 因此，可以提高CNT浆料和阴极之间的粘附性，并且可以降低阴极和CNT之间或CNT之间的电阻。 此外，通过上述方法制造的CNT浆料用于制造CNT发射体，从而从CNT发射体获得均匀的电子发射并增加电子发射部位，从而可以进一步提高CNT发射体的可靠性。

公开(公告)号：US08093795B2

公开(公告)日：2012-01-10

申请号：US12739190

申请日：2008-06-25

申请人： Jin Woo Jeong ,  Yoon Ho Song ,  Dae Jun Kim

发明人： Jin Woo Jeong ,  Yoon Ho Song ,  Dae Jun Kim

IPC分类号： H01J1/62

CPC分类号： G02F1/133602 ,  G02F2001/133601 ,  G02F2001/133625 ,  H01J63/02

摘要： Provided is a field emission device, and more particularly, a field emission back light unit which makes an interconnection connected with an external electrode simple and capable of local dimming. To this end, a cathode structure for the field emission back light unit includes a plurality of data electrodes formed on a cathode substrate and spaced apart from one another, an insulating layer formed on the data electrodes, and having exposure regions exposing the predetermined data electrodes, cathode electrodes formed on the insulating layer and electrically connected with the data electrodes through the exposure regions, and at least one field emitter formed on the cathode electrodes, wherein a cathode block is defined based on the cathode electrodes electrically isolated from one another, and brightness of each cathode block can be controlled according to current supplied through the data electrode.

摘要翻译： 本发明提供一种场发射装置，更具体地说，是使与外部电极连接的互连简单且能够进行局部调光的场致发射背光单元。 为此，用于场发射背光单元的阴极结构包括形成在阴极基板上并彼此间隔开的多个数据电极，形成在数据电极上的绝缘层，并且具有暴露预定数据电极的曝光区域 ，形成在绝缘层上并通过曝光区域与数据电极电连接的阴极电极和形成在阴极电极上的至少一个场致发射体，其中基于彼此电隔离的阴极电极来限定阴极块，以及 可以根据通过数据电极提供的电流来控制每个阴极块的亮度。

公开(公告)号：US08018169B2

公开(公告)日：2011-09-13

申请号：US12279284

申请日：2007-03-27

申请人： Jin Woo Jeong ,  Yoon Ho Song ,  Dae Jun Kim

发明人： Jin Woo Jeong ,  Yoon Ho Song ,  Dae Jun Kim

IPC分类号： H01J1/30 ,  H01J1/304

CPC分类号： H01J1/304 ,  H01J63/06

摘要： Disclosed is a field emission device. The field emission device includes: an anode substrate including an anode electrode formed on a surface thereof and a fluorescent layer formed on the anode electrode; a cathode substrate disposed opposite to and spaced apart from the anode substrate, and including at least one cathode electrode formed toward the anode substrate and a field emitter formed on each cathode electrode; and a gate substrate having one surface in contact with the cathode substrate, wherein the gate substrate include gate insulators surrounding the field emitters and having a plurality of openings exposing the field emitters, and a plurality of gate electrodes formed on the gate insulators around the openings and electrically isolated from one another. Thus, when the trajectories of the electron beams emitted from the emitters are rapidly changed over time by a voltage difference between the gate electrodes, an electron beam-scanned area can be expanded due to residual images and the electron beam can be more uniformly emitted due to an electron beam scattering effect and a linear beam spreading effect, resulting in improved emission uniformity of the fluorescent layer.

摘要翻译： 公开了一种场致发射装置。 场致发射器件包括：阳极基板，包括形成在其表面上的阳极电极和形成在阳极电极上的荧光层; 阴极基板，设置成与阳极基板相对且间隔开，并且包括朝向阳极基板形成的至少一个阴极电极和形成在每个阴极电极上的场致发射体; 以及具有与所述阴极基板接触的一个表面的栅极基板，其中所述栅极基板包括围绕所述场致发射体的栅极绝缘体，并且具有暴露所述场致发射体的多个开口，以及形成在所述栅极绝缘体周围的所述开口 并彼此电隔离。 因此，当从发射器发射的电子束的轨迹随着时间的推移随着栅电极之间的电压差而快速变化时，电子束扫描区域可以由于残留图像而扩大，并且电子束可以更均匀地发射，因为 电子束散射效应和线性光束扩散效应，导致荧光层的发射均匀性得到改善。

公开(公告)号：US08390538B2

公开(公告)日：2013-03-05

申请号：US13244078

申请日：2011-09-23

申请人： Yoon Ho Song ,  Dae Jun Kim ,  Jin Woo Jeong ,  Jin Ho Lee ,  Kwang Yong Kang

发明人： Yoon Ho Song ,  Dae Jun Kim ,  Jin Woo Jeong ,  Jin Ho Lee ,  Kwang Yong Kang

IPC分类号： G09G5/00

CPC分类号： H01J1/304 ,  G09G3/22 ,  H01J29/04 ,  H01J31/127 ,  H01J2201/319

摘要： A field emission pixel includes a cathode on which a field emitter emitting electrons is formed, an anode on which a phosphor absorbing electrons from the field emitter is formed, and a thin film transistor (TFT) having a source connected to a current source in response to a scan signal, a gate receiving a data signal, and a drain connected to the field emitter. The field emitter is made of carbon material such as diamond, diamond like carbon, carbon nanotube or carbon nanofiber. The cathode may include multiple field emitters, and the TFT may include multiple transistors having gates to which the same signal is applied, sources to which the same signal is applied, and drains respectively connected to the field emitters. An active layer of the TFT is made of a semiconductor film such as amorphous silicon, micro-crystalline silicon, polycrystalline silicon, wide-band gap material like ZnO, or an organic semiconductor.

摘要翻译： 场发射像素包括其上形成有发射电子的场致发射体的阴极，形成从场致发射体吸收电子的荧光体的阳极以及响应于电流源的源极的薄膜晶体管（TFT） 扫描信号，接收数据信号的栅极和连接到场发射器的漏极。 场发射体由诸如金刚石，类金刚石碳，碳纳米管或碳​​纳米纤维的碳材料制成。 阴极可以包括多个场发射器，并且TFT可以包括多个晶体管，其具有施加相同信号的栅极，施加相同信号的源极以及分别连接到场发射极的漏极。 TFT的有源层由诸如非晶硅，微晶硅，多晶硅，宽带隙材料如ZnO的半导体膜或有机半导体制成。