KR100666636B1 - Organic electro luminescence display device for tiling type - Google Patents

Abstract

A tiling-type organic EL(Electro-Luminescence) display device is provided to effectively drive plural organic EL display panels of an organic EL display panel group by using a seamless tiling scheme. A tiling-type organic EL display device includes a scan converter(100), an image splitter(110), an image board(120), an image division board(130), and a tiling-type organic EL display panel group. The scan converter converts a predetermined input signal to a digital image signal, and outputs the digital image signal containing resolution information. The image splitter divides the digital image signal from the scan converter. The image board processes the divided digital image signal. The image division board divides the digital image signal into n sections to generate n digital image divide signals. The tiling-type organic EL display panel group(140) includes n organic EL display panels, which receive the n digital image divide signals.

Description

Tiling type organic electroluminescent display device {Organic Electro Luminescence Display Device for Tiling Type}

1 is a block diagram showing a tiling organic EL display device according to the present invention.

2 is a block diagram showing an organic EL display panel unit of the organic EL display panel group according to the present invention.

3 is a configuration diagram showing a tiling organic EL display panel according to an embodiment of the present invention.

The present invention relates to a tiling type organic EL display device, and more particularly, to a tiling type organic EL display device forming the organic EL display panel group, wherein a plurality of organic EL display panels provided in the organic EL display panel group are smoothly used. A tiling organic EL display device for constructing a tiling organic EL system structure to be displayed.

Recently, organic electroluminescent display devices have advantages such as fast response time, high contrast ratio, wide viewing angle, power saving, etc., and are used in high performance mobile phones, digital cameras, and high performance home appliances than liquid crystal displays. In addition, the organic EL display device is attracting attention as a next-generation flat panel display device because it has excellent luminance characteristics and viewing angle characteristics as compared to the liquid crystal display device.

In particular, a tiling type organic electroluminescence display device is one of flat panel displays manufactured by connecting a plurality of organic EL display panels to each other, and is provided to consumers who want to receive a larger image. Accordingly, the tiling type organic EL display device provided with the tiling type organic EL display panel, which is the final target of the organic EL display device, is a next generation flat panel display device that responds to the technological development requiring the broadband era.

An object of the present invention is to build a tiling organic EL system for operating a tiling organic EL display device, thereby allowing the tiling organic EL display device to display a plurality of organic EL display panels provided in the organic EL display panel group smoothly. To provide.

A scan converter for converting a predetermined input signal into a digital video signal and outputting the digital video signal in which resolution information is embedded; An image distributor for distributing the digital image signal transmitted from the scan converter; An image board for image processing the distributed digital image signal; An image divider for dividing the digital image signal processed by the image board into n to generate n digital image split signals; And an organic electroluminescent display panel group including n organic electroluminescent display panel units receiving the n digital image split signals in a 1: 1 correspondence.

The organic electroluminescent display panel unit provides a tiling type organic electroluminescent display device which is displayed by receiving the digital image split signal.

Hereinafter, described in detail with reference to the accompanying drawings of the present invention.

Example

1 is a block diagram showing a tiling organic EL display device according to the present invention.

Referring to FIG. 1, an organic EL display includes a scan converter (100), an image splitter (110), an image board (120), an image divider (130) and an organic EL. And a display panel group (Tiling-type Organic EL Display Panel Group: 140).

First, a scan converter 100 is a device for converting a resolution and an output format of an input signal. The scan converter 100 is classified according to the complexity of the circuit configuration and the speed of analog to digital conversion. That is, the scan converter 100 converts the interlace scan signal into a progressive scan signal and outputs a digital image signal having a resolution suitable for the organic EL display panel group 140.

In detail, the scan converter 100 is selected from one of a feedback converter, a dual-slop converter, a parallel converter, and a charge-redistribution converter. That is, the feedback converter and the dual-slop converter have a simple circuit configuration but a slow conversion speed, and the parallel converter has the fastest conversion speed from analog to digital. The charge-redistributing converter is a CMOS technology using a switched-capacitor technique and is suitable for converting from analog to digital.

Accordingly, the feedback converter consists of a comparator, an up-down counter and a D / A converter. The comparator outputs one of two different values. Provides a positive voltage to the output when the differential input signal is positive and provides a negative voltage to the output when the differential input signal is negative. The up-down counter is a counter capable of counting up or down depending on the binary level applied to the up-down control terminal. The D / A converter is formed in the feedback path to which the up-down counter and the comparator are connected.

In addition, the dual-slop converter has high resolution because it uses a high resolution (12-bit to 14-bit A / D conversion scheme and does not depend on the exact values of the R and C elements provided.

개의 비교기를 통하 여 입력 신호를

개의 양자화된 전압 레벨들과 동시에 비교한다. 상기 비교기들의 출력은 별도의 설계된 논리 블록에 의해 부호화되어, N 비트의 디지털 단어로 출력된다. 상기 병렬 변환 방식은 하나의 클럭 사이클 동안에 이루어지며 변환 속도는 빠르나, 회로 설계가 복잡하다는 단점을 가진다.In addition, the parallel A / D converter uses a parallel conversion method called a flash conversion method.

Input signals through two comparators

Are compared simultaneously with the two quantized voltage levels. The outputs of the comparators are encoded by separate designed logic blocks and output as N-bit digital words. The parallel conversion scheme is performed during one clock cycle and the conversion speed is high, but the circuit design is complicated.

In addition, the charge-redistributable A / D converter is composed of a binary weighted capacitor array, a voltage comparator, analog switches and control logic circuits and is a suitable converter to be realized by CMOS technology.

Accordingly, the scan converter 100 converts a predetermined input signal into a digital image signal through one of a feedback converter, a dual-slop converter, a parallel converter, and a charge-redistributable converter, and includes resolution information. The digital image signal is output and transmitted to the image distributor 110.

Next, the image splitter 110 receives the digital image signal transmitted from the scan converter 100 and distributes the digital image signal at a ratio of 1: 2 to the image board 120. To pass. That is, the image divider 110 obtains a plurality of output signals having the same quality as one or a plurality of video signals and audio signals. The types of video and audio signals that can be distributed include component video, composite, and S-. There are VIDEO, DVI, RGB, TV RF (antenna), optical (OPTICAL) signals, and the like, and the image splitter 110 should be selected according to these signals. The image splitter 110 may have a deterioration of a signal or a limitation of resolution depending on the quality of an amplifier AMP embedded in the splitter, and selection of a cable to distribute a plurality of output signals is also important.

Next, the image board 120 receives the digital image signal distributed from the image distributor 120 and adjusts a signal level of the distributed digital image signal. That is, the image board 120 prevents the distributed digital image signal from being lost through image processing for converting the scale of the distributed digital image signal, and removes noise generated in the distributed digital image signal. Remove

Next, the image divider 130 transmits the image processed digital image signal to the organic EL display panel group 140. That is, the image divider 140 divides and transmits the image processed digital image signal by n number of the organic EL display panel units 150 formed in the organic EL display panel group 140.

Next, the organic EL display panel group 140 includes n organic EL display panel units 150 and n unit display panels provided for each organic EL display panel unit 150. It is formed by tiling each other by a number.

2 is a block diagram showing an organic EL display panel unit of the organic EL display panel group according to the present invention.

Referring to FIG. 2, the organic EL display panel 150 includes a timing controller 160, a frame memory 151, a level shifter 152, and a gamma signal generator. 153, a drive power 154, a data driver 155, and a unit display panel 170.

First, the timing controller 160 includes a central processing unit 161 and an input-output processor 162, and controls input / output of a digital image segmentation signal, which is a predetermined signal. The operation of the frame memory 151, the level shifter 152, and the gamma signal generator 153 is controlled.

The CPU 161 processes the digital image split signal input from the input / output processor. That is, the CPU 161 calculates and analyzes the digital image split signal input to the input / output processor 162 through a command signal, an address signal, a control signal, and the like. To give control commands to each embedded device.

Next, the frame memory 162 stores the digital image segmentation signal corresponding to a designated address according to a command signal and an address signal generated from the central processor 161 of the timing controller. The frame memory 162 outputs a digital image segmentation signal stored at the address to the input / output processor 162 according to the command signal and the address signal.

next. The level shifter 152 amplifies and adjusts the level of the digital image split signal input to the input / output processor 162 of the timing controller.

Next, the gamma signal generator 153 adjusts luminance according to color deviation with respect to the digital image split signal. That is, the gamma signal generator 153 receives a predetermined reference voltage from a separate power supply unit (not shown) and adjusts the luminance according to the digital image split signal.

Next, the drive power 154 receives predetermined driving power from the power supply unit (not shown) to drive the data driver 155.

Next, the data driver 155 transmits the digital image split signal output from the input / output processor 162 of the timing controller through the data line to the unit display panel 156 through the data line.

Next, the unit display panel 170 receives the digital image segmentation signal from the data driver 155 and is displayed. In addition, the unit display panel 170 is tiled with each other, thereby forming a large display screen.

The unit display panel 170 may include a scan driver for generating a scan signal for controlling the digital image split signal and emission control for controlling light emission of a plurality of organic EL elements included in the unit display panel 170. It includes a signal generator.

3 is a configuration diagram showing a tiling organic EL display panel according to an embodiment of the present invention.

Referring to FIG. 3, the tiling organic EL display panel includes a plurality of data driver 155 and a plurality of unit display panels 170.

The tiling organic EL display panel is formed of a plurality of unit display panels 170, and the plurality of unit display panels 170 are designed to be seamless when connected to each other. That is, the tiling type organic EL display panel is formed by using a seamless tiling technique in which the seams are not broken in order to connect the plurality of unit display panels 170 to each other. Accordingly, each unit display panel 170 forms the tiling organic EL display panel that is seamlessly formed with each other, and is displayed by receiving data signals transmitted from the plurality of data drivers 155.

Here, the seamless tiling technique is a technique for connecting the unit display panels 170 to each other so as to have a tiling shape, and to prevent foreign substances or contact materials from the boundary surfaces of the unit display panels 170.

Next, the plurality of data drivers 155 output the predetermined signals such that the plurality of unit display panels 170 are displayed using a plurality of channels. In addition, the plurality of data drivers 155 may be installed in only one direction selected from the surface of each unit display panel 170, and a limited number of data drivers 155 may be installed on each unit display panel 170. It is provided.

Subsequently, each unit display panel 170 is divided into a plurality of cell display panels 180, and the cell display panel 180 is subdivided into a plurality of cell pixels 190. In addition, the plurality of cell pixels 190 is formed of a plurality of pixels, and the pixels are formed of R, G, and B subpixels, respectively.

Note that the unit display panel 170 can be easily changed at any time according to a fabrication intention or design method of a designer, and the number of divisions for forming the cell display panel 180 and the cell pixel 190 also varies easily. Note that it is possible.

According to the present invention described above, the tiling type organic EL display device constructs a tiling type organic EL system for operating the tiling type organic EL display device so that a plurality of organic EL display panels provided in the organic EL display panel group can be smoothly formed. To be displayed.

Claims (7)

A scan converter converting a predetermined input signal into a digital video signal and outputting the digital video signal in which resolution information is embedded; An image distributor for distributing the digital image signal transmitted from the scan converter; An image board for image processing the distributed digital image signal; An image divider for dividing the digital image signal processed by the image board into n to generate n digital image split signals; And And an organic electroluminescent display panel group including n organic electroluminescent display panel units receiving the n digital image split signals in a 1: 1 correspondence. The organic electroluminescent display panel of claim 1, wherein the organic electroluminescent display panel is displayed by receiving the digital image split signal. The organic electroluminescent display panel of claim 1, A frame memory for storing the digital image segmentation signal; A level shifter for adjusting a level of the digital image split signal; A gamma signal generator for generating a reference voltage and adjusting luminance according to the digital image split signal; A unit display panel for displaying an image corresponding to the digital image split signal; A data driver configured to receive an output of the gamma signal generator and to digitally / analog convert the digital image split signal to the unit display panel; And And a timing controller controlling input / output of the digital image split signal and controlling the frame memory, the level shifter and the gamma signal generator. The method of claim 2, wherein the timing controller, An input / output processor configured to input and output the digital image segmentation signal; And A tiling type organic electroluminescence display comprising a central processor for controlling input and output of the input / output processor, the frame memory, the level shifter, and the gamma signal generator. The tiling organic electroluminescent display of claim 2, wherein the reference voltage is a variable power source. The tiling organic electroluminescent display device according to claim 1, wherein the scan converter is one selected from a feedback converter, a dual-slop converter, a parallel converter, and a charge-redistribution converter. The tiling type organic electroluminescence display of claim 1, wherein the image divider divides the digital image signal in a ratio of 1: 2 and transmits the digital image signal to the image board. The tiling organic electroluminescent display device according to claim 1, wherein the image processing scales the digital image signal and adjusts a signal level.

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