CN112965629A

CN112965629A - Display assembly, display screen and electronic equipment

Info

Publication number: CN112965629A
Application number: CN202110228523.1A
Authority: CN
Inventors: 李志林
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-06-15

Abstract

The application provides a display module, a display screen and an electronic device. The display assembly includes a plurality of pixel units. The pixel unit includes a first sub-pixel. The first sub-pixel comprises a first light emitting unit and a first filtering unit. The first light-emitting unit is used for emitting first light rays, the wave bands of the first light rays cover at least four first wave bands, and each first wave band corresponds to light rays of one color. The first light filtering unit is arranged opposite to the first light emitting unit, the first light passes through the first light filtering unit to form first target light, the wave band of the first target light corresponds to a first wave band, and the first target light is used for forming display light of the first sub-pixel. The application provides a display module, display screen and electronic equipment can reduce the stimulation of light to user's eyes when using.

Description

Display assembly, display screen and electronic equipment

Technical Field

The application relates to the technical field of electronics, concretely relates to display module, display screen and electronic equipment.

Background

In the era of mobile internet, users mainly rely on electronic devices to process information, so that the users need to face the display screen of the electronic devices for a long time, and eyes are easily stimulated by light of the display screen. Therefore, how to design the structure of the display screen to reduce the irritation of light to the eyes of the user becomes a technical problem to be solved.

Disclosure of Invention

The application provides a can reduce light to amazing display module, display screen and electronic equipment of user's eyes.

In one aspect, the present application provides a display assembly comprising a plurality of pixel units, the pixel units comprising a first sub-pixel, the first sub-pixel comprising:

the light source comprises a first light emitting unit, a second light emitting unit and a control unit, wherein the first light emitting unit is used for emitting first light rays, the wave bands of the first light rays cover at least four first wave bands, and each first wave band corresponds to light rays of one color; and

the first light filtering unit is arranged opposite to the first light emitting unit, the first light penetrates through the first light filtering unit to form first target light, the wave band of the first target light corresponds to one or more first wave bands, and the first target light is used for forming display light of the first sub-pixels.

On the other hand, the application also provides a display screen, which comprises a touch control assembly and the display assembly, wherein the touch control assembly is arranged on the display side of the display assembly.

In another aspect, the present application further provides an electronic device, which includes a housing and a display screen, wherein the housing is connected to the display screen.

The application provides a first luminescence unit of first sub-pixel in display module launches first light, because the wave band of first light covers at least four first wave bands, and every first wave band corresponds the light of a colour, then the light intensity that every first wave band corresponds is relatively weak, the energy is less, consequently, the first sub-pixel's that first light formed behind first light filtering unit demonstration light intensity is relatively weak, the energy is less, thereby, this display module's demonstration reduces the stimulation of user's eyes. The display screen and the electronic equipment provided by the application comprise the display component, so that the stimulation to the eyes of a user is reduced in the using process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of the electronic device of FIG. 1;

FIG. 3 is a schematic plan view of a display screen of the electronic device shown in FIG. 2;

FIG. 4 is a schematic cross-sectional view of the display screen of FIG. 3 taken along line A-A;

FIG. 5 is another schematic cross-sectional view of the display screen of FIG. 3 taken along line A-A;

FIG. 6 is a schematic plan view of a display assembly of the display screen of FIG. 3;

fig. 7 is a schematic diagram of the first sub-pixel shown in fig. 6 including a first light emitting unit and a first filtering unit;

fig. 8 is a schematic diagram of the second sub-pixel shown in fig. 6 including a second light emitting unit and a second filtering unit;

fig. 9 is another schematic diagram of the second sub-pixel shown in fig. 6 including a second light emitting unit and a second filtering unit;

fig. 10 is a schematic diagram of the third sub-pixel shown in fig. 6 including a third light emitting unit and a third filtering unit;

fig. 11 is another schematic diagram of the third sub-pixel shown in fig. 6 including a third light emitting unit and a third filtering unit;

FIG. 12 is a schematic diagram of the pixel unit shown in FIG. 6 including a light shielding unit;

fig. 13 is a schematic diagram of the display module shown in fig. 6 further including a first driving unit, a second driving unit, a third driving unit and a control unit.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The embodiments listed in the present application may be appropriately combined with each other.

As shown in fig. 1, fig. 1 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present disclosure. The electronic device 100 includes a housing 2 and a display screen 1. For example, the electronic device 100 may be a mobile phone, a tablet computer, a desktop computer, a laptop computer, an electronic reader, a handheld computer, an electronic display screen, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a cellular phone, a Personal Digital Assistant (PDA), an Augmented Reality (AR) \\ Virtual Reality (VR) device, a media player, a watch, a necklace, glasses, or the like having a housing 2 and a display screen 1. The embodiment of the present application takes a mobile phone as an example for explanation.

Referring to fig. 1 and 2, the housing 2 includes a middle frame 21 and a back plate 22. The middle frame 21 is fixedly connected with the back plate 22 or integrally formed. The housing 2 is connected to the display screen 1. Specifically, the display screen 1 is connected to a side of the middle frame 21 away from the back plate 22. The display screen 1, the middle frame 21 and the back plate 22 are surrounded to form an accommodating space, and the accommodating space can be used for accommodating a battery, a main board, a camera assembly and the like.

As shown in fig. 3, the display screen 1 may be a flexible screen, which may be bendable, or a conventional hard screen. The display screen 1 has a display area 11 for displaying a picture. Of course, in other embodiments, the display screen 1 may also have the non-display area 12 disposed on one or more sides of the display area 11, and it is understood that the non-display area 12 is not used for displaying pictures. The following embodiment takes as an example a full screen including only the display area 11.

As shown in fig. 4, the display screen 1 includes a touch component 13 and a display component 10. The touch device 13 is stacked with the display device 10. Optionally, the touch component 13 covers a side of the display component 10 for displaying. The touch control mode of the touch control assembly 13 may be pressure type touch control, resistance type touch control, capacitance type touch control, infrared touch control, surface acoustic wave type touch control, and the like. The Display of the Display assembly 10 is an Organic Light Emitting Display (OLED).

Of course, in other embodiments, as shown in fig. 5, the display screen 1 may further include a cover plate 14, a polarization assembly 15, and the like. The cover 14 may be a glass cover, a transparent composite cover, or the like. The cover 14 is used for protecting the touch assembly 13 and the display assembly 10. The cover plate 14 is disposed on a side of the touch assembly 13 facing away from the display assembly 10. Optionally, the cover plate 14 has the functions of impact resistance, scratch resistance, oil stain resistance, fingerprint resistance, light transmittance enhancement and the like after being subjected to the process treatments such as coating, polishing, film coating and the like. The polarizing assembly 15 may include a polarizer and a quarter wave plate. Optionally, the polarization assembly 15 is disposed between the cover plate 14 and the touch assembly 13, or the polarization assembly 15 is disposed between the touch assembly 13 and the display assembly 10. The light deflecting component 15 is used to make external natural light be absorbed completely or partially after entering the display screen 1 to reduce external natural light reflection to enter the eyes of the user. In other words, the light deflecting assembly 15 can reduce or avoid the reflection of external natural light, thereby improving the contrast and outdoor visibility of the display screen 1.

As shown in fig. 6, the display assembly 10 includes a plurality of pixel units 101. Each pixel unit 101 includes a plurality of sub-pixels. For example: each pixel unit 101 comprises two sub-pixels, or each pixel unit 101 comprises three sub-pixels, or each pixel unit 101 comprises four sub-pixels, etc. In the embodiment of the present application, a case where each pixel unit 101 includes three sub-pixels will be described as an example without specific description. The three sub-pixels are a first sub-pixel 110, a second sub-pixel 112, and a third sub-pixel 113, respectively.

As shown in fig. 7, the first subpixel 110 includes a first light emitting unit 110a and a first filtering unit 110b which are oppositely disposed. Specifically, the first filter unit 110b is disposed opposite to the first light emitting unit 110a in the thickness direction of the pixel unit 101. The thickness direction of the pixel unit 101 can refer to the Z-axis direction in the figure. In one embodiment, the first light emitting unit 110a and the first filter unit 110b are stacked along the thickness direction of the pixel unit 101.

Among them, the first light emitting unit 110a may be an organic light emitting device. The first light emitting unit 110a is used to emit first light. The first light has a wavelength band covering at least four first wavelength bands. Each first wavelength band corresponds to one color of light. Optionally, the first light band covers four first bands, and the four first bands correspond to four light beams with different colors; or the wave band of the first light covers five first wave bands, and the five first wave bands correspond to five light rays with different colors; or the wave band of the first light covers six first wave bands, and the six first wave bands correspond to six light rays with different colors. Of course, in other embodiments, the first light band may cover at least seven first bands, and the at least seven first bands correspond to at least seven different colors of light. The at least four first wave bands can be at least four wave bands of 400 nm-455 nm, 455 nm-492 nm, 492 nm-577 nm, 577 nm-597 nm, 597 nm-622 nm and 622 nm-780 nm, which respectively correspond to light rays of at least four colors of purple, blue, cyan, green, yellow, orange and red. Of course, in other embodiments, the at least four first wavelength bands may also include wavelength bands corresponding to infrared light and ultraviolet light. The light ray corresponding to one of the at least four first wave bands is first visible light. Taking the example that the wavelength band of the first light covers four first wavelength bands, the four first wavelength bands are respectively marked as a first sub-wavelength band, a second sub-wavelength band, a third sub-wavelength band and a fourth sub-wavelength band. The light corresponding to one of the first sub-band, the second sub-band, the third sub-band and the fourth sub-band is a first visible light. It is understood that the first visible light may be one of red, orange, yellow, green, cyan, blue, violet, etc. visible light. When the first visible light is red visible light, one of the first sub-band, the second sub-band, the third sub-band and the fourth sub-band is 622nm to 780 nm. When the first visible light is blue visible light, one of the first sub-band, the second sub-band, the third sub-band and the fourth sub-band is 455nm to 492 nm. When the first visible light is green visible light, one of the first sub-band, the second sub-band, the third sub-band and the fourth sub-band is 492nm to 577 nm.

The first filtering unit 110b is used for transmitting at least a part of the first visible light and blocking other light in the first wavelength band from passing through. The first filter unit 110b may be a filter film. The first light passes through the first filter unit 110b to form a first target light, a wavelength band of the first target light corresponds to a first wavelength band, and the first target light forms a display light of the first sub-pixel 110. It is understood that the first visible light passes through the first filtering unit 110b, and the other light rays in the first wavelength band do not pass through the first filtering unit 110 b. In one embodiment, the first visible light is blue visible light, and the first visible light passes through the first filter unit 110b to form a blue first target light, which forms the display light of the first sub-pixel 110. For the embodiment in which the first visible light of other colors passes through the first filtering unit 110b to form the first target light of other colors, details are not repeated in this embodiment.

The first light emitting unit 110a of the first sub-pixel 110 in the display module 10 provided by the present application emits the first light, because the wavelength band of the first light covers at least four first wavelength bands, and each first wavelength band corresponds to a color light, the light intensity corresponding to each first wavelength band is weaker, the energy is smaller, and the display light intensity of the first sub-pixel 110 formed by the first light passing through the first light filtering unit 110b is weaker, the energy is smaller, so that the stimulation of the display module 10 to the eyes of the user is reduced. The display screen 1 and the electronic device 100 provided by the application comprise the display component 10, so that the irritation to the eyes of a user is reduced during the use process.

It can be understood that, the light source of the OLED display screen is improved, that is, the types of the basic light in the OLED light source are increased, so as to reduce the intensity of each type of basic light, and thus reduce the intensity of the emitted target light, so as to solve the problem that the OLED display screen is more irritating to the eyes of a user.

When the first visible light is blue visible light, the first light-emitting unit 110a emits light of other wavelength bands while emitting the blue visible light, so that the blue visible light is softer, and the blue first target light formed by the blue visible light has weaker intensity and smaller energy. In other words, the light source of the blue sub-pixel in the OLED display screen can be improved, the intensity of blue light in display light can be reduced in a targeted manner, and the stimulation of the blue light to eyes is reduced while the intensity of other light is not influenced. Compared with a white light source formed by mixing three primary colors, the first light emitting unit 110a of the present application emits the first light rays more similar to sunlight, and the first target light rays formed by the first light emitting unit are more suitable for being viewed by eyes, so that the first light emitting unit has an eye protection effect during display.

General OLED display screen needs the intensity of whole reduction light source when solving the stimulation of display light pair eyes, or through the intensity of only controlling blue photon pixel light source, and control procedure is complicated, and this application improves through the structure to light source itself, all controls every blue light subpixel when need not drive at every turn. In other words, the inventive concept of the present application can reduce the irritation of the display light to the eyes of the user by simply improving the light source structure without providing a complicated control circuit and storing a complicated control program in the display screen 1.

Alternatively, as shown in fig. 8, the second sub-pixel 112 includes a second light emitting unit 112a and a second filtering unit 112b that are oppositely disposed. Specifically, the second light emitting unit 112a and the second filter unit 112b are disposed opposite to each other in the thickness direction of the pixel unit 101. The thickness direction of the pixel unit 101 can refer to the Z-axis direction in the figure. In one embodiment, the second light emitting unit 112a and the first light emitting unit 110a are disposed in the same layer, and the second filtering unit 112b and the first filtering unit 110b are disposed in the same layer. The second light emitting unit 112a may be adjacent to or spaced apart from the first light emitting unit 110 a. The second filtering unit 112b may be adjacent to or spaced apart from the first filtering unit 110 b.

Among them, the second light emitting unit 112a may be an organic light emitting device. The second light emitting unit 112a is used for emitting second light. In one embodiment, the second light may cover at least four second wavelength bands. For example: the second light has a wavelength band covering four, five, six or at least seven second wavelength bands. The number of the second wave bands covered by the wave bands of the second light rays can be the same as or different from the number of the first wave bands covered by the wave bands of the first light rays. Each second wavelength band corresponds to a color of light. The at least four second wave bands can be at least four wave bands of 400 nm-455 nm, 455 nm-492 nm, 492 nm-577 nm, 577 nm-597 nm, 597 nm-622 nm and 622 nm-780 nm. Of course, in other embodiments, the at least four second wavelength bands may also include wavelength bands corresponding to infrared light and ultraviolet light. The at least four second bands and the at least four first bands may all be the same, or may partially overlap, or of course, the at least four second bands and the at least four first bands may not overlap at all. The light ray corresponding to one second wave band in the at least four second wave bands is second visible light. It is understood that the second visible light may be one of red, orange, yellow, green, cyan, blue, violet, etc. visible light. The color of the second visible light is different from the color of the first visible light. For example: the first visible light is blue light, and the second visible light is green light.

In another embodiment, as shown in fig. 9, the second light emitted by the second light emitting unit 112a may be light of one color, for example, the second light emitting unit 112a emits green light.

As shown in fig. 8, the second filtering unit 112b is used for transmitting at least a portion of the second visible light and blocking other light in the second wavelength band from passing through. The second filtering unit 112b may be a filter film. The second light passes through the second filter unit 112b to form a second target light, and the wavelength band of the second target light corresponds to a second wavelength band. The second object light forms display light of the first sub-pixel 112. It is understood that the second visible light passes through the second filtering unit 112b, and the other light of the second wavelength band does not pass through the second filtering unit 112 b. In one embodiment, the second visible light is green visible light, and the second visible light passes through the second filter unit 112b to form a green second target light, which forms the display light of the second sub-pixel 112. For the embodiment in which the second visible light of other colors passes through the second filtering unit 112b to form the second target light of other colors, details are not repeated in this embodiment of the application.

It can be understood that in this embodiment, the energy is dispersed when the first light emitting unit 110a emits the first light, so that the intensity of the display light of the first sub-pixel 110 is weaker and the energy is smaller; energy dispersion when second light is emitted by second light emitting unit 112a, thereby making the intensity of the display light of second sub-pixel 112 weaker, energy is smaller, and it is favorable for reducing the stimulation of whole display component 10 to the eyes of the user, in addition, when the number of the first wave bands included by the first light is the same as the number of the second wave bands included by the second light, the intensity of the two display lights of the two sub-pixels is more uniform, and it is favorable for improving the display effect of display component 10.

Alternatively, as shown in fig. 10, the third sub-pixel 113 includes a third light emitting unit 113a and a third filtering unit 113b that are oppositely disposed. Specifically, the third light emitting unit 113a and the third filter unit 113b are disposed opposite to each other in the thickness direction of the pixel unit 101. The thickness direction of the pixel unit 101 can refer to the Z-axis direction in the figure. In one embodiment, the third light emitting unit 113a is disposed in the same layer as the first light emitting unit 110a and the second light emitting unit 112a, and the third filtering unit 113b is disposed in the same layer as the first filtering unit 110b and the second filtering unit 112 b. The third light emitting unit 113a, the second light emitting unit 112a, and the first light emitting unit 110a may be sequentially arranged. The third light emitting unit 113a and the second light emitting unit 112a may be adjacent to each other or spaced apart from each other. The third filtering unit 113b, the second filtering unit 112b, and the first filtering unit 110b may be sequentially arranged. The third filtering unit 113b may be adjacent to or spaced apart from the second filtering unit 112 b.

Among them, the third light emitting unit 113a may be an organic light emitting device. The third light emitting unit 113a is for emitting third light. In one embodiment, the third light band may cover at least four third light bands. For example: the third band of light covers four, five, six or at least seven third bands. The number of the third wave bands covered by the wave band of the third light may be the same as or different from the number of the first wave bands covered by the wave band of the first light and the number of the second wave bands covered by the wave band of the second light. Each third wavelength band corresponds to one color of light. The at least four third bands may be at least four bands of 400nm to 455nm, 455nm to 492nm, 492nm to 577nm, 577nm to 597nm, 597nm to 622nm, 622nm to 780 nm. Of course, in other embodiments, the at least four third wavelength bands may also include wavelength bands corresponding to infrared light and ultraviolet light. The at least four third bands may be all the same as the at least four first bands and the at least four second bands, or may be partially overlapped with each other, and of course, the at least four third bands may not be overlapped with the at least four first bands and the at least four second bands. The light corresponding to one of the at least four third bands is a third visible light. It is understood that the third visible light may be one of red, orange, yellow, green, cyan, blue, violet, etc. The color of the third visible light is different from the color of the first visible light and the color of the second visible light. For example: the first visible light is blue, the second visible light is green, and the third visible light is red.

In another embodiment, as shown in fig. 11, the third light emitted by the third light emitting unit 113a may be light of one color, such as: the third light emitting unit 113a emits red light.

As shown in fig. 10, the third filtering unit 113b is configured to transmit at least a portion of the third visible light and block other light of the third wavelength band from passing through. The third filtering unit 113b may be a filter film. The third light passes through the third filtering unit 113b to form a third target light, and a wavelength band of the third target light corresponds to a second wavelength band. The third object light forms display light of the third sub-pixel 113. It is understood that the third visible light passes through the third filtering unit 113b, and the other light of the third wavelength band does not pass through the third filtering unit 113 b. In one embodiment, the third visible light is a red visible light, and the third visible light passes through the third filtering unit 113b to form a red third target light, which forms the display light of the third sub-pixel 113. For the embodiment in which the third visible light of other colors passes through the third filtering unit 113b to form the third target light of other colors, details are not repeated in this embodiment.

It can be understood that in this embodiment, the energy is dispersed when the first light emitting unit 110a emits the first light, so that the intensity of the display light of the first sub-pixel 110 is weaker and the energy is smaller; when the second light emitting unit 112a emits the second light, the energy is dispersed, so that the intensity of the display light of the second sub-pixel 112 is weaker and the energy is smaller; the third light emitting unit 113a disperses energy when emitting the third light, so that the intensity of the display light of the third sub-pixel 113 is weak and the energy is small; therefore, in the present embodiment, the stimulation of each pixel unit 101 to the eyes of the user is reduced, and in addition, the intensities of the three display lights of the three sub-pixels are more uniform, which is beneficial to improving the display effect of the display assembly 10.

Optionally, the wave band of the first light, the wave band of the second light, and the wave band of the third light are all visible light wave bands. In one embodiment, the first light has a wavelength range covering four first wavelength ranges of 455nm to 492nm, 492nm to 577nm, 577nm to 597nm, and 597nm to 622nm, and the first light includes blue light. The wave band of the second light covers four second wave bands of 400 nm-455 nm, 492 nm-577 nm, 577 nm-597 nm and 622 nm-780 nm, and the second light comprises green light. The wave band of the third light covers 597 nm-622 nm, 622 nm-780 nm, 455 nm-492 nm and 577 nm-597 nm, and the third light comprises red light. The wave bands of the first light, the second light and the third light are all the wave bands of the visible light, so that the burn to eyes of a user when invisible light leaks out through the first light filtering unit 110b, the second light filtering unit 112b and the third light filtering unit 113b can be avoided, and in addition, the heat during the display of the display screen 1 can be reduced.

Optionally, the primary colors of the first light include at least four of red, orange, yellow, green, cyan, blue, and violet. The primary colors of the second light include at least four of red, orange, yellow, green, cyan, blue, and violet. The primary colors of the third light include at least four of red, orange, yellow, green, cyan, blue, and violet.

Optionally, the wavelength band of the first light, the wavelength band of the second light, and the wavelength band of the third light are the same. In other words, the at least four first bands, the at least four second bands, and the at least four third bands are the same. The first light, the second light and the third light all comprise first visible light, second visible light and third visible light. In one embodiment, the first light, the second light and the third light all include red light, blue light and green light.

In the embodiment, the first light, the second light and the third light are the same, which is beneficial to manufacturing the first light emitting unit 110a, the second light emitting unit 112a and the third light emitting unit 113a with the same structure, so as to reduce the process difficulty and improve the manufacturing and processing efficiency of the display module 10.

In one embodiment, the light-transmitting wavelength band of the first filter unit 110b is a light wavelength band corresponding to blue. The light transmission wavelength band of the second filter unit 112b is a light wavelength band corresponding to green. The light-transmitting wavelength band of the third filtering unit 113b is a light wavelength band corresponding to red. As can be appreciated, the first visible light includes blue light. The second visible light includes green light. The third visible light includes red light. The first target light, the second target light and the third target light form three primary colors of light, which can be mixed to form a plurality of colors, thereby satisfying a plurality of color rendering modes of each pixel unit 101 of the display assembly 10.

In another embodiment, the light-transmitting wavelength band of the first filter unit 110b is a light wavelength band corresponding to cyan. The light transmission wavelength band of the second filter unit 112b is a light wavelength band corresponding to yellow. The light transmitting wavelength band of the third filtering unit 113b is a light wavelength band corresponding to magenta. It is understood that the first visible light comprises cyan light. The second visible light comprises yellow light. The third visible light includes magenta light. The magenta visible light may be a mixture of light rays of the third wavelength band. For example: the magenta visible light may be a mixture of two kinds of light of the third wavelength band, or a mixture of three kinds of light of the third wavelength band. The first target light, the second target light and the third target light form three primary colors of subtractive color light, and can be mixed to form a plurality of colors, thereby satisfying a plurality of color rendering modes of each pixel unit 101 of the display assembly 10.

Further, as shown in fig. 12, the pixel unit 101 further includes a light shielding unit 114. The light shielding unit 114 is disposed between the first filtering unit 110b and the second filtering unit 112b, and/or the light shielding unit 114 is disposed on a side of the first filtering unit 110b facing away from the second filtering unit 112b, and/or the light shielding unit 114 is disposed between the second filtering unit 112b and the third filtering unit 113b, and/or the light shielding unit 114 is disposed on a side of the third filtering unit 113b facing away from the second filtering unit 112 b. Here, the light shielding unit 114 may be understood as a black opaque portion in the first sub-pixel 110. In one embodiment, the pixel unit 101 includes a first light shielding unit, a second light shielding unit, a third light shielding unit and a fourth light shielding unit. The first light shielding unit is disposed on a side of the first filtering unit 110b away from the second filtering unit 112 b. The second light shielding unit is disposed between the first filtering unit 110b and the second filtering unit 112 b. The third light shielding unit is disposed between the second filter unit 112b and the third filter unit 113 b. The fourth light shielding unit is disposed on a side of the third filtering unit 113b away from the second filtering unit 112 b.

By arranging the light shielding unit 114 in the pixel unit 101, the light shielding unit 114 can be used to separate the first light filtering unit 110b, the second light filtering unit 112b and the third light filtering unit 113b, so that the transmission of the first light through the second light filtering unit 112b or the third light filtering unit 113b, the transmission of the second light through the first light filtering unit 110b and the third light filtering unit 113b, and the transmission of the third light through the first light filtering unit 110b and the second light filtering unit 112b can be reduced or avoided, and the deviation between the light formed by mixing the display light of the three sub-pixels and the light to be displayed by the pixel unit 101 occurs. In addition, the light shielding unit 114 arranged in the pixel unit 101 can increase the contrast of mixed light of cyan light, yellow light and magenta light, thereby increasing the color development contrast of the pixel unit 101.

Further, as shown in fig. 13, the display module 10 further includes a first driving unit 102, a second driving unit 103, a third driving unit 104, and a control unit 105. One end of the first driving unit 102 is electrically connected to the control unit 105, the other end of the first driving unit 102 is electrically connected to the first light emitting unit 110a, and the first driving unit 102 is configured to generate a first driving current under the control of the control unit 105. The first driving current is used to drive the first light emitting unit 110a to emit the first light. One end of the second driving unit 103 is electrically connected to the control unit 105, the other end of the second driving unit 103 is electrically connected to the second light emitting unit 112a, and the second driving unit 103 is configured to generate a second driving current under the control of the control unit 105. The second driving current is used to drive the second light emitting unit 112a to emit the second light. One end of the third driving unit 104 is electrically connected to the control unit 105, the other end of the third driving unit 104 is electrically connected to the third light emitting unit 113a, and the third driving unit 104 is configured to generate a third driving current under the control of the control unit 105. The third driving current is used to drive the third light emitting unit 113a to emit third light. The magnitude of the first driving current is used for controlling the intensity of the first light. The magnitude of the second driving current is used for controlling the intensity of the second light. The magnitude of the third driving current is used for controlling the intensity of the third light. The intensity variation of the first light can generate different first target light. The intensity variation of the second light may generate a different second target light. The intensity of the third light may produce a different third target light. Therefore, the first target light, the second target light and the third target light can be mixed to form different colors of light under the control of the control unit 105, and the pixel unit 101 displays various colors.

In this embodiment, by providing the first driving unit 102, the second driving unit 103, the third driving unit 104 and the control unit 105, the first driving unit 102 drives the first light emitting unit 110a to emit light, the control unit 105 controls the light brightness of the first light emitting unit 110a, the second driving unit 103 drives the second light emitting unit 112a to emit light, the control unit 105 controls the light brightness of the second light emitting unit 112a, the third driving unit 104 drives the third light emitting unit 113a to emit light, and the control unit 105 controls the light brightness of the third light emitting unit 113a, so as to realize the gray level control during the display after the light mixing of each pixel unit 101 and the display after the light mixing of each pixel unit 101.

The foregoing is a partial description of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.

Claims

1. A display assembly comprising a plurality of pixel cells, the pixel cells comprising a first subpixel, the first subpixel comprising:

the first light filtering unit is opposite to the first light emitting unit, the first light penetrates through the first light filtering unit to form first target light, the wave band of the first target light corresponds to one first wave band, and the first target light is used for forming display light of the first sub-pixel.

2. The display module of claim 1, wherein the pixel unit further includes a second sub-pixel, the second sub-pixel includes a second light emitting unit and a second filter unit, the second light emitting unit is configured to emit a second light, the second light has a wavelength band covering at least four second wavelength bands, each of the second wavelength bands corresponds to a color of light, the second light passes through the second filter unit to form a second target light, the second target light has a wavelength band corresponding to one of the second wavelength bands, the second target light has a color different from a color of the first target light, and the second target light is configured to form a display light of the second sub-pixel.

3. The display module of claim 2, wherein the pixel unit further includes a third sub-pixel, the third sub-pixel includes a third light emitting unit and a third filtering unit disposed opposite to each other, the third light emitting unit is configured to emit a third light, a wavelength band of the third light covers at least four third wavelength bands, each of the third wavelength bands corresponds to a color of light, the third light passes through the third filtering unit to form a third target light, the wavelength band of the third target light corresponds to one of the third wavelength bands, a color of the third target light is different from a color of the first target light and a color of the second target light, and the third target light is configured to form a display light of the third sub-pixel.

4. The display assembly of claim 3, wherein the first light band, the second light band, and the third light band are all visible light bands.

5. The display assembly of claim 3, wherein the primary colors of the first light comprise at least four of red, orange, yellow, green, cyan, blue, and violet, the primary colors of the second light comprise at least four of red, orange, yellow, green, cyan, blue, and violet, and the primary colors of the third light comprise at least four of red, orange, yellow, green, cyan, blue, and violet.

6. The display assembly of claim 3, wherein the first light has the same wavelength band, the second light has the same wavelength band, and the third light has the same wavelength band.

7. The display assembly of any one of claims 3 to 6, wherein the light-transmitting wavelength band of the first filter unit is a light wavelength band corresponding to blue, the light-transmitting wavelength band of the second filter unit is a light wavelength band corresponding to green, and the light-transmitting wavelength band of the third filter unit is a light wavelength band corresponding to red.

8. The display assembly of any one of claims 3 to 6, wherein the light-transmitting wavelength band of the first filter unit is a light wavelength band corresponding to cyan, the light-transmitting wavelength band of the second filter unit is a light wavelength band corresponding to yellow, and the light-transmitting wavelength band of the third filter unit is a light wavelength band corresponding to magenta.

9. The display module according to any one of claims 3 to 6, wherein the first filter unit, the second filter unit, and the third filter unit are sequentially arranged, and the pixel unit further includes at least one light shielding unit, the light shielding unit is disposed between the first filter unit and the second filter unit, and/or the light shielding unit is disposed on a side of the first filter unit facing away from the second filter unit, and/or the light shielding unit is disposed between the second filter unit and the third filter unit, and/or the light shielding unit is disposed on a side of the third filter unit facing away from the second filter unit.

10. The display module according to any one of claims 3 to 6, further comprising a first driving unit, a second driving unit, a third driving unit and a control unit, wherein one end of the first driving unit is electrically connected to the control unit, the other end of the first driving unit is electrically connected to the first light emitting unit, and the first driving unit is configured to generate a first driving current under the control of the control unit; one end of the second driving unit is electrically connected with the control unit, the other end of the second driving unit is electrically connected with the second light-emitting unit, and the second driving unit is used for generating a second driving current under the control of the control unit; one end of the third driving unit is electrically connected with the control unit, the other end of the third driving unit is electrically connected with the third light-emitting unit, and the third driving unit is used for generating a third driving current under the control of the control unit; the first driving current, the second driving current and the third driving current are respectively used for driving the first light-emitting unit to emit the first light, the second light-emitting unit to emit the second light and the third light-emitting unit to emit the third light.

11. A display screen comprising a touch-sensitive element and the display element of any one of claims 1 to 10, wherein the touch-sensitive element is disposed on a display side of the display element.

12. An electronic device comprising a housing and a display screen as claimed in claim 11, the housing being connected to the display screen.