摘要:
A connector unit is connectable to a printed circuit board (“PCB”) and includes a first connector and a second connector. The first connector includes a first connector body having a receiving hole at one side, and a first terminal part disposed inside the receiving hole. The second connector includes a second connector body, and first and second fixing protrusions. The second connector body has a second terminal part formed at a first side. The second terminal part is inserted in the receiving hole, and is electrically connected to the first terminal part. First and second fixing protrusions are disposed at top and bottom surfaces of the second connector body, and are fixed to upper and lower edges of the receiving hole.
摘要:
A gray voltage generation circuit for driving a liquid crystal display rapidly outputs an altered gray voltage so that a source driving circuit can charge liquid crystal capacitors constructed in a liquid crystal panel in a short period of time. In response to the gray voltages from the gray voltage generation circuit, while driving a positive polarity, the source driving circuit generates a liquid crystal driving voltage of higher level than the existing liquid crystal driving voltage when applying a gate clock signal of high level, and generates a liquid crystal driving voltage of a level similar to the existing liquid crystal driving voltage when applying a gate clock signal of low level. And, while driving a negative polarity, the source driving circuit generates a liquid crystal driving voltage of lower level than an existing liquid crystal driving voltage when applying a gate clock signal of high level, and generates a liquid crystal driving voltage of a level similar to the existing liquid crystal driving voltage when applying a gate clock signal of low level.
摘要:
A gray voltage generation circuit for driving a liquid crystal display rapidly outputs an altered gray voltage so that a source driving circuit can charge liquid crystal capacitors constructed in a liquid crystal panel in a short period of time. In response to the gray voltages from the gray voltage generation circuit, while driving a positive polarity, the source driving circuit generates a liquid crystal driving voltage of higher level than the existing liquid crystal driving voltage when applying a gate clock signal of high level, and generates a liquid crystal driving voltage of a level similar to the existing liquid crystal driving voltage when applying a gate clock signal of low level. And, while driving a negative polarity, the source driving circuit generates a liquid crystal driving voltage of lower level than an existing liquid crystal driving voltage when applying a gate clock signal of high level, and generates a liquid crystal driving voltage of a level similar to the existing liquid crystal driving voltage when applying a gate clock signal of low level.
摘要:
A display device includes a display panel which includes a plurality of pixels in a matrix form, an image signal comparator which compares image signals corresponding to at least two successive frames and increases a count value if a proportion of the image signals that are the same as each other exceeds a preset critical value, and a panel driver which drives the display panel to display a non-image signal on at least a part of the display panel during at least one frame if the count value reaches a preset instruction value.
摘要:
A driver and a driving method of a display device that includes a signal controller that processes image data input from an external circuit and a memory that is connected to the signal controller, wherein the signal controller includes a data converter that converts the image data and outputs the converted image data to the memory, and the data converter includes a data output unit that converts and outputs the image data and a data input unit that restores the image data input from the memory. Accordingly, the number of data transitions between the signal controller and the memory can be minimized to reduce current consumption and to reduce EMI.
摘要:
A display device includes a display panel which includes a plurality of pixels in a matrix form, an image signal comparator which compares image signals corresponding to at least two successive frames and increases a count value if a proportion of the image signals that are the same as each other exceeds a preset critical value, and a panel driver which drives the display panel to display a non-image signal on at least a part of the display panel during at least one frame if the count value reaches a preset instruction value.
摘要:
In a flexible printed circuit board and a liquid crystal display, the liquid crystal display includes a flexible printed circuit board electrically connecting a liquid crystal display panel that displays an image and a driving circuit board that outputs a driving signal. The flexible printed circuit board includes a base film, an insulating layer and a signal line disposed between the base film and the insulating layer. The base film or the insulating layer includes an opening formed therethrough. Also, the flexible printed circuit board includes a deformation prevention member by cutting-away an end thereof so as to prevent heat deformation of the flexible printed circuit board. Thus, the liquid crystal display may have reduced size and improved assembly efficiency.
摘要:
A light-emitting diode (“LED”) package includes a light-emitting chip, a case, first and second lead frames and a dummy lead frame. The light-emitting chip generates light. The case includes a bottom portion and a plurality of sidewalls, wherein the light-emitting chip is positioned in the case. The first and second lead frames are spaced apart from each other and are electrically connected to the light-emitting chip. The dummy lead frame is spaced apart from the light-emitting chip and the first and second lead frames, and is electrically isolated from the light-emitting chip and the first and second lead frames. The dummy lead frame is used as a wiring for connecting the LED package to another LED package, so that the number of signal wirings or a length of a signal wiring may be decreased, and a manufacturing cost of the LED package may be reduced.
摘要:
A connector unit is connectable to a printed circuit board (“PCB”) and includes a first connector and a second connector. The first connector includes a first connector body having a receiving hole at one side, and a first terminal part disposed inside the receiving hole. The second connector includes a second connector body, and first and second fixing protrusions. The second connector body has a second terminal part formed at a first side. The second terminal part is inserted in the receiving hole, and is electrically connected to the first terminal part. First and second fixing protrusions are disposed at top and bottom surfaces of the second connector body, and are fixed to upper and lower edges of the receiving hole.
摘要:
In a flexible printed circuit board and a liquid crystal display, the liquid crystal display includes a flexible printed circuit board electrically connecting a liquid crystal display panel that displays an image and a driving circuit board that outputs a driving signal. The flexible printed circuit board includes a base film, an insulating layer and a signal line disposed between the base film and the insulating layer. The base film or the insulating layer includes an opening formed therethrough. Also, the flexible printed circuit board includes a deformation prevention member by cutting-away an end thereof so as to prevent heat deformation of the flexible printed circuit board. Thus, the liquid crystal display may have reduced size and improved assembly efficiency.