CN117253868A - Dimmer and display device - Google Patents

Dimmer and display device Download PDF

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Publication number
CN117253868A
CN117253868A CN202210651718.1A CN202210651718A CN117253868A CN 117253868 A CN117253868 A CN 117253868A CN 202210651718 A CN202210651718 A CN 202210651718A CN 117253868 A CN117253868 A CN 117253868A
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CN
China
Prior art keywords
signal output
pin pad
output pin
driving signal
pad
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Pending
Application number
CN202210651718.1A
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Chinese (zh)
Inventor
周伟
龚立伟
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Chongqing Kangjia Optoelectronic Technology Co ltd
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Chongqing Kangjia Optoelectronic Technology Co ltd
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Priority to CN202210651718.1A priority Critical patent/CN117253868A/en
Publication of CN117253868A publication Critical patent/CN117253868A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
    • H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
    • H01L23/495—Lead-frames or other flat leads
    • H01L23/49541—Geometry of the lead-frame
    • H01L23/49565—Side rails of the lead frame, e.g. with perforations, sprocket holes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
    • H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
    • H01L23/495—Lead-frames or other flat leads
    • H01L23/49517—Additional leads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
    • H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
    • H01L23/495—Lead-frames or other flat leads
    • H01L23/49575—Assemblies of semiconductor devices on lead frames

Abstract

The invention relates to a dimmer and a display device. The dimmer comprises: the circuit comprises a substrate, a control signal input pin pad, a control signal output pin pad, a power supply voltage pin pad, a grounding pin pad and a plurality of driving signal output pin pads; wherein, a processing module is arranged in the substrate and is used for generating a plurality of driving signals based on the control signals; the substrate is provided with a first surface and a second surface which are opposite; the control signal input pin pad, the control signal output pin pad, the power supply voltage pin pad, the ground pin pad and the plurality of driving signal output pin pads are all arranged on the first surface of the substrate at intervals, the control signal input pin pad and the control signal output pin pad are arranged at intervals along the first direction, and the center of the control signal input pin pad and the center of the control signal output pin pad are located on the same straight line.

Description

Dimmer and display device
Technical Field
The present disclosure relates to integrated circuit technology, and in particular, to a dimmer and a display device.
Background
Along with the development of semiconductor technology, in the traditional driving circuit, a phenomenon that a plurality of metal circuits are staggered exists, in order to avoid short circuit caused by overlap joint of the metal circuits, two layers of metal circuits are generally designed, the metal circuits are disconnected through an insulating layer, a common method is that a first metal circuit layer is firstly made, then an insulating layer is made on the surface of the first metal circuit layer, and finally a metal circuit layer is made on the surface of the insulating layer; the method needs to open a multi-layer photomask, and needs to repeatedly carry out the process flows of exposure, development and the like, has complex process and wastes a large amount of time, manpower and financial resources.
Disclosure of Invention
In view of the above-mentioned shortcomings, it is necessary to provide a dimmer and a display device for the above-mentioned problem of line interleaving.
To achieve the above object, in one aspect, the present application provides a dimmer, comprising: the circuit comprises a substrate, a control signal input pin pad, a control signal output pin pad, a power supply voltage pin pad, a grounding pin pad and a plurality of driving signal output pin pads; wherein,
a processing module is arranged in the substrate and is used for generating a plurality of driving signals based on the control signals; the substrate is provided with a first surface and a second surface which are opposite;
the control signal input pin pad, the control signal output pin pad, the power supply voltage pin pad, the grounding pin pad and the driving signal output pin pads are all arranged on the first surface of the substrate at intervals, the control signal input pin pad and the control signal output pin pad are arranged at intervals along a first direction, and the center of the control signal input pin pad and the center of the control signal output pin pad are positioned on the same straight line; the control signal input pin pad, the power supply voltage pin pad, the grounding pin pad and the driving signal output pin pads are electrically connected with the processing module; the control signal output pin pad is electrically connected with the control signal input pin pad.
The dimmer is characterized in that a processing module is arranged in a substrate and used for generating a plurality of driving signals based on control signals, and a control signal input pin pad, a power supply voltage pin pad, a grounding pin pad and a plurality of driving signal output pin pads are electrically connected with the processing module; the control signal output pin bonding pad is electrically connected with the control signal input pin bonding pad, and the processing module is arranged in the substrate, so that the winding of connecting wires between the processing module and each bonding pad can be avoided, and the structure of the dimmer is more regular and concise; the substrate is provided with a first surface and a second surface which are opposite, the control signal input pin pad, the control signal output pin pad, the power supply voltage pin pad, the grounding pin pad and the plurality of driving signal output pin pads are all arranged on the first surface of the substrate at intervals, and the control signal input pin pad and the control signal output pin pad are arranged at intervals along a first direction, and all the pads are orderly arranged, so that wiring is convenient for the subsequent process; the center of the control signal input pin pad and the center of the control signal output pin pad are positioned on the same straight line, so that the problem of line staggering during the subsequent wiring process can be reduced.
In one embodiment, the plurality of driving signal output pin pads includes: the first driving signal output pin pad, the second driving signal output pin pad, the third driving signal output pin pad and the fourth driving signal output pin pad.
In one embodiment, the first driving signal output pin pad, the control signal output pin pad, the power supply voltage pin pad and the second driving signal output pin pad are sequentially arranged at intervals along the second direction, and the center of the first driving signal output pin pad, the center of the control signal output pin pad, the center of the power supply voltage pin pad and the center of the second driving signal output pin pad are located on the same straight line; the third driving signal output pin pad, the control signal input pin pad, the grounding pin pad and the fourth driving signal output pin pad are sequentially arranged at intervals along the second direction, and the center of the third driving signal output pin pad, the center of the control signal input pin pad, the center of the grounding pin pad and the center of the fourth driving signal output pin pad are positioned on the same straight line; the first driving signal output pin bonding pads and the third driving signal output pin bonding pads are correspondingly arranged at intervals along the first direction; the power supply voltage pin bonding pads and the grounding pin bonding pads are correspondingly arranged at intervals along a first direction, and the second driving signal output pin bonding pads and the fourth driving signal output pin bonding pads are correspondingly arranged at intervals along the first direction; the second direction is orthogonal to the first direction.
The present application also provides a display device including:
the dimmer of any one of the above embodiments;
the light-emitting chip comprises a first electrode and a second electrode, and a gap is reserved between the first electrode and the second electrode; wherein,
the first electrode is electrically connected with the driving signal output pin bonding pad; the control signal input pin bonding pad is electrically connected with a control signal source; the power supply voltage pin bonding pad is connected with a first power supply; the grounding pin pad is grounded; the second electrode is connected with a second power supply.
The display device comprises a dimmer, wherein a processing module is arranged in a substrate of the dimmer and is used for generating a plurality of driving signals based on control signals, and a control signal input pin pad, a power supply voltage pin pad, a grounding pin pad and a plurality of driving signal output pin pads are electrically connected with the processing module; the control signal output pin bonding pad is electrically connected with the control signal input pin bonding pad, and the processing module is arranged in the substrate, so that the winding of connecting wires between the processing module and each bonding pad can be avoided, and the structure of the dimmer is more regular and concise; the substrate is provided with a first surface and a second surface which are opposite, the control signal input pin pad, the control signal output pin pad, the power supply voltage pin pad, the grounding pin pad and the plurality of driving signal output pin pads are all arranged on the first surface of the substrate at intervals, and the control signal input pin pad and the control signal output pin pad are arranged at intervals along a first direction, and all the pads are orderly arranged, so that wiring is convenient for the subsequent process; the center of the control signal input pin pad and the center of the control signal output pin pad are positioned on the same straight line, so that the problem of line staggering during the subsequent wiring process can be reduced; the dimmer is connected with the light-emitting chip, the structure of the obtained display device is regular and concise, the display device can be helped to better arrange various wires inside, and the probability of short circuit occurrence caused by circuit staggering is reduced.
In one embodiment, the number of dimmers is a plurality; the dimmers are arranged at intervals along the first direction, and the centers of all the control signal input pin pads and the centers of all the control signal output pin pads are positioned on the same straight line;
the light emitting chips are respectively positioned at two opposite sides of the dimmer along the second direction and are distributed at intervals with the dimmer; the second direction is orthogonal to the first direction; the chips on the same side of the dimmer are arranged at intervals along the first direction.
In one embodiment, the plurality of driving signal output pin pads includes: the first driving signal output pin pad, the second driving signal output pin pad, the third driving signal output pin pad and the fourth driving signal output pin pad;
the first driving signal output pin bonding pad, the second driving signal output pin bonding pad, the third driving signal output pin bonding pad and the fourth driving signal output pin bonding pad in each dimmer are respectively connected with the first electrodes of different light emitting chips in a one-to-one correspondence manner through different first connecting wires;
the grounding pin bonding pads in each dimmer are grounded through a second connecting wire and a plurality of third connecting wires, wherein the second connecting wires are grounded; one end of each third connecting wire is connected with the second connecting wire, and the other end of each third connecting wire is connected with the grounding pin bonding pads in each dimmer in a one-to-one correspondence manner;
the power supply voltage pin bonding pads in each dimmer are connected with the first power supply through a fourth connecting wire and a plurality of fifth connecting wires, wherein the fourth connecting wire is connected with the first power supply; one end of each fifth connecting wire is connected with the fourth connecting wire, and the other end of each fifth connecting wire is connected with the power supply voltage pin bonding pads in each dimmer in a one-to-one correspondence manner; the control signal input pin pad of the dimmer and the control signal output pin pad of the adjacent other dimmer are connected via a sixth connection line.
In one embodiment, the first connection line is located between the dimmer and the light emitting chip; the second connecting wire is positioned between the dimmer and the light-emitting chip, and the third connecting wire is positioned outside the dimmer; the fourth connecting wire is positioned between the dimmer and the light-emitting chip, and the fifth connecting wire is positioned outside the dimmer; the sixth connection line is located between adjacent dimmers.
In one embodiment, the first driving signal output pin pad, the control signal output pin pad, the power supply voltage pin pad and the second driving signal output pin pad are sequentially arranged at intervals along the second direction, and the center of the first driving signal output pin pad, the center of the control signal output pin pad, the center of the power supply voltage pin pad and the center of the second driving signal output pin pad are located on the same straight line; the third driving signal output pin pad, the control signal input pin pad, the grounding pin pad and the fourth driving signal output pin pad are sequentially arranged at intervals along the second direction, and the center of the third driving signal output pin pad, the center of the control signal input pin pad, the center of the grounding pin pad and the center of the fourth driving signal output pin pad are positioned on the same straight line; the first driving signal output pin bonding pads and the third driving signal output pin bonding pads are correspondingly arranged at intervals along the first direction; the power supply voltage pin bonding pads and the grounding pin bonding pads are correspondingly arranged at intervals along a first direction, and the second driving signal output pin bonding pads and the fourth driving signal output pin bonding pads are correspondingly arranged at intervals along the first direction;
the fourth connecting wire is positioned at one side of the dimmer away from the second connecting wire;
the second connecting wire spans each light emitting chip on the same side of the dimmer through a gap between the first electrode and the second electrode in the light emitting chips on the same side of the dimmer; the fourth connecting wire spans each light emitting chip on the same side of the dimmer via a gap between the first electrode and the second electrode in the light emitting chips on the same side of the dimmer; the fifth connection line is connected with the power supply voltage pin pad via the first surface of the dimmer.
In one embodiment, a width of a gap between the first electrode and the second electrode of the same light emitting chip is larger than a width of the second connection line and a width of the fourth connection line; the width of the gap between the first electrode and the second electrode of the same light emitting chip is 100-200 μm, the width of the second connecting wire is 10-100 μm, and the width of the fourth connecting wire is 10-100 μm.
In one embodiment, the first connection line, the second connection line, the third connection line, the fourth connection line, the fifth connection line, and the sixth connection line are formed by etching a same metal layer.
Drawings
In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings required for the descriptions of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a dimmer according to an embodiment;
fig. 2 is a schematic structural diagram of a dimmer provided in another embodiment;
FIG. 3 is a schematic diagram of a display device according to an embodiment;
fig. 4 is a schematic structural view of a display device provided in another embodiment;
fig. 5 is a schematic structural view of a display device provided in still another embodiment.
Reference numerals illustrate:
1, a substrate; 2. a control signal input pin pad; 3. a control signal output pin pad; 4. a supply voltage pin pad; 5. a ground pin pad; 6. a driving signal output pin pad; 61. a first driving signal output pin pad; 62. a second driving signal output pin pad; 63. a third driving signal output pin pad; 64. a fourth driving signal output pin pad; 10. a dimmer; 20. a light emitting chip; 201. a first electrode; 202. a second electrode; 30. a control signal source; 40. a first power supply; 50. a second power supply; 11. a first connecting line; 22. a second connecting line; 33. a third connecting line; 44. a fourth connecting line; 55. a fifth connecting line; 66. and a sixth connecting line.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that when an element or layer is referred to as being "on," "adjacent," "connected to," or "coupled to" another element or layer, it can be directly on, adjacent, connected, or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" another element or layer, there are no intervening elements or layers present. It will be understood that, although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers, doping types and/or sections, these elements, components, regions, layers, doping types and/or sections should not be limited by these terms.
Spatially relative terms, such as "under", "below", "beneath", "under", "above", "over" and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "below" and "under" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Also, as used herein, the term "and/or" includes any and all combinations of the associated listed items.
Embodiments of the invention are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of the invention, such that variations of the illustrated shapes due to, for example, manufacturing techniques and/or tolerances are to be expected. Thus, embodiments of the present invention should not be limited to the particular shapes of the regions illustrated herein, but rather include deviations in shapes that result, for example, from manufacturing techniques. For example, an implanted region shown as a rectangle typically has rounded or curved features and/or implant concentration gradients at its edges rather than a binary change from implanted to non-implanted regions. Also, a buried region formed by implantation may result in some implantation in the region between the buried region and the surface over which the implantation is performed. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of the invention.
Along with the development of semiconductor technology, in the traditional driving circuit, a phenomenon that a plurality of metal circuits are staggered exists, in order to avoid short circuit caused by overlap joint of the metal circuits, two layers of metal circuits are generally designed, the metal circuits are disconnected through an insulating layer, a common method is that a first metal circuit layer is firstly made, then an insulating layer is made on the surface of the first metal circuit layer, and finally a metal circuit layer is made on the surface of the insulating layer; the method needs to open a multi-layer photomask, and needs to repeatedly carry out the process flows of exposure, development and the like, has complex process and wastes a large amount of time, manpower and financial resources.
Based on this, it is necessary to provide a dimmer and a display device for the above-mentioned problem of line interleaving.
To achieve the above object, as shown in fig. 1, the present application provides a dimmer, including: a substrate 1, a control signal input pin pad 2, a control signal output pin pad 3, a power supply voltage pin pad 4, a ground pin pad 5, and a plurality of driving signal output pin pads 6; wherein, a processing module is arranged in the substrate 1 and is used for generating a plurality of driving signals based on the control signals; the substrate 1 has a first surface and a second surface opposite to each other; the control signal input pin pad 2, the control signal output pin pad 3, the power supply voltage pin pad 4, the ground pin pad 5 and the plurality of driving signal output pin pads 6 are all arranged on the first surface of the substrate 1 at intervals, the control signal input pin pad 2 and the control signal output pin pad 3 are arranged at intervals along the first direction, and the center of the control signal input pin pad 2 and the center of the control signal output pin pad 3 are positioned on the same straight line; the control signal input pin pad 2, the power supply voltage pin pad 4, the ground pin pad 5 and the plurality of driving signal output pin pads 6 are electrically connected with the processing module; the control signal output pin pad 3 is electrically connected to the control signal input pin pad 2.
In the dimmer of the above embodiment, the processing module is disposed in the substrate 1, and the processing module is configured to generate a plurality of driving signals based on the control signals, where the control signal input pin pad 2, the power supply voltage pin pad 4, the ground pin pad 5, and the plurality of driving signal output pin pads 6 are all electrically connected to the processing module; the control signal output pin bonding pad 3 is electrically connected with the control signal input pin bonding pad 2, and the processing module is arranged in the substrate 1, so that the winding of connecting wires between the processing module and each bonding pad can be avoided, and the structure of the dimmer is more regular and concise; the substrate 1 is provided with a first surface and a second surface which are opposite, the control signal input pin pad 2, the control signal output pin pad 3, the power supply voltage pin pad 4, the grounding pin pad 5 and the plurality of driving signal output pin pads 6 are all arranged on the first surface of the substrate 1 at intervals, the control signal input pin pad 2 and the control signal output pin pad 3 are arranged at intervals along a first direction, and all the pads are orderly arranged, so that wiring is convenient for the subsequent process; the center of the control signal input pin pad 2 and the center of the control signal output pin pad 3 are positioned on the same straight line, so that the problem of line staggering during the subsequent wiring process can be reduced.
In one embodiment, as shown in fig. 2, the plurality of driving signal output pin pads 6 includes: the first driving signal output pin pad 61, the second driving signal output pin pad 62, the third driving signal output pin pad 63, and the fourth driving signal output pin pad 64.
In one embodiment, the first driving signal output pin pad 61, the control signal output pin pad 3, the power supply voltage pin pad 4 and the second driving signal output pin pad 62 are sequentially arranged at intervals along the second direction, and the center of the first driving signal output pin pad 61, the center of the control signal output pin pad 3, the center of the power supply voltage pin pad 4 and the center of the second driving signal output pin pad 62 are positioned on the same straight line; the third driving signal output pin pad 63, the control signal input pin pad 2, the ground pin pad 5 and the fourth driving signal output pin pad 64 are sequentially arranged at intervals along the second direction, and the center of the third driving signal output pin pad 63, the center of the control signal input pin pad 2, the center of the ground pin pad 5 and the center of the fourth driving signal output pin pad 64 are positioned on the same straight line; the first driving signal output pin pads 61 and the third driving signal output pin pads 63 are correspondingly arranged at intervals along the first direction; the power supply voltage pin pads 4 and the ground pin pads 5 are correspondingly arranged at intervals along the first direction, and the second driving signal output pin pads 62 and the fourth driving signal output pin pads 64 are correspondingly arranged at intervals along the first direction; the second direction is orthogonal to the first direction.
The present application also provides a display device, as shown in fig. 3, including: the dimmer 10 and the light emitting chip 20 according to any one of the above embodiments; the light emitting chip 20 includes a first electrode 201 and a second electrode 202, and the first electrode 201 and the second electrode 202 have a gap; wherein the first electrode 201 is electrically connected with the driving signal output pin pad 6; the control signal input pin pad 2 is electrically connected with the control signal source 30; the power supply voltage pin pad 4 is connected with a first power supply 40; the grounding pin pad 5 is grounded; the second electrode 202 is connected to the second power supply 50.
The display device of the above embodiment includes a dimmer 10, wherein a processing module is disposed in a substrate 1 of the dimmer 10, and the processing module is configured to generate a plurality of driving signals based on control signals, where a control signal input pin pad 2, a power supply voltage pin pad 4, a ground pin pad 5, and a plurality of driving signal output pin pads 6 are all electrically connected to the processing module; the control signal output pin bonding pad 3 is electrically connected with the control signal input pin bonding pad 2, and the processing module is arranged in the substrate 1, so that the winding of connecting wires between the processing module and each bonding pad can be avoided, and the structure of the dimmer 10 is more regular and concise; the substrate 1 is provided with a first surface and a second surface which are opposite, the control signal input pin pad 2, the control signal output pin pad 3, the power supply voltage pin pad 4, the grounding pin pad 5 and the plurality of driving signal output pin pads 6 are all arranged on the first surface of the substrate 1 at intervals, the control signal input pin pad 2 and the control signal output pin pad 3 are arranged at intervals along a first direction, and all the pads are orderly arranged, so that wiring is convenient for the subsequent process; the center of the control signal input pin pad 2 and the center of the control signal output pin pad 3 are positioned on the same straight line, so that the problem of line staggering during the subsequent wiring process can be reduced; the dimmer 10 and the light emitting chip 20 are connected, the structure of the obtained display device is regular and simple, the display device can be helped to better arrange various wiring inside, and the probability of short circuit occurrence caused by line staggering is reduced.
In one embodiment, the first electrode 201 may be a p-electrode and the second electrode 202 may be an n-electrode; in other embodiments, the first electrode 201 may be an n electrode, and the second electrode 202 may be a p electrode.
In one embodiment, as shown in fig. 4, the number of dimmers 10 may be multiple; the dimmers 10 are arranged at intervals along the first direction, and the centers of all the control signal input pin pads 2 and the centers of all the control signal output pin pads 3 are positioned on the same straight line; the number of the light emitting chips 20 may be plural, and the plural light emitting chips 20 are respectively located at two opposite sides of the dimmer 10 along the second direction and are arranged at intervals from the dimmer 10; the second direction is orthogonal to the first direction; the plurality of chips on the same side of the dimmer 10 are arranged at intervals along the first direction.
In one embodiment, as shown in fig. 5, the plurality of driving signal output pin pads 6 includes: a first driving signal output pin pad 61, a second driving signal output pin pad 62, a third driving signal output pin pad 63, and a fourth driving signal output pin pad 64; the first driving signal output pin pad 61, the second driving signal output pin pad 62, the third driving signal output pin pad 63, and the fourth driving signal output pin pad 64 in each dimmer 10 are connected to the first electrodes 201 of the different light emitting chips 20 in one-to-one correspondence via different first connection lines 11, respectively; the ground pin pads 5 in each dimmer 10 are grounded via the second connecting wire 22 and the plurality of third connecting wires 33, wherein the second connecting wire 22 is grounded; one end of each third connecting wire 33 is connected with the second connecting wire 22, and the other end is connected with the grounding pin bonding pads 5 in each dimmer 10 in a one-to-one correspondence manner; the power supply voltage pin pads 4 in each dimmer 10 are connected to the first power supply 40 via a fourth connecting line 44 and a plurality of fifth connecting lines 55, wherein the fourth connecting line 44 is connected to the first power supply 40; one end of each fifth connecting wire 55 is connected with the fourth connecting wire 44, and the other end is connected with the power supply voltage pin pads 4 in each dimmer 10 in a one-to-one correspondence manner; the control signal input pin pad 2 of the dimmer 10 is connected to the control signal output pin pad 3 of the adjacent other dimmer 10 via a sixth connection line 66.
In one embodiment, still referring to fig. 5, the first connection line 11 is located between the dimmer 10 and the light emitting chip 20; the second connecting wire 22 is located between the dimmer 10 and the light emitting chip 20, and the third connecting wire 33 is located outside the dimmer 10; the fourth connecting line 44 is located between the dimmer 10 and the light emitting chip 20, and the fifth connecting line 55 is located outside the dimmer 10; the sixth connection line is located between adjacent dimmers 10.
In one embodiment, still referring to fig. 5, the first driving signal output pin pad 61, the control signal output pin pad 3, the power supply voltage pin pad 4 and the second driving signal output pin pad 62 are sequentially arranged at intervals along the second direction, and the center of the first driving signal output pin pad 61, the center of the control signal output pin pad 3, the center of the power supply voltage pin pad 4 and the center of the second driving signal output pin pad 62 are located on the same straight line; the third driving signal output pin pad 63, the control signal input pin pad 2, the ground pin pad 5 and the fourth driving signal output pin pad 64 are sequentially arranged at intervals along the second direction, and the center of the third driving signal output pin pad 63, the center of the control signal input pin pad 2, the center of the ground pin pad 5 and the center of the fourth driving signal output pin pad 64 are positioned on the same straight line; the first driving signal output pin pads 61 and the third driving signal output pin pads 63 are correspondingly arranged at intervals along the first direction; the power supply voltage pin pads 4 and the ground pin pads 5 are correspondingly arranged at intervals along the first direction, and the second driving signal output pin pads 62 and the fourth driving signal output pin pads 64 are correspondingly arranged at intervals along the first direction; the fourth connection line 44 is located at a side of the dimmer 10 remote from the second connection line 22; the second connection line 22 spans each light emitting chip 20 located on the same side of the dimmer 10 via a gap between the first electrode 201 and the second electrode 202 in the light emitting chips 20 located on the same side of the dimmer 10; the fourth connection line 44 spans each light emitting chip 20 located on the same side of the dimmer 10 via a gap between the first electrode 201 and the second electrode 202 in the light emitting chips 20 located on the same side of the dimmer 10; the fifth connection line 55 is connected to the power supply voltage pin pad 4 via the first surface of the dimmer 10.
Specifically, the second connection line 22 spans across each of the light emitting chips 20 located on the same side of the dimmer 10 via a gap between the first electrode 201 and the second electrode 202 in the light emitting chips 20 located on the same side of the dimmer 10, and the fourth connection line 44 spans across each of the light emitting chips 20 located on the same side of the dimmer 10 via a gap between the first electrode 201 and the second electrode 202 in the light emitting chips 20 located on the same side of the dimmer 10, so that the problem of line staggering of the connection lines can be completely avoided, a complex process is not required, and multiple layers of line layer overlapping is not required to be provided, so that good connection between the connection lines can be achieved.
In one embodiment, the width of the gap between the first electrode 201 and the second electrode 202 of the same light emitting chip 20 is greater than the width of the second connection line 22 and the width of the fourth connection line 44; the width of the gap between the first electrode 201 and the second electrode 202 of the same light emitting chip 20 may be 100 μm to 200 μm, the width of the second connection line 22 may be 10 μm to 100 μm, and the width of the fourth connection line 44 may be 10 μm to 100 μm.
Specifically, the gap width between the first electrode 201 and the second electrode 202 may be 100 μm, 120 μm, 150 μm, 180 μm or 200 μm, or any other gap width between 100 μm and 200 μm, which is not limited by the illustrated embodiment. The width of the second connection line 22 may be 10 μm, 30 μm, 50 μm, 80 μm or 100 μm, or any other width between 10 μm and 100 μm, which is not limited by the illustrated embodiment. The width of the fourth connecting line 44 may be 10 μm, 30 μm, 50 μm, 80 μm or 100 μm, or any other width between 10 μm and 100 μm, and is not limited to the illustrated embodiment.
In one embodiment, the first connection line 11, the second connection line 22, the third connection line 33, the fourth connection line 44, the fifth connection line 55, and the sixth connection line may be formed by etching the same metal layer.
The technical features of the above embodiments may be arbitrarily combined, and for brevity of description, all possible combinations of the technical features of the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope described in the present specification.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. A dimmer, comprising: the circuit comprises a substrate, a control signal input pin pad, a control signal output pin pad, a power supply voltage pin pad, a grounding pin pad and a plurality of driving signal output pin pads; wherein,
a processing module is arranged in the substrate and is used for generating a plurality of driving signals based on the control signals; the substrate is provided with a first surface and a second surface which are opposite;
the control signal input pin pad, the control signal output pin pad, the power supply voltage pin pad, the grounding pin pad and the driving signal output pin pads are all arranged on the first surface of the substrate at intervals, the control signal input pin pad and the control signal output pin pad are arranged at intervals along a first direction, and the center of the control signal input pin pad and the center of the control signal output pin pad are positioned on the same straight line; the control signal input pin pad, the power supply voltage pin pad, the grounding pin pad and the driving signal output pin pads are electrically connected with the processing module; the control signal output pin pad is electrically connected with the control signal input pin pad.
2. The dimmer of claim 1, wherein the plurality of drive signal output pin pads comprises: the first driving signal output pin pad, the second driving signal output pin pad, the third driving signal output pin pad and the fourth driving signal output pin pad.
3. The dimmer according to claim 2, wherein the first driving signal output pin pad, the control signal output pin pad, the power supply voltage pin pad, and the second driving signal output pin pad are sequentially arranged at intervals along a second direction, and the centers of the first driving signal output pin pad, the control signal output pin pad, the power supply voltage pin pad, and the second driving signal output pin pad are positioned on the same straight line; the third driving signal output pin pad, the control signal input pin pad, the grounding pin pad and the fourth driving signal output pin pad are sequentially arranged at intervals along the second direction, and the center of the third driving signal output pin pad, the center of the control signal input pin pad, the center of the grounding pin pad and the center of the fourth driving signal output pin pad are positioned on the same straight line; the first driving signal output pin bonding pads and the third driving signal output pin bonding pads are correspondingly arranged at intervals along the first direction; the power supply voltage pin bonding pads and the grounding pin bonding pads are correspondingly arranged at intervals along a first direction, and the second driving signal output pin bonding pads and the fourth driving signal output pin bonding pads are correspondingly arranged at intervals along the first direction; the second direction is orthogonal to the first direction.
4. A display device, comprising:
a dimmer according to any one of claims 1 to 3;
the light-emitting chip comprises a first electrode and a second electrode, and a gap is reserved between the first electrode and the second electrode; wherein,
the first electrode is electrically connected with the driving signal output pin bonding pad; the control signal input pin bonding pad is electrically connected with a control signal source; the power supply voltage pin bonding pad is connected with a first power supply; the grounding pin pad is grounded; the second electrode is connected with a second power supply.
5. The display device according to claim 4, wherein the number of dimmers is a plurality; the dimmers are arranged at intervals along the first direction, and the centers of all the control signal input pin pads and the centers of all the control signal output pin pads are positioned on the same straight line;
the light emitting chips are respectively positioned at two opposite sides of the dimmer along the second direction and are distributed at intervals with the dimmer; the second direction is orthogonal to the first direction; the chips on the same side of the dimmer are arranged at intervals along the first direction.
6. The display device according to claim 5, wherein the plurality of driving signal output pin pads includes: the first driving signal output pin pad, the second driving signal output pin pad, the third driving signal output pin pad and the fourth driving signal output pin pad;
the first driving signal output pin bonding pad, the second driving signal output pin bonding pad, the third driving signal output pin bonding pad and the fourth driving signal output pin bonding pad in each dimmer are respectively connected with the first electrodes of different light emitting chips in a one-to-one correspondence manner through different first connecting wires;
the grounding pin bonding pads in each dimmer are grounded through a second connecting wire and a plurality of third connecting wires, wherein the second connecting wires are grounded; one end of each third connecting wire is connected with the second connecting wire, and the other end of each third connecting wire is connected with the grounding pin bonding pads in each dimmer in a one-to-one correspondence manner;
the power supply voltage pin bonding pads in each dimmer are connected with the first power supply through a fourth connecting wire and a plurality of fifth connecting wires, wherein the fourth connecting wire is connected with the first power supply; one end of each fifth connecting wire is connected with the fourth connecting wire, and the other end of each fifth connecting wire is connected with the power supply voltage pin bonding pads in each dimmer in a one-to-one correspondence manner; the control signal input pin pad of the dimmer and the control signal output pin pad of the adjacent other dimmer are connected via a sixth connection line.
7. The display device according to claim 6, wherein the first connection line is located between the dimmer and the light emitting chip; the second connecting wire is positioned between the dimmer and the light-emitting chip, and the third connecting wire is positioned outside the dimmer; the fourth connecting wire is positioned between the dimmer and the light-emitting chip, and the fifth connecting wire is positioned outside the dimmer; the sixth connection line is located between adjacent dimmers.
8. The display device according to claim 6, wherein the first driving signal output pin pad, the control signal output pin pad, the power supply voltage pin pad, and the second driving signal output pin pad are sequentially arranged at intervals along a second direction, and a center of the first driving signal output pin pad, a center of the control signal output pin pad, a center of the power supply voltage pin pad, and a center of the second driving signal output pin pad are positioned on the same straight line; the third driving signal output pin pad, the control signal input pin pad, the grounding pin pad and the fourth driving signal output pin pad are sequentially arranged at intervals along the second direction, and the center of the third driving signal output pin pad, the center of the control signal input pin pad, the center of the grounding pin pad and the center of the fourth driving signal output pin pad are positioned on the same straight line; the first driving signal output pin bonding pads and the third driving signal output pin bonding pads are correspondingly arranged at intervals along the first direction; the power supply voltage pin bonding pads and the grounding pin bonding pads are correspondingly arranged at intervals along a first direction, and the second driving signal output pin bonding pads and the fourth driving signal output pin bonding pads are correspondingly arranged at intervals along the first direction;
the fourth connecting wire is positioned at one side of the dimmer away from the second connecting wire;
the second connecting wire spans each light emitting chip on the same side of the dimmer through a gap between the first electrode and the second electrode in the light emitting chips on the same side of the dimmer; the fourth connecting wire spans each light emitting chip on the same side of the dimmer via a gap between the first electrode and the second electrode in the light emitting chips on the same side of the dimmer; the fifth connection line is connected with the power supply voltage pin pad via the first surface of the dimmer.
9. The display device according to claim 8, wherein a width of a gap between the first electrode and the second electrode of the same light emitting chip is larger than a width of the second connection line and a width of the fourth connection line; the width of the gap between the first electrode and the second electrode of the same light emitting chip is 100-200 μm, the width of the second connecting wire is 10-100 μm, and the width of the fourth connecting wire is 10-100 μm.
10. The display device according to any one of claims 6 to 9, wherein the first connection line, the second connection line, the third connection line, the fourth connection line, the fifth connection line, and the sixth connection line are formed by etching a same metal layer.
CN202210651718.1A 2022-06-10 2022-06-10 Dimmer and display device Pending CN117253868A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210651718.1A CN117253868A (en) 2022-06-10 2022-06-10 Dimmer and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210651718.1A CN117253868A (en) 2022-06-10 2022-06-10 Dimmer and display device

Publications (1)

Publication Number Publication Date
CN117253868A true CN117253868A (en) 2023-12-19

Family

ID=89125185

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210651718.1A Pending CN117253868A (en) 2022-06-10 2022-06-10 Dimmer and display device

Country Status (1)

Country Link
CN (1) CN117253868A (en)

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