KR102038884B1 - Driving apparatus and display device comprising the same - Google Patents

Driving apparatus and display device comprising the same Download PDF

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Publication number
KR102038884B1
KR102038884B1 KR1020130010865A KR20130010865A KR102038884B1 KR 102038884 B1 KR102038884 B1 KR 102038884B1 KR 1020130010865 A KR1020130010865 A KR 1020130010865A KR 20130010865 A KR20130010865 A KR 20130010865A KR 102038884 B1 KR102038884 B1 KR 102038884B1
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South Korea
Prior art keywords
gate
source
signal
unit
output unit
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KR1020130010865A
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Korean (ko)
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KR20140098366A (en
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김한수
이경구
이진희
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엘지디스플레이 주식회사
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The present invention provides a source output unit for outputting a source signal to a display panel, a source signal providing unit for providing a source signal to the source output unit, a gate output unit for outputting a gate signal to the display panel, and the gate output. A gate signal providing unit for providing a gate signal to the unit, a switching output unit for outputting any one of a source signal and a gate signal to a display panel, and a source signal provided from each of the source signal providing unit and the gate signal providing unit And a driving device including a switching unit for providing any one signal selected according to the number of source lines of the display panel among the and gate signals to the switching output unit, and a display device including the same.
According to the present invention, the thickness of the display device can be reduced and the size can be reduced by the driving device in which the source signal providing unit and the gate signal providing unit which existed separately are integrated into one configuration.

Description

A driving device and a display device including the same. {DRIVING APPARATUS AND DISPLAY DEVICE COMPRISING THE SAME}

The present invention relates to a driving device for transmitting a driving signal to a display panel and a display device including the same.

Recently, flat panel display devices have been developed to replace cathode ray tube display devices in order to achieve thinner, lighter, lower power consumption.

Liquid crystal display devices, plasma display panels, field emission display devices, and light emitting display devices are being actively researched as flat panel display devices. , Mass production technology, ease of driving means, high-definition liquid crystal display device has been in the spotlight.

The liquid crystal display device displays an image using a thin film transistor as a switching element. This liquid crystal display device is used not only for a television or a monitor but also for a notebook computer, a tablet computer, navigation, or various portable information devices.

1 is a view schematically showing a display device according to the prior art.

Referring to FIG. 1, the display apparatus 1 according to the related art includes a display panel 2 and a driving circuit for transmitting a driving signal to the display panel 2.

The display panel 2 is formed such that the plurality of gate lines GL, the plurality of gate lines GL1 to GLn, and the plurality of source lines DL1 to DLm cross each other. Pixels are formed in regions where the plurality of gate lines GL and the plurality of source lines SL cross each other.

The driving circuit includes a source driver 3 for supplying a source signal to the display panel 2, a gate driver 4 for supplying a gate signal to the display panel 2, and a source driver 3 and a gate. The timing control part 5 which controls the drive timing of the drive part 4 is comprised.

The source driver 3 has m source outputs according to the number of source lines SL, and each source output is electrically connected to the source line SL of the display panel 2. The source driver 3 supplies a source signal to each of the corresponding source lines SL by converting digital data supplied from the timing controller 5 into analog data signals and outputting them to respective source output units.

The gate driver 4 has n gate outputs in accordance with the number of gate lines GL, and each gate output is electrically connected to the gate line GL of the display panel 2. The gate driver 4 sequentially drives the gate lines GL under the control of the timing controller 5.

The display device 1 according to the related art as described above has the following problems.

First, since the gate driver 4 and the source driver 3 have a separate configuration, the display device 1 according to the related art has a space where each of the gate driver 4 and the source driver 3 is disposed. This is necessary. When the gate driver 4 and the source driver 3 are integrally formed with the display panel 2, the gate driver 4 and the source driver 3 are not displayed on the display panel 2. Since it must exist in the area, a problem arises in that the size of the entire display device 1 becomes larger than that of the display area of the display panel 2.

On the other hand, when the gate driver 4 and the source driver 3 are not integrally formed with the display panel 2, the gate driver 4 and the source driver 3 may be disposed separately. Space is required. As a result, the thickness of the display apparatus 1 according to the prior art was inevitably increased. As such, when the thickness of the display apparatus 1 is increased and the size thereof increases, the utilization of the space in which the display apparatus 1 is disposed may decrease. In addition, when the display device 1 according to the related art is used in a portable device, a problem arises in that the portable device itself becomes thicker and larger in size, which makes the portable inconvenience.

Second, the display apparatus 1 according to the related art has a fixed number of gate output units of the gate driver 4 and source output units of the source driver 3. Therefore, the source driver 3 and the gate driver 4 cannot be applied to the display panel 2 having a different number of gate lines and source lines than the predetermined number of output units. Therefore, different source driver 3 and gate driver 4 have to be used for display panels 2 having different resolutions. That is, when the resolution of the display panel 2 is changed, the source driver 3 and the gate driver 4 have to be newly developed. As the new source driver 3 and the gate driver 4 need to be applied to each display panel 2, there is a problem in that time and cost are excessively developed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a driving device and a display device which can reduce the thickness and size of the display device by integrating the source signal providing unit and the gate signal providing unit into one driving signal.

Provided are a driving device and a display device applied to various display panels having various resolutions by changing the number of gate output units and source output units.

In order to solve the problems as described above, the present invention may include the following configuration.

The driving apparatus according to the present invention includes a source output unit for outputting a source signal to the display panel; A source signal providing unit providing a source signal to the source output unit; A gate output unit for outputting a gate signal to the display panel; A gate signal providing unit providing a gate signal to the gate output unit; A switching output unit for outputting any one of a source signal and a gate signal to the display panel; And a switching unit configured to provide, to the switching output unit, any one signal selected from source signals and gate signals provided from the source signal providing unit and the gate signal providing unit according to the number of source lines of the display panel. have.

A display device according to the present invention includes a display panel including a source line and a gate line, for displaying an image; A source output unit for outputting a source signal to the source line; A source signal providing unit providing a source signal to the source output unit; A gate output unit for outputting a gate signal to the gate line; A gate signal providing unit providing a gate signal to the gate output unit; A switching output unit for outputting any one of a source signal and a gate signal to the display panel; And a switching unit configured to provide the switching output unit with any one signal selected from the source signal and the gate signal provided from each of the source signal providing unit and the gate signal providing unit according to the number of the source lines.

A display device according to the present invention includes a display panel including a source line and a gate line, for displaying an image; A source output unit for outputting a source signal to the source line; A source signal providing unit providing a source signal to the source output unit; A gate output unit for outputting a gate signal to the gate line; A gate signal providing unit providing a gate signal to the gate output unit; A switching output unit for outputting any one of a source signal and a gate signal to the display panel; And a source signal and a gate signal provided from each of the source signal providing unit and the gate signal providing unit so that a source signal is supplied to the source line and a gate signal is supplied to the gate line. It may include a conversion unit provided in.

According to the present invention, the following effects are obtained.

According to the present invention, the thickness of the display device can be reduced and the size can be reduced by the driving device in which the source signal providing unit and the gate signal providing unit which existed separately are integrated into one configuration.

In addition, the driving apparatus according to the present invention can be commonly used in the display panel having different resolutions by the switching output unit and the switching unit for outputting any signal selected from the source signal and the gate signal. Therefore, it is possible to reduce the effort and cost of newly developing and manufacturing a driving device for each display panel having a different resolution.

1 schematically shows a display device according to the prior art;
2 schematically shows a drive device according to the invention;
3 schematically shows a display device according to the invention;
4 schematically shows a drive device according to the invention;
5 to 8 are views for explaining the operation of the driving apparatus according to the present invention.

Hereinafter, exemplary embodiments of a driving device and a display device according to the present invention will be described in detail with reference to the accompanying drawings.

2 and 3, the display device 100 according to the present invention includes a source line SL and a gate line GL, and includes a display panel 30 for displaying an image and the display panel ( And a driving device 10 for transmitting a driving signal to the 30.

The driving device 10 according to the present invention includes a source output unit 11 for outputting a source signal to the display panel 30, and a source signal providing unit 12 for providing a source signal to the source output unit 11. And gate output parts 13a and 13b for outputting a gate signal to the display panel 30, and gate signal providing parts 14a and 14b for providing a gate signal to the gate output parts 13a and 13b. Include.

The source signal providing unit 12 and the source output unit 11 are electrically connected within the driving device 10 according to the present invention. In addition, the source output unit 11 is connected to the source line SL of the display panel 30. Accordingly, the source signal provided by the source signal providing unit 12 may be supplied to the source line SL.

The gate signal providing parts 14a and 14b and the gate output parts 13a and 13b are electrically connected within the driving device 10 according to the present invention. In addition, the gate output units 13a and 13b are connected to the gate line GL of the display panel 30. Accordingly, the gate signal provided by the gate signal providing units 14a and 14b may be supplied to the gate line GL.

The driving device 10 according to the present invention includes both the source signal providing unit 12 and the gate signal providing units 14a and 14b which existed separately in the related art. That is, the driving device 10 according to the present invention includes the source signal providing part 12 and the gate signal providing parts 14a and 14b which existed separately in one device.

Therefore, the driving device 10 and the display device 100 according to the present invention exhibit the following effects.

As one driving device 10 includes the source signal providing unit 12 and the gate signal providing units 14a and 14b, the space occupied by the source signal providing unit 12 and the gate signal providing units 14a and 14b is occupied. Can be reduced. As a result, the thickness of the display apparatus 100 according to the present invention can be reduced. In addition, since the non-display areas positioned in the source signal providing unit 12 and the gate signal providing units 14a and 14b can be reduced, the display area of the same sized display device 100 can be made larger. On the contrary, even the display apparatus 100 having the display area of the same size can be made smaller.

Hereinafter, the display panel 30 and the driving device 10 will be described in detail with reference to the accompanying drawings.

2 and 3, the display panel 30 includes a lower substrate (TFT substrate), an upper substrate (CF substrate), and a liquid crystal layer formed between the lower substrate and the upper substrate.

A plurality of pixels are formed on the lower substrate for each pixel region defined by a plurality of gate lines GL, a plurality of source lines SL, and intersections of the gate lines GL and the source lines SL. do. Each pixel includes a thin film transistor connected to a gate line GL and a source line SL, and a liquid crystal cell connected to the thin film transistor.

The upper substrate includes a color filter formed to correspond to each pixel, a black matrix for separating the color filter, and the like.

Polarizing plates are attached to each of the upper and lower substrates of the display panel 30. Further, an alignment film for setting the pretilt angle of the liquid crystal is formed on the inner surfaces of the upper substrate and the lower substrate. A column spacer CS may be formed between the upper substrate and the lower substrate of the display panel 30 to hold a cell cap.

The display panel 30 displays an image by adjusting the light transmittance of the liquid crystal layer according to the source signal applied to each pixel.

2 and 3, the driving device 10 according to the present invention includes the gate signal providing units 14a and 14b and the source signal providing unit 12. That is, the driving device 10 according to the present invention includes both the gate signal providing units 14a and 14b and the source signal providing unit 12 which existed in separate configurations.

The source signal providing unit 12 converts the digital image data into a source signal (data voltage) and outputs one horizontal line of source signal (data voltage) for each horizontal period during which the gate signal is supplied to the gate line GL. Supply to the source lines (SL).

That is, the source signal providing unit 12 converts the image data into a source signal (data voltage) and outputs it to the source line SL by using gamma voltages supplied from the gamma voltage generator (not shown). . To this end, the source signal providing unit 12 includes a shift register unit, a latch unit, and a digital-to-analog converter (DAC).

The shift register unit generates a sampling signal using data control signals SSC and SSP received from a controller (not shown).

The latch unit latches digital image data sequentially received from the controller, and simultaneously outputs the digital image data to the digital-to-analog converter DAC.

The digital-analog converter converts the image data transmitted from the latch unit into a positive or negative source signal (data voltage) at the same time and outputs the same. That is, the digital analog converter converts the image data into a positive or negative source signal (data voltage) using the polarity control signal POL transmitted from the controller and outputs the image data to the source lines SL.

The digital-to-analog converter converts image data into a source signal (data voltage) using a high level driving voltage VDD.

The source output unit 11 outputs a source signal (data voltage) to the source line SL of the display panel 30. The source output unit 11 of the display panel 30 according to the source output enable signal SOE transmitted from the controller to the positive or negative source signal (data voltage) transmitted from the digital analog converter. Output to the source lines SL. The source output unit 11 is electrically connected to the source signal providing unit 12.

The gate signal providing units 14a and 14b sequentially gate signals to the gate line GL of the display panel 30 in response to gate control signals GSP, GSC, and GOE provided from a controller (not shown). Outputs a scan signal. The gate signal providing units 14a and 14b shift the gate start pulse GSP according to the gate shift clock GSC to generate a shift pulse. The gate signal providing units 14a and 14b output a gate signal (scan signal) to the corresponding gate line GL every horizontal period in response to the shift pulse. That is, the shift pulse is shifted by one line for each horizontal period, and the gate signal providing units 14a and 14b supply a gate signal (scan signal) to the corresponding gate line GL in response to the shift pulse.

The gate output units 13a and 13b output a gate signal (scan signal) provided by the gate signal providing units 14a and 14b to the gate line GL of the display apparatus 100.

Hereinafter, exemplary embodiments of a driving device and a display device according to the present invention will be described in detail with reference to the accompanying drawings.

4, 6, and 7, the display device 200 according to the present invention includes a source line SL and a gate line GL, a display panel 30 for displaying an image, and The driving device 20 transmits a driving signal to the display panel 30.

The driving apparatus according to the present invention includes a source output unit 21 for outputting a source signal to the source line SL, a source signal providing unit 22 for providing a source signal to the source output unit 21, Gate output units 23a and 23b for outputting a gate signal to the gate line GL, gate signal providing units 24a and 24b for providing a gate signal to the gate output units 23a and 23b, and Provided from the switching output units 26a and 26b for outputting any one of a source signal and a gate signal to the display panel 30, and the source signal providing unit 22 and the gate signal providing units 24a and 24b, respectively. And switching units 27a and 27b which provide one of the signals selected according to the number of source lines of the display panel 30 to the switching output units 26a and 26b.

That is, the switching output unit 26a or 26b may function as a source output unit or a gate output unit by the switching unit 27a or 27b. That is, when the switching units 27a and 27b provide the source signal, the switching output units 26a and 26b function as the source output unit 21. On the contrary, when the switching units 27a and 27b provide the gate signal, the switching output units 26a and 26b function as the gate output units 23a and 23b. As described above, the driving device 20 may change the number of source output units (including the number of switching output units serving as the source output unit) and the number of gate output units (including the number of switching output units serving as the gate output unit). have.

The driving device 20 and the display device 200 according to the present invention as described above has the following effects.

First, the driving device 20 according to the present invention includes both the source signal providing unit 22 and the gate signal providing units 24a and 24b as described above. As the source signal providing unit 22 and the gate signal providing units 24a and 24b are provided in one driving device 20, the source signal providing unit 22 and the gate signal providing units 24a and 24b are occupied. Space can be reduced. As a result, the thickness of the display apparatus 200 according to the present invention can be reduced. In addition, since the non-display areas positioned in the source signal providing unit 22 and the gate signal providing units 24a and 24b can be reduced, the display area of the same sized display device 200 can be made larger. On the contrary, even the display apparatus 200 having the display area of the same size can be made smaller.

Second, the number of source output units and the number of gate output units may be changed by the switching units 27a and 27b and the switching output units 26a and 26b included in the driving device 20 according to the present invention. Therefore, the driving device 20 according to the present invention can be commonly used in various display panels 30 having different numbers of source output units and gate output units.

As a result, it is possible to reduce the effort and cost of developing and manufacturing a new driving device for each display panel 30 having a different number of source output units and gate output units, that is, display panels 30 having different resolutions. have.

Hereinafter, the display panel 30 and the driving device 20 will be described in detail with reference to the accompanying drawings.

The configuration described above will be omitted and the differences will be explained mainly.

4, 6, and 7, an input side of the switching units 27a and 27b is connected to the gate signal providing units 24a and 24b and the source signal providing unit 22. That is, the gate signal provided by the gate signal providing units 24a and 24b and the source signal provided by the source signal providing unit 22 are input to the input side of the switching units 27a and 27b.

The switching output units 26a and 26b are connected to the output sides of the switching units 27a and 27b. Accordingly, only one signal selected from the source signal and the gate signal input from the input side of the switching units 27a and 27b is provided to the switching output units 26a and 26b.

The switching units 27a and 27b include a plurality of muxes 270 for selecting one of a source signal and a gate signal. The mux 270 is connected to the switching output units 26a and 26b so as to correspond to the switching output units 26a and 26b, respectively. That is, each of the muxes 270 is connected to each of the plurality of switching output pins 260 included in the switching output units 26a and 26b.

Hereinafter, operations of the driving apparatus and the display apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

5 and 6, when the source lines SL of the display panel 30 and the number of the source output units 21 are the same number, an output unit for outputting a source signal is no longer needed. Accordingly, the switching units 27a and 27b select a gate signal from the source signal and the gate signal and provide the gate signal to the switching output units 26a and 26b. That is, the switching output units 26a and 26b also perform the same functions as the gate output units 23a and 23b.

In this case, if the number of gate lines GL of the display panel 30 and the number of the gate output units 23a and 23b and the number of the switching output units 26a and 26b are the same, the gate output unit ( The gate signal is output to the entirety of 23a and 23b and the entirety of the switching output sections 26a and 26b.

On the other hand, if the number of the gate output units 23a and 23b and the number of the switching output units 26a and 26b is larger than the number of the gate lines GL of the display panel 30, the switching output unit 26a Gate signal is outputted only to a part of (26b). If the gate signal is not output from the switching output units 26a and 26b, the dummy output unit remains.

In addition, when the number of the gate output units 23a and 23b is larger than the number of the gate lines GL of the display panel 30, the switching output units 26a and 26b do not output the gate signal. In other words, the whole switching output section 26a, 26b becomes a dummy output section. In this case, it is sufficient to output the gate signal only to a part of the gate output units 23a and 23b, so that the remaining parts of the gate output units 23a and 23b also become dummy output units.

7 and 8, when the number of source lines SL of the display panel 30 is greater than the number of the source output units 21, an additional output unit for outputting a source signal is required. . Accordingly, the switching units 27a and 27b select a source signal from the source signal and the gate signal and provide the source signal to the switching output units 26a and 26b. That is, the switching output units 26a and 26b also perform the same function as the source output unit. Here, the switching units 27a and 27b provide source signals to the switching output units 26a and 26b as many as different numbers.

First, when all of the switching output units 26a and 26b function as source output units, the number of gate lines GL of the display panel 30 is compared with the number of gate output units 23a and 23b. . Here, when the number of gate lines GL of the display panel 30 and the number of the gate output units 23a and 23b and the number of the switching output units 26a and 26b are the same, the gate output unit ( The gate signal is output to all of 23a and 23b). Unlike the previous case, when the number of the gate output units 23a and 23b is larger than the number of the gate lines GL of the display panel 30, only a part of the gate output units 23a and 23b is a gate signal. Is output. The remaining portions of the gate output units 23a and 23b which do not output the gate signal become dummy output units.

Unlike the previous case, when a part of the switching output units 26a and 26b functions as a source output unit, the number of gate lines GL of the display panel 30 and the gate output units 23a and 23b and The number of remaining switching output units 26a and 26b is compared. Here, when the number of gate lines GL of the display panel 30 and the number of the gate output units 23a and 23b and the remaining switching output units 26a and 26b are the same, the gate output units 23a and 23b) and the remaining switching output sections 26a and 26b output the gate signals. In contrast, when the number of the gate output units 23a and 23b is greater than the number of the gate lines GL of the display panel 30, only a part of the gate output units 23a and 23b outputs the gate signal. That is, the remaining switch output units 26a and 26b and the remaining gate output units 23a and 23b not outputting the gate signal become dummy output units.

In addition, although the number of the gate lines GL of the display panel 30 is smaller than the number of the gate output units 23a and 23b, the gate output units 23a and 23b and the remaining switching output units 26a and 26b are present. If the number is greater than the sum, the gate signals are output from the entire gate output units 23a and 23b. Some of the remaining switching output units 26a and 26b output gate signals, and the remaining switching output units 26a and 26b become dummy output units.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those who have knowledge.

10, 20: drive unit
11, 21: source output unit 12, 22: source signal providing unit
13, 23: gate output section 14, 24: gate signal output section
15, 25: input unit
30: display panel
100, 200: display device

Claims (10)

A source output unit for outputting a source signal to the display panel;
A source signal providing unit providing a source signal to the source output unit;
A gate output unit for outputting a gate signal to the display panel;
A gate signal providing unit providing a gate signal to the gate output unit;
A switching output unit configured to output at least one of a source signal and a gate signal to the display panel; And
A switching unit for providing at least one of a source signal and a gate signal provided from the source signal providing unit and the gate signal providing unit to the switching output unit,
The pin number of the switch output unit is fixed, and the number of gate signals and the number of source signals output from the switch output unit is variable according to the number of gate lines and the number of data lines provided in the display panel. The method of claim 1,
The switch unit outputs a gate signal to the switch output unit when the source lines of the display panel and the source output unit have the same number. Outputting a drive device. The method of claim 1,
And the gate signal providing unit outputs a gate signal to all or part of the gate output unit according to the number of gate lines of the display panel. According to claim 1,
And the gate signal providing unit outputs a gate signal only to a gate output unit having a number equal to the number of gate lines of the display panel among the gate output units. A display panel including a source line and a gate line, for displaying an image;
A source output unit for outputting a source signal to the source line;
A source signal providing unit providing a source signal to the source output unit;
A gate output unit for outputting a gate signal to the gate line;
A gate signal providing unit providing a gate signal to the gate output unit;
A switching output unit configured to output at least one of a source signal and a gate signal to the display panel; And
A switching unit for providing at least one of a source signal and a gate signal provided from the source signal providing unit and the gate signal providing unit to the switching output unit,
The number of pins of the switching output unit is fixed, and the number of gate signals and the number of source signals output from the switching output unit vary according to the number of gate lines and the number of data lines provided in the display panel. The method of claim 5,
The switching unit outputs a gate signal to the switching output unit when the source line and the source output unit have the same number, and outputs a source signal to the switching output unit when the source line and the source output unit have different numbers. Device. The method of claim 5,
And the gate signal providing unit outputs a gate signal to all or part of the gate output unit according to the number of gate lines. The method of claim 5,
And the gate signal providing unit outputs the gate signals only to the same number of gate output units as the number of gate lines among the gate output units. A display panel including a source line and a gate line, for displaying an image;
A source output unit for outputting a source signal to the source line;
A source signal providing unit providing a source signal to the source output unit;
A gate output unit for outputting a gate signal to the gate line;
A gate signal providing unit providing a gate signal to the gate output unit;
A switching output unit configured to output at least one of a source signal and a gate signal to the display panel; And
At least one of a source signal and a gate signal provided from the source signal providing unit and the gate signal providing unit is supplied to the switching output unit such that a source signal is supplied to the source line and a gate signal is supplied to the gate line. Including a switching unit to provide,
The number of pins of the switching output unit is fixed, and the number of gate signals and the number of source signals output from the switching output unit vary according to the number of gate lines and the number of data lines provided in the display panel. The method of claim 9,
The display panel includes a smaller number of gate lines than the gate output unit;
The gate signal providing unit outputs a gate signal only to a gate output unit having the same number of gate lines as the gate output unit.
KR1020130010865A 2013-01-31 2013-01-31 Driving apparatus and display device comprising the same KR102038884B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010072363A (en) 2008-09-18 2010-04-02 Toshiba Mobile Display Co Ltd Liquid crystal display device
US20100171687A1 (en) * 2009-01-08 2010-07-08 Yi-Chen Chiang Display device having slim border-area architecture and driving method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3884111B2 (en) * 1995-10-18 2007-02-21 東芝電子エンジニアリング株式会社 Video control device and flat display device provided with the video control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010072363A (en) 2008-09-18 2010-04-02 Toshiba Mobile Display Co Ltd Liquid crystal display device
US20100171687A1 (en) * 2009-01-08 2010-07-08 Yi-Chen Chiang Display device having slim border-area architecture and driving method thereof

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