WO2022077717A1

WO2022077717A1 - Display panel and display apparatus

Info

Publication number: WO2022077717A1
Application number: PCT/CN2020/132100
Authority: WO
Inventors: 查宝; 江淼; 姚江波; 张鑫
Original assignee: 深圳市华星光电半导体显示技术有限公司
Priority date: 2020-10-16
Filing date: 2020-11-27
Publication date: 2022-04-21
Also published as: CN112306304B; CN112306304A

Abstract

A display panel (10) and a display apparatus. The display panel (10) comprises a display screen body (20) and a sensing layer (30). The sensing layer (30) comprises a touch device (32) and an optically controlled device (31). The touch device (32) comprises a transmitter electrode Tx and a receiver electrode Rx. The optically controlled device (31) comprises a photosensitive sensor (312), a scan line G, and a data read line RL. The orthographic projections of the scan line G and the receiver electrode Rx on the surface of the display screen body (20) are spaced apart from each other, and the orthographic projections of the data read line RL and the transmitter electrode Tx on the surface of the display screen body (20) are spaced apart from each other.

Description

Display panel and display device

technical field

The present application relates to the field of display technology, and in particular, to a display panel and a display device.

Background technique

With the development of display technology, in order to reduce costs, it has become a mainstream trend in the industry to integrate various sensors into a display panel, such as integrating a touch sensor and a light sensor into the display panel.

technical problem

In the existing display panels, generally only a touch sensor or only a light sensor is integrated, which cannot meet the technical problems of the touch and light control functions required by customers at the same time.

technical solutions

In a first aspect, the present application provides a display panel, the display panel includes:

display body;

a sensing layer disposed on the display screen body, the sensing layer includes a touch device and a light control device;

Wherein, the touch control device includes an emission electrode and a receiving electrode located at a different layer from the emission electrode; the light control device includes a photosensitive sensor, a first switch tube connected to the photosensitive sensor, and a first switch connected to the photosensitive sensor. A scan line and a data read line connected by a switch tube, the scan line and the data read line are located at different levels; the orthographic projection of the scan line on the surface of the display screen is at the receiving electrode The orthographic projections of the surface of the display screen body are spaced apart, and the orthographic projections of the data read lines on the surface of the display screen body are spaced apart from the orthographic projections of the emitter electrodes on the surface of the display screen body.

In some embodiments, the scan lines are disposed on the same layer as the receiving electrodes, and the data read lines are disposed on the same layer as the transmitting electrodes.

In some embodiments, the scan lines and the receiving electrodes both extend in a first direction, and the data read lines and the transmitting electrodes both extend in a second direction.

In some embodiments, a first signal shielding electrode is disposed between the scan line and the receiving electrode, the first signal shielding electrode extends along the first direction, and the first signal shielding electrode and the The scan lines and the receiving electrodes are spaced apart.

In some embodiments, a second signal shielding electrode is disposed between the data read line and the emission electrode, the second signal shielding electrode extends along the second direction, and the second signal shielding electrode is connected to the second signal shielding electrode. The data read line and the emitter electrode are spaced apart.

In some embodiments, the first signal shielding electrode is connected to a first fixed voltage, and the second signal shielding electrode is connected to a second fixed voltage.

In some embodiments, the first switch transistor includes a first gate, a first semiconductor layer, and a first source and drain layer connected to the first semiconductor layer; the photosensitive sensor includes a second gate, a photosensitive a semiconductor layer and a second source and drain layer connected to the photosensitive semiconductor layer;

The scan line is connected to the first gate, the first end of the first source and drain layer is connected to the first end of the second source and drain layer, and the first source and drain layer The second end is connected with the data read line.

In some embodiments, the sensing layer further includes a first power line provided on the same layer as the scan line, and a second power line provided on the same layer as the data read line; the first power line is connected to The second gate is connected, and the second power line is connected to the second end of the second source-drain layer.

In some embodiments, the sensing layer further includes:

a base substrate disposed on the display screen body;

a gate insulating layer disposed on the base substrate;

Wherein, the first gate, the second gate, the scan line, and the receiving electrode are all disposed on the base substrate; the gate insulating layer covers the first gate, The second gate, the scan line, and the receiving electrode; the first semiconductor layer, the photosensitive semiconductor layer, the emitter electrode, and the data read line are all disposed on the gate insulation The first source and drain layers are arranged on the first semiconductor layer and the gate insulating layer, and the second source and drain layers are arranged on the photosensitive semiconductor layer and the gate insulating layer superior.

In a second aspect, the present application further provides a display device, the display device includes a light beam emitter and a display panel, the display panel includes:

display body;

Wherein, the touch control device includes an emission electrode and a receiving electrode located at a different layer from the emission electrode; the light control device includes a photosensitive sensor, a first switch tube connected to the photosensitive sensor, and a first switch connected to the photosensitive sensor. A scan line and a data read line connected by a switch tube, the scan line and the data read line are located at different levels; the orthographic projection of the scan line on the surface of the display screen is at the receiving electrode The orthographic projection of the surface of the display screen body is spaced apart, and the orthographic projection of the data reading line on the surface of the display screen body is spaced apart from the orthographic projection of the emission electrode on the surface of the display screen body; the The light beam transmitter is used for emitting a projection light beam, and the light control device on the display panel is used for sensing the projection light beam projected on the display panel.

In some embodiments, the sensing layer further includes:

a base substrate disposed on the display screen body;

a gate insulating layer disposed on the base substrate;

beneficial effect

By integrating the touch device and the light control device in the display panel at the same time, the display panel needs to be operated at a short distance through the touch operation, and the display panel can be operated at a long distance through the light control operation, and the display panel also has the touch function. It can meet the touch and light control functions required by customers at the same time. At the same time, the scan line and the receiving electrode do not overlap, the data reading line and the transmitting electrode do not overlap, and the scan line and the receiving electrode are not overlapped. The first signal shielding electrode and the second signal shielding electrode are arranged between the data reading line and the emission electrode, which can effectively solve the problem of signal crosstalk when the touch device and the light control device are used at the same time.

Description of drawings

The technical solutions and other beneficial effects of the present application will be apparent through the detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of a first structure of a display panel provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a sensing layer provided by an embodiment of the present application;

3 is a schematic diagram of a circuit structure of a touch control device and a light control device provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a second structure of a display panel provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a third structure of a display panel provided by an embodiment of the present application;

6 to 9 are schematic diagrams of a manufacturing process of a display panel according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a display device provided by an embodiment of the present application.

Reference number:

10, display panel; 20, display body; 21, array substrate; 22, color filter substrate; 23, liquid crystal layer; 24, sealant; 30, induction layer; 31, light control device; 311, first switch tube; 311a, the first gate; 311b, the first semiconductor layer; 311c, the first source and drain layer; 312, the photosensitive sensor; 312a, the second gate; 312b, the photosensitive semiconductor layer; 312c, the second source and drain layer; 32, touch device; 41, first optical adhesive layer; 42, substrate substrate; 43, gate insulating layer; 44, passivation layer; 45, flat layer; 46, package cover plate; 47, conductive metal layer; 48. Light shielding layer; 49. Second optical adhesive layer; 50. Beam transmitter.

Embodiments of the present invention

The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [up], [down], [front], [rear], [left], [right], [inner], [outer], [side], etc., are only for reference Additional schema orientation. Therefore, the directional terms used are for describing and understanding the present invention, not for limiting the present invention. In the figures, structurally similar elements are denoted by the same reference numerals.

The present application addresses the technical problem that in the existing display panels, only a touch sensor or only a light sensor is generally integrated, which cannot satisfy the touch and light control functions required by customers at the same time.

The present application provides a display panel. As shown in FIG. 1 , the display panel 10 includes a display screen body 20 and a sensing layer 30 disposed on the display screen body 20. The sensing layer 30 can be disposed on the display screen. The light-emitting side of the panel 10 .

As shown in FIG. 2 and FIG. 3 , the sensing layer 30 includes a touch device 32 and a light control device 31 , and the touch device 32 is used for sensing a touch operation, so that the display panel 10 has a touch function; the The light control device 31 is used for sensing the light control operation, so that the display panel 10 has the light control function.

Specifically, the display panel 10 further includes a reading module, which may be a detection IC; the reading module is connected to the touch control device 32 and the light control device 31 for reading The touch sensing signal transmitted by the touch device 32 and the light control sensing signal transmitted by the light control device 31 .

It can be understood that, by integrating the touch device 32 and the light control device 31 in the display panel 10 at the same time, when the display panel 10 needs to be touched at close range, the display panel 10 is touched by a device such as a finger or a stylus, The touch operation sensed by the touch device 32 at the corresponding position on the display panel 10 transmits the touch sensing signal to the reading module, and the reading module controls the display panel 10 to respond accordingly according to the touch sensing signal, so as to realize the touch control Features.

When the display panel 10 needs to be operated from a distance, for example, when displaying through the display panel 10 in a conference room, the presenter uses a device that emits a projected beam such as a hand-held beam transmitter, and the light control device 31 senses the projected beam on the display panel 10. When projecting the light beam, the light control sensing signal is transmitted to the reading module, and the reading module controls the display panel 10 to respond accordingly according to the light control sensing signal, so as to realize the light control function. The display panel 10 has both the touch function and the light control function. The touch and light control functions required by customers can be satisfied at the same time, and the display panel 10 can realize the functions of short-range touch and remote light control, which is beneficial to improve the composite function of the display panel 10 .

Specifically, the touch device 32 includes an emitter electrode Tx and a receiver electrode Rx located at a different layer from the emitter electrode Tx.

The touch device 32 is a mutual capacitive touch device 32 , the transmitting electrode Tx is used for transmitting electrical signals, the receiving electrode Rx is used for receiving the touch sensing signal emitted by the transmitting electrode Tx, and the transmitting electrode Tx and the receiving electrode Rx form a touch control Capacitance; the reading module is connected to the receiving electrode Rx for receiving the touch sensing signal.

It should be noted that when the display panel 10 is touched by a device such as a finger or a stylus, the capacitance of the touch capacitor formed by the transmitting electrode Tx and the receiving electrode Rx at the touch position changes, and the touch sensing signal received by the receiving electrode Rx changes. Also changed, the reading module determines the touch point according to the touch sensing signal, and controls the display panel 10 to respond accordingly.

Specifically, the light control device 31 includes a photosensitive sensor 312 , a first switch tube 311 connected to the photosensitive sensor 312 , and a scan line G and a data read line RL connected to the first switch tube 311 . The scan lines G and the data read lines RL are located at different layers.

Wherein, the data reading line RL is used to transmit the light-controlled sensing signal generated by the photosensitive sensor 312, and the reading module is connected to the data reading line RL for receiving the data reading line RL The transmitted light-controlled induction signal.

It should be noted that the scan line G is used to access the scan signal, and the on-off of the first switch tube 311 is controlled by the scan signal, thereby controlling the on-off of the data read line RL and the photosensitive sensor 312; when the photosensitive sensor 312 receives When the outside light is illuminated, the photosensitive semiconductor layer 312b in the photosensitive sensor 312 generates carriers, thereby generating a corresponding light-controlled sensing signal. When the scanning line G is used to access the scanning signal, the first switch tube 311 is turned on, and the light-controlled sensing signal is turned on. The signal is transmitted to the reading module through the data reading line RL, and the reading module can locate the coordinates of the light control point according to the control induction signal to realize the light control function.

In one embodiment, the voltage value of the scan signal may be -15˜15.

It can be understood that, one of the light control devices 31 may further include more first switch tubes 311 and photosensitive sensors 312 .

Specifically, the orthographic projection of the scanning line G on the surface of the display screen body 20 is spaced apart from the orthographic projection of the receiving electrode Rx on the surface of the display screen body 20 , and the data reading line RL is at the The orthographic projection of the surface of the display screen body 20 is spaced apart from the orthographic projection of the emitter electrode Tx on the surface of the display screen body 20 .

It should be noted that the voltage connected to the scan line G is a fluctuating voltage, which is likely to cause signal crosstalk to the touch sensing signal received by the receiving electrode Rx, which affects the normal operation of the touch function; the voltage connected to the transmitting electrode Tx is The fluctuating voltage is likely to cause signal crosstalk to the light control sensing signal transmitted by the data reading line RL, which affects the normal operation of the light control function.

It can be understood that, in the present application, by setting the scan line G and the receiving electrode Rx without overlapping, and the data reading line RL and the emission electrode Tx without overlapping, the touch device 32 and the light control device can be effectively solved. Signal crosstalk problem when devices 31 are used simultaneously.

Specifically, the scanning lines G and the receiving electrodes Rx are arranged in the same layer, and the data reading lines RL are arranged in the same layer as the transmitting electrodes Tx, so as to reduce the overall thickness of the display panel 10 .

Specifically, the scan lines G and the receiving electrodes Rx both extend along the first direction, and the data reading lines RL and the transmitting electrodes Tx both extend along the second direction.

In one embodiment, the first direction is perpendicular to the second direction, for example, the first direction is horizontal and the second direction is vertical.

Specifically, a first signal shielding electrode Com1 is disposed between the scan line G and the receiving electrode Rx, the first signal shielding electrode Com1 extends along the first direction, and the first signal shielding electrode Com1 and The scan line G and the receiving electrode Rx are spaced apart.

It should be noted that the first signal shielding electrode Com1 is provided in the same layer as the scan line G and the receiving electrode Rx, and the first signal shielding electrode Com1 is used to shield the connection between the scan line G and the receiving electrode Rx. Electromagnetic interference, so as to avoid signal crosstalk generated by the scan line G to the touch sensing signal received by the receiving electrode Rx.

In one embodiment, the first signal shielding electrode Com1 can be made of metal, such as copper, silver, molybdenum, copper alloy, silver alloy or molybdenum alloy, etc., the scan line G and the receiving electrode Rx, and the The first signal shielding electrode Com1 can be formed by using the same material and using one manufacturing process, so as to reduce the production cost.

Specifically, a second signal shielding electrode Com2 is disposed between the data read line RL and the transmitting electrode Tx, the second signal shielding electrode Com2 extends along the second direction, and the second signal shielding electrode Com2 Com2 is spaced apart from the data read line RL and the emitter electrode Tx.

It should be noted that the second signal shielding electrode Com2 is provided on the same layer as the data reading line RL and the transmitting electrode Tx, and the second signal shielding electrode Com2 is used to shield the data reading line RL and the transmitting electrode Electromagnetic interference between Tx, so as to avoid signal crosstalk caused by the transmitting electrode Tx to the optical control induction signal transmitted by the data reading line RL.

In one embodiment, the second signal shielding electrode Com2 can be made of metal, such as copper, silver, molybdenum, copper alloy, silver alloy or molybdenum alloy, etc., the second signal shielding electrode Com2 and the data readout The wiring RL and the emitter electrode Tx can be formed by using the same material and using one process.

Specifically, the first signal shielding electrode Com1 is connected to a first fixed voltage, and the second signal shielding electrode Com2 is connected to a second fixed voltage, so as to enhance the signal shielding effect.

In one embodiment, the voltage values of the first fixed voltage and the second fixed voltage may be -20˜20.

Specifically, the voltage value of the voltage connected to the transmitting electrode Tx fluctuates with a certain frequency spectrum between 0 and n, where n is a value between 1 and 30.

Specifically, the first switch transistor 311 includes a first gate 311a, a first semiconductor layer 311b, and a first source-drain layer 311c connected to the first semiconductor layer 311b. The first source-drain layer 311c including a first source electrode and a first drain electrode; the photosensitive sensor 312 includes a second gate electrode 312a, a photosensitive semiconductor layer 312b, and a second source and drain electrode layer 312c connected to the photosensitive semiconductor layer 312b, the second source The drain layer 312c includes a second source electrode and a second drain electrode.

The scan line G is connected to the first gate electrode 311a; the first end of the first source and drain layer 311c is connected to the first end of the second source and drain layer 312c, and the first The second end of the source-drain layer 311c is connected to the data read line RL.

It can be understood that the first end of the first source-drain layer 311c is one of the first source and the first drain, and the second end of the first source-drain layer 311c is the other of the first source electrode and the first drain electrode; the first end of the second source-drain electrode layer 312c is one of the second source electrode and the second drain electrode Alternatively, the second end of the second source-drain layer 312c is the other of the second source and the second drain.

It should be noted that the materials for preparing the first semiconductor layer 311b and the photosensitive semiconductor layer 312b may be photosensitive semiconductor materials, such as hydrogenated amorphous silicon.

In one embodiment, the sensing layer 30 further includes a first power supply line SVGG provided on the same layer as the scan line G, and a second power supply line SVDD provided on the same layer as the data read line RL; the The first power supply line SVGG is connected to the second gate electrode 312a, and the second power supply line SVDD is connected to the second end of the second source-drain layer 312c.

It should be noted that the first power supply line SVGG is connected to a first voltage, the second power supply line SVDD is connected to a second voltage, the first voltage and the second voltage are both fixed voltages, and the first power supply line SVDD is connected to a second voltage. The first voltage and the second voltage may be -10 to 10 volts.

In one embodiment, the first power supply line SVGG is arranged along a first direction, and the second power supply line SVDD is arranged along a second direction.

In one embodiment, the sensing layer 30 further includes a storage capacitor C, a first end of the storage capacitor C, a first end of the first source-drain layer 311c, and the second source-drain layer The first end of 312c is connected, and the second end of the storage capacitor C is connected to the first power line SVGG.

It should be noted that the photosensitive sensor 312 is always in an on state. When the display panel 10 is exposed to external light, the photosensitive semiconductor layer 312b in the photosensitive sensor 312 generates carriers, and the generated carriers are stored by the storage capacitor C. When the scan line G is connected to the scan signal, the first switch tube 311 is turned on, the read module reads the carriers stored in the storage capacitor C through the data read line RL, and controls the display panel 10 to generate a corresponding response.

As shown in FIG. 4 , in one embodiment, the sensing layer 30 further includes a base substrate 42 disposed on the display screen body 20 and a gate insulating layer 43 disposed on the base substrate 42 .

The base substrate 42 can be adhered to the light-emitting side of the display panel 10 through the first optical adhesive layer 41; the first gate 311a, the second gate 312a, the scan line G , and the receiving electrode Rx are all disposed on the base substrate 42, and the gate insulating layer 43 covers the first gate 311a, the second gate 312a, the scan line G, and the the receiving electrode Rx; the first semiconductor layer 311b, the photosensitive semiconductor layer 312b, the emitter electrode Tx and the data reading line RL are all disposed on the gate insulating layer 43; the first source The drain layer 311 c is disposed on the first semiconductor layer 311 b and the gate insulating layer 43 , and the second source and drain layer 312 c is disposed on the photosensitive semiconductor layer 312 b and the gate insulating layer 43 .

In one embodiment, the sensing layer 30 further includes a passivation layer 44 disposed on the gate insulating layer 43 , a planarization layer 45 disposed on the passivation layer 44 , and a planarization layer disposed on the passivation layer 44 . Package cover 46 above 45.

The passivation layer 44 covers the emitter electrode Tx, the data read line RL, the second signal shielding electrode Com2, the first semiconductor layer 311b, the photosensitive semiconductor layer 312b, the second signal shielding electrode Com2 A source/drain layer 311c and the second source/drain layer 312c ; the package cover 46 can be bonded to the flat layer 45 through a second optical adhesive layer 49 .

In one embodiment, the sensing layer 30 further includes a conductive metal layer 47 disposed on the flat layer 45 , and the conductive metal layer 47 is connected to the second source and drain through a through hole penetrating the flat layer 45 . The polar layer 312c is connected, and the reading module is connected to the conductive metal layer 47 to realize the connection between the reading module and the photosensitive sensor 312 .

In one embodiment, the sensing layer 30 further includes a light shielding layer 48 disposed on a side of the first semiconductor layer 311 b away from the display panel 10 , and the light shielding layer 48 may be disposed on the flat layer 45 , the orthographic projection of the light shielding layer 48 on the surface of the display panel 10 covers the orthographic projection of the first semiconductor layer 311b on the surface of the display panel 10 to prevent external light from irradiating the first semiconductor layer 311b.

As shown in FIG. 5 , in one embodiment, the display screen body 20 is a liquid crystal screen body, and the display screen body 20 includes an array substrate 21 and a color filter substrate 22 arranged opposite to each other. A sealant 24 and a liquid crystal layer 23 are disposed between the color filter substrates 22 , and the sensing layer 30 is disposed on a side of the color filter substrate 22 away from the array substrate 21 .

It should be noted that the LCD screen body can also use COA (Color On Array) structure, the display mode of the LCD screen body can be VA, IPS, TN or FFS and other modes.

It should be noted that the display screen body 20 may also be a display screen body 20 such as OLED, QLED, Mini LED, or Micro LED.

Referring to FIG. 6 to FIG. 9 , FIG. 6 to FIG. 9 are schematic diagrams of the manufacturing process of the display panel 10 according to an embodiment of the present application.

As shown in FIG. 6, a first metal layer is formed on the base substrate 42, and the first metal layer is patterned to form the receiving electrode Rx, the first signal shielding electrode Com1, and the scanning line G , the first gate 311a and the second gate 312a.

A gate insulating layer 43 covering the receiving electrode Rx, the first signal shielding electrode Com1, the scanning line G, the first gate electrode 311a and the second gate electrode 312a is formed on the base substrate 42 .

As shown in FIG. 7 , a semiconductor layer is formed on the gate insulating layer 43 using a semiconductor material, and the semiconductor layer is patterned to form a first semiconductor layer 311b and a photosensitive semiconductor layer 312b that are independent of each other.

A second metal layer is formed on the gate insulating layer 43, the first semiconductor layer 311b and the photosensitive semiconductor layer 312b, and the second metal layer is patterned to form the emitter electrode Tx and the second signal shielding electrode Com2 , the data read line RL, the first source and drain layers 311c and the second source and drain layers 312c.

A passivation layer 44 covering the emitter electrode Tx, the second signal shielding electrode Com2, the data read line RL, the first source and drain layers 311c and the second source and drain layers 312c is formed.

As shown in FIG. 8 , a flat layer 45 is formed on the passivation layer 44 , and a light shielding layer 48 is formed on the flat layer 45 over the first semiconductor layer 311 b.

A through hole extending to the surface of the second source and drain layer 312 c is formed on the flat layer 45 , a conductive metal layer 47 filling the through hole is formed on the flat layer 45 , and the preparation of the conductive metal layer 47 The material can be ITO.

A second optical adhesive layer 49 covering the light shielding layer 48 and the conductive metal layer 47 is formed, and the package cover plate 46 is attached through the second optical adhesive layer 49 to form the sensing layer 30 .

As shown in FIG. 9 , the base substrate 42 of the sensing layer 30 is attached to the light-emitting side of the display screen body 20 through the first optical adhesive layer 41 to form the display panel 10 .

Based on the above-mentioned display panel 10 , the present application further provides a display device, as shown in FIG. 10 , the display device includes a beam emitter 50 and the display panel 10 described in any of the above-mentioned embodiments, the beam emitter 50 is used for emitting the projection beam, and the light control device 31 on the display panel 10 is used for sensing the projection beam projected on the display panel 10 .

Wherein, the projection light beam may be visible light, and the visible light may be one of red light, orange light, yellow light, green light, blue light, cyan light, violet light or other color light; the projection light beam may also be invisible light, Invisible light can be one of infrared light and ultraviolet light; taking infrared light as an example, the wavelength of invisible light can be 980 nanometers, 808 nanometers or 850 nanometers, etc. The type and wavelength of visible light and the type and wavelength of invisible light It can be designed according to the sensitive section of the photosensitive sensor 312 on the display panel 10 in the actual situation.

It should be noted that when the display panel 10 needs to be operated from a distance, for example, when displaying through the display panel 10 in a conference room, the presenter holds the beam transmitter 50 and uses the beam transmitter 50 to project the projected beam to the display panel. 10, the photosensitive sensor 312 on the display panel 10 senses the projection beam and sends a light-controlled induction signal to the reading module, and the reading module determines the projection position of the projection beam on the display panel 10 according to the light-controlled induction signal and controls the display panel 10. By making a corresponding response, for example, a determination operation, a handwriting operation, an operation of dragging a light spot, etc., a long-distance operation on the display panel 10 can be realized, which is convenient and quick.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

Specific examples are used herein to illustrate the principles and implementations of the present application. The descriptions of the above embodiments are only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

A display panel, wherein the display panel comprises:

display body;

a sensing layer disposed on the display screen, the sensing layer comprising a touch device and a light control device;

Wherein, the touch control device includes an emission electrode and a receiving electrode located on a different layer from the emission electrode; the light control device includes a photosensitive sensor, a first switch tube connected to the photosensitive sensor, and a first switch connected to the photosensitive sensor. A scan line and a data read line connected by a switch tube, the scan line and the data read line are located at different levels; the orthographic projection of the scan line on the surface of the display screen is at the receiving electrode The orthographic projections of the surface of the display screen body are spaced apart, and the orthographic projections of the data read lines on the surface of the display screen body are spaced apart from the orthographic projections of the emitter electrodes on the surface of the display screen body.
The display panel according to claim 1, wherein the scan lines are arranged in the same layer as the receiving electrodes, and the data reading lines are arranged in the same layer as the emitter electrodes.
The display panel of claim 2, wherein the scan lines and the receiving electrodes both extend along a first direction, and the data reading lines and the emitter electrodes both extend along a second direction.
The display panel according to claim 3, wherein a first signal shielding electrode is disposed between the scan line and the receiving electrode, the first signal shielding electrode extends along the first direction, and the first signal shielding electrode extends along the first direction. Signal shielding electrodes are spaced apart from the scan lines and the receiving electrodes.
The display panel according to claim 4, wherein a second signal shielding electrode is disposed between the data reading line and the emitting electrode, the second signal shielding electrode extends along the second direction, the A second signal shield electrode is spaced apart from the data read line and the emitter electrode.
The display panel of claim 5, wherein the first signal shielding electrode is connected to a first fixed voltage, and the second signal shielding electrode is connected to a second fixed voltage.
The display panel according to claim 1, wherein the first switch transistor comprises a first gate electrode, a first semiconductor layer, and a first source and drain layer connected to the first semiconductor layer; the photosensitive sensor comprises a second gate electrode, a photosensitive semiconductor layer, and a second source and drain layer connected to the photosensitive semiconductor layer;

The scan line is connected to the first gate, the first end of the first source and drain layer is connected to the first end of the second source and drain layer, and the first source and drain layer The second end is connected with the data read line.
The display panel according to claim 7, wherein the sensing layer further comprises a first power line provided on the same layer as the scan line, and a second power line provided on the same layer as the data reading line; the The first power supply line is connected to the second gate electrode, and the second power supply line is connected to the second end of the second source-drain layer.
The display panel according to claim 7, wherein the sensing layer further comprises:

a base substrate disposed on the display screen body;

a gate insulating layer disposed on the base substrate;

Wherein, the first gate, the second gate, the scan line, and the receiving electrode are all disposed on the base substrate; the gate insulating layer covers the first gate, The second gate, the scan line, and the receiving electrode; the first semiconductor layer, the photosensitive semiconductor layer, the emitter electrode, and the data read line are all disposed on the gate insulation The first source and drain layers are arranged on the first semiconductor layer and the gate insulating layer, and the second source and drain layers are arranged on the photosensitive semiconductor layer and the gate insulating layer superior.
A display device, wherein the display device includes a light beam emitter and a display panel, the display panel includes:

display body;

a sensing layer disposed on the display screen, the sensing layer comprising a touch device and a light control device;

Wherein, the touch control device includes an emission electrode and a receiving electrode located on a different layer from the emission electrode; the light control device includes a photosensitive sensor, a first switch tube connected to the photosensitive sensor, and a first switch connected to the photosensitive sensor. A scan line and a data read line connected by a switch tube, the scan line and the data read line are located at different levels; the orthographic projection of the scan line on the surface of the display screen is at the receiving electrode The orthographic projection of the surface of the display screen body is spaced apart, and the orthographic projection of the data reading line on the surface of the display screen body is spaced apart from the orthographic projection of the emitting electrode on the surface of the display screen body; the The light beam transmitter is used for emitting the projection light beam, and the light control device on the display panel is used for sensing the projection light beam projected on the display panel.
11. The display device according to claim 10, wherein the scan lines are provided in the same layer as the receiving electrodes, and the data read lines are provided in the same layer as the emitter electrodes.
The display device of claim 11, wherein the scan lines and the receiving electrodes both extend in a first direction, and the data reading lines and the transmitting electrodes both extend in a second direction.
The display device according to claim 12, wherein a first signal shielding electrode is disposed between the scan line and the receiving electrode, the first signal shielding electrode extends along the first direction, and the first signal shielding electrode extends along the first direction. Signal shielding electrodes are spaced apart from the scan lines and the receiving electrodes.
14. The display device of claim 13, wherein a second signal shielding electrode is disposed between the data reading line and the emission electrode, the second signal shielding electrode extends along the second direction, the A second signal shield electrode is spaced apart from the data read line and the emitter electrode.
The display device of claim 14, wherein the first signal shielding electrode is connected to a first fixed voltage, and the second signal shielding electrode is connected to a second fixed voltage.
The display device according to claim 10, wherein the first switch transistor comprises a first gate electrode, a first semiconductor layer, and a first source and drain layer connected to the first semiconductor layer; the photosensitive sensor comprises a second gate electrode, a photosensitive semiconductor layer, and a second source and drain layer connected to the photosensitive semiconductor layer;

The scan line is connected to the first gate, the first end of the first source and drain layer is connected to the first end of the second source and drain layer, and the first source and drain layer The second end is connected with the data read line.
The display device according to claim 16, wherein the sensing layer further comprises a first power line provided on the same layer as the scan line, and a second power line provided on the same layer as the data reading line; the The first power supply line is connected to the second gate electrode, and the second power supply line is connected to the second end of the second source-drain layer.
The display device of claim 16, wherein the sensing layer further comprises:

a base substrate disposed on the display screen body;

a gate insulating layer disposed on the base substrate;

Wherein, the first gate, the second gate, the scan line, and the receiving electrode are all disposed on the base substrate; the gate insulating layer covers the first gate, The second gate, the scan line, and the receiving electrode; the first semiconductor layer, the photosensitive semiconductor layer, the emitter electrode, and the data read line are all disposed on the gate insulation The first source and drain layers are arranged on the first semiconductor layer and the gate insulating layer, and the second source and drain layers are arranged on the photosensitive semiconductor layer and the gate insulating layer superior.