KR101261881B1 - Light Emitting Diode assembly and liquid crystal display module with the same - Google Patents

Light Emitting Diode assembly and liquid crystal display module with the same Download PDF

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Publication number
KR101261881B1
KR101261881B1 KR1020060051729A KR20060051729A KR101261881B1 KR 101261881 B1 KR101261881 B1 KR 101261881B1 KR 1020060051729 A KR1020060051729 A KR 1020060051729A KR 20060051729 A KR20060051729 A KR 20060051729A KR 101261881 B1 KR101261881 B1 KR 101261881B1
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KR
South Korea
Prior art keywords
light emitting
emitting diode
cover bottom
liquid crystal
plurality
Prior art date
Application number
KR1020060051729A
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Korean (ko)
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KR20070117729A (en
Inventor
이상래
Original Assignee
엘지디스플레이 주식회사
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Priority to KR1020060051729A priority Critical patent/KR101261881B1/en
Publication of KR20070117729A publication Critical patent/KR20070117729A/en
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Publication of KR101261881B1 publication Critical patent/KR101261881B1/en

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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
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133603Direct backlight with LEDs
    • 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
    • G02F1/1336Illuminating devices
    • G02F1/133621Illuminating devices providing coloured light
    • 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
    • G02F2201/00Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/52RGB geometrical arrangements
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/04Maintaining the quality of display appearance
    • G09G2320/041Temperature compensation

Abstract

The present invention relates to a liquid crystal display module using a light emitting diode as a light source, and more particularly, to a liquid crystal display module modularized together with a liquid crystal panel to implement various images using a small number of light emitting diodes as a light source. It is about.
A feature of the present invention is a plurality of clusters consisting of a red, green, green, blue light emitting diodes, a light emitting diode printed circuit board for mounting the light emitting diodes of the red, green, green, blue bundled together, and the red, one bundled, And a light emitting diode assembly including a plurality of supporters for supporting green, green, and blue light emitting diodes and a light emitting diode printed circuit board, wherein each of the light emitting diode assemblies emits light in different directions on an inner surface of the cover bottom. To deploy.
As a result, light is incident evenly on the entire screen on which an image is displayed even though a smaller number of light emitting diodes are used than in the related art, thereby reducing the process cost, thereby providing a low-cost liquid crystal display device.
In addition, there is an effect that can lower the power consumption, there is an effect that the problem of the same deterioration as before.

Description

Light emitting diode assembly and liquid crystal display module including same

1 is a schematic cross-sectional view of a liquid crystal display device using a general light emitting diode as a light source.

FIG. 2 schematically illustrates a cover bottom of FIG. 1 and a state in which the light emitting diode assembly is mounted on an inner surface of the cover bottom.

3 is an exploded perspective view of a liquid crystal display device using a light emitting diode according to an embodiment of the present invention as a light source.

4 is a view schematically illustrating a cover bottom of FIG. 3 and a state in which the light emitting diode assembly is mounted on an inner surface of the cover bottom.

5 is a view showing another embodiment of the present invention, a plan view schematically showing a cover bottom, and a state in which the light emitting diode assembly is mounted on the inner surface of the cover bottom.

<Description of the symbols for the main parts of the drawings>

122: light emitting diode printed circuit board 124: light emitting diode

128: light emitting diode assembly 138: supporter

150: Cover Bottom

The present invention relates to a liquid crystal display module using a light emitting diode as a light source, and more particularly, to a liquid crystal display module modularized together with a liquid crystal panel to implement various images using a small number of light emitting diodes as a light source. It is about.

Recently, with the development of information technology and mobile communication technology, the development of the display device that can visually display information has been made, and the display device can emit light by the self-emissive display having the light emission characteristics and other external factors. Which are classified as non-luminescent displays.

The non-light emitting display may be an LCD (Liquid Crystal Display).

Since the LCD does not have a light emitting element, it requires a separate light source. Accordingly, a backlight unit having a light source on the back is provided to irradiate light toward the front of the LCD, thereby realizing an identifiable image.

The backlight unit uses a Cold Cathode Fluorescent Lamp (CCFL), an External Electrode Fluorescentt Lamp, a Light Emitting Diode (LED), or the like as a light source.

Among them, light emitting diodes, in particular, have a trend of being widely used as a display light source having features such as small size, low power consumption, and high reliability.

1 is a schematic cross-sectional view of a liquid crystal display device using a general light emitting diode as a light source.

As shown in the drawing, a typical LCD module includes a plurality of light emitting diodes 24 and a light emitting diode printed circuit board 22 on which the light emitting diodes 24 are mounted. A 28 is seated, and a reflective sheet 26 exposing only the light emitting diodes 24 through a through hole (not shown) covers the entire inner surface of the light emitting diode printed circuit board 22 and the cover bottom 50. A plurality of optical sheets 32 are interposed therebetween, and the support main 40 that borders the plurality of optical sheets 32 and the liquid crystal panel 10 are seated thereon.

In addition, a top cover 60 bordering the liquid crystal panel 10 is configured.

In this case, a gate printed circuit board (not shown) and a source printed circuit board (not shown) are connected to each other adjacent edges of the liquid crystal panel 10 through a flexible circuit board.

FIG. 2 is a view schematically illustrating a cover bottom of FIG. 1 and a state in which the light emitting diode assembly is mounted on an inner surface of the cover bottom.

As shown, the cover bottom 50 is one plate shape with two edges facing up from each other, and the plurality of light emitting diode assemblies 28 arranged along the inner surface of the cover bottom 50 are provided in plurality. A light emitting diode printed circuit board 22 and a plurality of light emitting diodes 24 mounted on each of them.

In this case, a plurality of light emitting diodes 24 are mounted in order to obtain a desired brightness from the front of the panel. At this time, the light emitting diodes 24 are applied on the light emitting diode printed circuit board 22 at intervals of about 12 mm. The light emitting diodes 24 of green, green, and blue are repeatedly arranged and mounted. As a result, a large amount of power is required to drive the plurality of light emitting diodes 24, and a lot of heat is generated due to resistance heat generated when the light emitting diodes 24 emit light.

As a result, the liquid crystal molecules of the liquid crystal display device deteriorate, so that an accurate light transmittance cannot be obtained, and the driving circuit malfunctions, resulting in a problem of deterioration of image quality in the liquid crystal display device.

The present invention has been made to solve the above problems, and a first object of the present invention is to prevent deterioration of the liquid crystal display device.

It is also a second object to provide a liquid crystal display device having low cost and low power consumption.

In order to achieve the above object, the present invention provides a cover bottom up-banded so that the four edges have a constant inclination; A plurality of light emitting diode assemblies disposed on an inner surface of the cover bottom and emitting light with a predetermined tilt toward the outermost edge from a center of the inner surface of the cover bottom; A backlight unit formed on the light emitting diode assembly and further including a transparent acrylic plate having a plurality of reflective dots attached thereto, and a plurality of optical sheets interposed therebetween; A support frame having a rectangular frame shape surrounding the backlight unit; A liquid crystal panel mounted on the backlight unit and having a printed circuit board on one side; An edge of the liquid crystal panel is provided, and provides a liquid crystal display module including a top cover assembled to the support main and the cover bottom.

The light emitting diode assembly includes a plurality of light emitting diodes emitting red, green, and blue colors; A light emitting diode printed circuit board having a driving circuit for driving the light emitting diodes, wherein the plurality of light emitting diodes are bundled and mounted; And a supporter for supporting the light emitting diode and the light emitting diode printed circuit board, wherein the light emitting diode has a plurality of light emission having red (R), green (G), green (G), and blue (B) colors. It is characterized in that the 4 in 1 type that emits the color of the diode or RGGB.

In addition, each of the light emitting diode assemblies arranged around the outermost edge of the inner surface of the cover bottom is inclined outward to form an angle of 90 ° with the upwardly bent edge of the cover bottom, and comes toward the inner surface center of the cover bottom. The light emitting diode assembly is characterized in that it faces the front, and the reflective sheet is attached to the four edges that are upwardly bent to have a constant inclination of the cover bottom.

In addition, it characterized in that it further comprises a lamp guide for preventing the sag of the plurality of optical sheets.

The present invention also includes a coververt upwardly bent so that the four edges have a constant slope; A light emitting diode assembly disposed on an inner surface of the cover bottom; A backlight unit formed on the light emitting diode assembly and further including a transparent acrylic plate having a plurality of reflective dots attached thereto, and a plurality of optical sheets interposed therebetween; A support frame having a rectangular frame shape surrounding the backlight unit; A liquid crystal panel mounted on the backlight unit and having a printed circuit board on one side; An edge of the liquid crystal panel and including a top cover assembled to the support main and the cover bottom, wherein the light emitting diode assembly is densely arranged away from the center of the cover bottom to the outside. A liquid crystal display module is provided.

The light emitting diode assembly includes a plurality of light emitting diodes emitting red, green, and blue colors; A driving circuit for driving the light emitting diodes is provided, and the plurality of light emitting diodes are bundled together and mounted on a light emitting diode printed circuit board.

The present invention also includes a cover bottom upwardly bent such that the four edges have a constant inclination; A plurality of light emitting diode assemblies disposed on an inner surface of the cover bottom and having different spread angles of light; A backlight unit formed on the light emitting diode assembly and further including a transparent acrylic plate having a plurality of reflective dots attached thereto, and a plurality of optical sheets interposed therebetween; A support frame having a rectangular frame shape surrounding the backlight unit; A liquid crystal panel mounted on the backlight unit and having a printed circuit board on one side; An edge of the liquid crystal panel and including a top cover assembled to the support main and the cover bottom, wherein the light emitting diode assembly has a light spreading angle wider from the inner side of the cover bottom to the outside. It provides a liquid crystal display module, characterized in that.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

3 is an exploded perspective view of a liquid crystal display using a light emitting diode according to an embodiment of the present invention as a light source.

As shown in the drawing, the liquid crystal display module 170 includes a liquid crystal panel 110 and a backlight unit 120 stacked up and down, a support frame 140 having a rectangular frame shape bordering the edges thereof, and a backlight unit ( The cover cover 150 coupled to the support main 140 while covering the rear surface of the 120 and the top cover 160 having a rectangular frame shape coupled to the support main 140 bordering the front edge of the liquid crystal panel 110. Include.

In this case, the gate printed circuit board 118 is formed along one edge of the liquid crystal panel 110, and the source printed circuit board 116 is connected through a flexible printed circuit board (not shown). Folded to the side or the back of the 150, they are each a gate printed circuit board 118 and a plurality of data lines to scan-transfer the on / off signal of the thin film transistor (not shown) to a plurality of gate lines (not shown) It is divided into a source printed circuit board 116 which transmits an image signal for each frame to a frame (not shown), and is provided as two adjacent edges of the liquid crystal panel 110.

In addition, the backlight unit 120 may include a plurality of light emitting diode assemblies 128 disposed on an inner surface of the cover bottom 150 and a white or silver reflective sheet (not shown) covering the edge of the cover bottom 150. And a transparent acrylic plate 130 to which a plurality of reflecting dots 131 are attached, and a plurality of optical sheets 132 interposed therebetween.

The plurality of optical sheets 132 include a prism sheet, a diffusion sheet, and the like.

In addition, it further includes a lamp guide 134 for preventing the sag of the plurality of optical sheets 132.

Accordingly, the light emitted from the light emitting diode assembly 128 is directly or reflected by a reflective sheet (not shown) and processed into a uniform surface light source during the process of passing through the optical sheet 132 to be incident on the liquid crystal panel 110. By using this, the liquid crystal panel 110 finally displays an image of a desired luminance to the outside.

Looking in more detail with respect to the light emitting diode assembly 128 arranged in the inner surface of the cover bottom 150, the light emitting diode assembly 128 is a cluster of red, green, green, blue light emitting diode (not shown) And a plurality of light emitting diodes mounted on each of the plurality of light emitting diodes, each of which includes a plurality of light emitting diode printed circuit boards (not shown) including a driving circuit (not shown) for driving the light emitting diodes, and the light emitting diodes and the light emitting diodes. It is composed of a plurality of supporters (not shown) for supporting the circuit board.

In this case, each of the light emitting diode assemblies 128 including red, green, green, and blue light emitting diodes (not shown) may emit light toward different directions.

This will be described in more detail with reference to FIG. 4.

FIG. 4 is a view schematically illustrating a cover bottom of FIG. 3 and a state in which the light emitting diode assembly is mounted on an inner surface of the cover bottom.

As shown in the drawing, the cover bottom 150 has a plate shape with four edges upwardly curved to form a plurality of light emitting diode assemblies 128 on the inner surface of the cover bottom 150.

In this case, a white or silver reflective sheet (not shown) is formed at four edges which are upwardly bent to have a predetermined inclination of the cover bottom 150.

The light emitting diode assembly 128 is composed of red, green, green, and blue light emitting diodes 124 to form a cluster, and a plurality of light emitting diodes 124 of the red, green, green, and blue bundled together are mounted. The light emitting diodes 124 and the light emitting diode printed circuit board 122 so that light emitted from the diode printed circuit board 122 and the light-emitting diodes 124 of red, green, green, and blue bundled together in different directions are emitted. It includes a plurality of supporters (138) for supporting.

At this time, each of the light emitting diodes 124 is arranged to be spaced apart from each other so as not to be affected by the heat emitted from each of the light emitting diodes 124.

Each of the red, green, green, and blue light emitting diodes 124 emits white light by color mixing. The two green light emitting diodes are used for the desired brightness of white light.

That is, since the efficiency of the red or blue light is relatively higher than the efficiency of the green light, two green light emitting diodes are used to make the white and red light efficiency equal to the green light efficiency. Can be.

That is, the light emitting diode assembly 128 includes a light emitting diode printed circuit board (22 of FIG. 2) in which red, green, and blue light emitting diodes (24 of FIG. 2) are repeatedly arranged side by side. 2, 50) rather than a plurality of light emitting diodes 124 of red, green, green, and blue, which are not arranged in the longitudinal direction on the inner surface, the light emitting diodes 124 of red, green, green, and blue that are bundled into one are The light emitting diodes 124 mounted on one light emitting diode printed circuit board 122 and the red, green, green, and blue light-emitting diodes 124 and the light emitting diode printed circuit boards 122 on which the light emitting diodes 124 are mounted are one. A plurality of light emitting diode assemblies 128 are supported by the supporters 138 of the plurality of light emitting diode assemblies 128, and the plurality of light emitting diode assemblies 128 are disposed at predetermined intervals on the inner surface of the cover bottom 150.

In this case, each of the light emitting diode assembly 128 is configured to emit light in a different direction, each of the light emitting diode assembly 128 is disposed around the outermost edge of the inner cover cover 150 is the cover It is configured to be inclined so as to form an angle between the upwardly bent edge and the bottom of the bottom (150) 90 °, it is configured to be directed toward the front toward the inner surface of the cover bottom 150 to emit light.

To describe this in more detail, for example, when the light emitting diode assembly 128 is arranged in the form of a 5 × 6 or 6 × 5 matrix on the inner surface of the cover bottom 150, the edge of the inner surface of the cover bottom 150 is formed. 18 light emitting diode assembly 128 is configured to tilt about 45 ° outward so that the angle between the upwardly bent edge of the cover bottom is 90 °, and the inside of the light emitting diode assembly 128 configured to be tilted 45 °. The two adjacent light emitting diode assemblies 128 are also inclined outward by about 22.5 °, and the two light emitting diode assemblies 128 neighboring the inside of the light emitting diode assembly 128 are also inclined by 22.5 °. It is configured to shine toward the front without tilting.

As a result, the light emitted by each of the light emitting diode assemblies 128 is uniformly incident on the entire screen on which the image is displayed. In this case, the luminance of the light incident by the reflection sheet (not shown) formed at the four edges of the cover bottom 150 is further increased.

At this time, each of the light emitting diodes 124 is spaced apart at regular intervals so as not to be affected by the heat emitted from each of the light emitting diodes 124 to form a cluster, the light of red, green, green, blue bundled into one A plurality of light emitting diode assemblies 128 including a diode 124 are also spaced apart by a predetermined interval so that the light emitting diodes are arranged side by side on a conventional light emitting diode printed circuit board (22 of FIG. 2). 2, the gap between the 24) is narrow, so there is no problem such as deterioration due to high heat generated when the light emitting diode (24 of FIG. 2) is emitted, and fewer light emitting diodes 124 are used compared to the conventional process. The cost savings also come.

In addition, since the number of light emitting diodes 124 is driven as compared with the conventional art, power consumption may be lowered.

FIG. 5 is a diagram illustrating another embodiment of the present invention, which is a plan view schematically showing a cover bottom and a state in which the light emitting diode assembly is mounted on an inner surface of the cover bottom.

As shown, a plurality of light emitting diode assemblies 128 are formed on an inner surface of the cover bottom 150, and the light emitting diode assembly 128 is further moved away from the center of the inner surface of the cover bottom 150. Consists of dense intervals.

This is because the brightness of the light emitted from the light emitting diode assembly 128 is the highest from the front, the cover bottom 150 is composed of a single plate-shaped upward band so that the four edges have a constant inclination, the light emitting diode assembly 128 may be configured only on the inner surface of the cover bottom 150, but not on the upwardly bent edge of the cover bottom 150. Accordingly, the luminance of the light incident from the light emitting diode assembly 128 is small in the region corresponding to the edge of the cover bottom 150.

Therefore, by more densely configuring the light emitting diode assembly 128 arranged along the edge of the inner surface of the cover bottom 150, a large amount of light is also incident on the edge of the cover bottom 150, the cover bottom ( This is to obtain the same luminance as the luminance of the light emitted from the light emitting diode assembly 128 configured at the center of the inner surface of the 150.

In this case, the light emitting diode assembly 128 is composed of one cluster of red, green, green, and blue light emitting diodes 124, like the light emitting diode assembly 128 described with reference to FIG. , Green, green, and blue light emitting diodes 124 are mounted on a plurality of light emitting diode printed circuit board 122 is mounted one by one, they are characterized in that all of the light toward the front.

The four or more edges bent upward to have a constant inclination of the cover bottom 150 further comprises a white or silver reflective sheet (not shown).

Although not shown in the drawings, it is also possible to configure a plurality of light emitting diode assemblies arranged on the inner surface of the cover bottom using light emitting diodes having different spreading degrees.

That is, the light emitting diode assembly arranged along the outer edge of the inner surface of the cover bottom uses the spread of light more widely than the light emitting diode assembly configured at the center of the inner surface of the cover bottom.

As described above, the light emitting diode printed circuit board 122 mounting the light emitting diodes 124 of red, green, green, and blue bundled together and the light emitting diodes 124 of red, green, green, and blue bundled together, The light emitting diode assembly 128 includes a plurality of light emitting diodes 124 and a plurality of supporters 138 for supporting the light emitting diode printed circuit board 122. The diode assembly 128 is arranged to emit light in different directions on the inner surface of the cover bottom 150, such that light is uniformly incident on the entire screen on which the image is displayed, thereby reducing the number of light emitting diodes 124. Can be used.

As a result, it is possible to provide a low-cost liquid crystal display device by reducing the process cost, and the power consumption is lowered because the number of light emitting diodes 124 is driven compared to the conventional.

In addition, the red, green, green, and blue light emitting diodes 124 are disposed at regular intervals so as not to be affected by the heat emitted from the respective light emitting diodes 124, and thus, the same deterioration phenomenon does not occur.

The present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention.

As described above, the light-emitting diodes of red, green, green and blue bundled together according to the present invention, the light-emitting diode printed circuit board for mounting the light-emitting diodes of the red, green, green and blue bundled together into one, and the red bundled together And a light emitting diode assembly including a plurality of supporters for supporting green, green, and blue light emitting diodes and a light emitting diode printed circuit board, wherein each of the light emitting diode assemblies emits light in different directions on an inner surface of the cover bottom. By arranging so that light is uniformly incident on the entire screen on which an image is displayed, a smaller number of light emitting diodes can be used than in the past, thereby reducing the process cost, thereby providing a low-cost liquid crystal display device. can do.

In addition, since the number of light emitting diodes driven is smaller than conventional ones, there is an effect of lowering power consumption, and the same problem of deterioration as before is prevented.

Claims (10)

  1. A cover bottom upwardly bent so that the four sides have a constant inclination;
    A backlight unit including a plurality of light emitting diode assemblies disposed on an inner surface of the cover bottom;
    Liquid crystal panel mounted on the backlight unit
    / RTI &gt;
    The light emitting diode assembly positioned at the center of the cover bottom of the plurality of light emitting diode assemblies is perpendicular to a bottom surface of the cover bottom and positioned at an edge of the cover bottom. Liquid crystal display module, characterized in that arranged inclined.
  2. The method of claim 1,
    The light emitting diode assembly includes a plurality of light emitting diodes emitting red, green, and blue colors; A light emitting diode printed circuit board having a driving circuit for driving the light emitting diodes, wherein the plurality of light emitting diodes are bundled and mounted; And a supporter for supporting the light emitting diode and the light emitting diode printed circuit board.
  3. The method of claim 2,
    The light emitting diode is a liquid crystal display module, characterized in that the light emitting diodes of red (R), green (G), green (G), blue (B) color or a 4 in 1 type that emits the colors of RGGB .
  4. The method of claim 2,
    The light emitting diode assembly arranged around the outermost edge of the inner surface of the cover bottom is inclined outward to form an angle of 90 ° with an upwardly bent edge of the cover bottom, and the light emitting diode as it comes to the inner center of the cover bottom The assembly is a liquid crystal display device, characterized in that facing the front.
  5. The method of claim 1,
    And a reflective sheet is attached to four edges which are upwardly bent to have a predetermined inclination of the cover bottom.
  6. The method of claim 1,
    The backlight unit is formed on the light emitting diode assembly and has a transparent acrylic plate attached with a plurality of reflective dots, a plurality of optical sheets interposed on the transparent acrylic plate, and a lamp for preventing sagging of the plurality of optical sheets. Liquid crystal display module further comprises a guide.
  7. A cover bottom upwardly bent so that the four sides have a constant inclination;
    A backlight unit including a light emitting diode assembly disposed on an inner surface of the cover bottom;
    Liquid crystal panel mounted on the backlight unit
    The light emitting diode assembly may be arranged along a horizontal direction and a vertical direction, and the light emitting diode assembly may be densely arranged in the horizontal direction and the vertical direction as the light emitting diode assembly moves away from the center of the inner surface of the cover bottom. LCD display module.
  8. The method of claim 7, wherein
    The light emitting diode assembly includes a plurality of light emitting diodes emitting red, green, and blue colors; And a driving circuit for driving the light emitting diode, wherein the plurality of light emitting diodes are bundled together and mounted on a light emitting diode printed circuit board.
  9. A cover bottom upwardly bent so that the four sides have a constant inclination;
    A backlight unit including a plurality of light emitting diode assemblies disposed on an inner surface of the cover bottom;
    Liquid crystal panel mounted on the backlight unit
    / RTI &gt;
    At least one of the plurality of light emitting diode assemblies emits light having a first spreading angle with respect to the liquid crystal panel and at least one of the plurality of light emitting diode assemblies has a second spreading angle greater than the first spreading angle with respect to the liquid crystal panel. And a light emitting diode assembly having a first spreading angle at a center of the cover bottom and a light emitting diode assembly having a second spreading angle at an edge of the cover bottom.
  10. The method according to any one of claims 1, 7, and 9,
    A support frame having a rectangular frame shape that borders the backlight unit, and a top cover which is edge-assembled to the support main and the cover bottom and rims the edge of the liquid crystal panel,
    And the backlight unit includes a transparent acrylic plate formed on the light emitting diode assembly and having a plurality of reflective dots attached thereto, and a plurality of optical sheets interposed on the transparent acrylic plate.
KR1020060051729A 2006-06-09 2006-06-09 Light Emitting Diode assembly and liquid crystal display module with the same KR101261881B1 (en)

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WO2014196704A1 (en) * 2013-06-03 2014-12-11 Samsung Electronics Co., Ltd. Illuminating apparatus and liquid crystal display having the same

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KR101509760B1 (en) * 2008-10-16 2015-04-08 엘지이노텍 주식회사 Light emitting diode package and fabrication method thereof, light emitting apparatus having the same
KR102011085B1 (en) * 2017-01-13 2019-08-14 보경엘앤씨 주식회사 Surface emitting type advertisement apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014196704A1 (en) * 2013-06-03 2014-12-11 Samsung Electronics Co., Ltd. Illuminating apparatus and liquid crystal display having the same
US9733516B2 (en) 2013-06-03 2017-08-15 Samsung Electronics Co., Ltd. Illuminating apparatus and liquid crystal display having the same
US10133119B2 (en) 2013-06-03 2018-11-20 Samsung Electronics Co., Ltd. Illuminating apparatus and liquid crystal display having the same

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