TWI688888B - Display apparatus - Google Patents

Abstract

A display apparatus includes a first substrate, at least one active device disposed on the first substrate, a dielectric layer disposed on the at least one active device, at least one pixel electrode electrically connected to the at least one active device, a second substrate disposed opposite the first substrate, a first spacer disposed on the second substrate and a display medium. The dielectric layer has a first bump and a main body portion outside the first bump. At least one pixel electrode is disposed on the main body portion of the dielectric layer. A vertical projection of the first protrusion of the dielectric layer on the first substrate is located within a vertical projection of the first spacer on the first substrate.

Description

Display device

The present invention relates to an electronic device, and particularly to a display device.

With the development of technology, a large number of display devices are used in various electronic products, such as smart phones, smart watches, and tablet computers. Based on the consideration of easy operation, most electronic products have a touch function. In the process of touching electronic products, external force is applied to the display device. Therefore, the display device needs to have good pressure resistance.

In general, a display device includes a pixel array substrate, a counter substrate relative to the pixel array substrate, and a display medium provided between the pixel array substrate and the counter substrate. The counter substrate has a support to maintain the gap between the pixel array substrate and the counter substrate. However, in the pressure resistance test, external force is applied to the display device, causing the opposing substrate to move relative to the pixel array substrate. When the opposite substrate moves relative to the pixel array substrate, the gaps on the opposite substrate damage the alignment film on the pixel array substrate, causing a problem of galaxy mura.

The invention provides a display device with good performance.

A display device according to an embodiment of the present invention includes a first substrate, at least one active device, a dielectric layer, at least one pixel electrode, a second substrate, a first spacer, and a display medium. At least one active element is disposed on the first substrate, and has a first convex portion and a body portion outside the first convex portion. The top surface of the first convex portion has a first distance from the first substrate, the top surface of the main body portion has a second distance from the first substrate, and the first distance is greater than the second distance. At least one pixel electrode is electrically connected to at least one active element, and is disposed on the main body of the dielectric layer. The second substrate is disposed opposite to the first substrate. The first spacer is disposed on the second substrate. The vertical projection of the first convex portion of the dielectric layer on the first substrate is within the vertical projection of the first spacer on the first substrate. The display medium is disposed between the first substrate and the second substrate.

A display device according to an embodiment of the invention includes a first substrate, a plurality of active elements, a dielectric layer, a plurality of pixel electrodes, a second substrate, a first spacer, and a display medium. A plurality of active components are disposed on the first substrate. The dielectric layer is disposed on the first substrate, and has a first convex portion, a main body portion, and a plurality of contact windows. The top surface of the first convex portion has a first distance from the first substrate, the top surface of the main body portion has a second distance from the first substrate, and the first distance is greater than the second distance. A plurality of pixel electrodes are disposed on the main body of the dielectric layer, and are electrically connected to a plurality of active devices through a plurality of contact windows. The second substrate is disposed opposite to the first substrate. The first spacer is disposed on the second substrate. The display medium is disposed between the first substrate and the second substrate. The first convex portion of the dielectric layer includes a main sub-portion and at least one extended sub-portion. The vertical projection of the main sub-section on the first substrate overlaps with the vertical projection of the first spacer on the first substrate, the vertical projection of the main sub-section on the first substrate has a gap, and one of the plurality of contact windows is on the first substrate At least a part of the vertical projection above is located in the gap. At least one extended sub-section extends outward from the main sub-section. The vertical projection of the at least one extension sub-portion on the first substrate extends beyond the vertical projection of the first spacer on the first substrate.

In an embodiment of the invention, the above display device further includes at least one common electrode, an insulating layer, and a first touch signal line. At least one common electrode is disposed on the dielectric layer. The insulating layer is disposed between at least one common electrode and at least one pixel electrode. The first touch signal line is electrically connected to at least one common electrode. The first touch signal line has a first auxiliary portion, and the first auxiliary portion completely covers the first convex portion of the dielectric layer.

In an embodiment of the invention, the vertical projection of the first auxiliary portion of the first touch signal line on the first substrate is located within the vertical projection of the first spacer on the first substrate, and the first auxiliary portion A portion of the vertically projected edge on the first substrate is substantially parallel to a portion of the vertically projected edge of the first spacer on the first substrate.

In an embodiment of the invention, the above display device further includes a second spacer and a second touch signal line. The second spacer is disposed on the second substrate and is separated from the first spacer. The second touch signal line is disposed on the first substrate and is electrically connected to at least one common electrode. The second touch signal line has a second auxiliary part. The vertical projection of the second auxiliary portion on the first substrate is within the vertical projection of the second spacer on the first substrate, and a portion of the edge of the vertical projection of the second auxiliary portion on the first substrate and the second gap are A part of the vertically projected edge on the first substrate is substantially parallel.

In an embodiment of the invention, the above-mentioned dielectric layer further has a first convex portion and a second convex portion outside the main body portion, and the second auxiliary portion completely covers the second convex portion of the dielectric layer.

In an embodiment of the present invention, the above-mentioned dielectric layer further has a first convex portion and a second convex portion outside the main body portion, the top surface of the second convex portion has a third distance from the first substrate, and the third distance is greater than The second distance is less than the first distance. The display device further includes a second spacer, which is disposed on the second substrate. The vertical projection of the second convex portion of the dielectric layer on the first substrate overlaps the vertical projection of the second spacer on the first substrate, and the height of the first spacer and the height of the second spacer are substantially equal.

In an embodiment of the invention, the vertical projection of the second convex portion on the first substrate is within the vertical projection of the second spacer on the first substrate.

In an embodiment of the present invention, the edge of the vertical projection of the first convex portion on the first substrate and the edge of the vertical projection of the first spacer on the first substrate are separated by a distance L, and L≧1 μm.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

In the drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity. Throughout the specification, the same reference numerals indicate the same or similar elements. It should 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 physical and/or electrical connections. Furthermore, "electrical connection" or "coupling" can mean that there are other components between the two components.

As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within the acceptable deviation range of the specific value determined by those of ordinary skill in the art, taking into account the measurements and A certain amount 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%. In addition, "about", "approximately" or "substantially" used in this article can select a more acceptable range of deviation or standard deviation according to optical properties, etching properties or other properties, instead of applying one standard deviation to all properties .

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those 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 as having meanings consistent with their meanings in the context of the relevant technology and the present invention, 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 diagrams of idealized embodiments. Therefore, it is possible to anticipate a change in the shape of the graph as a result of, for example, manufacturing techniques and/or tolerances. Therefore, the embodiments described herein should not be construed as being limited to the specific shape of the area as shown herein, but include deviations in shapes caused by manufacturing, for example. For example, an area shown or described as flat may generally have rough and/or non-linear characteristics. In addition, the acute angle shown may be round. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the precise shapes of the regions, and are not intended to limit the scope of the claims.

Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same element symbols are used in the drawings and description to denote the same or similar parts.

FIG. 1 is a schematic top view of a display device 10 according to a first embodiment of the invention. 2 is a schematic cross-sectional view of the display device 10 according to the first embodiment of the invention. Fig. 2 corresponds to the section line A-A' of Fig. 1. 1 omits the first substrate 110, the insulating layer 120, the insulating layer 130, the insulating layer 160, the alignment film PI1, the display medium 300, the alignment film PI2, the overcoat layer 240, the color filter layer 230, and the light shielding of FIG. Layer 220 and second substrate 210.

1 and 2, the display device 10 includes a pixel array substrate 100, a counter substrate 200, and a display medium 300. The opposite substrate 200 is provided opposite to the pixel array substrate 100. The display medium 300 is disposed between the pixel array substrate 100 and the counter substrate 200. For example, in this embodiment, the display medium 300 may be liquid crystal, but the invention is not limited thereto.

The pixel array substrate 100 includes a first base 110. The first substrate 110 is mainly used to carry the pixel array substrate 100. For example, in this embodiment, the material of the first substrate 110 may be glass, quartz, organic polymer, or opaque/reflective materials (for example: wafers, ceramics, or other applicable materials), Or other applicable materials.

The pixel array substrate 100 includes a plurality of active elements T, which are disposed on the first substrate 110. The active element T is electrically connected to the scan line SL and the data line DL. The active device T includes a thin film transistor, and has a gate G, a semiconductor layer SE, and a source S and a drain D electrically connected to different two regions of the semiconductor layer SE, respectively. An insulating layer 120 is provided between the gate G and the semiconductor layer SE. The scanning line SL is electrically connected to the gate G of the thin film transistor. For example, in this embodiment, the gate G may be a conductive pattern extending outward from the scan line SL, but the invention is not limited thereto. The data line DL is electrically connected to the source S of the thin film transistor T. For example, in this embodiment, the source electrode S may be a portion where the data line DL overlaps the semiconductor layer SE, but the invention is not limited to this.

In this embodiment, the gate G may be located under the semiconductor layer SE, and the active element T may include a bottom gate thin film transistor. However, the present invention is not limited thereto. According to other embodiments, the active device T may also include a top gate type, a three-dimensional thin film transistor, or other suitable types of thin film transistors. In this embodiment, the material of the semiconductor layer SE may be amorphous silicon, that is, the active device T may be an amorphous silicon thin film transistor (amorphous silicon TFT, a-Si TFT). However, the present invention is not limited to this. In other embodiments, the material of the semiconductor layer SE may include microcrystalline silicon, nanocrystalline silicon, polycrystalline silicon, single crystal silicon, organic semiconductor materials, oxide semiconductor materials, carbon nanotubes/rods, perovskite or other suitable materials s material. In addition, in this embodiment, the gate G and the scan line SL may belong to the first conductive layer, and the data line DL, the source S, and the drain D may belong to the second conductive layer. However, the present invention is not limited to this. In other embodiments, the film layers to which the gate G, the scan line SL, the data line DL, the source S, and the drain D belong can also vary according to actual needs.

In this embodiment, the pixel array substrate 100 may optionally include an insulating layer 130 (shown in FIG. 2 ), which is disposed on the active device T.

The pixel array substrate 100 includes a dielectric layer 140 disposed on the active device T. For example, in this embodiment, the dielectric layer 140 may be selectively on the insulating layer 130, but the invention is not limited thereto.

In this embodiment, the dielectric layer 140 has a first convex portion 142 and a body portion 146 outside the first convex portion 142. The top surface 142a of the first convex portion 142 and the first substrate 110 have a first distance D1, the top surface 146a of the main body portion 146 and the first substrate 110 have a second distance D2, and the first distance D1 is greater than the second distance D2. That is, the first convex portion 142 is convex relative to the main body portion 146. In this embodiment, the first convex portion 142 may be selectively disposed on one active element T to optimize the aperture ratio of the pixel array substrate 100, but the invention is not limited thereto. For example, in this embodiment, the material of the dielectric layer 140 may be photoresist, but the invention is not limited to this.

The pixel array substrate 100 includes a plurality of pixel electrodes 150 electrically connected to the plurality of active elements T, and is disposed on the body portion 146 of the dielectric layer 140. For example, in this embodiment, the pixel electrode 150 includes a main portion 152 and an extension portion 154. The main portion 152 of the pixel electrode 150 overlaps a plurality of slits (not shown) of the common electrodes 182 and 184. The main portion 152 (shown in FIG. 1) of the pixel electrode 150 is disposed on the main portion 146 of the dielectric layer 140. The extension 154 of the pixel electrode 150 extends from the main portion 152 into the contact window 140 a of the dielectric layer 140 In order to be electrically connected to the drain electrode D of the thin film transistor, it is worth noting that neither the main portion 152 nor the extension portion 154 of the pixel electrode 150 is higher than the top surface 142a of the dielectric layer. In this embodiment, the vertical projection of the first convex portion 142 of the dielectric layer 140 on the first substrate 110 may have a notch 142c (marked in FIG. 1), and the vertical projection of the contact window 140a on the first substrate 110 is at least A part is located in the notch 142c.

The pixel array substrate 100 includes an insulating layer 160 and is disposed between the common electrodes 182 and 184 and the pixel electrode 150.

In this embodiment, the pixel array substrate 100 may further include a first touch signal line 172 and a second touch signal line 174, which are disposed on the first substrate 110 and are electrically connected to at least one common electrode 182, 184. For example, in this embodiment, the first touch signal line 172 and the second touch signal line 174 may be disposed on the insulating layer 160, but the invention is not limited thereto. The first touch signal line 172 and the second touch signal line 174 include a first auxiliary portion 172a and a second auxiliary portion 174a, respectively. In this embodiment, the first auxiliary portion 172a and the second auxiliary portion 174a can be selectively disposed on the two active elements T, respectively. It is worth noting that in this embodiment, the first auxiliary portion 172a completely covers the first convex portion 142 of the dielectric layer 140 so that the height difference from the opening area is D1-D2+K, while the second auxiliary portion The height difference between 174a and the opening area is K, and the projections of the main portion 152 and the extension portion 154 of the pixel electrode 150 will not overlap the first auxiliary portion 172a and the second auxiliary portion 174a. In addition, the film thickness K of the first auxiliary portion 172a and the film thickness K of the second auxiliary portion 174a are both thick. For example, the optimal thickness of the film thickness K in this embodiment may be greater than 0.3 μm, but the invention is not limited thereto.

The pixel array substrate 100 includes at least one common electrode 182, 184 disposed on the dielectric layer 140. For example, in this embodiment, the insulating layer 160 may be disposed on the pixel electrode 150, and at least one common electrode 182, 184 may be disposed on the insulating layer 160. That is to say, in this embodiment, at least one common electrode 182, 184 may be disposed above the pixel electrode 150. However, the present invention is not limited to this. According to other embodiments, the pixel electrode 150 may also be disposed above the at least one common electrode 182, 184. In this embodiment, at least one common electrode 182, 184 may include a first common electrode 182 and a second common electrode 184, which are electrically connected to the first touch signal line 172 and the second touch signal line 174. During the touch period, the common electrodes 182 and 184 serve as touch sensing pads. During the display period, the voltage difference between the common electrodes 182, 184 and the pixel electrode 150 is used to drive the display medium 300. In this embodiment, the first common electrode 182 and the second common electrode 184 may be connected to belong to the same touch sensing pad. However, the present invention is not limited to this. According to other embodiments, the first common electrode 182 and the second common electrode 184 may be separated and belong to different touch sensing pads.

In this embodiment, the pixel array substrate 100 includes an alignment film PI1, for example, disposed on at least one common electrode 182, 184.

The counter substrate 200 includes a second base 210. The second substrate 210 is mainly used to support the counter substrate 200. For example, in this embodiment, the material of the second substrate 210 may be glass, quartz, organic polymer, or other applicable materials.

In this embodiment, the counter substrate 200 may include a first spacer 252 and a second spacer 254 spaced apart from the first spacer 252, and are disposed on the second base 210. The vertical projection of the first spacer 252 on the first substrate 110 overlaps with the vertical projection of the first convex portion 142 on the first substrate 110. When the display device 10 is not under external force, the first spacer 252 abuts the first convex portion 142, and there is a gap (D1-D2+H1-H2) between the second spacer 254 and the pixel array substrate 100, It can be used to improve the yield interval of the liquid crystal dropping process. That is, the first spacer 252 can be regarded as a primary spacer, and the second spacer 254 can be regarded as a secondary spacer. In this embodiment, the height H1 of the first spacer 252 may be greater than the height H2 of the second spacer 254, but the invention is not limited thereto. In other embodiments, the height H1 of the first spacer 252 may be equal to the height H2 of the second spacer 254. At this time, when the display device 10 is not subjected to external force, the first spacer 252 abuts the first convex portion 142 The gap between the second spacer 254 and the pixel array substrate 100 is D1-D2.

In this embodiment, the vertical projection of the first auxiliary portion 172a of the first touch signal line 172 on the first substrate 110 is within the vertical projection of the first spacer 252 on the first substrate 110, and the first auxiliary portion A portion of the vertically projected edge 172b (marked in FIG. 1) of 172a on the first substrate 110 and a portion of the vertically projected edge 252b (marked in FIG. 1) of the first spacer 252 on the first substrate 110 are substantially parallel However, the present invention is not limited thereto. The vertical projection of the first auxiliary portion 172a of the first touch signal line 172 on the first substrate 110 and the vertical projection of the first spacer 252 on the first substrate 110 may be, for example, Ellipse, circle, polygon or other suitable shapes, the two shapes may be similar or different, only the vertical projection of the first auxiliary portion 172a of the first touch signal line 172 on the first substrate 110 is located at the first interval The object 252 is within the vertical projection on the first substrate 110. The vertical projection of the second auxiliary portion 174a of the second touch signal line 174 on the first substrate 110 is within the vertical projection of the second spacer 254 on the first substrate 110, and the second auxiliary portion 174a is on the first substrate 110 A portion of the vertically projected edge 174b (marked in FIG. 1) on the top is substantially parallel to a portion of the vertically projected edge 254b (marked in FIG. 1) of the second spacer 254 on the first substrate 110, but the present invention does not This is limited, the vertical projection of the second auxiliary portion 174a of the second touch signal line 174 on the first substrate 110 and the vertical projection of the second spacer 254 on the first substrate 110 may be, for example, elliptical, circular, Polygon or other suitable shapes, the two shapes may be similar or different.

In addition, in this embodiment, the counter substrate 200 may further include a light-shielding layer 220, a color filter layer 230, an over-coat layer 240, and an alignment film PI2 sequentially stacked on the second substrate 210, and The first spacer 252 and the second spacer 254 may be disposed on the protective layer 240, but the invention is not limited thereto.

It is worth noting that the first spacer 252 is disposed above the first convex portion 142 corresponding to the dielectric layer 140, and the main portion 152 and the extension portion 154 of the pixel electrode 150 are disposed lower than the top of the dielectric layer 140面142a. In other words, the top surface 252a of the first spacer 252 is higher than the main portion 152 and the extending portion 154 of the pixel electrode 150. Therefore, the first spacer 252 is less likely to damage the alignment film PI1 on and at the edges of the main portion 152 and the extension portion 154 of the pixel electrode 150 due to the horizontal shift of the counter substrate 200 and the pixel array substrate 100.

In this embodiment, the vertical projection of the first convex portion 142 of the dielectric layer 140 on the first substrate 110 is within the vertical projection of the first spacer 252 on the first substrate 110. That is, the top surface 252a of the first spacer 252 is larger than the top surface 142a of the first convex portion 142 of the dielectric layer 140. For example, in this embodiment, the edge of the vertical projection of the first convex portion 142 on the first substrate 110 is separated from the edge of the vertical projection of the first spacer 252 on the first substrate 110 by a distance L, and L ≥1μm. Preferably, L≧3 μm, but the invention is not limited to this. In this way, even if the opposing substrate 200 and the pixel array substrate 100 are vertically vibrated or pressed, the edge 252b of the vertical projection of the first spacer 252 on the first substrate 110 can still be located in the dielectric layer 140 Of the first convex portion 142 outside. When the top surface 252a of the first spacer 252 abuts against the first convex portion 142 of the dielectric layer 140, even if the opposing substrate 200 and the pixel array substrate 100 are continuously vibrated or pressed in the vertical direction, the first The edge 252b of the vertical projection of a spacer 252 on the first substrate 110 is located outside the top surface 142 of the first convex portion 142, so it is not easy to damage the first convex of the dielectric layer 140 with vibration or pressure in the vertical direction The alignment film PI1 on the top surface 142a of the portion 142. In this way, the problem of galaxy mura can be significantly improved.

FIG. 3 is a schematic top view of a display device 10A according to a second embodiment of the invention. 4 is a schematic cross-sectional view of a display device 10A according to a second embodiment of the invention. Fig. 4 corresponds to the section line A-A' of Fig. 3. 3, the first substrate 110, the insulating layer 120, the insulating layer 130, the insulating layer 160, the alignment film PI1, the display medium 300, the alignment film PI2, the protective layer 240, the color filter layer 230, the light shielding layer 220 and the first Second substrate 210.

The display device 10A of FIGS. 3 and 4 is similar to the display device 10 of FIGS. 1 and 2, and the differences between the two are as follows. 3 and 4, the display device 10A may not include the first touch signal line 172 and the second touch signal line 174. The dielectric layer 140 of the display device 10A further has a first convex portion 142 and a second convex portion 144 outside the main body portion 146, and a top surface 144a of the second convex portion 144 has a third distance D3 from the first substrate 110. In this embodiment, the third distance D3 is greater than the second distance D2, and the first distance D1 and the third distance D3 may be equal, but the invention is not limited thereto. The vertical projection of the second convex portion 144 of the dielectric layer 140 on the first substrate 110 overlaps the vertical projection of the second spacer 254 on the first substrate 110, but the invention is not limited thereto. . In other embodiments, the vertical projection of the second spacer 254 on the first substrate 110 may be located within or outside the vertical projection of the second convex portion 144 on the first substrate 110 according to the size of the opening area.

FIG. 5 is a schematic top view of a display device 10B according to a third embodiment of the invention. 6 is a schematic cross-sectional view of a display device 10B according to a third embodiment of the invention. Fig. 6 corresponds to the section line A-A' of Fig. 5. FIG. 5 omits the first substrate 110, the insulating layer 120, the insulating layer 130, the insulating layer 160, the alignment film PI1, the display medium 300, the alignment film PI2, the protective layer 240, the color filter layer 230, the light shielding layer 220 and the Second substrate 210.

The display device 10B of FIGS. 5 and 6 is similar to the display device 10A of FIGS. 3 and 4, and the difference between the two is as follows. 5 and 6, the dielectric layer 140 of the display device 10B also has a second convex portion 144, and a top surface 144 a of the second convex portion 144 has a third distance D3 from the first substrate 110. Unlike the display device 10A, in this embodiment, the third distance D3 is greater than the second distance D2 and less than the first distance D1, and the height H1 of the first spacer 252 and the height H2' of the second spacer 254 are substantially The above values can be equal. At this time, when the display device 10 is not under external force, the first spacer 252 abuts the first convex portion 142, and there is a gap between the second spacer 254 and the pixel array substrate 100 (D1-D3 ) Can be used to improve the yield interval of the liquid crystal dropping process.

In addition, in this embodiment, the vertical projection of the second convex portion 144 on the first substrate 110 may be within the vertical projection of the second spacer 254 on the first substrate 110.

7 is a schematic top view of a display device 10C according to a fourth embodiment of the invention. 8 is a schematic cross-sectional view of a display device 10C according to a fourth embodiment of the invention. Fig. 8 corresponds to the section line A-A' of Fig. 7. FIG. 7 omits the first substrate 110, the insulating layer 120, the insulating layer 130, the insulating layer 160, the alignment film PI1, the display medium 300, the alignment film PI2, the protective layer 240, the color filter layer 230, the light shielding layer 220 and the Second substrate 210.

The display device 10C of FIGS. 7 and 8 is similar to the display device 10 of FIGS. 1 and 2, and the differences between the two are as follows. Referring to FIGS. 7 and 8, the dielectric layer 140 of the display device 10C further has a first convex portion 142 and a second convex portion 144 outside the main body portion 146. The top surface 144 a of the second convex portion 144 and the first substrate 110 have The third distance D3. In this embodiment, the third distance D3 is greater than the second distance D2, and the first distance D1 is equal to the third distance D3. In the present embodiment, the second auxiliary portion 174a completely covers the second convex portion 144 of the dielectric layer 140. In addition, the film thickness k of the first auxiliary portion 172a and the second auxiliary portion 174a in FIG. 8 can be designed according to the resistance value, and the optimal thickness is between 0.05 and 0.5 μm, but not limited to this.

9 is a schematic top view of a display device 10D according to a fifth embodiment of the invention. 10 is a schematic cross-sectional view of a display device 10D according to a fifth embodiment of the invention. Fig. 10 corresponds to the section line A-A' of Fig. 9. 9 omits the first substrate 110, insulating layer 120, insulating layer 130, insulating layer 160, alignment film PI1, display medium 300, alignment film PI2, protective layer 240, color filter layer 230, light-shielding layer 220 and Second substrate 210.

The display device 10D of FIGS. 9 and 10 is similar to the display device 10C of FIGS. 7 and 8, the difference between the two is that the display device 10D may not include the first touch signal line 172 and the second touch signal line of the display device 10C 174.

FIG. 11 is a schematic top view of a display device 10E according to a sixth embodiment of the invention. 12 is a schematic cross-sectional view of a display device 10E according to a sixth embodiment of the invention. Fig. 12 corresponds to the section line A-A' of Fig. 11. FIG. 11 omits the first substrate 110, the insulating layer 120, the insulating layer 130, the insulating layer 160, the alignment film PI1, the display medium 300, the alignment film PI2, the protective layer 240, the color filter layer 230, the light shielding layer 220, and the first of FIG. Second substrate 210. The display device 10E of FIGS. 11 and 12 is similar to the display device 10D of FIGS. 9 and 10, and the differences between the two are as follows.

11 and 12, the first convex portion 142 of the dielectric layer 140 includes a main sub-section 142-1 and an extended sub-section 142-2. The vertical projection of the main sub-section 142-1 of the first convex portion 142 on the first substrate 110 overlaps with the vertical projection of the first spacer 252 on the first substrate 110. The main sub-section 142-1 of the first convex portion 142 The vertical projection on the first substrate 110 has a notch 142c, and at least a part of the vertical projection of the contact window 140a on the first substrate 110 is located in the notch 142c. The extended sub-portion 142-2 of the first convex portion 142 extends outward from the main sub-portion 142-1 of the first convex portion 142. The vertical projection of the extended sub-portion 142-2 of the first convex portion 142 on the first substrate 110 extends beyond the vertical projection of the first spacer 252 on the first substrate 110. At least a portion of the vertical projection of the extended sub-portion 142-2 of the first convex portion 142 on the first substrate 110 is located between the vertical projections of the pixel electrodes 150 on the first substrate 110.

Similarly, the second convex portion 144 of the dielectric layer 140 includes a main sub-section 144-1 and an extended sub-section 144-2. The vertical projection of the main sub-portion 144-1 of the second convex portion 144 on the first substrate 110 overlaps with the vertical projection of the first spacer 252 on the first substrate 110. The extended sub-portion 144-2 of the second convex portion 144 extends outward from the main sub-portion 144-1 of the second convex portion 144. The vertical projection of the extended sub-portion 144-2 of the second convex portion 144 on the first substrate 110 extends beyond the vertical projection of the second spacer 254 on the first substrate 110. At least a portion of the vertical projection of the extended sub-portion 144-2 of the second convex portion 144 on the first substrate 110 is located between the vertical projections of the pixel electrodes 150 on the first substrate 110.

Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

10. 10A～10E: display device

100: pixel array substrate

110: first base

120, 130, 160: insulating layer

140: dielectric layer

140a: contact window

142: First convex

142-1, 144-1: main sub

142-2, 144-2: extended subdivision

142a, 144a, 146a, 252a: top surface

142c: Notch

144: second convex

146: Main body

150: pixel electrode

152: Main Department

154: Extension

172: The first touch signal line

172a: First Auxiliary Department

172b, 174b, 252b, 254b: edge

174: Second touch signal line

174a: Second Auxiliary Department

182, 184: common electrode

200: counter substrate

210: second base

220: shading layer

230: color filter layer

240: protective layer

252: First spacer

254: Second spacer

300: display medium

A-A’: section line

DL: data cable

D: source

D1, D2, D3, L: distance

G: gate

H1, H2, H2’: height

K, k: film thickness

PI1, PI2: alignment film

SL: Scan line

SE: Semiconductor layer

S: source

T: Active component

FIG. 1 is a schematic top view of a display device 10 according to a first embodiment of the invention. 2 is a schematic cross-sectional view of the display device 10 according to the first embodiment of the invention. FIG. 3 is a schematic top view of a display device 10A according to a second embodiment of the invention. 4 is a schematic cross-sectional view of a display device 10A according to a second embodiment of the invention. FIG. 5 is a schematic top view of a display device 10B according to a third embodiment of the invention. 6 is a schematic cross-sectional view of a display device 10B according to a third embodiment of the invention. 7 is a schematic top view of a display device 10C according to a fourth embodiment of the invention. 8 is a schematic cross-sectional view of a display device 10C according to a fourth embodiment of the invention. 9 is a schematic top view of a display device 10D according to a fifth embodiment of the invention. 10 is a schematic cross-sectional view of a display device 10D according to a fifth embodiment of the invention. FIG. 11 is a schematic top view of a display device 10E according to a sixth embodiment of the invention. 12 is a schematic cross-sectional view of a display device 10E according to a sixth embodiment of the invention.

10: display device

100: pixel array substrate

110: first base

120, 130, 160: insulating layer

140: dielectric layer

140a: contact window

142: First convex

142a, 146a, 252a: top surface

146: Main body

154: Extension

172a: First Auxiliary Department

174a: Second Auxiliary Department

182, 184: common electrode

200: counter substrate

210: second base

220: shading layer

230: color filter layer

240: protective layer

252: First spacer

254: Second spacer

300: display medium

A-A’: section line

D: source

D1, D2, L: distance

G: gate

H1, H2: height

K: film thickness

PI1, PI2: alignment film

SE: Semiconductor layer

S: source

T: Active component

Claims (9)

A display device includes: a first substrate; at least one active element, disposed on the first substrate; a dielectric layer, disposed on the at least one active element, and having a first convex portion and the first convex A body portion outside the portion, wherein a top surface of the first convex portion has a first distance from the first substrate, a top surface of the body portion has a second distance from the first substrate, and the first The distance is greater than the second distance; at least one pixel electrode is electrically connected to the at least one active element and is disposed on the body portion of the dielectric layer; a second substrate is disposed opposite the first substrate A first spacer disposed on the second substrate, wherein a vertical projection of the first convex portion of the dielectric layer on the first substrate is located on one of the first spacers on the first substrate Within the vertical projection; and a display medium disposed between the first substrate and the second substrate, wherein the edge of the vertical projection of the first convex portion on the first substrate and the first spacer are on the first The edges of the vertical projection on a substrate are separated by a distance L, and L

1μm. A display device includes: a first substrate; at least one active element, disposed on the first substrate; a dielectric layer, disposed on the at least one active element, and having a first convex portion and the first convex A body portion outside the portion, wherein a top surface of the first convex portion and the first The substrate has a first distance, a top surface of the main body portion has a second distance from the first substrate, and the first distance is greater than the second distance; at least one pixel electrode is electrically connected to the at least one active element Connected and disposed on the main body of the dielectric layer; a second substrate disposed on the opposite side of the first substrate; a first spacer disposed on the second substrate, wherein the dielectric layer A vertical projection of the first convex portion on the first substrate is within a vertical projection of the first spacer on the first substrate; a display medium is disposed between the first substrate and the second substrate At least one common electrode, disposed on the dielectric layer; an insulating layer, disposed between the at least one common electrode and the at least one pixel electrode; and a first touch signal line, and the at least one common electrode Electrically connected, wherein the first touch signal line has a first auxiliary portion, and the first auxiliary portion completely covers the first convex portion of the dielectric layer. The display device according to item 2 of the patent application scope, wherein a vertical projection of the first auxiliary portion of the first touch signal line on the first substrate is located on the first spacer on the first substrate Within a vertical projection, and a portion of the edge of the vertical projection of the first auxiliary portion on the first substrate and a portion of the edge of the vertical projection of the first spacer on the first substrate are substantially parallel. The display device as described in item 2 of the patent application scope further includes: A second spacer disposed on the second substrate and separated from the first spacer; and a second touch signal line disposed on the first substrate and electrically connected to the at least one common electrode , Wherein the second touch signal line has a second auxiliary portion, a vertical projection of the second auxiliary portion on the first substrate is within a vertical projection of the second spacer on the first substrate, and A portion of the vertically projected edge of the second auxiliary portion on the first substrate and a portion of the vertically projected edge of the second spacer on the first substrate are substantially parallel. The display device according to item 4 of the patent application range, wherein the dielectric layer further has the first convex portion and a second convex portion outside the main body portion, and the second auxiliary portion completely covers the dielectric layer The second convex portion. A display device includes: a first substrate; at least one active element, disposed on the first substrate; a dielectric layer, disposed on the at least one active element, and having a first convex portion and the first convex A body portion outside the portion, wherein a top surface of the first convex portion has a first distance from the first substrate, a top surface of the body portion has a second distance from the first substrate, and the first The distance is greater than the second distance; at least one pixel electrode is electrically connected to the at least one active element and is disposed on the body portion of the dielectric layer; a second substrate is disposed opposite the first substrate A first spacer, disposed on the second substrate, wherein the first of the dielectric layer A vertical projection of a convex portion on the first substrate is within a vertical projection of the first spacer on the first substrate; a display medium is disposed between the first substrate and the second substrate, wherein The dielectric layer further has the first convex portion and a second convex portion outside the main body portion, a top surface of the second convex portion has a third distance from the first substrate, and the third distance is greater than the first Two distances less than the first distance; and a second spacer disposed on the second substrate, wherein a vertical projection of the second convex portion of the dielectric layer on the first substrate overlaps the second One of the spacers is vertically projected on the first substrate, and the height of the first spacer is substantially equal to the height of the second spacer. The display device as recited in item 6 of the patent application range, wherein the vertical projection of the second convex portion on the first substrate is within the vertical projection of the second spacer on the first substrate. A display device includes: a first substrate; a plurality of active elements, disposed on the first substrate; a dielectric layer, disposed on the first substrate, and having a first convex portion, a main body portion, and multiple Contact windows, wherein a top surface of the first convex portion has a first distance from the first substrate, a top surface of the body portion has a second distance from the first substrate, and the first distance is greater than the A second distance; a plurality of pixel electrodes are provided on the main body of the dielectric layer, and are electrically connected to the active elements through the contact windows; A second substrate, disposed opposite to the first substrate; a first spacer, disposed on the second substrate; and a display medium, disposed between the first substrate and the second substrate; wherein, The first convex portion of the dielectric layer includes: a main sub-section, a vertical projection of the main sub-section on the first substrate overlaps with a vertical projection of the first spacer on the first substrate, the The vertical projection of the main sub-portion on the first substrate has a notch, at least a part of one of the contact windows, a vertical projection on the first substrate is located in the notch, and at least one extended sub-portion is formed by the The main sub-portion extends outward, wherein the vertical projection of the at least one extended sub-portion on the first substrate extends beyond the vertical projection of the first spacer on the first substrate. The display device as claimed in item 8 of the patent application range, wherein at least a part of the vertical projection of the at least one extension sub-portion on the first substrate is located among the plurality of vertical projections of the pixel electrodes on the first substrate between.

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