CN110109298B - Display element, display module and manufacturing method thereof - Google Patents

Display element, display module and manufacturing method thereof Download PDF

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Publication number
CN110109298B
CN110109298B CN201910257752.9A CN201910257752A CN110109298B CN 110109298 B CN110109298 B CN 110109298B CN 201910257752 A CN201910257752 A CN 201910257752A CN 110109298 B CN110109298 B CN 110109298B
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display
substrate
display element
layer
control circuit
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CN110109298A (en
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黄景亮
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AU Optronics Corp
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AU Optronics Corp
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)

Abstract

A display element is suitable for being connected to a bearing substrate. The display element comprises a display substrate, a display layer, a control circuit and a connecting button. The display substrate has a first surface and a second surface opposite to each other, wherein the display layer is disposed on the first surface, and the connection button is disposed on the second surface and protrudes from the second surface. The control circuit is connected with and controls the display layer, extends from the display layer on the first surface to the connecting button on the second surface and penetrates through the connecting button. The connecting button is suitable for being tightly matched with the first accommodating hole of the bearing substrate so as to connect the display element with the bearing substrate. A display module and a manufacturing method are also provided.

Description

Display element, display module and manufacturing method thereof
Technical Field
The invention relates to a display element, a display module and a manufacturing method thereof; in particular, the present invention relates to a display device, a display module and a method for manufacturing the same, which can effectively complete a tiled image and provide a good tiled image.
Background
With the development of technology, Flat-panel display (Flat-panel display) technology has been widely applied to entertainment, consumer electronics, personal computers, mobile devices, and various medical, transmission, or industrial devices due to its light weight and thinness, and how to further improve Flat-panel display technology to meet the needs of more users and consumers is one of the main targets of development in this field.
In the above-mentioned fields of application, large displays can provide better information transfer functions in appropriate situations, especially in the application of commercials, movies, etc., and the demand for large displays has not been overlooked. However, as the yield of the panel is reduced with the increase of the area, the manufacturing yield of the flat panel display with the size of the display surface as high as 200 inches is further reduced, and the manufacturing cost is increased, which makes the panel unacceptable to the consumer.
Disclosure of Invention
The invention provides a display element which has a good splicing function and is used for effectively forming a large spliced picture.
The invention provides a display module which can form a good display picture by splicing and maintain good display quality.
The invention provides a manufacturing method which can manufacture a display module with a good spliced display picture.
The display element is suitable for being connected to the bearing substrate and comprises a display substrate, a display layer, a control circuit and a connecting button. The display substrate has a first surface and a second surface opposite to each other, wherein the display layer is disposed on the first surface, and the connection button is disposed on the second surface and protrudes from the second surface. The control circuit is connected with and controls the display layer, extends from the display layer on the first surface to the connecting button on the second surface and penetrates through the connecting button. The connecting button is suitable for being tightly matched with the first accommodating hole of the bearing substrate so as to connect the display element with the bearing substrate.
In one embodiment, the control circuit includes:
a circuit layer for transmitting common source signal, common ground signal, picture data signal or timing control signal; and
a protection layer covering the circuit layer to make the circuit layer between the display substrate and the protection layer.
In one embodiment, the distribution area of the connecting button on the second surface is substantially located around the second surface.
In one embodiment, the second surface is formed in a polygonal shape, and the distribution area of the connecting button on the second surface is substantially located at a corner of the second surface.
In one embodiment, the display device further includes:
and the fixing piece is arranged on the second surface, protrudes from the second surface and is suitable for being tightly matched with the second containing hole of the bearing substrate so as to connect the display element with the bearing substrate.
In one embodiment, the distribution area of the fixing member on the second surface is substantially located around the second surface.
In one embodiment, the second surface is formed in a polygonal shape, and the distribution area of the fixing member on the second surface is substantially located at a corner of the second surface.
In one embodiment, the plurality of fixing members are distributed on the second surface, and a distribution area of the connecting button on the second surface is different from a distribution area of the plurality of fixing members on the second surface.
In one embodiment, the fixing member is formed of a material having viscosity.
The display module of the invention is used for providing a display picture. The display module comprises a bearing substrate and at least one display element. The bearing substrate is provided with a bearing surface, and the bearing surface is provided with at least one first accommodating hole. The display element comprises a display substrate, a display layer, a control circuit and a connecting button. The display substrate is provided with a first surface and a second surface which are opposite to each other; the display layer is configured on the first surface; the connecting button is arranged on the second surface and protrudes from the second surface; the control circuit is connected with and controls the display layer. The control circuit extends from the display layer on the first surface to the connecting button on the second surface, and the control circuit passes through the connecting button. The connecting button is suitable for being tightly matched with the first accommodating hole of the bearing substrate so as to connect the display element with the bearing substrate. The display screen is formed by display light emitted from the display layer of the display element.
In one embodiment, the control circuit of the display device includes:
a line layer for transferring a common source signal, a common ground signal, a picture data signal or a timing control signal; and
a protection layer covering the circuit layer to make the circuit layer between the display substrate and the protection layer.
In one embodiment, the distribution area of the connecting buttons of the display element on the second surface is substantially located around the second surface.
In one embodiment, the second surface of the display substrate of the display device is formed in a polygonal shape, and the distribution area of the connecting button on the second surface is substantially located at a corner of the second surface.
In one embodiment, the display device further includes:
and the fixing piece is arranged on the second surface of the display substrate, protrudes from the second surface and is suitable for being tightly matched with the second containing hole of the bearing substrate so as to connect the display element with the bearing substrate.
In one embodiment, in the display device, the distribution area of the fixing member on the second surface is substantially located around the second surface.
In one embodiment, in the display device, the second surface of the display substrate is formed in a polygonal shape, and the distribution area of the fixing member on the second surface is substantially located at a corner of the second surface.
In one embodiment, in the display device, a plurality of the fixing members are distributed on the second surface, and a distribution area of the connecting button on the second surface is different from a distribution area of the plurality of the fixing members on the second surface.
In one embodiment, the fixing member of the display device is formed of a material having viscosity.
In one embodiment, the first receiving hole penetrates through the carrier substrate;
when the display element is connected to the bearing substrate, the control circuit passes through the containing hole through the connecting button.
The method for manufacturing the display module comprises the following steps: forming at least one display element; and inserting the connecting button of the display element into the first accommodating hole of the bearing substrate to enable the connecting button to be tightly matched with the first accommodating hole.
In one embodiment, the step of forming the display element includes:
forming a plurality of display layers on a light-transmitting substrate;
cutting the light-transmitting machine plate;
and respectively connecting a control circuit to one of the display layers on each cut partial light-transmitting substrate to form the display element.
In an embodiment, the method for manufacturing the display module further includes:
and a control circuit for connecting the display signal source to the plurality of display elements.
In view of the above, the display device of the present invention can provide a splicing function by the connecting buttons to form a large-sized spliced image. The display module of the invention can provide good spliced pictures. The manufacturing method of the invention can manufacture the display module which can provide good splicing pictures.
Drawings
FIG. 1A is a schematic perspective view of a display device and a carrier substrate according to a first embodiment of the present invention;
FIG. 1B is another perspective view of the display element in the first embodiment of the present invention;
FIG. 1C is a perspective view of a carrier substrate according to a first embodiment of the present invention;
FIG. 2A and FIG. 2B are schematic cross-sectional views of a display device and a carrier substrate according to a first embodiment of the invention;
FIG. 2C is a schematic cross-sectional view of a display device and a carrier substrate according to an embodiment of the invention;
FIG. 2D is a schematic view of a connection button according to an embodiment of the present invention;
FIGS. 3A-3B are schematic perspective views of a carrier substrate and a display module according to a first embodiment of the invention;
FIG. 4A is a schematic top view of a carrier substrate according to a second embodiment of the present invention;
FIG. 4B is a schematic perspective view of a display element according to a second embodiment of the present invention;
FIG. 4C is a schematic perspective view of a carrier substrate according to a second embodiment of the present invention;
FIG. 4D is a schematic perspective view of a display module according to a second embodiment of the present invention;
FIG. 5A is a schematic perspective view of a display element according to a third embodiment of the invention;
FIG. 5B is a schematic perspective view of a carrier substrate according to a third embodiment of the present invention;
FIG. 6A is a schematic perspective view of a display element according to a fourth embodiment of the present invention;
FIG. 6B is a diagram of a plurality of display elements according to a fourth embodiment of the present invention;
FIG. 7A is a schematic perspective view of a display module according to a fifth embodiment of the present invention;
fig. 7B is a schematic diagram of a plurality of display elements according to a fifth embodiment of the present invention.
Wherein, the reference numbers:
100,500,700,900,1010,1020 display element
110,510,710,910 display substrate
111 first surface
112,512,712,912 second surface
113 side edge
120 display layer
130 control circuit
131 circuit layer
132 protective layer
133 signal line
133C metal contact
140,540,740,940,1012,1022 connecting button
200,400,800 bearing substrate
200C line
201,401,801 first containing hole
202,402,802 carrying surface
202A-202F region
203 through hole
204,404,804 rims
405 second receiving hole
300,600,1000 display module
550,750,950,1013,1023 fixed part
Detailed Description
The display element and the display module provided by the invention can be display technology with active light emitting. For example, the display element and the display module provided by the present invention may be active Light Emitting display technologies such as Organic Light Emitting Diode (OLED), sub-millimeter Light Emitting Diode (Mini LED) or Micro Light Emitting Diode (Micro LED). The display element and the display module provided by the invention can also be a display technology with a reflective liquid crystal display or an electronic paper (ePaper) display. For example, the Display device and the Display module provided by the present invention may apply a reflective liquid crystal Display technology such as Super-twisted nematic (STN) Display, and may also apply an electronic paper Display technology such as Electrophoretic Display (EPD). The present invention is not limited to the above application field, and those skilled in the art can apply display technology with similar display effect to the display element and the display module proposed in the present invention without departing from the teaching of the present disclosure.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, components, or sections, these elements, components, or sections should not be limited by these terms. These terms are only used to distinguish one element, component, or section. Thus, a "first element," "first component," "first receiving hole" or "first portion" discussed below may also be referred to as a "second element," "second component," "second receiving hole" or "second portion" without departing from the teachings herein.
The detailed technical features of the display device and the display module according to the present invention will be described in several embodiments.
Fig. 1A is a perspective view of a display device and a carrier substrate according to a first embodiment of the invention. Referring to fig. 1A, in the first embodiment of the invention, the display device 100 may be disposed on a carrier substrate 200. The display device 100 includes a display substrate 110, a display layer 120, and a control circuit 130 connected to the display layer 120. The display layer 120 is formed of, for example, the above-mentioned OLED, mini LED, micro LED, STN or EPD to form a pixel, but the present invention is not limited thereto. The first surface 111 and the second surface 112 of the display substrate 110 are substantially opposite to each other and located on opposite sides of the display substrate 110. The display layer 120 is disposed on the first surface 111 of the display substrate 110, and the display layer 120 further includes a Thin Film Transistor (TFT) for driving a pixel or a Color filter (Color filter) for controlling a Color, for example, but the invention is not limited thereto. In other words, the display device 100 of the present embodiment is a device that can display the display layer 120 on the display substrate 110 by the display signal input from the outside through the control circuit 130.
In the present embodiment, the control circuit 130 extends from the display layer 120 on the first surface 111 to the second surface 112. Specifically, the control Circuit 130 is formed by, for example, a Flexible Printed Circuit (FPC), and in the present embodiment, the control Circuit 130 bypasses the side 113 of the substrate 110 from the first surface 111 and bends to the back surface (i.e., the second surface 112) of the display substrate 110.
In other embodiments of the present invention, the control line may be directly formed by the FPC for transferring the common source signal, the common ground signal, the picture data signal or the timing control signal to the display layer. In the first embodiment of the present invention, the control circuit 130 further includes a circuit layer 131 and a protection layer 132. The line layer 131 is, for example, an FPC for transmitting a common source signal, a common ground signal, a picture data signal, or a timing control signal; the passivation layer 132 covers the circuit layer 131, such that the circuit layer 131 is located between the display substrate 110 and the passivation layer 132. The material of the protection layer 132 is, for example, an elastic insulating material, preferably a resin-based or plastic-based insulating material. Accordingly, the protective layer 132 may provide a protective effect at one side of the line layer 131, so that the line layer 131 may be protected between the protective layer 132 and the substrate 110.
Fig. 1B is another perspective view of the display element in the first embodiment of the present invention. Referring to fig. 1B, the control circuit 130 of the display device 100 according to the first embodiment of the invention extends from the first surface 111 of the display substrate 110 to the second surface 112 opposite to the display layer 120, and the display device 100 further includes a connection button 140 disposed on the second surface 112 of the display substrate 110. The connection button 140 is formed by a control chip of the liquid crystal layer 120, for example, and is preferably a packaged control chip. The connection button 140 of the present embodiment protrudes from the second surface 112 and is connected to the control circuit 130. Specifically, the control circuit 130 passes through the connection button 140 to form a signal line or a signal contact, so that the signal for driving the display device 100 can be transmitted to the display layer 120 through the signal line, the connection button 140, and the control circuit 130 in sequence. Here, the aspect of the control circuit 130 between the connection button 140 (i.e., the control chip) and the display layer 120 and the aspect between the connection button 140 and the external signal source may be adjusted according to the relationship between the chip and the signal circuit according to the needs of those having ordinary skill in the art, and the invention is not limited thereto.
The connecting button 140 of the present embodiment is suitable for tightly fitting with a first receiving hole of a carrier substrate. Specifically, referring to fig. 1C, the carrier substrate 200 of the present embodiment has a first accommodating hole 201, and the first accommodating hole 201 is formed on the carrier surface 202. The carrier substrate is adapted to carry the display device 100, and when the display device 100 is placed on the carrier panel 200, that is, the second surface 112 of the display substrate 110 of the display device 100 is placed towards the carrier surface 202, the connecting button 140 is adapted to be tightly fitted with the first receiving hole 201, so that the display device 100 is connected with the carrier substrate 200. The first accommodating hole 201 may pass through the carrier substrate 200 to pass the signal line and connect with the signal source, or may further be disposed with a signal connection end in the first accommodating hole, so that the signal line is directly connected with the signal source through the connection end, which is not limited in the invention. The first receiving hole 201 penetrating the carrier substrate 200 will be described in detail below as an example.
FIG. 2A and FIG. 2B are schematic cross-sectional views of a display device and a carrier substrate according to a first embodiment of the invention; specifically, fig. 2A and 2B are schematic cross-sectional views corresponding to a section line I in fig. 1A. Referring to fig. 2A, in the present embodiment, a display layer 120 is disposed on one side of a display substrate 110 of a display device 100; the connection button 140 is disposed on the other side and connected to the display layer 120 through the control circuit 130, wherein the control circuit 130 has a circuit layer 131 for transmitting signals to the display layer 120. The substrate 200 forms a first receiving hole 201 on the carrying surface, so that the display device 100 can be placed on the carrying surface 202 of the carrying substrate 200 along the direction d1, for example.
Referring to fig. 2B, when the display device 100 is placed on the carrier substrate 200, the connection button 140 and the first receiving hole 201 are tightly fitted to each other, so that the display device 100 is connected to the carrier substrate 200. Specifically, the connection button 140 of the present embodiment is, for example, an element that can be inserted into the first accommodation hole 201 and tightly fit with the first accommodation hole, and the first accommodation hole 201 is further connected with a through hole 203 penetrating through the carrier substrate 200, so that the signal line 133 from the connection button 140 passes through and is connected with the signal source. As can be seen from the above, the carrier substrate 200 of the present embodiment can be connected to the connecting buttons 140 of the display devices 100 through the first accommodating holes 201, and when the carrying surface 202 of the carrier substrate 200 is large enough, the carrier substrate 200 can easily fix a plurality of display devices 100. Meanwhile, since the control lines 130 of the respective display elements 100 extend to the rear of the display elements 100, the seams between the display elements 100 can be minimized to form a display module that can provide a good tiled picture.
On the other hand, after a liquid crystal layer, a TFT array and a color filter on the back surface are formed, the liquid crystal layer is cut into a plurality of units, and a control chip is connected by a JI process, whereby a plurality of the display elements 100 can be completed. And then the display module can be completed by combining with the carrier substrate 200. By the manufacturing method of the display module, the assembly of machine components can be omitted, and the manufacturing efficiency is improved. Meanwhile, the size of the machine component reduces the width of the boundary in the display module so as to improve the combination of the spliced pictures.
Meanwhile, the control circuit 130 may further form a protection layer 132 to protect the circuit in the joint line, and reduce friction between the circuit layer 131 and the carrier substrate 200, thereby further reducing loss of the display element 100. It should be noted that the drawings referred to in the above embodiments are enlarged to show the proportions of the control lines, so as to clearly illustrate the technical features of the display device provided by the present invention, which are not intended to limit the present invention, and those skilled in the art can easily reduce the width and thickness of the control lines 130 formed by the FPC around the display device.
In an embodiment of the present invention, the signal lines 133 of the display device 100 may form a plurality of metal contacts on a side of the connection button 140 facing the carrier substrate 200 through the connection button 140. For example, referring to fig. 2C, a cross-sectional view of the display device and the carrier substrate according to an embodiment of the invention is shown, wherein the connecting button 140 of the display device 100 is inserted into the first accommodating hole 201. On the display substrate 110, the display layer 120 is connected through the control line 130, and the signal is transmitted through the line layer 131, and the line layer 131 is protected by the protective layer 132. The circuit layer 131 is connected to the metal contact 133C formed on the side of the connection button 140 facing the substrate 200, so that the display device 100 can be connected to the circuit 200C through the metal contact 133C when being combined with the carrier substrate 200, and connected to a signal source. Referring to the schematic view of the connection button 140 in fig. 2D, the metal contacts 133C are distributed on the surface of the connection button 140 to provide proper connection effect.
The manner in which the carrier substrate 200 carries the plurality of display devices 100 in the above embodiments will be further illustrated in the following drawings.
Fig. 3A-3B are perspective schematic views of a carrier substrate and a display module according to a first embodiment of the invention. Referring to fig. 3A, in the first embodiment of the invention, the carrier substrate 200 may have enough space to accommodate six display elements, for example. Specifically, the carrying surface 202 of the carrying substrate 200 is divided into six areas 202A-202F, and a first receiving hole 201 is formed in each of the areas 202A-202F. By the first accommodating holes 201, the carrier substrate 200 can be connected to a plurality of display elements 100 in the frame 204 of the carrier substrate 200 to form a display module consisting of six display elements 100.
Referring to fig. 3B, the display module 300 includes a plurality of display devices 100 and a carrier substrate 200, and the protective layer 132 of the control circuit 130 of the display device 100 can avoid rubbing with the carrier substrate 200. Specifically, in the present embodiment, the protective layer 132 of the display device 100 can avoid rubbing against the frame 204 of the carrier substrate 200. As can be seen from the above, the display module 300 can be easily completed by the carrier substrate 200 and the display devices 100, and can provide a good tiled display.
The position of the connection button of the display device disposed on the surface of the display substrate is not limited to the position of the connection button 140 on the second surface 112 in the above embodiments, and in other embodiments, the connection button may be further disposed around the second surface, and is preferably disposed at a corner of the second surface. Meanwhile, in other embodiments, the display element may be further fixed to the carrier substrate by a fixing member. Fig. 4A is a schematic top view of a carrier substrate according to a second embodiment of the invention. Referring to fig. 4A, in the second embodiment of the invention, a carrying surface 402 of a carrying substrate 400 has a first containing hole 401 and a plurality of second containing holes 405. The first receiving holes 401 in the frame 404 are used to tightly fit with the connecting buttons of the display element; these second receiving holes 404 are intended to fit tightly with the same fixing elements as the display elements provided on the second surface.
Fig. 4B is a perspective schematic view of a display element according to a second embodiment of the present invention. Referring to fig. 4B, in the second embodiment of the invention, the second surface 512 (i.e., the surface facing away from the display layer) of the substrate 510 of the display device 500 has a connection button 540 and a plurality of fixing members 550, and the fixing members 550 protrude from the second surface 512 like the connection button 540.
The connecting buttons 540 and the fixing members 550 of the present embodiment are substantially located at the corners of the second surface 512 of the display element 500, and therefore are adapted to be adjacent to the connecting buttons 540 and the fixing members 550 of another display element 500 to be tightly fitted with the first receiving holes 401 and the second receiving holes 405 of the carrier substrate 400.
Fig. 4C is a perspective view of a carrier substrate according to a second embodiment of the invention. Referring to fig. 4C, in the area surrounded by the frame 404, the carrying surface 402 forms a plurality of first receiving holes 401 for receiving the connecting buttons 540 of the display unit 500. Specifically, in the present embodiment, the connecting buttons 540 of the four display units 500 may be spliced together and then tightly fit with the first receiving holes 401, and the fixing members 550 of the display units 500 may be independently tightly fit with the second receiving holes 405 at the corners of the supporting surface 402, or two fixing members 550 may be tightly fit with the second receiving holes 405 at the edges of the supporting surface 402, or four fixing members 550 may be combined together in the area near the middle of the supporting surface 402 and then tightly fit with the second receiving holes 405.
Fig. 4D is a perspective view of a display module according to a second embodiment of the invention. Referring to fig. 4D, the display elements 500 are connected to the carrier substrate 400 by the tight fit between the connecting buttons 540 and the first receiving holes 401 and the tight fit between the fixing members 550 and the second receiving holes, so as to complete the display module 600. Meanwhile, since the connection buttons of the display elements 500 and the adjacent display elements 500 can be disposed in the same first accommodation hole, the display module 600 can easily provide display signals to the display elements 500 by an external signal source. Furthermore, the carrier substrate 400 may further include signal connection terminals disposed in the first receiving holes 401, so that signal lines of the display module 600 can be completed more easily.
On the other hand, in the second embodiment, the second surface 512 of the display substrate 510 of the display device 500 is formed in a rectangular shape, and the connecting button 540 and the fixing member 550 are disposed at the corner of the second surface 512, but the invention is not limited thereto. Fig. 5A is a schematic perspective view of a display element in a third embodiment of the present invention. Referring to fig. 5A, the fixing members 750 of the display device 700 may be distributed on the second surface 712 of the display substrate 710 except for the connecting buttons 740.
Fig. 5B is a perspective view of a carrier substrate according to a third embodiment of the invention. Referring to fig. 5B, the carrier substrate 800 has a plurality of first receiving holes 801 formed on the carrier surface 802, and a plurality of second receiving holes 805 distributed in other areas, so that the display devices 700 can be more stably connected and fixed by the tight fit between the fixing members 750 and the second receiving holes 805.
The fixing member 750 is formed of a rigid material or an elastic material, preferably a resin or plastic material, and may also be a material with adhesive property to assist the adhesion between the carrier substrate 800 and the display device 700. On the other hand, the height of the fixing member 750 protruding from the bearing surface 802 falls within a range of 0.1 mm to 100 mm, but the present invention is not limited thereto. The above features are not limited to the fixing member 750 of the third embodiment of the present invention, and those skilled in the art can apply to the fixing members of the other embodiments in the present specification.
The display element provided by the invention can also be presented in different shapes so as to splice spliced pictures in different shapes. Fig. 6A is a schematic perspective view of a display element according to a fourth embodiment of the present invention. Referring to fig. 6A, the second surface 912 of the display substrate 910 of the display device 900 is formed in a hexagonal shape, the connection button 940 is disposed at one corner thereof to transmit the display signal, and the plurality of fixing members 950 are disposed at the other corners of the second surface 912.
Fig. 6B is a schematic view of a plurality of display elements according to a fourth embodiment of the present invention being tiled with each other. Referring to fig. 6B, by the arrangement of the fixing members 950, the fixing members 950 of adjacent display elements 900 can be spliced with each other (three are taken as an example); the connecting buttons 940 of adjacent display elements 900 can also be spliced with each other (three are taken as an example here), so that the display elements 900 can be connected to a carrier substrate through the fixing members 950 and the connecting buttons 940 to form a display module with a specific shape of a display surface.
The display element provided by the invention can also form a display module with a non-planar and three-dimensional display surface. Fig. 7A and 7B are schematic views of a display module and a plurality of display elements according to a fifth embodiment of the invention. Referring to fig. 7A, the display module 1000 may be formed in a spherical shape by the connection manner of the supporting substrate and the display device. Specifically, the display elements 1010,1020 can be spliced along a spherical surface by the spherical carrier substrate to complete the display module 1000. Meanwhile, referring to fig. 7B, the fixing member 1013 of the display element 1010 can be spliced with the fixing member 1013 of the adjacent display element 1010 or with the fixing member 1023 of the adjacent display element 1020, so as to be fixed with the receiving hole of the spherical bearing substrate; the connection buttons 1012 of the display element 1010 can be spliced with the connection buttons 1012 of the adjacent display element 1010 or spliced with the connection buttons 1022 of the adjacent display element 1020, so as to be fixed with the containing holes of the ball bearing substrate and transmit display signals.
In summary, the display device of the present invention can provide sub-frames for users to splice, and form a display module with a good spliced frame. The manufacturing method provided by the invention can complete a good display module by the connecting button of the display element and the bearing substrate.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (22)

1. A display device adapted to be connected to a carrier substrate, the display device comprising:
the display device comprises a display substrate, a first substrate and a second substrate, wherein the display substrate is provided with a first surface and a second surface opposite to the first surface;
a display layer disposed on the first surface;
a control circuit connected to and controlling the display layer; and
a connecting button directly disposed on the second surface and protruding from the second surface;
the control circuit extends from the display layer on the first surface, bypasses the side edge of the display substrate and is bent to the connecting button on the second surface, and the control circuit passes through the connecting button which is suitable for being tightly matched with the first containing hole of the bearing substrate so as to connect the display element with the bearing substrate;
wherein, the part of the control circuit which bypasses the side edge is attached to the side edge.
2. The display element of claim 1, wherein the control circuitry comprises:
a circuit layer for transmitting common source signal, common ground signal, picture data signal or timing control signal; and
a protection layer covering the circuit layer to make the circuit layer between the display substrate and the protection layer.
3. The display element according to claim 1, wherein the distribution area of the connection button on the second surface is substantially located around the second surface.
4. The display device of claim 1, wherein the second surface is formed in a polygon shape, and the connecting buttons are substantially located at corners of the second surface in a distribution area of the second surface.
5. The display element of claim 1, further comprising:
and the fixing piece is arranged on the second surface, protrudes from the second surface and is suitable for being tightly matched with the second containing hole of the bearing substrate so as to connect the display element with the bearing substrate.
6. The display element of claim 5, wherein the distribution of the fixing elements on the second surface is substantially around the second surface.
7. The display device of claim 5, wherein the second surface is formed in a polygonal shape, and the distribution area of the fixing member on the second surface is substantially located at a corner of the second surface.
8. The display device of claim 5, wherein a plurality of the fixing members are distributed on the second surface, and a distribution area of the connecting button on the second surface is different from a distribution area of the plurality of the fixing members on the second surface.
9. The display element according to claim 5, wherein the fixing member is formed of a material having adhesiveness.
10. A display module for providing a display image, comprising:
a bearing substrate having a bearing surface, the bearing surface having at least a first accommodating hole; and
at least one display element comprising:
the display device comprises a display substrate, a first substrate and a second substrate, wherein the display substrate is provided with a first surface and a second surface opposite to the first surface;
a display layer disposed on the first surface;
a control circuit connected to and controlling the display layer; and
a connecting button directly disposed on the second surface and protruding from the second surface;
the control circuit extends from the display layer on the first surface, bypasses the side edge of the display substrate and is bent to the connecting button on the second surface, and the control circuit passes through the connecting button which is suitable for being tightly matched with the first containing hole of the bearing substrate so as to connect the display element with the bearing substrate;
wherein, the part of the control circuit which bypasses the side edge is attached to the side edge; the display frame is formed by display light emitted by the display layer of the at least one display element.
11. The display module of claim 10, wherein the control circuitry of the display element comprises:
a line layer for transferring a common source signal, a common ground signal, a picture data signal or a timing control signal; and
a protection layer covering the circuit layer to make the circuit layer between the display substrate and the protection layer.
12. The display module of claim 10, wherein the distribution of the connection buttons of the display element on the second surface is substantially around the second surface.
13. The display module as claimed in claim 10, wherein the second surface of the display substrate of the display device is formed in a polygonal shape, and the distribution area of the connecting buttons on the second surface is substantially located at the corners of the second surface.
14. The display module of claim 10, wherein the display element further comprises:
and the fixing piece is arranged on the second surface of the display substrate, protrudes from the second surface and is suitable for being tightly matched with the second containing hole of the bearing substrate so as to connect the display element with the bearing substrate.
15. The display module of claim 14, wherein the distribution of the fixing member on the second surface is substantially around the second surface in the display element.
16. The display module as claimed in claim 14, wherein in the display device, the second surface of the display substrate is formed in a polygonal shape, and the distribution area of the fixing member on the second surface is substantially located at a corner of the second surface.
17. The display module as claimed in claim 14, wherein in the display element, a plurality of the fixing members are distributed on the second surface, and a distribution area of the connecting button on the second surface is different from a distribution area of the plurality of the fixing members on the second surface.
18. The display module of claim 14, wherein the securing member of the display element is formed of a tacky material.
19. The display module of claim 10, wherein the first receiving hole passes through the carrier substrate;
when the display element is connected to the bearing substrate, the control circuit passes through the containing hole through the connecting button.
20. A method of manufacturing a display module according to any one of claims 10 to 19, comprising:
forming the at least one display element; and
the connecting button of the display element is inserted into the first accommodating hole of the bearing substrate, so that the connecting button is tightly matched with the first accommodating hole.
21. The method of claim 20, wherein the step of forming the display element comprises:
forming a plurality of display layers on a light-transmitting substrate;
cutting the transparent substrate;
and respectively connecting a control circuit to one of the display layers on each cut partial light-transmitting substrate to form the display element.
22. The method of manufacturing of claim 20, further comprising:
and a control circuit for connecting the display signal source to the plurality of display elements.
CN201910257752.9A 2018-04-18 2019-04-01 Display element, display module and manufacturing method thereof Active CN110109298B (en)

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