摘要:
A COF tape is formed by orderly connecting several COFs and a carrier connected with said COF tape. The appearance of said COF is a trapezoid consisting of two paralleled wiring edges and two unparalleled side edges. The longer wiring edge of one COF and the shorter wiring edge of the other COF between the two adjacent COFs are connected and lie in a same straight line; the shorter wiring edges and the longer wiring edges of the other two COFs also lie in a same straight line. The disclosure also discloses a COF and a drive circuit for liquid crystal display television. The COF of the disclosure saves materials; the carrier-tape type semiconductor device with the COF of the disclosure is able to increase the quantity of COF on the carrier tape of specific length, so that the cost can be lowered to a large extent.
摘要:
The present disclosure discloses a COF (Chip On Film), the plane shape of which is a non-orthogonal parallelogram. The present disclosure further discloses a COF carrier tape, which includes a COF tape formed by orderly connecting several COF and a carrier connected with said COF tape. The plane shape of said COF is a non-orthogonal parallelogram. Said COF includes two paralleled wiring edges, and the two adjacent wiring edges of said COF are mutually connected. The present disclosure also discloses a drive circuit for liquid crystal display television. With the COF wiring number increased, the wiring intervals of the present disclosure remain unchanged. When the wiring number of COF are no longer increased, the lengths of the wiring edges can be shortened if the intervals remain unchanged; as a result, the total area of COF can reduced so that the cost can be effectively lowered.
摘要翻译:本公开公开了一种COF(Chip On Film),其平面形状是非正交的平行四边形。 本公开进一步公开了一种COF载带,其包括通过有序地连接几个COF和与所述COF带连接的载体形成的COF带。 所述COF的平面形状是非正交平行四边形。 所述COF包括两个平行的布线边缘,并且所述COF的两个相邻布线边缘相互连接。 本公开还公开了一种用于液晶显示电视的驱动电路。 随着COF布线数量的增加,本公开的布线间隔保持不变。 当COF的接线数不再增加时,如果间隔保持不变,则可以缩短布线边缘的长度; 因此,可以减少COF的总面积,从而可以有效降低成本。
摘要:
A control circuit includes a power supply, a control IC, a liquid crystal panel, a driving integrated chip arranged between the control IC and the liquid crystal panel, and a number of voltage adjusting sub-circuits. The driving integrated chip includes a plurality of output ports for outputting a plurality of driving voltages respectively. Each voltage adjusting sub-circuit is arranged between the corresponding output port of the driving integrated chip and the liquid crystal panel for adjusting an initial value the voltage outputted from the corresponding output port before the driving voltage is transferred to the liquid crystal panel. With the voltage adjusting sub-circuits, the driving voltages received by the liquid crystal panel have the same value to avoid the color deviation of the images displayed in the liquid crystal panel. This improves the display effect of the liquid crystal panel under without increasing the layout area.
摘要:
An output compensation circuit and an output compensation method for an LCD data drive IC as well as an LCD comprising the same are disclosed. The output compensation circuit comprises a data drive IC, a plurality of first switch units and a plurality of delay control units. A plurality of output channels of the data drive IC each are connected with a corresponding row of pixel electrodes on a glass substrate via a data line respectively to output a charging signal. Each of the first switch units control the corresponding output channel according to a delay control signal generated by the corresponding delay control unit. Each of the delay control units is configured to generate the delay control signal-used to control the first switch unit to be turned on after a predetermined delay so that the charging time is the same for all the pixel electrodes.
摘要:
An output compensation circuit and an output compensation method for an LCD data drive IC as well as an LCD comprising the same are disclosed. The output compensation circuit comprises a data drive IC, a plurality of first switch units and a plurality of delay control units. A plurality of output channels of the data drive IC each are connected with a corresponding row of pixel electrodes on a glass substrate via a data line respectively to output a charging signal. Each of the first switch units control the corresponding output channel according to a delay control signal generated by the corresponding delay control unit. Each of the delay control units is configured to generate the delay control signal-used to control the first switch unit to be turned on after a predetermined delay so that the charging time is the same for all the pixel electrodes.
摘要:
A control circuit includes a power supply, a control IC, a liquid crystal panel, a driving integrated chip arranged between the control IC and the liquid crystal panel, and a number of voltage adjusting sub-circuits. The driving integrated chip includes a plurality of output ports for outputting a plurality of driving voltages respectively. Each voltage adjusting sub-circuit is arranged between the corresponding output port of the driving integrated chip and the liquid crystal panel for adjusting an initial value the voltage outputted from the corresponding output port before the driving voltage is transferred to the liquid crystal panel. With the voltage adjusting sub-circuits, the driving voltages received by the liquid crystal panel have the same value to avoid the color deviation of the images displayed in the liquid crystal panel. This improves the display effect of the liquid crystal panel under without increasing the layout area.
摘要:
A light emitting diode (LED) dimming drive device, an LED dimming drive method and a liquid crystal display (LCD) are disclosed. The LED dimming drive device comprises a plurality of dimming control circuits each comprising one dimmer switch and a delay setting circuit for setting a different delay time for each dimming control circuits. Each of the dimming control circuits further comprises a clock delay circuit for receiving a pulse width modulation (PWM) signal, timing according to the delay time, and outputting the PWM signal to the dimmer switch when the delay time expires. Different delay times can be used to control the output of PWM signals and further control the on or off of the dimmer switches. This can avoid the noises or electromagnetic (EM) interferences occurred by a large amount of energy transmitted into the LED paths when the dimmer switches is turned on.
摘要:
A liquid crystal display (LCD) overdriving method, an LCD overdriving device and an LCD are disclosed. The LCD overdriving method improves displaying quality and a response speed of the LCD comprising the following steps of: receiving by a scaling controller, a previous frame image grayscale value stored into a frame buffer of the scaling controller; receiving a next frame image grayscale value by the scaling controller and sending the previous frame image grayscale value and the next frame image grayscale value to a time schedule controller so that the time schedule controller looks up a lookup table and outputs an overdriving grayscale value. The present disclosure can effectively save the cost by eliminating the need of providing an additional frame buffer in the time schedule controller. Furthermore, as image grayscale values of only two pixels need to be stored in the time schedule controller, it can save more memory spaces.
摘要:
An overdrive controlling system for a liquid crystal device includes an image scaling device for storing a current frame data and a preceding frame data, and a time sequence controlling panel. The time sequence controlling panel includes an overdrive controller, a first storage device connected to the overdrive controller for storing a lookup table, and a time sequence controlling circuit connected to the overdrive controller. The time sequence controlling panel further includes two low-voltage differential signaling receivers respectively connected to the overdrive controller. The low-voltage differential signaling receivers are further connected to the image scaling device for receiving the current and preceding frame data and outputting the received frame data to the overdrive controller. The overdrive controller compares the current frame data and the preceding frame data with the lookup table to obtain a compensated image data, and outputs the compensated image data to the time sequence controlling circuit.
摘要:
A light emitting diode (LED) dimming drive device, an LED dimming drive method and a liquid crystal display (LCD) are disclosed. The LED dimming drive device comprises a plurality of dimming control circuits each comprising one dimmer switch and a delay setting circuit for setting a different delay time for each dimming control circuits. Each of the dimming control circuits further comprises a clock delay circuit for receiving a pulse width modulation (PWM) signal, timing according to the delay time, and outputting the PWM signal to the dimmer switch when the delay time expires. Different delay times can be used to control the output of PWM signals and further control the on or off of the dimmer switches. This can avoid the noises or electromagnetic (EM) interferences occurred by a large amount of energy transmitted into the LED paths when the dimmer switches is turned on.