Patent Grant
10930224
This application is a Section 371 National Stage Application of International Application No. PCT/CN2018/117879, filed on Nov. 28, 2018, and claims priority to Chinese Patent Application No. 201810403297.4, filed with the State Intellectual Property Office of China on Apr. 28, 2018, the whole disclosures of which are incorporated herein by reference.
The present disclosure relates to the field of display technology, and particularly to a method of eliminating a black border of a display device, a display device and a detecting device.
In the related art, a display device may include a cover plate and a display panel which are disposed in a stack. The display panel includes a display area and the cover plate may include a light transmissive region and a non-light transmissive region located around the light transmissive region. When the display device is normally displayed, a black border is often viewed at a border of the display area.
Embodiments of the present disclosure provide a method of eliminating a black border of a display device, a display device and a detecting device, which may at least partially eliminate black border in a display device.
The present disclosure provide technical solutions that may solve technical problems.
The present disclosure provides a method of eliminating a black border of a display device, the display device comprising a cover plate and a display panel that are provided in a stack, the cover plate comprising a light transmissive region and a non-light transmissive region located around the light transmissive region and the display panel comprising a display area that is configured to correspond to the light transmissive region such that the display area is visible through the light transmissive region, wherein a size of the display area is greater than a size of the light transmissive region and the display area includes a first sub-display area and a second sub-display area located around the first sub-display area; the method comprising the steps of:
setting pixels of at least one side of the second sub-display area to display the same color as a color of the non-light transmissive area.
In an embodiment, before the pixels of at least one side of the second sub-display area are set to display the same color as a color of the non-light transmissive area, the method further comprises the following steps:
detecting a pixel location in the second sub-display area that corresponds to a boundary of the light transmissive region.
In an embodiment, the detecting a pixel location in the second sub-display area that corresponds to a boundary of the light transmissive region includes:
detecting a first pixel location in the second sub-display area that corresponds to a first boundary of the light transmissive region and a second pixel location in the second sub-display area that corresponds to a second boundary of the light transmissive region, the second boundary being opposite to the first boundary, a direction from the first boundary to the second boundary being a first direction.
In an embodiment, the detecting a first pixel location in the second sub-display area that corresponds to a first boundary of the light transmissive region and a second pixel location in the second sub-display area that corresponds to a second boundary of the light transmissive region includes:
displaying a scanning test line column by column from a side of the display area at the first boundary in the first direction; during the displaying the scanning test line, recording a position corresponding the time when the scanning test line starts to appear in the light transmission area as the first pixel location and recording a position corresponding to the time of disappearance of the scanning test line in the light transmission area as the second pixel location.
In an embodiment, the setting pixels of at least one side of the second sub-display area to display the same color as a color of the non-light transmissive area comprises:
determining, according to the first pixel location, the second pixel location, and the resolution of the first sub-display area in the first direction, the number of columns of pixels to be processed of the second sub-display area on the first pixel location side and/or the second pixel location side;
setting the pixels to be processed of the second sub-display area, in the light transmissive region, on the first pixel location side and/or on the second pixel location side to display the same color as the color of the non-light transmissive area.
In an embodiment, the light transmissive region is located at intermediate position of the display area;
the determining, according to the first pixel location, the second pixel location, and the resolution of the first sub-display area in the first direction, the number of columns of pixels to be processed of the second sub-display area on the first pixel location side and/or the second pixel location comprises:
calculating, according to the first pixel location and the second pixel location, a number of the columns of the first pixels to be processed of the second sub-display area, shielded by the non-light transmissive area, on the first pixel location side and/or the second pixel location side, and a number of columns of pixels of second sub-display area corresponding to the light transmissive region in the first direction;
calculating, according to the number of columns of pixels arranged in the first direction and corresponding to the light transmissive region and the resolution of the first sub-display area in the first direction, a number of the columns of the second pixels to be processed of the second sub-display area corresponding to the light transmissive region;
calculating, according to the number of columns of the first pixels to be processed of the second sub-display area on the first pixel location side and the number of columns of the second pixels to be processed, the number of the columns of the pixels to be processed of the second sub-display area on the first pixel location side and/or, according to the number of the columns of the first pixels to be processed of the second sub-display area on the side of the second pixel and the number of the columns of the second pixels to be processed, a number of the columns of the pixels to be processed of the second sub-display area on the second pixel location side.
In an embodiment, the number of the columns of the second pixels to be processed is calculated according to the following formula: C=(m−h)/2;
wherein C is the number of columns of the second pixels to be processed, m is the number of the columns of the pixels covered by the light transmissive region in the first direction, and h is the resolution of the first sub-display area in the first direction.
In an embodiment, the number of columns of the pixels to be processed of the second sub-display area on the first pixel location side is calculated according to the following formula: P1=L1+C; wherein, P1 is the number of the columns of the pixels to be processed of the second sub-display area on the first pixel location side, L1 is the number of the columns of the first pixels to be processed of the second sub-display area on the second pixel location side, and C is the number of columns of the second pixels to be processed; and/or,
calculating, according to the following formula, the number of the columns of the pixels to be processed of the second sub-display area on the second pixel location side: P2=L2+C; wherein P2 is the number of the columns of the pixels to be processed of the second sub-display area on the second pixel location side, L2 is the number of the columns of the first pixels to be processed of the second sub-display area on the second pixel location side, and C is the number of the columns of the second pixels to be processed.
in an embodiment, the detecting a pixel location in the second sub-display area that corresponds to a boundary of the light transmissive region further comprises:
detecting a third pixel location in the second sub-display area that corresponds to a third boundary of the light transmissive region and a fourth pixel in the second sub-display area that corresponds to a fourth boundary of the light transmissive region, the fourth boundary being opposite to the third boundary, a direction from the third boundary to the fourth boundary being a second direction, which is perpendicular to the first direction;
the setting pixels of at least one side of the second sub-display area to display the same color as the non-light transmissive area further comprising: determining, according to the third pixel location, the fourth pixel location, and the resolution of the first sub-display area in the second direction, the number of the columns of the pixels to be processed of the second sub-display area on the third pixel location side and/or the fourth pixel location side;
setting the pixels to be processed of the second sub-display area on the third pixel location side and/or the pixels to be processed of the second sub-display area on the fourth pixel location side to display the same color as the color of the non-light transmissive region.
The present disclosure provides a display device comprising: a cover plate and a display panel, which are configured in a stack; the cover plate comprises: a light transmissive region and a non-light transmissive region located around the light transmissive region; the display panel comprises a display area that is configured to correspond to the light transmissive region such that the display area is visible through the light transmissive region, wherein a size of the display area is greater than a size of the light transmissive region and the display area includes a first sub-display area and a second sub-display area located around the first sub-display area, pixels of at least one side of the second sub-display area are configured to display the same color as a color of the non-light transmissive area.
In an embodiment, the display panel further comprises a peripheral area provided with a black matrix, the peripheral area being located at a periphery of the second sub-display area.
The present disclosure further provides a detecting device, which is used in the display device and implements the above mentioned method, wherein the detecting device comprises an image collector, a signal generator and a controller,
the signal generator is configured to load a test signal to the display device to cause the display device to display a scanning test line column by column in the first direction from a side of the display area at the first boundary;
the image collector is configured to record, during displaying the scanning test line, a first image information at the time when the scanning test line begins to appear in the light transmissive region, and a second image information at the time the scanning test line disappears;
the controller is configured to be connected to the image collector, configured to determine, according to the first image information, the first pixel location corresponding to the occurrence of the scanning test line, and configured, according to the second image information, to determine the second pixel location corresponding to disappearing of the scanning test line.
In an embodiment, the controller is further configured to write the first pixel location and the second pixel location to the display device to cause the display device to determine the second sub-display area and the first sub-display area according to the first pixel location and the second pixel location respectively.
The technical solutions in the present disclosure will be clearly and completely described in conjunction with the drawings in the present disclosure. It is obvious that the described embodiments are a part of the embodiments of the present disclosure, but not all of the embodiments. All other embodiments that are obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope fall into the scope of the disclosure.
The inventors have found that, in the related art, as shown in
In order to prevent the light transmissive region 11 of the cover plate 1 from covering a pixel in the display area 21 of the display panel 2, a size of the light transmissive region 11 is generally set to be greater than a size of the display area 21. However, with the setting, as shown in
The present disclosure provides a method of eliminating a black border displayed in a display device. As shown in
The method of eliminating the black border displayed in the display device includes the following steps:
making pixels of the second sub-display area 212 on at least one side display a same color as the color of the non-light transmissive area 12. Specifically, as shown in
The non-light transmissive area 12 of the cover plate 1 is typically coated with ink, and the pixels of at least one side of the second sub-display area 212 display the same color as that of the ink.
According to the method of eliminating the black border of the display device provided by the present disclosure, the size of the display area 21 of the display panel 2 is greater than the size of the light transmissive region 11 of the cover plate 1, wherein the display area 21 includes a first sub-display area 211 in the middle of the display panel 2 and a second sub-display area 212 located around the first sub-display area 211 such that the pixels of at least one side of the second sub-display area 212 display the same color as that of the non-light transmissive area 12 of the cover plate 1. With the configuration, the size of the first sub-display area 211 is less than the size of the light transmissive region 11, and thus the pixels located at the boundary of the display area 21 (i.e., the pixels of the second sub-display area 212) may shield the block matrix between the peripheral area 22 and the first sub-display area 211 such that the black border displayed in the display device is eliminated and the display effect is improved.
In one embodiment, before the making pixels of the second sub-display area 212 on at least one side display the same color as that of the non-light transmissive area 12, the method of eliminating the black border of the display device according to an embodiment of the present disclosure further includes the following steps:
detecting positions of the pixels, corresponding to a boundary of the light transmissive region 11, in the second sub-display area 212, wherein the boundary of the light transmissive region 11 is a boundary corresponding to the pixels.
As shown in
Hereinafter, a method of eliminating the black border of the display device provided by the present disclosure will be described in detail with reference to
As shown in
detecting a first pixel location i, corresponding to a first boundary 111 of the light transmissive region 11, and a second pixel location j, corresponding to a second boundary 112 of the light transmissive region 11, in the second sub-display area 212. The second boundary 112 is opposite to the first boundary 111 and a direction from the first boundary 111 to the second boundary 112 is the first direction. In the present disclosure, the first boundary 111 is a left boundary of the light transmissive region 11, and the second boundary 112 is the right boundary of the light transmissive region 11.
Specifically, as shown in
Since the size of the display area 21 is greater than the size of the light transmissive region 11, when the scanning test line 3 is displayed column by column from the left side of the display area 21, the scanning test line 3 will not be viewed although it has been lit because it is in the left edge area of the display area 21 and is shielded by the non-light transmissive area 12. Once the scanning test line 3 located at the right side of the first boundary 111 is lit or illuminated, it can be viewed because the illuminated scanning test line 3 is now in the range of the light transmissive region 11. That is, the scanning test line 3 can be lit and viewed within a range corresponding to the area (i.e., the light transmissive region 11) between the first boundary 111 and the second boundary 112 of the display area 21, and, once the scanning test line 3 located on the right side of the second boundary 112 is lit, the scanning test line 3 in the range of the display area 21 disappears.
In the process of displaying the scanning test line 3, the first pixel location i corresponding to the time when the scanning test line 3 starts to appear in the light transmissive region 11 and the second pixel location j corresponding to the time when the scanning test line 3 disappears in the light transmissive region 11 are recorded. The first pixel location i is the pixel location corresponding to the first boundary 111 of the light transmissive region 11, and the second pixel location j is the pixel location corresponding to the second boundary 112 of the light transmissive region 11.
In the present disclosure, the pixel location refers to the number of the column of pixels in the display panel 2, for example, the first pixel location i may be represented as the 100th column of pixels of the display panel 2, and the second pixel location j may be represented as the 1000th column of pixels of the display panel 2.
The step of making pixels of at least one side of the second sub-display area 212 display a same color as that of the ink on the non-light transmissive area 12 specifically includes the following steps:
a step 111 of determining, according to the first pixel location i, the second pixel location j, and a resolution of the first sub-display area 211 in the first direction, the number of columns of pixels to be processed that is at the first pixel location i side of the second sub-display area 212 and/or the number of columns of pixels to be processed that is at the second pixel location j side of the second sub-display area 212.
Specifically, as shown in
The specific implementation of step 111 will be described in detail below with reference to
The step of making further includes a step 112, causing the pixels to be processed of the second sub-display area 212 on the first pixel location i side and/or the pixels to be processed of the second sub-display area 212 on the second pixel location j side to display a same color as the color of the non-light transmissive area 12.
Specifically, as shown in
It should be noted that, as the first pixels to be processed of the second sub-display area 212 at the first pixel location i side and the first pixels to be processed of the second sub-display area 212 at the second pixel location j side are shielded by the non-light transmissive area 12, each of the number of the columns of pixels to be processed of the second sub-display area 212 at the first pixel location i side and located in the light transmissive region, and the number of the columns of pixels to be processed of the second sub-display area 212 at the second pixel location j side and located in the light transmissive region may be C. That is, only the C columns of second to-be-processed pixels, on the first pixel location i side and in the transmissive area, of the second sub-display area 212 and/or the C columns of second to-be-processed pixels, on the second pixel location j side and in the transmissive area, of the second sub-display area 212 may display the same color as that of the non-light transmissive region.
As shown in
a step 1111 of calculating, according to the first pixel location i and the second pixel location j, the number L1 of columns of the first pixels to be processed, on the first pixel location i side, of the second sub-display area 212 that are blocked by the non-light transmissive area 12, and/or the number L2 of columns of the first pixels to be processed, on the second sub-pixel location j side, of the second sub-display area 212 that are blocked by the non-light transmissive area 12, and the corresponding number m of columns of pixels of the display area 21 in the light transmissive area 11 in the first direction.
Specifically, as shown in
The above determining further includes a step 1112: calculating the number C of columns of the second pixels to be processed, according to the corresponding number m of columns of the pixels of the light transmissive region 11 in the first direction and the resolution of the first sub-display area 211 in the first direction.
Specifically, as shown in
Specifically, the number C of columns of the second pixels to be processed can be calculated according to the following formula (1):
C=(m−h)/2; (1)
where m is the corresponding number of columns of pixels of the light transmissive region 11 in the first direction, and h is a resolution of the first sub-display area 211 in the first direction. A resolution of the first sub-display area 211 is h×v, where h is the number of columns of pixels of the first sub-display area 211 in the first direction (i.e., the horizontal direction), and v is the number of rows of pixels of the first sub-display area 211 in the second direction (i.e., the vertical direction). Generally, for a Full High Definition (FHD) display panel, its resolution is usually 1080×1920, that is, there are 1080 columns of pixels in the first direction, and the pixels herein refer to R, G, B, W pixels, etc. It should be noted that the display panel 2 may also be a High Definition (HD) panel, a widescreen HD (2K resolution, WQHD) panel, a Quad Full High Definition (QFHD, 4K resolution,) panel, or the like.
The above determining further includes a step 1113 of calculating, according to the number L1 of columns of the first pixels to be processed and the number C of columns of the second pixels to be processed of the second sub-display area 212 on the first pixel location i side, a number P1 of columns of pixels to be processed of the second sub-display area 212 on the first pixel location i side, and/or, according to the number L2 of columns of the first pixels to be processed and the number C of columns of the second pixels to be processed of the second sub-display area 212 on the second pixel location j side, the number P2 of columns of pixels to be processed of the second sub-display area 212 on the second pixel location j side.
Specifically, as shown in
P1=L1+C; (2)
where P1 is the number of columns of the pixels to be processed of the second sub-display area 212 on the first pixel location i side, L1 is the number of columns of the first pixels to be processed of the second sub-display area 212 on the first pixel location i side, and C is the number of columns of the second pixels to be processed.
The number of columns of the pixels to be processed of the second sub-display area 212 on the second pixel location j side can be calculated according to the following formula (3):
P2=L2+C (3)
where P2 is the number of columns of the pixels to be processed of the second sub-display area 212 on the second pixel location j side, L2 is the number of columns of the first pixels to be processed of the second sub-display area 212 on the second pixel location j side, and C is the number of columns of the second pixels to be processed.
It should be noted that, not only the black border in the first direction of the display device, but also the black border in the second direction of the display device can be eliminated, that is, the black edges in a periphery of the display device can be eliminated, so that the display device can be further improved in terms of eliminating the black border.
Therefore, the step of detecting the pixel location, corresponding to the boundary of the light transmissive region 11, in the second sub-display area 212 further includes the following steps:
detecting a third pixel location, corresponding to the third boundary of the light transmissive region 11, in the second sub-display area 212 and a fourth pixel location, corresponding to the fourth boundary of the light transmissive region 11, in the second sub-display area 212, wherein the fourth boundary is opposite to the third boundary, and a direction from the third boundary to the fourth boundary is the second direction that is perpendicular to the first direction.
In the embodiments of the present disclosure, the third boundary is an upper boundary of the light transmissive region 11, and the fourth boundary is a lower boundary of the light transmissive region 11.
It should be noted that the process of detecting the third pixel location and the fourth pixel location is same as the process of detecting the first pixel location i and the second pixel location j, and thus will not be described repeatedly herein again.
Correspondingly, after the detecting the third pixel location and the fourth pixel location, the step of causing the pixels of at least one side of the second sub-display area 212 to display the same color as that of the non-light transmissive area 12 further includes the following steps:
a step 111′ of determining, according to the third pixel location, the fourth pixel location, and the resolution of the first sub-display area 211 in the second direction, the number of columns of pixels to be processed of the second sub-display area 212 on the third pixel location side and/or the fourth pixel location side.
It should be noted that, the implementation process of determining the number of columns of the pixels to be processed of the second sub-display area 212 on the third pixel location side and/or the fourth pixel location side is the same as the process of determining the number of columns of the pixels to be processed of the second sub-display area 212 on the first pixel location i side and/or the second pixel location j side, and thus will not be described repeatedly herein again.
The above step of causing further includes a step 112′ of causing the pixels to be processed of the second sub-display area 212 on the third pixel location side and/or on the fourth pixel location side to display a same color as that of the non-light transmissive region 12 is further included.
The present disclosure also provides a display device. As shown in
The display device provided by the present disclosure includes a cover plate 1 and a display panel 2 which are arranged in a stack. The size of the display area 21 of the display panel 2 is greater than the size of the light transmissive region 11 of the cover plate 1, wherein the display area 21 includes a first sub-display area 211 located at an intermediate position of the display panel 2 and a second sub-display area 212 located around the first sub-display area 211. The size of the first sub-display area 211 is smaller than the size of the transparent area 11, the pixels of at least one side of the second sub-display area 212 display the same color as that of the non-light transmissive area 12 of the cover plate 1. The pixels at the boundary of the display area 21 (i.e., the pixels of the second sub-display area 212) block the black matrix located between a peripheral area 22 and the first sub-display area 211, thereby eliminating the black border of the display screen and improving the display effect.
In an embodiment, as shown in
In an embodiment, the display panel 2 may include an LCD panel or an OLED panel.
The display device of the present disclosure may be any product or component having a display function such as a television, a display, a digital photo frame, a mobile phone, a smart watch, a tablet computer, a virtual device, and the like.
The present disclosure also provides a detecting device in which the method of eliminating the black border of the display device as described above is applied and which may be used in the display device. As shown in
The image collector 81 is configured to record a first image information at the time when the scanning test line starts to appear in the light transmissive region 11 and a second image information at the time when the scanning test line disappears during the scanning process.
In an embodiment, the image collector 81 may be an image collector device, such as a camera.
The controller 83 is configured to be connected to the image collector 81 for determining, according to the first image information, a first pixel location i corresponding to the time when the scanning test line appears and determining, according to the second image information, a second pixel location j corresponding to the time when the scanning test line disappears. The controller 83 may be a control circuit.
In one embodiment, the controller 83 is further configured to write the first pixel location i and the second pixel location j to the display device such that the display device determines the second sub-display area 212 and the first sub-display area 211 based on the first pixel location i and the second pixel location j.
The technical solution for eliminating the black border of the display device according to the present disclosure is provided to shield the second sub-display area 212 of the display area 21 as an extended display area to eliminate the black border of the display device, thereby improving the display effect and the user experience of the terminal device. Further the solution of the present disclosure can be applied to almost all types of display panels and their terminal devices.
It is to be understood that the above embodiments are merely exemplary embodiments employed to explain the principles of the present disclosure, but the present disclosure is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and scope of the disclosure, and such modifications and improvements are also considered as falling within the scope of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201810403297.4 | Apr 2018 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2018/117879 | 11/28/2018 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2019/205620 | 10/31/2019 | WO | A |
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| 20200294456 A1 | Sep 2020 | US |
