Display Devices

Abstract

The present disclosure relates to a display device having a display area, wherein the display device comprises: a substrate; a driving layer disposed on the substrate; a display medium layer disposed on the driving layer; and a sensor disposed under the substrate, wherein in a normal direction of the display device, the sensor overlaps with the display area.

Description

[0001] The present disclosure is a divisional application. The parent application number is 201910037642.1. The application date is January 11, 2019. The name of the invention is: Display device. Technical Field

[0002] The present disclosure relates to a display device, and more particularly to a display device having a sensor. Background Art

[0003] As the technology of electronic devices advances, electronic devices are developing towards more functions and thinner and lighter. For example, the mainstream of the current display device market is thin display devices.

[0004] Display devices nowadays need to have not only display functions, but also other functions such as touch or recognition. In addition, in order to manufacture display devices with a high screen-to-body ratio, external sensors must be embedded in the display area of ​​the display device. Therefore, how to integrate display devices and sensors without reducing the accuracy or resolution of the sensors and without affecting the functions of the display devices will be a problem to be solved. Summary of the invention

[0005] The present disclosure provides a display device having a display area, wherein the display device includes: a substrate; a driving layer disposed on the substrate; a display medium layer disposed on the driving layer; and a sensor disposed under the substrate, wherein in a normal direction of the display device, the sensor overlaps with the display area.

[0006] Other novel technical features will be described in detail below with reference to the accompanying drawings to clearly illustrate the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a top view of the display device of Example 1 of the present disclosure.

[0008] Figure 2 It is a cross-sectional view of the display device of Example 1 of the present disclosure.

[0009] Figure 3 It is a cross-sectional view of a display device according to Embodiment 2 of the present disclosure.

[0010] Figure 4 It is a cross-sectional view of the display device of Example 3 of the present disclosure.

[0011] Figure 5 It is a cross-sectional view of a display device according to Embodiment 4 of the present disclosure.

[0012] Figure 6 It is a cross-sectional view of the display device of Example 5 of the present disclosure.

[0013] Figure 7It is a cross-sectional view of the display device of Example 6 of the present disclosure.

[0014] Figure 8 It is a cross-sectional view of the display device of Example 7 of the present disclosure.

[0015] Fig. 9 It is a cross-sectional view of the display device of Example 8 of the present disclosure.

[0016] Fig.10 It is a cross-sectional view of the display device of Example 9 of the present disclosure.

[0017] Fig.11 It is a cross-sectional view of the display device of Example 10 of the present disclosure.

[0018] Fig.12 It is a cross-sectional view of the display device of Example 11 of the present disclosure.

[0019] Fig.13 A cross-sectional view of a display device where the sensor and support do not overlap.

[0020] Fig.14 A cross-sectional view of a display device showing the overlap of the sensor and the support.

[0021]

Explanation of symbols

[0022] Driver layer 11

[0023] Substrate 111

[0024] The first semiconductor layer 113

[0025] Gate insulating layer 114

[0026] The first gate layer 115

[0027] First source-drain layer 116

[0028] Insulation layer 117

[0029] Passivation layer 118

[0030] The first passivation layer 1181

[0031] The second passivation layer 1182

[0032] The third passivation layer 1183

[0033] Passivation layer 119

[0034] Display medium layer 12

[0035] First electrode 121

[0036] Light-emitting layer 122

[0037] The second electrode 123

[0038] Pixel Definition Layer 13

[0039] Support 14

[0040] Main body 14a

[0041] Bottom 14b

[0042] The first alignment layer 151

[0043] The second alignment film 152

[0044] Encapsulation layer 17

[0045] Sensor 2

[0046] The second semiconductor layer 211

[0047] The second gate layer 212

[0048] Second source-drain layer 213

[0049] Second light shielding layer 214

[0050] Touch sensing layer 3

[0051] The first touch electrode 31

[0052] The second touch electrode 32

[0053] First insulating layer 33

[0054] Second insulating layer 34

[0055] Opposite substrate 411

[0056] Surface 411a

[0057] The first light shielding layer 412

[0058] Opening 4121

[0059] Filter layer 413

[0060] Covering layer 414

[0061] Functional layer 5

[0062] Protective substrate 6

[0063] Display Area AA

[0064] Non-display area NON-AA

[0065] Luminous area E

[0066] Sensing area S DETAILED DESCRIPTION

[0067] The following describes the implementation methods of the present disclosure with reference to the accompanying drawings to clearly explain the aforementioned and other technical contents, features, and effects. Through the description of specific embodiments, those skilled in the art can further understand the technical means and effects adopted by the present disclosure to achieve the aforementioned disclosure purposes. In addition, the technology disclosed in this specification can be understood and implemented by those skilled in the art, and any substantially the same changes or improvements can be covered by the claims without departing from the concept of the present disclosure.

[0068] In addition, ordinal numbers such as "first", "second", etc. mentioned in this specification and claims are only used to describe the claimed components; they do not mean or indicate any execution order of the claimed components, nor the order between one claimed component and another claimed component, or the order of steps in a process method. The use of these ordinals is only used to make a claimed component with a certain name clearly distinguishable from another claimed component with the same name.

[0069] In addition, positions mentioned in this specification and claims, such as "on", "upper", or "above", may refer to direct contact with another component, or may refer to indirect contact with another component. Furthermore, positions mentioned in this specification and claims, such as "under", "lower", or "below", may refer to direct contact with another component, or may refer to indirect contact with another component.

[0070] Furthermore, the technical features of different embodiments of the present disclosure may be combined with each other to form another embodiment.

[0071] Example 1

[0072] Figure 1 1 is a top view of the display device of this embodiment, revealing a portion of the display area of ​​the display device. The display device of this embodiment has a non-display area NON-AA and a display area AA, and the display area AA includes: a support member 14, which is disposed in the display area AA; and a plurality of sensors 2, which are disposed in the display area AA. Here, the plurality of sensors 2 are disposed in a portion of the display area AA (close to Figure 1 However, the installation positions of these sensors are not limited to Figure 1 In another embodiment of the present disclosure, the sensors 2 may be disposed in a portion of the display area AA of the display device or in the entire display area AA. In a further embodiment of the present disclosure, the sensors 2 may be disposed randomly or evenly in the display area AA of the display device.

[0073] like Figure 1 As shown, the sensors 2 do not overlap with the support member 14 in the normal direction of the display device. Here, the normal direction of the display device is perpendicular to the surface of a substrate 111.

[0074] Figure 2is a cross-sectional view of the display device of this embodiment, along Figure 1 To simplify the drawings, Figure 2 The touch electrodes 31 , 32 are not disclosed.

[0075] like Figure 2 As shown, the display device of this embodiment is an organic light emitting diode (OLED) display device. The display device of this embodiment includes: a substrate 111; a driving layer 11 disposed on the substrate 111; a display medium layer 12 disposed on the driving layer 11; and a support member 14 disposed on the display medium layer 12.

[0076] In detail, the display device of the present embodiment includes: a substrate 111; a buffer layer 112, disposed on the substrate 111; a first semiconductor layer 113, disposed on the buffer layer 112; a gate insulating layer 114, disposed on the first semiconductor layer 113; a first gate layer 115, disposed on the gate insulating layer 114 and corresponding to the first semiconductor layer 113; an insulating layer 117, disposed on the first gate layer 115; a first source-drain layer 116, disposed on the insulating layer 117 and electrically connected to the first semiconductor layer 113; and a passivation layer 118, disposed on the first source-drain layer 116. The first semiconductor layer 113, the first gate layer 115, and the first source-drain layer 116 form a transistor TFT. In the present embodiment, the driving layer 11 includes: the first semiconductor layer 113, the gate insulating layer 114, the first gate layer 115, the first source-drain layer 116, the insulating layer 117, and the passivation layer 118. However, the structure of the transistor TFT and the driving layer 11 disclosed in the present invention is not limited to Figure 2 For example, in this embodiment, the transistor TFT is a top gate transistor; however, in another embodiment of the present disclosure, the transistor TFT may be a bottom gate transistor or a double gate or dual gate transistor.

[0077] In this embodiment, a sensor 2 is formed simultaneously when the driving layer 11 is formed. The sensor 2 of the present disclosure has a transistor structure, including: a second semiconductor layer 211; a second gate layer 212 corresponding to the second semiconductor layer 211; and a second source-drain layer 213 electrically connected to the second semiconductor layer 211. Therefore, in this embodiment, the sensor 2 is disposed on the substrate 111 and is adjacent to the transistor TFT. In this embodiment, the sensor 2 is a top gate transistor. In another embodiment of the present disclosure, the sensor 2 may be a bottom gate transistor or a double gate transistor. In a further embodiment of the present disclosure, the sensor 2 is not a transistor, but may have other structures (for example, a photodiode), as long as the purpose of signal sensing can be achieved. Examples of the sensor 2 may be biometric sensors such as fingerprint sensors, iris sensors, retinal sensors, face recognizers, blood vessel sensors, acoustic sensors, motion sensors, gesture sensors, or DNA sensors; but the present disclosure is not limited thereto.

[0078] Here, the substrate 111 may be a quartz substrate, a glass substrate, a plastic substrate, or other flexible substrates or films. If the substrate 111 is a plastic substrate or other flexible substrate or film, a flexible display device can be obtained. In addition, the materials of the buffer layer 112 and the gate insulating layer 114 may be silicon oxide, silicon oxynitride, silicon nitride, or a combination thereof. Further, the materials of the first gate layer 115, the first source-drain layer 116, the second gate layer 212, and the second source-drain layer 213 may be metals (e.g., copper (Cu), aluminum (Al), titanium (Ti), chromium (Cr), molybdenum (Mo), or alloys thereof, or a combination of the foregoing materials) or other electrode materials. Furthermore, the materials of the first semiconductor layer 113 and the second semiconductor layer 211 may be amorphous silicon, polycrystalline silicon such as low temperature polycrystalline silicon (LTPS), or oxide semiconductors such as indium gallium zinc oxide (IGZO), respectively. However, the present disclosure is not limited thereto.

[0079] like Figure 2 As shown, a passivation layer 118 is disposed on the first source-drain electrode layer 116. The material of the passivation layer 118 may be, for example, silicon oxide, silicon oxynitride, silicon nitride, aluminum oxide, resin, polymer, photoresist material, or a combination thereof; but the present disclosure is not limited thereto.

[0080] Furthermore, a display medium layer 12 is formed on the passivation layer 118. In this embodiment, the display medium layer 12 may be a self-luminous layer, such as an organic light emitting diode. The organic light emitting diode includes: a first electrode 121, a light emitting layer 122 and a second electrode 123. Among them, the first electrode 121 is electrically connected to the transistor TFT. A pixel definition layer 13 is disposed on the first electrode 121 and has an opening to expose the first electrode 121. The light emitting layer 122 is disposed in the opening and electrically connected to the first electrode 121. The second electrode 123 is disposed on the pixel definition layer 13 and electrically connected to the light emitting layer 122 through the opening. The opening of the pixel definition layer 13 defines a light emitting area E of the OLED. A support member 14 is disposed on the pixel definition layer 13. The support member 14 does not overlap with the light emitting area E in the normal direction of the substrate 111. Here, the first electrode 121 is a reflective electrode, and the material of the reflective electrode may be silver (Ag), aluminum (Al), or other materials with high light reflection properties. The second electrode 123 is a transparent electrode, and the material of the transparent electrode may be a transparent conductive oxide, such as indium tin oxide (ITO), indium zinc oxide (IZO), indium zinc tin oxide (ITZO), copper gallium zinc oxide (IGZO), or aluminum zinc oxide (AZO), but the present disclosure is not limited thereto.

[0081] In addition, a support member 14 is disposed on the pixel definition layer 13. The material of the support member 14 can be resin, polymer, photoresist material, or a combination thereof; but the present disclosure is not limited thereto.

[0082] like Figure 1 and Figure 2 As shown, in the display device of this embodiment, the sensor 2 does not overlap with the support member 14 in the normal direction, which is perpendicular to the surface of the substrate 111. In particular, the sensor 2 includes a sensing area S, and the support member 14 does not overlap with the sensing area S in the normal direction.

[0083] If the support 14 overlaps the sensor 2, the support 14 may affect or change the incident light path from the upper side of the display device to the sensor 2 and reduce the resolution of the sensor 2. Therefore, in this embodiment, the sensor 2 does not overlap with the support 14 to solve the above problem.

[0084] like Figure 1 As shown, in this embodiment, the display area AA includes a plurality of light-emitting areas E, and the sensor does not overlap with the light-emitting area E in the normal direction. Figure 2As shown, in the OLED display device of this embodiment, the display medium layer 12 includes an OLED, wherein the first electrode 121 in the OLED is a reflective electrode, and the sensor 2 (specifically, the sensing area S) does not overlap with the first electrode 121 in the normal direction. Because the first electrode 121 is a reflective electrode, if the sensor 2 overlaps with the first electrode 121 in the normal direction, the signal detected by the sensor 2 will be reduced due to the obstruction of the first electrode 121.

[0085] Example 2

[0086] Figure 3 is a cross-sectional view of a display device of Example 2. The display device of this embodiment is similar to the display device of Example 1, except that the display device of this embodiment is a liquid crystal (LCD) display device.

[0087] like Figure 3 As shown, the driving layer 11 and the sensor 2 of this embodiment are similar to those shown in the embodiment 1, and thus will not be repeated here.

[0088] like Figure 3 As shown, the driving layer 11 is disposed on the substrate 111, and a first passivation layer 1181 is disposed on the first source-drain layer 116. The display device of this embodiment further includes: a first electrode 121, disposed on the first passivation layer 1181; a second passivation layer 1182, disposed on the first electrode 121; a second electrode 123, disposed on the second passivation layer 1182; and a third passivation layer 1183, disposed on the second electrode 123. In this embodiment, the second electrode 123 is electrically connected to the transistor TFT. In this embodiment, the first electrode 121 and the second electrode 123 form an electric field to drive the display function of the wide viewing angle (FFS) liquid crystal display device. In another embodiment of the present disclosure, the first electrode 121, rather than the second electrode 123, is electrically connected to the transistor TFT. In addition, in this embodiment, the LCD device is homogenously aligned. In another embodiment of the present disclosure, the display device may be a vertically aligned LCD device, wherein the second electrode 123 is disposed on a counter substrate 411 .

[0089] Here, the materials of the first passivation layer 1181, the second passivation layer 1182, and the third passivation layer 1183 may be, for example, silicon oxide, silicon oxynitride, silicon nitride, aluminum oxide, resin, polymer, photoresist, or a combination thereof. In addition, the first electrode 121 and / or the second electrode 123 are transparent electrodes, and the material of the transparent electrode may be a transparent conductive oxide, such as ITO, IZO, ITZO, IGZO, or AZO. However, the present disclosure is not limited thereto.

[0090] like Figure 3As shown, the display device of this embodiment includes: a counter substrate 411 having a surface 411a facing the substrate 111; a first light shielding layer 412 disposed on the surface 411a of the counter substrate 411, wherein the first light shielding layer 412 has a plurality of openings; a color filter layer 413 disposed in the openings of the first light shielding layer 412; and a cover layer 414 disposed on the color filter layer 413. Each opening of the first light shielding layer 412 defines a light emitting area E. The first light shielding layer 412 can be a black matrix, and the material of the cover layer 414 can be a resin, a polymer, a photoresist material, or a combination thereof.

[0091] In addition, a first alignment layer 151 is disposed on the third passivation layer 1183 of the substrate 111, and a second alignment layer 152 is disposed on the cover layer 414 of the opposite substrate 411. After the two are assembled, the support member 14 and the display medium layer 12 are disposed between the first alignment layer 151 and the second alignment film 152. Here, the display medium layer 12 is a liquid crystal layer.

[0092] Similar to the first embodiment, the sensor 2 of the display device of the present embodiment does not overlap with the light-emitting area E in the normal direction of the substrate 111. The support member 14 does not overlap with the light-emitting area E in the normal direction of the substrate 111. Therefore, the aperture ratio of the display device is not affected by the sensor 2. In addition, since the sensor 2 is disposed under the first light shielding layer 412, the sensor 2 can receive near-infrared light, infrared light signals, or other signals, while visible light can be shielded by the first light shielding layer 412.

[0093] Example 3

[0094] Figure 4 is a cross-sectional view of the display device of this embodiment. The display device of this embodiment is similar to the display device of Embodiment 2, and the difference lies in the position of the sensor.

[0095] In this embodiment, the sensor 2 of the display device overlaps with the light-emitting area E in the normal direction of the substrate 111. Therefore, the sensor 2 can receive visible light, near-infrared light, infrared light signals, or other signals. In one embodiment, the sensor 2 can be set corresponding to the color filter layer 413 of the red or green resin, and the color filter layer 413 can reduce the interference caused by the incident light of some bands being received by the sensor 2; but the present disclosure is not limited to this.

[0096] Example 4

[0097] Figure 5 2 is a cross-sectional view of the display device of this embodiment. The display device of this embodiment is similar to the display device of Embodiment 2, and the differences are described as follows.

[0098] In this embodiment, the first light shielding layer 412 has an opening 4121. The sensor 2 overlaps with the opening 4121 in the normal direction, but the support member 14 does not overlap with the opening 4121 in the normal direction. In addition, the sensor 2 includes a sensing area S, the opening 4121 overlaps with the sensing area S in the normal direction, and the support member 14 does not overlap with the sensing area S in the normal direction. If the first light shielding layer 412 has the opening 4121, visible light can be irradiated to the sensor 2. The sensor 2 can receive visible light, near infrared light, infrared light signals, or other signals.

[0099] In addition, in Embodiment 2, the structure of the sensor 2 is a transistor with a top gate structure. In this embodiment, the structure of the sensor 2 is a transistor with a bottom gate structure.

[0100] Furthermore, the display device of this embodiment further includes: a second light shielding layer 214, which is disposed between the sensor 2 and the substrate 111, wherein the second light shielding layer 214 overlaps with the opening 4121 in the normal direction to shield the light emitted by the backlight from passing through the opening 4121 to generate a light spot. Alternatively, the second light shielding layer 214 overlaps with the sensing area S in the normal direction to reduce the light emitted by the backlight from irradiating the sensing area S and generating noise.

[0101] Example 5

[0102] Figure 6 2 is a cross-sectional view of the display device of this embodiment. The display device of this embodiment is similar to the display device of Embodiment 2, and the differences are described as follows.

[0103] like Figure 6 As shown, the driving layer 11 and the sensor 2 of this embodiment are similar to those shown in Embodiment 2, so they will not be repeated.

[0104] like Figure 6 As shown, a first passivation layer 1181 is disposed on the first source-drain electrode layer 116. A color filter layer 413 is disposed on the first passivation layer 1181. A passivation layer 119 is disposed on the color filter layer 413. A first electrode 121 is disposed on the passivation layer 119. A second passivation layer 1182 is disposed on the first electrode 121. A second electrode 123 is disposed on the second passivation layer 1182 and is electrically connected to the transistor TFT. Here, the material of the passivation layer 119 may be, for example, a resin, a polymer, a photoresist material, or a combination thereof; but the present disclosure is not limited thereto.

[0105] Therefore, in this embodiment, the color filter layer 413 is not disposed on the opposite substrate 411, but is disposed on the substrate 111 on which the transistor TFT is formed. Therefore, the display device of this embodiment is a color filter layer on array (COA) liquid crystal display device.

[0106] Example 6

[0107] Figure 7 2 is a cross-sectional view of the display device of this embodiment. The display device of this embodiment is similar to the display device of Embodiment 5, and the differences are described as follows.

[0108] In this embodiment, a first light shielding layer 412 is disposed between the first passivation layer 1181 and the passivation layer 119. Therefore, the first light shielding layer 412 is not disposed on the opposite substrate 411, but is disposed on the substrate 111 on which the transistor TFT is formed. Therefore, the display device of this embodiment is a black matrix layer on array (BOA) liquid crystal display device.

[0109] The above embodiments only disclose the relative position between the support member and the sensor. The following embodiments disclose the relative position between the sensor and the touch electrode.

[0110] Example 7

[0111] Figure 8 is a cross-sectional view of the display device of this embodiment, wherein Figure 1 The OLED display device disclosed in Example 1 is described in this example.

[0112] In this embodiment, a packaging layer 17 is disposed on the display medium layer 12 and the pixel definition layer 13. The material of the packaging layer 17 can be resin, polymer, photoresist material, or a combination thereof; but the present disclosure is not limited thereto.

[0113] like Figure 8 As shown, the display device of this embodiment further includes: a first touch electrode 31, which is disposed on the encapsulation layer 17; a first insulating layer 33, which is disposed on the first touch electrode 31; a second touch electrode 32, which is disposed on the first insulating layer 33; and a second insulating layer 34, which is disposed on the second touch electrode 32. Here, the materials of the first insulating layer 33 and the second insulating layer 34 may be, for example, silicon oxide, silicon oxynitride, silicon nitride, aluminum oxide, resin, polymer, photoresist material, or a combination thereof; but the present disclosure is not limited thereto. The materials of the first touch electrode 31 and the second touch electrode 32 may be metal (especially, opaque conductive metal), such as copper (Cu) or silver (Ag); but the present disclosure is not limited thereto. Here, the first touch electrode 31 may be a driving electrode (Tx), and the second touch electrode 32 may be a sensing electrode (Rx); and vice versa.

[0114] like Figure 1 and Figure 8As shown, the first touch electrode 31 and the second touch electrode 32 are disposed in the display area AA of the display device. If the material of the first touch electrode 31 and the second touch electrode 32 is metal, the incident light from the upper side of the display device can be shielded by the first touch electrode 31 and the second touch electrode 32. The arrangement of the sensor 2 should try to avoid overlapping with the first touch electrode 31 and the second touch electrode 32 in the normal direction of the substrate 111 to improve the sensing resolution.

[0115] In addition, if Figure 2 and Figure 8 As shown, the driving layer 11 includes: a transistor TFT, and the sensor 2 is disposed on the substrate 111 and adjacent to the transistor TFT.

[0116] Example 8

[0117] Fig. 9 is a cross-sectional view of the display device of this embodiment. The display device of this embodiment is similar to the display device of Embodiment 7, and the difference lies in the position of the sensor.

[0118] In this embodiment, the display device further includes: a touch sensing layer 3, which is disposed on the display medium layer 12, wherein the touch sensing layer 3 includes a first touch electrode 31 and a second touch electrode 32, and the sensor 2 is disposed on the display medium layer 12 and adjacent to the first touch electrode 31. In another embodiment of the present disclosure, the sensor may be adjacent to the second touch electrode 32.

[0119] Example 9

[0120] Fig.10 is a cross-sectional view of the display device of this embodiment. The display device of this embodiment is similar to the display device of Embodiment 7, and the difference lies in the position of the sensor.

[0121] In this embodiment, the display device further includes: a touch sensing layer 3, disposed on the display medium layer 12; and a protective substrate 6, disposed on the touch sensing layer 3; wherein the sensor 2 is disposed between the touch sensing layer 3 and the protective substrate 6. Here, the protective substrate 6 can be a cover glass, a polarizing plate or other film layer, but the present disclosure is not limited thereto.

[0122] In particular, in this embodiment, the display device further includes: a functional layer 5, disposed between the touch sensing layer 3 and the protective substrate 6, wherein the sensor 2 is disposed in the functional layer 5. Examples of the functional layer 5 may include: optically transparent adhesive, tape or other adhesive materials, polarizing plate, anti-glare film or other film layer, etc.; but the present disclosure is not limited thereto.

[0123] Example 10

[0124] Fig.11is a cross-sectional view of the display device of this embodiment. The display device of this embodiment is similar to the display device of Embodiment 7, and the difference lies in the position of the sensor.

[0125] In this embodiment, the sensor 2 is disposed under the substrate 111. In other words, the sensor 2 is disposed on a surface of the substrate 111, which is the other surface of the substrate 111 adjacent to the display medium layer 12, that is, the surface of the substrate 111 farther from the display medium layer 12.

[0126] like Figures 8 to 11 As shown, in embodiments 7 to 10, the sensor 2 does not overlap with the first touch electrode 31 , the second touch electrode 32 , and the light emitting area E.

[0127] Embodiment 11

[0128] Fig.12 is a cross-sectional view of the display device of this embodiment. The display device of this embodiment is similar to the display device of Embodiment 7, and the difference lies in the type of touch electrodes.

[0129] In this embodiment, the display device further includes: a first touch electrode 31 and a second touch electrode 32, which are disposed in the display area AA of the display device, wherein the first touch electrode 31 and the second touch electrode 32 may be transparent conductive oxides, such as ITO, IZO, ITZO, IGZO, or AZO. However, the present disclosure is not limited thereto. Here, the first touch electrode 31 may be a driving electrode (Tx), and the second touch electrode 32 may be a sensing electrode (Rx); and vice versa.

[0130] Since the first touch electrode 31 and the second touch electrode 32 are made of transparent conductive oxide and have high transparency, the sensor 2 may overlap with the first touch electrode 31 and / or the second touch electrode 32 in the normal direction of the display device.

[0131] In the above-mentioned embodiment, the support member 14 has a regular shape. However, the present disclosure is not limited thereto. In other embodiments of the present disclosure, the support member 14 may have a conical shape, and different portions thereof have different thicknesses.

[0132] In the following, Fig.13 and Fig.14 It is used to explain how to define whether a support member with a conical shape overlaps or does not overlap the sensor.

[0133] Fig.13 is a cross-sectional view of the display device, revealing that the sensor does not overlap with the support; Fig.14 is a cross-section of the display device, showing the overlap of the sensor with the support. Fig.13 and Fig.14 The structure of the display device Figure 3 The above is similar and will not be repeated.

[0134] When the support member has a conical shape, the support member 14 can be defined as having a main body 14a and a bottom 14b, wherein the bottom 14b has a height H1, the height H1 is the maximum height of the bottom 14b, the height H1 is 15% of the overall thickness H of the support member 14 (H1=15% x H), the portion of the support member 14 less than or equal to the height H1 is the bottom 14b, and the other portion of the support member 14 is the main body 14a.

[0135] The support member 14 of the present disclosure can be transparent. The bottom 14b of the support member 14 can still have good transparency. However, the main body 14a of the support member 14 gradually becomes translucent because it has a greater thickness than the bottom 14b. If the bottom 14b of the support member 14 overlaps with the sensor 2 (especially the sensing area S), such as Fig.13 As shown in FIG. 1 , the bottom 14b may not significantly affect the incident light from the upper side of the display device, and thus will not affect the sensing resolution. However, if the sensor 2 overlaps with the main body 14a of the support member 14, as shown in FIG. Fig.14 As shown, the incident light may be mostly affected or change its path, which may affect the resolution of the sensor 2 and cause a blurred image. Therefore, in the present disclosure, the sensor 2 must not overlap with the main body 14a of the support member 14.

[0136] The above embodiments only disclose OLED display devices and LCD display devices, but the present disclosure is not limited thereto. In other embodiments of the present disclosure, the display medium may include: quantum dots (QD), quantum dot light emitting diodes (QDLED or QLED), fluorescent molecules, phosphorescent molecules, inorganic light emitting diodes (LED), sub-millimeter micro light emitting diodes (mini LED), micro light emitting diodes (micro LED), or other display media; but the present disclosure is not limited thereto.

[0137] Furthermore, the aforementioned embodiments only disclose an on-cell touch display device, but the present disclosure is not limited thereto. In other embodiments of the present disclosure, the display device may be an in-cell touch display device, an out-cell touch display device, or a hybrid touch display device, depending on the position of the touch electrodes.

[0138] The display device or touch display device formed by any of the embodiments of the present disclosure can be used in any known electronic device that requires a display screen, such as monitors, mobile phones, laptops, cameras, speakers, mobile navigation, televisions, and any other electronic device that displays images.

[0139] Although the present disclosure is disclosed with the aforementioned embodiments in this specification, any changes or improvements may be made without departing from the concept of the present disclosure and the scope of the claims.

Claims

1. A display device having a display area, wherein the display device comprises: a substrate; A driving layer, disposed on the substrate; a display medium layer, disposed on the driving layer; a sensor disposed under the substrate, wherein the display area includes a light-emitting area, and in a normal direction of the display device, the sensor overlaps with the display area; a pixel definition layer, disposed on the driving layer and having an opening, wherein a light emitting layer of the display medium layer is disposed in the opening; as well as A support member, disposed on the pixel definition layer; In which, in an upward viewing direction of the display device, the maximum width of the support member is smaller than the maximum width of the sensor, and in a cross-section, the distance between the bottom surface of the support member and an upper surface of the substrate is greater than the distance between the upper surface of the light-emitting layer and the upper surface of the substrate.

2. The display device according to claim 1, characterized in that The sensor overlaps the light emitting area in the normal direction of the display device.

3. The display device according to claim 1, characterized in that The sensor does not overlap with the light-emitting area in the normal direction of the display device.

4. The display device according to claim 1, characterized in that Also includes: A touch electrode is disposed on the display medium layer; wherein the sensor overlaps with the touch electrode in the normal direction of the display device.

5. The display device according to claim 1, characterized in that Also includes: A touch electrode is disposed on the display medium layer; wherein the sensor does not overlap with the touch electrode in the normal direction of the display device.

6. The display device according to claim 1, characterized in that Also includes: A facing substrate; a first light shielding layer, disposed on the facing substrate; wherein the first light shielding layer has another opening, and the sensor overlaps with the other opening in the normal direction of the display device.

7. The display device according to claim 1, characterized in that It also includes: a first light shielding layer, which is disposed on the substrate; wherein the first light shielding layer has another opening, and the sensor overlaps with the other opening in the normal direction of the display device.

Images