CN213935483U - Display panel formed by splicing COB modules - Google Patents

Abstract

The utility model discloses a display panel by concatenation of COB module formation, include the display panel who comprises a plurality of COB module concatenation, the COB module includes the COB base plate, sets up be used for the LED chip of light-emitting and the encapsulation of encapsulation usefulness on the COB base plate to glue, arranging of each pixel on the COB base plate adopts a style of calligraphy to arrange, and every pixel all contains the LED chip of R, G, B three kinds of colours, and every three pixel is formed as a whole and is arranged the pixel group, and the arrangement of every three pixel of arranging the pixel group is R/G/B, G B/R, B R/G. The utility model discloses a pixel to on the COB module is rearranged, fundamentally solves the COB module concatenation and forms display panel and the bright dark line problem that produces, can effectively improve display panel's display effect, improves production efficiency, and the cost that consumes moreover is low.

Description

Display panel formed by splicing COB modules

Technical Field

The utility model relates to a COB module concatenation technical field especially relates to a display panel who forms by the concatenation of COB module.

Background

COB products are favored due to the advantages of high reliability, high surface light source and protective performance, excellent display effect and the like. At present, COB product is at the in-process that pitch interval constantly dwindled, and because of there being the difference of refracting index between the epoxy of air and plastic envelope between the COB module, can splice between the module during white balance and form a colored line (trade custom called bright dark line), and bright dark line seriously influences COB's display effect, consequently eliminates bright dark line and is very important to display effect. Related treatment methods also exist at present, for example, chinese patent publication No. CN108630142A and publication No. 2018.10.9: a method for correcting the splicing seam of LED display screen features that a camera is used for recognizing the splicing seam and the brightness correction coefficient of the splicing seam is used for correcting, the LED lamp beads are corrected to display brightness, the problem of displaying bright and dark lines of the abutted seams is solved through the method, however, the correction process of the patent needs complex calculation, and the problem of bright and dark lines is only improved from the surface through coefficient correction display, the traditional pixel point arrangement mode is adopted, when the subsequent modules are spliced, R, B two light colors are still mixed at the spliced seam, the white light is not generated, and the color lines are generated at the spliced seam due to the difference of the refractive indexes of the epoxy resin and the air, therefore, each display screen for splicing needs to be corrected, the consumed cost is high, the problem of bright and dark lines is not solved fundamentally, the production efficiency is low, and the productivity is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a display panel who is formed by the concatenation of COB module, through rearranging the pixel on the COB module, fundamentally solves the concatenation of COB module and forms display panel and the bright dark line problem that produces, can effectively improve display panel's display effect, improves production efficiency, and the cost that consumes is low moreover.

The technical scheme of the utility model is that:

the utility model provides a display panel by COB module concatenation formation, includes the display panel who comprises a plurality of COB module concatenation, the COB module includes the COB base plate, sets up the encapsulation that is used for the LED chip of light-emitting and encapsulation on the COB base plate to glue, the arranging of each pixel on the COB base plate adopts a style of calligraphy to arrange, and every pixel all contains the LED chip of R, G, B three kinds of colours, and every three pixel is formed as a whole and is arranged the pixel group, and the arrangement of every three pixel of arranging the pixel group is R/G/B, G/B/R, B/R/G.

Furthermore, pixel points on the COB substrate form a plurality of complete pixel groups.

Furthermore, the arrangement of a plurality of the arrangement pixel groups adopts linear arrangement.

A plurality of pixel points that set up on the COB base plate can form the range pixel group of integral multiple, arrange the pixel group moreover and also adopt a style of calligraphy to arrange, and the COB module of being convenient for shows complete pixel, can splice the display panel who constitutes complete demonstration with arbitrary COB module simultaneously.

Further, the first pixel point of each arranged pixel group is arranged from top to bottom according to R, G, B.

Further, the second pixel of each arranged pixel group is arranged from top to bottom according to G, B, R.

Further, the third pixel point of each arranged pixel group is arranged from top to bottom according to B, R, G.

Furthermore, the COB substrate is made of FR-4 materials.

Further, the COB substrate is a multilayer HDI board.

Further, the packaging adhesive is made of epoxy resin.

Further, a plurality of display panel that COB module concatenation is constituteed installs and forms the LED display screen on the support bottom plate.

The utility model has the advantages that:

the utility model discloses an earlier three pixel of arranging, regard three pixel as a whole to form and arrange the pixel group, arrange R, G, B of the three pixel in the pixel group and arrange the method of arranging as follows: the first pixel point is arranged from top to bottom according to R, G, B, the second pixel point is arranged according to G, B, R, and the third pixel point is arranged according to B, R, G. No matter viewed from any direction, three adjacent pixels contain R, G, B three light colors, and R, G, B three light colors are mixed to emit white light, so that white balance is white light when viewed from any direction and angle, and color lines are prevented from being generated. The utility model discloses changing the scheme of arranging of each pixel red green blue, under the condition that does not increase any pixel, locating the bright dark line of reduction at COB module piece, promoting the display effect, fundamentally solves the COB module concatenation and forms display panel and the bright dark line problem that produces, can effectively improve display panel's display effect, improves production efficiency, and the cost that consumes moreover is low, has improved the market competition of product.

Drawings

Fig. 1 is a schematic view of a display panel formed by splicing conventional COB modules;

fig. 2 is a schematic view of a display panel formed by splicing COB modules according to the present invention;

in the figure: COB base plate 1, LED chip 2, pixel 3, arrange pixel group 4, piece 5.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1:

at present, the colour of every pixel 3 of traditional COB module is arranged from last LED chip 2 to being three kinds of colours of R G B down, its horizontal LED chip 2 is same colour and arranges, the display panel who constitutes by the concatenation of traditional COB module is shown in fig. 1, can see, there is splice 5 between two adjacent COB modules, the luminous colour of LED chip 2 in two horizontal square frames that 5 places circle at the splice is R, B respectively, vertical splice department produces not white light in the middle of mixing the back, can produce bright dark line.

So the utility model discloses a solve foretell bright dark line, carry out rearrangement to pixel 3 on the COB module, provide a display panel who is formed by the concatenation of COB module, as shown in FIG. 2, concrete embodiment is as follows:

including the display panel who comprises four COB module concatenations, the COB module includes COB base plate 1, the setting is used for the LED chip 2 of light-emitting and the encapsulation of encapsulation usefulness on COB base plate 1, the arrangement of each pixel 3 on COB base plate 1 adopts a style of calligraphy to arrange, every pixel 3 all contains R, G, B three kinds of colours LED chip 2, every three pixel 3 is as a whole and forms range pixel group 4, every range mode of arranging three pixel 3 of pixel group 4 is R/G/B, G/B/R, B/R/G, the first pixel 3 of every range pixel group 4 is arranged according to R, G, B from last down, second pixel 3 is arranged according to G, B, R from last down, third pixel 3 is arranged according to B, R, G from last down.

The utility model discloses an earlier three pixel 3 of arranging, regard three pixel 3 as a whole to form and arrange pixel group 4, arrange R, G, B of three pixel 3 in the pixel group 4 and arrange the method of arranging as follows: the first pixel 3 is arranged from top to bottom according to R, G, B, the second pixel 3 is arranged according to G, B, R, and the third pixel 3 is arranged according to B, R, G. As can be seen from fig. 2, at the seams 5, no matter seen from any direction, the adjacent three pixel points 3 all include R, G, B three light colors, R, G, B three light colors are mixed to emit white light, as shown by two horizontal boxes in fig. 2, the light emitting colors of the pixel points 3 at the transverse or vertical seams are the LED chips 2 of R, G, B three colors, and the mixed light is white light, which does not generate bright and dark lines, so that the white light is white light when viewed from any direction and angle, thereby avoiding the generation of color lines.

In this embodiment, the pixel points 3 on each COB substrate 1 form nine complete arrangement pixel groups 4, and the nine arrangement pixel groups 4 are arranged in a line. A plurality of pixel 3 that set up on COB base plate 1 can form the range pixel group 4 of integral multiple, arranges pixel group 4 in addition and also adopts a style of calligraphy to arrange, and the COB module of being convenient for shows complete pixel, can splice the display panel who constitutes complete demonstration with arbitrary COB module simultaneously.

In this embodiment, COB base plate 1 is the FR-4 material, and COB base plate 1 is multilayer HDI board, and whole COB module adopts epoxy to encapsulate.

In this embodiment, the display panel that four COB module concatenations are constituteed is installed and is formed the LED display screen on the support bottom plate.

In this embodiment, the display panel of the present invention can be applied to a display device, an apparatus, and a light-emitting panel.

In this embodiment, the quantity of splicing the COB module and the quantity of pixel 3 on COB base plate 1 can be set for according to actual production needs, and this embodiment only makes one of them example, and is not right the utility model discloses it limits.

The utility model discloses changing the scheme of arranging of each pixel red green blue, under the condition that does not increase any pixel, locating the bright dark line of reduction at COB module piece, promoting the display effect, fundamentally solves the COB module concatenation and forms display panel and the bright dark line problem that produces, can effectively improve display panel's display effect, improves production efficiency, and the cost that consumes moreover is low, has improved the market competition of product.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a display panel by COB module concatenation formation, its characterized in that includes the display panel who constitutes by the concatenation of a plurality of COB module, the COB module includes the COB base plate, sets up be used for the LED chip of light-emitting and the encapsulation of encapsulation usefulness on the COB base plate to glue, arranging of each pixel on the COB base plate adopts a style of calligraphy to arrange, and every pixel all contains the LED chip of R, G, B three kinds of colours, and every three pixel is formed as a whole and is arranged the pixel group, and every arrangement of arranging the three pixel of pixel group is R/G/B, G B/R, B R/G.

2. The display panel of claim 1, wherein the pixels on the COB substrate form a plurality of complete pixel groups.

3. The display panel according to claim 2, wherein the arrangement of the plurality of arranged pixel groups is in a line arrangement.

4. The display panel of claim 1, wherein the first pixel of each of the arranged pixel groups is arranged R, G, B from top to bottom.

5. The display panel of claim 4, wherein the second pixel of each of the arranged pixel groups is arranged from top to bottom at G, B, R.

6. The display panel of claim 5, wherein the third pixel of each of the arranged pixel groups is arranged from top to bottom at B, R, G.

7. The display panel of claim 1, wherein the COB substrate is FR-4 material.

8. The display panel according to claim 1, wherein the COB substrate is a multilayer HDI board.

9. The display panel according to claim 1, wherein the encapsulation adhesive is epoxy resin.

10. The display panel of claim 1, wherein a plurality of display panels formed by splicing the COB modules are mounted on a support base plate to form an LED display screen.

Images