US-12628539-B2 - Display apparatus and electronic device

Abstract

This application provides a display apparatus and an electronic device. The display apparatus includes a display panel, a shielding layer, and a light adjustment layer that are sequentially stacked from bottom to top. A plurality of monochrome pixels are distributed on the display panel. The shielding layer includes a light shielding structure and a plurality of through holes, the light shielding structure shields a first part of light, and the through holes are configured to allow a second part of light and a third part of light to pass through. An acute angle between the first part of light and a plane on which the display panel is located is less than a preset angle. The light adjustment layer includes a plurality of ink capsules.

Inventors

• Zheng Tian
• Shuai Zhang
• Haiming He

Assignees

• HONOR DEVICE CO., LTD.

Dates

Publication Date

20260512

Application Date

20221227

Priority Date

20220427

Claims (17)

1. 1 . A display apparatus, applied to an electronic device, wherein the display apparatus comprises a display panel, a shielding layer, and a light adjustment layer that are sequentially stacked from bottom to top; a plurality of monochrome pixels are distributed on the display panel, and the display panel is configured to emit light; the shielding layer comprises a light shielding structure and a plurality of through holes, the light shielding structure is configured to shield a first part of light, the plurality of through holes are configured to allow a second part of light and a third part of light to pass through, an acute angle between the first part of light and a plane on which the display panel is located is less than a preset angle, an acute angle between the second part of light and the plane on which the display panel is located is greater than or equal to the preset angle, and the third part of light is perpendicular to the plane on which the display panel is located; the light adjustment layer comprises a plurality of ink capsules, and each ink capsule comprises a plurality of ink particles; and the light adjustment layer is configured to: control the ink particles to accumulate on one of a left side or a right side of the ink capsule in which the ink particles are located, so that the second part of light and the third part of light in the shielding layer directly pass through the ink capsule; or control the ink particles to be laid flat, in the ink capsule in which the ink particles are located, in a direction parallel to the plane on which the display panel is located, so that the ink particles scatter the second part of light and the third part of light in the shielding layer.
2. 2 . The display apparatus according to claim 1 , wherein the light adjustment layer comprises a first control electrode layer, an ink particle layer, and a second control electrode layer that are sequentially stacked in a direction away from the shielding layer; the first control electrode layer comprises a plurality of electrode pairs, each electrode pair comprises a first electrode and a second electrode, the first electrodes and the second electrodes are laid flat in the direction parallel to the plane on which the display panel is located, and light passing through the shielding layer can pass through a region between the first electrode and the second electrode; the ink particle layer comprises the plurality of ink capsules; the second control electrode layer is made of a light-transmissive material; and the first control electrode layer is configured to carry no charge, and the first electrode and the second electrode are configured to generate a voltage difference, to control the ink particles to accumulate on one of the left side or the right side of the ink capsule in which the ink particles are located; and the first control electrode layer is further configured to carry a charge of a same type as a charge of the ink particle, and the first electrode and the second electrode each are further configured to carry a charge of a type different from that of the charge of the ink particle, to control the ink particles to be laid flat, in the ink capsule in which the ink particles are located, in the direction parallel to the plane on which the display panel is located.
3. 3 . The display apparatus according to claim 2 , wherein each electrode pair in the first control electrode layer is made of an opaque material.
4. 4 . The display apparatus according to claim 2 , wherein the first control electrode layer further comprises an insulating structure; the insulating structure is made of a transparent material; and the plurality of electrode pairs are etched on the insulating structure.
5. 5 . The display apparatus according to claim 1 , wherein the light shielding structure is a light shielding layer; the light shielding layer is made of an opaque material; and the light shielding layer comprises the plurality of through holes.
6. 6 . The display apparatus according to claim 5 , wherein a location of each through hole corresponds to one monochrome pixel on the display panel.
7. 7 . The display apparatus according to claim 2 , wherein the light shielding structure is a plurality of shielding members arranged in an array; each shielding member is made of an opaque material; each shielding member is distributed below the first electrode and the second electrode; and each shielding member is in a surrounding shape and forms one of the plurality of through holes through surrounding.
8. 8 . The display apparatus according to claim 7 , wherein a location of each through hole corresponds to one monochrome pixel on the display panel.
9. 9 . The display apparatus according to claim 7 , wherein a location of each through hole corresponds to one or more monochrome pixels on the display panel, and at least two electrode pairs are disposed at a corresponding location in the first control electrode layer above each through hole.
10. 10 . The display apparatus according to claim 2 , wherein the plurality of ink capsules comprised in the ink particle layer are laid flat in the direction parallel to the plane on which the display panel is located.
11. 11 . The display apparatus according to claim 2 , wherein the ink particle layer further comprises a base structure; the base structure is made of a light-transmissive material, and the base structure comprises a plurality of blind holes; and each blind hole is configured to fill one or more ink capsules.
12. 12 . The display apparatus according to claim 2 , wherein the ink particle layer further comprises a base structure; the base structure comprises a plurality of through holes; and each through hole is configured to fill one or more ink capsules.
13. 13 . The display apparatus according to claim 2 , wherein the first control electrode layer further comprises a first control circuit; the first control circuit comprises a first branch and a second branch that are arranged at intervals, and a quantity of the first branches is equal to a quantity of the second branches; the plurality of electrode pairs comprise a plurality of groups of electrode pairs; each first branch is configured to supply power to a first electrode in one group of electrode pairs; and each second branch is configured to supply power to a second electrode in one group of electrode pairs.
14. 14 . The display apparatus according to claim 13 , wherein the first control circuit further comprises a plurality of control units, and each control unit is configured to drive one electrode pair; and each control unit comprises one thin film transistor and one capacitor.
15. 15 . The display apparatus according to claim 1 , wherein the ink particle is made of one or more of the following materials: tungsten oxide, bismuth oxide, or titanium oxide.
16. 16 . The display apparatus according to claim 1 , wherein a light-absorbing cutoff wavelength range of the ink particle is 445 nanometers to 455 nanometers.
17. 17 . An electronic device, wherein the electronic device comprises the display apparatus according to claim 1 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a national stage of International Application No. PCT/CN2022/142496, filed on Dec. 27, 2022, which claims priority to Chinese Patent Application No. 202210453882.1, filed on Apr. 27, 2022. The disclosures of both of the aforementioned applications are hereby incorporated by reference in their entireties. TECHNICAL FIELD This application relates to the field of terminal technologies, and in particular, to a display apparatus and an electronic device. BACKGROUND A current electronic device usually has a display apparatus, to implement a display function of the electronic device. Light emitted from the display apparatus enters eyes of a user, so that the user can view content displayed on the electronic device. In different application scenarios of the electronic device, the user has different requirements for a function of the display apparatus. For example, when the user is in an outdoor scenario, emergent light of the display apparatus needs to have a small emergent angle, to reduce cases in which content displayed on the electronic device is peeped at, so that the electronic device has a peeping prevention function. When the user is in a home scenario, emergent light of the display apparatus needs to have a large emergent angle, so that the user views displayed content on the electronic device at different angles. Therefore, currently, there is an urgent need for a display apparatus that has both a peeping prevention state and a non-peeping prevention state, so that the electronic device has a peeping prevention function and a non-peeping prevention function. SUMMARY To resolve the foregoing problem, this application provides a display apparatus and an electronic device, so that an electronic device has a peeping prevention function and a non-peeping prevention function. According to a first aspect, this application provides a display apparatus applied to an electronic device. The electronic device includes but is not limited to a mobile phone, a notebook computer, a wearable electronic device (for example, a smartwatch), a tablet computer, an augmented reality (augmented reality, AR) device, a virtual reality (virtual reality, VR) device, and the like. The display apparatus includes a display panel, a shielding layer, and a light adjustment layer that are sequentially stacked from bottom to top. A plurality of monochrome pixels are distributed on the display panel, and the display panel is configured to emit light. The shielding layer includes a light shielding structure and a plurality of through holes, the light shielding structure is configured to shield a first part of light, and an acute angle between the first part of light and a plane on which the display panel is located is less than a preset angle. The plurality of through holes are configured to allow a second part of light and a third part of light to pass through, an acute angle between the second part of light and the plane on which the display panel is located is greater than or equal to the preset angle, and the third part of light is perpendicular to the plane on which the display panel is located. The light adjustment layer includes a plurality of ink capsules, and each ink capsule includes a plurality of ink particles. The light adjustment layer is configured to: control the ink particles to accumulate on one of a left side or a right side of the ink capsule in which the ink particles are located, so that the second part of light and the third part of light that pass through the plurality of through holes in the shielding layer directly pass through the ink capsule; or control the ink particles to be laid flat, in the ink capsule in which the ink particles are located, in a direction parallel to the plane on which the display panel is located, so that the ink particles scatter the second part of light and the third part of light that pass through the plurality of through holes in the shielding layer. When the display apparatus provided in this application implements a peeping prevention function, the shielding layer shields the first part of light emitted from the display panel, and the light adjustment layer controls the ink particles to accumulate on one of the left side or the right side of the ink capsule in which the ink particles are located, so that light passing through the through hole in the shielding layer directly passes through the ink capsule and is not scattered. The acute angle between the shielded first part of light and the plane on which the display panel is located is less than the preset angle, the acute angle between the second part of light passing through the through hole and the plane on which the display panel is located is greater than or equal to the preset angle, and the third part of light passing through the through hole is perpendicular to the plane on which the display panel is located, that is, the second part of light and the third part of ligh