Display equipment and electronic equipment

By integrating pixel circuits, light emitting units, fingerprint sensor circuits and fingerprint sensor units on the substrate of the display device, and partially overlapping the light emitting units with the fingerprint sensor circuit, the problem of integrating fingerprint sensors and display functions in the prior art is solved, and high-density fingerprint sensing and high-resolution display are achieved.

CN112349232BActive Publication Date: 2025-04-08INNOLUX CORP
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Patent Information

Application Number
CN201910723185.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-08-06
Publication Date
2025-04-08
Estimated Expiration
2040-10-03

AI Technical Summary

Technical Problem

The prior art is difficult to effectively integrate fingerprint sensors and display functions in display devices, especially to provide highly sensitive fingerprint sensing functions while maintaining a high resolution display screen.

Method used

A display device is designed that integrates a pixel circuit, a light emitting unit, a fingerprint sensor circuit and a fingerprint sensor unit on the substrate, and integrates the fingerprint sensor and display functions by partially overlapping the first light emitting unit with the fingerprint sensor circuit.

Benefits of technology

It realizes high-density integrated fingerprint sensor in display devices, providing highly sensitive fingerprint sensing functions while maintaining high resolution of the display screen.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a display device and an electronic device, wherein the display device includes a substrate, a pixel circuit, a first light-emitting unit, a fingerprint sensor circuit, and a fingerprint sensor unit. The pixel circuit is arranged on the substrate, the first light-emitting unit is arranged on the substrate and driven by the pixel circuit. The fingerprint sensor circuit is arranged on the substrate, and the fingerprint sensor unit is arranged on the substrate and driven by the fingerprint sensor circuit. The first light-emitting unit overlaps at least a portion of the fingerprint sensor circuit in a top-view direction of the display device.
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Description

Technical Field

[0001] The present invention relates to a display device and an electronic device with a sensor, and in particular to a display device and an electronic device with a fingerprint sensor. Background Art

[0002] Generally speaking, fingerprint recognition can be applied to identity recognition. Therefore, with the development of electronic device technology, fingerprint recognition functions have also been integrated into various electronic devices and widely used. Users can manage electronic devices directly through fingerprint recognition without memorizing passwords. In addition, since the fingerprint recognition process is fast and difficult to imitate, fingerprint recognition can provide good convenience or security. In recent years, the industry has been committed to integrating fingerprint sensing and display functions into the same electronic device, and providing high-resolution display screens at the same time. Sensor technology is not only used for fingerprint recognition, but also has applications such as image sensing or touch control sensing. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a display device, which includes a substrate, a pixel circuit, a first light-emitting unit, a fingerprint sensor circuit and a fingerprint sensor unit. The pixel circuit is arranged on the substrate, the first light-emitting unit is arranged on the substrate and driven by the pixel circuit. The fingerprint sensor circuit is arranged on the substrate, and the fingerprint sensor unit is arranged on the substrate and driven by the fingerprint sensor circuit. The first light-emitting unit overlaps with at least a portion of the fingerprint sensor circuit in a top view direction of the display device.

[0004] The present invention also provides an electronic device, which includes a display device, and the display device includes: a substrate, a first pixel circuit, a first light-emitting unit, a sensor circuit and a sensor unit. The first pixel circuit is arranged on the substrate, and the first light-emitting unit is arranged on the substrate and driven by the first pixel circuit. The sensor circuit is arranged on the substrate, and the sensor unit is arranged on the substrate and driven by the sensor circuit. The first light-emitting unit overlaps with at least a portion of the sensor circuit in a top-view direction of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 FIG. 1 is a schematic diagram of a display device according to a first embodiment of the present invention.

[0006] Figure 2 Shown Figure 1 A circuit diagram of a display device.

[0007] Figure 3 Shown along Figure 1 Schematic diagram of the structural cross-section along the section line A-A'.

[0008] Figure 4FIG. 1 is a schematic diagram of a display device according to a second embodiment of the present invention.

[0009] Figure 5 FIG. 1 is a schematic diagram of a display device according to a third embodiment of the present invention.

[0010] Figure 6 FIG. 4 is a schematic diagram of a display device according to a fourth embodiment of the present invention.

[0011] Figure 7 FIG. 4 is a schematic diagram of a display device according to a fifth embodiment of the present invention.

[0012] Figure 8 FIG. 4 is a schematic diagram of a display device according to a sixth embodiment of the present invention.

[0013] Fig. 9 Shown along Figure 8 Schematic diagram of the structural cross-section along the section line BB'.

[0014] Fig.10 FIG. 1 is a schematic diagram of a display device according to a seventh embodiment of the present invention.

[0015] Fig.11 FIG. 8 is a schematic diagram of a display device according to an eighth embodiment of the present invention.

[0016] Fig.12 FIG. 4 is a schematic diagram of a display device according to a ninth embodiment of the present invention.

[0017] Description of reference numerals: 100-display device; 102-substrate; 1041-first light-emitting unit; 1043-second light-emitting unit; 1045-third light-emitting unit; 1061-first pixel circuit; 1063-second pixel circuit; 1065-third pixel circuit; 108-fingerprint sensor unit; 110-fingerprint sensor circuit; 1111, 1113-wires; 1121, 1123-scanning lines; 114-data lines; 116-transmitting signal lines; 118-reset signal lines; 120-reading signal lines; BE1, BE2-lower electrodes; BP, BP2-insulating layers; D1-first direction; D2-second direction; D E-drain; EL-luminescent material layer; GE-gate; GI, GI2-gate insulating layer; ILD-interlayer dielectric layer; IN1, IN2-inorganic insulating layer; IN3-organic insulating layer; PDL-pixel definition layer; PLN-flat layer; S11, S12-group; SC-semiconductor layer; SE-source; SM1-first semiconductor layer; SM2-second semiconductor layer; SM3-third semiconductor layer; SPC1, SPC2-sub-pixel column; T1, T11, T12, T2, T21, T22, T1a, T1b, T1c-thin film transistor; TE1, TE2-upper electrode; TE3-signal line; V-top view direction. DETAILED DESCRIPTION

[0018] The present invention can be understood by referring to the following detailed description in conjunction with the accompanying drawings. It should be noted that in order to facilitate the understanding of the readers and simplify the drawings, the multiple drawings in the present invention only depict a portion of the electronic device or splicing device, and the specific elements in the drawings are not drawn according to the actual scale. In addition, the number and size of each element in the drawings are only for illustration and are not intended to limit the scope of the present invention.

[0019] Certain words are used throughout the specification and claims to refer to specific components. It should be understood by those skilled in the art that electronic equipment manufacturers may refer to the same components by different names. This document does not intend to distinguish between components that have the same function but different names. In the following specification and claims, the words "including" and "comprising" are open-ended words and should be interpreted as "including but not limited to..."

[0020] It should be understood that when an element or film layer is referred to as being "on" or "connected to" another element or film layer, it may be directly on or directly connected to the other element or layer, or there may be an intervening element or film layer between the two (indirect case). Conversely, when an element is referred to as being "directly on" or "directly connected to" another element or film layer, there may be no intervening element or film layer between the two.

[0021] Electrical connection can be direct or indirect. Electrical connection between two components can be direct contact to transmit electrical signals without any other components between them. Electrical connection between two components can be bridged by a component between them to transmit electrical signals. Electrical connection can also be called electrical connection or coupling.

[0022] The terms "substantially" or "equal" generally mean within 20% of a given value or range, or within 10%, 5%, 3%, 2%, 1% or 0.5% of a given value or range.

[0023] Although the terms first, second, third, etc. can be used to describe a variety of components, the components are not limited to these terms. These terms are only used to distinguish a single component from other components in the specification. The same terms may not be used in the claims, but may be replaced by first, second, third, etc. according to the order in which the components are declared in the claims. Therefore, in the following description, the first component may be the second component in the claims.

[0024] It should be noted that the embodiments listed below can replace, reorganize, and mix the technical features in several different embodiments to complete other embodiments without departing from the spirit of the present invention.

[0025] The electronic device of the present invention may include a display device, an antenna device or a splicing device, but is not limited thereto. The electronic device may be a bendable or flexible electronic device. The electronic device may be a display device with a touch function, an image sensing function, various parameter sensing functions, or a fingerprint recognition function, wherein the display device may be a self-luminous organic light-emitting diode display (organic light-emitting diode (OLED) display), an inorganic light-emitting diode display (inorganic light-emitting diode display, LED), a sub-millimeter light-emitting diode display (micro-light-emitting diode (mini LED) display, mini-meter sized LED), a micro-light-emitting diode display (micro-light-emitting diode (micro-LED) display, micro-meter sized LED), a quantum dot (quantum dots (QDs)) material display (for example, including quantum dot light-emitting diodes (QLED, QDLED)), a fluorescence material display, a phosphorescence material display or other suitable displays, or any combination of the above, but is not limited thereto. The concept or principle of the present invention may also be applied to a non-self-luminous liquid crystal display (liquid crystal display, LCD), but is not limited thereto. The embodiments of the present invention will take the electronic device including a self-luminous LED display as an example, but the present invention is not limited thereto.

[0026] The antenna device may be, for example, a liquid crystal antenna or other types of antenna types, but is not limited thereto. The splicing device may be, for example, a display splicing device, an antenna splicing device or a combination thereof, but is not limited thereto. It should be noted that the electronic device may be any arrangement or combination of the foregoing, but is not limited thereto. In addition, the appearance of the electronic device may be rectangular, circular, polygonal, a shape with curved edges, or other suitable shapes. The electronic device may have peripheral systems such as a drive system, a control system, a light source system, a shelf system, etc. to support the display device, the antenna device or the splicing device. The following text will use a display device as an electronic device to illustrate the contents of the present invention, but the present invention is not limited thereto. If it is an antenna device or other device, its smallest working unit is equivalent to the pixel unit of the display device.

[0027] The sensor of the present invention can be applied to sensing applications such as light, heat, pressure, electromagnetic force, vibration, sound, gravity, ultrasound, length, image, touch control or fingerprint recognition, and is not limited to a specific function. The embodiment of the present invention will take fingerprint recognition sensing as an example, but is not limited to this.

[0028] The pixel unit in the display device may include a plurality of sub-pixels arranged side by side. In one embodiment, the sub-pixels in the display device may include green, red and blue sub-pixels, or include green, red, blue and yellow sub-pixels, or include green, red, blue and white sub-pixels, thereby displaying a color image through the light of different colors generated by the sub-pixels, but it is not limited to this. The color of the light provided by the sub-pixels can be designed according to the requirements. In another embodiment, the display device may be a monochrome display device, and all sub-pixels can emit light of a single color, such as white, red or any suitable color. In addition, the top view shape of the sub-pixel may be a rectangle, a parallelogram, a ">" shape or any suitable shape.

[0029] Please refer to Figure 1 and Figure 2 , Figure 1 FIG. 1 is a schematic diagram of a display device according to a first embodiment of the present invention. Figure 2 Shown Figure 1 Schematic diagram of the circuit of the display device. In order to make the attached figure more simplified and easy to understand, Figure 1 Only the structure of one pixel unit of the display device 100 is shown, and thin film transistors, capacitors, scan lines, data lines, transmission signal lines (power lines), reset signal lines, read signal lines or other related drive signal lines in the pixel circuit and fingerprint sensor circuit are omitted. Figures 4 to 8 The structure of only one pixel unit of the display device 100 is shown as an example. The display device 100 of this embodiment may include a substrate 102 (shown in FIG. Figure 3 ), multiple pixel circuits, multiple fingerprint sensor circuits, multiple light-emitting units, and multiple fingerprint sensor units. The pixel circuits, fingerprint sensor circuits, light-emitting units, and fingerprint sensor units can be arranged on the substrate 102. The light-emitting units can be arranged above the pixel circuits (upward light-emitting type) or below (downward light-emitting type) and electrically connected to the pixel circuits for driving, and the fingerprint sensor units can be arranged above or below the fingerprint sensor circuits and electrically connected to the fingerprint sensor circuits for driving. In the present embodiment, the material of the substrate 102 may include glass, quartz, sapphire, polymers (such as polyimide (PI), polyethylene terephthalate (PET)) and / or other suitable materials as a flexible substrate or a hard substrate, but is not limited thereto.

[0030] The following uses one pixel unit in the display device 100 to illustrate the features of this embodiment. Figure 1 As shown, the display device 100 may include a first light emitting unit 1041, a second light emitting unit 1043, and a third light emitting unit 1045. The first light emitting unit 1041, the second light emitting unit 1043, and the third light emitting unit 1045 may be arranged side by side along a first direction D1, and the third light emitting unit 1045 may be arranged between the first light emitting unit 1041 and the second light emitting unit 1043, but not limited thereto. In this embodiment, the first light emitting unit 1041, the second light emitting unit 1043, and the third light emitting unit 1045 may emit light of different colors, the first light emitting unit 1041 may emit blue light, the second light emitting unit 1043 may emit red light, and the third light emitting unit 1045 may emit green light, but not limited thereto. In this embodiment, the light emitting unit may include an OLED, but not limited thereto. In some embodiments, the light emitting unit may include an OLED, an LED, a mini LED, a micro-LED, a quantum dot light emitting diode (QLED, QDLED), or any combination thereof, but not limited thereto. In some embodiments, the light emitting unit may be different parts of the liquid crystal display for emitting light of different colors, but is not limited thereto. In some embodiments, the light emitting unit may also emit other types of light in the non-visible light band, such as ultraviolet light or infrared light.

[0031] exist Figure 1 In the first light-emitting unit 1041, the second light-emitting unit 1043 and the third light-emitting unit 1045, the range or boundary of each light-emitting unit can be defined by the range or boundary of one of the electrodes of the OLED, but it is not limited thereto. For example, the light-emitting unit can be a diode. Generally, a diode is mainly composed of an anode (lower electrode), a light-emitting layer, and a cathode (upper electrode). The anode is usually electrically connected to a thin-film transistor and the cathode is electrically connected to a common voltage source. When current flows through the light-emitting layer, light can be emitted. The range or boundary of each light-emitting unit can be defined by the range or boundary of the lower electrode or anode of the OLED, but it is not limited thereto. In addition, the actual light-emitting area of ​​each light-emitting unit may be greater than, equal to, or less than the area of ​​the lower electrode. The shape of the light-emitting unit is not limited to Figure 1 The illustrated example is limited to the above, and the light emitting unit may have different shapes according to the requirements.

[0032] like Figure 1As shown, the area of ​​the first light-emitting unit 1041 may be larger than the area of ​​the second light-emitting unit 1043, and the area of ​​the second light-emitting unit 1043 may be larger than the area of ​​the third light-emitting unit 1045, but this is not limited to this. The area size of the light-emitting unit can be designed according to the lifespan, luminous efficiency and hue requirements of the light-emitting material used to emit light of different colors. For example, when the lifespan of the light-emitting material used to emit light of a certain color is short, the area of ​​the light-emitting unit emitting this light can be increased. Conversely, when the lifespan of the light-emitting material used to emit light of a certain color is long, the area of ​​the light-emitting unit emitting this light can be reduced, but this is not limited to this.

[0033] like Figure 1 and Figure 2 As shown, the display device 100 may include a first pixel circuit 1061, a second pixel circuit 1063, and a third pixel circuit 1065. The first pixel circuit 1061, the second pixel circuit 1063, and the third pixel circuit 1065 may be arranged side by side along the first direction D1, and the third pixel circuit 1065 may be arranged between the first pixel circuit 1061 and the second pixel circuit 1063, but the present invention is not limited thereto. The first light-emitting unit 1041 may be arranged above (or below) the first pixel circuit 1061, the first light-emitting unit 1041 may be electrically connected to the first pixel circuit 1061 and may be driven by the first pixel circuit 1061, the first light-emitting unit 1041 may overlap with the first pixel circuit 1061 in a top-view direction V, and a portion of the first light-emitting unit 1041 may extend out of the first pixel circuit 1061, but the present invention is not limited thereto. The top-view direction V may be, for example, a normal direction perpendicular to the surface of the substrate 102. The second light-emitting unit 1043 may be disposed above (or below) the second pixel circuit 1063, the second light-emitting unit 1043 may be electrically connected to and driven by the second pixel circuit 1063, and the second light-emitting unit 1043 may overlap with the second pixel circuit 1063 in the top-view direction V. The third light-emitting unit 1045 may be disposed above (or below) the third pixel circuit 1065, the third light-emitting unit 1045 may be electrically connected to and driven by the third pixel circuit 1065, and the third light-emitting unit 1045 may overlap with the third pixel circuit 1065 in the top-view direction V. In the present embodiment, the areas of the first pixel circuit 1061, the second pixel circuit 1063, and the third pixel circuit 1065 may be approximately equal, but are not limited thereto. In addition, the shape of the pixel circuit is not limited to Figure 1 The illustrated embodiment is limited thereto, and the pixel circuit may have different shapes according to requirements.

[0034] In addition, the display device 100 may include a plurality of scan lines, a plurality of data lines, and a plurality of emission signal lines disposed on the substrate 102. Figure 1 and Figure 2As shown, a plurality of scan lines (such as scan lines 1121 and 1123) may extend along a first direction D1, a plurality of data lines 114 and a plurality of emission signal lines 116 (shown in FIG. Figure 2 ) may extend along the second direction D2, and the data lines 114 and the emission signal lines 116 may be interlaced with the scan lines 1121 and 1123, but the present invention is not limited thereto. In other embodiments, the data lines 114, the emission signal lines 116, and the scan lines 1121 and 1123 may not necessarily be straight lines, but may still substantially extend in one direction. In other embodiments, the scan lines 1121 and 1123 may extend along different directions, the data lines 114 or the emission signal lines 116 may also extend along other directions other than the second direction D2, and the data lines 114 or the emission signal lines 116 may also be partially or completely parallel to the scan lines 1121 and 1123. Figure 1 and Figure 2 The first pixel circuit 1061, the second pixel circuit 1063 and the third pixel circuit 1065 in the image processing apparatus can all be electrically connected to the scan line 1121 and are respectively electrically connected to a data line 114 and an emission signal line 116. In addition, the scan line 1123 can be electrically connected to the first pixel circuit 1061, the second pixel circuit 1063 and the third pixel circuit 1065 of another row. Figure 2 For example, each pixel circuit may include two thin film transistors electrically connected to each other, the gate of the thin film transistor T11 may be electrically connected to the scan line 1121, a first end of the thin film transistor T11 may be electrically connected to a data line 114, and a second end of the thin film transistor T11 may be electrically connected to the gate of another thin film transistor T12, but the present invention is not limited thereto. A first end of the thin film transistor T12 may be electrically connected to an emission signal line 116, and a second end of the thin film transistor T12 may be electrically connected to a corresponding light-emitting unit, wherein the emission signal line 116 may provide a voltage to the thin film transistor T12, but the present invention is not limited thereto. In addition, the first end and the second end of the thin film transistor described herein may be, for example, a source and a drain, or a drain and a source.

[0035] Please refer to Figure 2In this article, the pixel circuit may, for example, include a thin film transistor electrically connected to the corresponding light-emitting unit and / or used to drive the corresponding light-emitting unit. The area and boundary of the pixel circuit are the area and boundary occupied by these elements. The pixel circuit may not include the data line 114, the scan line 1121, 1123, the emission signal line 116 or other signal lines for inputting signals. In detail, the pixel circuit may include part of the signal line used to form the structure of the thin film transistor. For example, a scan line, a data line or an emission signal line that is part of the gate of the thin film transistor. In addition, the number or connection relationship of the thin film transistors in the pixel circuit of the present invention is not limited to the above. Each pixel circuit may, for example, include more than two thin film transistors, and may, for example, include three, four, six, seven or other number of thin film transistors. The definition of the fingerprint sensor circuit is roughly the same as that of the pixel circuit. The difference is that the fingerprint sensor circuit is electrically connected to and drives the fingerprint sensor unit, and the connection method and number of thin film transistors may be different.

[0036] Please refer again Figure 1 , the display device 100 may include a fingerprint sensor unit 108 and a fingerprint sensor circuit 110. The fingerprint sensor unit 108 may be arranged above (upper side sensing) or below (lower side sensing) the fingerprint sensor circuit 110. The fingerprint sensor unit 108 may be electrically connected to the fingerprint sensor circuit 110 and may be driven by the fingerprint sensor circuit 110, and the fingerprint sensor unit 108 may overlap with the fingerprint sensor circuit 110 in the top-view direction V. The fingerprint sensor unit 108 of the present embodiment may include a photodiode, such as a PIN diode or other suitable photoelectric conversion element, to detect the intensity of reflected light reflected by the finger for fingerprint identification, but is not limited thereto. In other embodiments, the fingerprint sensor unit 108 may also be a capacitor or a piezoelectric element, or used for non-fingerprint sensing, such as touch sensing or pressure sensing. In addition, the shapes of the fingerprint sensor unit 108 and the fingerprint sensor circuit 110 are not limited to the above. Figure 1 The shown are limited and can have different shapes according to needs.

[0037] like Figure 1As shown, in a second direction D2, the fingerprint sensor circuit 110 may be arranged on one side of the first pixel circuit 1061, the second pixel circuit 1063 and the third pixel circuit 1065, and the fingerprint sensor unit 108 may be arranged on one side of the second light-emitting unit 1043 and the third light-emitting unit 1045, but not limited thereto. The second direction D2 may be, for example, perpendicular to the first direction D1, but not limited thereto. In this embodiment, the first light-emitting unit 1041 may extend along the second direction D2 to the fingerprint sensor circuit 110, so that the first light-emitting unit 1041 overlaps at least a portion of the fingerprint sensor circuit 110 in the top-view direction V, but not limited thereto. In addition, the second light-emitting unit 1043 and the third light-emitting unit 1045 do not extend to the fingerprint sensor circuit 110, but not limited thereto. In some embodiments, the third light-emitting unit 1045 may extend along the second direction D2 to the fingerprint sensor circuit 110, so that the third light-emitting unit 1045 overlaps at least a portion of the fingerprint sensor circuit 110 in the top-view direction V. Meanwhile, the first light emitting unit 1041 and the second light emitting unit 1043 do not extend onto the fingerprint sensor circuit 110 , and the fingerprint sensor unit 108 may be disposed on one side of the first light emitting unit 1041 and the second light emitting unit 1043 , but is not limited thereto.

[0038] In addition, the area ratio between the fingerprint sensor unit and the light-emitting unit can be adjusted according to the requirements of display effect or fingerprint sensing sensitivity. For example, in the present embodiment, the ratio of the area of ​​the fingerprint sensor unit 108 to the area of ​​the first light-emitting unit 1041 can be 0.1 to 2 (greater than or equal to 0.1 and less than or equal to 2), or can be 0.1 to 1 (greater than or equal to 0.1 and less than or equal to 1), wherein the range or boundary of the fingerprint sensor unit 108 can be defined by the range or boundary of one of the electrodes (such as the lower electrode) of the light sensor, but not limited thereto. Within this range, the display device 100 can have a high density of fingerprint sensor units 108 and can provide a highly sensitive fingerprint sensing function, while maintaining a high resolution of the display screen. In addition, the ratio between the area of ​​the second light-emitting unit 1043 and the area of ​​the fingerprint sensor unit 108, or the ratio between the area of ​​the third light-emitting unit 1045 and the area of ​​the fingerprint sensor unit 108 can also apply the above-mentioned ratio range, but not limited thereto.

[0039] On the other hand, Figure 1 In the pixel unit shown, the fingerprint sensor circuit 110 can be electrically connected to two adjacent scan lines 1121 and 1123 through conductive lines 1111 and 1113. Figure 2For example, the fingerprint sensor circuit 110 may include at least two thin film transistors electrically connected to each other, wherein the gate of the thin film transistor T21 may be electrically connected to the scan line 1121, a first end of the thin film transistor T21 may be electrically connected to a reset signal line 118, and a second end of the thin film transistor T21 may be electrically connected to the fingerprint sensor unit 108, but not limited thereto. The gate of the thin film transistor T22 may be electrically connected to the scan line 1123, a first end of the thin film transistor T21 may be electrically connected to the fingerprint sensor unit 108, and a second end of the thin film transistor T21 may be electrically connected to the read signal line 120, but not limited thereto. In this way, the integrated circuit chip in the display device 100 can read the current change generated by the fingerprint sensor unit 108 through the read signal line 120, and the fingerprint sensor unit 108 can return to the initial state before each operation through the reset signal line 118.

[0040] In some variations of the first embodiment, the thin film transistor T21 of the fingerprint sensor circuit 110 may not be electrically connected to the scan line 1121. For example, the display device 100 may include a plurality of control signal lines extending in parallel with the scan lines 1121 and 1123, wherein one control signal line may be disposed between the scan line 1121 and the scan line 1123, the thin film transistor T21 may be electrically connected to the control signal line, and the thin film transistor T22 may still be electrically connected to the scan line 1123, but the present invention is not limited thereto.

[0041] Similar to the definition of a pixel circuit, the fingerprint sensor circuit 110 may, for example, include a thin film transistor electrically connected to the corresponding fingerprint sensor unit 108 and / or used to drive the corresponding fingerprint sensor unit 108, and the area and boundary of the fingerprint sensor circuit 110 are the area and boundary occupied by these components. The fingerprint sensor circuit 110 may not include the data line 114, the scan lines 1121, 1123, the transmission signal line 116, the reset signal line 118, the read signal line 120 or other signal lines for inputting signals. In detail, the fingerprint sensor circuit 110 may include a portion of the signal line used to form the structure of the thin film transistor. For example, the scan line is a part of the gate of the thin film transistor. In addition, the number or connection relationship of the thin film transistors in the fingerprint sensor circuit 110 of the present invention is not limited to the above, and each fingerprint sensor circuit 110 may, for example, include more than two thin film transistors, and may, for example, include three, four, six, seven or other number of thin film transistors.

[0042] The operation of the fingerprint sensing function of the display device 100 of this embodiment can be described by the following examples, but is not limited thereto. For example, the display device 100 may include a display function, a touch sensing function, and a fingerprint sensing function. When the display device 100 is displaying a picture or not displaying a picture, when the user's finger touches the display device 100, the display device 100 can determine the position of the finger touch. At this time, the display device 100 can drive the pixels near the touch position to emit green light (or other colors of light that are highly sensitive to the light sensor), and drive the fingerprint sensor near the touch position to detect the fingerprint.

[0043] As described above, in the display device 100 of the present embodiment, each pixel unit includes not only red sub-pixels, blue sub-pixels, green sub-pixels and pixel circuits for driving the above sub-pixels, but also a fingerprint sensor unit 108 and a fingerprint sensor circuit 110 for driving the fingerprint sensor unit 108, thereby integrating the fingerprint sensor into the display area of ​​the display device 100, and further expanding and extending the display area so that the range of the display area can be closer to the edge of the display device 100, thereby achieving the effect of expanding the screen-to-body ratio or narrowing the frame. In addition, the fingerprint sensor circuit 110 of the present embodiment can share the scan lines 1121 and 1123 with the pixel circuit, without the need to additionally set up signal lines for transmitting signals to the fingerprint sensor circuit 110, which can reduce the number of wires in the display device 100 and save space. The cross-sectional structure of the display device 100 of the present embodiment will be further introduced below.

[0044] Please refer to Figure 3 , which is shown along Figure 1 In order to make the accompanying drawings more simplified and easy to understand, Figure 3 Only one thin film transistor in the first pixel circuit 1061 and one thin film transistor in the fingerprint sensor circuit 110 are shown as examples. The number of thin film transistors in the first pixel circuit 1061 and the fingerprint sensor circuit 110 is not limited to one thin film transistor in the first pixel circuit 1061 and the fingerprint sensor circuit 110. Figure 3The figure is limited. In the top-view direction V, one of the thin-film transistors T1 of the first pixel circuit 1061 is arranged between the first light-emitting unit 1041 and the substrate 102, and one of the thin-film transistors T2 of the fingerprint sensor circuit 110 is arranged between the fingerprint sensor unit 108 and the substrate 102, but not limited thereto. The thin-film transistor T1 and the thin-film transistor T2 can be arranged on a buffer layer 122 together, so the thin-film transistors T1 and T2 (or the first pixel circuit 1061 and the fingerprint sensor circuit 110) of this embodiment can be arranged on the same plane, but not limited thereto. The buffer layer 122 can be arranged between the thin-film transistors T1, T2 and the substrate 102. In addition, the display device 100 may further include a light shielding layer 124 arranged between the thin-film transistor T1 and the substrate 102, and the light shielding layer 124 may be arranged under the buffer layer 122.

[0045] The thin film transistors T1 and T2 may respectively include a gate GE, a source SE, a drain DE and a semiconductor layer SC. The semiconductor layer SC is disposed on the buffer layer 122, and the semiconductor layer SC includes two doped regions respectively located at the two ends of the semiconductor layer SC, and the doped regions may be used to electrically connect the source SE and the drain DE respectively. The gate GE is located on the semiconductor layer SC, and a gate insulating layer GI may be provided between the gate GE and the semiconductor layer SC. An interlayer dielectric layer ILD may cover the gate GE, and the source SE and the drain DE may be provided on the interlayer dielectric layer ILD. In addition, an insulating layer BP may cover the source SE and the drain DE, and a planar layer PLN may be provided on the insulating layer BP. The aforementioned stacked structure of the thin film transistors T1 and T2 takes a top gate thin film transistor as an example, but the thin film transistors T1 and T2 may also be adjusted to be bottom gate thin film transistors as required, or the semiconductor layer material may also be adjusted as required.

[0046] The first light-emitting unit 1041 may be disposed on the flat layer PLN. The first light-emitting unit 1041 of the present embodiment may be, for example, an OLED, which may include a lower electrode BE1, a light-emitting material layer EL, and an upper electrode TE1, but is not limited thereto. The lower electrode BE1 may be disposed on the flat layer PLN and electrically connected to the drain DE of the thin film transistor T1. The lower electrode BE1 may be, for example, an anode of the first light-emitting unit 1041, but is not limited thereto. The light-emitting material layer EL may be disposed on the lower electrode BE1 and located in an opening of a pixel defining layer PDL. The light-emitting material layer EL may include an organic light-emitting material, but is not limited thereto. The upper electrode TE1 may be disposed on the light-emitting material layer EL and the pixel defining layer PDL, and the upper electrode TE1 may be, for example, a common cathode, electrically connected to a shared voltage signal source, but is not limited thereto.

[0047] The fingerprint sensor unit 108 may be disposed on the flat layer PLN and covered by the pixel definition layer PDL. Therefore, the first light emitting unit 1041 and the fingerprint sensor unit 108 are disposed on the same plane, but not limited thereto. The fingerprint sensor unit 108 may also be disposed on the insulating layer BP. The fingerprint sensor unit 108 of the present embodiment may include a PIN diode, or an inorganic or organic diode, but not limited thereto. The PIN diode may include a first semiconductor layer SM1, a second semiconductor layer SM2, and a third semiconductor layer SM3, wherein the third semiconductor layer SM3 is disposed on the first semiconductor layer SM1, and the second semiconductor layer SM2 is located between the first semiconductor layer SM1 and the third semiconductor layer SM3. The first semiconductor layer SM1 may be an N-type semiconductor layer, the second semiconductor layer SM2 may be an intrinsic layer, and the third semiconductor layer SM3 may be a P-type semiconductor layer, but not limited thereto. The first semiconductor layer SM1 may be a P-type semiconductor layer, and the third semiconductor layer SM3 may be an N-type semiconductor layer. In addition, the fingerprint sensor unit 108 further includes an upper electrode TE2 and a lower electrode BE2 located on the upper and lower sides of the PIN diode. The lower electrode BE2 may be disposed between the planar layer PLN and the first semiconductor layer SM1, and the lower electrode BE2 may be electrically connected to the drain DE of the thin film transistor T2. The upper electrode TE2 may be disposed between the third semiconductor layer SM3 and the pixel definition layer PDL, and may be electrically connected to a signal line TE3. In addition, an inorganic insulating layer IN1 may be disposed on the upper electrode TE1, an inorganic insulating layer IN2 may be disposed on the inorganic insulating layer IN1, and an organic insulating layer IN3 may be disposed between the inorganic insulating layer IN1 and the inorganic insulating layer IN2, but the present invention is not limited thereto.

[0048] For example, the material of the gate GE, the source SE, the drain DE and / or the bottom electrode BE1, BE2 may include metal (such as silver Ag, copper Cu or aluminum Al), metal oxide, other suitable conductive materials or combinations thereof, but not limited thereto. The material of the top electrode TE1, TE2 may include transparent conductive materials (such as indium tin oxide (ITO), indium zinc oxide (IZO), etc.), metal (such as silver Ag) or other suitable conductive materials or combinations thereof, but not limited thereto. The material of the buffer layer 122, the gate insulating layer GI, the interlayer dielectric layer ILD, the insulating layer BP, the planar layer PLN and / or the pixel definition layer PDL may include silicon oxide, silicon nitride, silicon oxynitride, other suitable insulating materials or combinations thereof, but not limited thereto. The material of the semiconductor layer SC may include polycrystalline silicon (polycrystalline silicon), amorphous silicon (amorphous silicon), metal oxide semiconductor (IGZO), other suitable semiconductor materials or combinations thereof, but not limited thereto. The material of the light shielding layer 124 may include metal or metal oxide, but not limited thereto.

[0049] The display device of the present invention is not limited to the above-mentioned embodiments, and other embodiments will be disclosed below. However, in order to simplify the description and highlight the differences between each embodiment and the above-mentioned embodiments, the same reference numerals are used below to mark the same elements, and the repeated parts will not be repeated.

[0050] Please refer to Figure 4 , which is a schematic diagram of a display device according to a second embodiment of the present invention. The difference from the first embodiment is that the second light-emitting unit 1043 of this embodiment can also extend to the fingerprint sensor circuit 110 along the second direction D2, so that the second light-emitting unit 1043 overlaps with at least another part of the fingerprint sensor circuit 110 in the top-view direction V, but the invention is not limited thereto. In this embodiment, the first light-emitting unit 1041 and the second light-emitting unit 1043 can extend to the fingerprint sensor circuit 110 by reducing the area of ​​the fingerprint sensor unit 108, but the invention is not limited thereto. In addition, the third light-emitting unit 1045 of this embodiment does not extend to the fingerprint sensor circuit 110, but the invention is not limited thereto. In this embodiment, the first light-emitting unit 1041 can emit blue light, the second light-emitting unit 1043 can emit red light, and the third light-emitting unit 1045 can emit green light, but the invention is not limited thereto. In addition, the overlapping area of ​​the second light-emitting unit 1043 and the fingerprint sensor circuit 110 can be smaller than the overlapping area of ​​the first light-emitting unit 1045 and the fingerprint sensor circuit 110, but the invention is not limited thereto. However, in some embodiments, the first light emitting unit 1041 may emit blue light, the second light emitting unit 1043 may emit green light, and the third light emitting unit 1045 may emit red light, but is not limited thereto.

[0051] Please refer to Figure 5, which is a schematic diagram of a display device according to a third embodiment of the present invention. The difference from the first embodiment is that the present embodiment reduces the area of ​​the first pixel circuit 1061 and increases the area of ​​the fingerprint sensor circuit 110, so that the area of ​​the first pixel circuit 1061 is smaller than the area of ​​the second pixel circuit 1063 and / or the area of ​​the third pixel circuit 1065. The area of ​​the pixel circuit or the fingerprint sensor circuit 110 can be adjusted by adjusting the number of thin film transistors included therein or the size (such as area) of the thin film transistors. For example, the first pixel circuit 1061 may include three to four thin film transistors, and the second pixel circuit 1063 and the third pixel circuit 1065 may include six to seven thin film transistors, but the present invention is not limited thereto. For example, the second pixel circuit 1063 and the third pixel circuit 1065 may include a compensation circuit, while the first pixel circuit 1061 may not include a compensation circuit and an external compensation circuit may be required, but the present invention is not limited thereto. Alternatively, the first pixel circuit 1061, the second pixel circuit 1063 and the third pixel circuit 1065 include the same number of thin film transistors, but the size of the thin film transistor in the first pixel circuit 1061 is smaller than the size of the thin film transistor in the second pixel circuit 1063 and the third pixel circuit 1065. In addition, the above method for adjusting the circuit size can be applied to the fingerprint sensor circuit 110 or other embodiments.

[0052] In some variations of the third embodiment, the difference from the third embodiment is that the area of ​​the second light-emitting unit 1043 and / or the third light-emitting unit 1045 can be reduced and the area of ​​the fingerprint sensor unit 108 can be increased, so that a portion of the fingerprint sensor unit 108 can extend along the second direction D2 onto the second pixel circuit 1063 and the third pixel circuit 1065 and partially overlap with the second pixel circuit 1063 and the third pixel circuit 1065, but is not limited to this.

[0053] Please refer to Figure 6 , which is a schematic diagram of a display device according to a fourth embodiment of the present invention. Different from the first embodiment, the area of ​​the first pixel circuit 1061 of this embodiment may be smaller than the area of ​​the second pixel circuit 1063 and the area of ​​the third pixel circuit 1065, and the area of ​​the fingerprint sensor circuit 110 may be smaller than the area of ​​the first pixel circuit 1061, but not limited thereto. For example, the first pixel circuit 1061 and the fingerprint sensor circuit 110 may be arranged on one side of the third pixel circuit 1065 in the first direction D1, and the fingerprint sensor circuit 110 may be arranged on one side of the first pixel circuit 1061 in the second direction D2, but not limited thereto. In addition, the fingerprint sensor unit 108 may partially overlap with at least one of the first pixel circuit 1061, the second pixel circuit 1063 and the third pixel circuit 1065. Figure 6For example, the fingerprint sensor unit 108 may partially overlap with the first pixel circuit 1061 , the second pixel circuit 1063 , and the third pixel circuit 1065 , but the present invention is not limited thereto.

[0054] In some embodiments, different from the fourth embodiment, the area of ​​the second pixel circuit 1063 and the area of ​​the third pixel circuit 1065 may be smaller than the area of ​​the first pixel circuit 1061, but the present invention is not limited thereto. For example, the second pixel circuit 1063, the third pixel circuit 1065 and the fingerprint sensor circuit 110 may be disposed on one side of the first pixel circuit 1061 in the first direction D1, and the fingerprint sensor circuit 110 may be disposed on one side of the second pixel circuit 1063 and the third pixel circuit 1065 in the second direction D2, but the present invention is not limited thereto.

[0055] Please refer to Figure 7 , which is a schematic diagram of a display device according to a fifth embodiment of the present invention. The difference from the first embodiment is that the first pixel circuit 1061, the second pixel circuit 1063, the third pixel circuit 1065 and the fingerprint sensor circuit 110 of this embodiment can be arranged side by side along the first direction D1, and the first pixel circuit 1061 can be arranged between the third pixel circuit 1065 and the fingerprint sensor circuit 110, but the present invention is not limited thereto. In addition, the fingerprint sensor unit 108 can extend from the fingerprint sensor circuit 110 to the second pixel circuit 1063 and cross the first pixel circuit 1061 and the third pixel circuit 1065, but the present invention is not limited thereto.

[0056] Please refer to Figure 8 and Fig. 9 , Figure 8 FIG. 2 is a schematic diagram of a display device according to a sixth embodiment of the present invention. Fig. 9 Shown along Figure 8 In order to make the accompanying drawings more simplified and easy to understand, Fig. 9 Only three thin film transistors T1a, T1b, T1c in the first pixel circuit 1061 and one thin film transistor T2 in the fingerprint sensor circuit 110 are shown as examples. The number of thin film transistors in the first pixel circuit 1061 and the fingerprint sensor circuit 110 is not limited to the number of thin film transistors in the first pixel circuit 1061 and the fingerprint sensor circuit 110. Fig. 9 The following are the limits. Figure 8 As shown, the difference from the first embodiment is that the fingerprint sensor circuit 110 of this embodiment can overlap with a part of the first pixel circuit 1061 in the top view direction V. Fig. 9For example, in the top view direction V, the thin film transistor T2 of the fingerprint sensor circuit 110 is disposed between the fingerprint sensor unit 108 and the thin film transistor T1c of the first pixel circuit 1061. The thin film transistor T2 (or the fingerprint sensor circuit 110) and the thin film transistors T1a, T1b, T1c (or the first pixel circuit 1061) of this embodiment can be disposed on different planes. For example, the thin film transistors T1a, T1b, T1c can be disposed on the buffer layer 122, and the thin film transistor T2 can be disposed on the insulating layer BP, but the present invention is not limited thereto. Since the thin film transistor T2 and the thin film transistors T1a, T1b, T1c are disposed on different planes, the display device 100 of this embodiment further includes a gate insulating layer GI2 and an insulating layer BP2. The gate insulating layer GI2 can be disposed between the gate GE of the thin film transistor T2 and the semiconductor layer SC, and the insulating layer BP2 can be disposed between the gate insulating layer GI2 and the planar layer PLN and cover the source SE and drain DE of the thin film transistor T2, but the present invention is not limited thereto. In the present embodiment, the thin film transistors T1a, T1b, and T1c may be top-gate thin film transistors and the thin film transistor T2 may be a bottom-gate thin film transistor, but the present invention is not limited thereto.

[0057] Please refer to Fig.10 , which is a schematic diagram of a display device according to a seventh embodiment of the present invention. The difference from the first embodiment is that the display device 100 of this embodiment may include a plurality of sub-pixel columns SPC1 and a plurality of sub-pixel columns SPC2, and the sub-pixel columns SPC1 and the sub-pixel columns SPC2 may be arranged alternately along the first direction D1, but not limited thereto. Each sub-pixel column SPC1 may include a plurality of first light-emitting units 1041, a plurality of first pixel circuits 1061, a plurality of second light-emitting units 1043, a plurality of second pixel circuits 1063, a plurality of fingerprint sensor units 108, and a plurality of fingerprint sensor circuits 110. In the second direction D2, the first light-emitting units 1041 and the second light-emitting units 1043 may be arranged alternately, and one fingerprint sensor unit 108 may be disposed between one first light-emitting unit 1041 and one second light-emitting unit 1043, but not limited thereto. In the first direction D1, the first light-emitting units 1041 and the second light-emitting units 1043 in the same row may also be arranged alternately. In addition, in the second direction D2, the first pixel circuits 1061 and the second pixel circuits 1063 may be arranged alternately, and one fingerprint sensor circuit 110 may be disposed between one first pixel circuit 1061 and one second pixel circuit 1063, but the present invention is not limited thereto. Each first light emitting unit 1041 and each second light emitting unit 1043 may overlap at least a portion of one fingerprint sensor circuit 110 in the top-view direction V, and each fingerprint sensor unit 108 may overlap at least a portion of one first pixel circuit 1061 or one second pixel circuit 1063 in the top-view direction V, but the present invention is not limited thereto.

[0058] Each sub-pixel column SPC2 may include a plurality of third light-emitting units 1045 and a plurality of third pixel circuits 1065 arranged along the second direction D2. In the first direction D1, the third light-emitting unit 1045 may be disposed between two fingerprint sensor units 108, and each third pixel circuit 1065 may be disposed between a first pixel circuit 1061 and a second pixel circuit 1063 and between two fingerprint sensor circuits 110, but the present invention is not limited thereto. The area of ​​the third pixel circuit 1065 is greater than the area of ​​the first pixel circuit 1061 and / or the second pixel circuit 1063, but the present invention is not limited thereto. In the present embodiment, the shape of the third light-emitting unit 1045 and the fingerprint sensor unit 108 may be a rectangle (the edges may have chamfers), and the shape of the first light-emitting unit 1041 and the second light-emitting unit 1043 may be a rhombus (the edges may have chamfers), but the present invention is not limited thereto.

[0059] Please refer to Fig.11 , which is a schematic diagram of a display device according to an eighth embodiment of the present invention. The difference from the seventh embodiment is that a plurality of fingerprint sensor units 108 and a plurality of fingerprint sensor circuits 110 in this embodiment are arranged in a sub-pixel column SPC2. One fingerprint sensor unit 108 may be arranged between two adjacent third light-emitting units 1045 in the second direction D2, and may be arranged between a first light-emitting unit 1041 and a second light-emitting unit 1043 in the first direction D1, but the present invention is not limited thereto. One fingerprint sensor circuit 110 may be arranged between two adjacent third pixel circuits 1065 in the second direction D2, and may be arranged between a first pixel circuit 1061 and a second pixel circuit 1063 in the first direction D1, but the present invention is not limited thereto. Therefore, in this embodiment, the area of ​​the third pixel circuit 1065 is smaller than the area of ​​the first pixel circuit 1061 and / or the second pixel circuit 1063, but the present invention is not limited thereto. In addition, a third light emitting unit 1045 may overlap with at least a portion of a fingerprint sensor circuit 110 in the top-view direction V, and a fingerprint sensor unit 108 may overlap with at least a portion of a third pixel circuit 1065 in the top-view direction V, but the present invention is not limited thereto.

[0060] In this embodiment, the shape of the fingerprint sensor unit 108 may be an "X" shape (the edge may have a chamfer), but is not limited thereto. In some variations of the eighth embodiment, the shape of the fingerprint sensor unit 108 may be a frame shape, and each fingerprint sensor unit 108 may surround a third light-emitting unit 1045. In addition, each fingerprint sensor unit 108 may be disposed between the third light-emitting unit 1045 and the first light-emitting unit 1041 adjacent thereto, and between the third light-emitting unit 1045 and the second light-emitting unit 1043 adjacent thereto, but is not limited thereto. In some variations of the eighth embodiment, the shape of the fingerprint sensor unit 108 may be a frame shape (the edge may have a chamfer), but is not limited thereto.

[0061] Please refer to Fig.12 , which is a schematic diagram of a display device according to a ninth embodiment of the present invention. The difference from the seventh embodiment is that a plurality of fingerprint sensor units 108 and a plurality of fingerprint sensor circuits 110 of this embodiment are arranged in the sub-pixel column SPC2, and the fingerprint sensor unit 108 replaces the position of some third light-emitting units 1045 in the seventh embodiment. For example, one fingerprint sensor unit 108 may be arranged between two adjacent first light-emitting units 1041, between two adjacent second light-emitting units 1043, and between two adjacent third light-emitting units 1045. In addition, in the second direction D2, one fingerprint sensor unit 108 may be arranged between a group S11 of the first light-emitting unit 1041, the second light-emitting unit 1043, and the third light-emitting unit 1045 and another group S12 of the first light-emitting unit 1041, the second light-emitting unit 1043, and the third light-emitting unit 1045. Another difference from the seventh embodiment is that the density of the fingerprint sensor unit 108 of this embodiment is relatively small, but the area is relatively large, but it is not limited thereto. In addition, since the fingerprint sensor circuit 110 of this embodiment is disposed in the sub-pixel column SPC2 along with the fingerprint sensor unit 108, the area of ​​some third pixel circuits 1065 is smaller than the area of ​​the first pixel circuit 1061 and / or the second pixel circuit 1063, but the present invention is not limited thereto.

[0062] In summary, the display device of the present invention integrates the fingerprint sensor unit and the fingerprint sensor circuit into the display area, and the method can be to integrate multiple fingerprint sensor units and multiple fingerprint sensor circuits into multiple pixel units, so that one pixel unit can include sub-pixels emitting different colors and fingerprint sensors. Under this design, the display device can have a high density of fingerprint sensor units and can provide a highly sensitive fingerprint sensing function, while maintaining a high resolution of the display screen. In addition, under this design, within a pixel unit, there will be at least one sub-pixel whose light-emitting unit overlaps with at least a portion of the fingerprint sensor circuit in the top view direction.

[0063] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways, and the different features between the embodiments may be arbitrarily arranged and combined as long as they do not conflict or violate the spirit of the invention, depending on the design requirements. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A display device, characterized in that: include: a substrate; A plurality of pixel circuits are arranged on the substrate; a first light emitting unit, disposed on the substrate and driven by one of the plurality of pixel circuits; a second light emitting unit, disposed on the substrate and driven by another one of the plurality of pixel circuits; a fingerprint sensor circuit disposed on the substrate; and a fingerprint sensor unit, disposed on the substrate and driven by the fingerprint sensor circuit; Wherein, in a top-view direction of the display device, a portion of the fingerprint sensor circuit overlaps the first light-emitting unit, and another portion of the fingerprint sensor circuit overlaps the second light-emitting unit, and an area where the fingerprint sensor circuit overlaps the first light-emitting unit is larger than an area where the fingerprint sensor circuit overlaps the second light-emitting unit.

2. The display device according to claim 1, characterized in that The first light emitting unit emits blue light.

3. The display device according to claim 1, characterized in that A ratio of an area of ​​the fingerprint sensor unit to an area of ​​the first light emitting unit is 0.1 to 1.

4. The display device according to claim 1, characterized in that The first light emitting unit and the second light emitting unit emit light of different colors.

5. The display device according to claim 4, characterized in that The first light emitting unit emits blue light, and the second light emitting unit emits red light.

6. The display device according to claim 4, characterized in that The first light emitting unit emits blue light, and the second light emitting unit emits green light.

7. The display device according to claim 1, characterized in that The first light emitting unit emits green light.

8. The display device according to claim 1, characterized in that The pixel circuit and the fingerprint sensor circuit are electrically connected to the same scan line.

9. An electronic device, characterized in that: The electronic device comprises: A display device, comprising: a substrate; A plurality of pixel circuits are arranged on the substrate; a first light emitting unit, disposed on the substrate and driven by one of the plurality of pixel circuits; a second light emitting unit, disposed on the substrate and driven by another one of the plurality of pixel circuits; a sensor circuit disposed on the substrate; and a sensor unit, disposed on the substrate and driven by the sensor circuit; Wherein, in a top-view direction of the display device, a portion of the sensor circuit overlaps the first light-emitting unit, and another portion of the sensor circuit overlaps the second light-emitting unit, and an area where the sensor circuit overlaps the first light-emitting unit is larger than an area where the sensor circuit overlaps the second light-emitting unit.

10. The electronic device according to claim 9, characterized in that: The first light emitting unit emits blue light.

11. The electronic device according to claim 9, characterized in that: A ratio of an area of ​​the sensor unit to an area of ​​the first light emitting unit is greater than or equal to 0.1 and less than or equal to 1.

12. The electronic device according to claim 9, characterized in that: The first light emitting unit and the second light emitting unit emit light of different colors.

13. The electronic device according to claim 12, characterized in that: The first light emitting unit emits blue light, and the second light emitting unit emits red light.

14. The electronic device according to claim 12, characterized in that: The first light emitting unit emits blue light, and the second light emitting unit emits green light.

15. The electronic device according to claim 9, characterized in that: The first light emitting unit emits green light.

16. The electronic device according to claim 9, characterized in that: The pixel circuit for driving the first light emitting unit and the sensor circuit are electrically connected to the same scan line.

Citation Information

Patent Citations

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