CN219958043U - Reflection type display screen and electronic equipment - Google Patents

Abstract

The utility model relates to the technical field of display screens, and discloses a reflective display screen, which comprises a top substrate, an array substrate and a filling layer between the top substrate and the array substrate, wherein the top substrate comprises a top electrode, the array substrate comprises a plurality of pixel units, each pixel unit comprises a substrate, a thin film transistor and a pixel electrode, an insulating layer provided with a contact hole is arranged between the pixel electrode and the thin film transistor, the pixel electrode is electrically connected with the thin film transistor at the contact hole, the top electrode is provided with a compensation part extending along a first direction at the position corresponding to the contact hole, the distance between the top electrode and the pixel electrode is the same in the first direction, and the distance between the top electrode and the pixel electrode is kept the same through arranging the compensation part on the top electrode corresponding to the contact hole, so that the display effect of each position in the pixel unit is the same, and the integral display effect is improved. The utility model also provides an electronic device comprising the reflective display device.

Description

Reflection type display screen and electronic equipment

Technical Field

The utility model relates to the technical field of display screens, in particular to a reflective display screen and electronic equipment.

Background

According to whether the display screen depends on external light, the display screen can be divided into a full-transparent display screen, a reflection-type display screen and a semi-transparent and semi-reflection-type display screen, the reflection-type display screen can realize display under the irradiation of the external light, and a backlight module is not required to be additionally arranged, so that the reflection-type display screen such as electronic paper is already a popular direction for research in the industry.

The reflective display screen in the prior art generally comprises an upper substrate, a lower substrate and a filling medium layer clamped in the upper substrate and the lower substrate, wherein the lower substrate comprises a thin film transistor and wiring thereof, an insulating layer formed on the thin film transistor and the wiring thereof, and a pixel electrode formed on the insulating layer, wherein a connecting hole is formed in the insulating layer for communicating the pixel electrode and the thin film transistor, but the filling medium at the connecting hole and the rest position of the pixel electrode have larger height difference, so that when an electric field is driven, the response speed at the connecting hole and other positions have time difference, thereby influencing the display consistency of a display area.

Disclosure of Invention

The present utility model is directed to solving at least one of the problems of the background art. Therefore, the utility model provides the reflective display screen and the electronic equipment, and the reflective display screen has the same imaging effect in the area between the top substrate and the array substrate by reasonably designing the electrode layers of the top substrate and the array substrate, so that the overall display effect is improved.

According to the reflective display screen, according to the first aspect of the embodiment of the utility model, the reflective display screen comprises a top substrate, a filling layer and an array substrate, wherein the filling layer is arranged between the top substrate and the array substrate, the top substrate comprises a top electrode, the filling layer comprises a filling medium, the array substrate comprises a plurality of pixel units, each pixel unit comprises a substrate, a thin film transistor and a pixel electrode, an insulating layer is arranged between the pixel electrode and the thin film transistor, the insulating layer is provided with a contact hole, the pixel electrode extends along a first direction at the contact hole until the pixel electrode is electrically connected with the thin film transistor, a compensation part extending along the first direction is arranged at the position corresponding to the contact hole, the distance between the top electrode and the pixel electrode is the same in the first direction, and the compensation part extending along the same direction is arranged at the position corresponding to the contact hole on the top electrode, so that the distances between the top electrode and the pixel electrode are always kept the same, the contact hole and the position of the pixel electrode and the pixel electrode are different in the first direction, and further the problem that the reflective display screen is completely synchronous is solved.

According to another embodiment of the present utility model, the contact hole and the compensation portion have the same longitudinal section pattern, so that the distance between the contact hole and each point of the compensation portion is the same as the distance between the pixel electrode and the rest of the top electrode, and display synchronism of each point is maintained.

According to another embodiment of the utility model, a transparent material is filled between the compensation part and the top substrate, so that the light entering and exiting is not affected at the compensation part.

According to another embodiment of the utility model, the transparent material is a photoresist.

According to another embodiment of the present utility model, a common electrode is further disposed in each pixel unit, and a pattern of the pixel electrode in the projection direction covers a pattern of the common electrode in the projection direction.

According to another embodiment of the present utility model, the thin film transistor includes a gate electrode, a semiconductor, a source electrode, and a drain electrode, and the drain electrode and the pixel electrode are electrically connected to each other at the contact hole.

According to another embodiment of the present utility model, a color filter is further disposed on the top substrate, the color filter being disposed between the top substrate and the top electrode.

According to another embodiment of the present utility model, the display device further includes scan lines and data lines intersecting each other to form a plurality of pixel cells.

According to another embodiment of the present utility model, the filling medium is one of electronic paste, electronic ink or liquid crystal.

An electronic device according to an embodiment of the second aspect of the present utility model includes any one of the reflective display screens described above.

Compared with the prior art, the utility model has the following beneficial effects:

the embodiment of the first aspect of the utility model discloses a reflective display screen, which comprises a top substrate, a filling layer and an array substrate, wherein the filling layer is arranged between the top substrate and the array substrate, the top substrate comprises a top electrode, the filling layer comprises a filling medium, the array substrate comprises a plurality of pixel units, each pixel unit comprises a substrate, a thin film transistor and a pixel electrode, an insulating layer is arranged between the pixel electrodes and the thin film transistor, a contact hole is formed in the insulating layer, the pixel electrodes extend along a first direction at the contact hole until the pixel electrodes are electrically connected with the thin film transistor, a compensation part extending along the first direction is arranged at the position corresponding to the contact hole of the top electrode, the distance between the top electrode and the pixel electrodes is the same in the first direction, and the compensation part extending along the same direction is arranged at the position corresponding to the contact hole of the top electrode, so that the distance between the top electrode and the pixel electrode is always the same, the problem of non-synchronous display caused by different distances between the contact hole and the other positions of the pixel electrode and the top electrode is avoided, the whole reflective display screen is improved, and the whole reflective display screen is improved.

The second embodiment of the utility model discloses an electronic device, which comprises a reflective display screen, wherein the reflective display screen is provided with a compensation part extending in the same direction on a top electrode corresponding to a contact hole, so that the distances between the top electrode and a pixel electrode are always kept the same, the problem of display dyssynchrony caused by different distances between the contact hole and other positions on the pixel electrode and the top electrode is avoided, the same display effect is kept in each position in a pixel unit of the reflective display screen, and the integral display effect of the reflective display screen is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The drawings are only for purposes of illustrating embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic cross-sectional view of an embodiment of a reflective display device according to the prior art;

FIG. 2 is a schematic cross-sectional view of an embodiment of a reflective display screen according to the present utility model;

FIG. 3 is a schematic cross-sectional view of an embodiment of an array substrate of a reflective display screen according to the present utility model;

FIG. 4 is a schematic cross-sectional view of another embodiment of a reflective display screen according to the present utility model;

FIG. 5 is a schematic cross-sectional view of an embodiment of an electronic device according to the present utility model;

the meaning of the labels in the figures is:

1. a reflective display device; 2. a first substrate; 3. a second substrate; 4. a pixel electrode layer;

5. a contact location; 6. a metal layer;

10. an electronic device;

100. a reflective display screen;

110. a top substrate; 111. a color filter; 112. a top electrode; 1121. a compensation unit;

1122. a transparent material; 120. a filling layer; 121. filling a medium; 130. an array substrate;

131. a substrate base; 132. a thin film transistor; 1321. a gate; 1322. a semiconductor;

1323. a source electrode; 1324. a drain electrode; 133. an insulating layer; 1331. a contact hole;

134. a pixel electrode; 135. and a common electrode.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In order to illustrate the reflective display screen and the electronic device provided by the utility model, the following description is provided with reference to the accompanying drawings and the text description of the embodiments.

Next, a reflective display device 1 in the prior art will be described with reference to fig. 1, where, as shown in fig. 1, the reflective display device 1 includes a first substrate 2 and a second substrate 3, a contact site 5 is opened in a pixel unit, and an OC layer is not provided at the contact site 5, and a pixel electrode layer 4 above the OC layer is directly connected to a bottom metal layer 6, so that the top pixel electrode layer 4 is connected to the bottom metal layer 6, but a height difference H2 between the contact site 5 and the first substrate 2 is inconsistent with a height difference H1 between other positions in the pixel electrode layer 4, and the difference between H1 and H2 is large, so that an abnormality in a display area may be caused due to inconsistent imaging time between the contact site 5 and other positions during display, and the overall display effect may be affected.

Referring to fig. 2-4, a reflective display panel according to an embodiment of the present utility model is described below, as shown in fig. 2-4, the reflective display panel 100 includes a top substrate 110, a filling layer 120 and an array substrate 130, specifically, the filling layer 120 is disposed between the top substrate 110 and the array substrate 130, wherein the top substrate 110 includes a top electrode 112, the filling layer 120 includes a filling medium 121, the array substrate 130 includes a plurality of pixel units disposed adjacently, each pixel unit includes a substrate 131, a thin film transistor 132 and a pixel electrode 134, specifically, the thin film transistor 132 and the pixel electrode 134 are sequentially disposed on the substrate 131, an insulating layer 133 is disposed between the pixel electrode 134 and the thin film transistor 132, further, the insulating layer 133 is provided with a contact hole 1331, the pixel electrode 134 extends along a first direction at the contact hole 1331 until the pixel electrode is electrically connected with the thin film transistor 132, it will be appreciated that the first direction is the direction a in fig. 3, that is, the first direction is a vertically downward direction, where the top electrode 112 is provided with a compensation portion 1121 extending along the first direction at the corresponding contact hole 1331, that is, by providing the compensation portion 1121 such that the distance H3 of the position of the contact hole 1331 corresponding to the top electrode 112 is the same as the distance H4 of the other positions of the top electrode 112 and the pixel electrode 134, by providing the compensation portion 1121 extending in the same direction at the corresponding contact hole 1331 at the top electrode 112, the distance between the top electrode 112 and the pixel electrode 134 is always the same, so that the problem of display asynchronization caused by different distances between the contact hole 1331 and the other positions of the pixel electrode 134 and the top electrode 112 is avoided, and thus the same display effect is maintained throughout the pixel unit of the reflective display screen 100, the overall display effect is improved.

The pattern of the compensation portion 1121 in the projection direction covers the pattern of the contact hole 1331 in the projection direction, that is, the compensation portion 1121 is disposed corresponding to the contact hole 1331 in the first direction such that the distance H3 between the compensation portion 1121 and the contact hole 1331 is the same as the distance H4 between the other positions of the top electrode 112 and the pixel electrode 134.

It should be noted that, in some embodiments, the distance H3 between the position of the contact hole 1331 corresponding to the compensation portion 1121 and the distance H4 between the other positions of the top electrode 112 and the pixel electrode 134 may not be identical, for example, an error of less than 10% may exist between H3 and H4.

According to an embodiment of the present utility model, as shown in fig. 2 to 4, the contact hole 1331 and the compensation portion 1121 have the same longitudinal section pattern, and by setting that the contact hole 1331 and the compensation portion 1121 have the same longitudinal section pattern, the distance H3 of the position of the contact hole 1331 corresponding to the compensation portion 1121 is the same as the distance H4 of the other positions of the top electrode 112 and the pixel electrode 134, so that the distance between the top electrode 112 and the pixel electrode 134 is always the same, and the same display effect is maintained everywhere in the pixel unit of the reflective display screen 100, thereby improving the overall display effect.

In some embodiments, the vertical sections of the compensation portion 1121 and the contact hole 1331 may be different, for example, the vertical section pattern of the compensation portion 1121 is an inverted regular trapezoid, the vertical section pattern of the compensation portion 1121 is an inverted isosceles trapezoid, it is understood that, as long as the distance H3 between the position of the contact hole 1331 corresponding to the compensation portion 1121 and the distance H4 between the other positions of the top electrode 112 and the pixel electrode 134 are the same as much as possible, the vertical sections of the compensation portion 1121 and the contact hole 1331 may be different due to the limitation of the manufacturing process and the like.

According to an embodiment of the present utility model, as shown in fig. 2 and 4, a transparent material 1122 is filled between the compensation part 1121 and the top substrate 110, and it is understood that, since the compensation part 1121 is disposed to extend along the first direction of the top electrode 112, a gap exists between the compensation part 1121 and the top substrate 110, and therefore, in order to enhance the compression resistance, the transparent material 1122 which does not affect the light irradiation or transmission is disposed in the gap region. Preferably, the transparent material 1122 is a photoresist, and in particular, the photoresist may be a photoresist for a TFT array, a photoresist for a touch screen, or the like, and the photoresist is easily obtained and is cheaper.

According to an embodiment of the present utility model, as shown in fig. 2 to 4, a common electrode 135 is further provided in each pixel unit, and a pattern of the pixel electrode 134 in the projection direction covers a pattern of the common electrode 135 in the projection direction, so that the common electrode 135 and the pixel electrode 134 form a storage capacitor.

It should be noted that, in some embodiments, as shown in fig. 4, the common electrode 135 extends along the second direction B and covers the thin film transistor 132 in the projection direction, so as to protect the thin film transistor 132, prevent light from directly irradiating the thin film transistor 132, and further improve the service life of the thin film transistor 132.

According to an embodiment of the present utility model, as shown in fig. 2 to 4, the thin film transistor 132 includes a gate electrode 1321, a semiconductor 1322, a source electrode 1323, and a drain electrode 1324, the drain electrode 1324 and the pixel electrode 134 are electrically connected to each other at a contact hole 1331, further, the reflective display panel 100 further includes a scan line (not shown) and a data line (not shown) which cross each other and define a plurality of pixel units, and in particular, in each pixel unit, the gate electrode 1321 is connected to the scan line, and the source electrode 1323 is connected to the data line.

According to an embodiment of the present utility model, as shown in fig. 4, a color filter 111 is further disposed on the top substrate 110, and the color filter 111 is disposed between the top substrate 110 and the top electrode 112, so that the reflective display 100 can display color by providing the color filter 111 to filter light.

According to one embodiment of the present utility model, as shown in fig. 2 and 4, the filling medium 121 may be one of electronic paste, electronic ink or liquid crystal, for example, when the filling medium 121 is electronic paste or electronic ink, the reflective display 100 is an electronic paper display.

An electronic device 10 according to a second aspect of the present utility model is described below with reference to fig. 5, where as shown in fig. 5, the electronic device 10 includes a reflective display 100, and the reflective display 100 maintains the same display effect throughout the pixel unit of the reflective display 100 by providing the compensation portion 1121 extending in the same direction on the top electrode 112 corresponding to the contact hole 1331, so that the distance between the top electrode 112 and the pixel electrode 134 is always the same, thereby avoiding the problem of display asynchronization caused by different distances between the contact hole 1331 and the pixel electrode 134 and the top electrode 112, and further maintaining the same display effect throughout the pixel unit of the reflective display 100, and improving the overall display effect of the reflective display 100.

The foregoing embodiments of the reflective display and the electronic device provided by the present utility model are not to be construed as limiting the scope of the claims, and those skilled in the art should understand that various modifications and substitutions can be made without departing from the spirit of the utility model, and all modifications and substitutions are within the scope of the claims, i.e. the scope of the claims shall be based on the claims.

The embodiments described above and features of the embodiments herein may be combined with each other without conflict.

Claims (10)

1. The reflection type display screen is characterized by comprising a top substrate, a filling layer and an array substrate, wherein the filling layer is arranged between the top substrate and the array substrate, the top substrate comprises a top electrode, the filling layer comprises a filling medium, the array substrate comprises a plurality of pixel units, each pixel unit comprises a substrate, a thin film transistor and a pixel electrode, an insulating layer is arranged between the pixel electrode and the thin film transistor, the insulating layer is provided with a contact hole, the pixel electrode extends along a first direction at the contact hole until the pixel electrode is electrically connected with the thin film transistor, a compensation part extending along the first direction is arranged at the position corresponding to the contact hole, and the distance between the top electrode and the pixel electrode is the same in the first direction.

2. The reflective display screen of claim 1, wherein the contact hole and the compensation portion have the same longitudinal section pattern.

3. The reflective display screen of claim 1, wherein a transparent material is filled between the compensation portion and the top substrate.

4. A reflective display screen as claimed in claim 3, wherein the transparent material is a photoresist.

5. The reflective display screen of claim 1, wherein a common electrode is further provided in each of the pixel units, and a pattern of the pixel electrode in a projection direction covers a pattern of the common electrode in the projection direction.

6. The reflective display screen of claim 1, wherein the thin film transistor includes a gate electrode, a semiconductor, a source electrode, and a drain electrode, the drain electrode and the pixel electrode being electrically connected to each other at the contact hole.

7. The reflective display screen of claim 1, wherein the top substrate further has a color filter disposed thereon, the color filter disposed between the top substrate and the top electrode.

8. The reflective display screen of claim 1, further comprising scan lines and data lines, the scan lines and data lines intersecting each other to form a plurality of pixel cells.

9. The reflective display screen of claim 1, wherein the fill medium is one of an electronic paste, an electronic ink, or a liquid crystal.

10. An electronic device comprising the reflective display of any one of claims 1-9.