CN203595908U

CN203595908U - Graphical OLED timer

Info

Publication number: CN203595908U
Application number: CN201320602116.3U
Authority: CN
Inventors: 倪莹莹; 吴海燕; 王静; 王崟; 张祝新; 胡永岚
Original assignee: Beijing Visionox Technology Co Ltd
Current assignee: Guan Yeolight Technology Co Ltd
Priority date: 2013-09-24
Filing date: 2013-09-24
Publication date: 2014-05-14
Anticipated expiration: 2023-09-24

Abstract

The utility model discloses a graphical OLED timer comprising an OLED screen body and a driving circuit board electrically connected with the OLED screen body. The OLED screen body is provided with a timing display graph formed by a plurality of time indicating areas in an integrated manner. The time indicating areas are independently arranged, and are respectively electrically connected with the driving circuit board. The driving circuit board is used for controlling the graph display of various time indicating areas. The graphical OLED timer is advantageous in that the structure is simple, light and portable, and the color development is uniform; the graphical OLED timer can be used to display any colors in the visible light range by adjusting the illumination colors of the illumination layer of the OLED screen, and the colors are abundant; and in addition, the OLED screen body is the self-luminous device, and is close to the Lambertian source, and the beneficial performance of the wide specific viewing angle of the graphical OLED timer cannot be affected by the observation angle.

Description

Graphical OLED timer

Technical Field

The utility model relates to a time-recorder technical field, more specifically say, relate to a graphical OLED time-recorder.

Background

A timer is a device that measures time using a particular principle. The application of human beings to timepieces has been in the history for thousands of years, and from ancient sundials and leaky kettles to present clocks and stopwatches, timepieces have changed greatly in terms of weight, function, appearance and application range. The existing timer in the market at present is digital, mechanical, and the display pattern and color are monotonous, and the volume is large.

Patent document CN101390005B discloses a timepiece having a liquid crystal display device that displays colored segments, the timepiece including a cylindrical case, a display device disposed inside the case, an electronic control circuit, a battery, and a protective crystal that protects the display device from display power. The display device further includes a liquid crystal unit, a control unit, and a backlight module. The liquid crystal cell comprises at least one top substrate and one bottom substrate, at least two electrodes and at least one counter electrode formed on opposite sides of the two substrates, each electrode representing a symbolic pattern or a portion of a symbolic pattern; the control unit controls the liquid crystal cell by applying a control voltage of a determined value between the selected electrode and the counter electrode to change the orientation of the liquid crystal and cause the display of a corresponding notional graphic; the backlight module comprises at least a first light source and a second light source with different colors, the light sources emit light rays in at least one light guide device, the light guide device comprises a plurality of prisms capable of deflecting the light rays to a display surface, and the display device displays different colors through the adjustment effect of the prisms.

Although the timer can realize multicolor display, the electronic elements are various, the structure is complex, and the volume is large; more importantly, a multicolor backlight source is required to be arranged, the structure is complex, the backlight source is uneven in light emission, emitted light needs to penetrate through a liquid crystal molecular layer and an optical filter, the light emitting efficiency is low, and the display is uneven; in addition, the timer can only display the color of the backlight source and the composite color of the colors of the plurality of backlight sources, and the color is monotonous; furthermore, when the incident light from the backlight passes through the liquid crystal layer and the filter, the output light has a specific directivity, which determines that the visual angle of the timer is small, and the using effect of the timer is seriously affected.

Patent document CN202362944U discloses a traffic light for traffic timing at a small intersection with clockwise count-down. The traffic timing traffic light comprises a red light body and a green light body, wherein the red light body and the green light body comprise outer rings, inner circles used for timing are arranged in the outer rings, the inner circles adopt clockwise uniform speed reduction timing, built-in and graphical timing modes are achieved, the traffic light timing is visual, and the traffic light timing traffic light is more suitable for being used at small road junctions. However, this timing method is only suitable for short-term timing, and for devices requiring long-term timing, such as a timer, the graph will not change for a long time, and accurate reading of real-time cannot be achieved. Meanwhile, the traffic light usually adopts an LED lamp as a light source, and the miniaturization of the timer, the diversification and refinement of display graphs and the diversification of display colors are greatly difficult.

Along with the improvement of the quality requirement of the timer, higher requirements are provided for the diversity of the display colors, the display uniformity and the visual angle of the timer, so that the timer which has the advantages of diversified display colors, high display uniformity, wide visual angle, portability and easiness in carrying is urgently needed, and from the perspective of manufacturers, the timer which meets the requirements is more hopefully characterized by simple structure and capability of realizing large-scale production.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that the current time-recorder shows that the color is few, the color development is even poor, the demonstration visual angle is narrow and bulky, the utility model provides a graphical OLED time-recorder that the color development is even, rich in color, wide visual angle, light easily carry.

The technical scheme is as follows:

a graphical OLED time-recorder, its include the OLED screen body and with the drive line board that the OLED screen body electricity is connected, the shaping has the timing display figure that a plurality of time indication regions are constituteed, each on the OLED screen body the time indication region independently sets up, and respectively with drive line board electricity connect, drive line board is used for controlling each the regional figure of time indication shows.

When the timing is started, the driving circuit board controls all the time indication areas to be in the same display state, and sequentially executes the timing action on all the time indication areas, when one time indication area finishes the timing, the driving circuit board controls the time indication areas to be in a display state different from the initial timing, and simultaneously drives the time indication areas adjacent to the time indication area to continuously execute the timing action.

The driving circuit board comprises a single chip microcomputer MCU, and a buzzer, a power switch, a time adjusting key and a time starting key which are respectively and electrically connected with the single chip microcomputer MCU; the buzzer is used for sending out prompt sound when the timing is finished, the timing key is used for setting countdown time of the time indication area, and the timing starting key is used for starting timing.

Resistance R of each time display region_{Display device}The difference ratio of the resistance values is less than 30%; the time display region resistance R_{Display device}Resistance R for the time indication region_{Finger-shaped}And controlling the resistance R of the time indication region lead wire_{Guiding device}The sum of the resistance values of (a).

The timing display pattern is formed by etching an anode layer on the OLED screen body, an anode lead is respectively led out from each time indication area to an electrode lead bonding area of the OLED screen body, the electrode lead bonding area is connected with a lead of the driving circuit board, and at least one grounded cathode lead is arranged on two sides of the OLED screen body.

Be equipped with the insulating layer on the anode layer of the OLED screen body, form by a plurality of independence through the sculpture on the insulating layer the opening of the timing display figure that the time indication region is constituteed, and after the sculpture the insulating layer with the cathode layer split into with the independent fritter of insulating layer opening shape coincidence, each time indication region in draw a negative pole lead wire respectively extremely the electrode lead wire bonding region of the OLED screen body, the electrode lead wire bind regional with the pin-connected of drive circuit board, anode layer edge on the OLED screen body sets up an anode lead wire of being connected with power VCC at least.

Preferably, when the timing is started, the driving circuit board controls the timing display pattern to be in a display state, and sequentially controls each time indication area to be in a pattern flashing state; or,

when the timing is started, the driving circuit board controls the timing display graph to be in a non-display state, and sequentially controls the time indication areas to be in a graph display state.

The timing display graph is circular, the time indication areas are arranged in an equally-divided mode along the radial direction of the timing display graph, and an insulating layer covers the time indication areas.

The time indication area is provided with 12 time indication areas, and the timing time of each time indication area is 5 minutes.

The time indication area is provided with 60 time indication areas, and the timing time of each time indication area is 1 minute.

The time indication area is one or a combination of a plurality of fan-shaped, heart-shaped, digital, oval, square, triangular, trapezoidal, fruit-shaped and leaf-shaped areas.

The luminous color of the time indication area is any color in a visible light range.

The timer further comprises a shell used for installing the driving circuit board and the OLED screen body, and a magnet is arranged on the shell.

The timer is also provided with a base used for being arranged on a desktop, and the shell is arranged on the base.

The utility model provides a beneficial effect that technical scheme brought is:

the utility model discloses a graphical OLED timer, make a plurality of independent time indication regions on the OLED screen body, each time indication region is in same state (close in unison not show or open the demonstration) when timing begins, control each time indication region one by one through driving the circuit board, make it open and show the timing image or close time indication region one by one, confirm the time duration of using time through the quantity in time indication region and the time duration in single time indication region; the graphical OLED timer is simple in structure, light and portable; moreover, the graphical OLED timer can display any color in a visible light range by adjusting the light emitting color of the light emitting layer in the OLED screen body, and the color is rich; in addition, the OLED screen body is a self-luminous device and is close to a Lambertian (Lambertian) light source, so that the graphical OLED timer has the beneficial performance of wide visual angle and is not influenced by the viewing angle.

In addition, in order to guarantee a demonstration homogeneity of each demonstration pattern among graphical OLED time-recorder, calculate required resistance value respectively according to the luminous area of each independent time indication region and the distance apart from electrode lead bonding region, design length, the width of negative pole lead wire or positive pole lead wire according to the resistance value that calculates to this adjustment shows the homogeneity of pattern.

Resistance R of each time display region_{Display device}Resistance equal to time indication zone resistance R_{Finger-shaped}Plus a lead resistance R controlling the time indication area_{Guiding device}Wherein R is_{Finger-shaped}Related to the luminous area of each independent timing display graphic unit, R_{Guiding device}Related to the distance from the electrode lead bonding area.

Wherein, the lead wire resistor R_{Guiding device}=（W/L）*R_{Surface of}The lead wire is usually formed by connecting n zigzag broken lines, so the lead wire can also be recorded as sigmaⁿ ₁(W/L) n R; the lead is generally strip-shaped, the length along the direction in which current flows is long (L), the length in the vertical direction is wide (W), and the W and the L can be uniform in length unit; surface resistance R_{Surface of}: strip-shaped conductive films of the same material are generally used as leads, and therefore R_{Surface of}I.e., the sheet resistance of the conductive film, can be determined by testing and has the unit of Ω/□.

The electrical resistance of the unshared cathode or anode leads needs to be balanced to make the input electricalThe voltage drop consumed on the leads from the ports (i.e., the lead bonding areas) to the light emitting areas remains the same, and the brightness of each time indication area is uniform. If the light-emitting area of each time indication area is the same, the resistance values of all the leads can be set to be consistent; if the light-emitting areas of the icons are different, consideration is given to the fact that the resistance value of the lead of the icon with the small light-emitting area needs to be designed to be larger to achieve the consistent brightness, so that the resistance R of the display area at each time is larger_{Display device}The difference ratio of (a) is less than 30%. After the OLED screen body is determined, the length L and the width W of each lead wire are directly measured, and then R can be calculated_{Guiding device}。

In addition, the conductive film for preparing the lead wire, such as ITO, has a large surface resistance, usually 10-20 Ω/□, and in order to reduce the voltage drop on the lead wire, the present invention also uses a low resistance material laid on the lead wire for displaying the pattern at regular time for balancing the resistance, and the low resistance material can be Cr, Mo, Al, MoAlMo, etc. to achieve the purpose of displaying uniformly.

And simultaneously, a graphical OLED time-recorder can show different shapes through the design of the regional shape of time indication, simple process, it is abundanter to show the pattern.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is an assembly view of the timepiece provided by the present invention;

fig. 2 is a schematic structural diagram of the timer provided by the present invention;

FIG. 3 is a rear view of FIG. 2;

FIG. 4 is a schematic view of the timer with a base of the present invention being placed on a horizontal desktop;

FIG. 5 is a graphical illustration of a timing display;

FIG. 6 is a schematic diagram of a common cathode lead in an OLED panel;

fig. 7 is a schematic diagram of the overall structure of the common cathode OLED screen in the timer provided by the present invention;

FIG. 8 is a schematic diagram of the structure of a common anode lead in an OLED panel;

FIG. 9 is a schematic diagram of the overall structure of a common anode OLED panel in the timer provided by the present invention;

fig. 10 is a schematic view of a common anode spacer in an OLED panel provided by the present invention;

fig. 11 is a schematic diagram of a common cathode circuit connection between a driving circuit board and an OLED panel according to an embodiment of the present invention;

fig. 12 is a schematic diagram of a common cathode circuit connection between a driving circuit board and an OLED panel according to another embodiment of the present invention;

fig. 13 is a schematic diagram of a common anode connection circuit between a driving circuit board and an OLED panel according to an embodiment of the present invention;

fig. 14 is a schematic circuit diagram of the timer provided by the present invention;

fig. 15 is a schematic timing diagram of an OLED panel in a timer according to another embodiment of the present invention;

fig. 16 is a schematic timing diagram of an OLED panel in a timer according to another embodiment of the present invention;

fig. 17 is a schematic timing diagram of an OLED panel in a timer according to another embodiment of the present invention;

fig. 18 is a timing diagram of an OLED panel in a timer according to another embodiment of the present invention.

In the figure: 1-a panel; 2-a front panel; 3-OLED screen body, 31-timing display graph, 311-time indication area, 312-insulating layer, 32-timing key, 33-starting timing key and 33-power switch; 4-a drive circuit board; 5-rear cover; 6-a battery; 7-a magnet; 8-a battery cover; 9-a buzzer; 10-a base; 11-anode lead; 12-a cathode lead; 13-electrode lead bonding area; and 14-anode layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The embodiment provides a graphical OLED timer, simple structure, light and easy to carry, as shown in FIGS. 1-3, the graphical OLED timer comprises a panel 1, an OLED screen body 3, a driving circuit board 4, a housing and a battery 6, wherein the OLED screen body 3 is electrically connected with the driving circuit board 4, a timing display graph formed by a plurality of time indication areas 311 is formed on the OLED screen body 3, each time indication area 311 is independently arranged and is respectively electrically connected with the driving circuit board 4, and the driving circuit board 4 is used for controlling the graph display of each time indication area 311. The housing here comprises a front panel 2 and a rear cover 5, wherein the OLED screen 3 and the driving circuit board 4 are arranged between the front panel 2 and the rear cover 5, and the battery 6 is arranged in the rear cover 5 and is fixed by a battery cover 8.

When the timing is started, the driving circuit board 4 controls all the time indication areas 311 to be in the same display state, and sequentially performs the timing operation on each time indication area 311, when one time indication area 311 finishes the timing, the driving circuit board 4 controls the display state to be different from the initial timing, and simultaneously drives the adjacent time indication area 311 to continue to perform the timing operation.

The power switch 34 is turned on, the timer starts to start, the drive circuit board 4 controls the whole timing display pattern 31 to be in a display state, and sequentially controls each time indication area 311 to be in a pattern non-display state, namely, a closing state.

The utility model discloses also can be when the timing begins, drive circuit board 4 control timing display figure 31 and be in the non-display state, OLED screen body 3 does not show each time indication region 311 promptly, then makes it be in the figure display state through controlling each time indication region 311 in order to realize the timing function.

The patterned OLED timer in this embodiment is circular, and as other embodiments of the present invention, the patterned OLED timer is not limited to this shape, and may be designed into other unique shapes; in addition, the time indication area 311 can enable the patterned OLED timer to display any color in a visible light range through adjusting the light emitting color of the light emitting layer in the OLED screen body, so that the color is rich.

In addition, as shown in fig. 4, in the present embodiment, a base 10 for being placed on a plane is disposed on the patterned OLED timer, the housing can be disposed on the base 10, and then the base is placed on a desktop for easy observation.

In this embodiment, the driving circuit board 4 includes a single-chip microcomputer MCU, and a buzzer 9, a power switch 34, a timing button 32 and a start timing button 33 which are electrically connected to the single-chip microcomputer MCU respectively; the buzzer 9 is used for giving out a prompt sound when the timing is over, as shown in fig. 3; the time key 32 is used to set a countdown time in the time indication area 311, and the start time key 33 is used to start timing, as shown in fig. 2.

In order to facilitate the use of the timer, the patterned OLED timer of this embodiment further has a magnet 7 mounted on the housing, as shown in fig. 1, so that the timer can be attached to a refrigerator or other metal object.

The structure of the OLED screen body 3 of the utility model has the following two kinds, this embodiment the optional one of graphical OLED time-recorder:

(1) the time indication regions 311 in the timing display pattern 31 are connected by common cathodes:

the anode layer 14 is divided into the same shape as the time indication areas 311 by an etching process, and gaps between the anode layer units are covered with insulating layers 312, which are separated independently and insulated from each other, so that the time indication areas 311 are respectively led out through the respective anode leads 11 and extend to the electrode lead bonding areas 13 of the OLED panel 3, as shown in fig. 6 and 7, and the electrode lead bonding areas 13 are electrically connected with leads of the driving circuit board 4.

As shown in fig. 6 and 7, each of the time indication regions 311 shares the same cathode, which is grounded via cathode leads 12 disposed on both sides of the OLED panel 3.

As shown in fig. 11, the driving circuit board 4 controls the control circuit of the OLED panel 3, and connects the anode layer unit of each time indication area 311 in the OLED panel 3 to the I/O port of the MCU; a current limiting resistor R with proper resistance and same resistance is arranged between the I/O port and the anode layer unit₁、R₂、R₃Current limiting is carried out; and a reset key RST of the MCU is electrically connected with a power supply VCC through a current limiting circuit R4 and is grounded through a capacitor C1. In order to clearly and intuitively express the electrical connection relationship between the driving circuit board 4 and the OLED panel 3 in the present invention, only 3 anode units and the current limiting resistors connected thereto are shown in fig. 11, in the present invention, the number of the anode units and the current limiting resistors connected thereto should be the same as the number of the time indication regions 311.

A resistance loaded on each of the time indication regions 311, i.e., a display region resistance R_{Display device}Equal to the time indication area resistance R_{Finger-shaped}Plus a lead resistance R controlling the time indication area_{Guiding device}Wherein R is_{Finger-shaped}Independently of each otherRelative to the luminous area of the timing display graphic unit, R_{Guiding device}Related to the distance from the electrode lead bonding area.

From the size of the area of each of the time indication regions 311, R can be estimated_{Finger-shaped}The lead resistance R of the time indication region 311 to be smaller in light emitting area_{Guiding device}Designed to be larger so that the resistance R of each time display region_{Display device}Is less than 30% to achieve the effect of displaying uniformity.

After the size of the OLED screen body is determined, the length and the width of each lead wire can be designed, and R can be calculated by directly measuring the length L and the width W of each lead wire_{Guiding device}；

As another embodiment of the present invention, as shown in fig. 12, the resistance R in the time indication region may be set_{Finger-shaped}And power tubes Q1, Q2 and Q3 are arranged between the anode layer unit and the OLED screen body 3 so as to increase the driving capability of the driving circuit board 4 to the OLED screen body 3, the drain electrode of each power tube is electrically connected with the anode layer unit of the time indication area 311, and the cathode of each power tube is grounded.

(2) The time indication areas 311 in the timing display pattern 31 are connected by common anode:

as shown in fig. 8 and fig. 9, each time indication region 311 shares the same anode layer 14, an insulating layer 312 is directly disposed on the anode layer 14, and an etching process is used to etch the insulating layer 312 to form openings having the same shape as each time indication region 311, exposing a portion of the anode layer 14, wherein the openings are separated from each other and are not connected, as shown in fig. 10; the light emitting layer and the cathode layer in the organic light emitting diode are sequentially prepared in the opening of the insulating layer 312 from bottom to top, and the etched insulating layer 312 divides the cathode layer into independent and insulated cathode layer units which are overlapped with the opening of the insulating layer.

The cathode layer unit is electrically connected to an electrode lead bonding area 13 of the OLED screen body 3 through respective cathode leads 12, and the electrode lead bonding area 13 is electrically connected to a lead of the driving circuit board 4.

As shown in fig. 9, each of the time indication regions 311 shares the same anode layer 14, and the anode layer 14 is electrically connected to a power source VCC through an anode lead 11 disposed at the edge of the anode layer 14 in the OLED panel.

As shown in fig. 8, in order to ensure the display uniformity of each independent time indication region 311, it is necessary to calculate a required resistance value from the light emitting area of each independent time indication region 311 and the distance from the electrode lead bonding region 13, and to adjust the length and width of the cathode lead 12 or the anode lead 11 according to the calculated resistance value.

A resistance loaded on each of the time indication regions 311, i.e., a display region resistance R_{Display device}Equal to the time indication area resistance R_{Finger-shaped}Plus a lead resistance R controlling the time indication area_{Guiding device}Wherein R is_{Finger-shaped}Related to the luminous area of each independent timing display graphic unit, R_{Guiding device}Related to the distance from the electrode lead bonding area.

Wherein, the lead wire resistor R_{Guiding device}=（W/L）*R_{Surface of}The lead wire is usually formed by connecting n zigzag broken lines, so the lead wire can also be recorded as sigmaⁿ ₁(W/L) n R; the lead is generally strip-shaped, the length along the direction in which current flows is long (L), the length in the vertical direction is wide (W), and the W and the L can be uniform in length unit; surface resistanceR_{Surface of}: strip-shaped conductive films of the same material are generally used as leads, and therefore R_{Surface of}I.e., the sheet resistance of the conductive film, can be determined by testing and has the unit of Ω/□.

From the size of the area of each of the time indication regions 311, R can be estimated_{Finger-shaped}The lead resistance R of the time indication region 311 needs to be reduced to make the display uniform_{Guiding device}The design is larger.

In addition, the conducting film of preparation lead wire in this embodiment is ITO, and surface resistance is great, and is 10-20 omega/□ usually, in order to reduce the pressure drop on the lead wire, the utility model discloses still the low resistance material of laying on the lead wire of timing display figure is used for balanced resistance, the low resistance material can be Cr, Mo, Al, MoAlMo (Mo layer, Al layer and Mo layer deposited in proper order) etc. to reach and show even purpose, the preferred MoAlMo of this embodiment.

Fig. 13 shows a control circuit of the driving circuit board 4 to the OLED panel 3, the common anode layer 14 of each time indication region 311 in all the OLED panels is electrically connected to a power VCC through an anode lead 11, the cathode layer unit in each time indication region 311 is connected to an I/O port of the monolithic processor through a cathode lead 12, and a current limiting resistor R with appropriate resistance and the same resistance is further disposed between the I/O port and the cathode layer unit₁、R₂、R₃And current limiting is carried out. And a reset key RST of the MCU is electrically connected with a power supply VCC through a current limiting circuit R4 and is grounded through a capacitor C1.

In order to clearly and intuitively express the electrical connection relationship between the driving circuit board 4 and the OLED panel 3 in the present invention, only 3 cathode layer units and the current limiting resistors connected thereto are shown in fig. 13, in the present invention, the number of the cathode layer units and the current limiting resistors connected thereto should be the same as the number of the time indication regions 311.

As shown in fig. 2 and fig. 5, in the present embodiment, 12 time indication areas 311 are provided, and the counted time of each time indication area 311 is 5 minutes. The OLED panel 3 lights up a timing display pattern 31 rotated 360 degrees around a point according to the time change. The time indication area 311 has 12 cells, each cell is clocked for five minutes, one week is one hour, and one cell is extinguished after five minutes. The grids to be extinguished in the countdown process will continuously flash until five minutes are up to extinction. By analogy, the lighted lattices in the timer are sequentially extinguished until the time is up, and the lattices are completely extinguished and can be reminded by sound.

Also, as another embodiment of the present invention, the number of the time indication areas 311 may be set to 60, and the timing time of each time indication area 311 is 1 minute, i.e. one hour goes out.

As shown in fig. 14, the power switch 34 is toggled, the icon is turned off after being lit for several seconds, the time-adjusting button 32 is pressed to determine the countdown time, the time-starting button 33 is pressed, the countdown starts, the time indication area 311 located at the highest position on the OLED screen starts to be displayed at a certain frequency, when the time indicated by one frame is counted, the next highest position starts to flash, and so on until the counting is finished, the buzzer 9 makes a droplet sound, and after 10 minutes, if no operation is performed, the low-power mode is entered. The buzzer 9 passes through a current limiting resistor R₅And power tube Q₄The timing time, the flashing of the OLED screen body 3 according to a certain frequency and the sounding of the buzzer 9 are all controlled by the program of the singlechip MCU. After the timing is finished, the buzzer 9 sends out the dripping sound, the system enters a power-down mode state, and the timing operation can be continued by pressing the timing key 32 at the moment.

As other embodiments of the present invention, the timing display pattern on the OLED screen body 3 is not only the form shown in fig. 2, but also can be abstract patterns such as petals and leaves of a fruit machine, and the pattern change according to the time enrichment regularity can realize the graphical timing function. The timing display graph can be realized by the design of the anode layer unit or the cathode layer unit, the process is simple, the selectable patterns are rich, and as shown in fig. 15-18, the time indication area 311 in the timing display graph can be one or a combination of a plurality of fan-shaped, heart-shaped, digital, oval, square, triangular, trapezoidal, fruit-shaped and blade-shaped areas.

The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The graphical OLED timer is characterized by comprising an OLED screen body and a driving circuit board electrically connected with the OLED screen body, wherein a timing display graph formed by a plurality of time indication areas is formed on the OLED screen body, each time indication area is independently arranged and is respectively and electrically connected with the driving circuit board, and the driving circuit board is used for controlling graph display of each time indication area.

2. The patterned OLED timer according to claim 1, wherein the driving circuit board comprises a MCU, and a buzzer, a power switch, a timing button and a start timing button electrically connected to the MCU respectively; the buzzer is used for sending out prompt sound when the timing is finished, the timing key is used for setting countdown time of the time indication area, and the timing starting key is used for starting timing.

3. The patterned OLED timepiece of claim 2 wherein each time display region resistance R_{Display device}The difference ratio of the resistance values is less than 30%; the time display region resistance R_{Display device}Resistance R for the time indication region_{Finger-shaped}And controlling the resistance R of the time indication region lead wire_{Guiding device}The sum of the resistance values of (a).

4. The patterned OLED timer according to claim 3, wherein the timing display pattern is formed by etching an anode layer on the OLED screen body, an anode lead is led out from each time indication region to an electrode lead bonding region of the OLED screen body, the electrode lead bonding region is connected to the lead of the driving circuit board, and at least one grounded cathode lead is disposed on two sides of the OLED screen body.

5. The patterned OLED timer according to claim 3, wherein an insulating layer is disposed on the anode layer of the OLED screen body, an opening of a timing display pattern formed by a plurality of independent time indication regions is formed on the insulating layer through etching, the cathode layer is divided into independent small blocks with the shape coinciding with the opening of the insulating layer by the insulating layer after etching, each time indication region is respectively led out a cathode lead to the electrode lead bonding region of the OLED screen body, the electrode lead bonding region is connected with the lead of the driving circuit board, and at least one anode lead connected with the power VCC is disposed at the edge of the anode layer on the OLED screen body.

6. The patterned OLED timer according to claim 4 or 5, wherein the timing display pattern is circular, each of the time indication regions is equally spaced along a radial direction of the timing display pattern, and an insulating layer is covered between each of the time indication regions.

7. The patterned OLED timer according to claim 6, further comprising a housing for mounting the driving circuit board and the OLED screen, wherein the housing is provided with a magnet.

8. The patterned OLED timer as recited in claim 7, further comprising a base for resting on a desktop, wherein the housing is disposed on the base.