TWM588344U - Display device - Google Patents

Abstract

A display device includes a display panel having pixels, signal lines electrically connected to the pixels, and bonding pads electrically connected to the signal lines and arranged in a first row and a second row, a first circuit-connecting unit including first inner contacts at least partially connected to the bonding pads in the first row and first outer contacts, a second circuit-connecting unit including second inner contacts at least partially connected to the bonding pads in the second row and second outer contacts, and a circuit board electrically connected to the first outer contacts and the second outer contacts, wherein the first circuit-connecting unit and the second circuit-connecting unit do not overlap with each other in a display direction of the display panel.

Description

Display device

The present invention relates to a display device, and particularly to a display device having a pair of circuit connection unit groups arranged in pairs.

The display panel generally has a plurality of pixels for displaying an image, and a plurality of bonding pads as input / output points of signals. A bonding pad of a display panel is usually connected to an external circuit board through a flexible printed circuit board. However, as the demand for high resolution increases, the number of pixels of the display panel continues to increase, resulting in a corresponding increase in the number of signal lines of the display panel.

In response to the increase in the number of signal lines, the bonding pad configuration of the display panel has also evolved from a single-row configuration to a double-row configuration, and the flexible printed circuit board has also developed from a single-layer single-row design with a single-layer conductive layer and single-row contact to a double Double-layer double-row design with double-row contacts in the conductive layer. However, the flexible printed circuit board with a double-layer and double-row design is more difficult to manufacture, making its manufacturing cost even tens of times or even hundreds of times higher than that of a single-layer single-row design.

One of the objects of the present invention is to provide a display device, which is applied to a high pixel density display device with dual-row bonding pads through an innovative circuit connection unit group design, which effectively reduces production costs and improves process feasibility.

In one embodiment, the present invention provides a display device including a display panel, a first circuit connection unit, a second circuit connection unit, and a circuit board. The display panel includes a plurality of pixels, a plurality of signal lines, a plurality of bonding pads, and a plurality of signals. The wires are electrically connected to the plurality of pixels, and the plurality of bonding pads are arranged in the first row and the second row and are electrically connected to the plurality of signal lines; the first circuit connection unit includes a plurality of first inner contacts and a plurality of first outer sides disposed on opposite sides. At least a part of the plurality of first inner contacts is electrically connected to the plurality of bonding pads in the first row; the second circuit connection unit includes a plurality of second inner contacts and a plurality of second outer contacts disposed on opposite sides, At least a part of the two inner contacts is electrically connected to the plurality of bonding pads in the second row; the circuit board is electrically connected to the plurality of first outer contacts and the plurality of second outer contacts, and the first circuit connection unit and the second circuit connection unit are on the display panel. Does not overlap in the display direction.

In one embodiment, the plurality of signal lines include a plurality of first signal lines and a plurality of second signal lines, and in each pixel, the first signal line and the second signal line are electrically connected to different electrodes of the pixel; the plurality of bonding pads include a plurality of The first bonding pad and the plurality of second bonding pads, the plurality of first bonding pads are electrically connected to the plurality of first signal lines, and the plurality of second bonding pads are electrically connected to the plurality of second signal lines.

In an embodiment, the plurality of first inner contacts includes a plurality of first contacts of the first group and the plurality of first contacts of the second group; the plurality of second inside contacts includes the plurality of second contacts and the first group of the first group. Two sets of plural second contacts; the first circuit connection unit and the second circuit connection unit constitute the first circuit connection unit group, and in the first circuit connection unit group, the plural first contacts of the first group are electrically connected to the plural At least a part of the first bonding pad, the plurality of first contacts of the second group and the plurality of second contacts of the first group are electrically connected to the plurality of second bonding pads, and the plurality of second contacts of the second group are dummy contacts.

In an embodiment, the display device further includes a plurality of first circuit connection units and a plurality of second circuit connection units to form a plurality of circuit connection unit groups. In the second circuit connection unit group of the plurality of circuit connection unit groups, The plural first contacts of the first group are dummy contacts, the plural first contacts of the second group and the plural second contacts of the first group are electrically connected to the plural second bonding pads, and the plural second contacts of the second group are electrically connected. Click to electrically connect the other part of the plurality of first bonding pads.

In an embodiment, in the third circuit connection unit group of the plurality of circuit connection unit groups, the plurality of first contacts of the first group and the plurality of second contacts of the second group are dummy contacts, and the second group of The plurality of first contacts and the plurality of second contacts of the first group are electrically connected to the plurality of second bonding pads; the third circuit connection unit group is disposed between the first circuit connection unit group and the second circuit connection unit group.

In an embodiment, the plurality of first bonding pads are configured as a plurality of first bonding pads in a first group and a plurality of first bonding pads in a second group, and the plurality of second bonding pads are disposed on the plurality of first bonding pads and the first group. Between two sets of plural first bonding pads, and in the first circuit connection unit group, the plural first contacts of the first group are electrically connected to the plural first bonding pads of the first group; in the second circuit connection unit group The plurality of second contacts of the second group are electrically connected to the plurality of first bonding pads of the second group.

In one embodiment, the plurality of bonding pads electrically connected to the first circuit connection unit group constitutes a plurality of first bonding pads, and the plurality of bonding pads electrically connected to the second group of circuit connection units constitute a second plurality of bonding pads; In the first column, the distance between the plurality of bonding pads of the first group and the plurality of adjacent bonding pads of the second group is greater than the distance between the plurality of bonding pads in the first group or the plurality of adjacent bonding pads in the second group. The distance between the bonding pads.

In an embodiment, in the second column, the distance between the plurality of bonding pads of the first group and the bonding pads adjacent to the plurality of bonding pads of the second group is greater than that within the plurality of bonding pads of the first group or the plurality of the second group. The distance between adjacent bonding pads within the bonding pad.

In one embodiment, the plurality of bonding pads further includes a plurality of dummy pads disposed in the first and second rows, and the dummy pads are used to connect the dummy contacts.

In an embodiment, the plurality of bonding pads in the first row and the plurality of bonding pads in the second row are at least partially corresponding to each other.

In one embodiment, the plurality of bonding pads in the first row and the plurality of bonding pads in the second row are at least partially staggered.

In an embodiment, the display panel includes a display area and a wiring area, a plurality of pixels are disposed in the display area, a plurality of bonding pads are disposed in the wiring area, and the plurality of bonding pads in the first column are closer to the display area than the plurality of bonding pads in the second column.

Compared with the conventional technology, the novel display device electrically connects the dual-row bonding pads of the display panel and the circuit board through a pair of single-layer single-row circuit connection unit groups, which effectively reduces production costs and improves manufacturing feasibility.

In the drawings, the thicknesses of layers, films, panels, regions, etc. are exaggerated for clarity. Throughout the description, the same reference numerals denote the same elements. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to a physical and / or electrical connection. Furthermore, "electrically connected" or "coupled" means that there are other elements between the two elements.

It should be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, and / or sections, and / Or in part should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a "first element," "component," "region," "layer," or "portion" discussed below may be referred to as a second element, component, region, layer, or section without departing from the teachings herein.

The terminology used herein is for the purpose of describing particular embodiments only and is not limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms, including "at least one", unless the content clearly indicates otherwise. "Or" means "and / or". As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. It should also be understood that when used in this specification, the term "including" and / or "including" designates the stated features, regions, wholes, steps, operations, presence of elements and / or components, but does not exclude one or more The presence or addition of other features, areas as a whole, steps, operations, elements, components, and / or combinations thereof.

In addition, relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe the relationship of one element to another element, as shown. It should be understood that relative terms are intended to include different orientations of the device in addition to the orientation shown in the figures. For example, if the device in one of the figures is turned over, elements described as being on the "lower" side of other elements would then be oriented on "upper" sides of the other elements. Thus, the exemplary term "under" may include orientations of "under" and "upper" depending on the particular orientation of the drawings. Similarly, if the device in one of the figures is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "below" or "below" may include orientations above and below.

As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within an acceptable deviation range of a particular value determined by one of ordinary skill in the art, taking into account the measurements in question and A specific number of measurement-related errors (ie, limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the stated value, or within ± 30%, ± 20%, ± 10%, ± 5%. Furthermore, "about", "approximately" or "substantially" as used herein may select a more acceptable range of deviations or standard deviations based on optical properties, etching properties, or other properties, and all properties can be applied without one standard deviation .

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted to have meanings consistent with their meanings in the context of the related art and this novel, and will not be interpreted as idealized or excessive Formal meaning unless explicitly defined as such in this article.

Exemplary embodiments are described herein with reference to cross-sectional views that are schematic views of idealized embodiments. Accordingly, variations in the shapes of the illustrations as a result, for example, of manufacturing techniques and / or tolerances, are to be expected. Therefore, the embodiments described herein should not be construed as limited to the particular shape of the area as shown herein, but include shape deviations caused by, for example, manufacturing. For example, a region shown or described as flat may generally have rough and / or non-linear characteristics. Furthermore, the acute angles shown may be round. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region and are not intended to limit the scope of the claims.

1 to 3, FIG. 1 is a schematic plan view of a display device according to an embodiment of the present invention; FIG. 2 is a partial schematic view of a display panel according to an embodiment of the present invention; and FIG. 3 is a circuit connection unit according to an embodiment of the present invention. Group of schematics. As shown in FIGS. 1 to 3, the display device 10 includes a display panel 500, a first circuit connection unit 100, a second circuit connection unit 200, and a circuit board 400. The display panel 500 includes a plurality of pixels (not shown), a plurality of signal lines 530, and a plurality of bonding pads 540. The plurality of signal lines 530 are electrically connected to the plurality of pixels, and the plurality of bonding pads 540 are arranged in a first column 540A and a second column 540B. Electrically connected to a plurality of signal lines 530. The first circuit connection unit 100 includes a plurality of first outer contacts 110 and a plurality of first inner contacts 120 provided on opposite sides. The plurality of first outer contacts 110 are electrically connected to the circuit board 400, and at least a part of the plurality of first inner contacts 120 are electrically connected to the plurality of bonding pads 540 in the first row 540A. The second circuit connection unit 200 includes a plurality of second outer contacts 210 and a plurality of second inner contacts 220 provided on opposite sides. The plurality of second outer contacts 210 are electrically connected to the circuit board 400, and at least a part of the plurality of second inner contacts 220 are electrically connected to the plurality of bonding pads in the second row 540B.

As shown in FIG. 1, the first circuit connection unit 100 and the second circuit connection unit 200 are disposed in pairs between the display panel 500 and the circuit board 400, and the first circuit connection unit 100 and the second circuit connection unit 200 are on the display panel. The 500 display directions do not overlap to form a circuit connection unit group. It should be noted here that according to the pixel density of the display panel 500, the display device may include a plurality of circuit connection unit groups (for example, a first circuit connection unit group 301, a second circuit connection unit group 302, a third circuit connection unit group 303, etc.) Moreover, each circuit connection unit group preferably includes a first circuit connection unit 100 and a second circuit connection unit 200, but is not limited thereto. According to the actual application, the circuit connection unit group may include a plurality of first circuit connection units 100 and a plurality of second circuit connection units 200 staggered, and the number of the first circuit connection units 100 and the second circuit connection units 200 may be the same or different. . In this embodiment, as shown in FIG. 1, the third circuit connection unit group 303 is preferably disposed between the first circuit connection unit group 301 and the second circuit connection unit group 302, and the display device 10 may include a plurality of third circuits. The connection unit group 303 is disposed between the first circuit connection unit group 301 and the second circuit connection unit group 302. Hereinafter, only one third circuit connection unit group 303 is provided between the first circuit connection unit group 301 and the second circuit connection unit group 302 for illustration.

As shown in FIGS. 1 and 2, the display panel 500 includes a display area 510 and a wiring area 520. A plurality of pixels (not shown) are disposed in the display area 510 for displaying images. The plurality of bonding pads 540 are disposed in the wiring area 520 to serve as input and output points of signals for controlling the operation of the display panel 500. The plurality of bonding pads 540 are preferably arranged in a double row, wherein the bonding pads in the first row 540A are closer to the display area 510 than the bonding pads in the second row 540B. In other words, the bonding pads in the first row 540A and the bonding pads in the second row 540B are preferably distributed along one side of the display panel 500, and the bonding pads in the second row 540B are closer to the side than the bonding pads in the first row 540A ( (Ie close to the outside of the wiring area 520). In addition, the plurality of bonding pads 540 are preferably arranged in groups to correspond to the plurality of circuit connection unit groups, respectively. For example, taking three sets of circuit connection unit groups as an example, the plurality of bonding pads electrically connected to the first circuit connection unit group 301 constitute the first plurality of bonding pads 5401, and the plurality of electrical connection pads electrically connected to the second circuit connection unit group 302 The bonding pads constitute a plurality of bonding pads 5402 of the second group, and the plurality of bonding pads electrically connected to the third circuit connection unit group 303 constitute the plurality of bonding pads 5403 of the third group. In the bonding pads in the first row 540A and the second row 540B, the distance between adjacent bonding pads in each group of bonding pads is preferably greater than the distance between adjacent bonding pads in each group of bonding pads. For example, in the first column 540A, the distance D131 between the plurality of bonding pads 5401 of the first group and the plurality of adjacent bonding pads 5403 of the third group D131 is greater than within or within the first plurality of bonding pads 5401. The distance D11 or D31 between the adjacent bonding pads in the three sets of the plurality of bonding pads 5403; or, the distance D231 between the bonding pads of the second set of the plurality of bonding pads 5402 and the adjacent bonding pads in the third set of the plurality of bonding pads 5403 It is larger than the distance D21 or D31 between the adjacent bonding pads in the plurality of bonding pads 5402 of the second group or the plurality of bonding pads 5403 of the third group. In the second column 540B, the distance D132 between the plurality of bonding pads 5401 of the first group and the plurality of adjacent bonding pads 5403 of the third group D132 is greater than the number of the plurality of bonding pads 5401 in the first group or the plurality of the third group. The distance D12 or D32 between the bonding pads 5403 adjacent to each other in the bonding pads; or the distance D232 between the bonding pads 5402 of the second group and the bonding pads 5403 adjacent to the third group is greater than the second group The distance D22 or D32 between adjacent bonding pads in the plurality of bonding pads 5402 or in the third plurality of bonding pads 5403. In one embodiment, the plurality of bonding pads 540 include a plurality of first bonding pads 542 and a plurality of second bonding pads 544, and the plurality of bonding pads 540 may optionally include a plurality of dummy pads 546, and the plurality of dummy pads 546 are disposed in the first row 540A. And in the second column 540B, it is used to connect the dummy contact (detailed later).

The plurality of signal lines 530 preferably include a plurality of first signal lines 532 and a plurality of second signal lines 534. In each pixel, the first signal line 532 and the second signal line 534 are preferably electrically connected to different electrodes of the pixels. The plurality of first bonding pads 542 are electrically connected to the plurality of first signal lines 532, and the plurality of second bonding pads 544 are electrically connected to the plurality of second signal lines 534. For example, the plurality of bonding pads 540 are not only arranged in two rows, but the bonding pads in each row preferably include a plurality of first bonding pads 542 and a plurality of second bonding pads 544, and are respectively connected to the corresponding first signal lines 532 and Second signal line 534. In an embodiment, the first signal line 532 and the second signal line 534 are preferably connected to different electrodes of the pixel, as control lines (or scan lines) for providing signal control pixels on or off and determining pixels, respectively. Voltage data line. For example, in one embodiment, the display panel 500 preferably has a gate driving circuit (GOA), and a plurality of gate control signal lines of the gate driving circuit are used as the first signal line 532. Each of the second signal lines 534 is preferably electrically connected to a source electrode corresponding to a pixel to serve as a data line of the display panel 500. Thereby, the display device 10 can electrically connect the gate control signal line (ie, the first signal line 532) of the gate driving circuit through the first bonding pad 532, thereby controlling the turning on or off of each pixel, and The two bonding pads 534 are electrically connected to the data line (ie, the second signal line 534), and control the pixel brightness according to the pixel voltage.

In an embodiment, the plurality of first bonding pads 542 are configured as a plurality of first bonding pads 542L of the first group and a plurality of first bonding pads 542R of the second group, and the plurality of second bonding pads 544 are disposed on the first of the first group. Between the bonding pad 542L and the first bonding pad 542R of the second group. For example, the plurality of gate control signal lines are preferably disposed on opposite sides of the display panel 500 (such as the left and right sides), so that the left first plural signal line is used as the first plurality of first plural signal lines 532L. The plurality of first bonding pads 542L of the first group are electrically connected, and the plurality of first signal lines on the right side are used as the plurality of first signal lines 532R of the second group to electrically connect the plurality of first bonding pads 542R of the second group. In an embodiment, the number of the plurality of first signal lines 532L in the first group is preferably the same as the number of the plurality of first signal lines 532R in the second group, but is not limited thereto. In other embodiments, the number of the first signal lines in each group may be different according to the actual application. Furthermore, in an embodiment, the plurality of first bonding pads 542L of the first group are preferably disposed in the first row 540A, and the plurality of first bonding pads 542R of the second group are preferably disposed in the second row 540B to be connected separately The first circuit connection unit 100 and the second circuit connection unit 200 are not limited thereto. According to the actual application, the plurality of first bonding pads 542L of the first group may be disposed in the second column 540B, and the plurality of first bonding pads 542R of the second group may be disposed in the first column 540A.

As shown in FIGS. 1 and 3, the circuit board 400 can be used to process the driving-related settings of the display device 500, such as providing and transmitting image display signals for coupling to the display through the first circuit connection unit 100 and the second circuit connection unit 200. Panel 500. In this embodiment, the first circuit connection unit 100 and the second circuit connection unit 200 are preferably flexible printed circuit boards. For example, data (source) driving chips 130 and 230 and other circuit element chip-on-films are provided. Film), but not limited to this. The first circuit connection unit 100 and the second circuit connection unit 200 are preferably designed as a single conductive layer with a single row of contacts to effectively reduce manufacturing costs. The first circuit connection unit 100 and the second circuit connection unit 200 preferably have different shapes, so that the first circuit connection unit 100 and the second circuit connection unit 200 do not overlap in the display direction of the display panel 500, that is, on the surface of the display area 510. Do not overlap in the direction of the normal. For example, as shown in FIG. 3, the length L1 of the first circuit connection unit 100 in the direction of connecting the opposite sides of the first outer contact 110 and the first inner contact 120 is preferably larger than the second circuit connection unit. A length L2 of 200 in a direction in which the second outer contact 210 and the second inner contact 220 are connected on the opposite side. In addition, the first circuit connection unit 100 preferably has a recessed portion 140 for providing the second circuit connection unit 200. For example, the first circuit connection unit 100 may have a substantially L shape, the first outer contact 110 is disposed on the upper narrow side of the L shape, and the first inner contact 120 is disposed on the lower wide side of the L shape. A recessed space is defined between the outer contact point 110 and the first inner contact point 120 as the recessed portion 140. In this embodiment, the second circuit connection unit 200 may be a trapezoid with an upper narrow and a lower width, the second outer contact 210 is disposed on the upper narrow side of the trapezoid, and the second inner contact 220 is disposed on the lower wide side of the trapezoid. Thereby, the second circuit connection unit 200 may be partially disposed in the recessed portion 140 so that the second inner contact point 220 partially corresponds to the first inner contact point 120. In other words, the first circuit connection unit 100 and the second circuit connection unit 200 are disposed along the connection direction of the opposite sides of the first outer contact 110 and the first inner contact 120 (that is, the connection direction of the display panel 500 and the circuit board 400). Therefore, at least a part of the plurality of first inner contacts 120 is electrically connected to the plurality of bonding pads in the first row 540A, and at least a part of the plurality of second inner contacts 220 is electrically connected to the plurality of bonding pads in the second row 540B.

Specifically, the plurality of first inner contacts 120 of the first circuit connection unit 100 preferably include a plurality of first contacts 122 of the first group and a plurality of first contacts 124 of the second group. The plurality of second inner contacts 220 of the second circuit connection unit 200 include a plurality of second contacts 222 of the first group and a plurality of second contacts 224 of the second group. In the connection direction of the display panel 500 and the circuit board 400, the plurality of first contacts 124 of the second group preferably correspond at least in part to the plurality of second contacts 222 of the first group to correspond to the first column 540A and the second Arrangement of plural bonding pads in column 540B. FIG. 4 and FIG. 5 are configuration diagrams of bonding pads according to different embodiments of the present invention. In an embodiment, as shown in FIG. 4, a plurality of bonding pads 5401 of the first group are used as an example. When the plurality of bonding pads 540 are arranged in two rows, the plurality of bonding pads of the first row 540A and the plurality of the second row 540B are bonded. The pads are arranged at least partially in one-to-one correspondence. For example, the second bonding pads 544 in the first column 540A are preferably aligned one-to-one with the second bonding pads 544 in the second column 540B, so that the second signal line 534 can be bonded from the second bonding of the first column 540A. The gap between the pads 544 passes through, and the second bonding pads 544 of the corresponding second row 540B are bent and connected. In another embodiment, as shown in FIG. 5, the plurality of bonding pads in the first row 540A and the plurality of bonding pads in the second row 540B are at least partially staggered. For example, the second bonding pads 544 in the first column 540A are preferably staggered with the second bonding pads 544 in the second column 540B, so that the second bonding pads 544 in the second column 540B substantially correspond to the two of the first column 540A. Position of the gap between the two second bonding pads 544. In other words, two bonding pads in the first row 540A and one bonding pad in the second row 540B are respectively disposed on the two sides of the bottom edge and the top corner positions of the three shapes to form a staggered configuration. Thereby, the second signal line 534 can pass through the gap between the second bonding pads 544 in the first row 540A and connect the second bonding pads 544 in the corresponding second row 540B in a straight line, but not limited thereto. According to the actual application, the plurality of bonding pads may have other configurations.

In addition, in each circuit connection unit group, the first contact or the second contact of different groups may have different connection relationships with the display panel. Hereinafter, the connection relationship between each circuit connection unit group and the display panel will be described with reference to FIG. 2 and FIG. 3 by taking three circuit connection unit groups as an example.

As shown in FIG. 2 and FIG. 3, in the first circuit connection unit group 301, each contact is preferably connected to the plurality of bonding pads 5401 of the first group, and the plurality of first contacts 122 of the first group are preferably electrically connected. At least a part of the plurality of first bonding pads 542, the plurality of first contact points 124 of the second group and the plurality of second contact points 222 of the first group are preferably electrically connected to the plurality of second bonding pads 544, and the plurality of the second group are second The contact 224 is preferably a dummy contact. For example, the plurality of first contacts 122 of the first group are electrically connected to the plurality of first bonding pads 542L of the first group in the first column 540A, and further electrically connected to the plurality of first signal lines 532L of the first group on the left side ( Such as the gate control signal line on the left). The plurality of first contacts 124 of the second group are electrically connected to the plurality of second bonding pads 544 in the first column 540A, and the plurality of second contacts 222 of the first group are electrically connected to the second bonding pads 544 in the second column 540B, and further A plurality of second signal lines 534 (such as data lines) are electrically connected. The plurality of second contacts 224 in the second group are dummy contacts and can be connected to the dummy pads 546 in the second column 540B, but not limited thereto. The plurality of second contacts 224 of the second group may be selectively directly connected to the substrate of the display panel 500 at the bonding area 520, or the dummy pad 546 may be selectively electrically connected to other signal lines (such as the second signal line 534 or the test signal line). In this way, the plurality of second contacts 224 in the second group have an operational effect.

In the second circuit connection unit group 302, each contact is preferably connected to a plurality of bonding pads 5402 of the second group, wherein the plurality of first contacts 122 of the first group are dummy contacts, and the plurality of first contacts of the second group are dummy contacts. The point 124 and the plurality of second contacts 222 of the first group are electrically connected to the plurality of second bonding pads 544, and the plurality of second contacts 224 of the second group are electrically connected to another portion of the plurality of first bonding pads 542. For example, the plurality of first contacts 122 in the first group are dummy contacts and can be connected to the dummy pads 546 in the first column 540A, but not limited thereto. The plurality of first contacts 122 of the first group may be selectively directly connected to the substrate of the display panel 500 at the bonding area 520, or the dummy pad 546 may be selectively electrically connected to other signal lines (such as the second signal line 534 or the test signal line). In this way, the plurality of first contacts 122 of the first group have an operational effect. The plurality of first contacts 124 of the second group are electrically connected to the plurality of second bonding pads 544 in the first column 540A, and the plurality of second contacts 222 of the first group are electrically connected to the second bonding pads 544 in the second column 540B, and further A plurality of second signal lines 534 (such as data lines) are electrically connected. The plurality of second contacts 224 of the second group are electrically connected to the plurality of first bonding pads 542R of the second group of the second column 540B, and are further electrically connected to the plurality of first signal lines 532R of the second group on the right (such as the gate on the right) Control signal line).

In the third circuit connection unit group 303, each contact preferably corresponds to a plurality of bonding pads 5403 of the third group, wherein the first plurality of contacts 122 and the second plurality of contacts 224 of the second group are dummy. The contacts, and the plurality of first contacts 124 of the second group and the plurality of second contacts 222 of the first group are electrically connected to the plurality of second bonding pads 544. For example, the plural first contacts 122 of the first group and the plural second contacts 224 of the second group are dummy contacts and can be connected to the dummy pads 546 in the first column 540A and the second column 540B, respectively, but Not limited to this. The plurality of first contacts 122 of the first group and the plurality of second contacts 224 of the second group may be selectively directly connected to the substrate of the display panel 500 on the bonding area 520, or the dummy pad 546 may be selectively electrically connected to other signal lines (for example, The second signal line 534 or the test signal line), so that the plurality of first contacts 122 of the first group and the plurality of second contacts 224 of the second group are operational. The plurality of first contacts 124 of the second group are electrically connected to the plurality of second bonding pads 544 in the first column 540A, and the plurality of second contacts 222 of the first group are electrically connected to the second bonding pads 544 in the second column 540B, and further A plurality of second signal lines 534 (such as data lines) are electrically connected.

It should be noted here that, as described above, according to the pixel density of the display panel 500, the plurality of third circuit connection unit groups 303 can be electrically connected to the plurality of third 5403 bonding pads of the display panel in the same manner, which will not be described again here. In addition, according to the arrangement of the signal lines and the bonding pads, the connection relationship between each group of circuit connection unit groups and the display panel is not limited to that shown in the embodiment. For example, in another embodiment, the plurality of bonding pads in the first row 540A and the plurality of bonding pads in the second row 540B shown in FIG. 2 may be mirror-imaged, and the first circuit connection unit 100 and the second circuit are connected. The unit 200 also corresponds to a mirror change, and may have a connection relationship similar to the above embodiment, which is not repeated here.

The display device of the present invention is electrically connected to the display panel and the circuit board through a circuit connection unit group composed of a first circuit connection unit and a second circuit connection unit, and can be flexibly set according to the pixel density of the display panel. In addition, the display device of the new type has the feature that the first circuit connection unit and the second circuit connection unit do not overlap in the display direction of the display panel, and can be simultaneously bonded with the double-row bonding pads of the display panel. By aligning the contacts up / down with the corresponding bonding pads, the connection can be completed under one pressure, simplifying the manufacturing process and reducing manufacturing costs.

The present invention has been described by the above-mentioned related embodiments, but the above embodiments are merely examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, the spirit and scope of the scope of patent application and the modifications and equal settings are included in the scope of the new model.

10‧‧‧ display device
100‧‧‧First circuit connection unit
110‧‧‧first outer contact
120‧‧‧First inside contact
122‧‧‧Plural first contact of the first group
124‧‧‧ plural first contacts of the second group
130‧‧‧data (source) driver chip
140‧‧‧ Depression
200‧‧‧Second circuit connection unit
210‧‧‧Second Outer Contact
220‧‧‧Second inner contact
222‧‧‧Plural second contact of the first group
224‧‧‧ plural second contacts of the second group
230‧‧‧data (source) driver chip
301‧‧‧First circuit connection unit group
302‧‧‧Second circuit connection unit group
303‧‧‧Third circuit connection unit group
400‧‧‧Circuit Board
500‧‧‧display panel
510‧‧‧display area
520‧‧‧Wiring area
530‧‧‧Signal line
532‧‧‧The first signal line
532L‧‧‧The first plural signal line of the first group
532R‧‧‧The first plural signal line of the second group
534‧‧‧The second signal line
540‧‧‧Joint pad
5401‧‧‧Plural bonding pads for the first group
5402‧‧‧Plural bonding pads of the second group
5403‧‧‧Plural bonding pads of the third group
540A‧‧‧first column
540B‧‧‧Second column
542‧‧‧First Bonding Pad
542L‧‧‧Plural first bonding pad
542R‧‧‧Plural first bonding pads of the second group
544‧‧‧Second Bonding Pad
546‧‧‧Dummy pad
D11, D12, D21, D22, D31, D32, D131, D132, D231, D232‧‧‧ distance
L1, L2‧‧‧ length

FIG. 1 is a schematic plan view of a display device according to an embodiment of the present invention.
FIG. 2 is a partial schematic diagram of a display panel according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a circuit connection unit group according to an embodiment of the present invention.
FIG. 4 and FIG. 5 are configuration diagrams of bonding pads according to different embodiments of the present invention.

Claims (12)

A display device includes:
A display panel includes a plurality of pixels, a plurality of signal lines, and a plurality of bonding pads. The plurality of signal lines are electrically connected to the plurality of pixels, and the plurality of bonding pads are arranged in a first column and a second column and are electrically connected to the plurality of signal lines. ;
A first circuit connection unit comprising a plurality of first inner contacts and a plurality of first outer contacts disposed on opposite sides, at least a part of the plurality of first inner contacts being electrically connected to the plurality of bonding pads in the first row;
A second circuit connection unit including a plurality of second inner contacts and a plurality of second outer contacts disposed on opposite sides, and at least a part of the plurality of second inner contacts is electrically connected to the plurality of bonding pads in the second row; And a circuit board, electrically connecting the plurality of first outer contacts and the plurality of second outer contacts,
The first circuit connection unit and the second circuit connection unit do not overlap in the display direction of the display panel. The display device according to claim 1, wherein:
The plurality of signal lines include a plurality of first signal lines and a plurality of second signal lines, and in each of the pixels, the first signal line and the second signal line are electrically connected to different electrodes of the pixel; and the plurality of bonding pads It includes a plurality of first bonding pads and a plurality of second bonding pads. The plurality of first bonding pads are electrically connected to the plurality of first signal lines, and the plurality of second bonding pads are electrically connected to the plurality of second signal lines. The display device according to claim 2, wherein:
The plurality of first inner contacts includes a first plurality of first contacts and a second plurality of first contacts;
The plurality of second inner contacts includes a first plurality of second contacts and a second plurality of second contacts;
The first circuit connection unit and the second circuit connection unit constitute a first circuit connection unit group, and in the first circuit connection unit group, the plural first contacts of the first group are electrically connected to the plural first At least a part of a bonding pad, the plurality of first contacts of the second group and the plurality of second contacts of the first group are electrically connected to the plurality of second bonding pads, and the plurality of second contacts of the second group are Dummy contacts. The display device according to claim 3, wherein:
The display device further includes a plurality of the first circuit connection units and a plurality of the second circuit connection units to form a plurality of circuit connection unit groups;
In a second circuit connection unit group of the plurality of circuit connection unit groups, the plurality of first contacts of the first group are dummy contacts, the plurality of first contacts of the second group and the first group The plurality of second contacts are electrically connected to the plurality of second bonding pads, and the plurality of second contacts of the second group are electrically connected to another part of the plurality of first bonding pads. The display device according to claim 4, wherein:
In a third circuit connection unit group of the plurality of circuit connection unit groups, the plurality of first contacts of the first group and the plurality of second contacts of the second group are dummy contacts, and the second group The plurality of first contacts and the plurality of second contacts of the first group are electrically connected to the plurality of second bonding pads; and the third circuit connection unit group is disposed on the first circuit connection unit group and the second circuit Connect between unit groups. The display device according to claim 4, wherein the plurality of first bonding pads are configured as a first group of the plurality of first bonding pads and a second group of the plurality of first bonding pads, and the plurality of second bonding pads are disposed on Between the plurality of first bonding pads of the first group and the plurality of first bonding pads of the second group, and in the first circuit connection unit group, the plurality of first contacts of the first group are electrically connected The plurality of first bonding pads of the first group; in the second circuit connection unit group, the plurality of second contacts of the second group are electrically connected to the plurality of first bonding pads of the second group. The display device according to claim 5, wherein the plurality of bonding pads electrically connected to the first circuit connection unit group constitute a first group of the plurality of bonding pads, and the second connection pads electrically connected to the second group of circuit connection unit group are The plurality of bonding pads constitute a second group of the plurality of bonding pads, and the plurality of bonding pads electrically connected to the third group of circuit connection unit groups constitute a third group of the plurality of bonding pads; in the first column, the first The distance between the plurality of bonding pads of one group and the bonding pad adjacent to the plurality of bonding pads of the third group is larger than the phase of the plurality of bonding pads of the first group or the plurality of bonding pads of the third group. The distance between adjacent bonding pads. The display device according to claim 7, wherein in the second column, a distance between the plurality of bonding pads of the first group and the bonding pad adjacent to the plurality of bonding pads of the third group is greater than the first The distance between adjacent bonding pads in the plurality of bonding pads in one group or in the plurality of bonding pads in the third group. The display device according to any one of claims 2 to 5, wherein the plurality of bonding pads further include a plurality of dummy pads disposed in the first column and the second column, and the dummy pads are used to connect the dummy contacts. . The display device according to any one of claims 1 to 8, wherein the plurality of bonding pads in the first column and the plurality of bonding pads in the second column are at least partially provided in a one-to-one correspondence. The display device according to any one of claims 1 to 6, wherein the plurality of bonding pads in the first column and the plurality of bonding pads in the second column are at least partially staggered. The display device according to any one of claims 1 to 8, wherein the display panel includes a display area and a wiring area, the plurality of pixels are disposed in the display area, the plurality of bonding pads are disposed in the wiring area, and the The plurality of bonding pads in the first column are closer to the display area than the plurality of bonding pads in the second column.