CN110176216B

CN110176216B - Display device and electronic apparatus

Info

Publication number: CN110176216B
Application number: CN201910457345.2A
Authority: CN
Inventors: 李威龙; 宋艳芹; 张露; 吴剑龙; 胡思明; 韩珍珍; 朱晖
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-11-17
Anticipated expiration: 2039-05-29
Also published as: CN110176216A

Abstract

The invention provides a display device and an electronic apparatus. The display device includes: the liquid crystal display device includes a substrate, a plurality of scan lines, and a plurality of pixel circuits, the plurality of pixel circuits including: and a plurality of columns of pixels and a grid electrode drive GIP circuit. The plurality of scan lines are arranged on the substrate along a first direction. The GIP circuit supplies a gate signal to a plurality of scan lines. Each pixel connects two scan lines. The pixel driving circuit comprises at least one pixel, wherein one scanning line connected with the pixel is respectively connected with a reset end of the pixel and a write-in end of at least one pixel which is adjacent to the pixel and is in the same row, and the other scanning line connected with the pixel is respectively connected with a write-in end of the pixel and a reset end of at least one pixel which is adjacent to the pixel and is in the same row and the adjacent row. Therefore, under the scene of high refreshing frequency, the display quality is improved.

Description

Display device and electronic apparatus

Technical Field

The present invention relates to the field of display technologies, and in particular, to a display device and an electronic apparatus.

Background

An Organic Light Emitting Diode (OLED) display device has advantages of being light and thin, emitting light actively, fast in response speed, large in viewing angle, wide in color gamut, high in brightness, low in power consumption, and the like, and is gradually becoming a display technology having development after a liquid crystal display device. At present, a display device with a high refresh rate of 120Hz has a better display effect of dynamic image definition than that of a display device with a refresh rate of 60Hz due to the smoothness of display, and has gradually become a trend of display devices in the market.

A Demultiplexer (DEMUX) is used to decompose one signal channel into a plurality of signal channels, and is widely used in display devices. In the display device, when the load (RC) at both sides of the display panel is greater than the load at the middle of the display panel, there will be a charging difference of the display panel. On the one hand, the DEMUX circuit (for example, 1 input to 2 outputs) has a feed through effect due to its own, so that the charging difference is more obvious, and the display is more uneven in a scene with a high refresh frequency. On the other hand, the pixel circuits corresponding to the output ends of the Demux circuit are arranged in a staggered rule, so that charging difference is caused, and under the scene of high refresh frequency, the charging difference is more obvious, and the display is more uneven.

Disclosure of Invention

The invention provides a display device and electronic equipment, and aims to solve the problem that the existing display device is uneven in display under the scene of high refresh frequency due to uneven charging.

In a first aspect, the present invention provides a display device comprising: a substrate, a plurality of scan lines, and a plurality of pixel circuits, the plurality of pixel circuits comprising: and a plurality of columns of pixels and a grid electrode drive GIP circuit.

The plurality of scanning lines are arranged on the substrate along a first direction; the GIP circuit supplies a gate signal to the plurality of scan lines. Each pixel connects two scan lines.

There is at least one pixel, one of the scanning lines connected with the pixel is respectively connected with the reset end of the pixel and the write-in end of a pixel adjacent to the pixel in the same row, and the other scanning line connected with the pixel is respectively connected with the write-in end of the pixel and the reset end of a pixel adjacent to the pixel in the same row and the same column.

Optionally, when the number M of columns of the pixels in the columns is an even number, the pixels in the columns include M/2 groups, each group includes two adjacent columns of pixels, and the same pixel does not exist in each group.

Aiming at any pixel in any group, one scanning line connected with the pixel is respectively connected with the reset end of the pixel and the write-in end of one pixel in the group, wherein the pixel is adjacent to the pixel and is in the same row, and the other scanning line connected with the pixel is respectively connected with the write-in end of the pixel and the reset end of one pixel in the group, wherein the pixel is adjacent to the pixel and is in the same row.

Optionally, when the number M of columns of the pixels in the plurality of columns is an odd number, the pixels in the plurality of columns include (M +1)/2 groups, the group (M +1)/2-1) includes two adjacent columns of pixels, the same pixel does not exist in each group, and the pixels in one column in the remaining group and the pixels in any column in any group in the group (M +1)/2-1) are respectively connected to the two scan lines in the same manner.

Aiming at any one pixel in any group containing two adjacent columns of pixels, one scanning line connected with the pixel is respectively connected with the reset end of the pixel and the writing end of one pixel adjacent to the pixel in the group and in the same row, and the other scanning line connected with the pixel is respectively connected with the writing end of the pixel and the reset end of one pixel adjacent to the pixel in the group and in the same row.

Optionally, the raster region corresponding to the B pixel is located in an area where any column of pixels in each group is located.

Optionally, the grating region corresponding to the R pixel, the grating region corresponding to the G pixel, and the grating region corresponding to the B pixel are sequentially located in the area where each column of pixels is located.

Optionally, the GIP circuit is one or more.

Optionally, the display device further comprises: a plurality of data lines arranged on the substrate along a second direction; the plurality of pixel circuits further includes: a source driving Integrated Circuit (IC) supplying data signals to the plurality of data lines.

Optionally, the data lines connecting two adjacent columns of pixels in each group are the same.

Optionally, the second direction is perpendicular to the first direction.

In a second aspect, the present invention provides an electronic device comprising: the display device according to the first aspect and the possible embodiments of the first aspect described above.

Among them, the electronic devices mentioned in the present invention may include, but are not limited to, a mobile phone, a Personal Digital Assistant (PDA), a digital camera, a computer screen, a television, or a display device with a high resolution color screen widely used for a notebook computer screen.

The beneficial effects of the electronic device provided in the second aspect and the possible designs of the second aspect may refer to the beneficial effects brought by the possible embodiments of the first aspect and the first aspect, and are not described herein again.

In the display device and the electronic apparatus provided by the invention, the GIP circuit can supply the gate signals to the plurality of scanning lines by arranging the plurality of scanning lines on the substrate along the first direction, the gate signals are used for the plurality of columns of pixels to realize a data writing function and a resetting function, and each pixel is connected with two scanning lines. And at least one pixel is provided, one of the scanning lines connected with the pixel is respectively connected with the reset end of the pixel and the write-in end of a pixel adjacent to the pixel in the row and the same row, and the other scanning line connected with the pixel is respectively connected with the write-in end of the pixel and the reset end of a pixel adjacent to the pixel in the row and the same row. In the invention, the same scanning line is respectively connected with different ends (namely, a writing end or a resetting end) of at least two adjacent pixels in the same row, so that the at least two adjacent pixels in the same row can realize a data writing function and a resetting function, the design of the DEMUX circuit is replaced, the defects brought by the DEMUX circuit are eliminated, the display quality of high refreshing frequency is improved, the spatial layout of the DEMUX circuit is not required, the narrow frame of the display device is facilitated, the display uniformity is improved, and the display effect is effectively improved.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings needed to be used in the description of the embodiments or the prior art, and obviously, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a display device according to the present invention;

FIG. 2 is a schematic diagram of a partial structure of a pixel in a display device according to the present invention;

FIG. 3 is a schematic diagram of a partial structure of a pixel in a display device according to the present invention;

fig. 4 is a schematic structural diagram of an electronic device provided in the present invention.

Description of reference numerals:

pixel A, B, C, D, E, F, G, H, I;

SCAN lines-SCAN 1 and SCAN 2;

DATA lines — DATA1, DATA2, and DATA 3;

a display device-10;

WRITE-WRITE;

RESET terminal-RESET.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

In addition, the terms "first," "second," "third," "fourth," and the like (if any) are used herein to distinguish one element from another, and are not necessarily used to describe a particular order or sequence. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

The embodiment provides a display device and electronic equipment, can realize on the basis that does not increase the scanning line total number, replace the design of current DEMUX circuit, save the drawback that DEMUX circuit self brought, promoted the display quality of high refresh frequency, still reduced spatial layout, be favorable to narrowing the frame, improved simultaneously and shown the uniformity ability, effectively improved the display effect.

Next, a detailed description will be given of a specific structure of the display device provided in this embodiment, using a specific embodiment.

Fig. 1 is a schematic structural diagram of a display device according to the present invention. As shown in fig. 1, the display device of the present embodiment may include: a substrate (not shown in fig. 1), a plurality of scan lines, and a plurality of pixel circuits (not shown in fig. 1). The plurality of pixel circuits includes: columns of pixels and gate drive circuitry (not shown in fig. 1). Each pixel may include an OLED, a capacitor, a driving element, a switching element, and the like, which is not limited in this embodiment.

For ease of illustration, the two SCAN lines in fig. 1 are identified by the letters SCAN1 and SCAN2, and the columns of pixels are illustrated by three adjacent columns of pixels, each column including three pixels, wherein the nine pixels are illustrated by the letters A, B, C, D, E, F, G, H, I.

Among them, the display device often adopts a gate panel (GIP) technology, i.e., a gate driving circuit is directly integrated in a substrate, and the gate driving circuit becomes a GIP circuit. In general, a display device is generally provided with a peripheral region at the outer side of a pixel so as to arrange a GIP circuit in the peripheral region.

In this embodiment, there may be one or more GIP circuits in this embodiment, which is not limited in this embodiment. And the GIP circuit supplies a gate signal to the plurality of scan lines. The strobe signal is used to implement a data write function or a reset function. When there is one GIP circuit, the GIP circuit may supply a gate signal to all scan lines. When the GIP circuits are plural, each GIP circuit supplies a gate signal to a corresponding scan line. For example, the number of GIP circuits is the same as the number of rows of pixels, and each GIP circuit may supply a gate signal to two scan lines.

In this embodiment, the plurality of scan lines are arranged on the substrate along a first direction. The first direction may be a horizontal direction, a vertical direction, or other directions, which is not limited in this embodiment. For convenience of explanation, in fig. 1, the first direction is illustrated by taking a horizontal direction as an example.

In this embodiment, each pixel is connected to two scan lines. For any one pixel, one scan line is used to connect a write terminal of the pixel, the write terminal is used to implement a data write function, and the other scan line is used to connect a reset terminal of the pixel, and the reset terminal is used to implement a reset function. For ease of illustration, the WRITE end is identified by the letters WRITE and the RESET end is identified by the letters RESET.

The pixels in the multiple columns may be arranged in a matrix form, or may be arranged in a staggered manner, which is not limited in this embodiment.

As shown in fig. 1, for any pixel B, the pixels in the same row and adjacent to the pixel B may be a pixel a adjacent to the left side of the pixel B, a pixel G adjacent to the right side of the pixel B, or pixels a and G adjacent to the left and right sides of the pixel B, which is not limited in this embodiment.

The pixels in the same column as the pixel a and in the adjacent row may be a pixel E located adjacent to the upper side of the pixel a, a pixel F located adjacent to the lower side of the pixel a, or pixels E and F located adjacent to the upper side and the lower side of the pixel a, which is not limited in this embodiment.

The pixels in the same column as the pixel G and in the adjacent row may be a pixel H located above and adjacent to the pixel G, a pixel I located below and adjacent to the pixel G, or H and I located above and below and adjacent to the pixel G, which is not limited in this embodiment.

In the present embodiment, one or more pixels exist, and for convenience of explanation, the pixel B is described as an example.

One of the scanning lines connected to the pixel B is respectively connected to the reset terminal of the pixel B and the write-in terminal of the pixel a, and the other scanning line connected to the pixel B is respectively connected to the write-in terminal of the pixel B and the reset terminal of one of the pixels E and F.

Or one of the scan lines connected to the pixel B is connected to the reset terminal of the pixel B and the write-in terminal of the pixel G, and the other scan line connected to the pixel B is connected to the write-in terminal of the pixel B and the reset terminal of one of the pixels H and I.

It should be noted that, according to the present embodiment, the connection between the pixels and the scan lines may be implemented in any one of the above manners according to the scan direction or the actual situation.

In a conventional display device, a DEMUX circuit is generally used. In this embodiment, different ends (i.e., the write end or the reset end) of at least two pixels in adjacent columns and in the same row are connected to the same scan line, so that the data write function and the reset function of the at least two pixels can be staggered in time, and the design of the DEMUX circuit is replaced on the basis of not increasing the number of scan lines, so that the data write function and the reset function can be realized.

The display device provided by the present embodiment can supply the gate signal for the plurality of columns of pixels, each of which connects two scan lines, to the plurality of scan lines by arranging the plurality of scan lines on the substrate along the first direction, the gate signal implementing the data writing function and the reset function. And at least one pixel is provided, one scanning line connected with the pixel is respectively connected with the reset end of the pixel and the write-in end of at least one pixel which is adjacent to the pixel and in the same row, and the other scanning line connected with the pixel is respectively connected with the write-in end of the pixel and the reset end of at least one pixel which is adjacent to the pixel and in the same row. In this embodiment, the same scan line is connected with different ends (i.e., a write end or a reset end) of at least two adjacent rows of pixels in the same row, so that the at least two adjacent rows of pixels in the same row can realize a data write function and a reset function, and the design of the DEMUX circuit is replaced, thereby eliminating disadvantages caused by the DEMUX circuit, improving the display quality of high refresh rate, and not requiring spatial layout of the DEMUX circuit, which is beneficial to narrow frame of the display device, improving the display uniformity, and effectively improving the display effect.

On the basis of the above embodiments, the connection manner of each pixel and the scan line in the display device of the present embodiment can be sampled in the above manner. Next, with reference to fig. 2 and fig. 3, a specific implementation manner of two scan lines connected to each pixel in the display device provided in this embodiment is described in the case that the number M of columns of the multiple columns of pixels is an even number and an odd number.

When the number M of the rows of the pixels in the multiple rows is an even number, in this embodiment, the pixels in the multiple rows may be grouped into M/2 groups, where each group includes two adjacent rows of pixels, and there is no same pixel in each group.

For example, M is 6, 6 columns of pixels are divided into 3 groups, a first column of pixels and a second column of pixels are grouped, a third column of pixels and a fourth column of pixels are grouped, and a fifth column of pixels and a sixth column of pixels are grouped.

In this embodiment, for any one pixel in any group, for convenience of description, a group of pixels is illustrated in fig. 2, a pixel B is illustrated as a pixel in a column adjacent to the pixel a in the group, a pixel C and a pixel D (not shown in fig. 2) are illustrated as a pixel in a column adjacent to the pixel B in the group, and the pixel a and the pixel B are arranged in a staggered manner.

Furthermore, one of the scan lines connected to the pixel a is connected to the reset terminal of the pixel a and the write terminal of the pixel B, respectively, and the other scan line connected to the pixel a is connected to the write terminal of the pixel a and the reset terminal of the pixel C, respectively. This connection is schematically illustrated in fig. 2 for ease of illustration.

Or one of the scan lines connected to the pixel a is connected to the reset terminal of the pixel a and the write-in terminal of the pixel B, respectively, and the other scan line connected to the pixel a is connected to the write-in terminal of the pixel a and the reset terminal of the pixel D, respectively.

It should be noted that, the connection mode between the two columns of pixels in each group and the scan line may be any one of the above modes according to the scan direction or the actual situation.

When the number M of the columns of pixels is an odd number, in this embodiment, the columns of pixels may be grouped into (M +1)/2 groups. In the ((M +1)/2-1) groups, each group includes groups of two adjacent columns of pixels, and the same pixel does not exist in each group. In the remaining group, a column of pixels in the remaining group and a column of pixels in any one of the (M +1)/2-1) groups are connected to two scan lines in the same manner.

The pixels in the remaining group may be any one of multiple columns of pixels, and the grouping manner of the multiple columns of pixels is not limited in this embodiment.

For example, M is 5, 5 columns of pixels are divided into 3 groups, a first column of pixels and a second column of pixels are grouped, a third column of pixels and a fourth column of pixels are grouped, and a fifth column of pixels is grouped.

In this embodiment, for any one pixel in any one group including two adjacent columns of pixels, for convenience of description, referring to fig. 3, two groups of pixels are taken as an example, where the pixel in the adjacent column and the same row of the pixel a in one group is taken as an example of the pixel B, the pixel in the same column and the adjacent row of the group as the pixel B is taken as an example of the pixel C and the pixel D (not shown in fig. 3), and the pixel E in the adjacent column and the same row as the pixel B in the other group is taken as an example of the pixel E, and the pixel a and the pixel B are arranged in a staggered manner.

Furthermore, one of the scan lines connected to the pixel a is connected to the reset terminal of the pixel a and the write terminal of the pixel B, respectively, and the other scan line connected to the pixel a is connected to the write terminal of the pixel a and the reset terminal of the pixel C, respectively. This connection is schematically illustrated in fig. 3 for ease of illustration.

In addition, with reference to fig. 3, for any one pixel in the remaining group, the writing terminal of the pixel E may be connected to the same scan line as the writing terminal of the pixel a, and the resetting terminal of the pixel E may be connected to the same scan line as the resetting terminal of the pixel a.

Alternatively, the writing terminal of the pixel E may be connected to the same scan line as the writing terminal of the pixel B, and the resetting terminal of the pixel E may be connected to the same scan line as the resetting terminal of the pixel B. This connection is schematically illustrated in fig. 3 for ease of illustration.

It should be noted that, the connection mode between the pixels in each group including two columns of pixels and the scan line may be any one of the above modes according to the scan direction or the actual situation.

On the basis of the above embodiments, the present embodiment may fixedly set the positions of the reset terminal and the write terminal of each pixel, such as the opening direction of the port, to facilitate the wiring and achieve the connection with the scan line.

On the basis of the above embodiment, in this embodiment, the raster region corresponding to the B pixel may be located in the area where any column of pixels in each group is located, that is, the raster region corresponding to the B pixel is fixedly set, so as to achieve the best display effect. For example, the raster region corresponding to the B pixel is fixedly disposed in an odd column or an even column of the plurality of columns of pixels.

Further, in this embodiment, it may be set that the grating region corresponding to the R pixel, the grating region corresponding to the G pixel, and the grating region corresponding to the B pixel are sequentially located in the region where each row of pixels is located, that is, the grating region corresponding to the R pixel, the grating region corresponding to the G pixel, and the grating region corresponding to the B pixel are fixedly set in sequence according to the order of the R pixel, the G pixel, and the B pixel, so as to achieve the best display effect. In addition, the order may be replaced by the order of the R pixel, the B pixel, and the G pixel, the order of the B pixel, the R pixel, and the G pixel, and the order of the G pixel, the B pixel, and the R pixel, which is not limited in this embodiment.

On the basis of the foregoing embodiments, with continuing to combine fig. 1 to fig. 3, the display device of the present embodiment may further include: a plurality of data lines. The plurality of pixel circuits further includes: the source driver integrated circuit IC (not shown in fig. 1). For ease of illustration, the DATA lines in FIG. 1 are identified with the letters DATA1, DATA2, and DATA 3.

In this embodiment, the plurality of data lines are arranged on the substrate along a second direction. The second direction may be a horizontal direction, a vertical direction, or other directions, which is not limited in this embodiment. Typically, the first direction and the second direction are perpendicular to each other. For example, when the first direction is a horizontal direction, the second direction is a vertical direction. When the first direction is a vertical direction, the second direction is a horizontal direction. For convenience of explanation, the second direction is illustrated as a vertical direction in fig. 1.

In this embodiment, the source driver IC supplies data signals to the plurality of data lines, and the data signals are used for the pixels to realize a display function.

In this embodiment, the manner of connecting each column of pixels to the data line is not limited.

Alternatively, the data lines connecting two adjacent columns of pixels in each group may be the same, so that the function of the DEMUX circuit to split one data line into two data lines in the conventional display device is replaced, and signals can be transmitted to the pixels in each group by using one data.

For example, when a column of pixels connected with DATA1 is the same group as a column of pixels connected with DATA2, DATA1 and DATA2 may be the same DATA line. When a column of pixels connected with DATA2 is the same group as a column of pixels connected with DATA3, DATA2 and DATA3 may be the same DATA line.

Alternatively, the data lines to which the pixels of each column are connected may be the same.

For example, on the basis of the display device described in fig. 1 to fig. 3, the present embodiment further provides an electronic device. Fig. 4 is a schematic structural diagram of an electronic device provided in the present invention. As shown in fig. 4, the electronic device of the present embodiment may include: such as the display device 10 shown above.

The structure of the display device 10 can be referred to the description in the above embodiments, and is not repeated herein.

The electronic device mentioned in this embodiment may include, but is not limited to, a mobile phone, a Personal Digital Assistant (PDA), a digital camera, a computer screen, a television, or a display device with a high-resolution color screen widely used in a notebook computer screen.

Claims

1. A display device, comprising: a substrate, a plurality of scan lines, and a plurality of pixel circuits, the plurality of pixel circuits comprising: a plurality of columns of pixels and a gate drive GIP circuit;

the plurality of scanning lines are arranged on the substrate along a first direction; the GIP circuit supplies a gate signal to the plurality of scan lines; each pixel is connected with two scanning lines;

2. The display device according to claim 1, wherein when the number M of columns of the plurality of columns of pixels is an even number, the plurality of columns of pixels includes M/2 groups each including two adjacent columns of pixels, and no identical pixel exists in each group;

3. The display device according to claim 1, wherein when the number M of columns of the plurality of columns of pixels is an odd number, the plurality of columns of pixels include (M +1)/2 groups, the ((M +1)/2-1) group includes two adjacent columns of pixels, no identical pixel exists in each group, and one column of pixels in the remaining group and any column of pixels in any group of the ((M +1)/2-1) group are respectively connected to the two scan lines in the same manner;

4. The display device according to claim 2 or 3, wherein the raster region corresponding to the B pixel is located in an area where any column of pixels in each group is located.

5. The display device according to any one of claims 1 to 3, wherein the raster region corresponding to the R pixel, the raster region corresponding to the G pixel and the raster region corresponding to the B pixel are sequentially located in an area where each column of pixels is located.

6. The display device according to any one of claims 1 to 3, wherein the GIP circuit is one or more.

7. A display device according to claim 2 or 3, characterized in that the display device further comprises: a plurality of data lines arranged on the substrate along a second direction; the plurality of pixel circuits further includes: a source driving integrated circuit IC supplying a data signal to the plurality of data lines.

8. The display device according to claim 7, wherein the data lines connecting two adjacent columns of pixels in each group are the same.

9. The display device according to claim 7, wherein the second direction is perpendicular to the first direction.

10. An electronic device, comprising: a display device as claimed in any one of claims 1-9.