CN211016463U - Display device - Google Patents

Abstract

The utility model discloses a display device, which obtains the watching position of a watcher on a display panel in an intelligent display mode; determining a watching area of a viewer on the display panel according to the watching position; controlling the watching region to be displayed at a first resolution, and simultaneously controlling the non-watching region to be displayed at a second resolution; wherein, the first resolution is greater than the second resolution, has realized the intelligent regulation of display device resolution ratio.

Description

Display device

The present application claims priority of chinese patent application entitled "a display device and a driving method thereof" filed by the intellectual property office of the people's republic of china at 11/6/2019, application No. 201911075946.3, the entire contents of which are incorporated herein by reference.

Technical Field

The utility model relates to a show technical field, especially relate to a display device.

Background

With the development of internet technology and the abundance of material conditions, the combination of various electronic devices such as mobile phones, computers, televisions, personal digital assistants, digital cameras and the like and the life and work of people becomes more and more compact, and the demand of people for intelligent display devices becomes stronger.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a display device, include: the display device comprises a display panel, a visual tracking element and a control circuit electrically connected with the display panel and the visual tracking element;

the visual tracking element is configured to acquire a viewing position of a viewer on the display panel in a smart display mode;

the control circuitry is configured to determine a viewer's gaze region of the display panel in accordance with the viewing position; controlling the watching region to display at a first resolution ratio, and simultaneously controlling the non-watching region to display at a second resolution ratio; wherein the first resolution is greater than the second resolution.

In a possible implementation manner, in the display device provided in the embodiment of the present invention, the display panel includes: the liquid crystal display comprises cholesteric liquid crystal, and a common electrode and a pixel electrode layer which are arranged on two sides of the cholesteric liquid crystal; the pixel electrode layer is composed of pixel electrodes arranged in an array.

Drawings

Fig. 1 is a flowchart of a driving method of a display device according to an embodiment of the present invention;

fig. 2 is a schematic view of a display device provided in an embodiment of the present invention in an intelligent display mode;

fig. 3 is a schematic view of a display device according to an embodiment of the present invention in a general display mode;

fig. 4 is a schematic view of a display device according to an embodiment of the present invention showing a monochrome picture;

fig. 5 is a schematic view illustrating a display device according to an embodiment of the present invention showing a color picture.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. "inner", "outer", "upper", "lower", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Embodiments of an array substrate, a method for manufacturing the same, and a flat panel detector according to embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

An embodiment of the present invention provides a driving method for a display device, as shown in fig. 1, including:

s101, acquiring the watching position of a viewer on a display panel in an intelligent display mode;

s102, determining a watching area of a viewer on the display panel according to the watching position;

s103, controlling the watching region to display at a first resolution ratio, and controlling the non-watching region to display at a second resolution ratio; wherein the first resolution is greater than the second resolution.

In the above driving method provided by the embodiment of the present invention, the viewing position of the viewer on the display panel is obtained in the intelligent display mode; determining a watching area of a viewer on the display panel according to the watching position; controlling the watching region to be displayed at a first resolution, and simultaneously controlling the non-watching region to be displayed at a second resolution; wherein, the first resolution is greater than the second resolution, has realized the intelligent regulation of display device resolution ratio.

Optionally, in the foregoing driving method provided by the embodiment of the present invention, the step S101 of obtaining the viewing position of the viewer on the display panel specifically includes:

the viewing positions of one or both eyes of a viewer on the display panel are acquired.

Optionally, in the foregoing driving method provided by the embodiment of the present invention, step S102 of determining the gazing area of the viewer on the display panel according to the viewing position may specifically be implemented in the following two possible ways:

one possible implementation is as follows: and taking the area with the set distance from the watching position as the watching area of the display panel by the viewer.

In another possible implementation manner, the display area of the display panel needs to be pre-divided into a plurality of sub-areas, and when the display device is specifically driven, the sub-area where the viewing position is located can be determined as the watching area of the display panel by the viewer.

Optionally, in the foregoing driving method provided by the embodiment of the present invention, step S103 controls the gazing region to display at a first resolution, and controls the non-gazing region to display at a second resolution, which may specifically include:

and displaying each sub-pixel in the gazing area as a first display unit, and simultaneously displaying each adjacent at least two sub-pixels in the non-gazing area as a second display unit.

For example, as shown in fig. 2, with the area within the dashed line frame shown in the figure as the gazing area, each sub-pixel within the gazing area may be displayed as a first display unit, and each adjacent four sub-pixels within the non-gazing area may be displayed as a second display unit.

It is understood that the control of the gazing region to display at a first resolution and the control of the non-gazing region to display at a second resolution smaller than the first resolution can be achieved by controlling the number of sub-pixels included in one first display unit to be smaller than the number of sub-pixels included in one first display unit. The implementation mode in which the first display unit comprises one sub-pixel and the second display unit comprises at least two sub-pixels is given as a preferred option. By the implementation mode, a high-quality (high-resolution) display picture is displayed in the gazing area of the viewer, and meanwhile, the display picture is displayed in the non-gazing area at low resolution, so that the power consumption is reduced, and the viewing experience is not influenced.

Cholesteric liquid crystals are so called because they are derived from cholesteric derivatives, the liquid crystal molecules are flat and arranged in layers, the molecules in the layers are parallel to each other, the long axes of the molecules are parallel to the plane of the layers, the directions of the long axes of the molecules in different layers are slightly changed, and the liquid crystal molecules are arranged in a helical structure along the normal direction of the layers. The pitch of the cholesteric liquid crystal is about 300nm, is the same magnitude as the wavelength of visible light, and can be changed along with different external temperature and electric field conditions, so that the emergent light color can be modulated by a method for adjusting the pitch.

Based on this, in the above driving method provided by the embodiment of the present invention, the display panel may include cholesteric liquid crystal, and each adjacent at least two sub-pixels in the non-gazing area are displayed as the second display unit, which may specifically include:

and controlling the same pitch of the cholesteric liquid crystal corresponding to each adjacent at least two sub-pixels in the non-watching area.

For example, as shown in fig. 2, the pitch of the cholesteric liquid crystal corresponding to each adjacent four sub-pixels in the non-gazing region is controlled to be the same, so that each adjacent four sub-pixels present the same color, and thus the four sub-pixels can be used as a minimum display unit (i.e., a second display unit) of the non-gazing region to display, thereby implementing fine adjustment of the light color of the display unit and presenting a better image display effect.

Further, in the above-mentioned driving method provided by the embodiment of the present invention, the display panel further includes a pixel electrode layer and a common electrode disposed on two sides of the cholesteric liquid crystal and formed by a plurality of pixel electrodes, and the pitch of the cholesteric liquid crystal corresponding to each adjacent at least two sub-pixels in the non-viewing area is controlled to be the same, which specifically includes:

and applying the same driving voltage signal to the corresponding pixel electrode of each adjacent at least two sub-pixels in the non-gazing area.

In the related art, a driving voltage signal is generally applied to a pixel electrode through a data line electrically connected thereto. The same driving voltage signals are applied to the pixel electrodes corresponding to at least two sub-pixels in the second display unit in the non-watching area, so that the process of frequently switching the positive and negative voltages of the data line is avoided, and the logic power consumption of the product is reduced.

In a possible implementation manner, in the driving method provided in the embodiment of the present invention, the method further includes:

and under the general display mode, the display panel is controlled to display at a first resolution. As shown in fig. 3, each sub-pixel of the display panel is displayed as a minimum display unit.

Based on same utility model the design, the embodiment of the utility model provides a still provide a display device, include: a display panel, a visual tracking element (e.g., a camera), and a control circuit (e.g., a system board) electrically connected to both the display panel and the visual tracking element;

the visual tracking element is configured to acquire a viewing position of a viewer on the display panel in the smart display mode;

the control circuit is configured to determine a region of gaze of a viewer on the display panel as a function of the viewing position; controlling the watching region to display at a first resolution ratio, and controlling the non-watching region to display at a second resolution ratio; wherein the first resolution is greater than the second resolution.

In the display device provided by the embodiment of the present invention, the viewing position of the viewer on the display panel is obtained in the intelligent display mode through the visual tracking element; the control circuit determines the watching area of the display panel by the viewer according to the watching position; controlling the watching region to display at a first resolution ratio, and controlling the non-watching region to display at a second resolution ratio; wherein, the first resolution is greater than the second resolution, has realized the intelligent regulation of display device resolution ratio.

The display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, an intelligent watch, a fitness wrist strap, and a personal digital assistant. Since the principle of the display device to solve the problem is similar to that of the driving method, the display device can be implemented according to the embodiment of the driving method.

Optionally, in the above display device provided in an embodiment of the present invention, the display panel includes: cholesteric liquid crystal 401, and a pixel electrode layer 402 and a common electrode 403 which are disposed on both sides of the cholesteric liquid crystal 401; the pixel electrode layer 402 is formed of pixel electrodes arranged in an array.

In general, a cholesteric liquid crystal 401 material in parallel orientation is placed between a pixel electrode layer 402 and a common electrode 403, the cholesteric liquid crystal 401 is initially in a planar texture stable state, when the same high voltage is applied to the pixel electrode layer 402 and the common electrode 403, the long axis of the cholesteric liquid crystal 401 is vertically oriented along an electric field, all light can pass through, and the polarization light valve is in a transparent state, as shown in fig. 4. When a high voltage is applied to the pixel electrode layer 402 and a low voltage is applied to the common electrode 403, a vertical electric field is formed between the pixel electrode layer 402 and the common electrode 403, and the pitch of the cholesteric liquid crystal 401 can be changed according to the intensity of the vertical electric field, so as to control the light emission color of the corresponding sub-pixel, as shown in fig. 5.

It can be understood that, the embodiment of the present invention provides a light-emitting color of the corresponding sub-pixel can be controlled by controlling the pitch of the cholesteric liquid crystal, and therefore, the color resistance layer is not required to be disposed in the display panel. Other components (such as a black matrix) of the display panel are the same as those of the prior art, and are not described herein again. Furthermore, in the embodiment of the present invention, the display panel may be a liquid crystal display panel, and may also be an electroluminescent display panel in which a light emitting layer of a sub-pixel emits white light. That is to say, realize the display panel of colored demonstration through the color resist layer among the correlation technique, all can adopt the utility model discloses "adjust the light-emitting colour of corresponding subpixel through the pitch of control cholesteric liquid crystal and replace the color resist layer" to realize the intelligent regulation of its resolution ratio.

The embodiment of the utility model provides an above-mentioned display device and drive method thereof, through under intelligent display mode, acquire the viewing position of viewer on display panel; determining a watching area of a viewer on the display panel according to the watching position; controlling the watching region to be displayed at a first resolution, and simultaneously controlling the non-watching region to be displayed at a second resolution; wherein, the first resolution is greater than the second resolution, has realized the intelligent regulation of display device resolution ratio.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (5)

1. A display device, comprising: the display device comprises a display panel, a visual tracking element and a control circuit electrically connected with the display panel and the visual tracking element;

the visual tracking element is configured to acquire a viewing position of a viewer on the display panel in a smart display mode;

the control circuitry is configured to determine a viewer's gaze region of the display panel in accordance with the viewing position; controlling the watching region to display at a first resolution ratio, and simultaneously controlling the non-watching region to display at a second resolution ratio; wherein the first resolution is greater than the second resolution.

2. The display device according to claim 1, wherein the display panel includes: the liquid crystal display comprises cholesteric liquid crystal, and a common electrode and a pixel electrode layer which are arranged on two sides of the cholesteric liquid crystal; the pixel electrode layer is composed of pixel electrodes arranged in an array.

3. The display device according to claim 2, wherein the display panel further comprises a pixel electrode layer and a common electrode which are provided on both sides of the cholesteric liquid crystal and are formed of a plurality of pixel electrodes, and the pitch of the cholesteric liquid crystal is the same for each of at least two adjacent sub-pixels in the non-viewing region.

4. A display device as claimed in claim 2, characterized in that the pitch of the cholesteric liquid crystal is 300 nm.

5. The display device of claim 1, wherein the visual tracking element is a camera.

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