KR20090052404A - Line display module and manufacturing process - Google Patents

Line display module and manufacturing process Download PDF

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Publication number
KR20090052404A
KR20090052404A KR1020070118865A KR20070118865A KR20090052404A KR 20090052404 A KR20090052404 A KR 20090052404A KR 1020070118865 A KR1020070118865 A KR 1020070118865A KR 20070118865 A KR20070118865 A KR 20070118865A KR 20090052404 A KR20090052404 A KR 20090052404A
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South Korea
Prior art keywords
linear
display module
film
pixel
display
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KR1020070118865A
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Korean (ko)
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KR101435683B1 (en
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박순영
정병주
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박순영
정병주
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    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1345Conductors connecting electrodes to cell terminals
    • G02F1/13454Drivers integrated on the active matrix substrate
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit

Abstract

The present invention is to produce a one-dimensional linear display module by an in-line process to conveniently produce a flat panel display. For this purpose a recess is formed in one linear film and the drivers are placed in the recess. Convex portions are formed in another linear film and display elements are disposed on the convex portions. The two films are combined to form a one-dimensional linear display module. A flat panel display is made by arranging a one-dimensional linear display module in a plane. One-dimensional linear display module is a linear shift driver to drive each pixel in the module, making it easy to create a flat panel display.
OLED. LCD. Electronic paper. Shift register. 3-D

Description

Linear display and its production method {Line display module and manufacturing process}

The present invention is directed to a convenient manufacturing method for a display. Especially for LED, AMOLED, LCD, electronic paper.

In displays, LEDs, AMOLEDs, LCDs, and electronic papers use TFT technology to make flat displays. In general, the driver consists of a middle plate and a top plate with a lower plate and display elements arranged like a mesh.

Looking at the manufacturing process of the AMOLED for the basic technology of the present invention (see Figure 1). The lower plate forms and patterns a semiconductor material such as silicon to be used as an active layer of a thin film transistor on a transparent substrate such as glass. A gate insulating film is formed thereon, and then the gate electrode is deposited and patterned. An impurity such as P is implanted into a portion of the semiconductor layer and heat-treated to form a thin film transistor and a source-drain region to form an NMOS. Next, an interlayer insulating film is deposited on the gate electrode, a portion of the interlayer insulating film and the gate insulating film on the source-drain region of the transistor are etched to form a contact hole, and then metal and pixel electrode are deposited and patterned. Form the bottom plate by completing it. The top plate has a high work function such as ITO and IZO on a transparent substrate such as glass, and forms a transparent conductive material as an anode electrode. In addition, an insulating film is formed on the anode electrode using an insulating material such as polyimide, and then a partition wall is formed on the insulating film. Next, an island-shaped spacer is formed inside the pixel region using another insulating material, and then a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, etc. are formed on the anode electrode. The organics are deposited one after the other. The top plate is completed by depositing a conductive material having a low work function, such as aluminum, on the cathode. When the manufacturing of the top plate and the bottom plate is completed as described above, the AM OLED display is completed by attaching the two plates.

In the case of TFTLCD (see Fig. 2), an alignment layer is added on the pixel electrode in the lower plate of the AMOLED. The top plate has a high work function such as ITO and IZO on a transparent substrate such as glass, and forms a transparent conductive material as an anode electrode. An alignment layer is formed thereon. Attach two plates and insert liquid crystal in the middle to complete. Add a flat plate and a color filter to create a complete display.

In the case of a display using an LED device (see FIG. 3), a completed LED device is placed between the upper plate and the lower plate and pressed.

In the case of electronic paper, a method of placing an electronic paper fluid between the upper plate and the lower plate is used (see FIG. 3).

10-2000-7008351 "Method for Manufacturing Organic Semiconductor Devices Using Inkjet Printing" presented an OLED manufacturing method by the method of printing organic materials.

10-2004-0047562 In "How to make an adhesive OLD", he showed how to make OLED on the top plate and OLED driver on the bottom plate to make them fused together.

10-2007-7006433 "In-line process for manufacturing thin-film electronic devices" attempted to increase the production efficiency of OLEDs and the like by integrating the interconnected processes.

10-2007-7003483 In "ORGANIC DEVICES HAVING A FIBER STRUCTURE", organic EL is laminated on fibers to emit light, but pixels cannot be constructed and flat panel display devices have not been developed.

An object of the present invention is to create a one-dimensional linear display module to conveniently produce a flat panel display. Still another object of the present invention is to easily produce a one-dimensional linear display module by an inline process. Still another object of the present invention is to conveniently control the one-dimensional linear display module in units of pixels.

The linear concave film 150 having concave portions 170 in which a driver for driving a pixel is mounted,

Linear convex film 100 having convex portions 120 including corresponding electrodes for supplying power to pixels and display elements for pixels;

1D linear display module 250 by combining linear concave film 150 and linear convex film 100,

The one-dimensional linear display modules 250 are arranged in a plane and connected to the controller 480 to complete a flat panel display. Each of the above production steps is inline processed.

Implementation of the present invention can simplify the production equipment. It is possible to produce flat panel displays at a low price because production costs are low because the clean room that requires high cleanliness is not made large but only a small space is composed as a clean room. Will be.

In addition, displays of various resolutions can be easily produced without major changes in production lines. In addition, anyone can easily produce various types of displays.

Since the linear display module is used, bending with elastic force is possible and a flat panel display with elasticity can be configured.

The first step of the present invention is to make a linear display module in one dimension. Although the process varies depending on the display elements, a common process will first be described, and each detailed process will be described in the Examples. Detailed description will be made with reference to the drawings.

4 is a first process chart of manufacturing a linear convex film. A transparent electrode is formed on the transparent film 100 having heat resistance. It can be made by depositing transparent conductive materials with high work function such as ITO and IZO or printing transparent electronic ink. Since it is a common electrode, it is not necessary to perform additional work of separating pixel by pixel. The convex part 120 is made so that an electrode surface may protrude. So far, work may change. That is, first, the convex portion 120 may be configured, and then the electrode may be made. The method of making the convex portion 120 may be a method of pressing with a press using a jig (form).

5 is a second process chart of manufacturing a linear convex film. The basic element is attached to the convex portion 120 according to the display. In the case of an OLED, the EL layer 110 made of an organic material can be formed by vapor deposition or printing. In the case of LCDs, it is preferable to print an alignment layer for liquid crystals. In the case of LED, it is preferable to electrically connect the anode part of the manufactured LED bare chip. In the case of electronic paper, an insulating layer is formed to prevent current from flowing.

 The production of the linear convex film is performed in an in-line process in which the small chambers are linearly connected and the inside of the chamber is maintained in the same high cleanliness as the clean room.

6 is a first process chart of manufacturing a linear concave film. A transparent electrode is formed on the transparent film 150 having heat resistance. It can be made by depositing transparent conductive materials with high work function such as ITO and IZO or printing transparent electronic ink. Signal lines (Analog, Data, Clock, VCC, GND) for controlling each pixel are formed. A recess 170 is formed in a portion corresponding to the pixel. There are various methods of making recesses, and one of them is a method of pressing with a press while applying heat using a jig (form). Another method is to coat the insulating layer and then etch it by the recessed area. Another method is to prepare a film punched with concave regions separately and attach it to the bottom plate. This is to separate each pixel area from each other and to secure a space for inserting a display element. In particular, it is essential for LCD and electronic paper type utilizing electric field.

7 is a second process chart of manufacturing a linear concave film. The pixel driving driver 160 is formed in the recess 170 corresponding to the pixel. There is a method of attaching small drivers prepared in advance, and a method of directly forming an organic transistor may be used.

In order to facilitate the formation of the electrode wiring, a method of forming the recess 170 in the transparent film 150, configuring the wiring and the driver in another flexible transparent film, and placing the recess 170 in the recess 170 may be considered. .

 The production of the linear concave film is performed in an in-line process in which the small chambers are linearly connected and the inside of the chamber is maintained in a high cleanliness such as a clean room.

8 is a first process diagram for fabricating a one-dimensional linear display module. The convex portion 120 of the linear convex film 100 is inserted into the concave portion 170 of the linear concave film 150. The display element 110 and the pixel driving driver 160 are electrically connected to perform a display function.

9 is a second process diagram for manufacturing a linear display module in one dimension. Mounting the ball or lens 210 in the concave portion formed on the back of the linear convex film 100 improves the efficiency of the display. In the case of the LCD, the viewing angle is enlarged by the microball 210 attached to each pixel.

10 is a third process diagram for fabricating a one-dimensional linear display module. The RGB one-dimensional linear display module 250 is completed by combining the monochrome one-dimensional linear display module 200 for red, blue, and green.

FIG. 11 is another third process diagram of manufacturing a 1-dimensional linear display module. FIG. In the case of OLED, each organic EL for red, blue, and green is laminated on the linear convex film 100. Since it is an inline process, one linear film has only one color. Since the linear concave film 150 plays a common role, three concave rows can be made. Combining the two films can complete the RGB one-dimensional linear display module 250.

12 is a configuration diagram for describing pixel driving of a one-dimensional linear display module. In order to drive each pixel individually, the driver 400 is made by the number of pixels in the linear concave film 150.

13 is a configuration diagram for explaining driving of one pixel. The voltage corresponding to the brightness of the pixel to be driven is prepared as an analog value by the DA converter 410, the gate of the storage capacitor 420 is opened by the active data signal, and the analog value is stored in the storage capacitor 420. do. By the clock signal, the active data signal is moved to the next pixel area and the process is repeated. An inactive data signal enters the previous pixel region to close the gate of the storage capacitor 420 and maintains the analog value stored in the capacitor. Sending an active data signal to the last pixel region completes one frame. The gate of the storage capacitor 420 of each pixel region is opened and closed one by one in order to store analog values. The DA converter 410 generates a driving analog value of the pixel in accordance with the clock signal. Another method of providing the analog value of each pixel is to adjust the gate time of the storage capacitor 420 by keeping the analog value constant and changing the duty ratio of the clock signal to the brightness of the pixel. Both methods can be applied at the same time. The analog value of the DA converter 410 corresponds to the data of the image, and the duty ratio of the clock signal is a correction value for the mismatch of each pixel, thereby making it possible to make a uniform display.

14 is a conceptual diagram for explaining the manufacture of a flat panel display using a one-dimensional linear display module. The control unit 480 arranges the one-dimensional linear display module 250 in order and controls the DAC 410 by the number of the one-dimensional linear display module 250.

FIG. 15 is a conceptual diagram illustrating another method of manufacturing a flat panel display using a one-dimensional linear display module. One flat display may be configured by one one-dimensional linear display module 250 and one DAC 410. In some cases, you can add a few to configure your display. That is, it is possible to easily make one flat panel display in a desired form using the minimum control unit 590.

Example 1 An OLED is constructed.

The wire which can supply electricity to the driver which drives a display element in one linear film is comprised. A recess is formed in the area corresponding to the pixel. The driver portion 400 prepared in advance is attached to the recess. An organic transistor can also be used for a structure of a driver part. This is called concave film.

On another transparent linear film to form a transparent wiring for supplying electricity to the display element. Since it is a common electrode, the whole may be deposited or printed. The convex part which protrudes in the area | region corresponding to a pixel is created. Organic materials such as a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer are sequentially deposited on the convex portion. On it is deposited a conductive material of low work function, such as aluminum, to the cathode electrode. Use a linear chamber arranged linearly to deposit the materials of each layer in order. The organic material is deposited while passing through the chamber at a constant speed. Linear films for red light, green light and blue light are made through different production lines. It is also possible to use an inkjet printing method other than deposition in constructing each layer. This is called convex film.

The convex film is disposed on the concave film so that the uneven parts are engaged with each other and sealed. The micro ball is coupled to the concave portion of the rear surface of the convex film.

Example 2 An LCD is constructed.

Wiring is provided for supplying electricity to the driver for driving the display element in one transparent linear film. The polarizing layer is formed on the back side. One color filter layer is formed on the back side, and a recess is formed in the area corresponding to the pixel. The TFT LCD driver 400 prepared in advance is attached to the recess. An organic transistor by printing can also be used for the configuration of the driver portion. An alignment layer is coated on the pixel electrode layer formed in the driver. This is called concave film.

The transparent electrode for driving the liquid crystal is formed on the other linear film. The polarizing layer is coated on the back side. The convex part is made in the area | region corresponding to a pixel. An alignment layer is coated on the convex portion. This is called convex film.

An inline process uses a linear chamber that is arranged linearly to form materials in each layer in order. By forming the color filter layer formed on the concave film according to each light, linear LED films for red light, green light and blue light are made through different production lines.

A liquid crystal is put into the recessed part of the recessed film which comprises a lower board, and the convex film which comprises an upper board is inserted and sealed. The micro balls are joined to the recesses formed in the upper panel to complete the linear display module for the LCD.

Example 3 A flat panel display using an LED is constructed.

The wire which can supply electricity to the driver which drives a display element in one linear film is comprised. A recess is formed in the area corresponding to the pixel. The driver portion 400 prepared in advance is attached to the recess.

In another linear film, a transparent wiring for supplying electricity to the display device is formed. Since it is a common electrode, the whole may be deposited or printed. The convex part which protrudes in the area | region corresponding to a pixel is created.

The two linear films are arranged so that the uneven parts are engaged with each other, and the LED chip is inserted to bond the electric contacts. It is completed by attaching a micro ball to the upper recess.

EXAMPLE 4 Electronic paper is comprised.

The wire which can supply electricity to the driver which drives a display element in one linear film is comprised. A recess is formed in the area corresponding to the pixel. The driver portion 400 prepared in advance is attached to the recess. Insulation coating is applied to the pixel electrode.

In another linear film, a transparent wiring for supplying electricity to the display device is formed. Since it is a common electrode, the whole may be deposited or printed. The convex part which protrudes in the area | region corresponding to a pixel is created. An insulating layer is made on the convex portion.

The two linear films are arranged to engage the uneven parts with each other, and the fluid for the electronic paper is inserted therebetween and sealed. The micro balls are joined to the recesses of the upper part to complete them.

Example 5 A projection display is configured.

16 is a configuration diagram of the projection display using the one-dimensional linear display module 250. The light of the pixel becomes parallel light by the microlens 210 and constitutes one screen by the reflecting means 310. The reflecting means 310 may be a vibrating mirror or may be a rotating hexagonal mirror. The one-dimensional linear display module 250 and the reflecting means 310 are combined to form a linear display module 300 for projection.

Example 6 A stereoscopic display is constructed.

17 is a block diagram of a three-dimensional display using the present invention. The linear display module 300 for projection of FIG. 16 is arranged in a plane and a control unit 485 makes a screen for three-dimensional display. The frame of each image is projected left and right using the reflecting means 310.

1 is a basic structural diagram of an OLED.

2 is a basic structural diagram of the LCD.

3 is a basic structural diagram of LED and electronic paper.

4 is a first process chart of manufacturing a linear convex film.

5 is a second process chart of manufacturing a linear convex film.

6 is a first process chart of manufacturing a linear concave film.

7 is a second process chart of manufacturing a linear concave film.

8 is a first process diagram for fabricating a one-dimensional linear display module.

9 is a second process diagram for manufacturing a linear display module in one dimension.

10 is a third process diagram for fabricating a one-dimensional linear display module.

FIG. 11 is another third process diagram of manufacturing a 1-dimensional linear display module. FIG.

12 is a configuration diagram for explaining pixel driving of a one-dimensional linear display module;

13 is a configuration diagram for explaining driving of one pixel.

14 is a conceptual diagram for explaining the manufacture of a flat panel display using a one-dimensional linear display module.

FIG. 15 is a conceptual diagram illustrating another method of manufacturing a flat panel display using a one-dimensional linear display module.

16 is a configuration diagram of a projection display using the present invention.

17 is a block diagram of a three-dimensional display using the present invention.

Claims (11)

  1. In the display,
    A linear concave film 150 having concave portions 170 mounted with a driver 400 for driving a pixel as a means for sequentially moving a gate control signal for storing an analog signal in a storage capacitor;
    A linear convex film 100 having convex portions 120 including corresponding electrodes for supplying power to pixels and display elements for pixels;
    The linear concave film 150 and the linear convex film 100 are combined, and a one-dimensional linear display module 250 configured by adding a ball or a lens 210 to the concave formed on the rear surface of the linear convex film 100. )
  2. The one-dimensional linear display module 250 according to claim 1, wherein the pixel display element is an organic EL.
  3. The one-dimensional linear display module 250 of claim 1, wherein the pixel display element is an LCD.
  4. The one-dimensional linear display module 250 of claim 1, wherein the pixel display element is an LED.
  5. The one-dimensional linear display module 250 of claim 1, wherein the pixel display element is an electronic paper electric fluid.
  6. In flat panel display,
    At least one one-dimensional linear display module 250;
    A flat panel display including a control unit 480 having a control function of sequentially moving a gate control signal for storing an analog signal for driving a pixel in a storage capacitor 420 of the 1D linear display module 250.
  7. In flat panel display,
    One-dimensional linear display module 250;
    Reflection means 310 coupled to the one-dimensional linear display module 250;
    A control function of sequentially moving a gate control signal for storing an analog signal for driving a pixel in a storage capacitor 420 of the 1D linear display module 250 and driving the reflecting means 310 to form an image on a plane Projection type flat panel display composed of a control unit 480
  8. In stereoscopic display,
    A one-dimensional linear display module 250 arranged in a plane;
    Reflecting means 310 coupled to each of the one-dimensional linear display module 250 arranged in a plane;
    A control function for sequentially moving a gate control signal for storing an analog signal for driving a pixel in the storage capacitor 420 of the 1D linear display module 250 and driving the reflecting means 310 to create a stereoscopic image. Stereoscopic display composed of a control unit 480
  9. In the production of the display,
    Producing a linear concave film 150 while the linear film is sequentially moved in the chamber consisting of a clean room for the generation of electrical wiring, the creation of the recesses 170, the mounting of the driver 400;
    A linear convex film 100 is produced while the linear film is sequentially moved in a chamber constituted by a clean room to make a corresponding electrode for supplying power to the pixel and a display element for the pixel;
    A production step of combining the linear concave film 150 and the linear convex film 100 produced in each production step;
    A production step of coupling the ball or the lens 210 to the concave portion formed on the rear surface of the linear convex film 100;
    Combined steps to produce a one-dimensional linear display module 250 in an inline process
  10. 10. The linear display module 250 of claim 9, wherein the production of the linear concave film 150 comprises a process of forming an electrode on a film separate from the concave portion and forming a driver directly on the film with an organic transistor. ) Is produced by the inline process
  11. 10. The method of claim 9, wherein the one-dimensional linear display module 250 for producing a ball or a lens 210 by inkjet in a recess formed on the rear surface of the linear convex film 100 is produced by an inline process.
KR1020070118865A 2007-11-21 2007-11-21 Line display module and manufacturing process KR101435683B1 (en)

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US7710511B2 (en) * 2004-10-15 2010-05-04 3M Innovative Properties Company Liquid crystal displays with laminated diffuser plates
KR101137848B1 (en) * 2005-03-22 2012-04-20 엘지디스플레이 주식회사 Apparatus and method for driving flat panel dispaly device
KR101212151B1 (en) * 2005-12-29 2012-12-13 엘지디스플레이 주식회사 Method of manufacturing Liquid Crystal Display Device using Patterning Method

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