CN111179865A - Display panel and display method - Google Patents
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- CN111179865A CN111179865A CN201811347784.XA CN201811347784A CN111179865A CN 111179865 A CN111179865 A CN 111179865A CN 201811347784 A CN201811347784 A CN 201811347784A CN 111179865 A CN111179865 A CN 111179865A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
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Abstract
The invention relates to a display panel and a display method, wherein the display panel comprises a color filter substrate and a thin film transistor array substrate which are oppositely arranged, and a liquid crystal layer is filled between the color filter substrate and the thin film transistor array substrate; the color filter substrate is provided with a light hole at a position vertically corresponding to the light sensor, and the thin film transistor array substrate is provided with a plurality of sub-pixels. According to the display panel, the plurality of light sensors and the plurality of control switches are arranged on the thin film transistor array substrate, when incident laser irradiates the light sensors, the light sensors and the control switches can be triggered to work, the laser projection position is determined, the gray scale of sub-pixels in the laser irradiation area is changed, and the demonstration effect is improved.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a display panel and a display method.
Background
Laser pointers, also known as laser pens, are pen-shaped emitters that are portable, easy to hold, and made of laser modules (light emitting diodes) designed from visible laser light, and are currently widely used in electronic teaching, presentation, and lectures.
In some application scenarios, liquid crystal display panels such as LEDs (light emitting diodes) and OLEDs (organic light emitting diodes) also need to be used in conjunction with a laser pen to achieve a better demonstration effect. When the laser pen is projected on the display surface of the display panel, a part of incident light is absorbed, and the brightness of the display panel is high, so that a viewer and a user can not see the bright point projected on the display panel by the laser pen clearly or even can not see the bright point, and the demonstration effect is seriously influenced.
In view of this, a display panel is needed, which can be used with a laser pen to achieve a good demonstration effect.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a display panel and a display method. The technical problem to be solved by the invention is realized by the following technical scheme:
one aspect of the present invention provides a display panel, including a color filter substrate and a thin film transistor array substrate, which are disposed opposite to each other, a liquid crystal layer is filled between the color filter substrate and the thin film transistor array substrate,
the thin film transistor array substrate comprises a display area and a non-display area, wherein a plurality of optical sensors are arranged in the display area, and a plurality of control switches are arranged in the non-display area;
a light hole is arranged at the position of the color filter substrate vertically corresponding to the light sensor, wherein,
the thin film transistor array substrate is provided with a plurality of sub-pixels, the control switch is used for stopping loading the public voltage to the sub-pixels in a preset time period, and the optical sensor is used for detecting the position information corresponding to the photoelectric signal when receiving an external photoelectric signal.
In one embodiment of the present invention, the thin film transistor array substrate is provided with a plurality of scan lines, a plurality of data lines, a first common voltage line, a control signal line, and a plurality of second common voltage lines, wherein,
the scanning lines and the second common voltage line are equal in number and are arranged in parallel at intervals;
the control signal line is connected with the control switch and is used for controlling the on and off of the control switch.
In one embodiment of the present invention, the control switch is a TFT element having a gate connected to the control signal line, a source connected to the first common voltage line, and a drain connected to the second common voltage line.
In one embodiment of the present invention, the light sensor is located in a region where the scan line perpendicularly intersects the data line.
In one embodiment of the present invention, the light sensor is a TFT element whose gate and drain are connected to the second common voltage line and whose source is connected to the data line.
In an embodiment of the invention, each of the sub-pixels, the scan line, the data line and the second common voltage line together form a pixel unit, and each of the pixel units is provided with one of the photo sensors.
In one embodiment of the present invention, the display panel further includes a first current detection module and a second current detection module, wherein,
the first current detection module is connected with the light sensor through a second common voltage line and is used for detecting current change in the light sensor along the scanning line direction;
the second current detection module is connected with the optical sensor through the plurality of data lines and is used for detecting current change in the optical sensor along the direction of the data lines.
Another aspect of the present invention provides a display method, including:
s1: stopping loading the common voltage to the sub-pixels in a preset time period;
s2: detecting position information of an external photoelectric signal irradiated on a designated area of the display panel in the preset time period;
s3: and adjusting the display brightness or the display color of the sub-pixels in the designated area according to the position information.
In one embodiment of the present invention, the preset period is a period in which both the scan signal and the data signal are at a low level.
In an embodiment of the present invention, the S2 includes:
s21: the light sensor positioned in the designated area receives the external photoelectric signal and generates a feedback signal;
s22: and determining the position information corresponding to the photoelectric signal according to the feedback signal.
In an embodiment of the present invention, the S3 includes:
judging whether the pixel gray scale of the sub-pixels in the designated area is smaller than a preset gray scale or not, if so, increasing the gray scale of the sub-pixels in the designated area and the gray scale of the adjacent sub-pixels thereof so as to increase the display brightness of the designated area; if not, reducing the gray scale displayed by the sub-pixels in the designated area and the adjacent sub-pixels thereof so as to reduce the display brightness of the designated area.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the display panel, the plurality of light sensors and the plurality of control switches are arranged on the thin film transistor array substrate, when incident laser irradiates on the light sensors, the light sensors and the control switches can be triggered to work, so that the gray scale of sub-pixels in a laser irradiation area is changed, the laser projection position is determined, and the demonstration effect is improved.
2. The display method of the invention carries out the position test of the photoelectric signal between frames, namely when the scanning signal and the control signal are at low level, can well determine the laser projection position, improve the demonstration effect and simultaneously ensure the normal display effect.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a circuit structure diagram of a display panel according to an embodiment of the present invention;
FIG. 3 is a timing diagram of a display panel according to an embodiment of the present invention;
fig. 4 is a circuit structure diagram of another display panel according to an embodiment of the present invention;
fig. 5 is a flowchart of a display method according to an embodiment of the present invention.
The reference numbers are as follows:
a-a display area; b-a non-display area; 1-a color filter substrate; 2-a thin film transistor array substrate; 3-a liquid crystal layer; 4-a light sensor; 5-control switch; 6-color filters; 7-black matrix; 8-light hole; 9-scanning line; 10-a data line; 11-sub-pixels; 12-control signal lines; 13-a second common voltage line; 14-a first common voltage line; 15-pixel cell; 16-a scan driver; 17-data driver.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the display panel and the display device according to the present invention is provided with reference to the accompanying drawings and the detailed description thereof.
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings. The technical means and effects of the present invention adopted to achieve the predetermined purpose can be more deeply and specifically understood through the description of the specific embodiments, however, the attached drawings are provided for reference and description only and are not used for limiting the technical scheme of the present invention.
Example one
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention. As shown in fig. 1, the display panel of the present embodiment includes a color filter substrate 1 and a thin film transistor array substrate 2, which are disposed opposite to each other, and a liquid crystal layer 3 is filled between the color filter substrate 1 and the thin film transistor array substrate 2. The thin film transistor array substrate 1 includes a display region a in which the liquid crystal layer 3 is positioned and a non-display region B. Further, the thin film transistor array substrate 1 includes a display area a and a non-display area B, a plurality of photosensors 4 are disposed in the display area a, and a plurality of control switches 5 are disposed in the non-display area B; the color filter substrate 2 is provided with a light hole 8 at a position vertically corresponding to the light sensor 4. The thin film transistor array substrate 1 is provided with a plurality of sub-pixels 11, the control switch 5 is used for stopping loading the common voltage to the sub-pixels 11 in a preset time period, and the photosensor 4 is used for detecting the position information corresponding to the photoelectric signal when receiving the external photoelectric signal.
Further, the color filter substrate 2 includes color filters 6 and a black matrix 7 arranged alternately. Light-transmitting holes 8 are opened in the color filter 6, the black matrix 7, and the color filter substrate 2 between the color filter 6 and the black matrix 7 at positions corresponding to the photosensors 4 in the vertical direction. As shown in fig. 1, in the present embodiment, a light-transmitting hole 8 is opened on the color filter substrate 2 between the color filter 6 and the black matrix 7, and the photo sensor 4 is located below the light-transmitting hole 8 of the thin film transistor array substrate 1, so that when the display panel is irradiated with laser light from the outside (as indicated by an arrow in fig. 1), the laser light can be smoothly irradiated onto the photo sensor 4 through the light-transmitting hole 8, thereby triggering a current change on the photo sensor 4.
Referring to fig. 2, fig. 2 is a circuit structure diagram of a display panel according to an embodiment of the present invention. As shown in fig. 2, the thin film transistor array substrate 2 is provided with a plurality of scan lines 9 parallel to each other, a plurality of second common voltage lines 13 parallel to the scan lines 9, a plurality of data lines 10 parallel to each other and perpendicular to the scan lines 9, a first common voltage line 14 parallel to the data lines 10, and a plurality of sub-pixels 11 located in an area where the scan lines 9 and the data lines 10 intersect perpendicularly, wherein the plurality of sub-pixels 11 are located in the display area a.
In this embodiment, the plurality of scanning lines 9 and the second common voltage line 13 are arranged in parallel at intervals in equal number.
Specifically, the data line 10 is used for loading a data driving signal to the sub-pixel 11, and the data driving signal controls the sub-pixel 11 to display colors of different gray scales according to the magnitude of the driving voltage; the scan lines 9 are used to load scan driving signals to the sub-pixels 11, and the scan driving signals control whether data driving signals are loaded to the sub-pixels 11. In one embodiment, the data line 10, the scan line 9, the first common voltage line 14, and the second common voltage line 13 are made of a conductive material, and may be a metal, an alloy, a metal oxide, a metal nitride, a metal oxynitride, or a combination of two or more of the foregoing materials.
With continued reference to fig. 2, the photosensor 4 is located in the region where the scan line 9 intersects the data line 10 perpendicularly. In the present embodiment, the photosensor 4 is a TFT element whose gate and drain are connected to the second common voltage line 13, and whose source is connected to the data line 10.
Specifically, each sub-pixel 11 constitutes one pixel unit 15 together with the scanning line 9, the data line 10, and the second common voltage line 13, wherein one photosensor 4 is disposed on each pixel unit 15. Further, a control signal line 12 is further disposed on the thin film transistor array substrate 2, and is connected to the control switch 5 for controlling the on and off of the control switch 5. In the present embodiment, the control switch 5 is a TFT element, and has a source connected to the first common voltage line 14 and a drain connected to the second common voltage line 13.
However, it should be noted that in other embodiments, the optical sensor 4 may have other arrangements, and the optical sensor 4 may be arranged according to actual requirements. Referring to fig. 4, fig. 4 is a circuit structure diagram of another display panel according to an embodiment of the invention. Instead of one photosensor 4 per pixel cell 15, the display panel has photosensors 4 in alternate columns of pixel cells 15. In other embodiments, the display panel may be divided into a plurality of unit areas according to the diameter of an aperture through which incident light is irradiated onto the panel, and one photosensor 4 may be disposed on each unit area or a plurality of photosensors 4 may be uniformly disposed to improve the pixel aperture ratio.
Further, the display panel further comprises a scan driver 16 and a data driver 17, wherein the scan lines 9 are connected to the scan driver 16 for providing scan voltages to the sub-pixels 11, and the data lines 10 are connected to the data driver 17 for providing data voltages to the sub-pixels 11.
Further, a common voltage generating circuit (not shown) for generating a common voltage is integrated on the scan driver 16. The first common voltage line 14 and the second common voltage line 13 are respectively connected to the common voltage generating circuit to supply the common voltage to the sub-pixels 11, the photo sensor 4, and the control switch 5.
Further, the display panel further comprises a first current detection module (not shown) and a second current detection module (not shown), wherein the first current detection module is connected to the light sensor 4 through a second common voltage line 13 for detecting a current change in the light sensor 4 along a scan line direction; the second current detection module is connected to the light sensor 4 through the data lines 9, and is configured to detect a current change in the light sensor 4 along a data line direction.
Further, in the present embodiment, the first current detection module is provided on the scan driver 16, and the first current detection module is connected to the light sensor 4 through the second common voltage line 13, and is configured to detect a current change in the light sensor 4 in the scan line direction, thereby externally detecting the position of laser irradiation in the scan line direction. The second current detection module is disposed on the data driver 17, and the second current detection module is connected to the optical sensor 4 through the data line 10, and is configured to detect a current change in the optical sensor 4 along a data line direction, so as to externally detect a position irradiated by the laser along the data line direction.
In this embodiment, the display device further includes a control module (not shown) connected to the scan driver 16 and the data driver 17, respectively, for sending control signals to the scan driver 16 and the data driver 17 to control the normal display time of each frame and the laser detection time between frames.
Further, in the present embodiment, in order not to affect the display, the control switch 5 is disposed in the non-display region of the display panel, and the gate of the control switch 5 is connected to the control signal line 12, the source is connected to the first common voltage line 14, and the drain is connected to the second common voltage line 13.
In the using process of the display panel, when the display panel is in a normal display mode, the control switch 5 is turned on, the common voltage generated by the common voltage generating circuit is transmitted from the first common voltage line 14 to the corresponding second common voltage line 13 through the control switch 5, and then is transmitted to each sub-pixel 11 through the second common voltage line 13, so that the sub-pixels 11 display normally. At this time, if the laser from the external laser pen is irradiated onto one of the photosensors 4 through the light transmission hole 8, the intensity of the current flowing through the photosensor 4 is increased due to the laser, the control switch 5 is turned off within a preset time, the first current detection module detects the current change on the second common voltage line 13, the second current detection module detects the current change on the data line 9, so as to determine the position irradiated by the laser, and feed back the position information to the control module, and the control module sends a control signal to control the brightness of the sub-pixel 11 and the adjacent sub-pixel at the position to be changed, for example, to be brighter or darker, so as to be different from the adjacent sub-pixel in display, so that the user can observe the position of the laser, and complete the action of laser positioning.
In this embodiment, the display change process of the sub-pixels in the laser irradiation region is as follows: judging whether the pixel gray scale of the sub-pixel of the laser irradiation area is larger than a preset gray scale value, if so, increasing the gray scale of the sub-pixel of the detection area and the adjacent sub-pixel thereof or the pixels in a small area to increase the display brightness of the detection area to form light and shade contrast, for example, displaying 0 gray scale on the sub-pixel of the designated area and the adjacent sub-pixel thereof, namely showing that a white point appears at the position; if not, the gray scale displayed by the sub-pixel in the preset area and the adjacent sub-pixel thereof or the pixel in the small area is reduced to reduce the display brightness of the preset area to form the light and shade contrast, for example, the sub-pixel in the designated area and the adjacent sub-pixel thereof display the gray scale of 225, that is, a black point appears at the position, so that the difference with other areas is displayed in the brightness, and the position irradiated by the laser can be found more easily by human eyes. Alternatively, the detection region sub-pixels and their neighboring sub-pixels may be displayed in red, green or other colors, so that the human eye can find the illumination position more easily.
Referring to fig. 3, fig. 3 is a driving timing diagram of the display panel of the present invention. In the present embodiment, in order not to affect normal display, the photo signal position test is performed between frames, i.e., when the scan signal and the control signal are at low levels. As shown in fig. 3, in the region between frames, the control module transmits a control signal to the control switch 5 through the control signal line to switch the control switch 5 between the normal operation mode and the laser sensing mode. In the case of the normal operation mode, the control signal is in a high voltage state, the control switch 5 is turned on, and the common voltage is transmitted to each sub-pixel through the common voltage line 13; when the blank area of each frame is reached, the control signal is converted into a low voltage state, the control switch 5 is turned off, the laser detection mode is entered at the moment, the current detection circuit detects the current condition on each optical sensor 4, if the current at a certain optical sensor 4 is obviously increased due to laser irradiation, the position information is fed back to the control module, and the control module controls the sub-pixel at the position to change the brightness so as to be distinguished from the adjacent sub-pixel, so that a user can observe the projection position of the laser. In the present embodiment, the position irradiated with laser light can be displayed by increasing the luminance of the sub-pixel at the position irradiated with laser light.
According to the display panel, the plurality of light sensors and the plurality of control switches are arranged on the thin film transistor array substrate, when incident laser irradiates on the light sensors, the light sensors can be triggered to work, so that the laser projection position is determined, the gray scale of sub-pixels in the laser irradiation area is changed, and the demonstration effect is improved.
Example two
In view of the above-described technology of the embodiment, the present embodiment provides a display method. Referring to fig. 5, fig. 5 is a flowchart of a display method according to an embodiment of the invention. The display method of the embodiment comprises the following steps:
s1: stopping loading the common voltage to the sub-pixels in a preset time period;
specifically, in the present embodiment, the preset period is a period in which both the scan signal and the data signal are at a low level. That is, as described above, the photo signal position test is performed between frames, that is, when the scan signal and the control signal are at low levels, in order not to affect normal display.
S2: detecting the position information of an external photoelectric signal irradiated on a designated area in the preset time period;
specifically, S2 includes:
s21: the light sensor positioned in the designated area receives the external photoelectric signal and generates a feedback signal;
s22: and determining the position information corresponding to the photoelectric signal according to the feedback signal.
S3: and adjusting the pixel gray scale of the sub-pixels in the designated area according to the position information.
Judging whether the pixel gray scale of the sub-pixel in the designated area is smaller than a preset gray scale or not, if so, increasing the gray scale of the sub-pixel in the designated area and the gray scale of the adjacent sub-pixel thereof so as to increase the display brightness of the designated area; if not, reducing the gray scale displayed by the sub-pixels and the adjacent sub-pixels in the appointed area so as to reduce the display brightness of the appointed area.
Specifically, whether the pixel gray scale of the sub-pixel in the laser irradiation area is larger than a preset gray scale value or not is judged, if so, the sub-pixel in the designated area and the adjacent sub-pixel thereof display the gray scale of 0, and if not, the sub-pixel in the designated area and the adjacent sub-pixel thereof display the gray scale of 225, so that the difference with other areas is displayed in the brightness, and the laser irradiation position is observed conveniently. Alternatively, the detection region sub-pixels and their neighboring sub-pixels may be displayed in red, green or other colors, so that the human eye can find the illumination position more easily.
In the using process of the display panel, when the display panel is in a normal display mode, the control switch 5 is turned on, the common voltage generated by the common voltage generating circuit is transmitted from the first common voltage line 14 to the corresponding second common voltage line 13 through the control switch 5, and then is transmitted to each sub-pixel 11 through the second common voltage line 13, so that the sub-pixels 11 display normally. At this time, if the laser from the external laser pen is irradiated onto one of the photosensors 4 through the light transmission hole 8, the intensity of the current flowing through the photosensor 4 is increased due to the laser, the control switch 5 is turned off within a preset time, the first current detection module detects the current change on the second common voltage line 13, the second current detection module detects the current change on the data line 9, so as to determine the position irradiated by the laser, and feed back the position information to the control module, and the control module sends a control signal, so that the brightness of the sub-pixel 11 and the adjacent sub-pixel at the position is changed, for example, the brightness is changed to be brighter or darker, so as to be different from that of the adjacent sub-pixel on the display, so that the user can observe the position of the laser, and complete the action of laser positioning.
The display method of the invention carries out the position test of the photoelectric signal between frames, namely when the scanning signal and the control signal are at low level, can well determine the laser projection position, improve the demonstration effect and simultaneously ensure the normal display effect.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (11)
1. A display panel comprises a color filter substrate (1) and a thin film transistor array substrate (2) which are oppositely arranged, a liquid crystal layer (3) is filled between the color filter substrate (1) and the thin film transistor array substrate (2),
the thin film transistor array substrate (1) comprises a display area (A) and a non-display area (B), wherein a plurality of light sensors (4) are arranged in the display area (A), and a plurality of control switches (5) are arranged in the non-display area (B);
a light hole (8) is arranged on the color filter substrate (2) at a position vertically corresponding to the light sensor (4),
the thin film transistor array substrate (1) is provided with a plurality of sub-pixels (11), the control switch (5) is used for stopping loading a common voltage to the sub-pixels (11) in a preset time period, and the optical sensor (4) is used for detecting position information corresponding to an external photoelectric signal when receiving the photoelectric signal.
2. The display panel according to claim 1, wherein a plurality of scanning lines (9), a plurality of data lines (10), a first common voltage line (14), a control signal line (12), and a plurality of second common voltage lines (13) are provided on the thin film transistor array substrate (2),
the scanning lines (9) and the second common voltage lines (13) are equal in number and are arranged in parallel at intervals;
the control signal line (12) is connected with the control switch (5) and is used for controlling the on and off of the control switch (5).
3. A display panel according to claim 2, wherein the control switch (5) is a TFT element having a gate connected to the control signal line (12), a source connected to the first common voltage line (14), and a drain connected to the second common voltage line (13).
4. A display panel as claimed in claim 3 characterized in that the light sensor (4) is located in the area where the scanning lines (9) perpendicularly intersect the data lines (10).
5. A display panel as claimed in claim 4 characterized in that the light sensor (4) is a TFT element with its gate and drain connected to the second common voltage line (13) and its source connected to the data line (10).
6. A display panel as claimed in claim 5, characterized in that each of the sub-pixels (11) together with the scanning lines (9), the data lines (10) and the second common voltage line (13) constitutes a pixel cell (15), wherein one of the light sensors (4) is arranged on each of the pixel cells (15).
7. The display panel according to any one of claims 1 to 6, further comprising a first current detection module and a second current detection module, wherein,
the first current detection module is connected with the light sensor (4) through a second common voltage line (13) and is used for detecting current change in the light sensor (4) along the scanning line direction;
the second current detection module is connected with the light sensor (4) through the plurality of data lines (9) and is used for detecting current change in the light sensor (4) along the direction of the data lines.
8. A display method, comprising:
s1: stopping loading the common voltage to the sub-pixels in a preset time period;
s2: detecting the position information of an external photoelectric signal irradiated on a designated area of the display panel in the preset time period;
s3: and adjusting the display brightness or the display color of the sub-pixels in the designated area according to the position information.
9. The display method according to claim 8, wherein the preset period is a period in which both the scan signal and the data signal are at a low level.
10. The display method according to claim 8, wherein the S2 includes:
s21: the light sensor positioned in the designated area receives the external photoelectric signal and generates a feedback signal;
s22: and determining the position information corresponding to the photoelectric signal according to the feedback signal.
11. The display method according to claim 10, wherein the S3 includes:
judging whether the pixel gray scale of the sub-pixels in the designated area is smaller than a preset gray scale or not, if so, increasing the gray scale of the sub-pixels in the designated area and the gray scale of the adjacent sub-pixels thereof so as to increase the display brightness of the designated area; if not, reducing the gray scale displayed by the sub-pixels in the designated area and the adjacent sub-pixels thereof so as to reduce the display brightness of the designated area.
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| CN201811347784.XA CN111179865B (en) | 2018-11-13 | 2018-11-13 | Display panel and display method |
| US16/430,525 US10832623B2 (en) | 2018-11-13 | 2019-06-04 | Display panel and display method |
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| CN201811347784.XA CN111179865B (en) | 2018-11-13 | 2018-11-13 | Display panel and display method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255830A (en) * | 2020-10-23 | 2021-01-22 | 深圳市华星光电半导体显示技术有限公司 | Laser induction panel, manufacturing method thereof and display device |
| CN113157146A (en) * | 2021-04-19 | 2021-07-23 | 深圳市华星光电半导体显示技术有限公司 | Display panel and photosensitive display device |
| CN113157145A (en) * | 2021-04-19 | 2021-07-23 | 深圳市华星光电半导体显示技术有限公司 | Display panel and photosensitive display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1525223A (en) * | 2003-02-28 | 2004-09-01 | ���ǵ�����ʽ���� | Liquid crystal display panel, liquid crystal display device having the same, and method of manufacturing the same |
| CN1773335A (en) * | 2004-11-08 | 2006-05-17 | 三星电子株式会社 | Display device including sensing elements |
| CN1873748A (en) * | 2005-05-20 | 2006-12-06 | 株式会社半导体能源研究所 | Display device and electronic device |
| CN101187752A (en) * | 2007-12-06 | 2008-05-28 | 京东方科技集团股份有限公司 | Colorful filter and its making method and LCD device |
| CN101587256A (en) * | 2008-05-22 | 2009-11-25 | 精工爱普生株式会社 | Electro-optical device and electronic apparatus |
| CN104375311A (en) * | 2014-11-03 | 2015-02-25 | 深圳市华星光电技术有限公司 | Display panel and display device |
| CN106200183A (en) * | 2016-09-27 | 2016-12-07 | 昆山龙腾光电有限公司 | Thin-film transistor array base-plate and manufacture method and display panels |
| CN108010493A (en) * | 2016-10-28 | 2018-05-08 | 乐金显示有限公司 | Display panel and display device |
-
2018
- 2018-11-13 CN CN201811347784.XA patent/CN111179865B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1525223A (en) * | 2003-02-28 | 2004-09-01 | ���ǵ�����ʽ���� | Liquid crystal display panel, liquid crystal display device having the same, and method of manufacturing the same |
| CN1773335A (en) * | 2004-11-08 | 2006-05-17 | 三星电子株式会社 | Display device including sensing elements |
| CN1873748A (en) * | 2005-05-20 | 2006-12-06 | 株式会社半导体能源研究所 | Display device and electronic device |
| CN101187752A (en) * | 2007-12-06 | 2008-05-28 | 京东方科技集团股份有限公司 | Colorful filter and its making method and LCD device |
| CN101587256A (en) * | 2008-05-22 | 2009-11-25 | 精工爱普生株式会社 | Electro-optical device and electronic apparatus |
| CN104375311A (en) * | 2014-11-03 | 2015-02-25 | 深圳市华星光电技术有限公司 | Display panel and display device |
| CN106200183A (en) * | 2016-09-27 | 2016-12-07 | 昆山龙腾光电有限公司 | Thin-film transistor array base-plate and manufacture method and display panels |
| CN108010493A (en) * | 2016-10-28 | 2018-05-08 | 乐金显示有限公司 | Display panel and display device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255830A (en) * | 2020-10-23 | 2021-01-22 | 深圳市华星光电半导体显示技术有限公司 | Laser induction panel, manufacturing method thereof and display device |
| CN112255830B (en) * | 2020-10-23 | 2021-11-02 | 深圳市华星光电半导体显示技术有限公司 | Laser induction panel, manufacturing method thereof and display device |
| WO2022082974A1 (en) * | 2020-10-23 | 2022-04-28 | 深圳市华星光电半导体显示技术有限公司 | Laser sensing panel, fabrication method therefor, and display device |
| CN113157146A (en) * | 2021-04-19 | 2021-07-23 | 深圳市华星光电半导体显示技术有限公司 | Display panel and photosensitive display device |
| CN113157145A (en) * | 2021-04-19 | 2021-07-23 | 深圳市华星光电半导体显示技术有限公司 | Display panel and photosensitive display device |
| US11895899B2 (en) | 2021-04-19 | 2024-02-06 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display panel and photosensitive display device |
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|---|---|
| CN111179865B (en) | 2022-07-29 |
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